Anti-theft electric mortise lock for roller shutter door

Abstract

The invention provides an anti-theft electric mortise lock for a roller shutter door, and relates to the technical field of roller shutter door locks. The anti-theft electric mortise lock comprises a lock box and a lock plate, wherein a motor, a worm, a worm gear and a spring bolt are arranged in the lock box, a spiral line is arranged on the worm, clamping teeth are arranged on the outer side of the worm gear, a first connecting rod and a second connecting rod are arranged between the worm gear and the spring bolt, the first connecting rod is connected with the second connecting rod through a transition shaft and rotates around the joint of the first connecting rod and the transition shaft, the second connecting rod rotates around the joint of the second connecting rod and the spring bolt, and a lock hole is formed in the lock plate. The anti-theft electric mortise lock is simple in structure, the telescopic critical distance of the spring bolt is limited, the self-locking faults are effectively prevented, the spring bolt is connected with a motor through the first connecting rod, the second connecting rod and a turbine, rotation of the turbine is effectively converted into parallel movement of the spring bolt through the first connecting rod and the second connecting rod, the structure is stable and is not prone to damage, the size of the overall structure is greatly reduced, the working height of the electric mortise lock is greatly reduced, the door closing effect of the roller shutter door is good, and the anti-theft electric mortise lock is suitable for the locking work of roller shutter doors with various specifications.

Description

technical field [0001] The invention relates to the technical field of rolling door locks, [0002] In particular, the present invention relates to an anti-theft electric mortise lock for rolling shutter doors. Background technique [0003] The electric rolling door is connected in series with multi-joint movable doors, which are opened and closed by the motor unit. The rolling door is in a fixed slideway, and the upper and lower doors are rotated around the scroll above the door. The electric rolling shutter door is suitable for commercial facades, garages, shopping malls, hospitals, factories and mines and other public places or residences, especially where the door opening is large and it is inconvenient to install the ground door body, it can be opened conveniently and quickly. [0004] After the rolling door is lowered, it is necessary to use a mortise lock to lock the bottom of the rolling door. Now many rolling doors still use mechanical locks. It is very troublesome...

AI Technical Summary

Problems solved by technology

[0005] However, the above-mentioned electric mortise lock structure still has the following problems: 1. When the first stopper (equivalent to the deadbolt) is improperly assembled or retracted too much, it is prone to self-locking failure; 2. The axial direction of the first stopper (equivalent to the deadbolt) The force is directly applied to the motor and the fixing screws of the motor, which are easy to be damaged and loosened; 3. The drive device is large in size, which makes the installation height of the lock tongue high. After the anti-theft device or disaster alarm device is installed on the bottom of some rolling doors, the It will cause the working height of the electric mortise lock of the rolling shutter door to increase, so that the closing effect is greatly reduced, and it is not suitable for the installation of electric mortise locks of all specifications of the rolling shutter door

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