CN201086758Y - bicycle anti-theft lock - Google Patents

Abstract

The bicycle anti-theft lock of the present utility model comprises a cylindrical lock body and a lock block. On one side of the center line of the lock body, there is an axial hole for installing a lock pin. One end of the axial hole is closed, and there is a vertical hole on the other side of the center line. The hole of the lock cylinder installed in the axial hole, the lock pin is stepped, the middle boss is a cylindrical baffle plate, the cylinder on one side of the baffle plate is covered with a return spring, and one end of the return spring is against the baffle plate, The other end is against the closed end of the axial hole, and the other side of the baffle plate is a rectangular strip lock tongue. On the plane, the lock block is formed by opening several grooves for accommodating the insertion of the deadbolt in the 120° arc range on the bicycle front fork riser. The bicycle anti-theft lock has a simple structure. The lock is installed inside the bicycle, and when locked, the headstock is pinned with a lock pin to make its swing function invalid. The lock has good anti-theft performance and low cost, the lock block is flexibly braked at multiple angles, the lock is easy and convenient, and the lock body can be replaced.

Description

bicycle anti-theft lock

technical field

The utility model relates to a bicycle anti-theft lock.

Background technique

In a large number of various vehicle theft cases, car thieves unlock the locks by force. Existing general car lock does not affect the service performance of vehicle (as bicycle, motorcycle etc.) usually after being forcibly destroyed, just because of this, just makes forcibly breaking the lock become a kind of important means of stealing a car, and most stolen vehicles are This is how it was stolen. When people improve the anti-theft performance of the bicycle lock, they often also increase the difficulty of the thief forcibly picking the lock from how to improve the complexity and anti-destructiveness of the bicycle lock itself, but the results have been proved to be not good.

Contents of the invention

The purpose of the utility model is to provide a bicycle anti-theft lock with simple structure, low cost, powerful anti-theft function, easy to use and good replaceability.

The bicycle anti-theft lock of the present utility model comprises a cylindrical lock body and a lock block. On one side of the center line of the lock body, there is an axial hole for installing a lock pin. One end of the axial hole is closed, and there is a vertical hole on the other side of the center line. The hole of the lock cylinder is installed in the axial hole, the lock pin is stepped, and is composed of a coaxial return spring, a baffle plate, and a lock tongue. The middle boss is a cylindrical baffle plate, and the cylinder on one side of the baffle plate is There is a return spring, one end of the return spring is against the baffle plate, the other end is against the closed end of the axial hole, the other side of the baffle plate is a rectangular strip lock tongue, and the end of the lock cylinder is fixed with a hook wheel. The hook end of the hook wheel abuts on the convex plane on one side of the dead bolt of the baffle plate, and the lock block is formed by offering several grooves to accommodate the insertion of the dead bolt in the 120° arc range on the bicycle front fork standpipe.

The installation of the utility model needs the bicycle's own structure to assist. Open an assembly hole along the extension line of the crossbeam on the front tube of the vehicle frame of the bicycle, put the lock body in the vehicle frame crossbeam of the bicycle from the assembly hole and fix it. The mounting holes are covered with label paper.

The use of the present utility model is like this:

locked. Insert the key into the lock cylinder and rotate it at a certain angle, and slightly swing the front of the car to make the deadbolt insert into one of the grooves of the lock block under the elastic force of the return spring. Thereby the headstock is pinned, and the bicycle cannot be used normally, and the purpose of locking is achieved.

unlock. Insert the key into the lock cylinder and rotate it to drive the hook wheel to rotate at a certain angle. The hook wheel compresses the spring through the baffle, so that the lock tongue is pulled out from the groove of the lock block. At this time, the swing function of the front of the car is restored, and the bicycle can be used normally again.

Compared with the prior art, the utility model has the following advantages:

The bicycle anti-theft lock of the utility model has a simple structure. Install the bicycle anti-theft lock inside the bicycle, so that the bicycle thief has nowhere to start; when locking, use the lock pin to pin the front of the bicycle to make the swing function invalid. After forcibly destroying the lock cylinder, the car is still locked and cannot be ridden away. The lock has good anti-theft performance and low cost, the lock block is flexibly braked at multiple angles, the lock is easy and convenient, and the lock body can be replaced.

Description of drawings

Fig. 1 is the overall perspective view of an angle of bicycle anti-theft lock;

Fig. 2 is an overall perspective view of another angle of the bicycle anti-theft lock;

Fig. 3 is the axial sectional view of bicycle anti-theft lock;

Fig. 4 is the assembly sectional view of bicycle anti-theft lock;

Fig. 5 is a B-B sectional view of Fig. 4 .

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further elaborated.

With reference to the accompanying drawings, the bicycle anti-theft lock of the present utility model comprises a cylindrical lock body 6 and a lock block. There is an axial hole for a device lock pin 5 on one side of the center line of the lock body 6. One end of the axial hole is closed, and the center line There is a hole of the device lock cylinder 3 perpendicular to the axial hole on the other side of the shaft. The lock pin 5 is in the shape of a ladder and is composed of a coaxial return spring 1, a baffle plate 2, and a lock tongue 7. The middle boss is a cylinder. Shaped baffle plate 2, the cylinder on one side of baffle plate 2 is covered with return spring 1, one end of return spring 1 is against the baffle plate, the other end is against the closed end of the axial hole, the other side of baffle plate 2 It is a rectangular strip lock tongue 7, the end of the lock core 3 is fixed with a hook wheel 4, the hook end of the hook wheel 4 is on the convex plane on the side of the lock tongue 7 of the baffle plate, and the lock block is on the bicycle front fork stand pipe. 120 ° arc range on the 9 offers several grooves 11 that accommodate the insertion of dead bolt 7 to form.

The assembling of bicycle anti-theft lock is shown in Fig. 4, and on the vehicle frame front tube 10 of bicycle, an assembly hole 8 is opened along the extension line of crossbeam 12, lock body is inserted in the vehicle frame crossbeam 12 of bicycle from assembly hole and fixed.

Claims (1)

1. anti-theft lock for bicycle, it is characterized in that comprising lock cylinder (6) and lock dog, the axial hole that a device lock pin (5) is arranged in a side of lock body (6) line of centers, the one end sealing of axial hole, the opposite side of line of centers has the hole of the device lock core (3) in a hole perpendicular to axial direction, lock pin (5) is stepped, pull back spring (1) by coaxial line, plate washer (2), dead bolt (7) constitutes, middle boss is cylindrical blind (2), be with pull back spring (1) on the cylinder of plate washer (2) one sides, one end of pull back spring (1) props up plate washer, the other end props up the closed end of axial hole, the opposite side of plate washer (2) is rectangular strip dead bolt (7), the end of lock core (3) is fixed with hook wheel (4), the hook end of hook wheel (4) withstands on the protruding plane of dead bolt (7) one sides of baffle plate, and lock dog is to offer several in the last 120 ° of circular arc scopes of bicycle front fork standpipe (9) to hold grooves (11) that dead bolt (7) plants and form.

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