CN201235871Y

CN201235871Y - Security device of lock

Info

Publication number: CN201235871Y
Application number: CNU2008201504551U
Authority: CN
Inventors: 倪伯承
Original assignee: SHANGHAI BAISHUN LOCK INDUSTRY Co Ltd
Current assignee: SHANGHAI BAISHUN LOCK INDUSTRY Co Ltd
Priority date: 2008-07-02
Filing date: 2008-07-02
Publication date: 2009-05-13
Anticipated expiration: 2018-07-02

Abstract

The utility model provides a safety device of a lock, which is an improvement for the prior safety device of the lock. The safety device comprises a lock body, a lock core, a locking dog, a key, a handle, a safety rod and a spring, wherein the handle is connected with the safety rod into a whole, the safety rod is provided with a locking piece, a nick is arranged on the lock core, and the locking piece is matched with the nick; when the lock is in the unlocking state, the locking piece enters the nick of the lock core due to the action of the spring, and the nick of the lock core can be arranged at the front end of the lock core or on a baffle block of the lock core at the tail end of the lock core. The safety device is very simple, and can be operated by one hand; only after the handle is pressed down and the locking piece on the safety rod leaves from the nick on the lock core, the key can be pulled, thereby the danger of self locking caused by vibration when the vehicle runs because the key is forgotten to be pulled out is avoided. The utility model is suitable for various locksets of bicycles, motor bicycles and motorcycles.

Description

A kind of safety device of lock

Technical field

The utility model relates to a kind of lock, relates more specifically to a kind of safety device of lock.

Background technology

Japanese Patent JP11-5576, JP2001-30967A disclose a kind of identical Lenkradschlossvorrichtung.With the JP11-5576 patent is example, in Fig. 4,19,20, handle 27 is connected as a single entity with tapered end safe block 28a, handle 27 and spring 26 returns of tapered end safe block 28a by setting, have oblong aperture 4b2 on the lock bottom plate, handle 27, tapered end safe block 28a are moving up and down in oblong aperture 4b2 under the effect of spring 26, have hole 24 on the lock core 6, and 28b is complementary with the tapered end safe block.Because tapered end safe block 28b withstands lock core 6 under spring 26 effects, make lockhole 4a and lock core 6 under spring 26 effects, produce distortion, influenced the plug of key.

Japanese Patent JP2003-63468A discloses the essentially identical Lenkradschlossvorrichtung of a kind of structure, from its patent Fig. 2, comprise and implement to see in the product, just between lock core urceolus portion 30 and dead bolt 13, be provided with a support 33, tapered end safe block 37 ecto-entads enter the inboard of support 33 from the low side of support 33, thereby hook support 33, but have a bigger slot on the lock bottom plate of this lock.

Above-mentioned Japanese three patents cause on the lock bottom plate oblong aperture also corresponding bigger because tapered end safe block volume is bigger, and also handy two hands just can be finished during locking, and structure is very complicated, use inconvenience, and lock and very easily prized the effect that out of reach is desirable.

2004100664935 steering locks of my application are though structurally improve to some extent one-handed performance, but near dead bolt, be provided with support, have a breach on the support, still can produce dangerous possibility, the optimal effect of out of reach in case support and dead bolt or support and lock core break away from.

200720073831.7 brake disc locks of my application are provided with safe mouthful on screw-casing, have the hole in the lock body, are provided with safe block in the hole, establish button on the safe block, and safe block is a recess shape, and screw-casing moves in recess.Will be with two manual manipulations during locking, complex structure not only, and use inconvenience, the still desirable effect of out of reach.

Summary of the invention

The purpose of this utility model is to design a kind of safety device of lock, and not only open and close is locked the energy one-handed performance, and structure is very simple.The utility model comprises lock body, lock core, dead bolt, key, handle, safety rod, spring, handle and safety rod are connected as a single entity, have a breach on the lock core, side on the lock body around lock core hole has the safety rod hole, safety rod, spring place in the safety rod hole, safety rod is provided with lock dog, and the breach on lock dog and the lock core is complementary, and handle places the next door of key hole.

The utility model is not only because handle places the next door of key hole, insert key and get final product driving handle, one hand can make the safety rod lock dog break away from breach on the lock core and the open and close lock, and it is simple in structure, easy to manufacture, use very convenient, overcome prior art because of complex structure, manufacture difficulty height, use the defective of inconvenience, pick-proof poor performance.The utility model is applicable on bicycle, mini-motorcycle, the motor bike and uses.

Description of drawings

Fig. 1 has a breach, the structural representation of lock dog under opening on the safety rod on the utility model lock core end of stroke.

Fig. 2 enters structural representation when having a breach on the lock core end of stroke for lock dog on the utility model tapered end safety rod.

Fig. 3 has a breach for the utility model lock core front end, and lock dog is at the structural representation of opening on the safety rod.

Structural representation when Fig. 4 has a breach for lock dog on the utility model safety rod enters the lock core front end.

The specific embodiment

Embodiment 1 (seeing Fig. 1,2): the safety device of a kind of lock of the utility model, comprise lock body 1, lock core 2, dead bolt 3, spring 4, key 5, handle 6, safety rod 7, handle 6 is connected as a single entity with safety rod 7, safety rod 7 is provided with lock dog 8, have a breach 10 on the lock core 2 front end blocks 9, lock body 1 has hole 11, hole 11 built-in lock cores 2, side around the lock core 2 has the safety rod hole 12 with lock core hole 11 equidirectionals, safety rod 7, spring 4 place in the safety rod hole 12, and breach 10 is complementary on lock dog 8 and the lock core 2 front end blocks 9.During locking, insert key 5, hand at first withstands handle 6 when pulling key 5, safety rod 7 is moved inward, and spring 4 compressions when lock dog 8 leaves on the lock core 2 front end blocks 9 breach 10 on the safety rod 7, just can be pulled key 5; When unblanking, inserting key 5 pulls, lock dog 8 on the safety rod 7, under the effect of spring 4 returns, be close to lock core 2 front ends, when lock core 2 rotates on the safety rods 7 lock dog 8 when entering on the lock core 2 front end blocks 9 breach 10, safety rod 7, lock dog 8 are under the effect of spring 4, and the lock dog 8 on the safety rod 7 enters in the breach 10 that lock core 2 front end blocks 9 are provided with automatically.

Embodiment 2 (seeing Fig. 2,3): the safety device of a kind of lock of the utility model, comprise lock body 1, lock core 2, dead bolt 3, spring 4, key 5, handle 6, safety rod 7, handle 6 is connected as a single entity with safety rod 7, safety rod 7 is provided with lock dog 8, have a breach 10 on lock core 2 ends, lock body 1 has hole 11, hole 11 built-in lock cores 2, side around the lock core 2 has the safety rod hole 12 with lock core hole 11 equidirectionals, safety rod 7, spring 4 place in the safety rod hole 12, and lock dog 8 is complementary with lock core 2 terminal breach 10.During locking, insert key 5, hand at first withstands handle 6 when pulling key 5, safety rod 7 is moved inward, spring 4 compressions, and lock dog 8 leaves when lock core 2 is terminal goes up breach 10 on the safety rod 7, just can pull key 5; When unblanking, inserting key 5 pulls, lock dog 8 on the safety rod 7, under the effect of spring 4 returns, be close to lock core 2 front ends, when lock core 2 rotates on the safety rods 7 lock dog 8 when entering the terminal breach 10 of lock core 2, safety rod 7, lock dog 8 are under the effect of spring 4, and the lock dog 8 on the safety rod 7 enters in the breach 10 that lock core 2 ends are provided with automatically.

Claims

1, a kind of safety device of lock, comprise lock body, lock core, dead bolt, spring, handle, key, safety rod, handle and safety rod are connected as a single entity, it is characterized in that the side around lock core hole has the safety rod hole on the lock body, safety rod, spring place in the safety rod hole, have a breach on the lock core, safety rod is provided with lock dog, and breach is complementary on lock dog and the lock core.

2, according to the safety device of the described a kind of lock of claim 1, it is characterized in that the side around lock core hole has the safety rod hole on the lock body, safety rod hole and lock core placement hole are same direction.

3, according to the safety device of claim 1 or 2 described a kind of locks, it is characterized in that having a breach on the lock core front end block, breach and lock dog are complementary.

4, according to the safety device of claim 1 or 2 described a kind of locks, it is characterized in that having a breach on the lock core end, breach and lock dog are complementary.