Embedded Door Protecting Device for Pinch Prevention
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Solution Overview
Problem
Existing door protecting devices externally mounted on top of the door sheet cause unbalanced stress, leading to reduced durability and service life, and pose risks of accidental injury due to gaps between the door and frame.
Innovation Solution
An embedded protecting device comprising a door sheet, door frame, elastic sheet/column, and clamped boards forming a hollow area with bearings to reduce friction and prevent pinching, while eliminating unbalanced forces and extending service life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If an external protecting device is mounted on top of the door sheet, then the door can be fixed at a specific position when opened, but unbalanced stress is caused and the service life of the door is shortened
Solution Approach 1:
The protecting device is merged with the door structure by embedding it within the door sheet thickness. The first and second clamped boards are fixedly connected to the inner side of the door frame, forming a hollow area that contains the elastic sheet/column, integrating the protecting function into the door's internal structure rather than mounting it externally.
Solution Approach 2:
The elastic sheet or column is nested within the hollow area formed by the clamped boards and door frame. This nested configuration allows the protecting device to be contained within the door structure, eliminating external mounting and the associated unbalanced stress while maintaining the door positioning function.
2Ease of operation
If an external protecting device is mounted on the door, then the door can be fixed when opened, but the protecting device has poor durability due to structural particularity
Solution Approach 1:
The protecting device components (clamped boards, elastic sheet/column) are merged into a unified embedded structure within the door. This integration provides structural support from the door frame and clamped boards, enhancing the durability and reliability of the protecting device compared to external mounting configurations.
3Object-affected harmful factors
If an outer door gap protecting device is installed, then gaps between door and frame can be protected, but gaps may still be produced and the door structure is affected
Solution Approach 1:
The elastic sheet or column is nested within the hollow area formed by the clamped boards, creating an integrated gap protection system. This nested configuration ensures that the protecting device becomes part of the door structure rather than an external addition, maintaining structural integrity while preventing pinching in the gaps between door and frame.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The embedded design prevents accidental pinching, reduces friction, prolongs the service life of both the door and the protecting device, and facilitates easy door operation by guiding the elastic components and reducing abrasion.
Implementation Method 1
The door further comprises an elastic sheet and/or an elastic column, and one end of the elastic sheet and/or the elastic column is fixedly connected with the inner side of a vertical frame
Implementation Method 2
the door comprises a bearing, wherein the inner ring of the bearing is fixed on the first clamped board through a fixing device which comprises a bolt
Data Source
AI summary
The invention belongs to the technical field of closing devices, and particularly relates to a door with an embedded protecting device. The invention aims at providing a door enabling the service life of the door and the protecting device to be prolonged. To solve the above problem, according to the technical scheme, the door with the embedded protecting device comprises a door sheet and a door frame, wherein the door sheet is connected with the door frame through hinges. The door further comprises an elastic sheet and/or an elastic column, and one end of the elastic sheet and/or the elastic column is fixedly connected with the inner side of a vertical frame. A first clamped board and a second clamped board are also arranged inside the door sheet, and the first clamped board and the second clamped board are fixedly connected with the inner side of the door frame to form a hollow area which matches with the elastic sheet and/or the elastic column. The hollow area further includes an opening and a bottom which are positioned on different sides inside the door sheet, and the elastic sheet and/or the elastic column extend/extends into the hollow area from the opening.