CN2165198Y

CN2165198Y - Theft-proof lock for bicycle

Info

Publication number: CN2165198Y
Application number: CN 93228909
Authority: CN
Inventors: 柴颖; 高峰
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-08-02
Filing date: 1993-08-02
Publication date: 1994-05-18
Anticipated expiration: 2003-08-02

Abstract

The utility model belongs to a theft-proof lock for a bicycle, which is composed of a lock body and a lock ring. The utility model is characterized in that a theft-proof alarm device is arranged on the annular lock ring; a battery, a vibration sensor, and a voice circuit board are arranged in the theft-proof alarm device, and a spring pin and a power supply connection point are arranged at a socket point. The switching of the connection point is determined by the insertion of the annular lock ring, and the vibration of the sensor causes the voice circuit board to operate and send out alarm signals. The utility model has the advantages of simple structure, low cost, easy production, and safety function, and the utility model can be arranged on a common annular lock for being used.

Description

Theft-proof lock for bicycle

The utility model belongs to a kind of warning lock.

A kind of lock that generally uses in the market is shape of a hoof ring lock, is made up of lock body and annular locking bar, and locking bar can separate with lock body and plug together, this kind of lock construction is simple, and is easy to use, and weak point is to lack anti-theft alarm function, the vehicle that happens occasionally is lost phenomenon, does not have the purpose of taking precautions against fully.

For solving the deficiency of above lock, the purpose of this utility model provides a kind of anti-theft lock for bicycle, is added with anti-theft alarm function on the lock ring of ring lock, has effectively solved the purpose of bicycle theft-prevention.

Structure design of the present utility model is achieved in that on the lock ring of bicycle circular lock and is added with burglar alarm (as shown in Figure 2), its structure of warning device is that the outside is rectangle one housing, be placed with little loudspeaker at the one end, the centre is a battery case, be placed with two joint No.5 cells, it below the battery sound circuit plate, circuit board and power supply join, connect vibrating sensor on the circuit board, can be mercoid switch, be the ring lock bar jack below the housing, jack one side is equipped with spring catch, and the other end of spring catch is the power switch contact.The top of housing is battery case lid, has two jacks on the lid equally, and the back of closing is corresponding with the ring lock bar jack, and after locking bar inserted, whole lock was in aggregates.

Operating principle:, the power supply contact in the jack is connected, when bicycle is subjected to certain vibrations when lock ring shape locking bar inserts from jack, the closed whole circuit of vibrating sensor is connected, and sound circuit plate generation alarm sound is realized the warning purpose, when locking bar was transferred to, warning circuit disconnected, and alarm is not worked.

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

Fig. 1 is an anti-theft lock for bicycle warning device structure chart;

Fig. 2 is an anti-theft lock for bicycle profile assembling drawing.

Its structure is known by Fig. 1: (1) is the warning device housing, is little loudspeaker (2) above, and middle (3) are battery, (4) be the sound circuit plate, (5) be vibrating sensor, be connected on the circuit board (4) that (6) are lock ring shape bar jack, (7) be latch lock, (8) be the power switch contact, it locks the back structure as shown in Figure 2, and A is a warning device, B is a lock body, and C is a lock ring.The cover plate of warning device has corresponding jack equally, and cover plate covers the back and inserts lock ring, and cover closure can not take off, and has guaranteed the safety of lock.

Advantage of the present utility model: simple in structure, be placed on the general ring lock and just can use, cost is low, produces easily, has played the effect of safety precaution.

Claims

1, a kind of anti-theft lock for bicycle, form by lock body and lock ring, it is characterized in that on the lock ring C of bicycle circular lock B, being added with burglar alarm A, warning device A outside is a rectangle housing (1), one end is placed with little loudspeaker (2), the centre is a battery case, be sound circuit plate (4) below, circuit board (4) joins with power supply, circuit board (4) is gone up and is connected vibrating sensor (5), below the housing (1) is ring lock locking bar jack (6), and jack (6) one sides are equipped with spring catch (7), and the other end is power switch contact (8).

2, by the described theftproof lock of claim 1, what it is characterized in that housing (1) toply is battery case lid, has two jacks on the lid equally, corresponding with jack on the housing (1).