Uniformly-locked sealed protection door with transition threshold

A technology for airtight doors and sills, which is applied in windowsill/threshold, door leaf, window/door, etc. It can solve problems such as door leaves cannot be opened, seal wear is unbalanced, and precise alignment cannot be achieved, so as to improve the sealing protection effect and reduce force Stable and reasonable, the effect of enhancing the protective effect
CN111119694AInactive Publication Date: 2020-05-08CHINA INST OF BUILDING STANDARD DESIGN & RES +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA INST OF BUILDING STANDARD DESIGN & RES
Publication Date
2020-05-08
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a uniformly-locked sealed protection door with a transition threshold comprising a door fan, a door frame and locking mechanisms. The door frame is set in walls; the door fan is connected with the walls through hinges and can be closed into the door frame through the locking mechanisms; the door frame is symmetrical, effectively enhancing the strength of the structure, andcan be adapted to install two door fans where needed; a transition door frame is set at the lower part of the door frame to make up for the defects of complex structure and poor protection effect of existing door frames; uniform locking structure is used to make the door fan under uniform force and, together with horizontally moving hinges, make the door fan and the door frame parallel, effectively enhancing the sealing and protection effects; the uniform locking structure and the horizontally moving hinges working together also effectively avoid the situation where the door fan rebounds underimpact and causes damages to the hinges so the door cannot open; and two sets of seals are arranged between the door fan and the door frame to enhance the sealing effect. The invention has the advantages of good sealing and protection effects, stable and reliable overall structure, convenient installation and good locking effect.
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Description

technical field

[0001] The invention relates to the technical field of civil air defense equipment, in particular to the technical field of civil air defense doors, and in particular to a transitional threshold protection airtight door with uniform distribution and locking. Background technique

[0002] Airtight doors are used in the field of civil air defense engineering in order to protect and seal during wartime. However, when an explosion occurs, the door leaf of the existing airtight door will rebound, and the door leaf and the door frame will tend to separate, which may cause the door leaf to accept After the impact, it cannot be opened and cannot play the corresponding role. For safety and protection, multiple locking structures are often used, but they are generally arranged at intervals on the opening and closing sides of the door frame and door leaf, and generally not on the hinged side, resulting in uneven rebound force on the seal when the door leaf is closed. I...

Claims

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