CN203684815U

CN203684815U - Self-locking mechanism

Info

Publication number: CN203684815U
Application number: CN201420017737.XU
Authority: CN
Inventors: 梅红辉
Original assignee: YONGKANG YIJIETE ELECTRONIC TECHNOLOGY Co Ltd
Current assignee: YONGKANG YIJIETE ELECTRONIC TECHNOLOGY Co Ltd
Priority date: 2014-01-11
Filing date: 2014-01-11
Publication date: 2014-07-02
Anticipated expiration: 2024-01-11

Abstract

The utility model discloses a self-locking mechanism which comprises a lock cover and a lock shell. A balanced limiting board is fixedly arranged in the lock shell, a lock pin board is fixedly arranged at one end above the balanced limiting board, one end of a reset spring is fixedly arranged on the balanced limiting board, and the other end of the reset spring is fixed to the lock shell. The self-locking mechanism further comprises a trigger needle and a trigger spring. The trigger needle abuts against the balanced limiting board. The self-locking mechanism is simple in structure but greatly increases the difficulty in the destructive unlocking process.

Description

A kind of self-locking mechanism

Technical field

The utility model belongs to theftproof lock technical field, relates in particular to a kind of theftproof lock self-locking mechanism.

Background technology

Existing theftproof lock is reaching a higher level aspect anti-technical unlocking, can meet to a certain extent most of users' security protection needs.

Its weak point is that existing theftproof lock also exists larger defect aspect anti-destructive unlatching, and generally, as long as pry open outdoor handle panel, lock body is just opened than being easier to, thereby needs to improve.

Utility model content

The purpose of this utility model is to provide a kind of self-locking mechanism, and it can solve the above-mentioned shortcoming that prior art exists.

The utility model is by the following technical solutions:

A kind of self-locking mechanism, it sets firmly on the lock body being formed by a locking closure and a lock housing, described lock housing inside is installed with a balance limiting plate, one end, described balance limiting plate top is installed with a lock bolt plate, one back-moving spring one end is fixedly arranged on described balance limiting plate, the other end is fixed on described lock housing guide finger, also comprise that a triggering pin and triggers spring, described triggering pin and described balance limiting plate connect, described triggering spring housing is located on described triggering pin, and described triggering both ends of the spring is spacing by described triggering pin and described locking closure respectively.

Described lock bolt plate is provided with two self-locking grooves.

Described triggering pin comprises a mounting head and a trigger head.

On described lock housing and locking closure, be provided with respectively a locking closure and trigger hole and lock housing triggering hole, the trigger head of described triggering pin triggers hole and is fixed in described lock housing through triggering spring, locking closure triggering hole and lock housing successively.

In described lock housing, be also provided with a guide finger, described back-moving spring is fixedly arranged on described guide finger.

On described balance limiting plate, be also provided with two spacer pins, described spacer pin is located at described self-locking grooves inside.

On described balance limiting plate, be also provided with a spring hanging groove, described back-moving spring one end hang on described spring hanging groove.

The utility model has the advantages that: simple in structurely but greatly increased destructive difficulty of unblanking.

Accompanying drawing explanation

Below in conjunction with embodiment and accompanying drawing, the utility model is elaborated, wherein:

Fig. 1 is the stereogram of the utility model internal construction;

Fig. 2 is the internal construction schematic diagram in locking state after the utility model is applied on lock body;

Fig. 3 is the lock body internal construction schematic diagram that has started self-locking office;

Fig. 4 is lock housing stereogram;

Fig. 5 is balance limiting plate stereogram;

Fig. 6 is lock bolt plate stereogram;

Fig. 7 is the lock body internal construction schematic diagram that does not use auto-lock function;

Fig. 8 is self-locking mechanism explosive view;

Fig. 9 is the secondary schematic diagram of locking bolt;

Figure 10 is structural representation of the present utility model.

The specific embodiment

Further set forth the specific embodiment of the present utility model below in conjunction with accompanying drawing:

As shown in Figures 1 to 10, a kind of self-locking mechanism, it sets firmly on the lock body being formed by a locking closure 8 and a lock housing 5, described lock housing inside is installed with a balance limiting plate 2, one end, described balance limiting plate top is installed with a lock bolt plate 4, one back-moving spring 3 one end are fixedly arranged on described balance limiting plate, the other end is fixed on described lock housing guide finger, also comprise that a triggering pin 1 and triggers spring 6, described triggering pin and described balance limiting plate connect, described triggering spring housing is located on described triggering pin, and described triggering both ends of the spring is spacing by described triggering pin and described locking closure respectively.

Described lock bolt plate is provided with two self-locking grooves 4-1,4-2.

Described triggering pin comprises a mounting head 1-1 and a trigger head 1-2.

On described lock housing and locking closure, be provided with respectively a locking closure and trigger hole and lock housing triggering hole 5-1, the trigger head of described triggering pin triggers hole and is fixed in described lock housing through triggering spring, locking closure triggering hole and lock housing successively.

On described balance limiting plate, be also provided with a spring hanging groove 2-3, described back-moving spring one end hang on described spring hanging groove.

Mounting method of the present utility model is as follows: first, the pilot hole 2-5 of balance limiting plate 2, pilot hole 2-4 be guide finger 5-5, the guide finger 5-4 of corresponding lock housing 5 respectively; Secondly, gathering sill 4-3, the self-locking grooves 4-1 of locking bolt pair, self-locking grooves 4-2 guide finger 5-4, spacer pin 2-1, the spacer pin 2-2 of balance limiting plate of corresponding lock housing respectively; The 3rd, stop screw 6 screws in the screw hole 5-2 of lock housing, as shown in Figure 7; The 4th, cover locking closure 7.

Operating principle of the present utility model is:

In the time that handle panel is installed, be pressed into after the triggering hole 5-3 of locking closure triggering hole 8-1 and lock housing through triggering spring triggering pin 1, screw out stop screw 6, then lock handle panel, as shown in Figure 2;

Now, if suffering destructiveness unblanks, the first step must first be destroyed handle, just there is the chance of opening lock body, will eject triggering pin but trigger spring while destroying handle, thereby cause lock body to realize self-locking, as shown in Figure 3, want to open the door and must further destroy lock body and secondary lock, the difficulty of opening the door significantly improves.

The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.

Claims

1. a self-locking mechanism, it sets firmly on the lock body being formed by a locking closure and a lock housing, it is characterized in that, described lock housing inside is installed with a balance limiting plate, one end, described balance limiting plate top is installed with a lock bolt plate, one back-moving spring one end is fixedly arranged on described balance limiting plate, the other end is fixed on a lock housing guide finger, also comprise that a triggering pin and triggers spring, described triggering pin and described balance limiting plate connect, described triggering spring housing is located on described triggering pin, and described triggering both ends of the spring is spacing by described triggering pin and described locking closure respectively.

2. self-locking mechanism according to claim 1, is characterized in that, described lock bolt plate is provided with two self-locking grooves.

3. self-locking mechanism according to claim 2, is characterized in that, described triggering pin comprises a mounting head and a trigger head.

4. self-locking mechanism according to claim 3, it is characterized in that, on described lock housing and locking closure, be respectively equipped with a locking closure and trigger hole and lock housing triggering hole, the trigger head of described triggering pin triggers hole and is fixed in described lock housing through triggering spring, locking closure triggering hole and lock housing successively.

5. self-locking mechanism according to claim 4, is characterized in that, is also provided with a guide finger in described lock housing, and described back-moving spring is fixedly arranged on described guide finger.

6. self-locking mechanism according to claim 5, is characterized in that, is also provided with two spacer pins on described balance limiting plate, and described spacer pin is located at described self-locking grooves inside.

7. self-locking mechanism according to claim 6, is characterized in that, is also provided with a spring hanging groove on described balance limiting plate, and described back-moving spring one end hang on described spring hanging groove.