CN2647999Y

CN2647999Y - Card type anti-theft lock

Info

Publication number: CN2647999Y
Application number: CN 03273754
Authority: CN
Inventors: 尹学勤
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-08-21
Filing date: 2003-08-21
Publication date: 2004-10-13
Anticipated expiration: 2013-08-21

Abstract

A card-typed anti-theft lock includes: a lock body, a U-shaped lock hook and a lock key, the utility model is characterized in that: the lock body is internally provided with a lock core which is composed of a plurality of movable cards which are crossly stacked and provided with insert holes, a motionless gasket and a lower layer gasket, one sides of all the movable cards and the motionless gasket are provided with insert gaps for a lock rod, one sides at the insert holes of all the movable cards are provided with inner clamps; the end part of the lock rod of the U-shaped lock hook is provided with a plurality of channels of grooves which are corresponding to the stacked movable cards of the lock core; the lock key is composed of a column body which is provided with a carry sword groove and picks which are arranged at both sides of the column body, and the pick which is arranged at one side of the lock key is provided with a key distance. The utility model makes use of the fitting logarithm of a plurality of cards and the grooves which are arranged on the lock rod of the U-shaped lock hook by increasing a lock tongue on the lock core and the lock rod of the U-shaped lock hook, so as to lead the U-shaped lock hook which is inserted into the lock body have a plurality of channels of lock buckles to prevent the withdrawal. The utility model increases the difficulty to open the lock, thus achieving the anti-theft and safety performances of the lock. The design proposal is also applicable to other locks of mechanical structure.

Description

The card form theftproof lock

Technical field

The improvement of the lock construction that the utility model relates to, especially a kind of card form theftproof lock.

Technical background

At present, the theftproof lock of various structures is a lot of on the market, they are made up of lock body that is provided with lock core and U-shaped latch hook usually, the one side straight-bar activity of U-shaped latch hook is plugged on the lock core and can slides up and down and rotate, and U-shaped latch hook opposite side is a locking bar, and the locking bar end is provided with a groove that can cooperate with the lock core dead bolt, after the locking bar of U-shaped latch hook inserts lock body, the dead bolt of lock core promptly can embed the groove of locking bar, stops the U-shaped latch hook to withdraw from, and realizes the function of its lock.Existing homogeneous structure lock is owing to the common groove that the dead bolt embedding that supplies lock core together only is set on its locking bar, as long as the unprincipled fellow manages one dead bolt scratched out, just lock can be opened, its safe antitheft is relatively poor relatively.

Summary of the invention

The purpose of this utility model is the deficiency that exists at the said structure theftproof lock, provides a kind of safe antitheft to open the better card form theftproof lock of performance.

Card form theftproof lock of the present utility model, comprise: lock body, U-shaped latch hook and key, it is characterized in that: be provided with one in the lock body and intersect the active card stack, the lock core that constitutes of mobile gasket and lower floor's pad not by polylith, described active card, mobile gasket and lower floor's pad are not equipped with the jack that inserts for key, each active card and not mobile gasket one side be equipped with locking bar and insert breach, each active card jack one side is equipped with the interior bail that can cooperate with key carry sword groove, and mobile gasket one side is not equipped with the card article that is used for its location; The active card that the locking bar end of U-shaped latch hook stacks corresponding to lock core is offered the multiple tracks groove; Described key is made of cylinder and the plectrum that is arranged on the cylinder both sides, and key one side plectrum is provided with a spoon distance.

The design principle of the utility model card form theftproof lock is: the locking bar upper groove by utilizing polylith active card and U-shaped latch hook on the locking bar that increases lock core upper lock tongue and U-shaped latch hook cooperate logarithm, the snap close that makes the U-shaped latch hook of insertion lock body have multiple tracks to stop it to withdraw from.To increase the unlatching difficulty of lock, reach the anti-pirate of the open and the security performance of lock.

The utility model card form theftproof lock design science, simple and reasonable for structure, low cost of manufacture, and safe antitheft is good, owing to adopt the cooperating of groove of multiple tracks dead bolt and U-shaped latch hook, the key of institute's adapted is corresponding to be required highly, even omnipotent key is equally at a loss what to do, has really reached a designing requirement that key is left a lock.The design scheme of the utility model also is applicable to other frame for movement lock.

The concrete structure of the utility model card form theftproof lock is provided in detail by the following drawings and embodiment.

Description of drawings

Fig. 1 is a card form anti-theft lock structure schematic diagram;

Fig. 2 is the active card structural representation of card form theftproof lock shown in Figure 1;

Fig. 3 is the motionless gasket construction schematic diagram of card form theftproof lock shown in Figure 1;

Fig. 4 is the adapted key structural representation of card form theftproof lock shown in Figure 1;

Fig. 5 is a lock core schematic diagram under the card form theftproof lock opening shown in Figure 1;

Fig. 6 is a lock core schematic diagram under the card form theftproof lock locking states shown in Figure 1.

Concrete truth mode

Embodiment: can be clear that from Fig. 1 the card form theftproof lock is made up of lock body 1, U-shaped latch hook 2, lock core 3 and key 4.Described lock body 1 is similar to the lock body of standard machinery lock, parallelly on the lock body 1 offers two deep holes 10,11 that insert for 2 liang of locking bars of U-shaped latch hook, and deep hole 10 is close to and is provided with lock core installation cavity 12 in the lock body 1.Described lock core 3 is a column, by polylith intersect the active card 30 stack, mobile gasket 31 and lower floor's pad 32 do not constitute, active card 30, mobile gasket 31 and lower floor's pad 32 are not equipped with the jack 301,311,321 that inserts for key, each active card 30 and not mobile gasket 31 1 sides be equipped with locking bar 21 and insert breach 302,312 (seeing Fig. 2,3), jack 301 1 sides of each active card 30 are equipped with the interior bail 303 that can cooperate with key 4 carry sword grooves, and mobile gasket 31 1 sides are not equipped with the card article 313 that is used for its location; Multiple tracks groove 22 is offered corresponding to the active card 301 that lock core 3 stacks in locking bar 21 ends of U-shaped latch hook 2; Described key 4 constitutes (see figure 4) by cylinder 40 and the plectrum 41 that is arranged on the cylinder both sides, and cylinder 40 surfaces of key 4 offer carry sword groove 42 one, and key 4 one side plectrums 41 are provided with spoon apart from 43.Lock core 3 is installed in the lock core installation cavity 12 of lock body 1, and by wedge nail 5 and cooperating of lower floor pad 32 lock core 3 being fixed on the lock body 1.Described U-shaped latch hook 2 and lock body 1 cooperate installation and standard machinery phase-locked with.

The operating principle of the utility model card form theftproof lock: when bail 303 within the active card 30 of carry sword groove 42 on the key 4 and lock core 3 mutually one to the time, key 4 can insert from the jack 321 of the lock core 3 of lock body 1 bottom, when the spoon of the plectrum 41 of key 4 is corresponding with active card 30 arrangements of lock core 3 apart from 43, the key 4 that inserts must rotate in the jack of lock core 3, stir active card 30 in the lock core 3 by the plectrum on the key 4 41, when the breach 312 of the breach 302 of the active card 30 of lock core 3 and mobile gasket 31 not is consistent, when none active card 30 embeds the groove 22 of locking bar 21 of U-shaped latch hooks 2, the card form theftproof lock just is in the opening (see figure 5), and the locking bar 21 of U-shaped latch hook 2 can withdraw from from the deep hole 10 of lock body 1 at this moment; When the breach 302 of the active card 30 of lock core 3 with when the breach 312 of mobile gasket 31 is not inconsistent, there is piecemeal activity card 30 to embed the groove 22 of the locking bar 21 of U-shaped latch hook 2, the active card 30 that embeds the groove 22 of locking bar 21 will stop U-shaped latch hook 2 to withdraw from from the deep hole 10 of lock body 1, and this moment, the card form theftproof lock just was in the opening (see figure 6).

Claims

A kind of card form theftproof lock, comprise: lock body, U-shaped latch hook and key, it is characterized in that: be provided with one in the lock body and intersect the active card stack, the lock core that constitutes of mobile gasket and lower floor's pad not by polylith, described active card, mobile gasket and lower floor's pad are not equipped with the jack that inserts for key, each active card and not mobile gasket one side be equipped with locking bar and insert breach, each active card jack one side is equipped with the interior bail that can cooperate with key carry sword groove, and mobile gasket one side is not equipped with the card article that is used for its location; The active card that the locking bar end of U-shaped latch hook stacks corresponding to lock core is offered the multiple tracks groove; Described key is made of cylinder and the plectrum that is arranged on the cylinder both sides, and key one side plectrum is provided with a spoon distance.