An anti-theft lock device

Abstract

The invention discloses an anti-theft lock device, which comprises a circular support frame and a power supply. A pair of beams are symmetrically arranged at the front and rear ends of the circular support frame, that is, an upper beam and a lower beam. A pair of brake pads are elastically connected between them. The brake pads are divided into upper brake pads and lower brake pads. A set of shape-memory alloy springs are arranged between the corresponding sides of the upper brake pads and the lower brake pads. Each set of shape-memory alloy springs The alloy springs all include a one-way heat-shrinkable spring and a double-way heat-extensible and cold-shrinkable spring, and the two ends of the one-way heat-shrinkable spring and the two ends of the double-way heat-extensible and cold-shrinkable spring are respectively connected to the power supply through a brake switch and a transformer. The invention controls the input current signal to drive the shape-memory alloy spring so that the brake pad hugs the rotating disc, so as to achieve the purpose of locking the wheel. The device has a relatively simple structure, is easy to install, has low cost, and is beneficial to market promotion.

Description

technical field [0001] The invention relates to an anti-theft lock device. Background technique [0002] At present, the anti-theft technology of two-wheeled and three-wheeled electric vehicles and motorcycles on the market is relatively low. Most of them can only lock the tires of the car. open question. Today's thieves are all-pervasive. For them, unlocking is just a matter of craftsmanship and numbers. Most of them are engaged in motor vehicle repair and lock-picking technology. They are very familiar with the structure of vehicles and are skilled in theft methods. For car locks, disconnection, and connection of vehicle lines, etc., bolt cutters, screwdrivers, cross lock breaking tools, multi-type electric vehicle keys, motorcycle ignition locks and other criminal tools are often used, resulting in many two-wheeled and three-wheeled electric vehicles and motorcycles being damaged. The car is stolen. [0003] There are many mechanical locks and electronic locks in the m...

AI Technical Summary

Problems solved by technology

The magnetic drive anti-theft lock valve mentioned in this article adopts a magnetic drive mechanism. The head end of the magnetic drive anti-theft lock valve is replaced by an ordinary mechanical anti-theft lock. The pressure plate of the valve opening can move up and down, so that the valve is in the open or closed state. However, this method makes the use process complicated and expensive. The magnetic lock is limited by the magnetic force, and the magnetic lock can only be opened in one direction. , the installation position is also limited

U.S. Patent US20160048673A1 proposes an electronic security lock. The electronic security lock uses a processing program to store instructions in the memory. When a program is executed, the electronic security lock receives an electronic certificate instruction to apply for unlocking. After receiving the instruction This program verifies whether the certificate is valid. The lock has a security level. During this period, the certificate instruction will be unlocked only when it reaches the preset security level. The electronic security lock is easy to operate, but the electronic certificate is easy to be illegal. Copy, and the electronic security lock is easy to be unlocked by abnormal methods (such as tools, picking, using strong magnets, etc.)

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