Lifting structure for railway platform safety door

Abstract

The lifting structure for the railway platform safety door comprises a plurality of sliding rails which are vertically arranged and arranged side by side in the left-right direction, stop blocks are fixed to the front sides of the sliding rails, sliding tables are slidably connected to the front sides of the sliding rails, the fixing positions of the stop blocks sequentially ascend or descend according to the arrangement sequence of the sliding rails, and the stop blocks are located below the sliding tables. The sliding table can be prevented from descending; a linkage strip is fixed to the sliding table capable of descending to the lowest position, linkage magnets are arranged on the other sliding tables, one end of the linkage strip transversely extends to the position below the other sliding tables, iron blocks corresponding to the linkage magnets are arranged on the linkage strip, the other end of the linkage strip is connected with a lifting power device, and the linkage strip is arranged to be capable of supporting all the sliding tables to ascend. According to the mechanism, through the arrangement of the linkage magnet and the iron block, the sliding table and the linkage strip are connected together through attraction force, then the linkage strip can drag the sliding table to move downwards synchronously, and it is guaranteed that the protection ropes are arranged at equal intervals.

Description

Technical Field

[0001] This utility model relates to the field of platform safety protection technology, specifically a lifting structure 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 form in subways is the platform screen door (glass), but platform screen doors are expensive and limited by train speed (high wind resistance), making them 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 people 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] In conventional lifting gates, the two ends of the safety rope are fixed to the sliding platform, which moves up and down. The sliding platform moves down by its own weight. Because the two ends of the safety rope are subjected to different forces, have different resistances, and have different installation precisions, the sliding platform cannot move down synchronously by its own weight, which makes it impossible to arrange the safety ropes at equal intervals. Utility Model Content

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

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

[0006] A lifting structure for a railway platform safety door includes several vertically arranged and side-by-side slide rails. A stop block is fixed to the front side of the slide rails and a slide table is slidably connected to them. The fixed positions of the stop blocks are raised or lowered sequentially according to the arrangement of the slide rails. The stop blocks are located below the slide table and can prevent the slide table from moving downwards.

[0007] A linkage bar is fixed on the slide that can descend to the lowest position. Linkage magnets are provided on the other slides. One end of the linkage bar extends horizontally to the bottom of the other slides and has iron blocks corresponding to each linkage magnet. The other end of the linkage bar is connected to a lifting power device. The linkage bar is designed to lift all slides upward.

[0008] When moving upwards, the linkage bar pushes several slides sequentially from bottom to top until all slides are lifted to the top. At this point, the iron block and the linkage magnet come into contact and attract each other.

[0009] During descent, the attraction between the iron block and the linkage magnet causes the linkage bar to pull the slide, ensuring that the slides at both ends of the safety rope descend synchronously, maintaining the horizontal movement of the safety rope, and thus ensuring the equidistant arrangement of the safety ropes. When the slide is blocked by the stop block, the linkage bar continues to descend, and the iron block detaches from the linkage magnet on the blocked slide.

[0010] In the above scheme, the slide table includes a sliding bar and a connecting rope. The sliding bar and the connecting rope are parallel to each other and vertically arranged. They are fixed together by a connecting rod. The sliding bar is slidably connected to the slide rail. The connecting rope is located in front of the sliding bar and is used to fix the protective rope.

[0011] Preferably, the linkage magnet is fixed on the sliding bar and located near the lower end of the sliding bar, so that the iron block can be brought into contact with and attracted to the linkage magnet as soon as the linkage bar moves upward.

[0012] Preferably, the slide includes three slides, which are arranged in the order of the slide rails as a first slide, a second slide, and a third slide, with the first slide capable of descending to the lowest position.

[0013] The connecting ropes of the first and third slides are offset toward the second slide relative to their respective sliding bars and are located in front of the connecting ropes of the second slide, so that the protective ropes fixed on the three slides can be closer together, and thus the protective surface formed by the protective ropes can be closer to the vertical plane when the three slides are separated.

[0014] Furthermore, each of the three slides is equipped with a rope fixing device. The rope fixing device of the second slide is located at the horizontal middle of its connecting rope, while the rope fixing devices of the first and third slides are located at the edge of their respective connecting ropes near the second slide, so that the protective ropes fixed on the three slides can be closer together.

[0015] To prevent the sliding platforms from sliding during guarding, a first locking element is provided on the upper part of the first sliding platform, and a second locking element is provided on the lower part of the third sliding platform. The upper and lower parts of the second sliding platform are respectively provided with a first locking element and a second locking element. When the first locking element of the first sliding platform moves downward, it can hook the second locking element of the second sliding platform. When the first locking element of the second sliding platform moves downward, it can hook the second locking element of the third sliding platform. Thus, when the three sliding platforms are hooked together, if the first sliding platform does not move, the second and third sliding platforms cannot slide upward. With the help of the stop block, the positions of the second and third sliding platforms can be locked. Since the first sliding platform is fixed to the linkage bar, and the linkage bar is braked by the lifting power device, the up and down movement of the first sliding platform is controllable.

[0016] Specifically, the first card has a card block that is laterally bent in the direction of the second card that cooperates with it. The second card extends downward by a preset length and has a card slot for the card block to slide into. The card slot extends upward through the upper end of the second card. When the card block moves downward, it slides into the card slot from the upper end of the card slot and can be blocked by the lower end of the card slot.

[0017] Preferably, the lifting power unit includes a motor and a transmission belt connected to the output end of the motor, the transmission belt extending vertically, and a linkage bar fixed on the transmission belt.

[0018] Preferably, the linkage bar is made of iron and is integrally formed with the iron block.

[0019] This utility model provides a lifting structure for railway platform safety doors. By setting up a linkage magnet and an iron block, the slide and the linkage bar are connected together by attraction, so that the linkage bar can pull the slide down synchronously. This ensures that the protective ropes are arranged at equal intervals, and also avoids the problem of the slide getting stuck due to the friction force between the slide and the rail being greater than the weight of the slide. This reduces malfunctions and extends the service life of the mechanical structure. Attached Figure Description

[0020] In the attached diagram:

[0021] Figure 1 This is a schematic diagram of the lifting structure;

[0022] Figure 2 A schematic diagram of the sliding rail and sliding table in the guarded state of the lifting structure;

[0023] Figure 3 for Figure 2 A magnified view of a portion of the image;

[0024] Figure 4 This is a bottom view diagram of the slide table;

[0025] Figure 5 This is a schematic diagram of the slide table.

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

[0027] 1. Slide rail; 2. Stop block; 3. Slide table; 31. Sliding bar; 32. Connecting rope; 33. Connecting rod; 34. Rope fixing component; 35. First locking component; 351. Locking block; 36. Second locking component; 361. Locking groove; 3a. First slide table; 3b. Second slide table; 3c. Third slide table; 4. Linkage bar; 41. Iron block; 5. Linkage magnet; 6. Lifting power device. Detailed Implementation

[0028] This utility model embodiment provides a lifting structure for railway platform safety gates. The lifting structure is installed on the vertical posts of the railway platform safety gate. Multiple vertical posts are arranged along the edge of the platform, and horizontal protective ropes are connected between adjacent vertical posts. The lifting mechanism is used to raise and lower the protective ropes. When the protective ropes are lowered, they form a barrier to prevent passengers from approaching the edge of the platform. When the protective ropes are raised, the barrier is released, allowing passengers to pass underneath.

[0029] like Figure 1 As shown, the lifting structure includes several vertically arranged slide rails 1 arranged side by side. A stop block 2 is fixed to the front side of the slide rail 1 and a slide table 3 is slidably connected to it. The fixed positions of the stop blocks 2 are raised or lowered in sequence according to the arrangement of the slide rails 1. The stop blocks 2 are located below the slide table 3 and can prevent the slide table 3 from moving downward.

[0030] In this embodiment, the vertical pile includes a base and a vertical plate fixed on the base. Lifting mechanisms can be installed on both sides of the vertical plate. (For clarity, the following is an illustration.) Figure 1 The lifting mechanism is shown on only one side. The slide rail 1 is installed on one side of the vertical plate, and several slide rails 1 are of different lengths and are installed side by side in order of increasing or decreasing length. During installation, the upper ends of several slide rails 1 are flush, and the stop block 2 is installed at the lower end of the slide rail 1. This method saves the material of the slide rail 1 and reduces the cost.

[0031] like Figure 2 and 3 As shown, when the slide 3 descends, several slides 3 are blocked by their respective stop blocks 2 in sequence and stop on the stop blocks 2, causing the stopping height of the slide 3 to rise or fall in sequence, thereby pulling the protective ropes connected to the slides 3 up and down to form a rope wall and play a protective role.

[0032] The height difference between adjacent stop blocks 2 is preferably the same, so that when the slide 3 stops on the stop block 2, the spacing between the protective ropes pulled up and down is the same. More preferably, when multiple parallel protective ropes are connected to each slide 3, the height difference between adjacent stop blocks 2 can ensure that all the protective ropes are parallel to each other and spaced at the same distance when pulled up and down, achieving the best barrier effect.

[0033] In addition, a linkage bar 4 is fixed on the slide 3 that can descend to the lowest position, and linkage magnets 5 are provided on the other slides 3. One end of the linkage bar 4 extends laterally to the bottom of the other slides 3, and iron blocks 41 corresponding to each linkage magnet 5 are provided on it. The other end of the linkage bar 4 is connected to the lifting power device 6. The linkage bar 4 is set to be able to lift all slides 3 upward.

[0034] The lifting power unit 6 includes a motor and a transmission belt connected to the output end of the motor. The transmission belt extends vertically, and the linkage bar 4 is fixed on the transmission belt. The motor is mounted on the base of the vertical pile, and a driven wheel is provided at the upper end of the vertical plate. The transmission belt is sleeved on the output end of the motor and the driven wheel.

[0035] In this embodiment, the linkage bar 4 is made of iron and is integrally formed with the iron block 41.

[0036] In this embodiment, the iron block 41 is preferably located below the corresponding linkage magnet 5, so that the linkage bar 4 can support the slide table 3 by pressing against the linkage magnet 5 through the iron block 41.

[0037] In this embodiment, the positions and cooperation relationship of the linkage magnet 5 and the linkage bar 4 are set such that when the iron block 41 presses against the linkage magnet 5, the several sliding platforms 3 connected to the linkage bar 4 are at the same height position, so that when the railway platform safety door is in the unblocked state, the several sliding platforms 3 are in a horizontal arrangement, thereby reducing the height of the railway platform safety door.

[0038] When the barrier needs to be removed, the lifting power unit 6 drives the linkage bar 4 upward, which in turn drives the slide 3 fixedly connected to it upward. When the slide 3 rises to the same height as the next slide 3 in sequence, the iron block 41 of the linkage bar 4 abuts and attracts the linkage magnet 5 on the slide 3 in sequence. The linkage bar 4 continues to rise, similarly lifting the subsequent slides 3 in sequence, until all slides 3 are lifted upward together.

[0039] When a stop is needed, the lifting power unit 6 drives the linkage bar 4 downwards. The linkage bar 4 then drives the slide 3 fixedly connected to it downwards. The other slides 3 are pulled down synchronously by the linkage bar 4 due to the attraction between the linkage magnet 5 and the iron block 41. When a slide 3 is blocked by the stop block 2 and stops descending, the driving force of the lifting power unit 6 is greater than the attraction between the linkage magnet 5 and the iron block 41. Therefore, the iron block 41 separates from the linkage magnet 5 of the blocked slide 3, and the linkage bar 4 continues to drive the other slides 3 downwards, and so on, until all slides 3 are blocked by the stop block 2.

[0040] The lifting mechanism of this invention uses a linkage bar 4 to pull the slide 3 downwards, instead of the slide 3 moving freely under gravity. This ensures that the slides 3 at both ends of the protective rope can descend synchronously, maintaining the horizontal movement of the protective rope and thus ensuring that the protective ropes are arranged at equal intervals. It also avoids the problem of the slide 3 getting stuck due to the frictional force between the slide 3 and the slide rail 1 exceeding the weight of the slide 3, reducing mechanical failures and extending the lifespan of the mechanical structure.

[0041] The slide table 3 specifically includes a sliding bar 31 and a connecting rope 32. The sliding bar 31 and the connecting rope 32 are parallel to each other and vertically arranged. They are fixed together by a connecting rod 33. The sliding bar 31 is slidably connected to the slide rail 1. The connecting rope 32 is located in front of the sliding bar 31 and is used to fix the protective rope.

[0042] The linkage magnet 5 is fixed on the sliding bar 31 and close to the lower end of the sliding bar 31 so that the iron block 41 can be attracted to the linkage magnet 5 as soon as the linkage bar 4 moves upward.

[0043] The slide rail 1 preferably includes three slides, and the number of slide tables 3 is also three. According to the arrangement order of the slide rail 1, they are the first slide table 3a, the second slide table 3b and the third slide table 3c. The first slide table 3a can descend to the lowest position.

[0044] Among them, such as Figure 4 As shown, the connecting ropes 32 of the first slide 3a and the third slide 3c are offset relative to their respective sliding bars 31 towards the second slide 3b and are located in front of the connecting ropes 32 of the second slide 3b, so that the protective ropes fixed on the three slides 3 can be closer together, and thus when the three slides 3 stop on the stop block 2, the protective surface formed by the protective ropes can be closer to the vertical surface.

[0045] Each of the three slides 3 is equipped with a rope fixing component 34. The rope fixing component 34 of the second slide 3b is located at the horizontal middle position of its connecting rope 32. The rope fixing components 34 of the first slide 3a and the third slide 3c are located at the edge of their respective connecting ropes 32 near the second slide 3b, so that the protective ropes fixed on the three slides 3 can be closer together.

[0046] For example Figure 5 As shown, in order to ensure that the slide 3 is firmly stopped on the stop block 2 during the guarding process, the first slide 3a is provided with a first locking piece 35 at the upper part, the third slide 3c is provided with a second locking piece 36 at the lower part, and the second slide 3b is provided with a first locking piece 35 and a second locking piece 36 at the upper and lower parts respectively. When the first locking piece 35 of the first slide 3a moves downward, it can hook the second locking piece 36 of the second slide 3b. When the first locking piece 35 of the second slide 3b moves downward, it can hook the second locking piece 36 of the third slide 3c. Thus, when the three slides 3 are hooked together, if the first slide 3a does not move, the second slide 3b and the third slide 3c cannot slide upward. With the help of the stop block 2, the positions of the second slide 3b and the third slide 3c can be locked. That is, when the three slides 3 are hooked together, all three slides 3 are stopped on the stop block 2. The second slide 3b and the third slide 3c are not only hooked to the first slide 3a and cannot move upwards, but are also restricted by the stop block 2 and cannot move downwards, thus locking their positions. The first slide 3a, on the other hand, is fixed to the linkage bar 4, which is braked by the lifting power device 6, so the up and down movement of the first slide 3a is controllable.

[0047] In this embodiment, the first locking member 35 is laterally bent into a locking block 351 in the direction of the second locking member 36 that cooperates with it. The second locking member 36 extends downward by a predetermined length and has a slot 361 for the locking block 351 to slide into. The slot 361 extends upward only through the upper end of the second locking member 36. When the locking block 351 moves downward, it slides into the slot 361 from the upper end and can be blocked by the lower end surface of the slot 361. In this way, the three slides 3 are hooked together and when hooked together, the three slides 3 stop on their respective stop blocks 2.

[0048] This utility model provides a lifting structure for railway platform safety doors. Through the installation of a linkage magnet 5 and an iron block 41, the slide 3 and the linkage bar 4 are connected by attraction. This allows the linkage bar 4 to pull the slide 3 downwards synchronously, replacing the slide 3's reliance on its own weight. This ensures the evenly spaced arrangement of the protective ropes and avoids the problem of the slide 3 getting stuck due to friction between the slide 3 and the rail 1 exceeding the slide 3's weight, reducing malfunctions and extending the lifespan of the mechanical structure. Furthermore, during barrier operation, the position of the slide 3 can be locked to ensure effective barrier function.

Claims

1. A lifting structure for railway platform safety doors, characterized in that, It includes several vertically arranged and side-by-side slide rails (1), with a stop block (2) fixed to the front side of each slide rail (1) and a slide table (3) slidably connected thereto. The fixed positions of the stop blocks (2) are raised or lowered in sequence according to the arrangement order of the slide rails (1). The stop blocks (2) are located below the slide table (3) and can prevent the slide table (3) from moving downward. A linkage bar (4) is fixed on the slide (3) that can descend to the lowest position. The other slides (3) are provided with linkage magnets (5). One end of the linkage bar (4) extends laterally to the bottom of the other slides (3) and is provided with iron blocks (41) corresponding to each linkage magnet (5). The other end of the linkage bar (4) is connected to a lifting power device (6). The linkage bar (4) is configured to lift all slides (3) upward.

2. The lifting structure for railway platform safety doors as described in claim 1, characterized in that, The slide (3) includes a sliding bar (31) and a connecting rope (32). The sliding bar (31) and the connecting rope (32) are parallel to each other and vertically arranged. They are fixed together by a connecting rod (33). The sliding bar (31) is slidably connected to the slide rail (1). The connecting rope (32) is located in front of the sliding bar (31) and is used to fix the protective rope.

3. The lifting structure for railway platform safety doors as described in claim 2, characterized in that, The linkage magnet (5) is fixed on the sliding bar (31) and is located near the lower end of the sliding bar (31).

4. The lifting structure for railway platform safety doors as described in claim 3, characterized in that, The slide (3) includes three slides, which are arranged in the order of slide rail (1) as the first slide (3a), the second slide (3b) and the third slide (3c). The first slide (3a) can descend to the lowest position.

5. The lifting structure for a railway platform safety door as described in claim 4, characterized in that, The connecting ropes (32) of the first slide (3a) and the third slide (3c) are offset relative to their respective sliding bars (31) toward the second slide (3b) and are located in front of the connecting ropes (32) of the second slide (3b).

6. The lifting structure for railway platform safety doors as described in claim 5, characterized in that, Each of the three slides (3) is provided with a rope fixing member (34). The rope fixing member (34) of the second slide (3b) is located at the horizontal middle position of its connecting rope (32). The rope fixing members (34) of the first slide (3a) and the third slide (3c) are located at the edge of their respective connecting ropes (32) near the second slide (3b).

7. A lifting structure for a railway platform safety door as described in claim 6, characterized in that, The first slide (3a) is provided with a first locking piece (35) at its upper part, the third slide (3c) is provided with a second locking piece (36) at its lower part, and the second slide (3b) is provided with a first locking piece (35) and a second locking piece (36) at its upper and lower parts respectively. When the first locking piece (35) of the first slide (3a) moves downward, it can hook the second locking piece (36) of the second slide (3b). When the first locking piece (35) of the second slide (3b) moves downward, it can hook the second locking piece (36) of the third slide (3c).

8. The lifting structure for railway platform safety doors as described in claim 7, characterized in that, The first card (35) is laterally bent into a card block (351) in the direction of the second card (36) that cooperates with it. The second card (36) extends downward by a predetermined length and has a card groove (361) for the card block (351) to slide into. The card groove (361) only extends upward through the upper end of the second card (36).

9. A lifting structure for a railway platform safety door as described in claim 1, characterized in that, The lifting power device (6) includes a motor and a transmission belt connected to the output end of the motor. The transmission belt extends vertically, and the linkage bar (4) is fixed on the transmission belt.

10. A lifting structure for a railway platform safety door as described in claim 1, characterized in that, The linkage bar (4) is made of iron and is integrally formed with the iron block (41).

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