CN202117435U

CN202117435U - Anti-theft lock

Info

Publication number: CN202117435U
Application number: CN2011201948291U
Authority: CN
Inventors: 韩润喜
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-06-10
Filing date: 2011-06-10
Publication date: 2012-01-18
Anticipated expiration: 2021-06-10

Abstract

The utility model discloses an anti-theft lock and relates to the technical field of manufacturing of locksets. The anti-theft lock comprises a lock pin, a lock cylinder and two symmetrically arranged lock hooks. The lock pin is arranged in a triangular shape. The two lock hooks are respectively and oppositely arranged inwards. A tension spring is arranged between the two lock hooks. Both ends of the tension spring are respectively connected on the two lock hooks. The lock cylinder is arranged between the two lock hooks. The inner end of the lock cylinder is fixedly connected with a drive rod. Both ends of the drive rod are respectively abutted against the two lock hooks. The lock pin is arranged between the lock hooks in a matched way. The side wall at the outer side of the lock cylinder is provided with screw threads. The upper part of the lock cylinder is in threaded connection with a key. The outer periphery of the lock cylinder is provided with a lock ring. The key is arranged between the lock ring and the lock cylinder. The door lock has a simple structure, is convenient to use, is easy to produce and manufacture, has a good anti-theft effect and can be widely used on industrial doors of a street lamp post distribution box, a plant and the like.

Description

A kind of theftproof lock

Technical field

The utility model relates to a kind of manufacturing technology field of lockset.

Background technology

The theftproof lock of switchbox is simple in structure on the transitional street lamps lamp stand, and it directly is made up of lock core and locking plate, and opening and closing all are rotary locking cylinders, and lock core drives the locking plate rotation, through realizing locking plate and cooperating of lamp stand wall; Also have the lamp stand antitheft directly to adopt common padlock to block, above-mentioned simple lock, the anti-theft effect that can not play, the antitheft that some are baroque, the lock of good anti-theft effect but is not suitable for street lamp post, and use cost is also higher.

Summary of the invention

The utility model relates to a kind of theftproof lock, and purpose is to solve existing lamp stand theftproof lock, anti-theft effect defect of bad.

The utility model comprises the latch hook of lock pin, lock core, two symmetric arrangement, and said lock pin is the triangle setting, and said two latch hooks difference is positioned opposite inwardly; Between said two latch hooks, extension spring is set; The two ends of said extension spring are connected on said two latch hooks, and said lock core is arranged between two latch hooks, and the inner of said lock core is fixedly connected a drive link; Conflict respectively on said two latch hooks in the two ends of said drive link; Said lock pin cooperates and is arranged between said two latch hooks, on the sidewall of the outside of said lock core, screw thread is set, and key is threaded on the top of lock core; Periphery at said lock core is provided with lock ring, and said key is arranged between lock ring and the lock core.

Corresponding component were installed on doorframe or the door-plate between the utility model needed earlier; Will; The lower end hinge of two latch hooks is connected on the doorframe inside wall, and lock pin is corresponding to be installed on the door-plate, and lock core also is installed in the installing hole on the doorframe; Through lock ring lock core is fixed on the doorframe, lock ring is through being bolted on the doorframe lateral wall; The opening and closing of this door lock all are to operate through the sleeve key that is provided with inside spin; Less because of the gap between lock ring and the lock core, promptly lockhole is smaller, so the sidewall of key is thinner; This lockhole seldom has instrument to put in, and has played good anti-theft effect like this; The unlatching of this door lock is through the clockwise direction screw key, and key drives lock core and rotates, and lock core drives drive link simultaneously and rotates; Dwang struts two latch hooks, and the latch hook after strutting loses spacing to lock pin, and door can be opened like this; Close the door when locking, only need to close to the doorstep, with lock pin by advancing between the latch hook; Spacing through latch hook, door is promptly locked; This door latch structure is simple, and is easy to use, manufacture easily, and good anti-theft effect, can be widely used on the industrial door such as street lamp post switchbox, factory building.

The utility model also comprises at least two position-limitting pins, and said position-limitting pin is by counterclockwise cooperating a side that is arranged in said drive link; It is excessive position-limitting pin is set is when unblanking the drive link rotation, and after the locking of conveniently closing the door, the taking off of Key, and position-limitting pin is fixed on the doorframe.

The outer end of the said lock core of the utility model is an arcwall face; Being arranged to arcwall face is in order to strengthen anti-theft effect, to avoid artificially adopting some instrument to unblank.

The said lock core outer end of the utility model is lower than the lock ring outer end; This set also is in order to strengthen anti-theft effect.

The utility model is hinged waterproof cover at the outer end of said lock ring, and waterproof cover plays the effect of dustproof and waterproof, prolongs the application life of lock.

Description of drawings

Fig. 1 is a kind of structural representation of the utility model;

Fig. 2 is that the A-A of Fig. 1 is to view.

Among the figure, 1, lock pin, 2, latch hook, 3, extension spring, 4, lock core, 5, drive link, 6, lock ring, 7, key, 8, doorframe, 9, door-plate, 10 waterproof covers, 11, position-limitting pin.

The specific embodiment

Like Fig. 1, shown in 2, this theftproof lock comprises the latch hook 2 of lock pin 1, lock core 4, two symmetric arrangement, and lock pin 1 is the triangle setting; Two latch hooks 2 are distinguished positioned opposite inwardly, and extension spring 3 is set between two latch hooks 2, and the two ends of extension spring 3 are connected on two latch hooks 2; Lock core 4 is arranged between two latch hooks 2, and the inner of lock core 4 is fixedly connected a drive link 5, conflicts respectively on two latch hooks 2 in the two ends of drive link 5; Lock pin 1 cooperates and is arranged between two latch hooks 2, on the sidewall of the outside of lock core 4, screw thread is set, and key 7 is threaded on the top of lock core 4; Periphery at lock core 4 is provided with lock ring 6, and key 7 is arranged between lock ring 6 and the lock core 4.The outer end of lock core 4 is an arcwall face, and lock core 4 outer ends are lower than lock ring 6 outer ends, is hinged waterproof cover 10 at the outer end of lock ring 6.

As shown in Figure 1, this theftproof lock also comprises at least two position-limitting pins 11, and position-limitting pin 11 is by counterclockwise cooperating a side that is arranged in said drive link.

Claims

1. theftproof lock is characterized in that comprising the latch hook of lock pin, lock core, two symmetric arrangement, and said lock pin is the triangle setting; Said two latch hooks difference is positioned opposite inwardly, between said two latch hooks, extension spring is set, and the two ends of said extension spring are connected on said two latch hooks; Said lock core is arranged between two latch hooks; The inner of said lock core is fixedly connected a drive link, conflicts respectively on said two latch hooks in the two ends of said drive link, and said lock pin cooperation is arranged between said two latch hooks; On the sidewall of the outside of said lock core, screw thread is set; The key that is threaded on the top of lock core is provided with lock ring in the periphery of said lock core, and said key is arranged between lock ring and the lock core.

2. a kind of theftproof lock according to claim 1 is characterized in that comprising at least two position-limitting pins, and said position-limitting pin is by counterclockwise cooperating a side that is arranged in said drive link.

3. a kind of theftproof lock according to claim 1, the outer end that it is characterized in that said lock core is an arcwall face.

4. a kind of theftproof lock according to claim 1 is characterized in that said lock core outer end is lower than the lock ring outer end.

5. a kind of theftproof lock according to claim 1 is characterized in that, is hinged waterproof cover at the outer end of said lock ring.