CN102817511A

CN102817511A - Anti-theft lock

Info

Publication number: CN102817511A
Application number: CN 201110155790
Authority: CN
Inventors: 韩润喜
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-06-10
Filing date: 2011-06-10
Publication date: 2012-12-12

Abstract

The invention discloses an anti-theft lock and relates to the technical field of lock manufacture. The anti-theft lock comprises a lock pin, a lock core and two symmetrically distributed lock hooks, wherein the lock pin is arranged in a triangular mode, the two lock hooks are respectively arranged in inwards opposite mode, a tension spring is arranged between the two lock hooks, two ends of the tension spring are respectively connected onto the two lock hooks, the lock core is distributed between the two lock hooks, the inner end of the lock core is fixedly connected with a transmission rod, two ends of the transmission rod respectively butt against the two lock hooks, the lock pin is distributed between the two lock hooks in matching mode, threads are arranged on the lateral wall on the outer part of the lock core, a key is in thread connection with the upper portion of the lock core, a lock ring is arranged on the periphery of the lock core, and the key is distributed between the lock ring and the lock core. The anti-theft lock is simple in structure, convenient to use, easy to produce and manufacture, good in anti-theft effect and capable of being widely used in industrial doors of distribution boxes of street lamp posts, plants and the like.

Description

Theftproof lock

Technical field

The present invention 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 present invention relates to theftproof lock, purpose is to solve existing lamp stand theftproof lock, anti-theft effect defect of bad.

The present invention includes the latch hook of lock pin, lock core, two symmetric arrangement, 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; 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; At least two position-limitting pins are set between said two latch hooks; Said position-limitting pin is by counterclockwise cooperating a side that is arranged in said drive link, and the outer end of said lock core is an arcwall face, and said lock core outer end is lower than the lock ring outer end.

Corresponding component were installed on doorframe or the door-plate between the present invention 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; It is that the drive link rotation is excessive when unblanking that this door lock is provided with position-limitting pin, and after the locking of conveniently closing the door, the taking off of Key, and position-limitting pin is fixed on the doorframe; It is in order to strengthen anti-theft effect, to avoid artificially adopting some instrument to unblank that the lock core outer end is arranged to arcwall face; The setting of lock core outer end is lower than the lock ring outer end, equally also is in order to strengthen anti-theft effect; 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 present invention 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 present invention;

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, and 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; 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; Said key is arranged between lock ring and the lock core, and at least two position-limitting pins are set between said two latch hooks, and said position-limitting pin is by counterclockwise cooperating a side that is arranged in said drive link; The outer end of said lock core is an arcwall face, and said lock core outer end is lower than the lock ring outer end.

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