CN203701736U

CN203701736U - Safety anti-theft lock with fixed lock cylinder

Info

Publication number: CN203701736U
Application number: CN201420078003.2U
Authority: CN
Inventors: 李金昌
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-02-24
Filing date: 2014-02-24
Publication date: 2014-07-09
Anticipated expiration: 2024-02-24

Abstract

The utility model discloses a safety anti-theft lock with a fixed lock cylinder. The safety anti-theft lock comprises a lock body, wherein the lock cylinder and a spring bolt are arranged on the lock body; a key insertion hole is formed in the middle of the lock cylinder; the outer end, in which the key insertion hole is formed, of the lock cylinder is fixedly connected to a lock body panel; the inner end of the lock cylinder is sleeved with a revolving drum; a locking mechanism which can be used for locking the rotation of the revolving drum is arranged between the revolving drum and the lock cylinder; linkage teeth meshed with a straight-tooth structure on the lower portion of the back end of the spring bolt are formed on the outer wall of the revolving drum; two stop levers are arranged at a certain interval on the upper portion of the back end of the spring bolt; a rotary handle is arranged on the lock body; a revolving shaft of the rotary handle is connected with a swinging arm; the swinging arm extends between the two stop levers of the spring bolt; the maximum driving force of the rotary handle for driving the swinging arm is greater than the resistance of the revolving drum in a free state and smaller than the resistance of the revolving drum locked by the locking mechanism. The safety anti-theft lock can be locked and unlocked without rotating the lock cylinder, thereby effectively preventing the lock cylinder from being damaged forcedly. The safety anti-theft lock has the characteristics of simple structure, convenience in use, prevention of deformation of a key high anti-theft performance.

Description

The safety anti-theft lock that a kind of lock core is motionless

Technical field

The utility model relates to a kind of safety anti-theft lock, is specially the motionless safety anti-theft lock of a kind of lock core.

Background technology

Existing safety mechanical theftproof lock is all unlatching and the locking that drives dead bolt in lock body with key rotation lock core, and the lock core in lock body easily by special tool deeply, utilizes the external force of turning round by force of instrument that the lock pin of lock core is broken, and has very large potential safety hazard.In addition, key through often deforming, even fractures after long-time rotation is used, and brings some inconvenience to actual use.

Utility model content

For the problems referred to above, the utility model has designed the motionless safety anti-theft lock of a kind of lock core, its locking and unlocking, without rotational lock core, can effectively prevent that lock core, by artificial shakedown, has feature simple in structure, easy to use, that key is indeformable, theftproof performance is strong.

For achieving the above object, the utility model is by the following technical solutions:

The safety anti-theft lock that a kind of lock core is motionless, comprise lock body, lock core and telescopic dead bolt are installed on lock body, the centre of lock core is provided with key hole, it is characterized in that: the outer end of described lock core band key hole is directly connected on lock panel, described lock core the inner is arranged with a rotating cylinder that can rotate relative to lock core, is provided with the locking mechanism that lockable rotating cylinder rotates between rotating cylinder and lock core, and the outer wall of rotating cylinder is provided with the interlock tooth being meshed with the straight-tooth structure of dead bolt rear end lower; Described dead bolt upper rear end is interval with two pins; On described lock body, be also provided with a swing handle, in the rotating shaft of swing handle, connect a swing arm, swing arm extend between two pins of described dead bolt, and swing handle drives the maximum driving force of swing arm to be greater than the resistance under rotating cylinder free state and to be less than the resistance that rotating cylinder is locked by locking mechanism.

Further, above-mentioned locking mechanism comprise some intercommunicating pores of being arranged on lock core sidewall and be arranged on rotating cylinder inwall with described intercommunicating pore pin-and-hole one to one, Compress Spring and lock pin are installed in each pin-and-hole, lock pin can enter in the lock core intercommunicating pore of correspondence position under the effect of Compress Spring restoring force, in each lock core intercommunicating pore, is provided with the lock holding mutually with described lock pin.

Further, between above-mentioned lock core bottom and rotating cylinder endoporus bottom, be provided with the second locking mechanism, this second locking mechanism comprise be arranged on the some intercommunicating pores on lock core bottom and be arranged on rotating cylinder endoporus bottom with described intercommunicating pore pin-and-hole one to one, Compress Spring and lock pin are installed in each pin-and-hole, lock pin can enter in the lock core intercommunicating pore of correspondence position under the effect of Compress Spring restoring force, in each lock core intercommunicating pore, is provided with the lock holding mutually with described lock pin.

Further, the rotating shaft of above-mentioned swing handle and the rotating shaft of swing arm are nested with on same locating shaft, and the link of two rotating shafts connects by sloped contact surface or arc contact surface, and the rotating shaft other end of swing arm holds mutually with a back-moving spring.

In use, in the time that dead bolt stretches out in locking state, in locking mechanism, the position of each pin-and-hole is just corresponding with the intercommunicating pore position on lock core, now, lock pin stretches out and enters into intercommunicating pore under the effect of Compress Spring restoring force, whole rotating cylinder is stuck and cannot rotate by lock pin, now rotate swing handle, in the time that contacting the rear lever of dead bolt, swing arm cannot rotate, along with the further rotation of swing handle, swing arm will be gradually move and further compression reseting spring and internal lock afterwards, swing handle rotating shaft is skidded with the sloped contact surface of arm pivoted two links of pendulum, whole swing handle is in idling conditions, can effectively stop to open by violent means the problem of theftproof lock, whole theftproof lock is in complete lock-out state.

In the time unblanking, insert key in the key hole of lock core, the protruding tooth of key moves outward and makes each lock pin depart from the intercommunicating pore of lock core completely promoting lock, now rotating cylinder is in free rotary state, now rotate swing handle, swing handle rotates Timing Belt movable pendulum arm and promotion dead bolt rear portion pin drive dead bolt retraction, and the retraction of dead bolt carries out unblanking of theftproof lock on the one hand, drive rotating cylinder to rotate by the straight-tooth structure of dead bolt bottom and the engaged transmission of rotating cylinder interlock tooth simultaneously, now the lock pin of locking mechanism holds at the outer wall of lock core and slides, this process until dead bolt inside contract completely realize unblank.

And need to again lock time, only need to counter-rotate turning handle, swing arm reversion promotes the anterior pin of dead bolt and drives dead bolt to stretch out, drive rotating cylinder to rotate backward by the straight-tooth structure of dead bolt bottom and the engaged transmission of rotating cylinder interlock tooth simultaneously, this process until dead bolt stretch out completely realize unblank, now the rotating cylinder pin-and-hole of locking mechanism and the intercommunicating pore of lock core are again corresponding, lock pin again enters in the intercommunicating pore of lock core under the effect of Compress Spring restoring force, rotating cylinder is locked, realizes locking of theftproof lock.

The whole process of unblanking above, only need to insert key and can unblank, and lock core is completely connected on fixed panel and does not rotate, and can effectively prevent that lock core from being rotated and destroying by artificial pressure, has feature simple in structure, easy to use, that key is indeformable, theftproof performance is strong.

Brief description of the drawings

Fig. 1, structural representation of the present utility model;

The structure sectional view of Fig. 2, the utility model locking mechanism;

The structure sectional view that Fig. 3, the utility model rotating handles are connected with swing arm.

Detailed description of the invention

As shown in Figure 1, the safety anti-theft lock that a kind of lock core is motionless, comprises lock body 1, and lock core 2 and telescopic dead bolt 3 are installed on lock body 1, and the centre of lock core 2 is provided with key hole 21.

Described lock core 2 outer ends are directly connected on lock panel 4, and described lock core 2 the inners are arranged with a rotating cylinder that can rotate relative to lock core 5, between rotating cylinder 5 and lock core 2, are provided with the locking mechanism that lockable rotating cylinder 5 rotates.

In the present embodiment, as shown in Figure 2, locking mechanism comprise the some intercommunicating pores 61 that are arranged on lock core 2 sidewalls and be arranged on rotating cylinder 5 inwalls with described intercommunicating pore pin-and-hole 62 one to one, Compress Spring 63 and lock pin 64 are installed in each pin-and-hole 62, lock pin 64 can enter in the lock core intercommunicating pore 61 of correspondence position under the effect of Compress Spring 63 restoring forces, is provided with the lock 65 holding mutually with described lock pin in each lock core intercommunicating pore 61.

At this, for further strengthening antitheft and locking effect, between described lock core bottom and rotating cylinder endoporus bottom, be provided with the second locking mechanism, this second locking mechanism comprise the some intercommunicating pores 71 that are arranged on lock core 2 bottoms and be arranged on rotating cylinder 5 endoporus bottoms with described intercommunicating pore pin-and-hole 72 one to one, Compress Spring 73 and lock pin 74 are installed in each pin-and-hole 72, lock pin 74 can enter in the lock core intercommunicating pore 71 of correspondence position under the effect of Compress Spring 73 restoring forces, is provided with the lock 75 that can hold mutually with described lock pin 74 in each lock core intercommunicating pore 71.

The outer wall of described rotating cylinder 5 is provided with the interlock tooth 51 that can be meshed with the straight-tooth structure 33 of dead bolt 3 rear end lower.

Described dead bolt 3 upper rear end are interval with two pins 31,32.

On described lock body 1, be also provided with a swing handle 8, in the rotating shaft 81 of swing handle 8, connect a swing arm 9, swing arm 9 extend between two pins 31,32 of described dead bolt, and swing handle 8 drives the maximum driving force of swing arm 9 to be greater than the resistance under rotating cylinder 5 free states and is less than the resistance that rotating cylinder 5 is locked by locking mechanism.In the present embodiment, the rotating shaft 81 of swing handle 8 and the rotating shaft 91 of swing arm 9 are nested with on same locating shaft 10, two rotating shafts 81, 91 link connects by sloped contact surface 811 or arc contact surface, rotating shaft 91 other ends of swing arm hold mutually with a back-moving spring 92, its structure as shown in Figure 3, in the time that being less than the frictional force of described sloped contact surface 811, the rotary resistance of swing arm 9 will rotate with swing handle 8, in the time that the rotary resistance of swing arm 9 is greater than the frictional force of described sloped contact surface 811, swing handle 8 skids relative sloped contact surface 811, and the rotating shaft 91 that simultaneously promotes swing arm inside contracts further compression reseting spring 92, now swing handle 8 is in idling conditions, can effectively stop the situation generation that violence is unblanked.

In use, in the time that dead bolt 3 stretches out in locking state, in locking mechanism, the position of each pin-and-hole 62 is just corresponding with intercommunicating pore 61 positions on lock core 2, now, lock pin 64 stretches out and enters into intercommunicating pore 61 under the effect of Compress Spring 63 restoring forces, whole rotating cylinder 5 is stuck and cannot rotate by lock pin 64, now rotate swing handle 8, in the time that contacting the rear lever 31 of dead bolt 3, swing arm 9 cannot rotate, along with the further rotation of swing handle 8, the rotating shaft 81 of swing handle 8 is skidded with the sloped contact surface 811 of swing arm rotating shaft 91, swing arm rotating shaft 91 moves and further compression reseting spring 92 gradually afterwards, whole swing handle 8 is in idling conditions, whole theftproof lock is in complete lock-out state.

In the time unblanking, insert key in the key hole 21 of lock core 2, the protruding tooth of key will promote lock 65 outer moving and makes each lock pin 64 depart from the intercommunicating pore 61 of lock core 2 completely, now rotating cylinder 5 is in free rotary state, now rotate swing handle 8, swing handle 8 rotates Timing Belt movable pendulum arm 9 and promotes dead bolt 3 rear portion pins 31 and drive dead bolt retraction, and the retraction of dead bolt 3 carries out unblanking of theftproof lock on the one hand, drive rotating cylinder 5 to rotate by the straight-tooth structure 33 of dead bolt 3 bottoms with engaging of rotating cylinder interlock tooth 51 simultaneously, now the lock pin 64 of locking mechanism holds at the outer wall of lock core 2 and slides, this process until dead bolt 3 inside contract completely realize unblank.

And need to again lock time, only need to counter-rotate turning handle 8, drive swing arm 9 reversion to promote the anterior pin 32 of dead bolts 3 and promote dead bolt and stretch out, drive rotating cylinder 5 to rotate backward by the straight-tooth structure 33 of dead bolt 3 bottoms with engaging of rotating cylinder interlock tooth 51 simultaneously, this process until dead bolt 3 stretch out completely realize unblank, now the rotating cylinder pin-and-hole 62 of locking mechanism and the intercommunicating pore 61 of lock core are again corresponding, lock pin 64 again enters in the intercommunicating pore 61 of lock core under the effect of Compress Spring 63 restoring forces, rotating cylinder 5 is just locked, realizes locking of theftproof lock.

The whole process of unblanking above, only need to insert key can unblank, lock core 2 is connected in completely on fixed panel 4 and does not rotate, and can effectively prevent that lock core 2 from being rotated destruction by artificial pressure, has feature simple in structure, easy to use, that key is indeformable, theftproof performance is strong.

Above safety anti-theft lock is not only applicable to door lock and uses, and is equally applicable to bicycle, the use of the safe antitheft in electric motor car.

The above, it is only preferred embodiments of the present utility model, not utility model is done to any pro forma restriction, every foundation know-why of the present utility model, to any simple modification made for any of the above embodiments, equivalent variations or modification, still belongs in the scope of technical solutions of the utility model.

Claims

1. the safety anti-theft lock that lock core is motionless, comprise lock body, lock core and telescopic dead bolt are installed on lock body, the centre of lock core is provided with key hole, it is characterized in that: the outer end of described lock core band key hole is directly connected on lock panel, described lock core the inner is arranged with a rotating cylinder that can rotate relative to lock core, is provided with the locking mechanism that lockable rotating cylinder rotates between rotating cylinder and lock core, and the outer wall of rotating cylinder is provided with the interlock tooth being meshed with the straight-tooth structure of dead bolt rear end lower; Described dead bolt upper rear end is interval with two pins; On described lock body, be also provided with a swing handle, in the rotating shaft of swing handle, connect a swing arm, swing arm extend between two pins of described dead bolt, and swing handle drives the maximum driving force of swing arm to be greater than the resistance under rotating cylinder free state and to be less than the resistance that rotating cylinder is locked by locking mechanism.

2. the motionless safety anti-theft lock of lock core as claimed in claim 1, it is characterized in that: described locking mechanism comprise some intercommunicating pores of being arranged on lock core sidewall and be arranged on rotating cylinder inwall with described intercommunicating pore pin-and-hole one to one, Compress Spring and lock pin are installed in each pin-and-hole, lock pin can enter in the lock core intercommunicating pore of correspondence position under the effect of Compress Spring restoring force, in each lock core intercommunicating pore, is provided with the lock holding mutually with described lock pin.

3. the motionless safety anti-theft lock of lock core as claimed in claim 2, it is characterized in that: between described lock core bottom and rotating cylinder endoporus bottom, be provided with the second locking mechanism, this second locking mechanism comprise be arranged on the some intercommunicating pores on lock core bottom and be arranged on rotating cylinder endoporus bottom with described intercommunicating pore pin-and-hole one to one, Compress Spring and lock pin are installed in each pin-and-hole, lock pin can enter in the lock core intercommunicating pore of correspondence position under the effect of Compress Spring restoring force, in each lock core intercommunicating pore, is provided with the lock holding mutually with described lock pin.

4. the motionless safety anti-theft lock of lock core as described in claim 1-3 any one, it is characterized in that: the rotating shaft of described swing handle and the rotating shaft of swing arm are nested with on same locating shaft, the link of two rotating shafts connects by sloped contact surface or arc contact surface, and the rotating shaft other end of swing arm holds mutually with a back-moving spring.