A new type of railway platform safety protection system

Abstract

A new type of railway platform safety protection system includes several traction columns, and several rope units are connected between two adjacent traction columns. The rope units are driven to rise and fall by a lifting unit. The lifting unit includes a lower rotating shaft and an upper rotating shaft arranged perpendicular to the rope, and a plurality of rotating wheels are arranged at intervals on each of the lower rotating shaft and the upper rotating shaft. The rotating wheels on the lower rotating shaft and the upper rotating shaft are arranged relative to each other, connected to form a transmission mechanism through a transmission member, and driven by a motor to rotate synchronously; the several rotating wheels on the lower rotating shaft or the upper rotating shaft have different sizes, and a group of rotating wheels arranged relative to each other have the same size; the rope unit includes two left and right rope threading plates and a tensioning rope connected in the middle. The rope threading plates are connected to the slide rail through a connecting unit. Each connecting unit is also connected to a different transmission member, and drives the rope unit up and down with the movement of the transmission member. When the rope unit of the present invention moves to the top and bottom positions, it will not contact and limit with any rigid object, avoiding the impact and collision phenomenon of the traditional style.

Description

Technical Field

[0001] The present invention relates to the field of railway safety technology, and in particular to a novel railway platform safety protection system. Background Art

[0002] More and more railway platforms are now using rope protection to prevent passengers from approaching the platform edge, improving the safety of railway platforms. For example, patent application number 202420350689.X, titled "A Railway Platform Protection Safety Device," discloses a typical rope protection device. This type of protection method is designed with a lifting mechanism that independently drives the lifting bracket to move up and down. Multiple rope units are set in the protective column for unpowered sliding. The upward movement relies on the lifting strips to collide with the connecting blocks of the rope units one by one, lifting all the rope units to the top. When descending, multiple rope units fall synchronously, successively colliding with the limit blocks set on the slide and stopping.

[0003] This type of protection requires separate setting of limit blocks, lifting brackets, and connecting devices between adjacent rope units. The structure is very complex, and when the rope units move up and down, they will collide with the lifting strips or limit blocks, affecting product performance.

[0004] Not only that, when the length of the rope unit exceeds a certain value, it will bend and sag severely. The distance between two adjacent protective columns should not be too long. The above-mentioned protective devices with complex structures need to be arranged in multiples along the platform, which undoubtedly further increases the cost of use. Summary of the Invention

[0005] In order to solve the technical problems existing in the above-mentioned background technology, the present invention provides a new railway platform safety protection system with smoother lifting and lowering and lower cost.

[0006] The technical solutions of the present invention are as follows:

[0007] A novel railway platform safety protection system includes several traction columns. Several rope units are connected between two adjacent traction columns. The rope units are driven to rise and fall by a lifting unit. Several vertically arranged slide rails are provided on the traction columns.

[0008] The lifting unit includes a lower rotating shaft and an upper rotating shaft horizontally connected to the lower and upper ends of the traction column. The lower rotating shaft and the upper rotating shaft are arranged perpendicular to the rope, and a number of rotating wheels are provided in gaps thereon. The slide rail is located in the gap on one side of the rotating wheel. The rotating wheels on the lower rotating shaft and the upper rotating shaft are arranged opposite to each other, connected to a transmission mechanism through a transmission member, and driven by a motor to rotate synchronously. The motor can be placed at the bottom and connected to the lower rotating shaft for easy maintenance.

[0009] The sizes of the rotating wheels on the lower rotating shaft or the upper rotating shaft are different, and the sizes of a group of rotating wheels arranged opposite to each other are the same.

[0010] The number of rotating wheels on the lower rotating shaft or the upper rotating shaft is the same as the number of rope units.

[0011] The rope unit consists of two rope threading plates on the left and right and a tensioning rope connected in the middle. The rope threading plates are connected to the slide rail through connecting units. Each connecting unit is also connected to a different transmission member, driving the rope unit to move up and down with the movement of the transmission member.

[0012] Compared with traditional protection systems:

[0013] 1. The rope units of this invention rotate at different speeds through the design of rotating wheels of different sizes. No limiters are required. Simply by designing rotating wheels with corresponding diameters based on the travel distances of the different rope units, the motor simultaneously drives the rotating shaft to rotate, while simultaneously driving the different transmission members at different speeds, thereby driving the rope units to move at different speeds. In the open state, all rope units are located at the top. In the closed state, different rope units move at different speeds. When the motor stops, they smoothly move to different positions, forming isolation zones.

[0014] 2. When the rope unit of the present invention moves to the top and bottom positions, it will not come into contact with any rigid objects to limit its position, thus avoiding the impact and collision phenomenon of traditional styles and protecting the product.

[0015] 3. The present invention eliminates various traditional limiting and connecting components. Only vertical slide rails are provided on the traction column, and rotating shaft brackets are provided at the top and bottom. There is nothing else. The structure is simple, clean, low-cost and easy to maintain.

[0016] As one embodiment, the conveying member of the lifting unit is a conveyor belt, which is convenient for connection with the connecting unit, and the rotating wheel is a pulley.

[0017] Of course, in addition to this preferred solution, chain drive or other methods can also be used, but the effect is relatively worse.

[0018] As a preferred embodiment, the rotating wheels on the lower shaft or the upper shaft are arranged in progressive sizes, so that the rope units are arranged in progressive layers after they descend to the bottom, and the distance between two adjacent rope units is the same, without any excessive gaps.

[0019] The connection unit may specifically include:

[0020] Linear bearing, vertically embedded in the rope threading plate;

[0021] A sliding shaft, one end of which passes through the linear bearing and the rope-threading plate, and the other end is connected to the sliding plate;

[0022] The sliding plate is slidably connected to the slide rail through the sliding seats at both ends;

[0023] The connecting plate has one end connected to the sliding plate and the other end connected to the transmission member.

[0024] Preferably, a tension sensor is connected between the rope threading plate and the sliding plate to monitor the tension of the tension rope, which has two functions:

[0025] 1. Rope break monitoring: When the monitored tension is lower than the first threshold, it means that part of the tension rope has broken, and the overall tension value will become smaller;

[0026] 2. Anti-pinch monitoring: When the detected tension is greater than the second threshold, it means that the rope unit may have crossed or hooked with passengers or foreign objects during the lifting process, resulting in an abnormally large tension value. At this time, the start-stop alarm will be activated.

[0027] Specifically, there are two sliding shafts, one at each end of the sliding plate, and the tension sensor is located between the two sliding shafts to maintain force balance.

[0028] As another important invention point of the present invention, a relay unit is also provided, which is located between the two traction columns;

[0029] The relay unit includes a frame, the tension rope passes through the interior of the frame and is capable of moving up and down within the frame;

[0030] Several pulley mechanisms are set on the top of the frame. Among the two flexible ropes downward from the pulley mechanism, one is connected to the rope clamp and the other is connected to the counterweight block. Each rope clamp clamps several tensioning ropes of a group of rope units, and each group of rope units is only connected to one rope clamp.

[0031] The pulley mechanism includes an outer rotating shaft and an inner rotating shaft, and the outer rotating shaft and the inner rotating shaft are arranged parallel to the rope unit;

[0032] The outer rotating shaft is connected to the outside of the top of the frame and is shared by multiple pulley mechanisms. It is passed through with the same number of rotating wheels as the rope units.

[0033] The inner rotating shaft is connected to the inner side of the frame top and is arranged parallel to the inner rotating shaft of the adjacent pulley mechanism. The spacing is matched with the spacing of the adjacent rope units. A rotating wheel is passed through each inner rotating shaft, which is positioned opposite to one of the rotating wheels on the outer rotating shaft. A flexible rope spans the outer sides of the two rotating wheels arranged in pairs.

[0034] The frame height matches the traction column height, and includes front and rear vertical plates and a bottom plate. The rope unit passes between the front and rear vertical plates, and the top is connected to the pulley mechanism through a support frame.

[0035] Compared with the traditional railway platform safety protection system, the present invention replaces the traction column with a lower-cost relay unit. The design of the relay unit can not only ensure that the entire rope unit passes through, but also maintain the tensioning rope passing through here in a gravity balance state. The gravity of the tensioning rope is balanced by the counterweight block, and only a small force needs to be applied to the tensioning rope here to make it rise or fall. That is, when the motor drives the rope unit to rise or fall, the tensioning rope in the relay unit will rise or fall synchronously without resistance.

[0036] The use of relay units can reduce overall costs by approximately half. Furthermore, traditional traction columns, measuring approximately 600 x 600 mm, occupy a significant portion of the platform area, obstructing visibility. Relay units, however, eliminate these complex mechanisms and are half the size, effectively eliminating obstructed visibility and improving safety.

[0037] As a further preferred solution, a locking device may be provided in the relay unit to lock the pulley mechanism after the rope unit is raised or lowered into position, thereby improving safety performance.

[0038] Through the above design, the railway platform safety protection system of the present invention is compared with the traditional protection system:

[0039] 1. The rope units of this invention rotate at different speeds through the design of rotating wheels of different sizes. No limiters are required. Simply by designing rotating wheels with corresponding diameters based on the travel distances of the different rope units, the motor simultaneously drives the rotating shaft to rotate, while simultaneously driving the different transmission members at different speeds, thereby driving the rope units to move at different speeds. In the open state, all rope units are located at the top. In the closed state, different rope units move at different speeds. When the motor stops, they smoothly move to different positions, forming isolation zones.

[0040] 2. When the rope unit of the present invention moves to the top and bottom positions, it will not come into contact with any rigid objects to limit its position, thus avoiding the impact and collision phenomenon of traditional styles and protecting the product.

[0041] 3. The present invention eliminates various traditional limiting and connecting components. Only vertical slide rails are provided on the traction column, and rotating shaft brackets are provided at the top and bottom. There is nothing else. The structure is simple, clean, low-cost and easy to maintain.

[0042] At the same time, the present invention replaces the traction column with a lower-cost relay unit. The design of the relay unit can not only ensure that the entire rope unit passes through, but also maintain the tensioning rope passing through here in a gravity balance state. The gravity of the tensioning rope is balanced by the counterweight block, and only a small force needs to be applied to the tensioning rope here to make it rise or fall. That is, when the motor drives the rope unit to rise or fall, the tensioning rope in the relay unit will rise or fall synchronously without resistance.

[0043] The use of relay units can reduce overall costs by approximately half. Furthermore, traditional traction columns, measuring approximately 600 x 600 mm, occupy a significant portion of the platform area, obstructing visibility. Relay units, however, eliminate these complex mechanisms and are half the size, effectively eliminating obstructed visibility and improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In the attached figure:

[0045] Figure 1 It is a structural diagram of the safety protection system;

[0046] Figure 2 This is the front view of the safety protection system;

[0047] Figure 3 It is a partial view of the position of the traction post;

[0048] Figure 4 It is a three-dimensional diagram of the safety protection system;

[0049] Figure 5 for Figure 4 A partial enlarged view of the middle Z position;

[0050] Figure 6 This is a schematic diagram of the installation of the connection unit;

[0051] Figure 7 is a structural diagram of the connection unit;

[0052] Figure 8 It is a partial enlarged view of the relay unit;

[0053] The components represented by the reference numerals in the figure are:

[0054] 1. Traction column; 11. Slide rail; 2. Rope unit; 21. Tension rope; 22. Rope threading plate; 3. Lifting unit; 31. Lower rotating shaft; 32. Upper rotating shaft; 33. First rotating wheel; 34. Second rotating wheel; 35. Third rotating wheel; 36. Conveyor belt; 4. Connecting unit; 41. Linear bearing; 42. Sliding shaft; 43. Sliding plate; 44. Slide seat; 45. Connecting plate; 46. Tension sensor; 5. Relay unit; 51. Frame; 52. Outer rotating shaft; 53. Inner rotating shaft; 54. Fourth rotating wheel; 55. Rope clamp; 56. Counterweight. DETAILED DESCRIPTION

[0055] See also Figures 1-4 The present invention provides a new railway platform safety protection system, including a plurality of traction columns 1. In the figure, the outer frame is removed to facilitate the viewing of the internal structure. The outer frame is the same as that of the existing traction column.

[0056] A plurality of rope units 2 are connected between two adjacent traction columns 1 , and the rope units 2 are driven to rise and fall by the lifting unit 3 . A plurality of vertically arranged slide rails 11 are provided on the traction column 1 , and the plurality of slide rails 11 are arranged horizontally at equal intervals.

[0057] The lifting unit 3 includes a lower shaft 31 and an upper shaft 32 horizontally connected to the lower and upper ends of the traction column 1. The traction column 1 comprises at least one upright column, with slide rails 11 provided on its side and two connecting lugs extending from its top for connecting to the upper shaft 32. A base plate is provided at the bottom of the upright column, with two connecting lugs provided on the base plate for connecting to the lower shaft 31. The lower shaft 31 and the upper shaft 32 are located in the same vertical plane.

[0058] The lower rotating shaft 31 and the upper rotating shaft 32 are arranged perpendicular to the rope, and a number of rotating wheels are provided in the gaps thereon. The slide rail 11 is located in the gap on one side of the rotating wheel. The rotating wheels on the lower rotating shaft 31 and the upper rotating shaft 32 are arranged opposite to each other and are connected to form a transmission mechanism through a transmission member and are driven by a motor to rotate synchronously. The motor can be placed at the bottom and connected to the lower rotating shaft 31 for easy maintenance.

[0059] The sizes of the rotating wheels on the lower rotating shaft 31 or the upper rotating shaft 32 are different, and the sizes of a group of rotating wheels arranged opposite to each other are the same.

[0060] The number of the rotating wheels on the lower rotating shaft 31 or the upper rotating shaft 32 is the same as the number of the rope units 2. The rotating wheels facing each other form a group, and each group drives one rope unit 2 to move.

[0061] The rope unit 2 includes two left and right rope threading plates 22 and a tensioning rope 21 connected in the middle. The rope threading plates 22 are connected to the slide rail 11 through the connecting unit 4. Each connecting unit 4 is also connected to a different transmission member, driving the rope unit 2 to move up and down with the movement of the transmission member.

[0062] The tension ropes 21 shown in the figure are in a pattern of four, which can provide a larger shielding width.

[0063] In this embodiment, three groups of lifting units 3 are used as an example for description. The rotating wheels are divided into a first rotating wheel 33, a second rotating wheel 34 and a third rotating wheel 35 according to their diameters, and are arranged in a progressive manner. Figure 3 As shown, the slide rails 11 are designed to be three. Thus, after the rope units 2 connected to the slide rails 11 are lowered to the bottom, they are also arranged in layers, and the distance between two adjacent rope units 2 is the same, without generating excessive gaps.

[0064] Specifically, the upper and lower rotating wheels facing each other are both pulleys, and the transmission member is a transmission belt 36 , forming a belt transmission mechanism. The transmission belt has a large width, which is convenient for connecting the rope unit 2 .

[0065] Of course, in addition to this preferred solution, chain drive or other methods can also be used, but the effect is relatively worse.

[0066] Compared with traditional protection systems:

[0067] 1. The rope units 2 of this invention rotate at different speeds through the design of rotating wheels of different sizes. No limiters are required. Simply designing rotating wheels with corresponding diameters based on the travel distances of different rope units 2 allows the motor to simultaneously drive the various transmission elements at different speeds, thereby driving the rope units 2 to move at different speeds. In the open state, all rope units 2 are positioned at the top. In the closed state, different rope units 2 move at different speeds. When the motor stops, they smoothly move to different positions, forming isolation zones.

[0068] 2. When the rope unit 2 of the present invention moves to the topmost and bottommost positions, it will not come into contact with any rigid objects to limit its position, thus avoiding the impact and collision phenomenon of traditional styles and protecting the product.

[0069] 3. The present invention eliminates various traditional limiting and connecting components. Only vertical slide rails 11 are provided on the traction column 1, and rotating shaft brackets are provided at the top and bottom. There is nothing else. The structure is simple, clean, low-cost and easy to maintain.

[0070] See also Figure 5-Figure 7 In this embodiment, the connection unit 4 may specifically include:

[0071] The linear bearing 41 is vertically embedded in the vertically arranged rope threading plate 22;

[0072] The sliding shaft 42 has one end passing through the linear bearing 41 and the rope-threading plate 22 and can be limited by a connector to pass through the rope-threading plate 22. The other end is connected to the sliding plate 43.

[0073] The sliding plate 43 is a vertical plate, which is slidably connected to the slide rail 11 through the sliding seats 44 at both ends;

[0074] The connecting plate 45 is connected to the sliding plate 43 at one end and connected to the conveyor belt at the other end. The end connected to the conveyor belt can be configured into a U-shaped opening for easy clamping connection.

[0075] Preferably, a tension sensor 46 is connected between the rope threading plate 22 and the sliding plate 43 to monitor the tension of the tension rope. It has two functions:

[0076] 1. Rope breakage monitoring: When the monitored tension is lower than the first threshold, it means that part of the tensioning rope 21 has broken, and the overall tension value will become smaller;

[0077] 2. Anti-pinch monitoring: When the monitored tension is greater than the second threshold, it means that the rope unit 2 may have crossed or hooked with passengers or foreign objects during the lifting process, resulting in an abnormally large tension value. At this time, the start-stop alarm will be activated.

[0078] Specifically, the sliding shafts 42 include two, which are respectively located at both ends of the sliding plate 43 , and the tension sensor 46 is located between the two sliding shafts 42 to maintain force balance.

[0079] See also Figure 8 , as another important invention of the present invention, a relay unit 5 is also provided, which is located between the two traction columns 1;

[0080] The relay unit 5 includes a frame 51. The frame 51 has a very simple structure, including front and rear vertical plates, the bottom of which is connected by a base plate, and the top is connected by support frames on the left and right sides.

[0081] The height of the frame 51 is the same as that of the traction column 1 , and the tensioning rope 21 passes through the interior of the frame 51 and can move up and down within the frame 51 ;

[0082] Three corresponding pulley mechanisms are provided on the top of the frame 51 .

[0083] The pulley mechanism includes an outer rotating shaft 52 , an inner rotating shaft 53 , a fourth rotating wheel 54 and a flexible rope. The outer rotating shaft and the inner rotating shaft 53 are arranged parallel to the rope unit 2 .

[0084] The outer rotating shaft 52 is connected to the outer side of the top of the frame 51 , and three fourth rotating wheels 54 are provided thereon, that is, the three groups of pulley mechanisms share one outer rotating shaft 52 .

[0085] There are three inner rotating shafts 53 connected to the inner side of the top of the frame 51, arranged parallel to the inner rotating shafts of the adjacent pulley mechanisms, and the spacing between them matches the spacing between the adjacent rope units 2. A fourth rotating wheel 54 is passed through each inner rotating shaft 53, and is positioned opposite to one of the fourth rotating wheels 54 on the outer rotating shaft 52. A flexible rope is placed on the outer sides of the two fourth rotating wheels 54 arranged in pairs.

[0086] Of the two downward flexible ropes of the pulley mechanism, one is connected to a rope clamp 55 and the other is connected to a counterweight 56 . Each rope clamp 55 clamps four tensioning ropes 21 of a group of rope units 2 , and each group of rope units 2 is only connected to one rope clamp 55 .

[0087] Compared with the traditional railway platform safety protection system, the present invention replaces the traction column 1 with a lower-cost relay unit 5. The design of the relay unit 5 can not only ensure that the entire rope unit 2 passes through, but also maintain the tensioning rope passing through here in a gravity balance state. The gravity of the tensioning rope is balanced by the counterweight block 56. Only a small force needs to be applied to the tensioning rope 21 here to make it rise or fall. That is, when the motor drives the rope unit 2 to rise or fall, the tensioning rope 21 in the relay unit 5 will rise or fall synchronously without resistance.

[0088] The use of the relay unit 5 can reduce overall costs by approximately half. Furthermore, the traditional traction column 1, measuring approximately 600 x 600 mm, occupies a significant area on the platform, obstructing visibility. The relay unit 5, however, eliminates these complex mechanisms and is half the size, effectively eliminating the problem of obstructed visibility and improving safety.

[0089] As a further preferred solution, a locking device may be provided in the relay unit 5 to lock the pulley mechanism after the rope unit 2 is raised or lowered into position, thereby improving safety performance.

Claims

1. A novel railway platform safety protection system comprises a plurality of traction columns (1), a plurality of rope units (2) are connected between two adjacent traction columns (1), and the rope units (2) are driven to rise and fall by a lifting unit (3), characterized in that: The traction column (1) is provided with a plurality of vertically arranged slide rails (11); The lifting unit (3) comprises a lower rotating shaft (31) and an upper rotating shaft (32) horizontally connected to the lower end and the upper end of the traction column (1); the lower rotating shaft (31) and the upper rotating shaft (32) are arranged perpendicular to the rope, and a plurality of rotating wheels are arranged in gaps thereon; the slide rail (11) is located in the gap on one side of the rotating wheels; the rotating wheels on the lower rotating shaft (31) and the upper rotating shaft (32) are arranged relative to each other, connected to form a transmission mechanism through a transmission member, and driven by a motor to rotate synchronously; The sizes of the rotating wheels on the lower rotating shaft (31) or the upper rotating shaft (32) are different, and the sizes of a group of rotating wheels arranged opposite to each other are the same; The rope unit (2) includes two left and right rope-threading plates (22) and a tensioning rope (21) connected in the middle. The rope-threading plates (22) are connected to the slide rail (11) through connecting units (4). Each connecting unit (4) is also connected to a different transmission member, and drives the rope unit (2) to move up and down as the transmission member moves. The connecting unit (4) comprises: A linear bearing (41) is vertically embedded in the rope threading plate (22); A sliding shaft (42), one end of which passes through the linear bearing (41) and the rope-threading plate (22), and the other end of which is connected to the sliding plate (43); The sliding plate (43) is slidably connected to the slide rail (11) through the sliding seats (44) at both ends; A connecting plate (45), one end of which is connected to the sliding plate (43) and the other end of which is connected to the transmission member; A tension sensor (46) is also connected between the rope threading plate (22) and the sliding plate (43); It also includes a relay unit (5) located between the two traction columns (1); The relay unit (5) includes a frame (51), and the tension rope (21) passes through the interior of the frame (51) and can move up and down in the frame (51); A plurality of pulley mechanisms are provided on the top of the frame (51). Of the two flexible ropes extending downward from the pulley mechanism, one is connected to a rope clamp (55) and the other is connected to a counterweight (56). Each rope clamp (55) clamps a plurality of tension ropes (21) of a group of rope units (2). Each group of rope units (2) is connected to only one rope clamp (55). The pulley mechanism comprises an outer rotating shaft (52) and an inner rotating shaft (53), wherein the outer rotating shaft (52) and the inner rotating shaft (53) are arranged parallel to the rope unit (2); The outer rotating shaft is connected to the outer side of the top of the frame (51) and is shared by multiple pulley mechanisms. The same number of rotating wheels as the rope units (2) are passed through the outer rotating shaft. The inner rotating shaft (53) is connected to the inner side of the top of the frame (51) and is arranged in parallel with the inner rotating shafts (53) of the adjacent pulley mechanisms. The spacing is matched with the spacing of the adjacent rope units (2). Each inner rotating shaft (53) is passed through a rotating wheel, which is located opposite to one of the rotating wheels on the outer rotating shaft. A flexible rope is spanned on the outer sides of the two rotating wheels arranged in pairs.

2. A new railway platform safety protection system according to claim 1, characterized in that: The conveying member of the lifting unit (3) is a conveyor belt (36), and the rotating wheel is a pulley.

3. A new railway platform safety protection system according to claim 1, characterized in that: The plurality of rotating wheels on the lower rotating shaft (31) or the upper rotating shaft (32) are arranged in a progressive order according to size.

4. A new railway platform safety protection system according to claim 1, characterized in that: The number of rotating wheels on the lower rotating shaft (31) or the upper rotating shaft (32) is the same as the number of rope units (2).

5. A new railway platform safety protection system according to claim 1, characterized in that: The sliding shafts (42) include two, which are respectively located at two ends of the sliding plate (43), and the tension sensor (46) is located between the two sliding shafts (42).

6. A new railway platform safety protection system according to claim 1, characterized in that: The frame (51) has a height that matches that of the traction column (1), and includes front and rear vertical plates and a bottom plate. The rope unit (2) passes between the front and rear vertical plates, and the top is connected to a pulley mechanism via a support frame.

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