CN2199270Y

CN2199270Y - Slope fastening box-type spring door lock with internal and external safety

Info

Publication number: CN2199270Y
Application number: CN 94210774
Authority: CN
Inventors: 孙强; 刘承仁
Original assignee: Individual
Current assignee: Liu Chengren
Priority date: 1994-05-09
Filing date: 1994-05-09
Publication date: 1995-05-31
Anticipated expiration: 2004-05-09

Abstract

The utility model provides an inclined lock catch box-type spring door lock with internal and external safety, which relates to the field of lock heads and is mainly composed of a bolt [3], a lock body [4], a shifting mechanism in the lock body, a transmission mechanism in the lock body, and a lock catch box [1]. The utility model is characterized in that the bolt [3] extends out of the end head of one end of the lock body [4] and is designed into a plane surface or an arc surface. One inclined plane or the arc surface which inclines towards the direction of the opening of the lock catch box is arranged on the upper part of the lock catch box [1]. The inclination angle of an inclined plane [2] on the upper part of the lock catch box ranges from 25 DEG to 65 DEG. The utility model remains the advantages of the original lock head and has the advantages that lockout of a door is not necessary after the door is closed, which can prevent that the lock head can be opened from a door gap.

Description

Slope fastening box-type spring door lock with internal and external safety

The utility model relates to a kind of spring side flapper lock, belongs to the tapered end field.

In existing technology, spring side's flapper lock has single dead bolt and double lock tongue formula, and general the most popular is single dead bolt pin tumbler lock, and its main feature is that dead bolt stretches out lock body part, and its termination is generally the inclined-plane.This inclined-plane is at closing time, can be by means of the strength of closing the door, automatically with on the door lock, this is owing to the lock body that is fixed on the door, its its inclined-plane, termination of dead bolt that stretches out lock body interacts with the keeper top edge that is fixed on the doorframe, produces one and makes the pressure of dead bolt in lock body, after pressure has overcome the outside elastic force of dead bolt self, just dead bolt is pushed in the lock body, when closing to the doorstep, the elastic force by the lock body inner spring advances dead bolt in the endoporus of keeper, make on the automatic locking, because easy to use, price is easily suitable, is subjected to user's welcome, therefore, market is widely popular.

Yet, the pin tumbler lock of this single dead bolt, the weak point that it is also arranged, most importantly when inwardly opening, uses at door this lock, in the crack between a door and its frame from the outside, directly disclose its dead bolt with hard sheet metal, will on dead bolt, produce a kind of similar the same effect of dead bolt that inwardly pushes away at closing time, make the pressure of dead bolt generation in lock body, at last dead bolt is advanced in the lock body, and door is opened, except, with this single dead bolt pin tumbler lock, when exerting oneself fierce striking door, because the effect of bounce also can produce result same as described above, door is opened.The way that addresses this problem at present, normally adopt outward opening door or close the door after with key door " is locked ", perhaps adopt the door lock of double lock tongue, and the door lock of double lock tongue, two one in dead bolt termination faces that stretch out the lock body outside are the inclined-planes, one is the plane.When the people is in, generally can be without the plane dead bolt, only use the inclined-plane dead bolt, and with in the tack dead bolt propelling lock body need not, when the people is away from home, can adopt the tack dead bolt simultaneously, with key door " is locked ".This double lock tongue formula pin tumbler lock, price is more expensive, and, the same with single dead bolt pin tumbler lock, when people leave home far to walk, owing to forget that the pass needs door " to be locked " with key behind the door again, and the thing of generation robbery accident happens occasionally.

The purpose of this utility model is exactly in order to solve, when using single dead bolt pin tumbler lock that door is shut automatically, not need to carry out what is called " counter-locking a door " with key again, the phenomenon of unblanking tongue and door being rushed open can taking place to be disclosed yet.When people leave home far to walk, needn't worry whether to have forgotten behind the door on the card " locking " door.

In order to address the above problem, the utility model is improved on the basis of original single dead bolt pin tumbler lock, and proposes technical solution of the present utility model.

Basic design of the present utility model is, with single dead bolt pin tumbler lock, its dead bolt stretches out the termination of lock body part, changes the plane into by original inclined-plane, and keeper top changes the inclined-plane into by original plane, and the sliding type between dead bolt and the keeper still remains unchanged.Only the inclined-plane is different with the relative position relation on plane.

A kind of inclined-plane snap close boxlike pin tumbler lock provided by the utility model with inside and outside insurance, mainly formed by toggle mechanism, transmission mechanism and keeper ［ 1 ］ in dead bolt ［ 3 ］, lock body ［ 4 ］, the lock body, it is characterized in that, the termination that dead bolt ［ 3 ］ stretches out lock body ［ 4 ］ one ends, be designed to plane or cambered surface, be generally the plane, keeper ［ 1 ］ top is provided with the inclined-plane ［ 2 ］ from the α angle to keeper mouth direction or the cambered surface ［ 7 ］ that tilt to have.It is further characterized in that inclined-plane ［ 2 ］ inclination alpha on keeper ［ 1 ］ top is 25 °～65 °, and optimum value is 45 °; The inclined-plane ［ 2 ］ of keeper ［ 1 ］ or cambered surface ［ 7 ］ length should guarantee that at closing time inclined-plane ［ 2 ］ or cambered surface ［ 7 ］ can be in contact with one another with dead bolt ［ 3 ］.

The utility model has the advantages that: 1. keep the prior art in the lock body ［ 4 ］, just termination shape and the keeper ［ 1 ］ to dead bolt ［ 3 ］ improves a little, the saving fund, the convenient making, 2. needn't carry out " locking " door with key at closing time, promptly the side makes and safety, can not take place just in case the eventuality event.

Description of drawings of the present utility model is as follows:

Fig. 1 is to use the single dead bolt pin tumbler lock of the prior art process schematic diagram of closing the door.Dead bolt ［ 3 ］ contacts with keeper ［ 1 ］ top, and dead bolt ［ 3 ］ is produced thrust.Among the figure, keeper ［ 1 ］ is fixed on the doorframe ［ 6 ］, and lock body ［ 4 ］ is fixed on the door-plate ［ 5 ］.

Fig. 2 finishes the process of Fig. 1 and shuts behind the door schematic diagram.At this moment, dead bolt ［ 3 ］ is bounce back into the position of originally stretching out lock body by the spring in the lock body ［ 4 ］ again, and enters in the keeper ［ 1 ］, and doorframe ［ 6 ］ is in same plan-position with door-plate ［ 5 ］.

Fig. 3 is the utility model designed scheme process schematic diagram of closing the door.Be installed in the keeper ［ 1 ］ on the doorframe ［ 6 ］, its top is provided with the inclined-plane ［ 2 ］ of α with angle, and this inclined-plane contacts with the termination of the tack dead bolt of stretching from lock body ［ 4 ］ lining that is fixed on the door-plate ［ 5 ］［ 3 ］.Dead bolt ［ 3 ］ is along with the carrying out of the process of closing the door, and slides to keeper mouth direction along the inclined-plane ［ 2 ］ of the inclined angle alpha on keeper ［ 1 ］ top, and dead bolt ［ 3 ］ is produced the thrust in lock body ［ 4 ］.When dead bolt ［ 3 ］ on the inclined-plane ［ 2 ］ of keeper when having slided from top to bottom, door has also just been shut, at this moment, dead bolt ［ 3 ］ will enter in the cavity of keeper, on door lock under the reaction of the spring in the lock body ［ 4 ］.

Fig. 4 is the another kind of embodiment provided by the utility model process schematic diagram of closing the door.Its symbol is with the symbol among Fig. 3, and different is with the inclined-plane among Fig. 3 ［ 2 ］, is designed to arcwall face ［ 7 ］ here.

Fig. 5 is another embodiment schematic diagram of the utility model.Its symbol is with the symbol among Fig. 4, different is, dead bolt ［ 3 ］ stretch out lock body ［ 4 ］ though its termination of part be that chamfered portion is arranged, very approximate prior art, but it is with the difference of prior art, the part of stretching out lock body ［ 4 ］ outside is near that section of lock body ［ 4 ］, is not inclined-plane but plane.This structure can make is closing behind the door, and the chamfered portion of dead bolt termination advances in the keeper fully, and the part corresponding with crack between a door and its frame is the plane.This just can prevent from from crack between a door and its frame dead bolt to be disclosed out.But keeper ［ 1 ］ remains the structure that has inclined-plane ［ 2 ］ or cambered surface ［ 7 ］.

Fig. 6 is that the utility model is used for being in the schematic diagram under the situation of closing the door when outward opening door.At this moment, be located at the keeper ［ 1 ］ of doorframe inboard, the inclined-plane above it ［ 2 ］ are designed in by (with inward time antithesis) beyond the doorframe ［ 6 ］, and this inclined-plane equally also can make cambered surface.Other symbols are all with the symbol among Fig. 3.

The all same prior art of the utility model installation and application, different is exactly close the door after, as long as dead bolt enters in the keeper, promptly play safety effect, needn't remove to carry out " locking " door again.

The utility model embodiment is as follows:

The family expenses door lock adopts the inclined-plane snap close boxlike pin tumbler lock of the inside and outside insurance of band, stretch out the outer dead bolt ［ 3 ］ of lock body ［ 4 ］, the length of its extension is 15mm, and the termination is the plane, its keeper ［ 1 ］ top is to the inclined-plane ［ 2 ］ of keeper mouth place's inclination 45, and the height on inclined-plane is 16mm.Other all same prior arts.Be installed on the indoor door that opens the door.The all same prior art of other preparation methods of this door lock and mounting method.

Claims

1, a kind of inclined-plane snap close boxlike pin tumbler lock with inside and outside insurance, mainly formed by toggle mechanism, transmission mechanism and keeper [1] in dead bolt [3], lock body [4], the lock body, it is characterized in that: the termination that dead bolt [3] stretches out lock body [4] is designed to plane or cambered surface, and keeper [1] top is provided with the inclined-plane [2] from the α angle to the keeper opening direction or the cambered surface [7] that tilt to have.

2, a kind of inclined-plane snap close boxlike pin tumbler lock with inside and outside insurance according to claim 1 is characterized in that inclined-plane ［ 2 ］ inclination alpha on keeper ［ 1 ］ top is 25 °～65 °, and optimum value is 45 °.

3, a kind of inclined-plane snap close boxlike pin tumbler lock according to claim 1 and 2 with inside and outside insurance, it is characterized in that, the inclined-plane ［ 2 ］ of keeper ［ 1 ］ or cambered surface ［ 7 ］ length should guarantee that at closing time inclined-plane ［ 2 ］ or cambered surface ［ 7 ］ can be in contact with one another with dead bolt ［ 3 ］.