CN2403863Y

CN2403863Y - Antitheft alarming lock for bicycle

Info

Publication number: CN2403863Y
Application number: CN 99253391
Authority: CN
Inventors: 李德福
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-11-18
Filing date: 1999-11-18
Publication date: 2000-11-01
Anticipated expiration: 2009-11-18

Abstract

The utility model relates to an anti-theft alarming lock for a bicycle. The utility model is composed of an anti-theft lock and an electronic alarm system, wherein, a lock core (10), a lock plug (12) and a lock bolt (13) are arranged in the anti-theft lock; the electronic alarm system is arranged in a lock body (1) and is composed of an alarm device (2), a battery (4), a battery contact (3), a normally closed switch (15) and a normally opened switch (11). Under the condition of normal lock, the lock bolt (13) is butted on the normally closed switch (15) to be switched off through a push rod (14); the lock plug (12) is inserted in a rabbet of the lock bolt (13) and presses the normally opened switch (11) to be switched on through a pressing block (2) on the lock plug (12); when the anti-theft lock is unlocked with illegal means, the lock bolt (13) is disengaged from the lock body (1); then the normally closed switch (15) is switched on, the alarm device gives an alarm, so that the purposes of frightening thieves, reminding hosts and preventing theft in time are achieved; the utility model is an ideal and practical anti-theft lock for a bicycle.

Description

The bicycle alarm anti-theft lock

The utility model is to belong to a kind of anti-theft lock for bicycle.

Various anti-theft lock for bicycle before the utility model all are the anti-sledge intensity and the opening difficulty that increases lock that improves lock with the method for machinery, to improve the theftproof performance of lock, hinder the robber and remind owner to note but can't frighten with chimes of doom.

The purpose of this utility model overcomes the deficiencies in the prior art exactly, provides a kind of theftproof performance of existing existing anti-theft lock for bicycle can frighten resistance robber and the anti-theft lock for bicycle of reminding owner with chimes of doom again.

The utility model is achieved through the following technical solutions.The utility model is made up of electronic warning system and theftproof lock major part.Electronic warning system is contained in the lock housing body (1), electronic warning system is by electronic alarm (2), battery (4), battery contact (3), normally closed switch (15), normal open switch (11) and connection lead are formed, normally closed switch (15) is contained in the interior left tube chamber (16) of lock housing body (1), insertion or extraction by lock bolt (13) directly or by push rod (14) are controlled the open close of normally closed switch (15), normal open switch (11) is contained in the interior right tube chamber (17) of lock housing body (1), by lock core (10) stir lock insert (12) on get off to control the disconnected and logical of normal open switch (11), theftproof lock is by lock housing body (1), lock core (10), lock is inserted (12), lock bolt (13) is formed, lock is inserted (12) and is contained in the right tube chamber (17), the top of lock slotting (12) has stirs mouthful (18), the terminal plush copper (19) of lock core (10) is enclosed within stirs in mouthful (18), the middle part that lock is inserted is provided with briquetting (20), when key inserts the middle twisting of lock core (10) key, plush copper (19) stir mouthful (18) thus in rotate and stir lock slotting (12) and move up and down, control the disconnected and logical of normal open switch (11) to making the briquetting (20) on the lock slotting (12), reach the purpose of unblanking simultaneously with lock, lock bolt (13) can pass right tube chamber (17) and insert in the left tube chamber (16), the termination that lock bolt (13) is ensconced in the right tube chamber (17) has seam, and lock is inserted in the bottom insertion seam of (12) during pinning

For the ease of changing battery (4), in lock housing body (1), add a battery upper shield (5), the right bottom of battery upper shield (5) has the hole, so as theftproof lock when pinning stopping bar (7) can stretch into wherein.

In order to prevent that the robber from taking out battery and destroying warning system, add stopping bar (7), have two hinge holes on the stopping bar (7), interstitial hole and lock housing body (1) are hinged, it is hinged that end aperture and lock are inserted (12), inserts (12) when lock and insert following time and just spur in the hole that thick stick (7) only stretches into battery upper shield (5) and pin battery upper shield (5).

In order to improve antitheft sensitivity, lock bolt (13) stretches into the end face of left tube chamber (16) and vertical plane and does and acutangulate, also make the inclined-plane of angle of isocline mutually in left tube chamber (16) in the lock housing body (1) and the corresponding inlet of lock bolt (13) sloping core face, when the robber cuts off lock bolt (13), one section of tube chamber (16) of keeping left just can drop, and normally closed switch (15) is connected alarm equipment alarm.

The utility model is work like this, under the situation of normally unblanking, key inserts lock core (10), twisting key plush copper (19) heads on lock slotting (12) and up moves, lock is inserted the seam that (12) leave lock bolt (13), normal open switch (11) disconnects, stopping bar (7) leaves the hole of battery upper shield (5), extracts lock bolt (13) out, and normally closed switch (15) is connected, but entire circuit is obstructed, alarm does not ring, and lock bolt (13) angled end-face inserts in the tube chamber (16) and forces push rod (14) up to push up when pinning, and lock is inserted (12) and inserted down, normal open switch (11) is logical like this, and normally closed switch (15) disconnects.At this moment, with illegal ment lock bolt (13) and lock housing body (1) are separated, normally closed switch (15) is connected, alarm equipment alarm.

Now provide most preferred embodiment shown in the drawings by the utility model in order better to illustrate.Fig. 1 is mechanical realization figure, and Fig. 2 is circuit theory diagrams.Among the figure:

1. lock housing body; 2. alarm; 3. battery contact; 4. battery; 5. battery upper shield; 6. screw;

7. stopping bar; 8. pin; 9. hinge pin; 10. lock core; 11. normal open switch; 12. lock is inserted; 13 lock bolts;

14. push rod; 15. normally closed switch; 16. left tube chamber; 17. right tube chamber; 18. stir mouth;

19. the plush copper of lock core end; 20. briquetting.

Compare with existing technology, therefore the utility model can frighten the resistance robber and remind owner owing to be provided with warning system and relative trigger mechanism with chimes of doom, in time plays antitheft purpose; Again because an end face of lock bolt (13) is the inclined-plane, so antitheft sensitivity is improved.

Claims

1. bicycle alarm anti-theft lock, by electronic alarm (2), battery (4), battery contact (3), normally closed switch (15), normal open switch (11) and connect electronic warning system that lead constitutes and by lock housing body (1), lock core (10), lock is inserted (12), the theftproof lock that lock bolt (13) constitutes is formed, it is characterized in that electronic warning system is contained in the lock housing body (1), normally closed switch (15) is contained in the interior left tube chamber (16) of lock housing body (1), the insertion of lock bolt (13) or extraction can directly or by push rod (14) be controlled the open close of normally closed switch (15), normal open switch (11) is contained in the interior right tube chamber (17) of lock housing body (1), lock core (10) rotate can stir lock insert (12) on get off to control the disconnected and logical of normal open switch (11), lock is inserted (12) and is contained in the right tube chamber (17), the top of lock slotting (12) has stirs mouthful (18), the terminal plush copper (19) of lock core (10) is enclosed within stirs in mouthful (18), the middle part that lock is inserted (12) is provided with briquetting (20), briquetting (20) can be inserted with lock and get off to control the disconnected and logical of normal open switch (11) on (12), lock bolt (13) can pass freely through right tube chamber (17) and insert in the left tube chamber (16), and the termination that lock bolt (13) is ensconced in the right tube chamber (17) has seam.

2. bicycle alarm anti-theft lock according to claim 1 is characterized in that the last right part in lock housing body (1) is provided with a battery upper shield (5), and battery upper shield (5) is separable with lock housing body (1), and the right bottom of battery upper shield (5) has the hole.

3. bicycle alarm anti-theft lock according to claim 1, it is hinged to it is characterized in that lock is inserted the end aperture of the upper end of (12) and stopping bar (7), and the interstitial hole of stopping bar (7) and lock housing body (1) are hinged.

4. bicycle alarm anti-theft lock according to claim 1, it is characterized in that end face and vertical plane that lock bolt (13) stretches into left tube chamber (16) acutangulate, also make the inclined-plane that equates acute angle in the left tube chamber (16) in the lock housing body (1) and the corresponding inlet of lock bolt (13) angled end-face.