Emergency evacuation device for subway station

Abstract

The invention relates to the technical field of emergency evacuation, and particularly discloses a subway station emergency evacuation device which is characterized in that fresh air pipes are arranged on walls on the two sides of an emergency channel, the fresh air pipes can move up and down along the walls, a plurality of fresh air holes are formed in the fresh air pipes, one end of each fresh air pipe is connected with a fresh air supply fan, and lifting devices are arranged on the walls; the lifting device is used for driving the fresh air pipe to move vertically. The emergency evacuation device for the subway station has the beneficial effects that the fresh air pipe is lowered to the head position of an escape person through the lifting device, so that fresh air comes out and is located near the mouth or nose of the escape person, and the escape person can fully utilize the fresh air; the situation that fresh air cannot be used after being neutralized by smoke is avoided; by arranging the breathing masks, fresh air in the fresh air pipe can be fully utilized, so that the situation that the fresh air cannot be used after being neutralized by the smoke is further avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of emergency evacuation, and in particular to an emergency evacuation device for a subway station. Background Art

[0002] Subway stations are crowded places. Once a fire occurs, if the fire smoke cannot be discharged in a timely and effective manner and the fire cannot be controlled, it is very likely to cause mass casualties and injuries. Therefore, current subway underground station projects are all designed with ventilation and smoke exhaust systems to be used to promptly and effectively discharge the fire smoke from the station, minimizing casualties and property losses caused by the fire smoke. At the same time, fresh air needs to be supplied to the station to provide fresh air for people to breathe. However, the position of the fresh air inlet in the existing technology is fixed, usually set at the top of the emergency passage. When a fire occurs, the fresh air sent in by the fresh air system still needs a certain amount of time to reach the heads of the escaping people. In addition, when the smoke in the emergency passage is too large, the fresh air will be mixed with the smoke immediately after it is sent in, making it difficult for the escaping people to breathe in the passage. Summary of the Invention

[0003] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an emergency evacuation device for a subway station.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A subway station emergency evacuation device is provided with fresh air ducts on the walls on both sides of the emergency passage. The fresh air ducts can move up and down along the walls. The fresh air ducts are provided with multiple fresh air holes. One end of the fresh air ducts is connected to a fresh air fan. A lifting device is provided on the wall to drive the fresh air ducts to move up and down.

[0006] Preferably, a plurality of vertical sliding grooves are provided on the walls on both sides of the emergency passage, a slider is slidably connected in each sliding groove, and the multiple sliders are fixedly connected to the fresh air duct.

[0007] Preferably, a plurality of mounting sleeves are fixedly sleeved on the outer side of the fresh air duct, and the mounting sleeves are arranged in a one-to-one correspondence with the sliders.

[0008] Preferably, an opening is provided on the side wall of the fresh air duct, and elastic strips are fixedly connected to both sides of the opening. When the elastic strips are in a free state, the two elastic strips contact each other to block the opening.

[0009] The subway station emergency evacuation device also includes a breathing mask, which is connected to a conical tube through an air tube. The conical tube is arranged in the fresh air duct, and the air tube passes between two elastic rubber strips.

[0010] Preferably, the trachea is an elastic tube.

[0011] Preferably, the trachea is a hose, the tapered tube is made of metal material, and the end of the tapered tube with a smaller diameter is connected to the trachea.

[0012] Beneficial effects of the present invention: The subway station emergency evacuation device provided by the present invention lowers the fresh air duct to the head position of the escaping person through a lifting device, so that the fresh air is located near the mouth or nose of the escaping person, and the escaping person can make full use of the fresh air to avoid the fresh air being neutralized by smoke and becoming unusable; by providing multiple breathing masks, the fresh air in the fresh air duct can be fully utilized, thereby further avoiding the fresh air being neutralized by smoke and becoming unusable. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a basic structural diagram of a subway station emergency evacuation device provided by the present invention;

[0014] Figure 2 yes Figure 1 Usage status diagram;

[0015] Figure 3 This is the basic structural diagram of the new air duct;

[0016] Figure 4 This is a basic structural diagram of Example 1;

[0017] Figure 5 yes Figure 4 sectional view of

[0018] Figure 6 This is a basic structural diagram of Example 2;

[0019] Figure 7 yes Figure 6 sectional view of . DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] Example 1

[0022] like Figure 1-Figure 3As shown, a subway station emergency evacuation device of this embodiment has a fresh air duct 1 provided on the wall 200 on both sides of the emergency passage 100. The fresh air duct 1 can move up and down along the wall 200. A plurality of vertical sliding grooves 300 are provided on the wall 200 on both sides of the emergency passage 100. A slider is slidably connected in each sliding groove 300, and the fresh air duct 1 is fixedly connected to the plurality of sliders. A plurality of mounting sleeves 400 are fixedly sleeved on the outer side of the fresh air duct 1. The mounting sleeves 400 are arranged and fixed together with the sliders in a one-to-one correspondence. A lifting device is provided on the wall 200. The lifting device is used to drive the slider to slide along the sliding groove 300, so that the fresh air duct 1 can move downward. The lifting device is a prior art and will not be described in detail here. A plurality of fresh air holes 11 are provided on the fresh air duct 1, and one end of the fresh air duct 1 is connected to the fresh air blower through a flexible connecting pipe.

[0023] In the event of a sudden fire, a subway station emergency evacuation device according to this embodiment uses a fresh air blower to supply fresh air to the fresh air duct 1. The fresh air enters the emergency passage 100 from the fresh air hole 11, so that the escaping personnel have sufficient air to breathe. The fresh air duct 1 is lowered to the head position of the escaping personnel by a lifting device, so that the fresh air is located near the mouth or nose of the escaping personnel. The escaping personnel can make full use of the fresh air and avoid the fresh air being neutralized by the smoke and becoming unusable. At the same time, the lifting device can enable the fresh air duct 1 to continuously move up and down within a certain height range, so that it can be used by escaping personnel of different heights. In a normal safe state, the fresh air duct 1 is raised to avoid affecting the normal passage of passengers.

[0024] To further prevent fresh air from being neutralized by smoke and becoming unusable, an opening is provided on the sidewall of the fresh air duct 1. Elastic strips 3 are fixedly connected to both sides of the opening. When the elastic strips 3 are free, the two elastic strips 3 contact, thereby blocking the opening. The subway station emergency evacuation device also includes a breathing mask 2, which is connected to a tapered tube 22 via an air duct 21. The tapered tube 22 is disposed within the fresh air duct 1, and the air duct 21 passes between the two elastic strips 3. The air duct 21 is an elastic tube. During use, multiple breathing masks 2 are provided and positioned at the entrance of the emergency passage 100. When necessary, an evacuee can pull the breathing masks 2 in sequence and put them on their face. As they run forward, the tapered tube 22 located within the fresh air duct 1 also moves within the tapered tube 22. This allows the evacuee to escape while wearing the breathing mask 2, fully utilizing the fresh air within the fresh air duct 1 and further preventing the fresh air from being neutralized by smoke and becoming unusable.

[0025] Example 2

[0026] The difference between this embodiment and the first embodiment is that multiple breathing masks 2 are evenly distributed on the fresh air duct 1. This allows breathing masks 2 to be installed at any location within the emergency passage 100. In this way, when escaping from the middle of the emergency passage 100 and experiencing breathing difficulties, the breathing masks 2 in the front will inevitably affect the forward movement of the breathing masks 2 in the back. To this end, the present application uses the trachea 21 as a hose and the tapered tube 22 as a metal material. This makes the tapered tube 22 heavier and acts as a weight block. In a free state, the tapered tube 22 falls to the bottom of the fresh air duct 1, and the smaller end of the tapered tube 22 is connected to the trachea 21. The diameter of the smaller end of the tapered tube 22 is smaller than the width of the opening, while the diameter of the larger end of the tapered tube 22 is larger than the width of the opening. When the breathing mask 2 needs to pass over the breathing mask 2 in front, the escapee pulls the breathing mask 2 hard, the conical tube 22 moves upward, and the smaller end of the conical tube 22 squeezes into the opening, so that the two elastic strips 3 can be stretched open, and when moving forward, it can easily pass over the trachea 21 of the breathing mask 2 in front.

Claims

1. A subway station emergency evacuation device, characterized by: Fresh air ducts (1) are provided on the walls (200) on both sides of the emergency passage (100). The fresh air ducts (1) can move up and down along the walls (200). The fresh air ducts (1) are provided with a plurality of fresh air holes (11). One end of the fresh air duct (1) is connected to a fresh air blower. A lifting device is provided on the wall (200) for driving the fresh air duct (1) to move up and down.

2. The subway station emergency evacuation device according to claim 1, characterized in that: A plurality of vertical sliding grooves (300) are provided on the walls (200) on both sides of the emergency passage (100), a sliding block is slidably connected in each sliding groove (300), and a plurality of sliding blocks are fixedly connected to a fresh air duct (1).

3. The subway station emergency evacuation device according to claim 2, characterized in that: A plurality of mounting sleeves (400) are sleeved and fixed on the outside of the fresh air duct (1), and the mounting sleeves (400) are arranged in a one-to-one correspondence with the sliders.

4. The subway station emergency evacuation device according to claim 1, characterized in that: An opening is provided on the side wall of the fresh air duct (1), and elastic rubber strips (3) are fixedly connected to both sides of the opening. When the elastic rubber strips (3) are in a free state, the two elastic rubber strips (3) contact each other to block the opening; The subway station emergency evacuation device further comprises a breathing mask (2), wherein the breathing mask (2) is connected to a conical tube (22) via an air pipe (21), the conical tube (22) is arranged in the fresh air pipe (1), and the air pipe (21) passes between two elastic rubber strips (3).

5. The subway station emergency evacuation device according to claim 4, characterized in that: The trachea (21) is an elastic tube.

6. The subway station emergency evacuation device according to claim 4, characterized in that: The trachea (21) is a flexible pipe, the tapered tube (22) is made of metal material, and the end of the tapered tube (22) with a smaller diameter is connected to the trachea (21).

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