A manually releasable electric push rod lock

Abstract

The invention discloses an electric push rod lock capable of being manually released. The electric push rod lock comprises a lock head pipe, a drive mechanism, a telescopic mechanism and a lock head body arranged in the lock head pipe. The drive mechanism is connected with the first end of the telescopic mechanism, and the second end of the telescopic mechanism is connected with the lock head body. An elastic supporting piece is further arranged outside the telescopic mechanism. The drive mechanism controls the telescopic mechanism to generate the telescopic action. The telescopic mechanism drives the lock head body to stretch out and contract back in the lock head pipe under the supporting action of the elastic supporting piece so that a lock head can generate the locking or unlocking action. The lock head body is further provided with a traction component, and space allowing the first end of the telescopic mechanism to move therein is arranged in the lock head pipe. When the drive mechanism fails, the traction component pulls the traction component to enable the lock head body to extrude the elastic supporting piece so as to enable the lock head body to return, and the lock head generates the unlocking action. Under the non-power condition, contraction of the lock head can be manually controlled, the electric push rod lock is suitable for escape doors, emergency unloading and emergency gliding windows and other emergency releasing occasions.

Description

technical field [0001] The invention relates to a manually releasable electric push rod lock, which belongs to the technical field of mechanical-electrical integration and automatic control. Background technique [0002] At present, there are two types of non-electromagnetic countersunk locks for access control on the market: one is the lock head that does not retract when the power is turned off, and the other is the lock head that automatically retracts after the power is turned off. However, it is often used in highly confidential and high-level access control places with high security requirements, and the latter type of non-electromagnetic countersunk lock is generally not allowed. [0003] Existing electric push rod locks, for example, when used as a car gear lock or a non-electromagnetic countersunk lock for access control, the lock head can be controlled by an electric push rod to extend and retract, but when the power is off, Even in the absence of any power supply...

AI Technical Summary

Problems solved by technology

[0005] In addition, in the past, this type of electric lock mechanism was basically used to lock objects with light loads, and the electric lock mechanism that could withstand more than 10 tons of lateral shear force has not appeared and described in the market or related literature.

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