Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
A hand-push protective frame forms a framework through a top cover, stand columns, an upper pulling bar, a lower pulling bar and bracket devices, wherein the top cover is arranged on the stand columns, springs and ejector rods are installed in the bracket devices, wheels are installed on the lower portions of the bracket devices, and side piers are fixed to the lower portions of the stand columns and supported by the ejector rods of the bracket devices. The protective frame can travel forward when an operator pushes two stand columns by hand in the framework. In the earthquake period, the protective frame can be used for performing patrol, rescue and operation on the two sides of a street where many high-rise buildings exist and weights fall off frequently or performing patrol operation in a tunnel where collapse danger exists and performing rescuing and other operations on a hall and the first floor of a workshop in fires. Once the weights fall off, the weights are blocked by the top cover of the framework, the stand columns are pressed down by the top cover, the side piers on the stand columns press the ejector rods and the springs, and foot piers at the lower ends of the stand columns are down to the ground. The inertia and the weight of the weights are borne by the ground, at the moment, there is still a proper distance between the top cover and the head of a person, and the operator can be free of injuries. The device can be used as a mobile sentry box in the earthquake period.
A hand-push protective frame forms a framework through a top cover, stand columns, an upper pulling bar, a lower pulling bar and bracket devices, wherein the top cover is arranged on the stand columns, springs and ejector rods are installed in the bracket devices, wheels are installed on the lower portions of the bracket devices, and side piers are fixed to the lower portions of the stand columns and supported by the ejector rods of the bracket devices. The protective frame can travel forward when an operator pushes two stand columns by hand in the framework. In the earthquake period, the protective frame can be used for performing patrol, rescue and operation on the two sides of a street where many high-rise buildings exist and weights fall off frequently or performing patrol operation in a tunnel where collapse danger exists and performing rescuing and other operations on a hall and the first floor of a workshop in fires. Once the weights fall off, the weights are blocked by the top cover of the framework, the stand columns are pressed down by the top cover, the side piers on the stand columns press the ejector rods and the springs, and foot piers at the lower ends of the stand columns are down to the ground. The inertia and the weight of the weights are borne by the ground, at the moment, there is still a proper distance between the top cover and the head of a person, and the operator can be free of injuries. The device can be used as a mobile sentry box in the earthquake period.