The invention provides an emergency fire-fighting device for an elevator car, which belongs to the field of elevators and comprises an air supply pipe, a fan, a conveying pipe and an air inducing cavity. Wherein the conveying pipe is provided with a plurality of air holes communicated with the air inducing cavity in the height direction, a pressure valve is arranged in each air hole, the air inlet end of the fan is connected with a compensation pipe corresponding to the air holes in position, and the compensation pipe has an extending state and a contracting state. When the elevator car moves up and down along the elevator shaft, the compensation pipe at the air inlet end of the fan moves along the air hole distribution path in the conveying pipe all the time, and when the compensation pipe is in the stretching state, the air holes in the corresponding positions are covered with the compensation pipe, so that the fan can communicate with the air inducing cavity at any height, and the air inducing cavity is communicated with the air outlet. When the elevator is in an emergency state, fresh air outside the elevator shaft is extracted and conveyed into the elevator car, air in the elevator shaft cannot enter the air inducing cavity due to the fact that the pressure valve is arranged in the air hole which is not covered by the compensation pipe, and the quality of the air in the elevator car is guaranteed when the elevator is in the emergency state.
本发明提供一种电梯轿厢应急消防装置,属于电梯领域,包括:送风管、风机、输送管和引风腔。其中,所述输送管沿高度方向设有多个与所述引风腔连通的风孔,所述风孔内均设有压力阀,所述风机的进气端连接有位置与所述风孔对应的补偿管,所述补偿管设有伸展状态和收缩状态。在电梯轿厢沿电梯井上下运行时,风机进气端的补偿管始终沿输送管上的风孔分布路径移动,当所述补偿管处于伸展状态时,相应位置的所述风孔被所述补偿管覆盖,使得风机能够在任意高度与引风腔连通,抽取电梯井外侧的新鲜空气向电梯轿厢内输送,而未被补偿管覆盖的风孔内由于设置了压力阀,电梯井内的空气则无法进入引风腔,保证电梯在处于紧急状态时,电梯轿厢内的空气质量。
Emergency fire protection device for elevator car
一种电梯轿厢应急消防装置
2025-02-14
Patent
Electronic Resource
Chinese
IPC: | B66B Aufzüge , ELEVATORS |