Rail transit platform door top box structure

Abstract

The utility model discloses a rail transit platform door top box structure which comprises a movable cover plate, a lintel assembly and a structural beam, the movable cover plate is connected to the platform side of the structural beam in a rotating mode through a swing rod which is arranged obliquely downwards, and the movable cover plate is further provided with a sliding support which inclines upwards and is used for supporting and fixing the movable cover plate. The length of the swing rod is larger than the distance between the structural beam and the movable cover plate. The two ends of the swing rod are hinged to the first fixing base and the second fixing base and then fixed to the movable cover plate and the structural beam respectively, and the two ends of the sliding support are hinged to the third fixing base and the fourth fixing base and then fixed to the movable cover plate and the lintel assembly to be connected. When the movable cover plate is pushed upwards, the swing rod rotates upwards to drive the movable cover plate to move upwards to open the top box of the platform door, the sliding support continuously extends in the upward moving process of the movable cover plate, and the sliding support supports and limits the movable cover plate after the movable cover plate moves upwards to a proper position. The opened space of the platform door top box is large enough, so that the internal structure of the platform door top box is exposed for relevant maintenance operation.

Description

Technical Field

[0001] This utility model relates to a rail transit door, and more particularly to a rail transit platform door top box structure. Background Technology

[0002] The platform screen door top box of a rail transit station is located above the sliding door, fixed door, and emergency door of the platform screen door. It includes front and rear cover plates, structural beams, components fixed to the platform roof beam, and telescopic devices. Its main function is to provide a good operating environment for the braking and transmission mechanisms inside the top box. The design of the top box needs to meet certain strength requirements to protect the internal structure while facilitating easy access for maintenance or repair. Currently, the movable cover plate of the top box is generally connected to the structural beam via hinges. When opening is required, the movable cover plate is unlocked, then opened along the hinge to a suitable angle and secured by the telescopic support device for maintenance or repair of the internal structure. This design requires sufficient lateral space for the movable cover plate to rotate towards the platform side when opened. With the development of intelligent and human-centered design, more and more equipment needs to be installed on the platform. For example, existing passenger information display screens are generally installed perpendicular to the movable cover of the roof box at the same height to facilitate passengers getting on and off the train. To simultaneously meet the space requirements for opening the roof box and installing the display screen, a sufficiently spacious platform is necessary. However, as the coverage of rail transit construction expands, the intersecting tracks facilitate transfers. The more lines that can be transferred, especially when several tracks are set in parallel, the greater the demand for platform space. In some complex architectural environments, choosing a suitable track path and weighing various environmental factors is already very difficult, requiring the overcoming of many technical challenges. If the space requirements of the platform are also taken into account, the difficulty is further increased, which will inevitably increase the construction cost of rail transit or reduce the comfort of passengers. Utility Model Content

[0003] Purpose of the utility model: The purpose of this utility model is to minimize the intrusion of the opening top box into the platform side space and reduce the requirement for lateral space by the opening top box, and to provide a vertically opening rail transit platform door top box structure.

[0004] Technical solution: The rail transit platform door top box structure of this utility model includes a movable cover plate, a lintel assembly, and a structural beam. The movable cover plate is rotatably connected to the platform side of the structural beam by a downwardly inclined swing rod. The movable cover plate is also provided with an upwardly inclined sliding brace for supporting and fixing the movable cover plate. The length of the swing rod is greater than the distance between the structural beam and the movable cover plate.

[0005] Furthermore, the two ends of the swing arm are hinged to the first and second fixed seats, which are respectively fixed to the movable cover plate and the structural beam; the two ends of the sliding support are hinged to the third and fourth fixed seats, which are respectively fixed to the movable cover plate and the lintel assembly. Appropriate fixing positions are set according to the extension lengths of the swing arm and the sliding support. The swing arm is 150–200 mm long to ensure sufficient vertical sliding height to expose the internal space for easy maintenance. The sliding support has an extension length of 400–500 mm. Together, they allow the movable cover plate to move vertically up and down, opening and closing the platform screen door top box. This minimizes the space occupied by the movable cover plate on the platform side, reducing space constraints during platform side equipment layout, construction, and even rail transit line planning. In use, push the movable cover upward to rotate the swing arm upward, which in turn drives the movable cover to move upward and open the platform door top box. The sliding support is a four-bar structure with a limiting function. As the movable cover moves up, the sliding support also extends continuously. When the movable cover moves up to the appropriate position, the sliding support supports and limits it. The opening space of the platform door top box is large enough to expose its internal structure for related maintenance work.

[0006] Furthermore, two swing arms are provided, symmetrically arranged at both ends of the movable cover plate, to better support the movable cover plate and increase its stability during the upward movement.

[0007] Furthermore, two sliding supports are provided, symmetrically positioned at both ends of the movable cover plate, to increase the stability of the movable cover plate during movement or opening.

[0008] Furthermore, the swing arm is an elastic rod, which can reduce the vibration of the movable cover during the opening and closing process and reduce noise.

[0009] Beneficial effects: Compared with the prior art, the present invention has the following advantages: 1. By changing the movement trajectory of the movable cover opening, the movable cover is opened in the vertical space, reducing the platform side space required to open the movable cover assembly of the top box; 2. The upward movement space of the movable cover is reduced, increasing the exposed area of ​​the top box and increasing the maintenance viewing angle. The operator can directly face the internal structure of the top box, avoiding the movable cover interfering with the operator in the horizontal direction, reducing the maintenance difficulty and improving the maintenance efficiency. Attached Figure Description

[0010] Figure 1 This is a side view of the structure of this utility model;

[0011] Figure 2 This is a front view of the structure of this utility model;

[0012] Figure 3 This is a schematic diagram of the movable cover of this utility model when it is opened. Detailed Implementation

[0013] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0014] like Figure 1 The above-displayed structure of a rail transit platform door top box includes a movable cover plate 1, a door lintel assembly 4, and a structural beam 5. The movable cover plate 1 is rotatably connected to the platform side of the structural beam 5 by a downwardly inclined swing rod 3. The movable cover plate 1 is also provided with an upwardly inclined sliding support 2 for supporting and fixing the movable cover plate 1. The length of the swing rod 3 is greater than the distance between the structural beam and the movable cover plate.

[0015] like Figure 2 As shown, the swing rod 3 is an elastic rod, with two rods symmetrically arranged at both ends of the movable cover plate 1. The two ends of the swing rod 3 are hinged to the first fixed seat 6 and the second fixed seat 7, which are respectively fixed to the movable cover plate 1 and the structural beams 5 at both ends of the movable cover plate 1. The sliding support 2 is also provided in pairs, symmetrically arranged at both ends of the movable cover plate 1. The two ends of the sliding support 2 are hinged to the third fixed seat 8 and the fourth fixed seat 9, which are respectively fixed to the movable cover plate 1 and the lintel assembly 4. The sliding support 2 is a four-bar linkage with a limiting function. The swing rod 3 is 188mm long to ensure sufficient vertical sliding height to expose the internal space for easy maintenance. The maximum extension length of the sliding support 2 is 455mm. The two work together to allow the movable cover plate to move vertically up and down, opening and closing the platform door top box. This minimizes the space occupied by the movable cover plate during opening, reducing space constraints during platform equipment layout, platform construction, and even rail transit line planning. In practical applications, based on the size of the space above the platform door top box, the length and width of the movable cover plate, and the internal structure of the top box, select the appropriate length of the swing rod 3 and the maximum extension length of the sliding support 2, and select the appropriate fixing position. Match the two to ensure the safe opening and closing of the movable cover plate.

[0016] In use, push the movable cover 1 upwards, causing the swing arm 3 to rotate upwards, which in turn moves the movable cover 1 upwards to open the platform door top box. The sliding support 2 also extends continuously as the movable cover 1 moves upwards. Figure 3 As shown, when the movable cover plate 1 moves to the appropriate position, the sliding support 2 supports and limits it, and the space opened by the platform door top box is large enough to expose its internal structure for related maintenance work.

Claims

1. A platform screen door top box structure for rail transit stations, comprising a movable cover plate (1), a lintel assembly (4), and a structural beam (5), characterized in that, The movable cover plate (1) is rotatably connected to the platform side of the structural beam (5) by a downwardly inclined swing rod (3). The movable cover plate (1) is also provided with an upwardly inclined sliding support (2) for supporting and fixing the movable cover plate (1). The length of the swing rod (3) is greater than the distance between the structural beam (5) and the movable cover plate (1).

2. The platform screen door top box structure for rail transit stations according to claim 1, characterized in that, The two ends of the swing arm (3) are hinged to the first fixed seat (6) and the second fixed seat (7), which are respectively fixed to the movable cover plate (1) and the structural beam (5).

3. The platform screen door top box structure for rail transit stations according to claim 2, characterized in that, Two swing rods (3) are provided, and the two swing rods (3) are symmetrically arranged at both ends of the movable cover plate.

4. The platform screen door top box structure for rail transit stations according to claim 2, characterized in that, The length of the swing arm (3) is 150-200mm.

5. The platform screen door top box structure for rail transit stations according to claim 2, characterized in that, The swing arm (3) is an elastic rod.

6. The platform screen door top box structure for rail transit stations according to claim 1, characterized in that, The two ends of the sliding support (2) are hinged to the third fixed seat (8) and the fourth fixed seat (9), which are respectively fixed to the movable cover plate (1) and the lintel assembly (4).

7. The platform screen door top box structure for rail transit according to claim 6, characterized in that, The sliding support (2) is a four-bar sliding support with a limiting function.

8. The platform screen door top box structure for rail transit stations according to claim 6, characterized in that, Two sliding supports (2) are provided, and the two sliding supports (2) are symmetrically arranged at both ends of the movable cover plate.

9. The platform screen door top box structure for rail transit stations according to claim 6, characterized in that, The extension of the sliding support (2) is 400-500mm.

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