CN2158373Y - Anti-theft alarm for bicycle - Google Patents

Abstract

The utility model relates to an alarm device, in particular to bicycle burglar alarm, it is mainly by the locking device who is used for locking alarm system for triggering alarm circuit with weight, music integrated package and speaker, shell, power constitute, when alarm device is in lock-out condition, the swing of weight can connect the power, makes the music integrated package sound production, thereby drives the speaker and sends the high sound alarm. The utility model discloses adopt totally closed structure basically, can fix in any position of bicycle, simple structure, it is convenient to set up, and the circuit all is in open a way under non-locking state and the state of waiting, has reduced the power consumption.

Description

Alarm device for theft-proof for bicycle

The utility model relates to a kind of warning device, particularly a kind of bicycle anti-theft alarm device.

At present, the medium and high-grade bicycle progressively enters general family, and it is also more and more to be accompanied by the robbed or burgled phenomenon of bicycle, and existing measure generally is that bicycle lock is transformed, and what make lock itself has anti-theft feature.But the offender often understands the structure of lock very much, thereby can be in the short period of time with its destruction, some burglar even must not open lock, only tangles clothes hanger behind the vehicle with being contained in hook between waist, make trailing wheel unsettled, in the face of day " push away " and walk bicycle.

The purpose of this utility model provides a kind of bicycle anti-theft alarm device that can give the alarm when the burglar steals bicycle.

The purpose of this utility model be achieved in that described annunciator by the blocking device that is used to lock annunciator, dual hammer, music-integrating block and the loud speaker, shell, the power supply that are used to trigger warning circuit form, but the swing energized of weight, make the music-integrating block sounding, send loud alarm thereby drive loud speaker.

Described blocking device is to be fixed with one can drive the extension rod that compressing tablet moves up and down and is used for fixing shell on the dead bolt of existing lock, and compressing tablet one end is fixed in the extension rod suitable position, is fixed with two copper sheets on the other end, respectively the positive pole and the trigger electrode of power connection.Shipper pole dynamic pressure sheet makes circuit be in disconnection on the dead bolt, and dead bolt moves down the drive compressing tablet makes circuit be in the part conducting.

Described dual manganese is made up of outer hammer and interior hammer, outer hammer outside is surrounded by one deck copper sheet, there are two contacts 17 its inboard, lower end, when hammering the upper end into shape outside compressing tablet compresses, makes outer hammer be fixed on plumbness, contact 17 is communicated with a copper sheet on the compressing tablet through copper sheet 13, interior hammer is fixed in outer hammer the inside, can freely swing, and interior hammer is an electric conductor, the both sides, lower end with outside two contacts are relative that two contacts should be arranged on the hammer, be communicated with copper sheet 8 on the compressing tablet by anchor shaft and copper sheet 12.

Because the utility model adopts latch-up structure, but the circuit of warning device is disconnected in-use vehicle the time, thereby can avoid normal newspaper not stop, again owing to adopted dual hammer switch, so its sensitivity is very high.Described siren horn adopts full-closed structure basically, can be fixed in any position on the bicycle, and is simple in structure, be provided with conveniently, and circuit all is in open circuit under non-locking and stand-by state, greatly reduces power consumption.It also has certain rainproof function, adapts to use under than the inclement weather condition, and is less demanding to surrounding environment.

Following structure accompanying drawing further describes the utility model.

Fig. 1 is the lateral plan that cuts open behind the decapsidate.

Fig. 2 is the front elevation that removes end cap.

Fig. 3 is to the section-drawing of being done along A-A.

Fig. 4 is the alarm circuit wiring schematic diagram.

Shown in the figure: 1, interior hammer, 2, outer hammer, 3, extension rod, 4, dead bolt, 5, lock, 6, shell, 7, compressing tablet, 8,9,12,13, copper sheet, 10, outer hammer axle, 11, interior axle, 14, bolt, 15, tetragonal nut, 16,17, the contact, 18, loud speaker, 19, music-integrating block, 20, battery case.

The used lock of present embodiment is known drawer lock, on its dead bolt, be fixed with one and can drive the extension rod 3 that compressing tablet 7 moves up and down and is used for fixing shell 6, extension rod 3 one ends insert in the circular groove of shell, compressing tablet 7 one ends are fixed in extension rod 3 suitable positions, compressing tablet 7 other ends are fixed with the positive pole and the trigger electrode of a copper sheet 9 and copper sheet 8 difference power connections, Mobile Communication crosses extension rod 3 and drives compressing tablet on the dead bolt, makes circuit be in disconnection, moves down to make circuit be in the part conducting state.

Dual hammer is made up of interior hammer 1 and outer hammer 2, hammers inboard two contacts 16, lower end outward into shape, and interior hammer 1 is fixed in outer hammer 2 the insides, can freely swing, and interior hammer 1 is an electric conductor, the both sides, lower end with outside hammer that two contacts are relative should two contacts 17 into shape.

Before using this device is fixed on the car body, when the lock car, simultaneously warning device is locked, dead bolt is depressed and weight 2 closed contacts by extension rod 3 interlock compressing tablets 7, outer hammer 2 is fixed in the nature plumbness, simultaneously, trigger switch is connected on the outer hammer 2 with the outer copper sheet of hammering into shape on 2 12,13 by the copper sheet on the compressing tablet 78, copper sheet 9.Wherein copper sheet 8 is communicated with contact 17 on the interior hammer 1 through copper sheet 12 and by axle 11, and copper sheet 9 is communicated with contact 16 through copper sheet 13.Interior hammer 1 mediates, contact the 16, the 17th, and open circuited, warning is in stand-by state.

If bicycle is touched by the people, the vibration of vehicle body reaches system, interior hammer 1 will be the center swing with axle 11 under gravity and action of inertia, thereby make contact 16,17 contacts, circuit turn-on, sound the alarm, it is also static to reset fully until vehicle body, opens lock with key, remove stand-by state, end to report to the police.

Whole device fixedly the time, is passing bolt 14 by inside to vehicle body, and external application tetragonal nut 15 is fixing, is difficult to from the outside system be separated with car body, makes device self possess higher theftproof performance.

The utility model also can use on motor bike.

Claims (2)

1, a kind of bicycle anti-theft alarm device, comprise the music-integrating block that is used for sounding, loud speaker and power supply, music-integrating block output termination loud speaker, of the present utility model being characterised in that: described annunciator also has the blocking device that is used to lock warning, be used for the dual hammer that trigger circuit are reported to the police, blocking device is to be fixed with extension rod 3 on dead bolt, extension rod 3 one ends insert in the circular groove of shell 6, the other end is connected with compressing tablet 7, be fixed with two copper sheets 8 on compressing tablet 7 one ends, 9, the positive pole and the trigger electrode of difference power connection, its outer hammer 2 outside two copper sheet positions with dual hammer are relative, and extension rod 3 can drive compressing tablet 7 and move up and down.

2, bicycle anti-theft alarm device according to claim 1, it is characterized in that: described dual hammer is made up of interior hammer 1 and outer hammer 2, interior hammer 1 is fixed in outer hammer 2 the insides, can swing, it is an electric conductor, and hammering 2 external stabilities outward into shape has one deck copper sheet 13, and there are two contacts 16 its inboard, lower end, both sides, interior hammer 1 lower end with outside two contacts 16 of hammer on 2 are relative that two contacts 17 should be arranged, the swing of interior hammer 1 can make contact 16 and contact 17 contact.

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