Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Slow descending structure of extension ladder
The invention belongs to the technical field of extension ladders, and particularly relates to an extension ladder slow descending structure which comprises a first ladder frame and a second ladder frame telescopically arranged on the inner periphery of the first ladder frame, a first cavity is formed in the first ladder frame, a second cavity is formed in the second ladder frame, a sealing cover is installed at an opening in the lower end of the second ladder frame, and an air passing hole is formed in the sealing cover. The first cavity communicates with the second cavity through an air passing hole, a mounting base is arranged on the end face of the air passing hole, a slow descending block capable of moving up and down is arranged in the mounting base, a plurality of first through holes are formed in the slow descending block, a plurality of second through holes are formed in the side face of the mounting base, and an opening is formed in the lower end of the mounting base. The descending speed of the ladder frame can be reduced, the slow descending function is achieved, and therefore the safety performance of the extension ladder is improved.
本发明属于伸缩梯技术领域，具体涉及一种伸缩梯缓降结构，包括梯架一和可伸缩设置在其内周的梯架二，梯架一内成型有空腔一，梯架二内成型有空腔二，梯架二的下端开口处安装有封盖，封盖内开设有过气孔，空腔一通过过气孔与空腔二相连通，过气孔的端面设置有安装座，安装座内设置有可上下移动的缓降块，缓降块内开设有若干个通孔一，安装座的侧面开设有若干个通孔二，安装座的下端成型有开口，本发明通过缓降块的设计，能够减缓梯架的下降速度，实现缓降功能，从而提高伸缩梯的安全性能。
Slow descending structure of extension ladder
The invention belongs to the technical field of extension ladders, and particularly relates to an extension ladder slow descending structure which comprises a first ladder frame and a second ladder frame telescopically arranged on the inner periphery of the first ladder frame, a first cavity is formed in the first ladder frame, a second cavity is formed in the second ladder frame, a sealing cover is installed at an opening in the lower end of the second ladder frame, and an air passing hole is formed in the sealing cover. The first cavity communicates with the second cavity through an air passing hole, a mounting base is arranged on the end face of the air passing hole, a slow descending block capable of moving up and down is arranged in the mounting base, a plurality of first through holes are formed in the slow descending block, a plurality of second through holes are formed in the side face of the mounting base, and an opening is formed in the lower end of the mounting base. The descending speed of the ladder frame can be reduced, the slow descending function is achieved, and therefore the safety performance of the extension ladder is improved.
本发明属于伸缩梯技术领域，具体涉及一种伸缩梯缓降结构，包括梯架一和可伸缩设置在其内周的梯架二，梯架一内成型有空腔一，梯架二内成型有空腔二，梯架二的下端开口处安装有封盖，封盖内开设有过气孔，空腔一通过过气孔与空腔二相连通，过气孔的端面设置有安装座，安装座内设置有可上下移动的缓降块，缓降块内开设有若干个通孔一，安装座的侧面开设有若干个通孔二，安装座的下端成型有开口，本发明通过缓降块的设计，能够减缓梯架的下降速度，实现缓降功能，从而提高伸缩梯的安全性能。
Slow descending structure of extension ladder
一种伸缩梯缓降结构
XIANG CHEN (Autor:in)
01.11.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E06C
LADDERS
,
Leitern
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