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Safety push-rod lock

A push rod and safety technology, which is applied in the direction of building locks, buildings, building structures, etc., can solve the problems of poor reliability of emergency door locks, etc., and achieve the effect of preventing irrelevant personnel from entering, simple structure, and enhanced working reliability

Active Publication Date: 2007-08-22
FANGDA INTELLIGENT INNOVATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the technical problem of poor reliability of the existing emergency door locks, and provides a safety push rod lock that can push the door open only when the lock pin is fully retracted.

Method used

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Examples

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Embodiment Construction

[0020] Fig. 1, Fig. 2 show the basic structure of preferred embodiment of the present invention, and described safety push rod lock is lower lock pin structure, and it comprises lock bar 104, is located at the lock pin 101 of this lock bar lower end, on the lock pin A limit pin 106 with a roller is provided. The lock pin is threaded through a limit mechanism installed on the lower door frame. The limit mechanism includes: a guide frame 202 sleeved on the lock pin 101, a dial pin 105 installed on the lower door frame, and a shaft 201 hinged to the On the switch dial 102 on the guide frame, the axis of the rotating shaft is perpendicular to the axis of the lock pin (please refer to Fig. 5 and Fig. 6). On the switch dial 102, a first U-shaped groove 108 and a second U-shaped groove 109 are oppositely arranged. It is connected with the guide frame 202. When the switch turntable turns around its rotating shaft 201 and the opening of the first U-shaped groove 108 is aligned with t...

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Abstract

The present invention discloses a safety push bar lock applicable to emergency exit of cinema and theatre, etc. It is characterized by that said safety push bar lock includes a locking bar and a locking pin set on one end of said locking bar. On said locking pin a spacing pin is set and a spacing mechanism is movable-covered, and said spacing mechanism includes guide frame cover-mounted on the locking pin, switching rotating disk hinged on said guide frame and shifting pin connected with door frame. Said invention also provides the working principle of said safety push bar lock and its concrete operation method.

Description

technical field [0001] The invention relates to a push rod lock, in particular to a push rod lock suitable for escape emergency doors of public entertainment places such as subway screen doors, movie theaters and lecture halls. Background technique [0002] The existing push rod lock used on the escape emergency doors of public entertainment places such as subway screen doors, theaters or lecture halls includes a lock pin and a lock rod. The extension and contraction of the lock pin relative to the lock hole is driven by the expansion and contraction of the lock rod. Thereby realizing the locking and opening of the emergency door. Often when opening the emergency door, because the lock pin is not fully retracted, it is forcibly pushed open. The lock pin that has not shrunk in place often scratches the threshold or the ground. Due to the resistance of the threshold or the ground, it sometimes affects the opening of the door. Speed ​​poses a safety hazard. [0003] Chinese p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E05B65/10E05B15/00
Inventor 杨军
Owner FANGDA INTELLIGENT INNOVATION TECH CO LTD
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