Platform door device and platform door system

Abstract

The invention provides a platform door device and a platform door system. The platform door device comprises a top box; the driving unit comprises a first driving module and a second driving module, the first driving module comprises first driving pieces with the number not larger than that of door bodies in the first sliding door module, and the second driving module comprises second driving pieces with the number not larger than that of door bodies in the second sliding door module. The first driving piece and the second driving piece are in transmission connection with the corresponding door bodies respectively; wherein in the in-out direction of the door body, the projections of the multiple first driving pieces do not have an overlapped area or at most part of areas are overlapped, the projections of the multiple second driving pieces do not have an overlapped area or at most part of areas are overlapped, and the projections of the first driving pieces and the second driving pieces do not have an overlapped area or at most part of areas are overlapped; the invention has the advantages that when the top box is opened for maintenance, all driving parts and a portal crane system can be completely exposed in the visual field of maintenance personnel, so that the visibility and accessibility of maintenance and repair are greatly improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of platform door, and particularly relates to a platform door device and a platform door system. BACKGROUND

[0002] With the rapid development of urban rail transit, the public transportation system such as light rail and high-speed rail increasingly improves the requirements for platform safety and traffic efficiency. The platform door system, as an important facility for ensuring passenger safety and improving the comfort of waiting environment, has been widely applied to various rail transit stations. Among them, the sliding door device is the core component of the platform door system, and its operation reliability, opening efficiency, space layout and maintenance convenience directly affect the overall operation quality.

[0003] The platform sliding door in the prior art usually adopts a single-sided or multi-door linkage structure, and the driving device (such as a motor, a belt, a gear box, etc.) is usually arranged in the top box at the top of the door body. However, the traditional driving layout method often linearly arranges multiple driving components along the moving direction of the door body, which results in that the driving system occupies a large space in the length direction, and it is difficult to meet the needs of compact and small design of modern platforms. Especially in the application scene of multiple door bodies and large opening, the longitudinal extension of the driving unit not only increases the size of the top box, but also limits the installation space of the edge of the door body, affecting the overall layout flexibility.

[0004] More prominently, in order to accommodate multiple driving components or transmission mechanisms, part of the existing structure has to extend part of the mechanical components to the space close to the rail side, resulting in that the maintenance personnel need to enter the rail area or the high-risk area at the edge of the platform for operation during daily maintenance or fault diagnosis, which has safety hazards and is inconvenient to operate, and seriously affects the operation and maintenance efficiency and system availability. In addition, the driving components are blocked or deeply buried in the structure, which has poor visibility, and it is difficult to realize quick positioning and replacement, thereby increasing the maintenance cost and downtime. SUMMARY

[0005] The application aims to solve the above problems of the prior art, and provides a platform door device in which maintenance personnel do not need to enter the rail side or the edge of the platform for operation.

[0006] The purpose of the application can be achieved by the following technical scheme: a platform door device, comprising:

[0007] a top box, an installation cavity is arranged in the top box;

[0008] a sliding door unit, comprising a first sliding door module and a second sliding door module, the first sliding door module and the second sliding door module each comprise at least three door bodies;

[0009] A driving unit is fixedly arranged in the mounting cavity, and the driving unit comprises a first driving module and a second driving module. The first driving module comprises a first driving member which is not more than the number of door bodies in the first sliding door module. The second driving module comprises a second driving member which is not more than the number of door bodies in the second sliding door module. The first driving member and the second driving member are respectively in transmission connection with the corresponding door body.

[0010] In the direction of the door body, the projections of the first driving members do not overlap or at most partially overlap, the projections of the second driving members do not overlap or at most partially overlap, and the projections of the first driving members and the second driving members do not overlap or at most partially overlap.

[0011] Preferably, the number of first driving members is less than the number of door bodies in the first sliding door module, the number of second driving members is less than the number of door bodies in the second sliding door module, at least one of the door bodies in the first sliding door module is provided with a first transmission assembly, and the first transmission assembly is in transmission connection with the remaining door bodies. At least one of the door bodies in the second sliding door module is provided with a second transmission assembly, and the second transmission assembly is in transmission connection with the remaining door bodies.

[0012] Preferably, the number of door bodies in the first sliding door module and the second sliding door module is three, and the three door bodies are respectively configured as a first sliding door, a second sliding door, and a third sliding door. The first transmission assembly comprises two transmission guide wheels fixedly arranged on the second sliding door, and a transmission belt is arranged between the two transmission guide wheels. The first sliding door and the third sliding door are respectively provided with a transmission part fixedly connected with the transmission belt, and the first sliding door and the third sliding door are respectively in transmission connection with the corresponding first driving member.

[0013] Preferably, the straight-line distance between the two transmission guide wheels is not shorter than the unit length of one door body, and in the direction of the door body, the transmission part on the first sliding door and the transmission part on the third sliding door are respectively arranged on the two sides of the second sliding door.

[0014] Preferably, in the horizontal direction, two first driving members in the first driving module are located on the same plane and are arranged in a staggered manner in the moving direction of the door body, and two second driving members in the second driving module are arranged in a staggered manner in the vertical direction, wherein one of the second driving members is located on the same plane as the first driving member.

[0015] Preferably, when the door bodies in the first sliding door module and the second sliding door module are overlapped and stored, the moving speed of the second sliding door is 1 / 2 of the corresponding first sliding door or the third sliding door.

[0016] As preferred, the first driving member comprises a first driving motor and a first guide wheel, the first driving motor and the first guide wheel are connected through a first driving belt, and the first driving belt is connected with the door body in the first sliding door module; the second driving member comprises a second driving motor and a second guide wheel, the second driving motor and the second guide wheel are connected through a second driving belt, and the second driving belt is connected with the door body in the second sliding door module.

[0017] As preferred, a plurality of slide rails are fixedly arranged in the top box, a sliding block is fixedly arranged on the door body, the number of the slide rails is equal to the number of the door bodies, and the slide rails are respectively arranged above the door bodies.

[0018] A platform door system comprises the above platform door device, the number of the platform door device is multiple groups, and the multiple groups of platform door devices are linearly distributed.

[0019] In the above platform door system, an identification system is further included, the identification system is in communication connection with the platform door device, the identification system is used for collecting the train type information and the actual parking position of the incoming train in real time, and the opening area of the sliding door unit in the platform door device is adjusted according to the train type information and the actual parking position of the incoming train collected by the identification system.

[0020] Compared with the prior art, the beneficial effects of the present application are:

[0021] (1) By reasonably arranging the first driving module and the second driving module in the driving unit, the projections of the plurality of first driving members in the door body entering and exiting direction do not overlap or only partially overlap, the same is true between the plurality of second driving members, and the projections between the first driving member and the second driving member also do not overlap or only partially overlap. This arrangement mode significantly optimizes the spatial arrangement of the driving components in the installation cavity, and realizes the high integration and planar distribution of the driving device.

[0022] (2) The driving mechanism and the transmission device of the entire sliding door unit can be compactly arranged on the platform side (i.e. the passenger side), without extending to the space close to the track side. When the top box is opened for maintenance, all driving components and door machine systems can be completely exposed to the field of view of the maintenance personnel, greatly improving the visibility and accessibility of maintenance and maintenance. The maintenance personnel do not need to enter the track side or perform high-risk operations at the edge of the platform, and can complete the installation, debugging and troubleshooting of the driving system and the transmission mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a structural schematic view of the first sliding door module;

[0024] Figure 2 is Figure 1 a partial enlarged structural schematic view of A in the figure;

[0025] Figure 3 is Figure 1 one of the plan structural schematic views of the figure;

[0026] Figure 4 is Figure 1 the second of the plan structural schematic views of the figure;

[0027] Figure 5 is a structural schematic view of the second sliding door module;

[0028] Figure 6 is Figure 4 one of the plan structural schematic views of the figure;

[0029] Figure 7 is Figure 4 the second of the plan structural schematic views of the figure;

[0030] Figure 8 is a three-dimensional structural schematic view of the platform sliding door device;

[0031] Figure 9 is Figure 7 a plan structural schematic view of the figure;

[0032] Figure 10 is a schematic view of the state of the platform sliding door device after opening two door bodies;

[0033] Figure 11 is a schematic view of the state of the platform sliding door device after opening three door bodies;

[0034] Figure 12 is a schematic view of the state of the platform sliding door device after opening six door bodies.

[0035] In the figure, 100, top box; 101, top plate; 102, sliding rail; 200, first sliding door module; 201, second sliding door module; 203, first sliding door; 204, second sliding door; 205, third sliding door; 206, sliding block; 300, first driving member; 301, second driving member; 304, first driving motor; 305, first guide wheel; 306, first driving belt; 307, second driving motor; 308, second guide wheel; 309, second driving belt; 400, transmission guide wheel; 401, transmission belt; 402, transmission part. DETAILED DESCRIPTION

[0036] The following are specific embodiments of the present application and further describe the technical solutions of the present application in conjunction with the drawings, but the present application is not limited to these embodiments.

[0037] It should be noted that all direction indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the direction indications will also change accordingly.

[0038] As shown in the drawings, a platform door device comprises: Figures 1-9

[0039] a top box 100, which is internally provided with a mounting cavity;

[0040] a sliding door unit, which comprises a first sliding door module 200 and a second sliding door module 201, and the first sliding door module 200 and the second sliding door module 201 each comprise at least three door bodies;

[0041] a driving unit, which is fixedly arranged in the mounting cavity, and the driving unit comprises a first driving module and a second driving module, the first driving module comprises a first driving piece 300 which is not more than the number of door bodies in the first sliding door module 200, the second driving module comprises a second driving piece 301 which is not more than the number of door bodies in the second sliding door module 201, and the first driving piece 300 and the second driving piece 301 are respectively in transmission connection with the corresponding door bodies;

[0042] wherein, along the direction of entry and exit of the door bodies, the projections of the plurality of first driving pieces 300 have no overlapping area or at most partial overlapping area, the projections of the plurality of second driving pieces 301 have no overlapping area or at most partial overlapping area, and the projections of the first driving piece 300 and the second driving piece 301 have no overlapping area or at most partial overlapping area.

[0043] The present application reasonably arranges the first driving module and the second driving module in the driving unit, so that the projections of the plurality of first driving pieces 300 in the direction of entry and exit of the door bodies do not overlap or only partially overlap, the same is true between the plurality of second driving pieces 301, and the projections between the first driving piece 300 and the second driving piece 301 also have no overlapping or only partial overlapping. This arrangement significantly optimizes the spatial arrangement of the driving components in the mounting cavity, and realizes the high integration and planar distribution of the driving device.

[0044] Therefore, the driving mechanism and the transmission device of the entire sliding door unit can be compactly arranged on the platform side (i.e. the passenger side), without the need to extend to the space close to the track side. When the top box 100 is opened for maintenance, all driving components and door machine systems can be completely exposed to the field of view of the maintenance personnel, greatly improving the visibility and accessibility of maintenance and repair. The maintenance personnel can complete the installation, debugging and troubleshooting of the driving system and the transmission mechanism without the need to enter the track side or perform high-risk operations at the edge of the platform.

[0045] ​In addition, the non-overlapping or low-overlapping drive arrangement enables the entire door machine system to be installed close to the platform door, effectively saving longitudinal space and facilitating compact design of the platform door system and efficient use of platform space.

[0046] It should be noted that the top box 100 is an upper integrated structure unit of the platform door system, which is arranged above the door body and constitutes a top bearing and function integrated platform of the door device. An installation cavity is formed in the top box 100, which is used to integrally arrange the drive unit, control module, slide rail 102 system and electrical cable and other key components of the door body. The top box 100 is connected with the platform civil engineering or the door body bearing beam through a top fixing structure, and bears the main load in the door body running process, thereby ensuring the stability of the system structure and the safety of the running.

[0047] Meanwhile, as an important part of the integrated design of function and aesthetics, the top box 100 is provided with a decorative panel on the outer side to realize the closure and concealment of the internal mechanical structure, and effectively improve the neatness and aesthetics of the overall appearance of the platform door. An openable cover plate or a modular dismounting structure can be configured to facilitate maintenance personnel to visually inspect and maintain the drive device and control system from the platform side.

[0048] Specifically, the number of the first drive 300 is less than the number of the door bodies in the first sliding door module 200, the number of the second drive 301 is less than the number of the door bodies in the second sliding door module 201, at least one door body in the first sliding door module 200 is provided with a first transmission assembly, and the first transmission assembly is in transmission connection with the remaining door bodies; at least one door body in the second sliding door module 201 is provided with a second transmission assembly, and the second transmission assembly is in transmission connection with the remaining door bodies. The plurality of door bodies realize synchronous movement through the first transmission assembly or the second transmission assembly, thereby realizing the "one drive multiple door" transmission mechanism. The use number of the drive is effectively reduced, the overall structure of the door machine system is greatly simplified while ensuring the cooperative running of the multiple doors. Meanwhile, since the drive unit has high integration degree and small required space, the planarization and compact arrangement of the drive in the installation cavity are further supported.

[0049] In one specific embodiment of the present application, the first sliding door module 200 includes three door bodies, which are a first sliding door 203, a second sliding door 204 and a third sliding door 205. Among them, only the first sliding door 203 and the third sliding door 205 are configured with the first drive 300, and the middle second sliding door 204 is not provided with an independent drive, but is linked through the first transmission assembly arranged thereon. The first transmission assembly includes two transmission guide wheels 400 fixed on the second sliding door 204, and a transmission belt 401 sleeved between the two transmission guide wheels 400; the first sliding door 203 and the third sliding door 205 are respectively provided with transmission parts 402 and are fixedly connected with the transmission belt 401, thereby forming a cooperative movement structure of "two-end driving and middle linkage".

[0050] The design realizes the precise control of the opening and closing actions of the three door bodies by two driving members: when the first driving member 300 drives the first sliding door 203 and the third sliding door 205 to move, the movement is transmitted to the second sliding door 204 through the transmission belt 401, so that the second sliding door 204 follows and runs, ensuring the overall coordination and smooth opening and closing of the three doors. Since the independent driving device of the middle door body is omitted, the number of driving motors is significantly reduced (from the traditional "three driving" to "double driving"), which not only reduces the material cost and the complexity of the electric control system, but also reduces the motor installation space, the number of wiring, and the energy consumption.

[0051] Moreover, the transmission structure concentrates the driving on the two side door bodies, and the middle door body follows synchronously through flexible belt transmission, avoiding the stress concentration and assembly error problems caused by rigid connection, and improving the fault tolerance and running stability of the system. At the same time, the transmission assembly structure is simple and easy to integrate into the upper rail 102 system of the door body, without affecting the overall appearance and maintenance accessibility.

[0052] Further limited, the straight-line distance between the two transmission guide wheels 400 is not less than the unit length of one door body, ensuring that all door bodies can be completely overlapped in the completely closed state. If the distance between the transmission guide wheels 400 is too short, the effective stroke of the belt is limited, which may cause the middle door body to fail to completely enter the overlapping area, hinder the complete opening of the door body, or cause mechanical interference. By setting the distance between the guide wheels to be not less than the width of one door body, sufficient arrangement space and movement stroke can be provided for the transmission belt 401, ensuring that the middle door body can smoothly slide to the completely overlapped position during linkage, thereby realizing the maximum passage clearance and meeting the large passenger flow evacuation demand.

[0053] At the same time, the transmission parts 402 on the first sliding door 203 and the third sliding door 205 are arranged on the two sides of the second sliding door 204, i.e. the transmission connection points are located on the front and rear of the movement path of the middle door body, in order to avoid structural interference during the opening and closing of the door body. Specifically, during the opening or closing of the door body, there is a relative sliding relationship between the door bodies. If the transmission parts 402 are concentratedly arranged on the same side, the transmission parts 402 (such as connecting blocks, belt clamps, etc.) may collide or scratch the frame or structural members of the adjacent door body during the door body overlapping stage, affecting the smoothness of operation and even causing damage. By symmetrically arranging the transmission parts 402 on the two sides of the middle door body, the force distribution of the transmission belt 401 is reasonable when pulling or pushing the middle door, and the transmission connection structure naturally deviates from the door body movement trajectory, effectively avoiding the space conflict of the door body during the overlapping process, realizing the interference-free and smooth sliding operation effect.

[0054] It should be noted that the second transmission assembly has the same structure as the first transmission assembly, the first sliding door module 200 and the second sliding door module 201 are mirror image arranged, and the three door bodies are stacked along the door body entry and exit direction.

[0055] In a preferred embodiment of the present invention, when the first sliding door 203, the second sliding door 204, and the third sliding door 205 are fully closed, the transmission portion 402 on the first sliding door 203 and the transmission portion 402 on the second sliding door 204 (or their connection points on the belt) are respectively positioned at opposite ends of the effective transmission path of the transmission belt 401, i.e., their relative positions on the belt are at their maximum separation. "Transmission portion 402" herein should be understood as the connection point or point of action for power transmission, ensuring sufficient transmission distance to meet the full travel requirements required for the door body to fully open from closed to fully open.

[0056] In traditional platform door systems, multiple drive components are typically arranged in parallel, occupying a significant amount of horizontal or vertical space. This results in a bulky internal structure within the top box 100 and hinders a compact design. The present invention eliminates overlap in forward projections by arranging the two drive components of the first drive module in a coplanar manner (e.g., staggered forward and backward along the door's direction of motion) and fully utilizes the depth of the mounting cavity.

[0057] At the same time, in the horizontal direction, the two first driving members 300 in the first driving module are arranged in the same horizontal plane, and are staggered front to back in the length direction of the door body (that is, staggered front to back in the longitudinal direction of the track), which effectively avoids the overlap of the two driving members in projection and makes full use of the longitudinal depth of the top box 100; and the two second driving members 301 of the second driving module are staggered up and down in the vertical direction, utilizing the spatial redundancy in the height direction to avoid space waste caused by vertical stacking; and one of the second driving members 301 is located in the same horizontal plane as the first driving member 300, realizing "plane sharing" between different driving modules and forming a nested structure.

[0058] It should be noted that the two second drive members 301 are staggered along the moving direction of the door body. Since the drive members are staggered with each other in three-dimensional space and partially arranged in the same plane, after opening the top box 100 from the platform side, all key drive components are not blocked from each other, and maintenance personnel can directly observe each motor, belt, terminal and transmission interface.

[0059] like Figure 10 As shown, by setting the moving speed of the second sliding door 204 to half of the first sliding door 203 or the third sliding door 205, it just matches the actual required displacement. When the first sliding door 203 moves a full door width, the second sliding door 204 only moves half the door width. Figure 11As shown, when the first sliding door 203 moves two complete door widths, the second sliding door 204 moves one door width, achieving three-door overlap. During the sliding door overlap operation, the first sliding door 203 is opened, and the third sliding door 205 remains stationary; the third sliding door 205 is opened, and the first sliding door 203 remains stationary, i.e., using time-sharing, spatially staggered driving mode; as shown Figure 12 When the three doors have completed overlap, if the entire door group needs to be adjusted as a whole (e.g., aligning the platform edge, avoiding equipment, or performing a reset operation), the system can drive the entire overlapping door group to the target position along the sliding rail 102 by running the two first driving members 300 at the same speed and in the same direction.

[0060] In the present application, the first driving member 300 includes a first driving motor 304 and a first guide wheel 305, which are connected by a first driving belt 306. The driving belt is in transmission connection with the corresponding door body in the first sliding door module 200. This arrangement allows the torque generated by the motor to be smoothly transmitted to the guide wheel, which in turn drives the door body to move. Since a belt drive is used, vibration and noise can be effectively reduced, ensuring smoothness and quietness during the opening and closing of the door body. The second driving member 301 has the same structure as the first driving member 300, including a second driving motor 307 and a second guide wheel 308, which are connected by a second driving belt 309.

[0061] The driving motor and the tensioning / guiding element (guide wheel) are arranged separately, allowing the relative position of the motor and the guide wheel to be adjusted flexibly according to the internal space of the top box 100, avoiding installation interference caused by compact structure, and improving the layout freedom of the driving system in limited space. At the same time, the guide wheel plays an effective guiding and tensioning auxiliary role for the driving belt, preventing the belt from deviating, skipping or relaxing during high-speed operation or long-term use, significantly improving the stability and durability of the transmission.

[0062] The driving motor and the guide wheel are distributed along the moving direction of the door body, making the entire driving member have a linear extension structure in the horizontal direction, which is easy to align with the movement direction of the door body, reduces the lateral tension during transmission, reduces the additional wear of the sliding block 206 and the sliding rail 102, and improves the stability and quietness of the door body operation.

[0063] Notably, multiple driving motors and guide wheels can be arranged at different heights or lateral positions, forming a staggered arrangement, thereby avoiding the overlap of multiple driving members in the projection plane, further optimizing the space utilization in the top box 100. For example, the guide wheel in one of the driving members can be embedded in the staggered cavity area of the adjacent driving member, achieving space sharing and three-dimensional integration.

[0064] Specifically, the top box 100 includes a top plate 101, and the first driving motor 304 and the second driving motor 307 are fixedly arranged on the top plate 101.

[0065] A plurality of slide rails 102 are fixedly arranged in the top box 100, and a sliding block 206 is fixedly arranged on the door body. The number of the slide rails 102 corresponds to the number of the door bodies, and the slide rails 102 are arranged above the door bodies respectively. Each door body has an independent guide rail, forming a precise guide mechanism of one rail and one door. In the opening and closing process, each door body slides along the exclusive slide rail 102 independently, avoiding the interference problem of the sliding block 206 when multiple door bodies share the same guide rail, and significantly improving the running stability and reliability of the multi-door linkage system.

[0066] At the same time, the slide rail 102 is located above the door body, so that the door body is in a hanging running state, the center of gravity is moved upward, the stability is high, and the swinging or sagging phenomenon is not easy to occur, thereby improving the safety and quiet performance in the running process. The structure also supports the design of no sill or small sill at the bottom of the door body, which is beneficial to realize barrier-free access and improve the efficiency of passenger access and riding experience.

[0067] In addition, the independent arrangement mode of the slide rail 102 is highly coordinated with the space staggered layout of the driving system: each slide rail 102 can be reasonably arranged along the moving direction of the door body, avoiding the installation area of the key components such as the first driving member 300, the second driving member 301, the driving belt and the staggered cavity, realizing the spatial decoupling and efficient coexistence of the motion system and the driving system, and avoiding mechanical interference in the running process.

[0068] A platform door system includes the above-mentioned platform sliding door device, and the number of the platform sliding door device is multiple groups. The multiple groups of platform sliding door devices are linearly distributed along the edge direction of the platform, and are arranged in sequence and cover the entire platform door area. The advantages of each unit in opening width, running stability and maintenance convenience are retained, and the linear splicing mode is used to realize complete coverage of the long platform opening.

[0069] The multiple groups of units work cooperatively, and can realize segmented independent control according to passenger flow distribution or train marshalling, for example, only the sliding door units of the high-density boarding and alighting area are opened, and the remaining units are kept closed, thereby significantly improving the operation flexibility and energy utilization efficiency.

[0070] At the same time, the structural boundaries between the sliding door units are clear, and the movements do not interfere with each other. Even if a unit fails, it will not affect the normal operation of adjacent units, thereby improving the reliability and fault tolerance of the entire system.

[0071] The identification system can identify the vehicle type information and the actual parking position of the incoming train in real time, compare and analyze the detection results with the preset original parking position, and dynamically adjust the opening area and opening time sequence of the sliding door units.

[0072] Due to the differences in the number, spacing and stopping position of the doors of different vehicle types (such as A-type vehicles, B-type vehicles, long and short formations, etc.), the traditional fixed platform door system often cannot completely match the door layout of all vehicle types, and the platform door and the train door are prone to misalignment. The present application can automatically identify the vehicle type category of the current incoming train by introducing an identification system, and obtain the actual deviation of the stopping position by combining positioning technology (such as visual recognition, laser ranging, radar or trackside beacon, etc.).

[0073] Based on the above information, the control system can intelligently calculate the accurate positions of the doors of each vehicle compartment, dynamically match the corresponding door moving units, and only open the door body area aligned with the train doors, thereby avoiding the invalid opening of non-aligned areas and improving the safety and efficiency of passenger boarding and alighting.

[0074] It should be noted that in the present application, descriptions such as "first", "second", "one", etc. are only for descriptive purposes and cannot be understood as indicating or implying the relative importance of the indicated technical features or implying the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited. The terms "connection", "fixing", etc. should be broadly understood, for example, "fixing" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium; can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0075] In addition, the technical solutions of each embodiment of the present application can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection required by the present application.

[0076] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, without deviating from the spirit of the present application or exceeding the scope defined by the appended claims.

Claims

1. A platform door device, characterized in that: include: a top box having a mounting cavity provided therein; A sliding door unit, comprising a first sliding door module and a second sliding door module, wherein each of the first sliding door module and the second sliding door module comprises at least three door bodies; a drive unit fixedly disposed in the mounting cavity, the drive unit comprising a first drive module and a second drive module, the first drive module comprising first drive members whose number is no greater than the number of door bodies in the first sliding door module, the second drive module comprising second drive members whose number is no greater than the number of door bodies in the second sliding door module, the first drive members and the second drive members being respectively in driving connection with the corresponding door bodies; Among them, along the entry and exit direction of the door body, the projections of multiple first driving members have no overlapping areas or at most partial areas overlap, the projections of multiple second driving members have no overlapping areas or at most partial areas overlap, and the projections of the first driving member and the second driving member have no overlapping areas or at most partial areas overlap.

2. A platform door device according to claim 1, characterized in that: The number of the first driving members is less than the number of door bodies in the first sliding door module, and the number of the second driving members is less than the number of door bodies in the second sliding door module. At least one of the door bodies in the first sliding door module is provided with a first transmission assembly, and the first transmission assembly is transmission-connected to the remaining door bodies; at least one of the door bodies in the second sliding door module is provided with a second transmission assembly, and the second transmission assembly is transmission-connected to the remaining door bodies.

3. A platform door device according to claim 2, characterized in that: There are three door bodies in the first sliding door module and the second sliding door module, and the three door bodies are respectively configured as a first sliding door, a second sliding door and a third sliding door. The first transmission assembly includes two transmission guide wheels fixedly provided on the second sliding door, and a transmission belt is provided between the two transmission guide wheels. The first sliding door and the third sliding door are respectively fixedly provided with a transmission part fixedly connected to the transmission belt, and the first sliding door and the third sliding door are respectively transmission-connected to the corresponding first driving member.

4. A platform door device according to claim 3, characterized in that: The straight-line distance between the two transmission guide wheels is not shorter than the unit length of one door body, and along the entry and exit direction of the door body, the transmission part on the first sliding door and the transmission part on the third sliding door are respectively arranged on both sides of the second sliding door.

5. A platform door device according to claim 3, characterized in that: Along the horizontal direction, the two first driving members in the first driving module are located on the same plane and are staggered in the direction of movement of the door body, while the two second driving members in the second driving module are staggered in the vertical direction, and one of the second driving members is located on the same plane as the first driving member.

6. A platform door device according to claim 3, characterized in that: When the door bodies in the first sliding door module and the second sliding door module are overlapped and stored, the moving speed of the second sliding door is 1 / 2 of the corresponding first sliding door or the third sliding door.

7. The platform door device according to claim 1, characterized in that: The first driving member includes a first driving motor and a first guide wheel, and the first driving motor and the first guide wheel are transmitted through a first driving belt, and the first driving belt is connected to the corresponding door body in the first sliding door module; the second driving member includes a second driving motor and a second guide wheel, and the second driving motor and the second guide wheel are transmitted through a second driving belt, and the second driving belt is connected to the corresponding door body in the second sliding door module.

8. The platform door device according to claim 1, characterized in that: A plurality of slide rails are fixedly provided in the top box, and a slider is fixedly provided on the door body. The number of the slide rails is equal to the number of the door bodies, and the slide rails are respectively and correspondingly provided directly above the door bodies.

9. A platform door system, characterized in that: The platform door device comprises the platform door device according to any one of claims 1 to 8, wherein the platform door devices are in multiple groups, and the multiple groups of platform door devices are linearly distributed.

10. The platform door system according to claim 9, characterized in that: It also includes an identification system, which is communicatively connected to the platform door device. The identification system is used to collect the vehicle model information and actual parking position of the incoming train in real time. The platform door device adjusts the opening area of ​​the sliding door unit in the platform door device according to the vehicle model information and actual parking position of the incoming train collected by the identification system.

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