Rope fixing mechanism for railway platform safety door

Abstract

The utility model provides a rope fixing mechanism for a railroad platform safety door. The rope fixing mechanism comprises a protection rope, two sliding tables, two wedge-shaped locking pieces and a pulley. The two sliding tables vertically extend and are arranged side by side, wedge-shaped locking pieces and / or pulleys are installed on the sliding tables, the two wedge-shaped locking pieces are arranged up and down, the protection rope alternately extends between the two sliding tables in a wave shape, the upper end and the lower end of the protection rope are clamped by the two wedge-shaped locking pieces, and a rope body slides on the pulleys. According to the mechanism, the number of the protective ropes between the two sliding tables can be reduced from multiple to one through the arrangement of the pulleys, it can be guaranteed that the protective ropes are evenly stressed, and the tension of the protective ropes can be conveniently measured through a tension meter. In addition, the number of points, needing to be fastened, of the protection rope can be reduced to two, the structure is simplified, and the installation and maintenance difficulty is lowered.

Description

Technical Field

[0001] This utility model relates to the field of platform safety door technology, specifically a rope fixing mechanism for railway platform safety doors. Background Technology

[0002] Railway platform screen doors are safety facilities installed on the edge of railway platforms, primarily used to separate the platform from the track area. When trains enter or leave the station, they effectively prevent passengers from falling onto the tracks and prevent passengers' belongings or platform equipment from accidentally falling into the track area, ensuring the safety of passengers and train operation. Railway platform screen doors come in various forms. The most common type in subways is the glass platform screen door, but this is costly and limited by train speed (high wind resistance), making it unsuitable for high-speed rail applications. Conventional platform lift doors primarily use safety ropes to prevent people or items from falling onto the tracks. After the train arrives at the station and comes to a complete stop, the ropes rise, allowing passengers to board and alight. Outside of these times, the safety ropes are evenly spaced from top to bottom, providing a barrier. The advantages of platform lift doors are: low cost, low wind resistance, and ease of maintenance. Therefore, platform lift doors are gradually becoming a development trend for maintaining the safety of high-speed rail platforms.

[0003] Platform lift doors use ropes as the main protective structure, but in practical applications, the following problems exist: 1) Complex fixing method: multiple (e.g., 12) protective ropes are used on both sides, with a total of 24 points that need to be tightened at both ends; 2) Conventional use of screws cannot guarantee a tight fit, which can easily lead to the breakage or loosening of the protective ropes; 3) With many points that need to be fixed, it is difficult to ensure that the tension of each protective rope is consistent (uneven stress), making it impossible to achieve equal spacing between the protective ropes. Utility Model Content

[0004] To address the technical problems mentioned above, this utility model provides a rope fixing mechanism for railway platform safety doors.

[0005] The technical solution of this utility model is as follows:

[0006] A rope fixing mechanism for railway platform safety doors includes a protective rope, two slides, two wedge-shaped locking elements, and pulleys;

[0007] Two slides extend vertically and are arranged side by side. Wedge-shaped locking devices and / or pulleys are installed on the slides. The two wedge-shaped locking devices are arranged vertically. The protective rope extends alternately between the two slides in a wave shape. Its upper and lower ends are clamped by the two wedge-shaped locking devices, and the rope body slides on the pulley.

[0008] In one embodiment, two wedge-shaped locking members are installed at the upper and lower ends of the same slide, and a pulley is installed on another slide.

[0009] In one embodiment, the pulleys include a plurality of pulleys, with pulleys mounted on two slides, and wedge-shaped locking elements and / or pulleys arranged vertically on each slide.

[0010] In one embodiment, the protective rope extends alternately between the two slides in a square wave shape.

[0011] In one embodiment, one of the two slides is equipped with two wedge-shaped locking elements and two pulleys, while the other is equipped with four pulleys.

[0012] Preferably, the wedge-shaped locking element is located on the outside of the two slides, and the pulley is located on the inside of the two slides.

[0013] Preferably, the wedge-shaped locking element includes a fixing block with a rope receiving groove. A rope pressing block is connected to one side wall of the rope receiving groove. The distance between the rope pressing block and the other side wall of the rope receiving groove is adjustable, and the protective rope is pressed into the rope receiving groove by the rope pressing block.

[0014] Preferably, one side wall of the rope groove is inclined outward at an acute angle to the extending direction of the rope groove, the rope pressing block is connected to the inclined wall and can slide along the inclined wall, approaching or moving away from the other side wall of the rope groove.

[0015] Preferably, the side wall of the rope pressing block that presses down on the protective rope is flat and parallel to the side wall of the rope receiving groove.

[0016] Preferably, the inclined wall is provided with a threaded hole parallel to the extension direction of the rope receiving groove, and the rope pressing block is provided with a sliding hole. The rope pressing block is connected to the inclined wall by a screw passing through the sliding hole and engaging with the threaded hole, and is configured to press the rope pressing block into the rope receiving groove when the screw is tightened.

[0017] The rope fixing mechanism for railway platform safety doors provided by this utility model has the following beneficial effects:

[0018] 1. By setting up pulleys, the number of protective ropes between two sliding platforms can be reduced from multiple to one, which helps to ensure that the protective rope is evenly stressed and makes it easier to measure the tension of the protective rope with a tension gauge.

[0019] 2. The number of points where the protective rope needs to be secured is reduced to two, simplifying the structure and reducing the difficulty of installation and maintenance.

[0020] 3. The rope pressing block presses the protective rope with a flat surface, resulting in a large compression area and high friction, making it easier to lock the protective rope in place, preventing it from loosening or breaking. Attached Figure Description

[0021] In the attached diagram:

[0022] Figure 1 A three-dimensional schematic diagram of the rope fixing mechanism;

[0023] Figure 2 This is a front view schematic diagram of the rope fixing mechanism;

[0024] Figure 3 This is a schematic diagram of a wedge-shaped locking element;

[0025] Figure 4 This is a cross-sectional schematic diagram of a wedge-shaped locking component.

[0026] The components represented by the various reference numerals in the diagram are:

[0027] 1. Protective rope; 2. Slide table; 21. Rope passage hole; 3. Wedge locking element; 31. Fixing block; 311. Rope groove; 312. Sloping wall; 313. Threaded hole; 32. Rope pressing block; 321. Sliding hole; 322. Anti-slip groove; 33. Screw; 4. Pulley. Detailed Implementation

[0028] like Figure 1 and Figure 2 As shown, this utility model embodiment provides a rope fixing mechanism for railway platform safety doors, including a protective rope 1, two sliding platforms 2, two wedge-shaped locking parts 3, and a pulley 4;

[0029] Two slides 2 extend vertically and are arranged side by side. Wedge-shaped locking parts 3 and / or pulleys 4 are installed on the slides 2. The two wedge-shaped locking parts 3 are arranged vertically. The protective rope 1 extends alternately between the two slides 2 in a wave shape without interference. Its upper and lower ends are clamped by the two wedge-shaped locking parts 3, and the rope body slides on the pulleys 4.

[0030] The railway platform safety gate includes several rope stakes. Two sliding platforms 2 of the rope fixing mechanism are slidably connected to adjacent rope stakes. The protective rope 1 is fixed between the two sliding platforms 2. When the sliding platform 2 descends to a certain height, the protective rope 1 plays a blocking role.

[0031] Specifically, one end of the protective rope 1 is clamped and fixed by a wedge-shaped locking element. The rope body extends towards another slide 2, and after passing over the pulley 4 on the slide 2, it extends back, with the back-extending rope segment located below the previous rope segment, which refers to the rope segment extending between the two slides 2. If the slide 2 where the wedge-shaped locking element is located also has a pulley 4, then after extending back, the protective rope 1 similarly passes over the pulley 4 and extends towards another slide 2, and so on, so that the protective rope 1 extends in a wavy shape until the other end is clamped and fixed by another wedge-shaped locking element. Several rope segments located between the two slides 2 are arranged vertically and do not interfere with each other.

[0032] Two wedge-shaped locking parts 3 are preferably installed at the upper and lower ends of the same slide 2, and the pulley 4 is installed on another slide 2. Installing the two wedge-shaped locking parts 3 on the same slide 2 ensures that the force on both ends of the protective rope 1 is balanced, and that the force on both ends of the protective rope 1 is applied to the same slide 2, thus ensuring that the force on the slide 2 is balanced.

[0033] Furthermore, the pulley 4 preferably includes multiple pulleys, with pulleys 4 installed on both slides 2. The wedge-shaped locking elements 3 and / or pulleys 4 on each slide 2 are arranged vertically to form more rope segments that provide a barrier between the two slides 2, thereby improving the barrier effect of the protective rope 1.

[0034] Preferably, the protective rope 1 extends alternately between the two sliding platforms 2 in a square wave shape, that is, the rope segment between the two sliding platforms 2 extends horizontally and these rope segments are arranged vertically at intervals. This not only provides better protection, but also enables multiple rope fixing mechanisms to cooperate and form a protective rope wall.

[0035] In this embodiment, as Figure 2 As shown, two slides 2 are arranged left and right. The left slide 2 is equipped with two wedge-shaped locking elements 3 and two pulleys 4. The two wedge-shaped locking elements 3 are located at the top and bottom ends of the left slide 2, respectively, and the two pulleys 4 are located between the two wedge-shaped locking elements 3. The two wedge-shaped locking elements 3 and two pulleys 4 are arranged vertically. The right slide 2 is equipped with four pulleys 4, arranged vertically, and each of the four pulleys 4 corresponds one-to-one with the two wedge-shaped locking elements 3 and two pulleys 4 on the left slide 2.

[0036] The upper end of the protective rope 1 is fixed by a wedge-shaped locking piece 3 located above the left slide 2. The rope extends horizontally towards the right slide 2, and after passing over the pulley 4 at the corresponding height, it extends downward to the adjacent pulley 4. After passing over this pulley 4, it extends horizontally towards the left slide 2, passing over the two pulleys 4 on the left slide 2 and the other two pulleys 4 on the right slide 2 in the same manner. The lower end of the protective rope 1 is fixed by the wedge-shaped locking piece 3 located below the left slide 2. The protective rope 1 extends vertically in a square wave shape.

[0037] In this embodiment, by setting the pulley 4, the number of protective ropes 1 between the two slides 2 can be reduced from multiple to one. The rope body is slidably connected to the pulley 4, which helps to ensure that the protective rope 1 is subjected to uniform force and makes it easy to measure the tension of the protective rope 1 with a tension gauge.

[0038] In addition, the number of points that need to be fastened to the protective rope 1 can be reduced to two, simplifying the structure and reducing the difficulty of installation, debugging and maintenance.

[0039] like Figure 1As shown, the wedge-shaped locking member 3 is located on the outside of the two slides 2. In this embodiment, it is on the left side of the left slide 2, so that both ends of the protective rope 1 contact the slide 2. The slide 2 helps to share the tension of the rope body and reduce the clamping load of the wedge-shaped locking member 3. The pulley 4 is located on the inside of the two slides 2.

[0040] The slide 2 on which the wedge-shaped locking member 3 is installed has a rope hole 21 at the position corresponding to the wedge-shaped locking member 3. The end of the protective rope 1 passes through the rope hole 21 and is clamped by the wedge-shaped locking member 3.

[0041] like Figure 3 and Figure 4 As shown, the wedge-shaped locking member 3 includes a fixing block 31, a rope receiving groove 311 is provided on the fixing block 31, a rope pressing block 32 is connected to one side wall of the rope receiving groove 311, the distance between the rope pressing block 32 and the other side wall of the rope receiving groove 311 is adjustable, and the protective rope 1 is pressed into the rope receiving groove 311 by the rope pressing block 32.

[0042] The fixing block 31 is mounted on the slide table 2 and located on the side of the rope hole 21. The rope receiving groove 311 is formed on the mounting surface of the fixing block 31 and extends through both ends of the fixing block 31. When the fixing block 31 is mounted on the slide table 2, the slide table 2 seals the rope receiving groove 311 to form a hole-like structure. The end of the protective rope 1 passes through the rope hole 21 and bends towards the fixing block 31, passing through the rope receiving groove 311. In this way, the fixing effect of the end of the protective rope 1 is improved, making the protective rope 1 less likely to loosen.

[0043] To further improve the fixing effect of the end of the protective rope 1, one side wall of the rope groove 311 is inclined outward at an acute angle to the extending direction of the rope groove 311, forming a sloping wall 312. The rope pressing block 32 is connected to the sloping wall 312 and can slide along the sloping wall 312, approaching or moving away from the other side wall of the rope groove 311. When the rope pressing block 32 slides on the sloping wall 312 and approaches the other side wall of the rope groove 311, it will also slide along the extending direction of the rope groove 311. This sliding direction is the same as the direction of the force that pulls the end of the protective rope 1 out of the rope groove 311. If the end of the protective rope 1 is pulled out, the friction between the protective rope 1 and the pressure block 32 will cause the pressure block 32 to move together. Under the action of the inclined wall 312, the pressure block 32 will slide along the inclined wall 312, increasing the pressure of the pressure block 32 on the protective rope 1, preventing the protective rope 1 from being pulled out, making the end of the protective rope 1 more firmly clamped and less likely to loosen.

[0044] In this embodiment, the inclined wall 312 is provided at one end of the rope groove 311.

[0045] The rope-pressing block 32 is connected to the inclined wall 312 by screws 33, specifically, as shown in... Figure 4As shown, the inclined wall 312 has a threaded hole 313 parallel to the extending direction of the rope receiving groove 311, and the rope pressing block 32 has a sliding hole 321. The sliding hole 321 has a long strip-shaped cross-section. The screw 33 passes through the sliding hole 321 and engages with the threaded hole 313 to press the rope pressing block 32 onto the inclined wall 312. It is designed so that when the screw 33 is tightened, it can press the rope pressing block 32 into the rope receiving groove 311. The long strip-shaped sliding provides the conditions for the sliding of the rope pressing block 32.

[0046] Tightening screw 33 clamps the end of the protective rope 1. If screw 33 comes loose, as mentioned above, the rope clamping block 32 and the inclined wall 312 can also clamp the end of the protective rope 1, effectively preventing the protective rope 1 from coming loose.

[0047] In order to increase the friction between the rope pressing block 32 and the protective rope 1, the side wall of the rope pressing block 32 pressing the protective rope 1 is flat and parallel to the side wall of the rope groove 311, so as to increase the contact area between the rope pressing block 32 and the protective rope 1, so as to make it easier to lock the protective rope 1, making the protective rope 1 less likely to loosen or break.

[0048] Furthermore, an anti-slip groove 322 may be provided on the surface of the rope-pressing block 32 that contacts the protective rope 1. More specifically, the anti-slip groove 322 is serrated, that is, the side wall of the anti-slip groove 322 near the end of the protective rope 1 is an inclined surface, and the other side wall is a vertical surface. The inclined surface is inclined in the opposite direction to the direction in which the protective rope 1 is pulled out, thereby reducing the frictional force between the rope-pressing block 32 and the protective rope 1 when the end of the protective rope 1 is inserted into the rope groove 311, making it easier to tighten the protective rope 1, while increasing the frictional force between the rope-pressing block 32 and the protective rope 1 when the protective rope 1 is pulled out, so as to prevent the protective rope 1 from loosening.

Claims

1. A rope fixing mechanism for a railway platform safety door, characterized by, The protective rope (1), two sliding platforms (2), two wedge-shaped locking pieces (3) and pulleys (4) are included. The two sliding platforms (2) extend vertically and are arranged side by side, the wedge-shaped locking pieces (3) and / or the pulleys (4) are installed on the sliding platforms (2), the two wedge-shaped locking pieces (3) are arranged in an up-down manner, and the protective rope (1) extends alternately between the two sliding platforms (2) in a wave shape, the upper and lower ends of the protective rope (1) are clamped by the two wedge-shaped locking pieces (3), and the rope body slides on the pulleys (4).

2. The rope fixing mechanism for a railway platform safety door according to claim 1, wherein The two wedge-shaped locking pieces (3) are installed on the upper and lower ends of the same sliding platform (2), and the pulleys (4) are installed on the other sliding platform (2).

3. A rope fixing mechanism for a railway platform safety door according to claim 2, wherein The pulleys (4) are multiple, and the pulleys (4) are installed on each of the two sliding platforms (2), and the wedge-shaped locking pieces (3) and / or the pulleys (4) on each sliding platform (2) are arranged vertically.

4. The rope fixing mechanism for a railway platform safety door according to claim 3, wherein The protective rope (1) extends alternately between the two sliding platforms (2) in a square wave shape.

5. A rope fixing mechanism for a railway platform safety door according to claim 4, wherein Among the two sliding platforms (2), one is provided with two wedge-shaped locking pieces (3) and two pulleys (4), and the other is provided with four pulleys (4).

6. The rope fixing mechanism for a railway platform safety door according to claim 1, wherein The wedge-shaped locking pieces (3) are located on the outer side of the two sliding platforms (2), and the pulleys (4) are located on the inner side of the two sliding platforms (2).

7. A rope fixing mechanism for a railway platform screen door according to claim 6, characterized by The wedge-shaped locking piece (3) comprises a fixed block (31), the fixed block (31) is provided with a rope accommodating groove (311), one side wall of the rope accommodating groove (311) is connected with a rope pressing block (32), the distance between the rope pressing block (32) and the other side wall of the rope accommodating groove (311) is adjustable, and the protective rope (1) is pressed in the rope accommodating groove (311) by the rope pressing block (32).

8. A rope fixing mechanism for a railway platform safety door according to claim 7, wherein One side wall of the rope accommodating groove (311) is inclined outward to form an inclined wall (312) at an acute angle with the extension direction of the rope accommodating groove (311), the rope pressing block (32) is connected to the inclined wall (312) and can slide along the inclined wall (312), and is close to or away from the other side wall of the rope accommodating groove (311).

9. A rope fixing mechanism for a railway platform screen door according to claim 8, characterized by, The side wall of the protective rope (1) pressed by the rope pressing block (32) is a plane and parallel to the side wall of the rope accommodating groove (311).

10. The rope fixing mechanism for a railway platform safety door according to claim 9, wherein The inclined wall (312) is provided with a threaded hole (313) parallel to the extension direction of the rope accommodating groove (311), the rope pressing block (32) is provided with a sliding hole (321), the rope pressing block (32) is connected to the inclined wall (312) by cooperating the threaded hole (313) with the sliding hole (321) through the screw (33), and is arranged to be able to extrude the rope pressing block (32) into the rope accommodating groove (311) when the screw (33) is tightened.

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