A safety door structure with double-sided pull rope lifting

Abstract

This utility model provides a double-sided pull-rope lifting safety gate structure, relating to the field of platform safety gate technology. It includes a fixed column, a first frame plate, and a second frame plate. The first and second frame plates are respectively disposed on both sides of the fixed column, and safety gate pull ropes are connected to both the first and second frame plates. The fixed column is equipped with a first fixed pulley and a second fixed pulley coaxially arranged with the first fixed pulley. The first and second fixed pulleys are respectively disposed on both sides of the fixed column. A first transmission belt for connecting to the first frame plate is provided on the first fixed pulley, and a second transmission belt for connecting to the second frame plate is provided on the second fixed pulley. This utility model uses two frame plates connected by pull ropes to form a safety gate, with the two frame plates located on both sides of the fixed column. The two frame plates are simultaneously raised and lowered via two coaxially connected fixed pulleys. The center of gravity of the entire safety gate structure is located within the fixed column, making the fixed column less prone to deformation and tipping, thus ensuring high safety.

Description

Technical Field

[0001] This utility model relates to the field of platform safety door technology, and in particular, it relates to a safety door structure with double-sided pull rope lifting. Background Technology

[0002] With urban development, the demand for rail vehicles to serve transportation functions between urban areas and suburbs is increasing. As different regions develop in diverse ways, the actual needs for rail vehicles vary greatly, including urban subways (including underground railways and surface light rail), and trains between cities (including bullet trains, high-speed trains, and regular trains), etc., all of which are collectively referred to as rail transit vehicles.

[0003] These rail transit platforms experience high passenger flow and high-speed rail operations, especially high-speed rail platforms, which are often very spacious and densely populated. Platform screen doors are necessary to separate platform passengers from trains and prevent accidental falls. To ensure sufficient height for the pull-rope safety doors when lowered, while minimizing height occupation after lowering, a multi-unit pull-rope door structure design has been developed. For example, Chinese invention patent CN120270275A provides a segmented rising pull-rope safety door structure, relating to the field of platform safety door technology. It includes a fixed column and a lifting unit. The lifting unit includes a main frame and a mounting frame. The main frame has a first roller and a second roller. The first roller is connected to a first belt, and the second roller is connected to a second belt. A sliding block is installed on the first belt. The fixed column has a drive unit, a first slide rail, and a second slide rail. A limit block is installed on the second slide rail. The mounting frame has a first plate and a second plate. Safety door pull ropes are connected to both the first and second plates. This invention uses multiple plates connected by a pull rope to form a safety gate. The multiple plates rise synchronously in the initial stage of the safety gate's rise. After the sliding block rises to a predetermined height, the second plate located below rises at a faster speed, so that the safety gate has sufficient protective height when it is lowered, occupies little height when it is raised, and will not accidentally trap objects and cause hidden dangers. The whole structure is simple, not easy to be damaged, and has high safety.

[0004] However, the above-mentioned pull-rope safety gate structure has the following defects: the first plate and the second plate are both located on the same side of the fixed column, which causes the center of gravity of the entire platform column to shift to one side or even shift out of the position of the fixed column. This causes the entire fixed column to bend inevitably. After a long period of use, the pull-rope door panel cannot be raised and lowered stably on the deformed fixed column. The safety gate may get stuck and become unusable. In severe cases, it may cause the platform door column to tip over and injure passengers, resulting in poor safety.

[0005] Therefore, in order to solve the above problems, it is necessary for us to design a reasonable and efficient multi-rope safety gate structure. Utility Model Content

[0006] The purpose of this utility model is to provide a safety gate structure with double-sided pull rope lifting. It uses two frame plates connected by pull ropes to form a safety gate, and the two frame plates are located on both sides of a fixed column. The two frame plates are simultaneously lifted and lowered by two coaxially connected fixed pulleys. The center of gravity of the entire safety gate structure is located inside the fixed column, which is not easy to deform or tilt, thus ensuring high safety.

[0007] To achieve the above objectives, this utility model employs the following technical solution: A safety gate structure with double-sided pull rope lifting includes a fixed column, a first frame plate, and a second frame plate. The first frame plate and the second frame plate are respectively disposed on both sides of the fixed column, and safety gate pull ropes are connected to both the first frame plate and the second frame plate. The fixed column is provided with a first fixed pulley and a second fixed pulley coaxially disposed with the first fixed pulley. The first fixed pulley and the second fixed pulley are respectively disposed on both sides of the fixed column. The first fixed pulley is provided with a first transmission belt for connecting with the first frame plate, and the second fixed pulley is provided with a second transmission belt for connecting with the second frame plate.

[0008] As a preferred embodiment of this invention, a motor is provided on the fixed column, and a traction belt for connecting with the first frame plate is provided on the motor.

[0009] As a preferred embodiment of this invention, the diameter of the first fixed pulley is not less than the diameter of the second fixed pulley, and the height of the first support plate is not higher than the height of the second support plate.

[0010] As a preferred embodiment of this utility model, the fixing column is provided with a first slide rail for facilitating the sliding of the first shelf; the side of the fixing column away from the first slide rail is provided with a second slide rail for facilitating the sliding of the second shelf.

[0011] As a preferred embodiment of this invention, the first frame plate is provided with a first slider for connecting with the first slide rail; the second frame plate is provided with a second slider for connecting with the second slide rail.

[0012] As a preferred embodiment of this invention, there are two of each of the first and second slide rails.

[0013] As a preferred embodiment of the present invention, the first frame plate is provided with a first connecting block for connecting with the first transmission belt; the second frame plate is provided with a second connecting block for connecting with the second transmission belt.

[0014] As a preferred embodiment of this invention, the first connecting block and the second connecting block are located on the same side of the first fixed pulley.

[0015] As a preferred embodiment of this utility model, both the first and second frame plates are provided with a rope fixing block for connecting to the safety door pull rope.

[0016] As a preferred embodiment of this utility model, the lower end of the fixed column is provided with a first compensation wheel for compensating the first fixed pulley and a second compensation wheel for compensating the second fixed pulley.

[0017] The beneficial effects of this utility model of a double-sided pull-rope lifting safety door structure are as follows: the safety door is formed by connecting two frame plates with pull ropes, and the two frame plates are located on both sides of the fixed column. The two frame plates are simultaneously lifted and lowered by two coaxially connected fixed pulleys. The center of gravity of the entire safety door structure is located inside the fixed column, and the fixed column is not easy to deform or tilt, thus ensuring high safety. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a double-sided pull-rope lifting safety door structure according to the present invention; Figure 2 This is a three-dimensional structural diagram of the double-sided pull-rope lifting safety door structure of this utility model from another angle. In the diagram: 3. Fixed column, 31. First fixed pulley, 32. Second fixed pulley, 33. First transmission belt, 34. Second transmission belt, 35. First slide rail, 36. Second slide rail, 37. First compensating wheel, 38. Second compensating wheel, 1. First frame plate, 11. First connecting block, 2. Second frame plate, 21. Second connecting block. Detailed Implementation

[0019] The following are specific embodiments of the present invention, which further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0020] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement and steps of the modules and steps set forth in these embodiments do not limit the scope of the present invention.

[0021] At the same time, it should be understood that, for ease of description, the process shown in the attached diagram is not performed in isolation, but rather involves multiple steps that overlap.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0024] Techniques, methods, and systems known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and systems should be considered part of this application specification.

[0025] Example 1: As Figures 1 to 2 The illustration shows only one embodiment of the present invention. A safety door structure with double-sided pull rope lifting includes a fixed column 3, a first frame plate 1, and a second frame plate 2. The first frame plate 1 and the second frame plate 2 are respectively disposed on both sides of the fixed column 3. Safety door pull ropes are connected to both the first frame plate 1 and the second frame plate 2. The fixed column 3 is provided with a first fixed pulley 31 and a second fixed pulley 32 coaxially disposed with the first fixed pulley 31. The first fixed pulley 31 and the second fixed pulley 32 are respectively disposed on both sides of the fixed column 3. The first fixed pulley 31 is provided with a first transmission belt 33 for connecting with the first frame plate 1, and the second fixed pulley 32 is provided with a second transmission belt 34 for connecting with the second frame plate 2.

[0026] In this utility model, the fixed column 3 is the gatepost of the platform screen door. The first frame plate 1 and the second frame plate 2 installed on the fixed column 3 can be raised and lowered on the fixed column 3. Of course, the first frame plate 1 and the second frame plate 2 are connected to the safety door pull rope. The two ends of the safety door pull rope are respectively connected to the first frame plate 1 and / or the second frame plate 2 of the two fixed columns 1, forming a pull rope safety door structure. When the first frame plate 1 and the second frame plate 2 are raised on the fixed column 1, the safety door is raised, which makes it convenient for passengers to pass under the safety door pull rope for getting on and off the train when it stops. Conversely, when the first frame plate 1 and the second frame plate 2 are lowered on the fixed column 1, the safety door is closed, which blocks passengers from passing through and is used for safety protection when the train is running.

[0027] In this utility model, a motor 4 is provided on the fixed column 3, and a traction belt for connecting with the first frame plate 1 is provided on the motor 4. The motor 4 pulls the first frame plate 1 up through the traction belt, thereby driving the first transmission belt 33 to rotate. The first fixed pulley 31 and the second fixed pulley 32 rotate coaxially, so that the second transmission belt 34 drives the second frame plate 2 to rise as well.

[0028] Of course, in this utility model, the first connecting block 11 and the second connecting block 21 are located on the same side of the first fixed pulley 31, that is, the first frame plate 1 and the second frame plate 2 are raised or lowered at the same time.

[0029] In this utility model, the diameter of the first fixed pulley 31 is not less than the diameter of the second fixed pulley 32, and the height of the first support plate 1 is not higher than the height of the second support plate 2.

[0030] In other words, the diameter of the first fixed pulley 31 is larger. When the first fixed pulley 31 and the second fixed pulley 32 rotate on the same axis, their angular velocities are the same. Therefore, the linear velocity of the first fixed pulley 31 is greater than that of the second fixed pulley 32. This means that the transmission speed of the first transmission belt 33 is greater than that of the second transmission belt 34, which ultimately results in the lifting speed of the first support plate 1 being greater than that of the second support plate 2.

[0031] During the process of the safety door rising, initially, the height of the first platform 1 is lower than the height of the second platform 2. Then, the first platform 1 catches up with the second platform 2 until finally, the first platform 1 and the second platform 2 rise to the highest point of the fixed column 3 at the same time.

[0032] This utility model discloses a double-sided pull-rope lifting safety door structure, which uses two frame plates connected by pull ropes to form a safety door. The two frame plates are located on both sides of a fixed column, and the two frame plates are simultaneously raised and lowered through two coaxially connected fixed pulleys. The center of gravity of the entire safety door structure is located inside the fixed column, which is not easily deformed or tilted, thus ensuring high safety.

[0033] Example 2, still as Figures 1 to 2 As shown, this is only one embodiment of the present utility model. Based on the first embodiment, in the double-sided pull rope lifting safety door structure of the present utility model, the fixed column 3 is provided with a first slide rail 35 for facilitating the sliding of the first frame plate 1; the fixed column 3 is provided with a second slide rail 36 for facilitating the sliding of the second frame plate 2 on the side away from the first slide rail 35.

[0034] Of course, the first frame plate 1 is provided with a first slider for connecting with the first slide rail 35; the second frame plate 2 is provided with a second slider for connecting with the second slide rail 36.

[0035] It should be noted that there are two of each of the first slide rail 35 and the second slide rail 36.

[0036] At the same time, the number of first sliders on each first slide rail 35 is at least one, and the number of second sliders on each second slide rail 36 is also at least one.

[0037] In this utility model, the first frame plate 1 is provided with a first connecting block 11 for connecting with the first transmission belt 33; the second frame plate 2 is provided with a second connecting block 21 for connecting with the second transmission belt 34.

[0038] In this utility model, both the first frame plate 1 and the second frame plate 2 are provided with a rope fixing block for connecting with the safety door pull rope.

[0039] In this utility model, the lower end of the fixed column 3 is provided with a first compensation wheel 37 for compensating the first fixed pulley 31 and a second compensation wheel 38 for compensating the second fixed pulley 32.

[0040] In fact, the first transmission belt 33 is an annular belt that passes over the first fixed pulley 31 and the first compensating pulley 37 respectively; similarly, the second transmission belt 34 is also an annular belt that passes over the second fixed pulley 32 and the second compensating pulley 38 respectively.

[0041] Finally, the fixed column 3, the first frame plate 1, and the second frame plate 2 are all integrally formed parts, making the entire platform door structure stronger and safer.

[0042] This utility model discloses a double-sided pull-rope lifting safety door structure, which uses two frame plates connected by pull ropes to form a safety door. The two frame plates are located on both sides of a fixed column, and the two frame plates are simultaneously raised and lowered through two coaxially connected fixed pulleys. The center of gravity of the entire safety door structure is located inside the fixed column, which is not easily deformed or tilted, thus ensuring high safety.

[0043] This utility model is not limited to the specific embodiments described above, and various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made to the above embodiments based on the technical essence of this utility model should be included within the protection scope of this utility model.

Claims

1. A safety door structure with double-sided pull rope lifting, characterized in that: The device includes a fixed column (3), a first frame plate (1), and a second frame plate (2). The first frame plate (1) and the second frame plate (2) are respectively located on both sides of the fixed column (3). Safety door pull ropes are connected to both the first frame plate (1) and the second frame plate (2). The fixed column (3) is provided with a first fixed pulley (31) and a second fixed pulley (32) coaxially arranged with the first fixed pulley (31). The first fixed pulley (31) and the second fixed pulley (32) are respectively located on both sides of the fixed column (3). The first fixed pulley (31) is provided with a first transmission belt (33) for connecting with the first frame plate (1), and the second fixed pulley (32) is provided with a second transmission belt (34) for connecting with the second frame plate (2).

2. The safety door structure with double-sided pull rope lifting according to claim 1, characterized in that: A motor (4) is provided on the fixed column (3), and a traction belt for connecting with the first frame plate (1) is provided on the motor (4).

3. The safety door structure with double-sided pull rope lifting according to claim 1, characterized in that: The diameter of the first fixed pulley (31) is not less than the diameter of the second fixed pulley (32), and the height of the first support plate (1) is not higher than the height of the second support plate (2).

4. The safety door structure with double-sided pull rope lifting according to claim 1, characterized in that: The fixed column (3) is provided with a first slide rail (35) for facilitating the sliding of the first shelf (1); the fixed column (3) is provided with a second slide rail (36) on the side away from the first slide rail (35) for facilitating the sliding of the second shelf (2).

5. The safety door structure with double-sided pull rope lifting according to claim 4, characterized in that: The first frame plate (1) is provided with a first slider for connecting with the first slide rail (35); the second frame plate (2) is provided with a second slider for connecting with the second slide rail (36).

6. The safety door structure with double-sided pull rope lifting according to claim 5, characterized in that: The number of the first slide rail (35) and the second slide rail (36) are both two.

7. The safety door structure with double-sided pull rope lifting according to claim 1, characterized in that: The first frame plate (1) is provided with a first connecting block (11) for connecting with the first transmission belt (33); the second frame plate (2) is provided with a second connecting block (21) for connecting with the second transmission belt (34).

8. A safety door structure with double-sided pull rope lifting as described in claim 7, characterized in that: The first connecting block (11) and the second connecting block (21) are located on the same side of the first fixed pulley (31).

9. A safety door structure with double-sided pull rope lifting according to claim 1, characterized in that: Both the first frame plate (1) and the second frame plate (2) are provided with a rope fixing block for connecting with the safety door rope.

10. A safety door structure with double-sided pull rope lifting according to claim 1, characterized in that: The lower end of the fixed column (3) is provided with a first compensation wheel (37) for compensating the first fixed pulley (31) and a second compensation wheel (38) for compensating the second fixed pulley (32).

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