JP3041842U - Lifesaving air duct structure of elevator by forced ventilation - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To supply fresh air to passengers in an elevator or evacuees at the entrance of an elevator in an emergency to improve the survival rate of the evacuees. An elevator entrance gate frame 1, an air supply pipe 2, a wind generator 3, and a heat isolation board set 4 are provided. Many air vents 111 are installed in the elevator entrance gate frame 1 and are connected to the air supply pipe 2. A wind generator 3 is installed at the bottom of the elevator hoistway, and fresh air taken from outside through a filter is forcibly sent to the front of the elevator entrance on each floor and into the elevator to supply non-toxic air to the evacuees.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to equipment for forcibly flowing fresh air into a hoistway of a building elevator. Particularly in an emergency, fresh air is supplied to passengers in the elevator or evacuees at the entrance of the elevator to improve the survival rate of the evacuees.

[0002]

[Prior art]

 The only conventional ventilation system used in a building elevator is a simple ventilation fan installed at the top of the elevator, and dirty air in the elevator hoistway flows into the elevator. Also, the elevator hoistway is installed inside the building, there is no passage for taking in outside air, and the air that passengers in the elevator breathe is the air circulating in the hoistway. The air gradually becomes dirty and becomes unsuitable for breathing. If you get inside the elevator and get trapped inside, you will not be able to get fresh air in the elevator after a while, and the trapped person will be frustrated and frightened because they breathe dirty air. You may feel strongly. In addition, in the event of a fire in the building, the evacuees naturally escape to the elevator entrance, but they are not supplied with fresh air, and the evacuees are smoked and may not be able to evacuate. is there.

[0003]

[Problems to be solved by the device]

 The main purpose of the present invention is to provide an elevator ventilation system with forced ventilation. Provide fresh air to passengers inside the elevator or at the entrance of the elevator as needed. In the event of a fire, fresh air will be supplied near the entrance of the elevator, helping rescue personnel to extinguish fire, maintaining fire extinguishing ability and not only protecting the life of fire personnel, but also reducing property loss. can do.

[0004]

Means for Solving the Problems The present invention mainly comprises an elevator entrance gate frame, an air supply pipe, a wind generator, and a heat insulation board set. Many air vents are installed in the elevator entrance gate frame and are connected to the air supply pipes. The wind generator is installed at the bottom of the elevator hoistway, and fresh air taken from outside through the filter is forced to be sent to the front of the elevator entrance on each floor and into the elevator. An air passage is formed between the elevator and the heat isolation board set, and an air layer is formed between the heat isolation board set and the hoistway wall surface. Then, forcibly sending air, forming pressurized air and air layer in the hoistway, supplying non-toxic air, preventing hot air from fire from entering the elevator, and saving life. To achieve.

[0005]

[Embodiment of the invention]

 1 to 3 show the structure of the present invention. The elevator entrance gate frame 1 has many ventilation holes or blinds 111 at appropriate places on the surrounding outer wall 11 adjacent to the elevator door D on each floor, and has a frame wall 12 connected to the inside of the outer wall 11, and There is a ventilation pipe 13 between the outer wall 11 and the frame wall 12, and the open portion of the ventilation pipe 13 is connected to the air supply pipe 2. The air supply pipe 2 is installed on the wall surface R1 of the hoistway R adjacent to the elevator entrance gate frame 1, and the air outlet 31 of the wind generator 3 connected to the bottom of the hoistway R faces the upper three directions. It extends and continues to the uppermost elevator entrance gate frame 1, and the air taken in flows into the ventilation pipe 13, the ventilation path 43, and the air layer 44 of the elevator entrance gate frame on each floor. Vents or blinds 111 in the outer wall 11 of each gate frame provide fresh air. As shown in FIG. 1, a filter 33 is attached to the air inlet 32 of the wind generator 3 and extends to the outside of the room. This allows fresh air to be taken in and provided to passengers in the elevator or in front of the elevator entrance. The wind generator 3 is equipped with a pressure adjusting opening / closing gate 21 on a distribution pipe. As a power source, public power is usually used directly and stored in a battery at the same time. When the power supply from the outside is cut off, the battery or generator automatically supplies the power. Alternatively, as shown in FIG. 4, the engine can be connected to one or more powerful blowers (B) of a fire engine. An annular brim tube B1 can be set at the air inlet on the wall and installed on a movable hanging tube ring B2 to provide the necessary air insertion equipment. The facility is similar to one or more fire water valves.

The thermal insulation board set 4 is configured by combining the boards 41 of each paragraph, and each board 41 is composed of several fire protection boards 411 combined and further connected to several support boards. Fix it at a suitable place on the wall R1 of the elevator hoistway that does not hinder the elevator E from moving up and down. The heat insulation board set 4 wraps the outside of the elevator E at an appropriate distance, and forcibly sends out air from the air supply pipe 2 connected to the wind generator 3 at the bottom of the hoistway R. A ventilation path 43 is formed between the elevator E and the heat insulation board set 4, and an air layer 44 is formed by the heat insulation board set 4 and the elevator hoistway wall surface R1. The upper part extends below the floor of the elevator machine room. A transparent safety glass viewing window D1 is installed at an appropriate place on the door D on each floor of the elevator. A peep window E2 is also installed at the same location on the door E1 of the elevator E. Blinds E4 with fixed outlet angles are installed at appropriate positions on the three wall surfaces E3 of the elevator to send out air, and a ventilator E5 is installed above the elevator to suck in air.

When using the present invention, the wind generator 3 takes in filtered air from the outside and sends fresh air through the air supply pipe 2 to the elevator entrance gate frame 1 and the air passage 43 of each floor. It typically supplies elevator passengers with fresh air. Fresh air is forced out into the air passage 43. Air is taken in from the ventilation device E5 above the elevator E, and air is sent out from the blind E4 on the elevator wall E3. When a fire occurs, fresh air sent from the wind generator 4 can be supplied from the elevator entrance gate frame 1 to save lives on a floor with a high smoke density. In addition, air can be supplied to evacuees escaping from the upper floor to the lower floor. Air is forced out of the hoistway R, and pressurized air is formed, which can prevent hot air generated by a fire from flowing into the hoistway R, and the thermal insulation board set. 4 and the hoistway wall R1 prevent the hot air from flowing into the elevator E, and increase the survival rate of passengers in the elevator.

[0008]

[Effect of the invention]

 The present invention can supply fresh air to passengers inside the elevator and passengers waiting at the elevator entrance on each floor. Furthermore, the elevator surrounded by the air layer and the heat isolation board set blocks the inflow of hot air in the event of a fire, and supplies fresh air from the bottom of the hoistway to the passengers inside the elevator. Furthermore, when fire fighters perform fire fighting work, the fire fighting ability and fire fighting time can be extended to improve fire fighting efficiency, protect the life of fire fighters, and reduce property loss.

[Brief description of the drawings]

FIG. 1 is an external view for explaining the present invention in use.

FIG. 2 is an explanatory view of a horizontal section of the present invention.

FIG. 3 is a vertical cross-sectional explanatory view of the present invention.

FIG. 4 is an explanatory view of the connection between the present invention and a fire engine.

[Explanation of symbols]

 (1) Elevator entrance gate frame (11) Surrounding outer wall (111) Vent or blind (12) Frame wall (13) Vent pipe (2) Air supply pipe (21) Pressure control gate (3) Air supply device (31) ) Air outlet (32) Air inlet (33) Filter (4) Thermal insulation board set (41) Board (411) Fire protection board (42) Support board (43) Ventilation path (44) Air layer

Claims (3)

[Utility model registration claims] 1. A large number of ventilation holes or blinds are installed in a peripheral outer wall adjacent to an elevator door on each floor, and a frame wall is connected to the inside of the outer wall, and a ventilation pipe is provided between the outer wall and the frame wall. , Elevator entrance gate frame connected to each ventilation hole or blind, installed from the bottom of the elevator hoistway to the hoistway wall adjacent to the elevator entrance gate frame, and connected to the ventilation pipe of the elevator entrance gate frame on each floor, The upper part is installed up to the top elevator entrance gate frame, an air supply pipe with several ventilation holes, adjacent to the elevator hoistway bottom part, a filter is attached to the air inlet installed outside the room, and the air outlet is It consists of a wind generator connected to the supply pipe and a thermal insulation board set composed of several boards. It is installed in a place away from the elevator so that it does not hinder the lifting and lowering of the elevator, and wraps up the elevator to form a ventilation path between the elevator and the thermal insulation board set. In layers, the bottom is connected to the wind generator at the bottom of the hoistway, the air is forced through many vents of the air supply pipe, and the top extends below the floor of the elevator machine room. A life-saving air-feeding structure for an elevator with forced ventilation, which wraps around the elevator track and supplies fresh air near the elevator entrance and on each floor regardless of normal times or in the event of a fire. 2. Each board of the thermal insulation board set is a combination of several fireproof boards and is connected to several support boards, and is fixed to the wall surface of the hoistway that does not hinder the lifting and lowering of the elevator. A lifesaving air duct structure for an elevator using forced ventilation according to claim 1. 3. A transparent peephole is installed at the same location on the elevator door and the door on each floor, a blind is installed on each wall of the elevator, and a blind on each wall when the ventilation system above the elevator inhales air. Through, take in the fresh air of the ventilation path between the elevator and the thermal insulation board set, and provide it to the breathing of passengers in the elevator.
A lifesaving air duct structure for an elevator using forced ventilation according to claim 1.