CN102022025B

CN102022025B - Anti-theft door lock

Info

Publication number: CN102022025B
Application number: CN 200910152843
Authority: CN
Inventors: 徐刚炜
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-09-16
Filing date: 2009-09-16
Publication date: 2013-07-10
Anticipated expiration: 2029-09-16
Also published as: CN102022025A

Abstract

The invention discloses an anti-theft door lock, comprising a lock case, a lock core and a lock bracket. A diminishing segment is provided at the back end of the lock core, and a fastener is positioned at the end of the diminishing segment. Correspondingly, the inner back end of the lock case is provided with an opening matched with the fastener which is capable of rotating in the opening. An iron pin is longitudinally installed and fixed in a vertical hole in the lock case, and is directly or indirectly contacted and cooperated with the fastener at the end of the diminishing segment of the lock core. The lock core is in the inner side and is not exposed, so that the lock is not easy to pry up, achieving better anti-theft effect and preventing rainwater from entering in the lock to cause rust. A locking mechanism is simple and firm. The production process is simple, and the lock is more practical and convenient.

Description

Safe-guard door lock

Technical field

The present invention relates to a kind of door lock, relate in particular to the door lock of anti-theft and waterproof.

Background technology

Be locked in the daily life and used widely, the structure of common lock such as the patent No. are the structure that 03279862.8 Chinese patent discloses a kind of lock, it mainly is to be provided with a top base, one bottom base, one lock core, one stopper, one dead bolt, one movable bolt, members such as one upper shell and a lower house are formed, key is inserted in the key hole of lock core and turn, the drive stopper rotates, the catching groove of stopper is the annular groove of disengaging activity bolt then, and make spring be the elastic stretching state, the catching groove of stopper is no longer detained and is held movable bolt, movable bolt can be extracted out in the movable bolt jack of top base, cable wire is around on the article of desire locking, again movable bolt is worn in the engine interpolating hole of the movable bolt jack of top base and bottom base, stopper then is subjected to the elastic recovery of spring to draw cycle to original position it, the catching groove of stopper is held in the annular groove of movable bolt, with the firm snap close of movable bolt in lock body.Utilize the elasticity of spring to produce reset force, the time has been grown the spring easy deformation, makes that the application life of lock is not long; Do not have lock housing on the lock core, the thief injects with steel bar and can stir the core of unblanking, and also enters rainwater easily and gets rusty, and hidden effect is bad.

Summary of the invention

Technical problem to be solved by this invention provides a kind of safe-guard door lock, and the lockhole of lock is hidden in the inboard of lock housing, and hidden performance is good, better plays antitheft effect, and locking mechanism is simple and easy to install and produces.

The present invention solves the problems of the technologies described above the technical scheme that adopts: a kind of safe-guard door lock, comprise lock housing, lock core, lock, and lock core is rotatably installed in the lock housing, it is characterized in that:

The rear end of described lock core is provided with a undergauge section, and the end of undergauge section forms a buckle;

Accordingly, the lock housing bottom surface have for the lockhole on the lock hide into containing cavity, the rear portion of containing cavity forms the perforate that matches with buckle, and the buckle of the rear end of lock core can be inserted in the perforate, and can rotate in perforate;

Have an iron pin in the perforate at least and be clasped.

As improvement, rectangle or ellipse are arranged in the cross section of described buckle.

As improvement, vertical the fastening in the front portion of described lock housing has a location screw surely, cooperates with the stopper slot guiding of plug face.

As improvement, described lock is involuted by left and right sides lock and is fixedly mounted on the buckle of the left and right sides, and buckle inside edge, the left and right sides respectively forms fixed head, and the lockhole that cooperates with lock core is set on the fixed head.

As improvement, described lock housing is placed in the lock, and fixed head is set in the containing cavity of lock housing.

As improvement, the lock core hole of described lock housing front end side is provided with a block that blocks lock core, and the elastic webbing on the block is fixed on the lock housing by screw.

At last, described iron pin is preferably two, is distributed in the left and right sides in the perforate symmetrically.

Compared with prior art, the invention has the advantages that: built-in lock pin is side in lock housing, and the hidden performance of the lockhole of lock is good, plays better anti-theft and waterproof effect; The undergauge section of lock core is conflicted indirectly or directly to cooperate to play with the iron pin in the lock housing and is opened and locking, and locking mechanism is simply firm; The lock core hole of lock housing front end side is equipped with the plastics block, prevents that rainwater from entering the corrosion lock core; And cover lock core, hidden performance is better; Production technology is simple, and is safe and reliable, and practicality is better.

Description of drawings

Fig. 1 is sectional view of the present invention;

Fig. 2 is STRUCTURE DECOMPOSITION figure of the present invention;

Fig. 3 is lock schematic diagram of the present invention;

Fig. 4 is scheme of installation of the present invention.

The specific embodiment

Describe in further detail below in conjunction with the present invention of accompanying drawing embodiment.

As shown in Figure 1, 2, 3: a kind of anti-theft and waterproof door lock, comprise lock housing 9, lock core 1, lock 12, lock core 1 is rotatably installed in the lock housing 9, described lock 12 is involuted by left and right sides lock, be molded over and make it become an integral body on the left and right sides buckle 10, the inside edge of left and right sides buckle 10 respectively forms a fixed head 11, has the lockhole 11.1 that matches with lock core 1 on the fixed head 11, and left and right sides buckle 10 is fixed on the door by connector; Lock housing 9 bottom surfaces have a containing cavity 9.1, and lock housing 9 is placed in the lock 12, and fixed head 11 is built in the lock housing 9, and lockhole 11.1 is hidden in the containing cavity 9.1 in the lock housing 9; Lock housing 9 upper foreparts have a screwed hole 8, one location screw 7 is screwed in the screwed hole 8, cooperate with stopper slot 1.3 guiding on lock core 1 surface, when key injects lock core 1 and revolves when turning 90 degrees, the latch of key cooperates with the internal tooth of lock core 1, make its key can not extract lock core 1, the pulling key drives lock core 1 and outwards pulls out together, make it block lock core 1 up to stopper slot 1.3 rear ends and dog screw 7 direct conflicts, its lock core 1 can not be drawn out fully, when advancing lock core 1, dog screw 7 is conflicted with the front end of the stopper slot 1.3 of lock core 1 match, lock core 1 can not advanced in the lock housing fully; The rear end of lock core 1 is provided with a undergauge section 1.2, the end of undergauge section 1.2 forms a buckle 1.1, what adopted in the cross section of buckle 1.1 is rectangle or ellipse, present embodiment is preferably rectangle, accordingly, lock housing 9 forms the perforate 2 that matches with buckle 1.1 at the rear portion of containing cavity 9.1, and what perforate 2 was adopted is circular port, buckle 1.1 can be inserted in the perforate 2, and buckle 1.1 can rotate in this perforate 2; The rear portion has symmetrical two vertical cores 3 in the lock housing 9, two iron pins 4 vertically are set in the vertical core 3 respectively and are built in the perforate 2, when door lock pins, the buckle 1.1 of lock core 1 is caught on by iron pin 4 in perforate 2, and lock core 1 can not be drawn out, when with key operated door lock, lock core 1 is 90 degree rotations in perforate 2, make buckle 1.1 break away from iron pin 4, pulling lock core 1; The lock core hole of lock housing 9 front end sides is provided with a block 6 that blocks lock core 1, there is an elastic webbing 6.1 rear end of block 6, elastic webbing 6.1 has a screw hole 6.2, by screw 6.3 block 6 is fixed on the lock housing 9, therefore lock core 1 can not expose, can prevent from getting rusty because rainwater enters, what block 6 adopted is that plastics are made, and also can not get rusty because of the erosion of rainwater.

Its operating principle: lock 12 is fixed on the door by buckle 10, scratched plastics block 6 with finger, with key rotary locking cylinder 190 degree, this moment, key can not be extracted lock core 1, easily extract lock core 1 with key, make lock core 1 screw 7 that is positioned block, cause lock core 1 not to be drawn out fully, and then put lock 12 into, advance lock core 1, and revolve and turn 90 degrees, the undergauge section 1.2 back buckles 1.1 of lock core 1 are blocked by iron pin 4, the inboards of the close door of lock core 1 whole plants this moment, and well play antitheft effect, buckle plastics block 6 again, can waterproof antirust.

Claims

1. a safe-guard door lock comprises lock housing, lock core, lock, and lock core is rotatably installed in the lock housing, it is characterized in that:

Accordingly, the lock housing bottom surface have for the lockhole on the lock hide into containing cavity, the rear portion of containing cavity forms the perforate that matches with buckle, and the buckle of the rear end of lock core is inserted in the perforate after passing lockhole, and can rotate in perforate;

Have an iron pin in the perforate at least and be clasped.

2. a kind of safe-guard door lock according to claim 1, it is characterized in that: rectangle or ellipse are arranged in the cross section of described buckle.

3. a kind of safe-guard door lock according to claim 1 is characterized in that: vertical the fastening in the front portion of described lock housing has a location screw surely, cooperates with the stopper slot guiding of plug face.

4. a kind of safe-guard door lock according to claim 1, it is characterized in that: described lock is involuted by left and right sides lock, is fixedly mounted on the buckle of the left and right sides, and buckle inside edge, the left and right sides respectively forms fixed head, and the lockhole that cooperates with lock core is set on the fixed head.

5. a kind of safe-guard door lock according to claim 1 is characterized in that: the lock core hole of described lock housing front end side is provided with a block that blocks lock core, and the elastic webbing on the block is fixed on the lock housing by screw.

6. a kind of safe-guard door lock according to claim 1, it is characterized in that: described iron pin is two, is distributed in the left and right sides in the perforate symmetrically.