Inner safety device of security door

Abstract

The invention relates to an inner safety device of a security door. An inner safety driving mechanism of the device is formed by an inner safety part, a connecting rod and a rotating part, and the inner safety part is connected with the rotating part through the connecting rod; a remote-control or sensing driving mechanism comprises a composite gear, a transmission shaft, a motor and a control circuit module; and the rotating part in the inner safety driving mechanism is connected with one end of a rotating shaft, the other end of the rotating shaft is connected with a composite gear of the remote-control or sensing driving mechanism, the composite gear is directly connected or jointed with the transmission shaft, and the transmission shaft is connected with the motor and control circuit module. The inner safety device and a security door lock can be designed integrally, and the inner safety device can also be independently arranged to improve the position of the inner safety part, so that the anti-theft performance is strengthened; and the inner safety part of the security door can be controlled through electronic remote control or magnetic induction to be closed indoors or outdoors, the inner safety part cannot be opened even though a lock cylinder is damaged, and therefore the anti-theft aim is achieved.

Description

technical field [0001] The invention relates to an inner safety device of an anti-theft door. Especially the internal safety device with electronic remote control or induction. Background technique [0002] At present, the common mechanical door lock structure includes an inner handle, an outer handle, a movable deadbolt, a lock cylinder, a key safety and a manual safety. The inner handle is connected and can control the closing of the movable dead bolt, and the lock cylinder is connected and controls the movable dead bolt and the key. The closing of the safety, the manual safety is controlled by another manual mechanism, and the outer handle plays a role in opening the door. There are also some locks whose outer handle is connected with the movable deadbolt and can control the closing of the movable deadbolt; when used, it can be divided into indoor and outdoor. If you close the door indoors and the movable deadbolt is automatically closed, you can manually close the secur...

AI Technical Summary

Problems solved by technology

[0002] At present, the common mechanical door lock structure includes an inner handle, an outer handle, a movable deadbolt, a lock cylinder, a key safety and a manual safety. The inner handle is connected and can control the closing of the movable dead bolt, and the lock cylinder is connected and controls the movable dead bolt and the key. The closing of the safety, the manual safety is controlled by another manual mechanism, and the outer handle plays a role in opening the door. There are also some locks whose outer handle is connected with the movable deadbolt and can control the closing of the movable deadbolt; when used, it can be divided into indoor and outdoor. If you close the door indoors and the movable deadbolt is automatically closed, you can manually close the security door to ensure that the anti-theft door is not opened, and turn the lock cylinder with the key to close the key security. This double security anti-theft method is the safest; When the door is closed outdoors, after the movable deadbolt is automatically closed, the lock cylinder can only be turned by the key, and then the key safety can be closed, instead of the manual safety. For example, the lock can be opened in a few minutes and has little anti-theft performance

[0003] Now, there is an electronically driven and remote-controlled electronic anti-theft lock on the market. Its internal structure is almost exactly the same as that of a mechanical door lock, except that a motor control mechanism and a gear-driven spindle mechanism are added, and the remote control motor drives the spindle to control the lock cylinder. Control the closing of the movable lock tongue and the key safety. The advantage of this electronic anti-theft lock is that the position of the lock cylinder cannot be seen from the outside, but in fact, the function of the key is replaced by the gear transmission spindle mechanism, that is, the gear transmission spindle mechanism is equivalent to a the key, but the actual anti-theft effect has not been fundamentally resolved. First, if you forget to lock the key safety when you go out, the thief can control the inner handle and open the movable deadbolt through the peephole; After prying off the cover of the guard lock and destroying the lock cylinder (usually the position of the lock cylinder is close to the position of the handle), the buckle is released by turning the lock key, so that the movable lock tongue and the key can be safely opened and closed.

[0004] In addition, we also think that the position of the outer handle makes it easy for the thief to judge the position of the anti-theft lock, which increases the difficulty of anti-theft, and the outer handle is necessary for anti-theft doors; secondly, we always ignore a factor, why people When indoors, it is impossible to open the anti-theft door from the outside after manual safety through human control

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