Semi-closed lifting type platform door

Abstract

The utility model relates to the technical field of platform doors, in particular to a semi-closed lifting type platform door which comprises a plurality of platform door framework units, each platform door framework unit comprises a plurality of door leaves, two stand columns symmetrically arranged on the two sides of each door leaf and a driving assembly, the two sides of each door leaf are in sliding connection with the stand columns respectively, and the door leaves slide in the height direction of the stand columns. The driving assembly is used for driving the door leaves to ascend or descend. The protection detection unit is respectively connected with each platform door framework unit and is used for detecting the lifting state of the door leaf, detecting whether an obstacle exists in a door leaf moving area or not and detecting the edge pressure of the door leaf; the control unit comprises a plurality of control buttons or control switches and is used for controlling the door leaf to move or stop; and the power supply unit is respectively connected with each platform door framework unit, the protection detection unit and the control unit and is used for providing an electric energy source. According to the utility model, the safety of passengers can be guaranteed, and the driving efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the field of platform screen door technology, and in particular to a semi-enclosed lifting platform screen door. Background Technology

[0002] With the rapid development of high-speed rail and intercity railways and the ever-increasing passenger demand, urban populations are expanding rapidly, urban land is becoming increasingly scarce, and traffic is becoming more and more congested. People are placing stricter demands on the noise emitted by high-speed rail and intercity railways and on the urban environment. Public transport-style operation is a development trend, and platform waiting is a basic element of public transport-style operation and an inevitable requirement. Platform doors are important equipment for ensuring passenger safety, improving train operation efficiency, and improving the waiting environment when waiting on the platform. They can effectively avoid and prevent safety accidents that may easily occur when trains pass through stations, such as wind pressure, passengers' belongings falling onto the tracks, or passengers jumping onto the tracks to retrieve items, thus posing a threat to passenger safety. They are an inevitable trend supporting the rapid development of rail transit.

[0003] Currently, traditional platform screen doors suffer from mismatches between trains and doors, while rope-operated lifting platform screen doors present safety concerns. Traditional platform screen doors are primarily swing-type glass doors, which have limitations such as small opening angles, limited compatibility with different train models, high costs, long construction periods, and high safety risks during construction. Currently, platform screen door installation on operating lines can only be done through two methods: closed platform installation and installation during designated window periods. Based on pilot implementations by various railway bureaus, installation during designated window periods has become the mainstream method for future platform screen door installation projects. Therefore, stations need to find a new type of platform screen door that can not only ensure passenger safety but also improve train operation efficiency. Utility Model Content

[0004] Therefore, this utility model provides a semi-enclosed lifting platform door to overcome the problem that existing platform doors cannot both ensure passenger safety and improve train operation efficiency.

[0005] To achieve the above objectives, this utility model provides a semi-enclosed lifting platform door, comprising:

[0006] A plurality of platform screen door frame units, comprising a plurality of door panels, two columns symmetrically arranged on both sides of the door panels, and a drive assembly, wherein each of the door panels is slidably connected to the columns on both sides, the door panels slide along the height direction of the columns, and the drive assembly is used to drive each of the door panels to rise or fall.

[0007] The protection detection unit is connected to each of the platform door frame units to detect the lifting status of the door leaf, detect whether there are obstacles in the door leaf movement area, and detect the pressure on the edge of the door leaf.

[0008] The control unit is connected to each of the platform door frame units and the protection detection unit, and includes several control buttons or control switches for controlling the door to move or stop.

[0009] The power supply unit is connected to each of the platform door frame units, the protection detection unit, and the control unit to provide a power source.

[0010] Furthermore, the platform screen door frame unit also includes an upper crossbeam disposed between the two columns;

[0011] The upper beam has two ends fixedly connected to the upper part of a column, and the door panels are parallel to the upper beam.

[0012] Furthermore, the protection detection unit includes:

[0013] An infrared sensor, located on the column, is used to detect whether there are obstacles in the area where the door moves;

[0014] A first position sensor is mounted on the column to detect the lifting height of each door leaf;

[0015] Pressure sensors are installed at the lower edge of each door leaf to detect the pressure between the edge of the door leaf and the obstacle;

[0016] The second position sensor is installed on the column on the side near the car body to detect whether a car body is parked on the track side.

[0017] Furthermore, the control unit includes a local control panel, an emergency control panel, and a central interface panel;

[0018] The local control panel is connected to each of the platform door frame units to control all doors to perform the same rising or falling action.

[0019] The emergency control panel corresponds one-to-one with the platform door frame unit and is installed on the column of the corresponding platform door frame unit to control the corresponding door leaf to perform rising, lowering or stopping actions.

[0020] The central interface panel is connected to each of the platform door frame units and the protection detection unit, respectively, to control any door leaf to perform rising, falling or stopping actions.

[0021] Furthermore, the local control panel includes local operation buttons, local door opening buttons, and local door closing buttons.

[0022] Furthermore, the emergency control panel includes an emergency operation position, an emergency door opening button, an emergency door closing button, and an emergency stop button.

[0023] Furthermore, the central interface panel includes a monitoring computer, an indicator panel, input / output components, and relay components;

[0024] The monitoring computer is used to receive operating data from each of the platform gate structure units and the power supply unit, to receive detection data from the protection detection unit, and to receive control data from the local control panel and the emergency control panel.

[0025] The indicator panel includes several indicator lights to display the operating status of the local control panel, the emergency control panel, and the power supply unit.

[0026] The input / output component is connected to each of the platform door frame units, the local control panel, the emergency control panel, the power supply unit, and the protection detection unit, respectively, to receive input door action control information and output corresponding control commands based on the input control information;

[0027] The relay assembly includes several relays, which are respectively connected to the platform door frame unit, the local control panel, the emergency control panel, and the input / output component, to adjust the switching state of each relay to control the operation of each door leaf.

[0028] Furthermore, the power supply unit includes a drive power supply component, a control power supply component, and an emergency power supply component;

[0029] The drive power supply component is used to provide power to each of the platform door structure units and the protection detection unit;

[0030] The control power supply component is used to provide power to the control unit respectively;

[0031] The emergency power supply component is used to provide power to the platform door structure unit and the control unit respectively when the drive power supply component and the control power supply component fail.

[0032] Furthermore, it also includes:

[0033] The local control box corresponds one-to-one with each of the platform screen door frame units, is installed on the column of the corresponding platform screen door frame unit, and is connected to the drive component of each of the platform screen door frame units.

[0034] The operation positions of the local control box include automatic position, isolation position, manual off position, and manual on position.

[0035] Furthermore, it also includes:

[0036] An image acquisition unit is installed on the upper crossbeam of each of the platform screen door frame units and connected to the power supply unit to acquire image information of the corresponding platform screen door positions.

[0037] Compared with existing technologies, the advantages of this invention are as follows: By using two uprights for support, the overall stability and safety of the platform screen door structure are ensured. The door panels are slidably connected to the uprights on both sides, allowing each panel to slide along the height of the uprights, thus ensuring passenger safety and improving train operation efficiency. Furthermore, by incorporating a protective detection unit, the lifting and lowering status of the door panels, the presence of obstacles within the door panel's movement area, and the pressure on the door panel edges can be monitored in real time, further enabling the assessment of potential emergencies and ensuring passenger safety.

[0038] Furthermore, by setting an upper crossbeam, this utility model can not only ensure the operating quality of the door leaf, but also improve the stability of the column.

[0039] Furthermore, the protective detection unit of this utility model uses infrared sensors to detect whether there are obstacles in the door's moving area and pressure sensors to detect the pressure between the door edge and the obstacle. Together, they can determine whether the door's descent poses a hazard to passengers / goods, ensuring passenger safety. The first position sensor detects the lifting height of each door panel, providing a basis for subsequent control. The second position sensor can promptly detect whether the train is stopped on the track side, ensuring timely opening and closing of the platform doors, guaranteeing passenger safety and improving train operation efficiency.

[0040] Furthermore, the control unit of this utility model achieves three-level control of the platform screen door operation status by setting up a local control panel, an emergency control panel, and a central interface panel to ensure passenger safety.

[0041] Furthermore, by setting up a local control panel, this utility model can control all doors to perform the same rising or falling motion, thereby improving driving efficiency.

[0042] Furthermore, by setting up an emergency control panel that corresponds one-to-one with the platform door frame unit, this utility model can flexibly control each door leaf of the corresponding platform door frame unit by issuing control commands in an emergency, thereby further ensuring passenger safety.

[0043] Furthermore, the central interface panel of this utility model monitors the operation of each module in real time by setting up a monitoring computer, and displays the operating status of each module in real time by setting up an indicator panel. It can detect abnormalities in a timely manner and prevent malfunctions. By setting up the central interface panel to control any door leaf to perform raising, lowering or stopping actions, it can improve the system flexibility and ensure passenger safety.

[0044] Furthermore, the power module of this utility model includes a drive power supply component, a control power supply component, and an emergency power supply component, which can improve system safety and reduce safety risks caused by a single power supply failure.

[0045] Furthermore, by setting up a local control box to switch the drive mode of the drive components, this utility model can improve system safety and further ensure passenger safety.

[0046] Furthermore, by setting up an image acquisition unit to acquire image information of the corresponding platform door positions in real time, this utility model can avoid accidentally injuring passengers when the door is lowered, thus further ensuring passenger safety. Attached Figure Description

[0047] Figure 1 This is a structural block diagram of a semi-enclosed lifting platform door according to an embodiment of the present invention;

[0048] Figure 2 This is a schematic diagram of the platform door frame unit in the blocking state according to an embodiment of the present utility model;

[0049] Figure 3 This is a schematic diagram of the passage state of the platform door frame unit in an embodiment of this utility model;

[0050] In the diagram: 1. Door leaf; 2. Column; 3. Top beam. Detailed Implementation

[0051] To make the objectives and advantages of this utility model clearer, the utility model will be further described below with reference to the embodiments; it should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0052] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0053] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0054] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0055] Please see Figures 1-3 As shown, Figure 1 This is a structural block diagram of a semi-enclosed lifting platform door according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the platform door frame unit in the blocking state according to an embodiment of the present utility model; Figure 3 This is a structural diagram of the platform screen door frame unit in the passage state according to an embodiment of the present invention; in the diagram: door leaf 1, column 2, upper beam 3; this embodiment of the present invention provides a semi-enclosed lifting platform screen door, including:

[0056] A plurality of platform screen door frame units, comprising a plurality of door panels 1, two columns 2 symmetrically arranged on both sides of the door panels, and a drive assembly, wherein each of the door panels 1 is slidably connected to the columns 2 on both sides, the door panels 1 slide along the height direction of the columns 2, and the drive assembly is used to drive each of the door panels 1 to rise or fall.

[0057] Understandably, the drive assembly includes a motor and its drive components, which can raise / lower the door by rotating the motor in both directions.

[0058] It is understood that each door leaf 1 can be slidably connected to the column 2 on both sides by means of sliding rails. The number of sliding rails is the same as the number of door leaves. Each door leaf can slide from the bottom to the top of the sliding rail, and the stopping position of each door leaf can be set by the drive component, thereby improving the protective effect of the platform door structure.

[0059] During implementation, the doors gradually overlap as they rise until they reach the highest position and overlap into one door. At this point, the platform door structure unit is in a passage state, allowing passengers to pass through. As the doors descend, they gradually separate until each door descends to its corresponding preset position. The bottom door is in contact with the ground at the bottom and with the bottom of another door at the top. The doors are arranged in sequence. At this point, the platform door structure unit is in a blocking state, preventing passengers from passing through.

[0060] Understandably, each platform screen door frame unit can be set within the effective platform length of the station, arranged longitudinally symmetrically towards both ends of the platform with the effective platform centerline as the center, and installed 1m to 1.5m back from the platform edge. For curved platforms, the platform screen doors are still installed 1m to 1.5m away from the platform edge, following the curve.

[0061] Specifically, a protective structure is provided at the lower end of each of the door panels to provide protection when it descends to the bottom and to provide a warning during the descent.

[0062] Understandably, black and yellow warning stripes can be placed on the protective structure to serve as a warning.

[0063] In practical applications, one platform screen door frame unit corresponds to one train door on one side of the train. The platform screen door frame units are fixedly connected and connected to form two rows of train doors on the platform corresponding to the two sides of the train, which can further improve the safety protection effect of the platform.

[0064] This utility model, by setting a protective structure at the bottom of any door leaf, can prevent damage caused by bumps when it descends to the bottom, and can also provide warnings during the descent to avoid accidental injury to passengers.

[0065] The protection detection unit is connected to each of the platform door frame units to detect the lifting status of the door leaf 1, detect whether there are obstacles in the door leaf movement area, and detect the pressure on the edge of the door leaf.

[0066] The control unit is connected to each of the platform door frame units and the protection detection unit, and includes several control buttons or control switches for controlling the door to move or stop.

[0067] The power supply unit is connected to each of the platform door frame units, the protection detection unit, and the control unit to provide a power source.

[0068] This utility model utilizes two supporting columns to ensure the overall stability and safety of the platform screen door structure. Each door panel slides along the column height, ensuring passenger safety and improving train operation efficiency. A protective detection unit monitors the door panel's lifting status, the presence of obstacles within the door panel's movement area, and the pressure on the door panel's edges in real time, allowing for further assessment of emergency situations and ensuring passenger safety. The structure employs a rigid, door-shaped isolation design with near-zero ground clearance, preventing accidental falls onto the tracks due to crowding or leaning during peak passenger flow, the ingress of small objects, and intentional climbing onto the tracks. This effectively isolates passengers on the platform from running trains.

[0069] Specifically, the platform screen door frame unit also includes an upper crossbeam 3 disposed between the two columns 2;

[0070] The upper beam 3 is fixedly connected to the upper part of a column 2 at both ends, and the door leaf 1 is parallel to the upper beam 3.

[0071] By setting an upper crossbeam, this utility model can not only ensure the operating quality of the door leaf, but also improve the stability of the column.

[0072] Specifically, the protection detection unit includes:

[0073] An infrared sensor, located on the column, is used to detect whether there are obstacles in the area where the door moves;

[0074] A first position sensor is mounted on the column to detect the lifting height of each door leaf;

[0075] Pressure sensors are installed at the lower edge of each door leaf to detect the pressure between the edge of the door leaf and the obstacle;

[0076] The second position sensor is installed on the column on the side near the car body to detect whether a car body is parked on the track side.

[0077] It is understandable that the application of infrared sensors, pressure sensors, first position sensors, and second position sensors are all existing technologies, and will not be elaborated here.

[0078] This utility model's protective detection unit uses infrared sensors to detect the presence of obstacles in the door's movement area and pressure sensors to detect the pressure between the door edge and the obstacle. Together, they can determine whether the door's descent poses a hazard to passengers or goods, ensuring passenger safety. A first position sensor detects the lifting height of each door panel, providing data for subsequent control. A second position sensor promptly detects whether a train is parked on the track side, ensuring timely opening and closing of the platform doors, guaranteeing passenger safety and improving train operation efficiency.

[0079] Specifically, the control unit includes a local control panel, an emergency control panel, and a central interface panel;

[0080] The local control panel is connected to each of the platform door frame units to control all doors to perform the same rising or falling action.

[0081] The emergency control panel corresponds one-to-one with the platform door frame unit and is installed on the column of the corresponding platform door frame unit to control the corresponding door leaf to perform rising, lowering or stopping actions.

[0082] The central interface panel is connected to each of the platform door frame units and the protection detection unit, respectively, to control any door leaf to perform rising, falling or stopping actions.

[0083] This utility model's control unit achieves three-level control of the platform screen door's operating status by setting up a local control panel, an emergency control panel, and a central interface panel to ensure passenger safety.

[0084] Specifically, the local control panel includes local operation buttons, local door opening buttons, and local door closing buttons.

[0085] If the local operation button is pressed and effective, pressing the local open button controls all door panels to perform an upward movement, and pressing the local close button controls all door panels to perform a downward movement.

[0086] If the local operation button is pressed and has no effect, or if the local operation button is not pressed, pressing the local open button or the local close button will not control all doors to perform the corresponding actions.

[0087] Understandably, under certain circumstances (maintenance, repair, etc.), staff can choose to control the local control panel to enter manual control mode in order to control the operating status of the platform screen door unit.

[0088] In implementation, the local control panel also includes a light status test button and a gap detection system switch. Pressing the light status test button will illuminate all indicator lights on the local control panel for troubleshooting. The working mode of the gap detection system can be selected via the key switch. When the key switch is turned to the normal working position of the gap detection mode, the gap detection system works normally. When the key switch is turned to the bypass position of the gap detection mode switch, the gap detection system exits operation, and the gap detection bypass indicator light on the platform control panel illuminates. When the entire gap detection system fails, turning the key switch to the isolation position will illuminate the gap detection isolation indicator light on the platform control panel.

[0089] This invention, by setting up a local control panel, can control all doors to perform the same rising or falling motion, thereby improving driving efficiency.

[0090] Specifically, the emergency control panel includes an emergency operation position, an emergency door opening button, an emergency door closing button, and an emergency stop button;

[0091] The emergency operation bit includes an enable bit and an disable bit;

[0092] In an emergency, if the emergency operation position is set to the enable position, each of the platform door frame units will not respond to the control commands of the local control panel. Pressing the emergency open button will control each door leaf of the corresponding platform door frame unit to perform an upward action. Pressing the emergency close button will control each door leaf of the corresponding platform door frame unit to perform a downward action. Pressing the emergency stop button will control each door leaf of the corresponding platform door frame unit to perform a stop action.

[0093] If the emergency operation position is set to the prohibited position under normal circumstances, the platform door frame units will not respond to the control commands of the emergency control panel. Therefore, pressing the emergency open button, emergency close button, or emergency stop button will not control the door panels of the corresponding platform door frame units to perform the corresponding actions.

[0094] In practice, if the infrared sensor of the protection detection unit detects an obstacle in the door's moving area, or if the pressure sensor detects that the pressure between the door edge and the obstacle is not zero, it is determined to be an emergency; otherwise, it is determined to be a normal situation.

[0095] In practice, the emergency operation position can be operated via a key switch. The emergency control panel also includes an emergency control panel operation permission indicator. In an emergency, turning the key switch to the permission position will illuminate the emergency control panel operation permission indicator, indicating that the platform-level control mode has been entered. After the platform-level control mode ends (under normal circumstances), turning the key switch to the prohibition position will extinguish the emergency control panel operation permission indicator.

[0096] This utility model sets up an emergency control panel that corresponds one-to-one with the platform door frame unit. By issuing control commands in an emergency, it can flexibly control each door leaf of the corresponding platform door frame unit, further ensuring passenger safety.

[0097] Specifically, the central interface panel includes a monitoring computer, an indicator panel, input / output components, and relay components;

[0098] The monitoring computer is used to receive operating data from each of the platform gate structure units and the power supply unit, to receive detection data from the protection detection unit, and to receive control data from the local control panel and the emergency control panel.

[0099] The indicator panel includes several indicator lights to display the operating status of the local control panel, the emergency control panel, and the power supply unit.

[0100] The input / output component is connected to each of the platform door frame units, the local control panel, the emergency control panel, the power supply unit, and the protection detection unit, respectively, to receive input door action control information and output corresponding control commands based on the input control information;

[0101] The relay assembly includes several relays, which are respectively connected to the platform door frame unit, the local control panel, the emergency control panel, and the input / output component, to adjust the switching state of each relay to control the operation of each door leaf.

[0102] It is understandable that each relay is independent and does not affect the others. Therefore, by controlling the operation of the platform screen door structure unit through independent relays and independent power supplies, it can be ensured that when a low-priority link fails, the operation of the platform screen door structure unit can be controlled through a high-priority link.

[0103] In practice, the central interface panel can be installed in the equipment room for centralized management and unified monitoring, enabling timely detection and handling of potential safety issues and improving the safety of passengers and equipment.

[0104] This utility model's central interface panel monitors the operation of each module in real time using a monitoring computer and displays the operating status of each module in real time using an indicator panel. This allows for timely detection of abnormalities and prevention of malfunctions. By setting the central interface panel to control any door leaf to perform raising, lowering, or stopping actions, the system's flexibility can be improved and passenger safety can be ensured.

[0105] Specifically, the power supply unit includes a drive power supply component, a control power supply component, and an emergency power supply component;

[0106] The drive power supply component is used to provide power to each of the platform door structure units and the protection detection unit;

[0107] The control power supply component is used to provide power to the control unit respectively;

[0108] The emergency power supply component is used to provide power to the platform door structure unit and the control unit respectively when the drive power supply component and the control power supply component fail.

[0109] Understandably, the drive power supply assembly includes a drive rectifier module charging unit, a drive monitoring unit, a drive battery, and a drive power supply circuit to complete the functions of charging, power supply, and power supply after the failure of both power sources. The drive power supply must meet relevant electromagnetic compatibility requirements, will not cause electromagnetic interference to the system, and has voltage stabilization and current limiting functions. It also has intelligent battery management functions, implementing battery management and output control according to different situations to achieve uninterrupted automatic equalization and float charging of the drive battery. The overall efficiency meets the relevant requirements of the platform screen door, the output current and voltage are stable, and it must have functions such as automatic battery detection and alarm. The power input of the drive power supply assembly should adopt the isolation transformer input method and be equipped with overvoltage and overcurrent protection devices. The positive terminal of each bus must be protected by a circuit breaker. The alarm status of the circuit breaker can be provided by the auxiliary no-voltage contact. The low output voltage of the drive power supply assembly refers to the low output voltage of the control power supply assembly. In addition, the drive power supply should preferably adopt a DC centralized power supply, and the output voltage should not exceed DC 110V.

[0110] It is understood that the control power supply components include a control rectifier unit, a control charging unit, a control single-phase isolation transformer, a control monitoring unit, a control insulation monitoring unit, a control battery, and a control feeder unit. These components should have online hot-swappable and online maintenance capabilities, N+1 redundancy backup, and static bypass and maintenance bypass functions. The feeder circuits should be able to meet the needs of the system control equipment, ensuring the safe and reliable operation of the system. The load design of the feeder circuits should be based on the configuration of each system at each station. The positive pole of each busbar is protected by a circuit breaker, and the alarm status of the circuit breaker is provided by an auxiliary no-voltage contact. The low output voltage of the control power supply components should refer to the low output voltage of the drive power supply components.

[0111] The power module of this utility model includes a drive power supply component, a control power supply component, and an emergency power supply component, which can improve system safety and reduce safety risks caused by a single power supply failure.

[0112] Specifically, it also includes:

[0113] The local control box corresponds one-to-one with each of the platform screen door frame units, is installed on the column of the corresponding platform screen door frame unit, and is connected to the drive component of each of the platform screen door frame units.

[0114] The operation positions of the local control box include automatic position, isolation position, manual off position, and manual on position;

[0115] If the operation position of the local control box is in the automatic position, the platform door frame unit responds to the control commands of the local control panel and the emergency control panel.

[0116] If the operating position of the local control box is the isolation position, the platform door frame unit will not respond to the control commands of the local control panel and the emergency control panel;

[0117] If the operation position of the local control box is the manual close position, the door leaf of the corresponding platform door frame unit will start to descend, and the door leaf that has descended to the corresponding position will not move.

[0118] If the operation position of the local control box is set to manual open, the door leaf of the corresponding platform door frame unit will start to rise, and the door leaf that has already risen to the corresponding position will not move.

[0119] It is understood that the local control box can be controlled via the local control box key. The local control box key is only inserted and removed in the automatic and isolated positions. The operation sequence of the local control box key is as shown in the local control box markings. If the operation position of the local control box is the manual closed position, the platform screen door structure unit is in a maintenance and debugging operation state, with the highest operation level (except for manual release), and it blocks control commands from the local control panel and the central interface panel. If the operation position of the local control box is the manual open position, the platform screen door structure unit is in a maintenance and debugging operation state, with the highest operation level (except for manual release), and it does not respond to control commands from the local control panel and the central interface panel.

[0120] This invention improves system safety and further protects passenger safety by setting up a local control box to switch the drive mode of the drive components.

[0121] Specifically, it also includes:

[0122] An image acquisition unit is installed on the upper crossbeam of each of the platform screen door frame units and connected to the power supply unit to acquire image information of the corresponding platform screen door positions.

[0123] It is understood that any existing device and method capable of acquiring image information of the location of the corresponding platform screen door falls within the protection scope of this utility model, and will not be elaborated here.

[0124] During implementation, the personnel can use the image information obtained by the image acquisition unit to help analyze the passenger flow on the platform and the operation of the platform door structure unit, and assist the central interface panel in controlling each door.

[0125] This invention uses an image acquisition unit to acquire real-time image information of the location of the corresponding platform door, which can prevent passengers from being accidentally injured when the door is lowered, and further ensure passenger safety.

[0126] The technical solution of this utility model has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A semi-enclosed ascending and descending platform door, characterized in that, The platform door architecture unit comprises a plurality of door leaves, two columns symmetrically arranged on both sides of the door leaves, and a driving assembly, wherein each of the door leaves is slidably connected with the columns on both sides, the door leaves slide along the height direction of the columns, and the driving assembly is used to drive the door leaves to rise or fall. The protection detection unit is connected with each of the platform door architecture units, and is used to detect the lifting state of the door leaves, detect whether there is an obstacle in the moving area of the door leaves, and detect the edge pressure of the door leaves. The control unit is connected with each of the platform door architecture units and the protection detection unit, and comprises a plurality of control buttons or control switches, which are used to control the movement or stop of the door leaves. The power supply unit is connected with each of the platform door architecture units, the protection detection unit, and the control unit, and is used to provide a power source. The platform door architecture unit further comprises an upper cross beam arranged between the two columns.

2. The semi-enclosed platform door according to claim 1, wherein, The two ends of the upper cross beam are fixedly connected with the upper parts of the columns, and the door leaves are parallel to the upper cross beam. The protection detection unit comprises:

3. The semi-enclosed platform door according to claim 2, wherein, An infrared sensor arranged on the column, which is used to detect whether there is an obstacle in the moving area of the door leaves; A first position sensor arranged on the column, which is used to detect the lifting height of each door leaf; A pressure sensor arranged at the lower edge of each door leaf, which is used to detect the pressure between the door leaf edge and the obstacle; A second position sensor arranged on the column close to the vehicle body, which is used to detect whether the rail side is parked with a vehicle body. The control unit comprises an on-site control panel, an emergency control panel, and a central interface panel.

4. The semi-enclosed platform door according to claim 3, wherein, The on-site control panel is connected with each of the platform door architecture units, and is used to control all door leaves to perform the same rising or falling action. The emergency control panel corresponds to each of the platform door architecture units, and is arranged on the column of the corresponding platform door architecture unit to control the corresponding door leaf to perform the rising, falling or stopping action. The central interface panel is connected with each of the platform door architecture units and the protection detection unit, and is used to control any door leaf to perform the rising, falling or stopping action. The on-site control panel comprises an on-site operation button, an on-site door opening button, and an on-site door closing button.

5. A semi-enclosed platform door according to claim 4, wherein, The emergency control panel comprises an emergency operation position, an emergency door opening button, an emergency door closing button, and an emergency stop button.

6. A semi-enclosed platform door according to claim 5, wherein, The emergency operation position comprises an allowed position and a prohibited position. The central interface panel comprises a monitoring computer, an indication panel, an input / output assembly, and a relay assembly.

7. A semi-enclosed platform door according to claim 6, wherein, The monitoring computer is used to receive the operation data of each of the platform door architecture units and the power supply unit, receive the detection data of the protection detection unit, and receive the control data of the on-site control panel and the emergency control panel. The indication panel comprises a plurality of indicator lights, which are used to display the operation states of the on-site control panel, the emergency control panel, and the power supply unit. ​ The input-output component is connected with the platform door frame structure unit, the local control box, the emergency control box, the power supply unit and the protection detection unit respectively, to receive the input door leaf action control information and output corresponding control commands based on the input control information; The relay component includes several relays, which are connected with the platform door frame structure unit, the local control box, the emergency control box and the input-output component, to adjust the switch state of each relay to control the door leaf action.

8. A semi-enclosed platform door according to claim 7, wherein, The power supply unit includes a driving power supply component, a control power supply component and an emergency power supply component; The driving power supply component provides power source for the platform door frame structure unit and the protection detection unit; The control power supply component provides power source for the control unit; The emergency power supply component provides power source for the platform door frame structure unit and the control unit when the driving power supply component and the control power supply component fail.

9. A semi-enclosed platform door according to claim 8, wherein, Further comprising: The local control box is set on the column of the corresponding platform door frame structure unit and connected with the driving component of the platform door frame structure unit. The operation position of the local control box includes automatic position, isolation position, manual closing position and manual opening position.

10. A semi-enclosed platform door according to claim 9, wherein, Further comprising: The image acquisition unit is set on the upper cross beam of the platform door frame structure unit and connected with the power supply unit, to acquire the image information of the corresponding platform door position.

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