Semi-high platform door system adaptable to multiple vehicle types

Abstract

This invention belongs to the technical field of platform safety doors, specifically a half-height platform door system that can accommodate a variety of vehicle types. The system comprises fixed side boxes, sliding doors, a drive system, a movable extension arm, and a linear guide rail. The linear guide rail is fixedly connected to the fixed side boxes; the movable extension arm is slidably connected to the sliding door and the linear guide rail, with one end of the movable extension arm extending outside the fixed side box. The drive system is used to drive the sliding door to translate along the fixed side box. This system increases the movement space of each sliding door by 200-250mm when adjacent sliding doors are opened. This allows for a wide opening range for the sliding door to meet the parking needs of multiple vehicle types without using a front-to-back staggered layout of the sliding door bodies.

Description

Technical Field

[0001] The present invention belongs to the technical field of platform safety doors, and in particular relates to a half-height platform door system adaptable to various vehicle types. Background Art

[0002] As the rail transit networks of various cities continue to improve, the share of rail transit in public transportation is also increasing. The rail transit passenger flow is showing a growing trend. The situation where various subway lines share a section of railway area and stations is gradually increasing. For example, Shanghai Line 3 and Line 4, Yishan Road to Baoshan Road (a total of 10 stations) share a section of railway. The platform and platform door equipment need to be connected with two types of vehicles (03A01 and 04A01). Due to the inconsistency of the body length and door position of the two types of vehicles, there is a deviation in the position of door A after the two types of vehicles stop. Figure 1 As shown:

[0003] In order to meet the requirements of docking of multiple types of vehicles with existing equipment (±250mm parking error), the opening of the sliding door at the same position on the platform door needs to be increased to facilitate the docking requirements of two types of vehicles after stopping at the station.

[0004] The existing half-height platform door sliding door 2' needs to be provided with a sliding support structure on the upper part of the sliding door 2' during closing or moving. The existing structure is implemented in the form of a fixed extension arm 3 (such as the attached Figure 2 As shown), the fixed extension arm 3 can ensure that the sliding door 2' does not separate from the fixed side box 1' when closing, and at the same time plays a guiding role when opening the door. The fixed extension arm 3 used in the existing structure needs to protrude from the width of the sliding door 2' by about 200-250mm, see Figure 3 When the sliding door 2' of an adjacent unit is open, the length of the fixed extension arm 3 takes up some of the required space. While a small sliding door opening would not be affected if the unit spacing were the same, the fixed extension arm would affect the opening process at larger openings. The fixed extension arm takes up space when the sliding door is open, limiting the opening range. Furthermore, the two fixed extension arms are prone to collision, causing door opening failures.

[0005] The existing sliding door with fixed extension arm cannot achieve a wide opening and cannot meet the docking requirements of more than two types of vehicles after stopping at the station. Based on this, it is necessary to add a layer of sliding doors, using three layers of half-height platform doors (fixed side box 1', front sliding door 2B and rear sliding door 2C). The closed state is as shown in the attached figure. Figure 4 The door opening status is shown in the attached Figure 5The three-and-a-half-story platform doors feature a front-to-back offset sliding door design, which increases the overall door thickness and reduces the space in the platform waiting area. Furthermore, when closed, the gap between the front sliding door and the vehicle door is large (up to 250mm). This creates a risk of passengers being pinched between the train door and the platform door when rushing through the doors, posing a safety hazard.

[0006] How to achieve a large opening of the sliding door to meet the parking needs of different models without using a front-to-back staggered layout of the sliding door body has become a difficult problem. Summary of the Invention

[0007] In order to address the shortcomings of the existing technology, the present invention provides a half-height platform door system that can adapt to a variety of vehicle models. It increases the movement space of a single door by 200-250mm when adjacent sliding doors are opened, and achieves a large opening degree of the sliding door to meet the parking needs of multiple vehicle models without using a front-to-back staggered layout of the sliding door body.

[0008] In order to solve the deficiencies of the prior art, the present invention provides the following technical solutions:

[0009] A half-height platform door system that can adapt to various vehicle models, including fixed side boxes, sliding doors, drive systems, movable extension arms and linear guides;

[0010] The linear guide rail is fixedly connected to the fixed side box;

[0011] The movable extension arm is slidably connected to the sliding door and the linear guide rail, and one end of the movable extension arm can extend to the outside of the fixed side box;

[0012] The driving system is used to drive the sliding door to translate along the fixed side box.

[0013] Preferably, it further comprises a slider; the slider is slidably connected to the linear guide rail and fixedly connected to the movable extension arm; and limit blocks are provided at both ends of the linear guide rail.

[0014] Preferably, the linear guide rail is fixed to the end portion of the upper end surface of the fixed side box.

[0015] Preferably, a horizontal guide groove is provided on the upper portion of the side surface of the sliding door away from the fixed side box; the upper end of the side surface of the sliding door away from the fixed side box is a sliding contact surface, and the sliding contact surface is located above the guide groove.

[0016] Preferably, the movable extension arm includes an extension part 1 and an extension part 2; the extension part 1 is flat, and the lower end face is slidably connected to the linear guide rail; the extension part 2 has an L-shaped cross-section, is longer than the extension part 1, is connected to the upper extension part 1, one end is flush with one end of the extension part, and the other end can slide to the outside of the fixed side box, and the extension part 2 is slidably connected to the sliding contact surface.

[0017] Preferably, a plurality of guide wheels and two sliding contact parts are provided on the lower end face of the second extension part; the sliding contact part is flat, vertically arranged, and contacts the sliding contact surface; the guide wheel is located between the two sliding contact parts and is slidably connected to the sliding contact surface.

[0018] Preferably, limit plates are provided at both ends of the sliding contact surface.

[0019] Preferably, it further comprises a top cover, which is fixed on the fixed side box and is used to cover the fixed side box. The end of the top cover is provided with a channel for facilitating the sliding of the movable extension arm and the sliding door.

[0020] Preferably, the driving system includes a door machine controller, a plurality of first motors, and a plurality of second motors; the sliding door includes a left sliding door and a right sliding door;

[0021] The door machine controller drives the left sliding door to move a corresponding distance through the first motor according to the vehicle model information and the vehicle's opening and closing command or door closing command; and drives the right sliding door to move a corresponding distance through the second motor according to the vehicle model information and the vehicle's opening and closing command or door closing command.

[0022] Preferably, the first motor and the second motor adopt electromagnetic braking.

[0023] Beneficial effects of the present invention:

[0024] The present invention eliminates the protruding extension arm structure of the door body through a movable extension arm and a linear guide rail, and increases the movement space of a single door by 200-250mm when adjacent sliding doors are opened. Without using the front and rear staggered layout of the sliding door body, the sliding door can achieve a large opening to meet the parking needs of multiple models.

[0025] The newly added half-height platform door system of the present invention can be adapted to various types of vehicles and can be used not only for special co-line stations but also for platform equipment requirements with large-opening door bodies.

[0026] This invention solves the difficulty of platform door layout in subway stations with multiple types of vehicles on the same line. Under the premise of ensuring stable use, the three-layer layout is upgraded to two layers, ensuring the rationality of the door layout on the same plane basis, greatly improving the effective space of the platform waiting area, and can increase 19.5m on one side. 2 The space can accommodate more waiting passengers in cities where space is precious.

[0027] The present invention accurately opens the door according to the parking position of the vehicle model, abandons the fully open mode, saves the door opening and closing time and saves the energy loss caused by excessive door opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the door positions of Shanghai Metro Line 3 and Line 4 after the train stops;

[0029] Figure 2 It is a structural diagram of an existing sliding door;

[0030] Figure 3 This is a schematic diagram of an existing sliding door in an open state;

[0031] Figure 4 This is a schematic diagram of the existing three-and-a-half-story platform door in the closed state;

[0032] Figure 5 This is a schematic diagram of the existing three-and-a-half-story platform door in its open state;

[0033] Figure 6 A schematic diagram of the installation of the movable extension arm and the linear guide provided by the present invention;

[0034] Figure 7 A schematic diagram of the movable extension arm and linear guide provided by the present invention;

[0035] Figure 8 A schematic diagram of the movable extension arm and sliding door provided by the present invention;

[0036] Figure 9 This is a schematic diagram of the closing door system of the half-height platform door that can adapt to various types of vehicles;

[0037] Figure 10 This is a door opening diagram of the half-height platform door system that can adapt to various types of vehicles;

[0038] Figure 11 A schematic diagram of the top cover provided by the present invention;

[0039] Among them, 1 and 1' are fixed side boxes; 2 and 2' are sliding doors; 21 is a sliding contact surface; 211 is a limit plate; 22 is a guide groove; 3 is a fixed extension arm;

[0040] 4 is a movable extension arm; 41 is an extension part 1; 42 is an extension part 2; 43 is a sliding contact part;

[0041] 5 is the slider; 6 is the linear guide; 7 is the guide wheel; 8 is the limit block; 9 is the top cover;

[0042] A is the door; 03A01 is the car body of Line 3; 04A01 is the car body of Line 4; 2B is the front sliding door; 2C is the rear sliding door. DETAILED DESCRIPTION

[0043] The present invention will be further described below in conjunction with the embodiments. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.

[0044] The present invention provides a half-height platform door system that can adapt to various types of vehicles. Figure 6 、 Figure 9 and Figure 10 , including a fixed side box 1, a sliding door 2, a driving system, a movable extension arm 4 and a linear guide 6; the linear guide 6 is fixedly connected to the fixed side box 1; the movable extension arm 4 is slidably connected to the sliding door 2 and to the linear guide 6, one end of the movable extension arm 4 can be extended to the outside of the fixed side box 1 by sliding, and the driving system is used to drive the sliding door to translate along the fixed side box.

[0045] The linear guide rail 6 can be fixedly connected to the upper end surface of the fixed side box 1, or it can be connected to other parts of the fixed side box. For the sake of aesthetics and structural simplicity, it is preferred that the linear guide rail 6 can be fixedly connected to the upper end surface of the fixed side box 1.

[0046] When the sliding door needs to be opened, the driving system drives the sliding door to move. When the sliding door moves, the retractable extension structure plays a guiding and supporting role. The fully opened state of the sliding door is shown in the figure. Figure 10 The movable extension arm gradually moves from the rear end of the sliding door to the front end of the sliding door. The movable extension arm does not occupy the rear space of the sliding door, saving space when the door is open and avoiding collision.

[0047] When the sliding door needs to be closed, the driving system drives the sliding door to move, and the retractable extension structure plays a guiding and supporting role. The state of the sliding door being fully closed is shown in the figure. Figure 9 When the door is closed, the movable extension arm extends to the outside of the fixed side box to ensure that the sliding door does not separate from the fixed side box.

[0048] For details, see Figure 6 、 Figure 7 and Figure 10 The semi-high platform door system, which can accommodate a variety of vehicle types, also includes a slider 5, which is slidably connected to a linear guide 6 and fixedly connected to a movable extension arm 4. Limit blocks 8 are provided at each end of the linear guide to limit the slider's position. The linear guide 6 is fixed to the end of the upper end surface of the fixed side box 1.

[0049] See also Figure 8 、 Figure 9 and Figure 10 A horizontal guide groove 22 is provided on the upper portion of the side of the sliding door 2 away from the fixed side box 1. The upper end of the sliding door 2 does not contact the fixed side box 1. The upper end of the side of the sliding door 2 away from the fixed side box 1 is a sliding contact surface 21, which is located above the guide groove 22.

[0050] See also Figure 6 、 Figure 7 、 Figure 9 and Figure 10 The movable extension arm 4 includes a first extension portion 41 and a second extension portion 42. The first extension portion 41 is flat, with its lower end fixedly connected to the upper end of the slider 5 via bolts. The second extension portion 42 has an L-shaped cross-section and is longer than the first extension portion 41. It is connected to the upper extension portion 41, with one end flush with the end of the first extension portion 41 and the other end capable of sliding outside the fixed side box 1. The second extension portion 42 is slidably connected to the sliding contact surface 21 of the sliding door 2. The lower end of the second extension portion 42 extends into the guide groove 22.

[0051] See also Figure 6 、 Figure 7 and Figure 8 The lower end surface of the second extension portion 42 is provided with a plurality of guide wheels 7 and two sliding contact portions 43; the sliding contact portion 43 is a flat plate, vertically provided, and contacts the sliding contact surface 21 of the sliding door 2. The guide wheel 7 is located between the two sliding contact portions 43 and is in sliding connection with the sliding contact surface 21 of the sliding door 2.

[0052] See also Figure 8 and Figure 10 Limiting plates 211 are provided at both ends of the sliding contact surface 21 , and the limiting plates 211 cooperate with the sliding contact portion 43 to limit the movable extension arm 4 .

[0053] If the friction between the slider and the linear guide is small, when the sliding door is opened, the sliding door and the movable extension arm are relatively stationary, and the slider slides along the linear guide. When the slider moves to the end of the linear guide and is limited by the limit block, the slider cannot slide any further, that is, the movable extension arm cannot move any further. The position of the movable extension arm is as follows: Figure 10 As shown, at this time, the movable extension arm is not exposed outside the fixed side box, and then the sliding door continues to move, and it becomes a relative sliding between the sliding door and the movable extension arm until the sliding door is fully opened, as shown in FIG. Figure 10 As shown in the figure, it can be seen that the movable extension arm is restricted to the linear guide rail and does not take up space. When the sliding door needs to be closed, the slider also slides along the linear guide rail. When the slider moves to the end of the linear guide rail and is limited by the limit block, the slider can no longer slide, that is, the movable extension arm can no longer move. The position of the movable extension arm is shown in the figure. Figure 9 As shown, at this time, the outer end of the extension part 2 extends to the outside of the fixed side box, and the sliding door continues to move. At this time, it becomes a relative sliding between the sliding door and the movable extension arm. The extension part 2 can support and guide the sliding door until the sliding door is completely closed. Figure 9 shown.

[0054] If the friction between the sliding door and the movable extension arm is less than the friction between the slider and the linear guide rail, when the sliding door is opened, the movable extension arm and the linear guide rail are relatively stationary, and the sliding door and the movable extension arm slide relative to each other. When the sliding contact portion of the sliding door hits the limit plate at the end of the sliding contact surface, the movable extension arm and the sliding door are relatively stationary, and the movable extension arm slides along the linear guide rail. When the slider moves to the end of the linear guide rail and is limited by the limit block, the sliding door is fully opened. Figure 10 When the sliding door is closed, the movable extension arm and the linear guide rail are relatively stationary, and the sliding door and the movable extension arm slide relative to each other. When the sliding contact portion of the sliding door hits the limit plate at the end of the sliding contact surface, the movable extension arm and the sliding door are relatively stationary. At this time, the movable extension arm slides along the linear guide rail. When the slider moves to the end of the linear guide rail and is limited by the limit block, the sliding door is completely closed. Figure 9 shown.

[0055] Of course, if the friction between the sliding door and the movable extension arm is equivalent to the friction between the slider and the linear guide rail, the movable extension arm will also slide along the linear guide rail while the sliding door and the movable extension arm slide relative to each other. Since limit blocks are set at both ends of the linear guide rail and limit plates are set at both ends of the sliding contact surface, the sliding range of the sliding door can be limited.

[0056] In an alternative embodiment of the present invention, see Figure 11 The semi-high platform door system, which can accommodate various types of vehicles, also includes a top cover 9, which is fixed to the fixed side box 1 and is used to cover the fixed side box 1. The end of the top cover 9 is provided with a channel that facilitates the sliding of the extension portion 42 and the sliding door 2. When the sliding door 2 is fully opened, the sliding door 2 is located below the top cover 9.

[0057] The present invention eliminates the protruding extension arm structure of the door body through a movable extension arm and a linear guide rail, providing an additional 200-250mm of movement space for a single door when adjacent sliding doors are opened, and achieving a large opening degree of the sliding door to meet the parking needs of multiple models without using a front-to-back staggered layout of the sliding door body.

[0058] In addition, the present invention optimizes the drive system and controls the sliding doors on both sides separately according to the vehicle model, achieving precise door opening and eliminating the need for a fully open mode. This saves door opening and closing time and reduces energy loss caused by excessive door opening. The specific solution is as follows:

[0059] Specifically, the drive system includes a door machine controller, multiple first motors, and multiple second motors; the sliding doors include a left sliding door and a right sliding door; the door machine controller drives the left sliding door to move a corresponding distance via the first motor based on the vehicle model information and the vehicle's opening or closing command; and drives the right sliding door to move a corresponding distance via the second motor based on the vehicle model information and the vehicle's opening or closing command. The door machine controller calculates the movement distance of each left and right sliding door for each vehicle model based on the vehicle model information, the position and length of the fixed doors, and other information as the corresponding door opening plan for the vehicle model, and stores the door opening plans for different vehicle models. Then, when the vehicle arrives at the station, the corresponding door opening plan is selected based on the vehicle model information to control the left and right sliding doors to move a corresponding distance to achieve a precise door opening effect. At this time, the left sliding door and the right sliding door are controlled separately. It is not necessary for the left sliding door and the right sliding door to be fully opened. One sliding door may be fully opened, the other sliding door partially opened, or both sliding doors may not be fully opened to meet the requirement that the train passenger compartment door stops ≥±250mm, which saves door opening and closing time, saves energy loss caused by excessive door opening, and further reduces the risk of sliding door collision.

[0060] The first and second motors preferably utilize electromagnetic brakes, particularly those with tail-end electromagnetic brakes. After the first and second motors drive the left and right sliding doors to their designated positions, the electromagnetic brakes immobilize the first and second motors, achieving a fixed stop. This allows the sliding doors to be locked at various opening positions, facilitating passenger boarding and exiting the train. The connections between the first motor and the left sliding door, and the second motor and the right sliding door, are conventional and will not be described in detail.

[0061] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A half-height platform door system that can adapt to various types of vehicles, characterized by: Includes fixed side boxes, sliding doors, drive system, movable extension arms and linear guides; The linear guide rail is fixedly connected to the fixed side box; The movable extension arm is slidably connected to the sliding door and the linear guide rail, and one end of the movable extension arm can extend to the outside of the fixed side box; The driving system is used to drive the sliding door to translate along the fixed side box; A horizontal guide groove is provided on the upper portion of the side of the sliding door away from the fixed side box; the upper end of the side of the sliding door away from the fixed side box is a sliding contact surface, and the sliding contact surface is located above the guide groove; The movable extension arm includes an extension portion 1 and an extension portion 2; the extension portion 1 is flat, and its lower end surface is slidably connected to the linear guide rail; the extension portion 2 is L-shaped in cross section, is longer than the extension portion 1, is connected to the upper extension portion 1, has one end flush with one end of the extension portion, and the other end can slide to the outside of the fixed side box, and the extension portion 2 is slidably connected to the sliding contact surface; A plurality of guide wheels and two sliding contact parts are provided on the lower end surface of the second extension part; the sliding contact part is flat, vertically set up, and contacts the sliding contact surface; the guide wheel is located between the two sliding contact parts and is slidably connected to the sliding contact surface.

2. A half-height platform door system adaptable to various vehicle types according to claim 1, characterized in that: It also includes a slider; the slider is slidably connected to the linear guide rail and fixedly connected to the movable extension arm; and limit blocks are provided at both ends of the linear guide rail.

3. The half-height platform door system adaptable to various vehicle types according to claim 1 is characterized in that: The linear guide rail is fixed to the end portion of the upper end surface of the fixed side box.

4. The half-height platform door system adaptable to various vehicle types according to claim 1 is characterized in that: Limiting plates are provided at both ends of the sliding contact surface.

5. The half-height platform door system adaptable to various vehicle types according to claim 1 is characterized in that: It also includes a top cover, which is fixed on the fixed side box and is used to cover the fixed side box. The end of the top cover is provided with a channel for facilitating the sliding of the movable extension arm and the sliding door.

6. The half-height platform door system adaptable to various vehicle types according to claim 1, characterized in that: The driving system includes a door machine controller, a plurality of first motors, and a plurality of second motors; the sliding door includes a left sliding door and a right sliding door; The door machine controller drives the left sliding door to move a corresponding distance through the first motor according to the vehicle model information and the vehicle's opening and closing command or door closing command; and drives the right sliding door to move a corresponding distance through the second motor according to the vehicle model information and the vehicle's opening and closing command or door closing command.

7. The half-height platform door system adaptable to various vehicle types according to claim 6, characterized in that: The first motor and the second motor adopt electromagnetic braking.

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