Emergency access for a raised spectator stand

Abstract

An emergency passage for lifting audience seating, relating to the field of stage fire escape technology, includes an outer ring fixed passage and an inner lifting audience seating area. The outer ring fixed passage has a multi-layered structure distributed vertically. The lifting audience seating area includes a steel frame. An emergency ramp passage, a lifting transition platform, and a lifting power assembly are provided between the outer ring fixed passage and the steel frame. The lifting transition platform includes a platform passage and a platform support below it. The lifting power assembly includes a power unit located below the emergency ramp passage, which is connected to the lower part of the platform support via a traction rope. In an emergency, the emergency ramp passage of this invention can connect the audience seating area and the outer ring fixed passage, and the passage's direction is adjustable, allowing audience members in the seating area to access different levels of the outer ring fixed passage, facilitating better audience evacuation and improving safety.

Description

Technical Field

[0001] This utility model relates to the field of stage fire escape technology, and in particular to an emergency escape route for raising and lowering audience seating. Background Technology

[0002] As living standards continue to improve, more and more people are watching stage performances. To ensure the safety of audiences at performance venues, escape routes are provided in all seating areas.

[0003] However, in existing venues, whether they are ordinary fixed seating or height-adjustable seating, the escape routes are all unidirectional. In case of an emergency, such as when the evacuation doors are locked or blocked by debris, the escape routes will lose their function of allowing the audience to evacuate, greatly increasing the safety risk. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of the prior art and provide an emergency passage for raising and lowering the audience seating area. In an emergency, this passage can connect the audience seating area with the outer ring fixed passage, and its direction can be adjusted to allow audience members in the audience seating area to access the outer ring fixed passage at different levels, thus facilitating better audience evacuation and improving safety.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An emergency access route for raising and lowering audience seating includes an outer ring fixed channel and an inner raising and lowering audience seating. The outer ring fixed channel has a multi-layered structure distributed vertically. The raising and lowering audience seating includes a steel frame. An emergency ramp, a raising and lowering transition platform, and a raising and lowering power assembly are provided between the outer ring fixed channel and the steel frame. The inner end of the emergency ramp connects to the steel frame and has wheels at its bottom. The steel frame has corresponding horizontal tracks for the wheels. The raising and lowering transition platform includes a platform channel and a platform support below it. The outer end of the platform channel connects to the outer ring fixed channel, and the inner end is hinged to the outer end of the emergency ramp. The platform support has a certain number of raising and lowering wheels distributed vertically around its circumference. The steel frame has corresponding longitudinal raising and lowering guide rails. The raising and lowering power assembly includes a power unit located below the emergency ramp channel. The power unit is connected to the lower part of the platform support via a traction rope. The steel frame has a certain number of pulleys for the traction rope to wind around. Driven by a power unit, the traction force of the traction rope, guided by the lifting wheels and lifting guide rails, causes the lifting transition platform to rise or fall. The slope of the emergency ramp, hinged to the platform passage, changes accordingly. At its end, the ramp moves slightly along its track via traveling wheels. Audiences can sequentially pass through the emergency ramp and the platform passage to reach the outer ring fixed passage at different heights. Therefore, the emergency passage is divided into two sections: a horizontal platform passage with variable height, and an emergency ramp passage whose slope changes with the height of the platform passage.

[0007] Preferably, an evacuation door is provided on the inner side of the outer ring fixed passage. Normally, it is kept closed to prevent people from falling; it is opened when an emergency ramp evacuation is needed.

[0008] Preferably, the platform of the emergency ramp is made of patterned steel plate, or the emergency ramp is treated with other anti-slip measures to prevent spectators from slipping when passing through the ramp.

[0009] Preferably, the lifting power unit also includes a manual winch, which is connected to the lower part of the platform support via a traction rope that passes over a pulley. In the event of a power outage or power unit failure, the platform channel and the outer ring fixed platform can be connected manually.

[0010] Preferably, the lifting power assembly also includes a counterweight, which is connected to the platform support via a traction rope that passes over a pulley. The weight of the counterweight essentially offsets the weight of the lifting transition platform (sufficient margin for automatic descent is allowed), and the purpose of the counterweight is to reduce the manual operation effort.

[0011] Preferably, railings are installed on both sides of the emergency ramp and the platform passage. The railings are normally closed to prevent visitors from using the emergency passage; they are manually opened when evacuation is required.

[0012] The advantages of this invention are: in an emergency, the emergency passage can connect the audience seating area and the outer ring fixed passage, and the passage direction can be adjusted to allow the audience in the audience seating area to access the outer ring fixed passage at different levels, thus facilitating better audience evacuation and improving safety. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0014] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0015] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 3 .

[0016] Explanation of key component symbols in the diagram:

[0017] 10. Fixed outer ring passage; 11. Evacuation doors;

[0018] 20. Steel frame for lifting auditorium; 21. Track for traveling wheels; 22. Lifting guide rail; 23. Pulleys;

[0019] 30. Emergency ramp; 31. Walking wheels;

[0020] 41. Lifting transition platform; 42. Platform passageway; 43. Platform support; 44. Lifting wheels;

[0021] Lifting power components: 51. Power unit; 52. Traction rope; 53. Manual winch; 54. Counterweight;

[0022] 100. Railings. Detailed Implementation

[0023] To more clearly illustrate this utility model, the following description, in conjunction with the accompanying drawings, will provide further details.

[0024] Example 1: As Figure 1 As shown, an emergency passage for raising and lowering audience seating includes an outer ring fixed passage 10 and an inner raising and lowering audience seating. The outer ring fixed passage 10 has a multi-layer structure distributed vertically. The raising and lowering audience seating includes a raising and lowering audience seating steel frame 20. An emergency ramp passage 30, a raising and lowering transition platform, and a raising and lowering power assembly are provided between the outer ring fixed passage 10 and the raising and lowering audience seating steel frame 20.

[0025] The emergency ramp passage 30 is connected to the lifting spectator seating steel frame 20 at its inner end, and is equipped with a walking wheel 31 at its bottom. The lifting spectator seating steel frame 20 is equipped with a corresponding horizontal walking wheel track 22.

[0026] The lifting transition platform includes a platform channel 41 and a platform support 42 below it. The outer end of the platform channel 41 is connected to the outer ring fixed channel 10, and the inner end is hinged to the outer end of the emergency ramp channel 30. The platform support 42 is circumferentially provided with a certain number of lifting wheels 43 distributed vertically. The lifting audience seating steel frame 20 is provided with corresponding longitudinal lifting guide rails 23.

[0027] The lifting power assembly includes a power unit 51 located below the emergency ramp passage 30. The power unit 51 is connected to the lower part of the platform support 42 via a traction rope 52. The lifting audience seating steel frame 20 is equipped with a certain number of pulleys 24 for the traction rope 52 to wind around.

[0028] Example 2: Combination Figure 1-3 As shown, based on Embodiment 1, an evacuation door 11 is provided on the inner side of the outer ring fixed channel 10.

[0029] Example 3: Based on Example 1 or Example 2, the platform of the emergency ramp 30 is made of patterned steel plate, or the emergency ramp is treated with other anti-slip measures.

[0030] Example 4: Combination Figure 1-3 As shown, based on Embodiment 1, Embodiment 2 or Embodiment 3, the lifting power assembly further includes a manual winch 53, which is connected to the lower part of the platform support 42 via a traction rope 52 that passes over the pulley 24.

[0031] The lifting power assembly also includes a counterweight 54, which is connected to the platform support 42 via a traction rope 52 that passes over a pulley 24.

[0032] Example 5: Combination Figure 1-3 As shown, based on the above embodiment, railings 100 are provided on both sides of the emergency ramp passage 30 and the platform passage 41.

[0033] The working method is as follows: Figure 1 As shown, in this state, the emergency passage is horizontal, that is, the emergency ramp passage 30 is horizontal. The emergency passage connects the audience seating area and the outer ring fixed passage 10 of a certain floor. Audiences can access the outer ring fixed passage 10 of that floor by sequentially passing through the emergency ramp passage 30 and the platform passage 41; as shown Figure 2As shown, the lifting platform is lowered by the traction force of the traction rope 52 driven by the power unit 51 or the manual winch 53. The slope of the emergency ramp 30, which is hinged to the platform passage 41, changes accordingly, allowing spectators to access the lower-level outer ring fixed passage 10 via the emergency ramp 30 and the platform passage 41. Figure 3 As shown, the lifting transition platform is raised by the traction force of the traction rope 52 driven by the power unit 51 or the manual winch 53. The slope of the emergency ramp passage 30, which is hinged to the platform passage 41, changes accordingly. The audience can pass through the emergency ramp passage 30 and the platform passage 41 to reach the outer ring fixed passage 10 of the upper floor.

[0034] The above description is only a specific embodiment of the present utility model, but the structural features of the present utility model are not limited thereto. The present utility model can be used in similar products. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. An emergency passage for raising and lowering audience seating, comprising an outer ring fixed passage (10) and an inner raising and lowering audience seating, wherein the outer ring fixed passage (10) has a multi-layered structure distributed vertically, and the raising and lowering audience seating includes a raising and lowering audience seating steel frame (20), characterized in that: An emergency ramp passage (30), a lifting transition platform, and a lifting power assembly are provided between the outer ring fixed passage (10) and the lifting audience seating steel frame (20); The inner end of the emergency ramp (30) is connected to the lifting audience seating steel frame (20), and the bottom is provided with a walking wheel (31). The lifting audience seating steel frame (20) is provided with a corresponding horizontal walking wheel track (22). The lifting transition platform includes a platform channel (41) and a platform support (42) below it. The outer end of the platform channel (41) is connected to the outer ring fixed channel (10), and the inner end is hinged to the outer end of the emergency ramp channel (30). The platform support (42) is provided with a certain number of lifting wheels (43) distributed vertically in layers. The lifting audience seating steel frame (20) is provided with corresponding longitudinal lifting guide rails (23). The lifting power assembly includes a power unit (51) located below the emergency ramp (30). The power unit (51) is connected to the lower part of the platform support (42) via a traction rope (52). A certain number of pulleys (24) are provided on the lifting audience seating steel frame (20) for the traction rope (52) to wind around.

2. An emergency passage for raising and lowering audience seating as described in claim 1, characterized in that: An evacuation door (11) is provided on the inner side of the outer ring fixed channel (10).

3. An emergency passage for raising and lowering audience seating as described in claim 1, characterized in that: The platform of the emergency ramp (30) is made of patterned steel plate.

4. An emergency passage for raising and lowering audience seating as described in claim 1, characterized in that: The lifting power assembly also includes a manual winch (53), which is connected to the lower part of the platform support (42) via a traction rope (52) that passes over a pulley (24).

5. An emergency passage for raising and lowering audience seating as described in claim 4, characterized in that: The lifting power assembly also includes a counterweight (54), which is connected to the platform support (42) via a traction rope (52) that passes over a pulley (24).

6. An emergency passage for raising and lowering audience seating according to any one of claims 1-5, characterized in that: The emergency ramp (30) and the platform passage (41) are equipped with railings (100) on both sides.

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