CN210258396U - Integrally-sliding multi-section-adjusted safety protection screen for train platform - Google Patents

Abstract

The utility model relates to a train platform safety protection screen with integral sliding and multi-section adjustment, which comprises a limiting slide way, a modular sliding screen unit, a towing connecting plate and a follow-up adjusting system; the modular sliding screen units are arranged on the limiting slide way and can be driven by a sliding driving device in the follow-up adjusting system to integrally slide along the limiting slide way and simultaneously adjust the relative positions, and the adjacent 2 modular sliding screen units are connected through a towing connecting plate; the modular sliding screen unit consists of 1 middle screen, 2 connecting screens and 2 screens with door ends. The utility model discloses a modular unit structure adjusts the protection problem that adapts to different model trains through whole slip, multistage, through the accurate counterpoint of count follow-up instant adjustment realization and carriage door, safety protection screen simple structure, preparation convenience, the controllability is strong, and protecting effect is good, brings the experience of riding by bus that the passenger is good under the prerequisite of guaranteeing safety.

Description

Integrally-sliding multi-section-adjusted safety protection screen for train platform

Technical Field

The utility model relates to a platform safety protection technical field especially relates to a train platform safety protection screen that wholly slides multistage and adjusts.

Background

The train is a main transportation means across provinces and cities, and the stop time of the train at a platform is short, so that a 'people waiting for the train' mode is generally implemented, namely passengers enter the platform in advance for a few minutes to wait for the arrival of the train; at present, basically, no protective measures are provided between each train platform and a rail, and personal accidents are easy to happen, such as forced crossing of the rail by a wrong platform, falling onto the rail due to crowding or physical reasons, or falling of children from the platform due to the fact that parents cannot take care of the children; in addition, it is also common for items to fall into the gap between the platform and the rails, and for trolley cases or strollers to slide and fall onto the rails. The utility model provides a train platform safety protection screen, the railway station waiting environment who anticipates to create a good safety: the potential safety hazard is avoided from the source, the safety factor of the platform is improved, and the service quality of the station is improved.

The existing train platform is generally only provided with a safety warning line, and platform workers can blow whistle to remind passengers of safety, but the measures only have the warning effect and do not have the protection effect. At present, the subway station basically realizes the totally enclosed protection, and because the types of the subway cars are basically the same, and the positioning is accurate when the subway station parks, the fixed subway shielding door is conveniently adopted to isolate the track from the platform; in addition, the speed of the subway is low, the atmospheric pressure difference between the periphery of the subway body and a platform is small, and the side pressure of the subway shield door is small; the subway line is simple, and the requirement on the parking time is not high; however, for the trains, railway lines are distributed in a criss-cross mode, a plurality of trains share one platform, the parking time requirement is very accurate, and the subsequent trains are influenced by whether the trains are parked or not.

The main reason that the train platform can not realize full-shielding protection at present is that the trains in operation at present in China have various models, and the carriage lengths are different, so that a fixed type protection device can not be adopted; meanwhile, the train body is generally longer, the manual positioning parking precision is poor, even if the locomotive position is accurately positioned, the more the later carriage parking position is different from the preset position of the platform due to the different lengths of the carriages, and the passengers need to run to search for the corresponding carriage.

The Chinese patent with the application number of 201410470374.X discloses a platform safety door suitable for all train types, which is characterized in that a sliding door assembly is completely arranged on the whole platform along the length direction, so that any position of the platform can be a door opening area, and the door opening position of train doors of all train types is contained; although the door can be opened at any position theoretically, the position of each door is fixed, so that the position alignment of the door opening area and the position alignment of the carriage door cannot be ensured, if deviation exists, the door frame can be positioned in the carriage door opening area, the people can be influenced to get on or off the train, and even the problem that the trample accident happens due to congestion or a large portable box body is blocked and cannot be taken down is caused. In addition, the door opening position can be determined only after the train is stopped, and the corresponding sliding door can be opened only through manual observation and operation, so that the door opening speed is influenced, and excessive manpower and time are involved.

The Chinese patent with the application number of 201710963957.X discloses an overlapping type platform screen door, when two groups of overlapping doors are opened and combined oppositely, the net opening of a sliding door can be multiplied, and the difficult problems that the fixed door of the existing platform screen door cannot be arranged and the net opening of the sliding door can be multiplied when the size of the fixed door is limited are solved. However, increasing the net opening of the sliding door also results in the area on both sides of the car door being unprotected, and therefore it is not the best way to solve the problem.

In addition, the prior platform shielding device mostly adopts a double-track structure with overlapped inner and outer doors, the double tracks are arranged on the ground in parallel or arranged one above the other, and the structure is complex and is not beneficial to installation. The platform shielding device generally adopts a structural form that the body is fixed and the door body slides, and most of the platform shielding devices are provided with fixed door frames, so that the platform shielding device is small in adjusting range and difficult to really adapt to the protection requirements of trains of various types.

Disclosure of Invention

The utility model provides a train platform safety protection screen that whole slip multistage was adjusted adopts the modularization unit structure, adjusts the protection problem that adapts to different model trains through whole slip, multistage, realizes the accurate counterpoint with the carriage door through the instant adjustment of count follow-up, safety protection screen simple structure, preparation are convenient, and the controllability is strong, and the protecting effect is good, can take for passenger good experience by bus under the prerequisite of guaranteeing safety.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the safe protective screen for the train platform with integral sliding and multi-section regulation comprises a limiting slideway, a modular sliding screen unit, a towing connecting plate and a follow-up regulating system; the limiting slide way is arranged at the edge of the platform in parallel to the train track, the modular sliding screen units are arranged on the limiting slide way and can slide along the limiting slide way integrally under the driving of a sliding driving device in the follow-up adjusting system and simultaneously adjust the relative positions, and the adjacent 2 modular sliding screen units are connected through a towing connecting plate; the modular sliding screen unit consists of 1 middle screen, 2 connecting screens and 2 screens with door ends, wherein the two sides of the middle screen are respectively provided with the connecting screens, the outer sides of the connecting screens are respectively provided with the screens with door ends, sleeve embedding type connecting structures are adopted between the middle screen and the connecting screens, between the connecting screens and the screens with door ends and between the screens with door ends and the dragging connecting plates, and the length of the single modular sliding screen unit and the length of the whole safety protection screen can be telescopically adjusted; the follow-up adjusting system comprises a sliding driving device and a distance measuring sensor which are arranged on each middle screen, each connecting screen and each screen with a door end, and a video catcher arranged on each middle screen, wherein the sliding driving device is used for driving the middle screens, the connecting screens and the screens with the doors ends to move along a limiting slide way, the distance measuring sensor is used for measuring the distance between each relative motion part, and the video catcher is used for catching train identification plates arranged in the middle of each carriage of a train; the screen with the door end is provided with a sliding door which is driven by a sliding door driving mechanism to realize the door opening and closing actions.

The limiting slideway is a bottom embedded slideway, the limiting slideway adopts a metal profiling track, a door plate accommodating space is arranged in the middle, the bottom is fixedly connected with the concrete ground through foundation bolts, and a plurality of supporting vertical surfaces and supporting planes are arranged on two sides and are used for being in rolling contact with horizontal supporting wheels and lateral supporting wheels on the sliding driving device; the outer side of the limiting slide way is buried with gravels; stainless steel cover plates are arranged on two sides of the top.

The middle screen consists of a body frame, a front shell plate, a rear shell plate, a wide screen display, a ventilation grid and an end inserting plate; the body frame is a frame structure made of metal section steel, the upper part of one side of the body frame, which is back to the train track, is embedded with a wide screen display, and the lower part of the body frame is embedded with a plurality of ventilation grids; the outer surface of the body frame except the wide screen display and the ventilation grille is covered by a front shell plate and a rear shell plate, wherein one side back to the train track is covered by the front shell plate, and one side facing the train track is covered by the rear shell plate; the two ends of the body frame are respectively connected with an end part inserting plate through an end part connecting plate, the middle part of the end part inserting plate is provided with a ventilation net, and the outer end of the end part inserting plate is provided with a plurality of convex clamping blocks along the height direction for being matched and connected with slots on adjacent connecting screens; the middle part of the middle screen and the rear shell plate between the wide screen display and the ventilation grille are provided with video catchers, and two sides of the bottom of the middle screen and two ends of each side are respectively provided with a group of sliding driving devices; the bottom of the body frame is provided with a distance measuring sensor or a reflecting plate.

The connecting screen consists of a body frame, a front shell plate, a rear shell plate, a wide screen display, a ventilation grid and an end cladding plate; the body frame is a frame structure made of metal section steel, the upper part of one side of the body frame, which is back to the train track, is embedded with a wide screen display, and the lower part of the body frame is embedded with a plurality of ventilation grids; the outer surface of the body frame except the wide screen display and the ventilation grille is covered by a front shell plate and a rear shell plate, wherein one side back to the train track is covered by the front shell plate, and one side facing the train track is covered by the rear shell plate; the two ends of the body frame are respectively provided with an end part cladding plate, and the center of the end part cladding plate is provided with a slot for being in sliding insertion connection with an end part inserting plate at the corresponding end of an adjacent middle screen or a screen with a door end to form a nested type adjusting structure; two sides of the bottom of the connecting screen and two ends of each side are respectively provided with a group of sliding driving devices; the bottom of the body frame is provided with a distance measuring sensor or a reflecting plate.

In the modular sliding screen unit, 2 screens with door ends are symmetrically arranged; each screen with a door end consists of a sliding door, a body frame, a front shell plate, a rear shell plate, an information display screen, a ventilation grid and an end inserting plate; the body frame is a frame structure made of metal section steel, the middle part of the body frame is provided with a sliding door and a sliding door holding space, the upper parts of the two ends of the body frame are embedded with information display screens, and the body frame below the information display screens is embedded with ventilation grids; the outer surface of the body frame except the sliding door, the information display screen and the ventilation grille is covered by a front shell plate and a rear shell plate, wherein one side back to the train track is covered by the front shell plate, and one side facing the train track is covered by the rear shell plate; one end of the body frame is connected with an end part inserting plate through an end part connecting plate, the middle part of the end part inserting plate is provided with a ventilation net, and the outer end of the body frame is provided with a plurality of convex clamping blocks along the height direction for being matched and connected with slots on adjacent connecting screens; the other end of the body frame is provided with an end part coating plate, and the center of the end part coating plate is provided with a slot for being in sliding insertion with an end part inserting plate at the corresponding end of the adjacent group of modular sliding screen units to form a nested type adjusting structure; two sides of the bottom of the screen with the door end and two ends of each side are respectively provided with a group of sliding driving devices; the top of the screen with the door end is provided with a sliding door driving mechanism; the bottom of the body frame is provided with a distance measuring sensor or a reflecting plate.

The sliding door consists of a door body, a perspective window, a ventilation grid and a supporting pulley, a sliding door accommodating space is reserved on a body frame with a screen at the door end, and two sides of the sliding door accommodating space are covered by a front shell plate and a rear shell plate; the bottom of the screen with the door end is provided with a slideway, the slideway consists of 2 slideway plates which are respectively arranged at the bottom of the front shell plate and the bottom of the rear shell, the sliding door moves between a door closing position and a sliding door containing space along the slideway under the support of a plurality of supporting pulleys, and the sliding door is hidden in the screen with the door end when completely entering the sliding door containing space; a perspective window is embedded in the upper part of the sliding door, and the perspective window and the door body are sealed through a sealing rubber ring; the door body below the perspective window is provided with a ventilation grid.

The sliding door driving mechanism consists of a sliding door driving motor, an output belt wheel, a driving belt wheel, a first driven belt wheel, a second driven belt wheel, a driving belt and a transmission belt; the screen with the door end is provided with a longitudinal notch at the top of the corresponding sliding door and the accommodating space of the sliding door, the edges of two ends of the longitudinal notch are respectively provided with a first driven belt wheel and a second driven belt wheel, wherein the first driven belt wheel is arranged at one end close to the accommodating space of the corresponding sliding door, and the first driven belt wheel and the driving belt wheel are coaxially arranged; a sliding door driving motor is arranged at the outer end of the first driven belt wheel, an output belt wheel is arranged on an output shaft of the sliding door driving motor, the output belt wheel is in transmission connection with the driving belt wheel through a driving belt, and the first driven belt wheel is in transmission connection with the second driven belt wheel through a driving belt; the driving belt and the transmission belt are strip belts; the top of the door body of the sliding door is provided with a belt fixing piece, two ends of a transmission belt are respectively connected with the belt fixing piece, one end of the transmission belt is fixedly connected, and the other end of the transmission belt is fixed through a pre-tightening bolt and can adjust pre-tightening force; the two sides of the belt fixing piece are respectively provided with a belt guiding piece, and the two ends of the transmission belt respectively penetrate through the corresponding belt guiding pieces and then are connected with the belt fixing piece.

The sliding driving device consists of a T-shaped plate, a gear, a rack, a horizontal supporting wheel, a lateral supporting wheel and a sliding driving motor; the vertical plate in the T-shaped plate is fixedly connected with the body frame, the horizontal plate in the T-shaped plate stretches outwards and is provided with a horizontal supporting wheel, the top and the bottom of the T-shaped plate are respectively provided with a lateral supporting wheel, and the horizontal supporting wheel and the lateral supporting wheel are respectively in rolling contact with a supporting vertical surface and a supporting plane on the limiting slide way; a sliding driving motor is arranged below the horizontal plate, an output shaft of the sliding driving motor is connected with a gear, and the gear is in meshing transmission with a rack longitudinally arranged in the limiting slide way; under the drive of the sliding drive motor, the movement of the corresponding middle screen, the connecting screen or the screen with the door end along the limit slide way and the adjustment of the position relationship of each part are realized through the gear rack transmission.

The two ends of the towing connecting plate are respectively provided with a plurality of convex clamping blocks along the height direction for matching and connecting with the slots on the corresponding screen with the door end; the two ends of the top of the towing connecting plate are respectively provided with a suspension wheel, the top of the slot corresponding to the screen with the door end is provided with a chute, and the suspension wheels are embedded in the chute and can slide along the chute; the towing connecting plate is provided with a ventilation net.

The middle screen, the connecting screen and the screen with the door end are respectively provided with a line inlet and a line outlet at two ends of the bottom, the power line and the communication line which are connected with the follow-up adjusting system and the sliding door driving device are led to the bottom and are wired through the line inlet and the line outlet, the adjacent line inlets and outlets are connected through a coiled pipe, and the coiled pipe is used for being sleeved at the outer sides of the power line and the communication line.

Compared with the prior art, the beneficial effects of the utility model are that:

1) the safety protection screen of the utility model consists of a plurality of modular sliding screen units, can slide along the whole limiting slide way, realizes the follow-up of the safety protection screen and the train on the basis, and lays a foundation for accurate positioning;

2) the distances among the middle screen, the connecting screen and the screen with the door end in each modular sliding screen unit can be accurately adjusted, and the distance among the modular sliding screen units can also be adjusted, so that the matching of the length of each modular sliding screen unit and the length of the corresponding carriage is realized on the basis, and according to statistical calculation, the safety protection screen can adapt to all train models in current operation;

3) by adopting a single-rail structure, only one limiting slide rail is needed to be embedded in the train platform corresponding to each safety protection screen, the construction is convenient, and the influence on the riding environment can be reduced to the minimum; the top of the limiting slide way is flush with the platform, and the passengers can get on or off the train; the cross section structure of the limiting slide way is high in utilization rate, the installation requirements of a horizontal support, a lateral support and a driving device can be met, the sliding driving motor is positioned below the horizontal plate, dust accumulation can be avoided, the meshing direction of the gear rack is in the vertical direction, the load of the sliding driving motor can be reduced, and therefore the service life of equipment is prolonged;

4) the length of each modular sliding screen unit is adjusted to be matched with the length of the corresponding train carriage through a sliding driving device, the distance between the relative motion parts (each screen and each sliding screen unit) is fed back through a distance measuring sensor, and the adjustment quantity is evenly distributed, so that the distance between the relative motion parts does not exceed the limit connection length of the supporting and hanging connecting plate, and the relative motion parts are not piled up and extruded or excessively stretched;

5) the train signboard in the middle of each train carriage is unique, the utility model adopts the video catcher to identify the train signboard, realizes the automatic counting of the train carriages, simultaneously takes the train signboard as the middle point of the adjusting position of each modular sliding screen unit, and symmetrically adjusts and links the two sides;

6) each modular sliding screen unit is provided with a ventilation grid, and each supporting and hanging connecting plate is provided with a ventilation net, so that the side pressure of the safety protection screen when a train enters a station is reduced, and the whole weight of the device is reduced; the front shell plate and the rear shell plate can be provided with sound-absorbing materials so as to reduce the noise when a train enters the station;

7) the information display screen at one side of the sliding door can completely display riding information, thereby facilitating the confirmation of passengers and preventing the passengers from getting on or getting off the vehicle or getting into the wrong compartment; the wide screen display on the middle screen and the connecting screen can be used for commercial culture propaganda and tourism culture propaganda.

Drawings

Fig. 1 is a schematic view of the structure of a safety screen according to the present invention (one of the modular sliding screen units is taken as an example).

Fig. 2 is a schematic structural view of the limiting slide way of the present invention.

Fig. 3 is a schematic cross-sectional view of the limiting slide of the present invention.

Fig. 4 is a schematic structural view of the middle screen of the present invention.

Fig. 5 is a schematic structural view of the body frame of the intermediate screen of the present invention.

Fig. 6 is a schematic structural view of the connecting screen of the present invention.

Fig. 7 is a schematic structural view of the body frame of the connecting screen of the present invention.

Fig. 8 is a schematic structural view of the screen with a door end of the present invention.

Fig. 9 is a schematic structural view of the body frame of the screen with door end of the present invention.

Fig. 10 is an installation schematic diagram of the sliding driving device of the present invention.

Fig. 11 is a view from direction a in fig. 10.

Fig. 12 is a schematic view of the matching relationship between the sliding driving device and the limiting slide way of the present invention.

Fig. 13 is a schematic structural view of the sliding door of the present invention.

Fig. 14 is a first schematic structural diagram of the sliding door driving mechanism according to the present invention.

Fig. 15 is a schematic structural diagram of a sliding door driving mechanism according to the present invention.

Fig. 16 is an enlarged view of a portion B in fig. 13.

Fig. 17 is the position schematic diagram of distance measuring sensor and line inlet and outlet.

Fig. 18 is a schematic view of the connection between the inlet and outlet of the adjacent lines through the coiled pipe.

Fig. 19 is a schematic structural view of the hitch coupler plate according to the present invention.

Fig. 20 is a schematic view of adjacent 2 modular sliding screen units connected by a hitch link.

Fig. 21 is a schematic view of 2 modular sliding screen units connected.

In the figure: 1. limit slide 101, stainless steel cover plate 102, cover plate fixing bolt hole 103, rack fixing bolt 104, anchor bolt hole 105, concrete foundation 106, gravel 2, middle screen 201, body frame 202, front shell plate 203, rear shell plate 204, wide screen display 205, ventilation grille 206, end insert plate 207, convex fixture block 208, end connecting plate 3, connecting screen 301, body frame 302, front shell plate 303, rear shell plate 304, wide screen display 305, ventilation grille 306, end cladding plate 4, screen 401 with door end, body frame 402, front shell plate 403, rear shell plate 404, information display screen 405, ventilation grille 406, end insert plate 407, convex fixture block 408, sliding door holding space 409, end connecting plate 410, end cladding plate 5, sliding door 501, window 502, ventilation grille 504, supporting pulley 505, sealing rubber ring 506, sliding door 504 Driving motor 507, output pulley 508, first driven pulley 509, second driven pulley 510, driving belt 511, driving belt 512, belt fixing piece 513, belt guiding piece 514, driving pulley 6, towing connecting plate 601, protruding clamping block 602, ventilating net 603, hanging wheel 604, sliding angle seal 7, sliding driving device 701, T-shaped plate 702, gear 703, rack 704, horizontal supporting wheel 705, lateral supporting wheel 706, sliding driving motor 8, distance measuring sensor 9, line inlet and outlet 10, video catcher 11, modular sliding screen unit 12 and serpentine pipe

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:

as shown in fig. 1, the integrally sliding multi-section adjustable safety protection screen for a train platform of the present invention comprises a limiting slide way 1, a modular sliding screen unit 11, a towing connecting plate 6 and a follow-up adjusting system; the limiting slide way 1 is arranged at the edge of the platform in parallel with the train track, a plurality of modular sliding screen units 11 are arranged on the limiting slide way 1 and can slide along the limiting slide way 1 integrally under the driving of a sliding driving device 7 in a follow-up adjusting system and simultaneously adjust the relative positions, and the adjacent 2 modular sliding screen units 11 are connected through a towing connecting plate 6 (as shown in figures 20 and 21); the modular sliding screen unit 11 is composed of 1 middle screen 2, 2 connecting screens 3 and 2 screens 4 with door ends, the two sides of the middle screen 2 are respectively provided with the connecting screens 3, the outer sides of the connecting screens 3 are respectively provided with the screens 4 with door ends, sleeve-embedded connecting structures are adopted between the middle screen 2 and the connecting screens 3, between the connecting screens 3 and the screens 4 with door ends, and between the screens 4 with door ends and the towing connecting plates 6, and the length of the single modular sliding screen unit 11 and the length of the whole safety protection screen can be telescopically adjusted; as shown in fig. 4, 6 and 8, the follow-up adjusting system comprises a sliding driving device 7 and a distance measuring sensor 8 (shown in fig. 17) which are arranged on each middle screen 2, each connecting screen 3 and each door-end screen 4, and a video catcher 10 (shown in fig. 4) which is arranged on each middle screen 2, wherein the sliding driving device 7 is used for driving the middle screen 2, each connecting screen 3 and each door-end screen 4 to move along the limit slideway 1, the distance measuring sensor 8 is used for measuring the distance between each relative moving part, and the video catcher 10 is used for catching a train signboard which is arranged in the middle of each carriage of the train; the screen 4 with the door end is provided with a sliding door 5, and the sliding door 5 is driven by a sliding door driving mechanism to realize the door opening and closing actions.

As shown in fig. 2 and 3, the limiting slideway 1 is a bottom embedded slideway, the limiting slideway 1 is a metal profiled rail, a door panel accommodating space is arranged in the middle of the limiting slideway 1, the bottom of the limiting slideway is fixedly connected with the concrete foundation 105 through an anchor bolt (the position of an anchor bolt hole 104 is shown in fig. 2), and a plurality of supporting vertical surfaces and supporting planes are arranged on two sides of the limiting slideway and are used for being in rolling contact with a horizontal supporting wheel 704 and a lateral supporting wheel 705 on the sliding driving device 7; the outer side of the limiting slide way 1 is buried with rubble 106; stainless steel cover plates 101 are arranged on two sides of the top (the positions of the cover plate fixing bolt holes 102 are shown in figure 2).

As shown in fig. 4 and 5, the middle screen 2 is composed of a body frame 201, a front shell plate 202, a rear shell plate 203, a wide screen display 204, a ventilation grille 205 and an end insertion plate 206; the body frame 201 is a frame structure made of metal steel, a wide screen display 204 is embedded in the upper part of one side, back to the train track, of the body frame 201, and a plurality of ventilation grids 205 are embedded in the lower part of the body frame 201; the outer surface of the body frame 201 except for the wide screen display 204 and the ventilation grille 205 is covered by a front shell plate 202 and a rear shell plate 203, wherein the side facing away from the train track is covered by the front shell plate 202, and the side facing towards the train track is covered by the rear shell plate 203; the two ends of the body frame 201 are respectively connected with an end insert plate 206 through an end connecting plate 208, the middle part of the end insert plate 206 is provided with a ventilation net, and the outer end is provided with a plurality of convex fixture blocks 207 along the height direction for matching connection with slots on the adjacent connecting screen 3; the middle part of the middle screen 2 and the rear shell plate 203 between the wide screen display 204 and the ventilation grille 205 are provided with video catchers 10, and two sides of the bottom of the middle screen 2 and two ends of each side are respectively provided with a group of sliding driving devices 7; the bottom of the body frame 201 is provided with a distance measuring sensor 8 or a reflecting plate.

As shown in fig. 6 and 7, the connecting screen 3 is composed of a body frame 301, a front shell plate 302, a rear shell plate 303, a wide screen display 304, a ventilation grille 305 and an end cladding plate 306; the body frame 301 is a frame structure made of metal steel, the upper part of one side of the body frame 301, which is back to the train track, is embedded with a wide screen display 304, and the lower part of the body frame 301 is embedded with a plurality of ventilation grids 305; the outer surface of the body frame 301 except for the wide screen display 304 and the ventilation grille 305 is covered by a front shell plate 302 and a rear shell plate 303, wherein the side facing away from the train track is covered by the front shell plate 302, and the side facing the train track is covered by the rear shell plate 303; the two ends of the body frame 301 are respectively provided with an end cladding plate 306, the center of the end cladding plate 306 is provided with a slot for assembling a set of embedded adjusting structure with the end plugboards 206 and 406 at the corresponding ends of the adjacent middle screen 2 or the screen 4 with the door end in a sliding and inserting way; two sides of the bottom of the connecting screen 3 and two ends of each side are respectively provided with a group of sliding driving devices 7; the bottom of the body frame 301 is provided with a distance measuring sensor 8 or a reflection plate.

As shown in fig. 1, in the modular sliding screen unit 11, 2 screens 4 with door ends are symmetrically arranged; as shown in fig. 8 and 9, each of the screens 4 with doors is composed of a sliding door 5, a body frame 401, a front shell plate 402, a rear shell plate 403, an information display screen 404, a ventilation grille 405 and an end insert plate 406; the body frame 401 is a frame structure made of metal section steel, the middle part of the body frame 401 is provided with a sliding door 5 and a sliding door holding space 408, the upper parts of the two ends of the body frame 401 are embedded with information display screens 404, and the body frame 401 below the information display screens 404 is embedded with a ventilation grille 405; the outer surface of the body frame 401 except for the sliding door 5, the information display screen 404 and the ventilation grille 405 is covered by a front shell 402 and a rear shell 402, wherein the side facing away from the train track is covered by the front shell 402 and the side facing the train track is covered by a rear shell 403; one end of the body frame 401 is connected with an end insert plate 406 through an end connecting plate 409, the middle part of the end insert plate 406 is provided with a ventilation net, and the outer end is provided with a plurality of convex fixture blocks 407 along the height direction for matching connection with the slots on the adjacent connecting screen 2; the other end of the body frame 401 is provided with an end cladding plate 410, and the center of the end cladding plate 410 is provided with a slot for being in sliding insertion with an end insertion plate at the corresponding end of the adjacent group of modular sliding screen units 11 to form a nested adjusting structure; two sides of the bottom of the screen 4 with the door end and two ends of each side are respectively provided with a group of sliding driving devices 7; the top of the screen 4 with the door end is provided with a sliding door driving mechanism; the bottom of the body frame 401 is provided with a distance measuring sensor 8 or a reflection plate.

As shown in fig. 13, the sliding door 5 is composed of a door body 501, a transparent window 502, a ventilation grille 503 and a supporting pulley 504, a sliding door holding space 408 is left on a body frame 401 of the screen 4 with a door end, and two sides of the sliding door holding space 408 are covered by a front shell plate 402 and a rear shell plate 403; the bottom of the screen 4 with door end is provided with a slideway, the slideway consists of 2 slideway plates which are respectively arranged at the bottom of the front shell plate 402 and the bottom of the rear shell 403, the sliding door 5 moves between a door closing position and a sliding door containing space 408 along a sliding rail under the support of a plurality of supporting pulleys 504, and the sliding door 5 is hidden in the screen 4 with door end when completely entering the sliding door containing space 408; a perspective window 502 is embedded in the upper part of the sliding door 5, and the perspective window 502 is sealed with the door body 501 through a sealing rubber ring 505; a ventilation grille 503 is arranged on the door body 501 below the transparent window 502.

As shown in fig. 14 to 16, the sliding door driving mechanism is composed of a sliding door driving motor 506, an output pulley 507, a driving pulley 514, a first driven pulley 508, a second driven pulley 509, a driving belt 510, and a transmission belt 511; the screen 4 with the door end is provided with a longitudinal notch at the top corresponding to the sliding door 5 and the sliding door accommodating space 408, the edges of the two ends of the longitudinal notch are respectively provided with a first driven pulley 508 and a second driven pulley 509, wherein, the first driven pulley 508 is arranged at one end close to the corresponding sliding door accommodating space 408, and the first driven pulley 508 and the driving pulley 514 are coaxially arranged; a sliding door driving motor 506 is arranged at the outer end of the first driven belt wheel 508, an output belt wheel 507 is arranged on the output shaft of the sliding door driving motor 506, the output belt wheel 507 is in transmission connection with a driving belt wheel 514 through a driving belt 510, and the first driven belt wheel 508 is in transmission connection with a second driven belt wheel 509 through a driving belt 511; the driving belt 510 and the transmission belt 511 are both strip belts; the top of the door body 501 of the sliding door 5 is provided with a belt fixing piece 512, two ends of the transmission belt 511 are respectively connected with the belt fixing piece 511, one end of the transmission belt 511 is fixedly connected, and the other end of the transmission belt 511 is fixed through a pre-tightening bolt and can adjust pre-tightening force; two sides of the belt fixing member 511 are respectively provided with a belt guiding member 513, and two ends of the driving belt 511 are respectively connected with the belt fixing member 512 after passing through the corresponding belt guiding members 513.

As shown in fig. 10-12, the sliding driving device 7 is composed of a T-shaped plate 701, a gear 702, a rack 703, a horizontal supporting wheel 704, a lateral supporting wheel 705 and a sliding driving motor 706; a vertical plate in the T-shaped plate 701 is fixedly connected with the body frame, a horizontal plate in the T-shaped plate 701 extends outwards in a hanging manner and is provided with a horizontal supporting wheel 704, the top and the bottom of the T-shaped plate 701 are respectively provided with a lateral supporting wheel 705, and the horizontal supporting wheel 704 and the lateral supporting wheel 705 are respectively in rolling contact with a supporting vertical surface and a supporting plane on the limiting slide way 1; a sliding driving motor 706 is arranged below the horizontal plate, an output shaft of the sliding driving motor 706 is connected with a gear 702, and the gear 702 is in meshing transmission with a rack 703 arranged in the limiting slide way 1 along the longitudinal direction (the position of a rack fixing bolt is shown in fig. 2); under the drive of the sliding drive motor 706, the rack 703 drives the corresponding middle screen 2, the connecting screen 3 or the screen 4 with a door end to move along the limit slideway 1 and adjust the position relationship among the parts.

As shown in fig. 19, a plurality of protruding blocks 601 are respectively disposed along the height direction at both ends of the towing connecting plate 6 for matching and connecting with the slots on the corresponding screen 4 with door end; the two ends of the top of the towing connecting plate 6 are respectively provided with a suspension wheel 603, the top of the slot corresponding to the screen 4 with the door end is provided with a chute, and the suspension wheels 603 are embedded in the chute and can slide along the chute; the towing connecting plate 6 is provided with a ventilation net 602.

Two ends of the bottom of the middle screen 2, the connecting screen 3 and the screen 4 with the door end are respectively provided with a line inlet 9, a power line and a communication line which are connected with the follow-up adjusting system and the sliding door driving device 7 are led to the bottom and are routed through the line inlet 9, adjacent line inlets 9 are connected through a coiled pipe 12 (as shown in figure 18), and the coiled pipe 12 is sleeved on the outer sides of the power line and the communication line.

The utility model discloses a train platform safety protection screen's that wholly slides multistage is adjusted application method as follows:

1) before a train enters a preset platform, corresponding to the platform and a track in an empty state, pre-adjusting safety protection screen air according to train information about the platform to be driven in, including train driving direction, train carriage number, length of each carriage, car door position and door opening direction, and displaying related information about the train to be driven in on an information display screen corresponding to one side of each sliding door, including corresponding train number, starting station and ending station names, car number and seat distribution diagram; the length of each modular sliding screen unit is adjusted to be matched with the length of a corresponding train carriage through a sliding driving device, the distance between the relative motion parts is fed back through a distance measuring sensor, the adjustment quantity is evenly distributed, and finally the position of the sliding door in the screen with the door end is adjusted to the position corresponding to the train door;

2) after the pre-adjustment is finished, the passengers can enter the platform to wait for the bus and can wait for the bus at the bus door position of the corresponding carriage in advance according to the display information;

3) when the train drives into the track of the corresponding platform at a reduced speed, the carriages which sequentially enter the platform are counted by the video capturers arranged on the middle screens; each modular sliding screen unit respectively searches for a corresponding carriage, takes a train identification number in the middle of the corresponding carriage as an adjusting positioning point, and carries out accurate positioning adjustment in the follow-up process with the train, so as to ensure that each sliding door keeps consistent with each corresponding carriage door when the train stops; after the train completely stops, the safety protection screen also completes positioning adjustment;

4) after each carriage door is opened, the sliding door is opened, and the sliding door driving mechanism slides the sliding door into the sliding door accommodating space according to the instruction;

5) passengers get on or off the bus through the opened carriage door and the opened sliding door; before the train is started again, the sliding door is firstly closed, and then each carriage door is closed by a attendant; after the train leaves the platform, the safety protection screen finishes one operation cycle.

Safety protection screen comprises a plurality of modular sliding screen units 11 gomphosis each other and links together, but relative movement between each modular sliding screen unit 11, modular sliding screen unit 11 adopts the principle of one-to-one to carry out the automatic adjustment counterpoint with the train carriage, can control the platform at the scene setting and control the manual work and control, or carry out high one-level control by the platform dispatch room with the networking of railway operation control network. When the field control platform is used for controlling, the sliding driving device 7, the distance measuring sensor 8 and the sliding door driving mechanism in the follow-up adjusting system are respectively connected with corresponding control buttons on the field control platform through a control system (PLC).

When the safety protection screen is adjusted in a follow-up mode, the carriages entering the platform in sequence can be counted by the video catcher 8 arranged on each middle screen 2, the induction patches can be pasted in the train identification numbers in the middle of the train carriages, and the induction patches are counted by the ultrasonic pulse counter and detected by the inductor in the range, so that accurate alignment is realized.

The middle screen 2, the connecting screen 3 and the screen 4 with the door end which form each modular sliding screen unit 11 are all provided with body frames with different structural forms, and the body frames are made of I-steel into main framework structures and have good bending resistance. The middle screen 2, the connecting screen 3 and the screen 4 with the door end are respectively provided with a large-area ventilation grid and a ventilation net, so that the side pressure of air flow to the safety protection screen when the train runs is reduced while safety isolation is realized, and the safe passing speed of the train which does not stop leaning is further improved, so that the effective utilization rate of the track in the train station is improved.

Each middle screen 2, the connecting screen 3 and the screen 4 with the door end are respectively provided with a wide screen display or an information display screen, the information display screens are convenient for passengers to obtain the relevant information of riding, and the wide screen displays can be used for propaganda and display of the culture and civilization of the city where the train station is located so as to promote the popularity of the cultural heritage and the tourist attraction of the city, promote the construction and development of the city and also can be used as an advertisement propaganda medium.

The sliding driving device 7 when each relative motion part (including middle screen, connecting screen, screen with door) of the modular sliding screen unit 11 moves is composed of a T-shaped plate 701, a radial force bearing high-strength supporting wheel set (including a horizontal supporting wheel 704 and a lateral supporting wheel 705), a sliding driving motor 706, a gear 702 and a rack 703 arranged on the inner wall of a limiting slideway 1, the supporting wheel set bears the external force borne by the safety protection screen when the safety protection screen is static and moves, the sliding driving motor 706 provides driving force, and the movement action is realized through the mutual meshing of the gear 702 and the rack 703.

The limiting slide way 1 adopts a pre-embedded type wear-resistant steel slide way, and can completely wrap the bottom of the safety protection screen including the sliding driving device 7; when no train passes through, the gravity of the safety protection screen is transmitted to the horizontal supporting wheel 704 through the body frame, and the horizontal supporting wheel 704 is contacted with the limiting slideway 1 to realize stable support; when a train passes through, the overturning force received by the safety protection screen is transmitted to the lateral supporting wheels 705 in the limiting slide way 1 by the body frame and then acts on the two side walls of the limiting slide way 1, and because the limiting slide way is a pre-embedded slide way, the concrete foundation 105 on the outer side of the limiting slide way has better bearing capacity, the structural stability of the limiting slide way can be ensured. The top of the limiting slide way 1 is provided with a stainless steel cover plate 101 for reducing the exposed area of the upper opening of the limiting slide way 1 and the gap between the upper opening of the limiting slide way 1 and the ground, preventing foreign matters from falling into the limiting slide way 1 to influence normal use and simultaneously ensuring the passing safety of passengers.

Consider that the train has the condition of not stopping the passing through of only slowing down to and safety protection screen wind both sides pressure differential influences its inboard suction, best position when the installation of safety protection screen is 1 central lines of spacing slide and 1 meters distance department from the platform edge, this distance can effectively reduce the pressure differential, reduces the suction to inboard personnel of screen and object, further improves application safety factor. Meanwhile, the distance of 1 meter is also a reserved position for train crew to get on the train and check tickets.

In each middle screen 2, connecting screen 3 and screen 4 with door end of the modular sliding screen unit 11, the power line and communication line share one line inlet and outlet 9, the line inlet and outlet 9 is arranged at the bottom of the body frame corresponding to the relative motion part, the line inlet and outlet 9 of the adjacent 2 relative motion parts are oppositely arranged and connected by a serpentine pipe 12, the power line and communication line are wired by the serpentine pipe 12, and the power line and communication line have enough reserved length when the length of the safety full-protection screen is adjusted, and simultaneously play a protection role.

The power supply mode can be independently adopted among the relative motion parts, the advantages are that the independence of the relative motion parts is strong, the maintenance is convenient, the defects are that a plurality of serial ports are provided, and the connection stability of each line is ensured by regular inspection.

Each relative motion part can also be supplied with power through a power supply sliding plate connected in parallel in the limiting slide way, and a spring piece extrusion type outer salient point current collector is correspondingly arranged on each relative motion part, namely contact type power acquisition is adopted. The advantages are that each relative motion part has strong independence, no connection serial port, and no restriction of power supply by line length. The disadvantage is that the parts of the current collector are easy to wear, and the elasticity of the spring leaf of the current collector and the wear condition of the outer convex point need to be checked regularly.

The adjustment and positioning of each modular sliding screen unit 11 are completed by a video catcher 10 arranged in the middle of the middle screen 2, the connecting screen 3, a distance measuring sensor 8 arranged at the bottom of the main frame of the screen 4 with a door end or a corresponding reflecting plate. The distance measuring sensor 8 mainly detects the distance between two adjacent relative moving parts (one moving part of the 2 relative moving parts is provided with the distance measuring sensor 8, and the other moving part is correspondingly provided with a reflecting plate), and feeds back the measured data to the control system, so that the length of the single modular sliding screen unit 11 and the distance between the modular sliding screen units 11 are matched with the overall length of the train and the length of each carriage through multi-section adjustment.

The following examples are carried out on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of the present invention is not limited to the following examples. The methods used in the following examples are conventional methods unless otherwise specified.

[ examples ] A method for producing a compound

The embodiment is a detailed description of the manufacture and installation of a safety protection screen for a railway platform with integral sliding and multi-section adjustment.

Firstly, installing a limiting slideway 1;

the limiting slide way 1 is internally provided with a rack 703 and fixed by bolts. The anchor bolts are embedded in the concrete foundation 105, a groove is formed in the concrete foundation 105, after the concrete is dried and condensed, the limiting slide way 1 provided with the rack 703 is placed in the groove, and the limiting slide way is matched, positioned and fixed through the anchor bolts. The outside of the limit slideway 1 and the groove can be filled with gravels 106.

Secondly, assembling a sliding driving device 7;

a T-shaped plate 701 is taken as a carrier, and 3 groups (totally 6) of supporting wheels are arranged on the T-shaped plate, wherein the horizontal supporting wheels 704 are 1 group, and the lateral supporting wheels 705 are 2 groups. A gear 702 is arranged at the outward extending shaft end of the slip driving motor 706, and then the slip driving motor 706 is placed in a reserved position in the middle of the T-shaped plate 701 and is fixed by a fixing bolt; a dust guard is installed above the slip driving motor 706.

Thirdly, assembling a screen 4 with a door end;

the welded and qualified body frame 401 with the door-end screen 4 is fixed in an upright state, a line inlet and outlet 9 and a reflecting plate are respectively arranged at the two sides of the bottom of the body frame, and the line inlet and outlet 9 and the reflecting plate are fixedly connected through countersunk screws. The ventilation grille 405 and the information display screen 404 are mounted on the front shell plate 402 and the rear shell plate 403 of the screen 4 with a door end, and the circuit of the information display screen 404 is led to the circuit inlet/outlet 9 of the body frame 401. The front shell 402 and the rear shell 403 are integrally covered on the main body frame 401 and fixed by bolts at various positions.

A honeycomb ventilation net is installed on the end insert plate 406 connected with the door-end screen 4, and then the end insert plate 406 is connected with the body frame 401 through an end connecting plate 409.

The sliding door 5 is made of a mature sliding door structure in the prior art, the bottom of the sliding door 5 is provided with a supporting pulley 504, two sides of the upper part of the door body 501 are respectively provided with a belt guide part 513 (a fixed block with 1 belt perforation), the middle part of the upper part of the door body 501 is provided with a belt fixing part 512 ((a fixed block with 2 belt perforations), the door body 501 is downwards inserted into an installation space formed by the front shell plate 402 and the rear shell plate 403 from a longitudinal notch at the upper part of the screen 4 with the door end, and the supporting pulley 504 is well contacted with a slideway at the bottom.

Installing a sliding door driving mechanism, installing a sliding door driving motor 506, an output belt wheel 507, a first driven belt wheel 508 and a second driven belt wheel 509, and installing a driving belt 510 on the output belt wheel 507 and the first driven belt wheel 508; one end of the driving belt 511 is inserted into one belt through hole of the belt fixing member 512, passes through a belt through hole of the belt guide member 513 on the corresponding side, bypasses the first driven pulley 508 and the second driven pulley 509, passes through a belt through hole of the belt guide member 513 on the other side, and finally passes through the other belt through hole of the belt fixing member 512, one end of the driving belt 511 is clamped on one side of the belt fixing member 512 by a clamp, and the other end is locked and fixed by a pre-tightening bolt after applying a proper pre-tightening force. Debugging after the installation starts sliding door driving motor 506, drives sliding door 5 through the motor is just reversing and opens and shuts, installs the protection casing additional in sliding door driving motor 506 outside after the debugging is accomplished.

4 sliding driving devices 7 are respectively arranged on two sides of the lower part of the screen 4 with the door end, are arranged on two sides and are fixed by bolts.

Fourthly, assembling and connecting the screen 3;

the installation of the main frame 301 of the connecting screen 3, the line inlet/outlet 9, the front shell plate 302, the rear shell plate 303, the wide screen display 304, the ventilation grille 305 and the sliding driving device 7 is the same as the installation mode of the screen 4 with the door end. The difference is that the structure of the main frame 301 of the connecting screen 3 is different from the structure of the screen 4 with door end, the sliding door 5 is not arranged on the connecting screen, a wide screen display 304 (which can be formed by a whole large display screen or by splicing a plurality of small display screens) is arranged on the connecting screen 3, and the distance measuring sensor 8 is correspondingly arranged at the position where the reflecting plate is stuck on the screen 4 with door end. The two ends of the connecting screen 3 are respectively provided with an end cladding plate 306.

Fifthly, assembling a middle screen 2;

the installation of the main frame 201, the line inlet and outlet 9, the front shell plate 202, the rear shell plate 203, the wide screen display 204, the ventilation grille 205 and the sliding driving device 7 of the middle screen 2 is the same as the installation mode of the screen 4 with the door end. The difference is that the structure of the main frame 201 of the middle screen 2 is different from the structure of the screen 4 with door, the sliding door 5 is not arranged on the main frame, but a wide screen display 204 is arranged on the main frame, the video catcher 10 is arranged on the middle part of the middle screen 2 and the rear shell plate 203 between the wide screen display 204 and the ventilation grille 205, and the end spile 206 is respectively arranged at the two ends of the middle screen 2.

Sixthly, assembling a towing connecting plate 6;

a plurality of convex fixture blocks 601 are processed at two ends of the dragging connecting plate 6 along the height direction, and a honeycomb-shaped ventilation net 602 is installed on the main body of the dragging connecting plate. Two sides of the top are respectively provided with 2 groups of suspension wheels 603. The bottom of the towing connecting plate 6 is provided with a sliding corner seal 604, which is used for sealing the bottom when inserted into the corresponding slot, so as to prevent foreign matters from falling into or injuring the human body.

Seventhly, assembling the modular sliding screen unit 11:

assembling a screen 4 with a door end, a connecting screen 3, a middle screen 2, a connecting screen 3 and a screen 4 with a door end in sequence, wherein the adjacent 2 relative moving parts are mutually embedded, namely, the corresponding end insert plate is correctly inserted into a clamping groove on the end cladding plate which is correspondingly connected; the line inlet and outlet 9 between the adjacent 2 relative moving parts are connected through a coiled pipe 12 to cover the power and communication lines. The 2 modular sliding screen units 11 are connected through a towing connecting plate 6, and edge sealing plates are arranged on two sides of the joint of the convex clamping block 601 and the clamping groove and fixedly connected with two sides of the clamping groove through bolts.

Eighthly, mounting the modular sliding screen unit 11 and the limiting slide way 1;

after the assembly of 2 modular sliding screen units 11 is completed, the modular sliding screen units can be pushed into the limiting slide way 1 from one end of the limiting slide way 1, and the part connected with the next modular sliding screen unit 11 is reserved outside the limiting slide way 1, so that the installation of the next modular sliding screen unit 11 is facilitated.

Treat that safety protection screen wind is whole to be installed and finish, the debugging of moving, before putting into use after whole debugs finish, at the top installation stainless steel apron 101 of spacing slide 1 with slide mouth closed cover, stainless steel apron 101 is fixed with countersunk head bolted connection to plug in the plug on bolt hole upper portion, make its top surface keep the parallel and level with ground, and outside is smooth level.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (10)

1. The train platform safety protection screen with integral sliding and multi-section adjustment is characterized by comprising a limiting slide way, a modular sliding screen unit, a towing connecting plate and a follow-up adjusting system; the limiting slide way is arranged at the edge of the platform in parallel to the train track, the modular sliding screen units are arranged on the limiting slide way and can slide along the limiting slide way integrally under the driving of a sliding driving device in the follow-up adjusting system and simultaneously adjust the relative positions, and the adjacent 2 modular sliding screen units are connected through a towing connecting plate; the modular sliding screen unit consists of 1 middle screen, 2 connecting screens and 2 screens with door ends, wherein the two sides of the middle screen are respectively provided with the connecting screens, the outer sides of the connecting screens are respectively provided with the screens with door ends, sleeve embedding type connecting structures are adopted between the middle screen and the connecting screens, between the connecting screens and the screens with door ends and between the screens with door ends and the dragging connecting plates, and the length of the single modular sliding screen unit and the length of the whole safety protection screen can be telescopically adjusted; the follow-up adjusting system comprises a sliding driving device and a distance measuring sensor which are arranged on each middle screen, each connecting screen and each screen with a door end, and a video catcher arranged on each middle screen, wherein the sliding driving device is used for driving the middle screens, the connecting screens and the screens with the doors ends to move along a limiting slide way, the distance measuring sensor is used for measuring the distance between each relative motion part, and the video catcher is used for catching train identification plates arranged in the middle of each carriage of a train; the screen with the door end is provided with a sliding door which is driven by a sliding door driving mechanism to realize the door opening and closing actions.

2. The safety protection screen for the train platform with the integral sliding and multi-section adjustment functions as claimed in claim 1, wherein the limiting slide way is a bottom embedded slide way, the limiting slide way is a metal profiled rail, the middle part of the limiting slide way is provided with a door panel accommodating space, the bottom of the limiting slide way is fixedly connected with a concrete foundation through a foundation bolt, and two sides of the limiting slide way are provided with a plurality of supporting vertical surfaces and supporting planes for rolling contact with horizontal supporting wheels and lateral supporting wheels on a sliding driving device; the outer side of the limiting slide way is buried with gravels; stainless steel cover plates are arranged on two sides of the top.

3. A one-piece sliding multi-segment adjustable train platform safety screen as in claim 1, wherein the intermediate screen is comprised of a body frame, a front shell, a rear shell, a wide screen display, a ventilation grille and end insert plates; the body frame is a frame structure made of metal section steel, the upper part of one side of the body frame, which is back to the train track, is embedded with a wide screen display, and the lower part of the body frame is embedded with a plurality of ventilation grids; the outer surface of the body frame except the wide screen display and the ventilation grille is covered by a front shell plate and a rear shell plate, wherein one side back to the train track is covered by the front shell plate, and one side facing the train track is covered by the rear shell plate; the two ends of the body frame are respectively connected with an end part inserting plate through an end part connecting plate, the middle part of the end part inserting plate is provided with a ventilation net, and the outer end of the end part inserting plate is provided with a plurality of convex clamping blocks along the height direction for being matched and connected with slots on adjacent connecting screens; the middle part of the middle screen and the rear shell plate between the wide screen display and the ventilation grille are provided with video catchers, and two sides of the bottom of the middle screen and two ends of each side are respectively provided with a group of sliding driving devices; the bottom of the body frame is provided with a distance measuring sensor or a reflecting plate.

4. The integrally sliding multi-segment adjustable train platform safety screen of claim 1, wherein the connecting screen is composed of a body frame, a front shell plate, a rear shell plate, a wide screen display, a ventilation grille and an end cladding plate; the body frame is a frame structure made of metal section steel, the upper part of one side of the body frame, which is back to the train track, is embedded with a wide screen display, and the lower part of the body frame is embedded with a plurality of ventilation grids; the outer surface of the body frame except the wide screen display and the ventilation grille is covered by a front shell plate and a rear shell plate, wherein one side back to the train track is covered by the front shell plate, and one side facing the train track is covered by the rear shell plate; the two ends of the body frame are respectively provided with an end part cladding plate, and the center of the end part cladding plate is provided with a slot for being in sliding insertion connection with an end part inserting plate at the corresponding end of an adjacent middle screen or a screen with a door end to form a nested type adjusting structure; two sides of the bottom of the connecting screen and two ends of each side are respectively provided with a group of sliding driving devices; the bottom of the body frame is provided with a distance measuring sensor or a reflecting plate.

5. A train platform safety screen with integral sliding multi-section adjustment according to claim 1, wherein in the modular sliding screen unit, 2 screens with door ends are symmetrically arranged; each screen with a door end consists of a sliding door, a body frame, a front shell plate, a rear shell plate, an information display screen, a ventilation grid and an end inserting plate; the body frame is a frame structure made of metal section steel, the middle part of the body frame is provided with a sliding door and a sliding door holding space, the upper parts of the two ends of the body frame are embedded with information display screens, and the body frame below the information display screens is embedded with ventilation grids; the outer surface of the body frame except the sliding door, the information display screen and the ventilation grille is covered by a front shell plate and a rear shell plate, wherein one side back to the train track is covered by the front shell plate, and one side facing the train track is covered by the rear shell plate; one end of the body frame is connected with an end part inserting plate through an end part connecting plate, the middle part of the end part inserting plate is provided with a ventilation net, and the outer end of the body frame is provided with a plurality of convex clamping blocks along the height direction for being matched and connected with slots on adjacent connecting screens; the other end of the body frame is provided with an end part coating plate, and the center of the end part coating plate is provided with a slot for being in sliding insertion with an end part inserting plate at the corresponding end of the adjacent group of modular sliding screen units to form a nested type adjusting structure; two sides of the bottom of the screen with the door end and two ends of each side are respectively provided with a group of sliding driving devices; the top of the screen with the door end is provided with a sliding door driving mechanism; the bottom of the body frame is provided with a distance measuring sensor or a reflecting plate.

6. The screen of claim 5, wherein the sliding door is composed of a door body, a perspective window, a ventilation grid and a supporting pulley, a body frame with a screen at the door end is provided with a sliding door holding space, and two sides of the sliding door holding space are covered by a front shell plate and a rear shell plate; the bottom of the screen with the door end is provided with a slideway, the slideway consists of 2 slideway plates which are respectively arranged at the bottom of the front shell plate and the bottom of the rear shell, the sliding door moves between a door closing position and a sliding door containing space along the slideway under the support of a plurality of supporting pulleys, and the sliding door is hidden in the screen with the door end when completely entering the sliding door containing space; a perspective window is embedded in the upper part of the sliding door, and the perspective window and the door body are sealed through a sealing rubber ring; the door body below the perspective window is provided with a ventilation grid.

7. A train platform safety protection screen with integral sliding multi-section adjustment according to claim 5, wherein the sliding door driving mechanism is composed of a sliding door driving motor, an output belt wheel, a driving belt wheel, a first driven belt wheel, a second driven belt wheel, a driving belt and a transmission belt; the screen with the door end is provided with a longitudinal notch at the top of the corresponding sliding door and the accommodating space of the sliding door, the edges of two ends of the longitudinal notch are respectively provided with a first driven belt wheel and a second driven belt wheel, wherein the first driven belt wheel is arranged at one end close to the accommodating space of the corresponding sliding door, and the first driven belt wheel and the driving belt wheel are coaxially arranged; a sliding door driving motor is arranged at the outer end of the first driven belt wheel, an output belt wheel is arranged on an output shaft of the sliding door driving motor, the output belt wheel is in transmission connection with the driving belt wheel through a driving belt, and the first driven belt wheel is in transmission connection with the second driven belt wheel through a driving belt; the driving belt and the transmission belt are strip belts; the top of the door body of the sliding door is provided with a belt fixing piece, two ends of a transmission belt are respectively connected with the belt fixing piece, one end of the transmission belt is fixedly connected, and the other end of the transmission belt is fixed through a pre-tightening bolt and can adjust pre-tightening force; the two sides of the belt fixing piece are respectively provided with a belt guiding piece, and the two ends of the transmission belt respectively penetrate through the corresponding belt guiding pieces and then are connected with the belt fixing piece.

8. A safety screen for a train platform with integral sliding multi-section adjustment according to claim 1, 3, 4 or 5, wherein the sliding driving device is composed of a T-shaped plate, a gear, a rack, a horizontal supporting wheel, a lateral supporting wheel and a sliding driving motor; the vertical plate in the T-shaped plate is fixedly connected with the body frame, the horizontal plate in the T-shaped plate stretches outwards and is provided with a horizontal supporting wheel, the top and the bottom of the T-shaped plate are respectively provided with a lateral supporting wheel, and the horizontal supporting wheel and the lateral supporting wheel are respectively in rolling contact with a supporting vertical surface and a supporting plane on the limiting slide way; a sliding driving motor is arranged below the horizontal plate, an output shaft of the sliding driving motor is connected with a gear, and the gear is in meshing transmission with a rack longitudinally arranged in the limiting slide way; under the drive of the sliding drive motor, the movement of the corresponding middle screen, the connecting screen or the screen with the door end along the limit slide way and the adjustment of the position relationship of each part are realized through the gear rack transmission.

9. The screen of claim 1, wherein the two ends of the towing connecting plate are respectively provided with a plurality of protruding blocks along the height direction for matching and connecting with the slots on the screen with the door end; the two ends of the top of the towing connecting plate are respectively provided with a suspension wheel, the top of the slot corresponding to the screen with the door end is provided with a chute, and the suspension wheels are embedded in the chute and can slide along the chute; the towing connecting plate is provided with a ventilation net.

10. The screen of claim 1, wherein the middle screen, the connecting screen and the screen with door end are respectively provided with a circuit inlet and outlet at two ends of the bottom, the power circuit and the communication circuit connected with the servo adjusting system and the sliding door driving device are led to the bottom and are routed through the circuit inlet and outlet, the adjacent circuit inlets and outlets are connected through a serpentine pipe, and the serpentine pipe is used for being sleeved outside the power circuit and the communication circuit.

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