Auxiliary safety ladder for subway escape door

Abstract

The utility model provides a subway escape door auxiliary safety ladder which is an automatic telescopic safety ladder, the automatic telescopic safety ladder is installed below safety doors at the front end and the rear end of a subway, the automatic telescopic safety ladder is provided with a U-shaped frame body, and a fixed connecting rod is installed in the U-shaped frame body. A pedal is installed on the fixed connecting rod, a pedal shaft is arranged on the edge of the pedal, connecting rods are installed on the two sides of the pedal shaft and connected with the pedal shaft through hinges, a telescopic connecting rod is installed on the rear side of the lower portion, where the pedal is installed, of the U-shaped frame body, and one end of the telescopic connecting rod is connected with the pedal. The other end of the pedal is connected with the telescopic end of the telescopic motor, the telescopic motor is installed on the rear side of the U-shaped frame body, the pedal is unfolded and folded through movement of the telescopic motor, and the functions of building an evacuation channel and storing are automatically achieved; when a subway operation fault occurs, a rapid evacuation channel is built for passengers.

Description

Technical Field

[0001] The utility model relates to the technical field of safety equipment, in particular to an auxiliary safety ladder for subway escape doors. Background Art

[0002] In large and medium-sized cities, the subway has become an important means of transportation. Its safety, speed, stability and comfort are very popular among people. However, subways are often built underground, and their operating range is generally a closed tunnel. The subway carries a large number of passengers. Therefore, if a failure occurs during the operation of the subway, how to quickly evacuate the passengers is an important consideration. Due to the structural characteristics of the subway, there is a certain height between the passenger carrying surface and the subway track plane, and the track it runs on is a closed tunnel. Therefore, when evacuating passengers from the subway, it is generally chosen to do so from the front and rear ends of the vehicle. However, there is a certain height difference between the passenger carrying surface and the subway track plane, which can easily cause accidents during evacuation. Therefore, it is particularly important to build a fast passage between the passenger carrying surface and the track plane, and the passage cannot affect the normal operation of the subway when the subway is running. For this reason, the applicant designed and manufactured a subway escape door auxiliary safety ladder based on this demand of subway operation, which can quickly build a safe passage for the subway when a subway failure occurs, ensuring the safety of evacuated passengers. Summary of the Invention

[0003] To solve the above technical problems, the present invention proposes an auxiliary safety ladder for subway escape doors. By installing safety doors at the front and rear ends of the subway, an automatic retractable safety ladder is installed under the safety doors. The automatic retractable safety ladder is deployed and folded by the movement of a telescopic motor, automatically realizing the functions of building an evacuation passage and storing it. In the event of a subway malfunction, a rapid evacuation passage is built for passengers to ensure their safety.

[0004] To achieve the above object, the technical solution adopted by the present invention is:

[0005] An auxiliary safety ladder for subway escape doors comprises a safety door and an automatic retractable safety ladder, and is characterized in that: the safety door is installed at the front and rear ends of the subway, and the automatic retractable safety ladder is installed below the safety door. When the automatic retractable safety ladder is retracted, it is completely stored inside the front of the subway below the safety door. When the automatic retractable safety ladder is deployed, a staircase or flat-plate safety passage is built in front of the safety door.

[0006] Furthermore, the subway escape door auxiliary safety ladder is provided with an automatic telescopic safety ladder, and the automatic telescopic safety ladder is provided with a U-shaped frame, and three sets of fixed connecting rods are installed inside the U-shaped frame, and a pedal is installed on the fixed connecting rod, and a pedal shaft is provided in front and behind the pedal, and connecting rods are installed on both sides of the pedal shaft. The connecting rods are fixed to both sides of the pedal through hinges, and a telescopic connecting rod is installed on the rear side of the pedal at the lower part of the pedal installed inside the U-shaped frame, one end of the telescopic connecting rod is connected to the rear end of the pedal, and the other end of the telescopic connecting rod is connected to the telescopic end of the telescopic motor, and the telescopic motor is installed at the bottom of the U-shaped frame, and the bottom of the U-shaped frame is provided with mounting screw holes, and the automatic telescopic safety ladder is installed and fixed to the subway through the mounting screw holes.

[0007] Furthermore, a pedal is provided on the automatic telescopic safety ladder, a pedal shaft is provided in front and behind the pedal, connecting rods are installed on both sides of the pedal shaft, the connecting rods are fixed to both sides of the pedal by hinges, the middle part of the connecting rod is connected to the middle part of the pedal by a hinge, and the connecting rod and the pedal form a parallelogram support structure.

[0008] Furthermore, there are at least three pedals.

[0009] The utility model provides a subway escape door auxiliary safety ladder. By installing safety doors at the front and rear ends of the subway, an automatic retractable safety ladder is installed below the safety doors. The automatic retractable safety ladder is automatically unfolded and folded by the movement of a telescopic motor, automatically achieving the functions of building an evacuation passage and storing it. In the event of a subway malfunction, a rapid evacuation passage is built for passengers, ensuring their safety. The benefits brought are:

[0010] 1. The auxiliary safety ladder for subway escape doors is small in size and can be easily installed under the subway's emergency door without affecting the operation of the subway.

[0011] 2. The auxiliary safety ladder for subway escape doors can quickly build stairs or flat gentle slope passages through its own structure and the movement of the telescopic motor, and has strong applicability.

[0012] 3. The auxiliary safety ladder for subway escape doors can adjust the number of pedals installed according to the height of different subway vehicles to meet the installation needs of different subways. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the local structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the contraction structure of the utility model;

[0016] Figure 4This is a schematic diagram of the semi-expanded structure of the utility model;

[0017] Figure 5 It is a schematic diagram of the fully expanded structure of the utility model.

[0018] The markings in the figure are: 1. Subway; 2. Safety door; 3. Automatic telescopic safety ladder; 4. Mounting screw holes; 5. Telescopic motor; 6. Telescopic connecting rod; 7. Connecting rod; 8. Hinge; 9. Pedal shaft; 10. Pedal; 11. Fixed connecting rod; 12. U-shaped frame. DETAILED DESCRIPTION

[0019] The present invention is described in further detail below with reference to the accompanying drawings and specific embodiments:

[0020] like Figure 1 Shown: Shown is a subway escape door auxiliary safety ladder, including a safety door 2 and an automatic retractable safety ladder 3, characterized in that: the safety door 2 is installed at the front and rear ends of the subway 1, and the automatic retractable safety ladder 3 is installed below the safety door 2. When the automatic retractable safety ladder 3 is retracted, it is completely stored inside the front of the subway 1 below the safety door 2. When the automatic retractable safety ladder 3 is unfolded, a step or flat-plate safety passage is built in front of the safety door 2. The automatic retractable safety ladder 3 is automatically controlled by electric energy.

[0021] As shown in FIG2 , the auxiliary safety ladder of the subway escape door is provided with an automatic telescopic safety ladder 3. The automatic telescopic safety ladder 3 is provided with a U-shaped frame 12. The U-shaped frame 12 is made of steel. Three sets of fixed connecting rods 11 are installed inside the U-shaped frame 12. A pedal 10 is installed on the fixed connecting rod 11. Pedal shafts 9 are set in front and behind the pedal 10. Connecting rods 7 are installed on both sides of the pedal shaft 9. The connecting rods 7 are fixed to both sides of the pedal 10 by hinges 8. The upper surface of the pedal 10 is provided with anti-slip measures. The rear side of the pedal 10 at the lower part of the internally installed pedal 10 of the U-shaped frame 12 is installed. One end of the telescopic connecting rod 6 is connected to the rear end of the pedal 10, and the other end of the telescopic connecting rod 6 is connected to the telescopic end of the telescopic motor 5. The telescopic motor 5 is installed at the bottom of the U-shaped frame 12. The bottom of the U-shaped frame 12 is provided with mounting screw holes 4. The automatic telescopic safety ladder 3 is installed and fixed to the subway 1 through the mounting screw holes 4.

[0022] like Figure 2-Figure 5As shown, a pedal 10 is provided on the automatic telescopic safety ladder 3, and pedal shafts 9 are provided in front and behind the pedal 10. Connecting rods 7 are installed on both sides of the pedal shaft 9. The middle part of the connecting rod 7 is connected to the middle part of the pedal 10 by a hinge 8. The connecting rod 7 and the pedal 10 form a parallelogram support structure. The movement of the telescopic motor 5 drives the connecting rod 6 to move, so that the parallelogram support structure formed by the connecting rod 7 and the pedal 10 changes to form different states. As shown in the figure, it is a fully retracted state. When the subway is running, it can be placed under the safety door without affecting the operation of the subway. If a failure occurs in the subway and passengers need to be evacuated safely, the telescopic motor moves to expand. Figure 4 、 Figure 5 Evacuate quickly in the state of Figure 4 In a semi-extended state, it forms a stepped evacuation passage, which can be used for the evacuation of a small number of passengers; Figure 5 The fully extended state forms a gentle flat surface and can be used for the rapid evacuation of a large number of passengers. The auxiliary safety ladder for the iron escape door shown is small in size and can be easily installed under the emergency door of the subway. It is easy to extend and retract, easy to install, and highly applicable.

[0023] The above description is merely a preferred embodiment of the present invention and does not constitute any other form of limitation to the present invention. Any modification or equivalent variation based on the technical essence of the present invention shall still fall within the scope of protection claimed by the present invention.

Claims

1. A subway escape door auxiliary safety ladder, comprising a safety door (2) and an automatic telescopic safety ladder (3), characterized in that: The safety door (2) is installed at the front and rear ends of the subway (1), and the automatic telescopic safety ladder (3) is installed below the safety door (2). When the automatic telescopic safety ladder (3) is retracted, it is completely stored inside the front of the subway (1) below the safety door (2). When the automatic telescopic safety ladder (3) is deployed, a step or flat-plate safety passage is built in front of the safety door (2).

2. The subway escape door auxiliary safety ladder according to claim 1, characterized in that: The automatic telescopic safety ladder (3) is provided with a U-shaped frame (12), three sets of fixed connecting rods (11) are installed inside the U-shaped frame (12), a pedal (10) is installed on the fixed connecting rod (11), a pedal shaft (9) is provided at the front and rear of the pedal (10), connecting rods (7) are installed on both sides of the pedal shaft (9), the connecting rods (7) are fixed to both sides of the pedal (10) through hinges (8), the connecting rods (7) and the pedal (10) form a parallelogram support structure, and the U-shaped frame A telescopic connecting rod (6) is installed on the rear side of the pedal (10) at the lower part of the internally installed pedal (10) installed on the (12), one end of the telescopic connecting rod (6) is connected to the rear end of the pedal (10), and the other end of the telescopic connecting rod (6) is connected to the telescopic end of the telescopic motor (5), and the telescopic motor (5) is installed at the bottom of the U-shaped frame (12). The bottom of the U-shaped frame (12) is provided with a mounting screw hole (4), and the automatic telescopic safety ladder (3) is mounted and fixed to the subway (1) through the mounting screw hole (4).

3. The auxiliary safety ladder for subway escape doors according to claim 2, characterized in that: There are at least three pedals (10).

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