CN2182120Y

CN2182120Y - Anti-theft alarm for bicycle

Info

Publication number: CN2182120Y
Application number: CN 93248077
Authority: CN
Inventors: 王传名
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-12-30
Filing date: 1993-12-30
Publication date: 1994-11-09
Anticipated expiration: 2003-12-30

Abstract

The utility model provides an anti-theft alarm for a bicycle which can be easily installed and is difficult to be pried. The box body of the utility model is two half box bodies which can be buckled and clamped on the beam of the bicycle, and fixing screws are arranged on the box body and are used for fixing the two half box bodies. A mechanical lock is installed on the extending position of a lock tongue, and the heads of the fixing screws are covered by the extending position of the lock tongue when the utility model is locked. The power supply switch of an alarm is installed at the miniature travel switch of the side of the lock tongue, and the miniature travel switch is controlled by the lock tongue. The utility model has the advantages that the convenient installation is realized, and the utility model is difficult to be pried.

Description

Anti-theft alarm for bicycle

The utility model relates to a kind of improved bicycle anti-theft alarm device, particularly a kind of bicycle anti-theft alarm device of being pried open not only easy for installation but also difficult.

China Patent No. is the disclosed bicycle anti-theft alarm devices of 90222790.4 " the little power consumption electronic anti-theft alarms of bicycle "; though it is provided with a pick-proof switch; the button of this switch is closed because of being oppressed by shell, can send chimes of doom, and shell does not play a protective role before being pried open.

Task of the present utility model provides a kind of bicycle anti-theft alarm device of being pried open not only easy for installation but also difficult.

Task of the present utility model is finished as follows, this bicycle anti-theft alarm device includes the box body of electronic anti-theft warning circuit and is contained in the interior mechanical lock of box body, box body is for fastening and be clamped in the two halves box body on the bicycle beam, the fixedly fix screw of two halves box body is arranged on box body, mechanical lock is contained in when dead bolt stretches out (pinning) and covers on the position of fix screw head, and the source switch of annunciator is to be contained in the other micro limit switch by dead bolt control of dead bolt.

By bike the time, the mechanical lock of this device is opened, in the dead bolt indentation lock body, do not touch micro limit switch, this switch disconnects, no working power, when bicycle storing, the mechanical lock of this device is locked, and dead bolt stretches out and covers the fixedly fix screw head of two halves box body, makes the not quick detachable box body of robber.When mounted, as long as the two halves box body is worn on the beam of bicycle, fasten the two halves box body, the fix screw of two halves box body is tightened, make it to be clamped on the bicycle beam, lock mechanical lock, dead bolt stretches out the shake-up micro limit switch, connect the power supply of annunciator, make it to be in the anti-theft alarm state for the treatment of, dead bolt stretches out the ailhead that covers fix screw simultaneously, thereby be difficult for being prized or dismantling, the utility model is compared with existing bicycle anti-theft alarm device, has both easy for installationly, is difficult for the characteristics of being pried open again.

Concrete structure of the present utility model is provided by following examples and accompanying drawing thereof.

Fig. 1 is that bicycle anti-theft alarm device that the utility model provides is installed in the view on the bicycle beam.

Fig. 2 is the A-A section enlarged diagram of the bicycle anti-theft alarm device that provides of the utility model.

In Fig. 1, Fig. 2,1. box body 2. bicycle beams 3. assembly openings 4. fix screws 5. micro limit switch 6. dead bolts 7. lock bodies

The annunciator that the utility model provides comprises the box body 1 that the electronic anti-theft warning circuit is housed, box body 1 is the two halves box body that can be fastened on the bicycle beam 2, the fixedly fix screw 4 of two halves box body is arranged on box body 1, mechanical lock be contained in dead bolt 6 when stretching out dead bolt cover on the position of ailhead of fix screw 4, can not dismantle it from assembly opening 3, by dead bolt 6 stretch out or withdraw control micro limit switch 5.This device is easy for installation on bicycle, and two halves box body 1 is worn on the bicycle beam 2, fastens the two halves box body, from the be tightened fix screw 4 of two halves box body of mounting hole 3, can be clamped on the bicycle beam 2.Do not open mechanical lock, not quick detachable.

Claims

1, a kind of bicycle anti-theft alarm device, it comprises the box body [1] that the electronic anti-theft warning circuit is housed and is contained in box body [1] interior mechanical lock dead bolt [6], lock body [7], it is characterized in that: box body [1] is the two halves box body that can fasten and be clamped on the bicycle beam [2], the fixedly fix screw of two halves box body [4] is arranged on box body [1], mechanical lock dead bolt [6], lock body [7] are contained in dead bolt [6] and cover when stretching out on the position of ailhead of fix screw [4], and the source switch of annunciator is to be contained in the other micro limit switch [5] by dead bolt [6] control of dead bolt [6].