CN116220515B

CN116220515B - Ground intelligent lifting platform screen door suitable for multi-standard railway vehicle

Info

Publication number: CN116220515B
Application number: CN202310075582.9A
Authority: CN
Inventors: 王涛; 谢红太; 王伟; 朱宝红; 马敬武; 孙荣刚
Original assignee: China Design Group Co Ltd
Current assignee: China Design Group Co Ltd
Priority date: 2023-02-07
Filing date: 2023-02-07
Publication date: 2023-10-27
Anticipated expiration: 2043-02-07
Also published as: CN116220515A

Abstract

The invention relates to an on-ground intelligent lifting platform screen door suitable for a multi-system railway vehicle, which mainly comprises a door leaf body, a screen door lifting system, a protection height compensation telescopic system, a screen door unit combined connection mechanism, a screen door protection system and a linkage control unit. The shielding door lifting system comprises a driving lifting mechanism and a clamping connecting mechanism which are symmetrically arranged on the left and right sides of the door leaf body; the protection height compensation telescopic system is a glass plate telescopic mechanism with steplessly adjustable platform protection height, and the shielding door protection system is arranged at the edge of the platform and used for protecting the shielding door above the shielding door from trampling and protecting when the platform shielding door is in a descending working state. The device has smaller engineering for reforming the existing platform and low investment cost, and can effectively meet the intelligent alignment opening and closing requirements of platform doors for boarding and disembarking of stop passengers of the multi-system vehicles with different positions and size limiting requirements under the multi-network fusion background.

Description

Ground intelligent lifting platform screen door suitable for multi-standard railway vehicle

Technical Field

The invention relates to the field of civil engineering of rail transit platforms, in particular to an intelligent over-and-under type platform screen door applicable to multi-system railway vehicles.

Background

At present, china has entered a new stage of promoting new urbanization by taking urban groups and urban circles as main bodies. The "schema for construction of the traffic offence" issued in 2019 proposes that the traffic of the main rail, the inter-urban rail, the urban (suburban) rail and the urban rail are integrated and developed, and a railway network with high quality development and a comprehensive transportation junction are constructed. The urban road traffic system is characterized in that construction traffic is accelerated in the national 'fourteen five' and 2035 long-range planning, urban road ring traffic integration is promoted, inter-urban railway and urban (suburban) railway construction is accelerated, urban rail traffic development is orderly promoted, and a multi-level rail traffic system based on 'four-network integration' is constructed. Based on the characteristics of regional networking operation, interconnection and intercommunication, resource sharing, intensive utilization and the like, the technical requirements and management modes adapting to multi-level rail transit integrated operation in China are constructed, and the goals of integrated operation, integrated management and integrated service are realized.

The platform screen door system is a continuous screen which is arranged on the platform edge, isolates the passenger waiting area from the train running area, corresponds to the train door and can open and close the sliding door in a multistage control manner, and generally has full height, half height, airtight and non-airtight parts, namely screen doors or platform doors for short. When the train arrives and starts, the shielding door can be automatically opened and closed, the driving space and the waiting space of the passengers are mechanically isolated, and a safe and comfortable waiting environment is created for the passengers. Under the background of multi-level rail transit fusion, because of numerous train models, different vehicle door arrangement positions of different vehicle models and other factors, the platform door at the existing fixed door opening position is difficult to adapt to the requirements of different vehicle models of multi-system vehicles, and meanwhile, platform shielding doors are not arranged on most high-speed railways and inter-city railway platforms, so that certain hidden hazards exist for driving safety.

The invention discloses a high-speed rail platform door with an adjustable door opening position, which relates to the technical field of high-speed rail/inter-city railway platform shielding doors, in particular to a high-speed rail platform door with an adjustable door opening position, and comprises a plurality of fixed door frames which are arranged on the same straight line along the length direction of the platform edge and are connected with each other, wherein a plurality of movable units are arranged in each fixed door frame, and each movable unit comprises a movable door, a first telescopic device, a second telescopic device, a first driving piece and a second driving piece; the first telescopic device and the second telescopic device are respectively positioned at two sides of the movable door, first fixing devices matched with each other are arranged between the movable units and the fixed door frame, and second fixing devices are also arranged between adjacent movable units. The technology can only solve the problem that the door opening position cannot be adjusted for different vehicle types within a certain error range, and can not be solved for the up-and-down riding of the train parking door at the upright post position; the movable door is in the range of the unit upright post, the functions of moving and stabilizing and fixing are changed, and the installation stability and the practicability are insufficient.

The Chinese patent with the bulletin number of CN111775965B and the name of 'a lower-drive staggered-layer high-speed rail platform door' discloses a lower-drive staggered-layer high-speed rail platform door, which comprises a plurality of movable door unit groups continuously distributed along the platform direction, wherein each movable door unit group comprises a first movable door, a second movable door, a third movable door and a fourth movable door which are sequentially arranged in a closing state; the first movable door and the third movable door are arranged in the first row, and the second movable door and the fourth movable door are arranged in the second row; the driving devices of the first movable door and the third movable door are arranged at the bottom of the first row and are staggered up and down, and the driving devices of the second movable door and the fourth movable door are arranged at the bottom of the second row and are staggered up and down; the first movable door and the fourth movable door are configured to be capable of moving by 1 or 2 movable door widths towards the central position of the movable door unit group where the first movable door and the fourth movable door are positioned under the drive of the driving mechanism; the second and third movable doors are configured to be movable by 1 movable door width to the left or right thereof under the drive of the driving device thereof. The technology adopts a staggered door opening mode, so that the space width of each shielding door section is inconsistent, passengers can not get on or off the door well, and certain potential safety hazards exist; the staggered driving door opening driving mode of the plurality of belt driving systems at the lower side is adopted, the occupied space is large, meanwhile, the arrangement distance of the driving belt driving systems of the shielding door units at the two sides is far, and the working stability, the sensitivity and the accuracy are greatly reduced.

The Chinese patent application with the publication number of CN104176067A, named as platform safety door suitable for all train types, discloses a platform safety door structure, wherein two groups of sliding door assemblies are arranged on the same upright post in a staggered way, the door body structure comprises a left sliding door and a right sliding door with opposite sliding directions, and after a train arrives at a station to be stationary, the left sliding door of the door body structure is overlapped with the right sliding door of the door body structure adjacent to the left after sliding; after the right sliding door of the door body structure slides, the right sliding door is overlapped with the left sliding door of the right adjacent door body structure, so that the automobile door structure is suitable for the parking automobile door positions of different automobile types. However, in this technical solution, since the stroke of the left/right sliding is fixed and each sliding door realizes the door opening action only through one-way movement, the adaptability of this way to the vehicle model still has a limitation in practice, and the door opening position cannot be adjusted according to different vehicle models, for example, when the vehicle door is located in the overlapping area of the left/right sliding door at the train parking position, the solution cannot realize the counterpoint door opening.

The Chinese patent application with publication number of CN111762204A, named as a lifting folding platform protector suitable for various vehicle types, discloses a lifting folding platform protector suitable for various vehicle types, comprising a lifting folding platform door, a stand column and an end door; a plurality of lifting folding platform doors and upright posts sequentially and alternately form longitudinal platform doors along the longitudinal direction of the rail, and two ends of the longitudinal platform doors are respectively provided with transverse end doors; the width of each lifting folding platform door is equal, and the sum of the widths of all lifting folding platform doors accounts for more than 80% of the total length of the longitudinal platform doors; the multi-piece shielding folding piece that the lift folding platform door included articulates from top to bottom in proper order, and the both ends of shielding folding piece can slide from top to bottom on the stand of both sides, fold from top to bottom and expand through the lift folding platform door, replace the fixed door and the sliding door of traditional platform door, realize the shielding function of platform door. The folding piece of the vertical lifting platform door is arranged above the platform door, so that potential safety hazards of injuring passengers after falling exist, and because of the limitation of the folding structure, the platform surface always needs to be kept with a fixed installation and transmission structure, and the maximum opening of the platform door always is influenced by the structures, so that a channel between a platform surface and a train door cannot be opened at will.

The Chinese patent application with the publication number of CN206844928U and the name of 'half-height safety door with an upper driving mechanism' discloses a half-height safety door with an upper driving mechanism, which comprises a door body structure, a driving mechanism and a supporting structure, wherein the door body structure comprises two sliding doors arranged left and right and a fixed door arranged between the two sliding doors, and a top box is fixedly arranged at the top of the fixed door; the driving mechanism is integrally arranged in the top box and comprises two sets of driving units which are respectively and continuously connected with the two sliding doors, and the two sets of driving units respectively and independently drive the sliding doors to execute opening and closing operations; the support structure is arranged at the bottom of each sliding door and is used for supporting the sliding doors. The accumulated error of the door body switch synchronization can be effectively reduced, the synchronization of the sliding door switch is ensured, and the method is suitable for platforms such as high-speed railways and inter-city railways. According to the technology, two adjacent sliding doors are driven by two sets of driving units to realize the opening and closing of the platform door, the driving mechanism is complex, and the thickness of the platform door device is larger; meanwhile, the opening degree of the platform door is fixed, the door opening position is fixed, and the requirements of different vehicle types and different vehicle door positions are difficult to adapt.

Disclosure of Invention

For better promoting urban mass transit integration of urban mass transit, a multi-level track transit system based on four-network integration is constructed, the real targets of integrated operation, integrated management and integrated service are realized, and the technical problems of single applicability, poor compatibility and the like of a platform screen door system in multi-system railway vehicle interconnection and intercommunication under the multi-level track transit integration background of traditional high-speed railways, inter-city railways, urban suburban railways, urban track transit and the like are solved. The main expression is as follows:

(1) In the traditional platform screen door systems with different similar forms, such as split type and staggered type, taking the transverse opening of the platform screen unit door as the main stream, the door opening position corresponds to one type of vehicle system, the door opening position is fixed and single, and the up-and-down riding requirement of the arrival passengers of the multi-system railway vehicle is not met;

(2) In the related technical scheme design in the prior art under the multi-network fusion condition, in the combination design of a shielding door system, a plurality of fixed doors or stand columns inevitably exist for reinforcing the whole platform door system, and the up-and-down riding requirements of arriving passengers of any system of vehicles still cannot be met flexibly;

(3) In the prior platform door technology, the platform door has low market adaptability for the large-scale high-speed railway, inter-city railway and suburban railway in China, large reconstruction engineering and high investment cost.

In order to overcome the main technical problems and defects, the invention provides the ground intelligent lifting platform screen door suitable for the multi-system railway vehicle, which mainly meets the technical requirements of the design and transformation of the platform doors of large-scale high-speed railways, inter-city railways, urban suburban railways and urban rail transit in China, realizes the intelligent vertical lifting of the platform doors, and meets the intelligent counterpoint opening and closing requirements of the platform doors for the boarding and disembarking of stop passengers with different positions and size limiting requirements of the multi-system vehicle under the multi-network fusion background.

In order to achieve the technical purpose, the invention adopts the following technical scheme:

an intelligent lifting platform screen door suitable for multi-system railway vehicles mainly comprises a door leaf body 1, a corresponding rear cover plate 2, a screen door lifting system, a protection height compensation telescopic system, a screen door unit combined connection mechanism, a screen door protection system 39 and a linkage control unit; the shielding door lifting system comprises a driving lifting mechanism and a clamping connecting mechanism which are arranged on the door leaf body 1 in a bilateral symmetry mode; the protection height compensation telescopic system is a glass plate telescopic mechanism with steplessly adjustable platform protection height, and comprises a built-in micro motor 15, a primary intermediate connecting rod mechanism, a secondary intermediate connecting rod mechanism, a glass plate 21 and a glass bearing groove body 20; the shielding door protection system 39 is arranged at the edge position of the platform ZT and is used for protecting the shielding door of the platform from being stepped on by people when the shielding door is in a descending working state, and mainly comprises a protection plate 39A, a protection plate rotating connecting rod 40 and an electric control hydraulic push rod 42. The combined connection mechanism of the shielding door unit is a limit sliding and locking device which is arranged on the left side and the right side of the shielding door of a single group of platform and is suitable for lifting and descending during working, and mainly comprises a door leaf concave sliding body 13 arranged on the left side of a door leaf body 1 and a door leaf convex sliding body 14 correspondingly arranged on the right side in a matched mode, and the combined connection mechanism is used for realizing the stopping and the getting-on and getting-off of any position of the platform of railway vehicles in different modes.

Preferably, the linkage control unit comprises a multi-system vehicle-mounted device, a track-side integrated train control device, a vehicle-ground safety communication control system and a station platform screen door control system, wherein the station platform screen door control system is respectively connected with the track-side integrated train control device, the track-side integrated train control device is respectively connected with the vehicle-ground safety communication control system and a platform door linkage driving system, and the vehicle-ground safety communication control system is connected with the multi-system vehicle-mounted device and is used for realizing intelligent alignment opening and closing requirements of platform doors for up-and-down passengers arriving at a stop required by different positions and sizes of the multi-system vehicle under the multi-network fusion condition.

Preferably, the driving lifting mechanism of the shielding door lifting system is composed of a left support slide plate 3, a right support slide plate 4, a left drive motor 5, a right drive motor 6, a corresponding clamping connection mechanism and a V-belt transmission system which are symmetrically distributed from the left lower side and the right lower side upwards, wherein the left support slide plate 3 and the right support slide plate 4 are in an L-shaped plate structure, penetrate through the left side and the right side of the lower side surface of the door leaf body 1, and respectively slide up and down on the left support slide groove 1C1 and the right support slide groove 1C2 which are limited by the left support slide plate positioning pressing plate 22 and the right support slide plate positioning pressing plate 23 and are respectively arranged on the left side frame and the right side frame of the inner cavity 1A of the door leaf body 1; the bottoms of the left support slide plate 3 and the right support slide plate 4 are respectively fixedly connected to a platform foundation through anchor bolts; the bottoms of the left driving motor 5 and the right driving motor 6 are respectively and fixedly connected to the platform foundation through anchor bolts, corresponding output shafts respectively penetrate through lower plate bodies of the left supporting slide plate 3 and the right supporting slide plate 4, and are fixedly connected to driving wheels corresponding to the V-belt transmission system.

Preferably, the clamping connection mechanism is fixedly connected to a V belt in the V belt transmission system, and comprises an upper clamping pressing plate 29 and a lower fixed pressing plate 30 which are correspondingly arranged up and down, wherein the lower fixed pressing plate 30 is fixedly connected to the left and right frame side walls of the inner cavity 1A of the door leaf body 1 through bolts; the inner side surface of the upper clamping pressing plate 29 is provided with a plurality of pressing plate latches 29A, and the upper clamping pressing plate 29 and the lower clamping pressing plate 30 are fixedly clamped on the V-shaped belt through a middle pressing plate connecting bolt group 36, and the door leaf body 1 is driven by driving motors at the left side and the right side respectively to realize up-down lifting movement.

Preferably, the V-belt transmission system comprises a left driving wheel 7 and a right driving wheel 9 which are respectively connected by keys through a driving motor output shaft 5A corresponding to a right driving motor 6 by a left driving motor 5 at the bottom of the platform screen door, and a left driven wheel 8 and a right driven wheel 10 which are respectively connected with a right V-belt 12 through a left V-belt 11; the left driven wheel 8 and the right driven wheel 10 are respectively and rotatably connected to driven wheel rotating shafts 26 fixed on the upper parts of the left support slide plate 3 and the right support slide plate 4; the driving motors at the left side and the right side are linkage synchronous driving motors, the driving directions are reciprocal when in work, and the movement directions of the corresponding V-belt transmission systems are opposite, so that the door leaf body 1 can synchronously descend and lift.

Preferably, the protection height compensation expansion system is a protection glass plate expansion device arranged in a door leaf body inner cavity 1A of the door leaf body 1, the first-stage and second-stage middle connecting rod mechanisms are respectively a left first-stage connecting rod 17, a right first-stage connecting rod 16, a left second-stage connecting rod 18 and a right second-stage connecting rod 19 which are symmetrically connected between the built-in micro motor 15 and the glass bearing groove body 20, the glass bearing groove body 20 is of a grooved strip structure, a glass bearing groove body horizontal chute 20A for slidably mounting a glass bearing groove body horizontal rotation sliding shaft 38 is arranged at the lower part, and a glass plate bearing groove 20B fixedly connected with a glass plate 21 is arranged at the upper part; the left primary connecting rod 17 is connected to the output shaft of the built-in micro motor 15 through a key, the right primary connecting rod 16 is coaxially and rotatably connected to the outer end of the output shaft of the built-in micro motor 15, and the other ends of the left primary connecting rod 17 and the right primary connecting rod 16 are respectively and rotatably connected to one ends of the left secondary connecting rod 18 and the right secondary connecting rod 19; the middle parts of the left secondary connecting rod 18 and the right secondary connecting rod 19 are rotationally connected through a connecting rod connecting rotating shaft 19B; the lower part of the right secondary connecting rod 19 is fixedly connected with a connecting rod lifting sliding shaft 19A which is in sliding connection with a glass plate telescopic chute 1B vertically arranged in the middle part of the inner cavity 1A of the door leaf body; the other ends of the left secondary connecting rod 18 and the right secondary connecting rod 19 are respectively and rotatably connected to the glass-bearing groove body horizontal rotating sliding shaft 38 which is slidably arranged in the glass-bearing groove body 20; the protection height compensation telescopic system is used for adjusting and compensating the condition that the protection height of the door leaf body 1 of the shielding doors of different platforms is insufficient under the driving action of the driving device.

Preferably, the combined connection mechanism of the shielding door unit is a sliding locking system correspondingly arranged on two sides of a single platform shielding door, the door leaf concave sliding body 13 is of a U-shaped groove structure with a door leaf concave sliding body groove 13A formed in the inner part, the door leaf unit is fixedly connected to the door leaf body 1 through a groove bottom bolt, and a roller left fixing plate 33B and a roller right fixing plate 33A for rotatably connecting a door leaf lifting roller 32 are respectively fixedly arranged on the left side and the right side of the bottom of the door leaf concave sliding body groove 13A; an upper fixed electric control lock 34 and a lower fixed electric control lock 35 are respectively arranged at the upper and lower near edges of the door leaf concave sliding body groove 13A; the door lifting rollers 32 are closely arranged in the vertical direction in the door concave sliding body groove 13A.

Preferably, the door leaf convex sliding body 14 is an inner nested supporting structure with a convex sliding body supporting table 14A opened at the middle part corresponding to the door leaf concave sliding body 13, and the door leaf convex sliding body 14 is fixedly connected to the door leaf body 1 through a convex sliding body mounting hole 14D bolt which is opened on the convex sliding body supporting table 14A in a penetrating way; a supporting table rolling groove 14B for limiting and rolling the door leaf lifting roller 32 is longitudinally formed in the middle of the convex sliding body supporting table 14A; the supporting platform rolling groove 14B is provided with electric control lock locking holes 14C respectively up and down, which are used for connecting and fixing a plurality of groups of adjacent intelligent lifting platform screen doors in the descending and lifting operation, and the electric control lock locking holes 14C are used for connecting and fixing the upper fixed electric control lock 34 and the lower fixed electric control lock 35.

Preferably, the door leaf concave sliding bodies 13 and the door leaf convex sliding bodies 14 on the left side and the right side of the door leaf body 1 are respectively matched and connected with the corresponding door leaf convex sliding bodies and the door leaf concave sliding bodies of the adjacent platform shielding doors in a vertical rolling way; when the intelligent lifting platform screen door is in a normal protection working position, namely a plurality of groups of adjacent platform screen doors are in a lifting working state, an upper fixed electric control lock bolt 34A of an upper fixed electric control lock 34 arranged in the door leaf concave sliding body 13 is positioned and locked with a door leaf convex sliding body upper side electric control lock position hole 14C of the adjacent platform screen door, and a lower fixed electric control lock bolt 35A of a lower fixed electric control lock 35 arranged in the door leaf concave sliding body 13 is positioned and locked with a door leaf convex sliding body lower side electric control lock position hole of the adjacent platform screen door; when the intelligent lifting type platform screen door is in a riding working position, namely a single group of platform screen doors are in a descending working state, an upper fixed electric control lock bolt 34A of an upper fixed electric control lock 34 arranged in the door leaf concave sliding body 13 is positioned and locked with a door leaf convex sliding body lower side electric control lock position hole of the platform screen door which is adjacent to the platform screen door in a lifting working state; when the intelligent lifting platform screen door is in a riding working position, namely a plurality of groups of adjacent platform screen doors are in a descending working state, upper fixed electric control lock bolts 34A of upper fixed electric control locks 34 arranged in door leaf concave sliding bodies 13 corresponding to the adjacent platform screen doors in the descending position are positioned and locked with door leaf convex sliding body upper side electric control lock position holes 14C of the adjacent platform screen doors, and lower fixed electric control lock bolts 35A of lower fixed electric control locks 35 arranged in the door leaf concave sliding bodies 13 are positioned and locked with door leaf convex sliding body lower side electric control lock position holes of the adjacent platform screen doors.

Preferably, the protection plate 39A of the shielding door protection system 39 has a rectangular plate-like structure, and has a length range corresponding to the width of a single set of platform shielding doors, and a width range covering the upper part of the platform shielding doors in the descending position; the left and right sides of the lower part of the protection board 39A are respectively and rotatably connected with one end of a protection board rotating connecting rod 40 through a protection board left connecting lug plate 39B and a protection board left connecting lug plate 39D, and the other end of the protection board rotating connecting rod 40 is rotatably connected with a connecting rod fixing base 41 fixed on a platform; the middle of the lower side of the protection plate 39A is close to the side edge of the platform, and is rotationally connected with an electric control hydraulic push rod 42 vertically fixed on the platform wall through a provided protection plate middle connecting lug plate 39C, and the protection plate 39A is driven to work in the state that the platform screen door is in a normal protection working position and a riding working position through the up-down movement of the electric control hydraulic push rod 42.

Preferably, the middle connecting rod structure in the protective glass plate expansion device of the protective height compensation expansion system can be additionally arranged into a multi-stage cross connecting rod according to the specific lifting height, speed and stability conditions of the glass plate compensation.

Preferably, the upper ends of the left support slide plate 3 and the right support slide plate 4 of the shielding door lifting system are provided with vibration damping rubber bodies 31, and the vibration damping rubber bodies are integrally fixed with the support slide plates through rubber body mounting holes 31A so as to reduce contact collision between the door leaf body 1 and the upper ends of the left support slide plate 3 and the right support slide plate 4 when the door leaf body 1 descends.

Preferably, the back cover plate 2 is integrally in a plate structure, edges of the back cover plate 2 are fixedly connected to the frame body of the door leaf body 1 through screws, wherein the upper end of the back cover plate 2 is provided with an upper cover plate fixing plate 2A provided with a cover plate glass plate opening 2B, and the cover plate glass plate opening 2B is correspondingly arranged with a door leaf body glass plate opening 1E provided on the upper part of the door leaf body 1, so that the glass plate 21 can be lifted and retracted.

The beneficial effects of the invention are as follows: the ground intelligent lifting platform screen door suitable for the multi-system railway vehicle mainly comprises a door leaf body, a corresponding rear cover plate, a screen door lifting system, a protection height compensation telescopic system, a screen door unit combined connection mechanism, a screen door protection system and a linkage control unit. The shielding door lifting system comprises a driving lifting mechanism and a clamping connecting mechanism which are symmetrically arranged on the left and right sides of the door leaf body; the protection height compensation telescopic system is a glass plate telescopic mechanism with steplessly adjustable platform protection height, the shielding door protection system is installed and arranged at the edge of a platform for protecting the shielding door of the platform from being trampled and protected above the shielding door when the shielding door of the platform is in a descending working state, and the shielding door unit combined connection mechanism is a limit sliding and locking device which is arranged on the left side and the right side of the shielding door of the single-group platform and is suitable for lifting and descending working and is used for realizing the stopping and boarding at any position of the platform of railway vehicles of different systems. The device completely avoids the problem that the upper and lower riding door opening positions of the traditional platform screen door systems with different similar forms, such as split type and staggered type, taking the transverse opening of the platform screen unit door as the main stream are fixed and single, proposes a new scheme of the design of the overground lifting platform screen door, cancels the structural design of the whole platform door, such as the whole platform fixed door or the upright post, and the like, flexibly meets the up and down riding requirements of arriving passengers of any system vehicle, and simultaneously meets the technical requirements of the design and transformation of the platform door of domestic large-scale high-speed railways, inter-city railways, suburban railways and urban rail transit, and has high adaptability to transformation conditions, smaller transformation engineering and low investment cost; the intelligent alignment opening and closing requirements of platform doors for boarding and disembarking stop passengers at stations of different positions and size limiting requirements of multi-system vehicles under the multi-network fusion background are effectively met.

Drawings

FIG. 1 is a partially assembled three-dimensional block diagram of a lifting operating condition of an above-ground intelligent lift platform screen door of the present invention adapted for use with a multi-system railway vehicle;

FIG. 2 is an enlarged view of part of the above-ground intelligent lift platform screen door of FIG. 1 at A, B, C, D, E of the present invention adapted for use in a multi-system railway vehicle;

FIG. 3 is another view of a partially assembled three-dimensional structure of a lifting operational status of an above-ground intelligent lift platform screen door of the present invention adapted for use with a multi-format railway vehicle;

FIG. 4 is a front and side elevation view of a partially assembled overhead intelligent lift platform screen door of the present invention adapted for use with a multi-format railway vehicle;

FIG. 5 is an enlarged view of part of the ground intelligent lift platform screen door of FIG. 3 at F and G and of part of the ground intelligent lift platform screen door of FIG. 4 at H and I, respectively, for a multi-system railway vehicle in accordance with the present invention;

FIG. 6 is a partially assembled perspective view of the lowered operational state of an above-ground intelligent lift platform screen door of the present invention adapted for use with a multi-format railway vehicle;

FIG. 7 is a front view of a lowered operative portion of a ground intelligent lift platform screen door of the present invention adapted for use with a multi-format railway vehicle;

FIG. 8 is a perspective view showing the structure of a door leaf portion of an above-ground intelligent lift platform screen door suitable for use in a multi-system railway vehicle in accordance with the present invention;

FIG. 9 is a block diagram illustrating the platform layout of a unit screen door of an above-ground intelligent lift platform screen door for a multi-system railway vehicle in a lifting mode of operation according to the present invention;

FIG. 10 is another view of the platform layout structure of the unit screen door of the above-ground intelligent lift platform screen door for a multi-system railway vehicle in accordance with the present invention in a lifting mode;

FIG. 11 is a block diagram showing the construction of a platform screen door of a floor intelligent lift platform screen door for a multi-system railway vehicle according to the present invention in a lowered operating state;

FIG. 12 is a diagram of the structure and layout of a platform protection system for an above-ground intelligent lift platform screen door of a multi-system railway vehicle in accordance with the present invention;

FIG. 13 is a schematic view of a system layout scheme of an above-ground intelligent lift platform screen door of the present invention adapted for use with a multi-system railway vehicle;

FIG. 14 is a partial single row arrangement of a half-height platform door system of a domestic conventional subway vehicle;

FIG. 15 is a sectional view of a half-height platform door system of a domestic conventional subway vehicle;

Fig. 16 is a cross-sectional view of a general intermediate station of a domestic conventional high-speed railway, an inter-city railway and a suburban railway and a cross-sectional view of an island-type intermediate station.

In the figure: a door leaf body 1; a door leaf body inner cavity 1A; a glass-plate expansion chute 1B; a left support chute 1C1; a right support chute 1C2; left support slide slot 1D1; a right support slide slot 1D2; door leaf body glass plate opening 1E; a rear cover plate connecting hole 1F; a convex sliding body fixing hole 1G; a rear cover plate 2; a cover plate upper fixing plate 2A; a cover glass plate opening 2B; a left support slide plate 3; a right support slide plate 4; a left drive motor 5; a right drive motor 6; a drive motor output shaft 5A; a left driving wheel 7; a left driven wheel 8; a right driving wheel 9; a right driven wheel 10; a left V-belt 11; a right V-belt 12; a door leaf concave sliding body 13; a door leaf concave slider groove 13A; a door leaf convex sliding body 14; a convex slider support table 14A; a support table rolling groove 14B; an electric control lock position hole 14C; a convex slider mounting hole 14D; a built-in micro motor 15; a right primary link 16; a left primary link 17; a left secondary link 18; a right secondary link 19; the connecting rod lifts the sliding shaft 19A; the connecting rod is connected with the rotating shaft 19B; a glass housing groove 20; a glass-housing channel horizontal chute 20A; a glass plate accommodating groove 20B; a glass plate 21; a left support slide positioning platen 22; a right support slide positioning platen 23; a drive wheel connecting key 24; motor anchor bolts 25; driven wheel spindle 26; a driven wheel shaft stop ring 27; driven wheel cotter pin 28; an upper clamping platen 29; the platen latch 29A; a lower fixed platen 30; a vibration damping rubber body 31; rubber body mounting holes 31A; door leaf lifting roller 32; a roller right fixing plate 33A; a roller left fixing plate 33B; an upper fixed electric control lock 34; an upper fixed electric control lock bolt 34A; a lower fixed electric control lock 35; a lower fixed electric control lock bolt 35A; a platen connecting bolt group 36; a link cotter pin 37; a glass-receiving channel horizontally rotating slide shaft 38; a screen door protection system 39; a protective plate 39A; the left connecting ear plate 39B is protected; the middle part of the protection plate is connected with an ear plate 39C; the left connecting ear plate 39D is protected; a protection plate rotation link 40; a link fixing base 41; an electrically controlled hydraulic pushrod 42; a station ZT; a linkage control unit (not shown).

Description of the embodiments

The invention is further described below with reference to the accompanying drawings:

as shown in fig. 14 and 15, the local single-row arrangement of the half-height platform door system of the domestic traditional metro vehicle is in a transverse split mode, the door opening position is fixed, the door opening size is unique, and the system is only suitable for the alignment opening and closing requirements of platform doors of arriving stop passengers of specific metro vehicles, and does not meet the compatibility requirements of platform screen door systems in interconnection and intercommunication of multi-system railway vehicles in the multi-level rail transit fusion background.

As shown in fig. 16, the civil engineering design has the requirements of lifting type platform layout in the cross section of a general intermediate station of a domestic traditional high-speed railway, an inter-city railway and a suburban railway and the cross section of an island type intermediate station, the engineering modification scale is small, and the shielding door protection height is additionally provided with an intelligent selectable protection height compensation telescopic system on the basis of the basic height of a door leaf body, namely a glass plate telescopic mechanism with stepless adjustable platform protection height, so that the condition of insufficient protection height of a descending type shielding door is satisfied.

As shown in fig. 1 to 5, an above-ground intelligent lifting platform screen door suitable for multi-system railway vehicles mainly comprises a door leaf body 1, a corresponding rear cover plate 2, a screen door lifting system, a protection height compensation telescopic system, a screen door unit combined connection mechanism, a screen door protection system 39 and a linkage control unit; the shielding door lifting system comprises a driving lifting mechanism and a clamping connecting mechanism which are arranged on the door leaf body 1 in a bilateral symmetry mode; the protection height compensation telescopic system is a glass plate telescopic mechanism with steplessly adjustable platform protection height, and comprises a built-in micro motor 15, a primary intermediate connecting rod mechanism, a secondary intermediate connecting rod mechanism, a glass plate 21 and a glass bearing groove body 20; the shielding door protection system 39 is arranged at the edge position of the platform ZT and is used for protecting the shielding door of the platform from being stepped on by people when the shielding door is in a descending working state, and mainly comprises a protection plate 39A, a protection plate rotating connecting rod 40 and an electric control hydraulic push rod 42. The combined connection mechanism of the shielding door unit is a limit sliding and locking device which is arranged on the left side and the right side of the shielding door of a single group of platform and is suitable for lifting and descending during working, and mainly comprises a door leaf concave sliding body 13 arranged on the left side of a door leaf body 1 and a door leaf convex sliding body 14 correspondingly arranged on the right side in a matched mode, and the combined connection mechanism is used for realizing the stopping and the getting-on and getting-off of any position of the platform of railway vehicles in different modes.

The linkage control unit comprises multi-system vehicle-mounted equipment, rail-side integrated train control equipment, a vehicle-ground safety communication control system and a station platform screen door control system, wherein the station platform screen door control system is connected with the rail-side integrated train control equipment respectively, the rail-side integrated train control equipment is connected with the vehicle-ground safety communication control system and a station door linkage driving system respectively, and the vehicle-ground safety communication control system is connected with the multi-system vehicle-mounted equipment and is used for realizing intelligent alignment opening and closing requirements of station doors for up-and-down passengers of a station parking under different positions and size limiting requirements of the multi-system vehicle under a multi-network fusion condition.

As shown in fig. 1 and 2, the driving lifting mechanism of the lifting system of the shielding door is composed of a left support slide plate 3, a right support slide plate 4, a left drive motor 5, a right drive motor 6, a corresponding clamping connection mechanism and a V-belt transmission system which are symmetrically distributed from the left lower side and the right lower side, wherein the left support slide plate 3 and the right support slide plate 4 are L-shaped plate-shaped structural members, penetrate through the left side and the right side of the lower side surface of the door leaf body 1, and respectively slide up and down on the left side frame and the right side frame of the door leaf body cavity 1A of the door leaf body 1, and a left support slide plate positioning pressing plate 22 and a right support slide plate positioning pressing plate 23, which define a left support slide groove 1C1 and a right support slide groove 1C 2; the bottoms of the left support slide plate 3 and the right support slide plate 4 are respectively fixedly connected to a platform foundation through anchor bolts; the bottoms of the left driving motor 5 and the right driving motor 6 are respectively and fixedly connected to the platform foundation through anchor bolts, corresponding output shafts respectively penetrate through lower plate bodies of the left supporting slide plate 3 and the right supporting slide plate 4, and are fixedly connected to driving wheels corresponding to the V-belt transmission system.

As shown in fig. 2 and 5, the clamping connection mechanism is fixedly connected to a V belt in the V belt transmission system, and comprises an upper clamping pressing plate 29 and a lower fixed pressing plate 30 which are correspondingly arranged up and down, wherein the lower fixed pressing plate 30 is fixedly connected to the left and right frame side walls of the inner cavity 1A of the door leaf body 1 through bolts; the inner side surface of the upper clamping pressing plate 29 is provided with a plurality of pressing plate latches 29A, and the upper clamping pressing plate 29 and the lower clamping pressing plate 30 are fixedly clamped on the V-shaped belt through a middle pressing plate connecting bolt group 36, and the door leaf body 1 is driven by driving motors at the left side and the right side respectively to realize up-down lifting movement.

As shown in fig. 2, 3 and 4, the V-belt transmission system comprises a left driving wheel 7 and a right driving wheel 9, which are respectively connected by keys with a driving motor output shaft 5A corresponding to the left driving motor 5 and the right driving motor 6 at the bottom of the platform screen door, and a left driven wheel 8 and a right driven wheel 10, which are respectively connected with a right V-belt 12 through a left V-belt 11; the left driven wheel 8 and the right driven wheel 10 are respectively and rotatably connected to driven wheel rotating shafts 26 fixed on the upper parts of the left support slide plate 3 and the right support slide plate 4; the driving motors at the left side and the right side are linkage synchronous driving motors, the driving directions are reciprocal when in work, and the movement directions of the corresponding V-belt transmission systems are opposite, so that the door leaf body 1 can synchronously descend and lift.

As shown in fig. 8, the protection height compensation expansion system is a protection glass plate expansion device built in a door leaf body inner cavity 1A of the door leaf body 1, the first-stage and second-stage intermediate link mechanisms are respectively a left-stage link 17, a right-stage link 16, a left-stage link 18 and a right-stage link 19 which are symmetrically connected between the built-in micro motor 15 and the glass-supporting groove body 20, the glass-supporting groove body 20 is in a grooved strip structure, a glass-supporting groove body horizontal chute 20A for slidably mounting a glass-supporting groove body horizontal rotation sliding shaft 38 is formed at the lower part, and a glass plate supporting groove 20B fixedly connected with a glass plate 21 is formed at the upper part; the left primary connecting rod 17 is connected to the output shaft of the built-in micro motor 15 through a key, the right primary connecting rod 16 is coaxially and rotatably connected to the outer end of the output shaft of the built-in micro motor 15, and the other ends of the left primary connecting rod 17 and the right primary connecting rod 16 are respectively and rotatably connected to one ends of the left secondary connecting rod 18 and the right secondary connecting rod 19; the middle parts of the left secondary connecting rod 18 and the right secondary connecting rod 19 are rotationally connected through a connecting rod connecting rotating shaft 19B; the lower part of the right secondary connecting rod 19 is fixedly connected with a connecting rod lifting sliding shaft 19A which is in sliding connection with a glass plate telescopic chute 1B vertically arranged in the middle part of the inner cavity 1A of the door leaf body; the other ends of the left secondary connecting rod 18 and the right secondary connecting rod 19 are respectively and rotatably connected to the glass-bearing groove body horizontal rotating sliding shaft 38 which is slidably arranged in the glass-bearing groove body 20; the protection height compensation telescopic system is used for adjusting and compensating the condition that the protection height of the door leaf body 1 of the shielding doors of different platforms is insufficient under the driving action of the driving device.

As shown in fig. 4 and 5, the combined connection mechanism of the shielding door unit is a sliding locking system correspondingly arranged on two sides of a single platform shielding door, the door leaf concave sliding body 13 is of a U-shaped groove structure with a door leaf concave sliding body groove 13A formed in the inside, and is fixedly connected to the door leaf body 1 through a groove bottom bolt, and a roller left fixing plate 33B and a roller right fixing plate 33A for rotatably connecting a door leaf lifting roller 32 are respectively and fixedly arranged on the left side and the right side of the bottom of the door leaf concave sliding body groove 13A; an upper fixed electric control lock 34 and a lower fixed electric control lock 35 are respectively arranged at the upper and lower near edges of the door leaf concave sliding body groove 13A; the door lifting rollers 32 are closely arranged in the vertical direction in the door concave sliding body groove 13A.

The door leaf convex sliding body 14 is an inner nested supporting structure, a convex sliding body supporting table 14A is arranged in the middle of the inner nested supporting structure corresponding to the door leaf concave sliding body 13, and the door leaf convex sliding body 14 is fixedly connected to the door leaf body 1 through a convex sliding body mounting hole 14D bolt which is arranged on the convex sliding body supporting table 14A in a penetrating way; a supporting table rolling groove 14B for limiting and rolling the door leaf lifting roller 32 is longitudinally formed in the middle of the convex sliding body supporting table 14A; the supporting platform rolling groove 14B is provided with electric control lock locking holes 14C respectively up and down, which are used for connecting and fixing a plurality of groups of adjacent intelligent lifting platform screen doors in the descending and lifting operation, and the electric control lock locking holes 14C are used for connecting and fixing the upper fixed electric control lock 34 and the lower fixed electric control lock 35.

The door leaf concave sliding bodies 13 and the door leaf convex sliding bodies 14 on the left side and the right side of the door leaf body 1 are respectively matched and connected with the corresponding door leaf convex sliding bodies and the door leaf concave sliding bodies of the shielding doors of adjacent platforms in a vertical rolling way; when the intelligent lifting platform screen door is in a normal protection working position, namely a plurality of groups of adjacent platform screen doors are in a lifting working state, an upper fixed electric control lock bolt 34A of an upper fixed electric control lock 34 arranged in the door leaf concave sliding body 13 is positioned and locked with a door leaf convex sliding body upper side electric control lock position hole 14C of the adjacent platform screen door, and a lower fixed electric control lock bolt 35A of a lower fixed electric control lock 35 arranged in the door leaf concave sliding body 13 is positioned and locked with a door leaf convex sliding body lower side electric control lock position hole of the adjacent platform screen door; when the intelligent lifting type platform screen door is in a riding working position, namely a single group of platform screen doors are in a descending working state, an upper fixed electric control lock bolt 34A of an upper fixed electric control lock 34 arranged in the door leaf concave sliding body 13 is positioned and locked with a door leaf convex sliding body lower side electric control lock position hole of the platform screen door which is adjacent to the platform screen door in a lifting working state; when the intelligent lifting platform screen door is in a riding working position, namely a plurality of groups of adjacent platform screen doors are in a descending working state, upper fixed electric control lock bolts 34A of upper fixed electric control locks 34 arranged in door leaf concave sliding bodies 13 corresponding to the adjacent platform screen doors in the descending position are positioned and locked with door leaf convex sliding body upper side electric control lock position holes 14C of the adjacent platform screen doors, and lower fixed electric control lock bolts 35A of lower fixed electric control locks 35 arranged in the door leaf concave sliding bodies 13 are positioned and locked with door leaf convex sliding body lower side electric control lock position holes of the adjacent platform screen doors.

As shown in fig. 9 to 12, the protection plate 39A of the shielding door protection system 39 has a rectangular plate structure, and has a length range corresponding to the width of a single set of platform shielding doors, and a width range covering the upper part of the platform shielding door in the descending position; the left and right sides of the lower part of the protection board 39A are respectively and rotatably connected with one end of a protection board rotating connecting rod 40 through a protection board left connecting lug plate 39B and a protection board left connecting lug plate 39D, and the other end of the protection board rotating connecting rod 40 is rotatably connected with a connecting rod fixing base 41 fixed on a platform; the middle of the lower side of the protection plate 39A is close to the side edge of the platform, and is rotationally connected with an electric control hydraulic push rod 42 vertically fixed on the platform wall through a provided protection plate middle connecting lug plate 39C, and the protection plate 39A is driven to work in the state that the platform screen door is in a normal protection working position and a riding working position through the up-down movement of the electric control hydraulic push rod 42. The middle connecting rod structure in the protective glass plate expansion device of the protective height compensation expansion system can be additionally arranged into a multi-stage cross connecting rod according to the conditions of the specific glass plate compensation lifting height, speed and stability.

As shown in fig. 9, the back cover plate 2 is integrally in a plate structure, and edges of the back cover plate 2 are fixedly connected to the frame body of the door leaf body 1 through screws, wherein the upper end of the back cover plate 2 is provided with an upper cover plate fixing plate 2A provided with a cover plate glass plate opening 2B, and the cover plate glass plate opening 2B is correspondingly arranged with a door leaf body glass plate opening 1E provided at the upper part of the door leaf body 1, so that the glass plate 21 can be lifted and retracted.

The left support slide plate 3 and the right support slide plate 4 of the shielding door lifting system are provided with vibration reduction rubber bodies 31, and the vibration reduction rubber bodies are integrally fixed with the support slide plates through rubber body mounting holes 31A so as to reduce contact collision between the door leaf body 1 and the upper end parts of the left support slide plate 3 and the right support slide plate 4 when the door leaf body 1 descends.

The ground intelligent lifting platform screen door suitable for the multi-system railway vehicle is arranged on the platform edge, and has two working states: 1) The normalized working position is in a lifting state, namely, a plurality of groups of adjacent platform shielding doors are mutually locked left and right, and meanwhile, the protective glass plate is in an extending state; 2) The riding working state, namely, 1-3 groups of platform doors corresponding to the opening of the platform parking vehicle are in the descending working state for passengers to get on and get off.

Working mode: when passengers at any position of a stop platform of any standard vehicle get on or off, under the linkage control of vehicle-mounted equipment, track-side integrated train control equipment, a vehicle-ground safety communication control system, a station platform screen door control system and the like, under the linkage control of a driving and transmission mechanism, 1-3 groups of platform screen doors corresponding to the stop vehicle move downwards along sliding bodies at two sides of the outer end of the platform door in a lifting working state, meanwhile, a platform door protection height compensation telescopic system is started, a glass plate telescopic mechanism which is controlled to be stepless regulation is controlled to retract into a door leaf body, when the door leaf body descends to a position slightly lower than the platform plane height at the upper end part, the screen door lifting system stops working, the screen door protection system is started, an electric control hydraulic push rod drives a protection plate to gradually move to a protection working position at the upper end part of the platform screen door, the upper surface of the protection plate is flush with the platform plane, and the over-stepping protection of the platform screen door is ensured when the vehicle is in the working position. After the passengers get on and off, the linkage control system controls the shielding door protection system to start to return to the lifting state, and then the shielding door lifting system and the protection height compensation telescopic system are started respectively or simultaneously, and gradually reset to the normalized working position corresponding to the lifting state.

It should be noted that, in this document, references to "left", "right", "front", "rear", "inner", "outer", "upper", "lower", etc. indicate that the directions or the positional relationships are based on the positional relationships shown in the drawings, which are merely for convenience in describing the present technical solution and simplifying the description, and do not indicate or imply that the devices or elements to be referred to must have a specific direction, be configured or operated in the specific direction, and thus should not be construed as limiting the technical solution, and the connection relationships may refer to direct connection relationships or indirect connection relationships.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. The utility model provides an above-ground intelligent lift platform screen door suitable for multisystem railway vehicle, mainly includes door leaf body (1) and corresponds back shroud (2), its characterized in that: the shielding door unit comprises a shielding door body (1), a shielding door unit combination connecting mechanism, a shielding door protection system (39) and a linkage control unit, wherein the shielding door lifting system is fixedly arranged on a platform rail side installation basis and comprises driving lifting mechanisms symmetrically arranged on the left and right sides of the door leaf body (1) and clamping connecting mechanisms correspondingly arranged above the driving lifting mechanisms; the lower side of the door leaf body (1) is vertically and relatively connected with the shielding door lifting system in a rolling manner up and down, and the shielding door lifting system is used for controlling and driving the intelligent lifting platform shielding door to lift; the protection height compensation telescopic system is fixedly arranged in the cavity of the door leaf body (1) and is a glass plate telescopic mechanism with steplessly adjustable protection height for a platform; the shielding door protection system (39) is arranged at the edge position of the platform (ZT) and is used for protecting the upper part of the door leaf body (1) from trampling when the intelligent lifting platform shielding door is in a descending working state; the combined connection mechanism of the shielding door unit is a limit sliding and locking device which is matched with the left side and the right side of the shielding door of a single group of platform and is suitable for lifting and descending operation, and comprises a door leaf concave sliding body (13) arranged on the left side of a door leaf body (1) and a door leaf convex sliding body (14) correspondingly matched with the right side of the door leaf body; during construction and installation, a plurality of groups of adjacent intelligent lifting platform shielding doors which are vertically and slidably connected are arranged on the edge of the platform in a row, and the intelligent lifting platform shielding doors at any positions can be selectively opened in the working process and are used for meeting the requirements of stopping and getting on and off at any positions of railway vehicle platforms of different systems;

The door leaf concave sliding bodies (13) and the door leaf convex sliding bodies (14) on the left side and the right side of the door leaf body (1) are respectively matched and connected with the corresponding door leaf convex sliding bodies and the door leaf concave sliding bodies of the shielding doors of the adjacent platforms in a vertical rolling manner; when the intelligent lifting platform shielding door is in a normal protection working position, namely a plurality of groups of adjacent platform shielding doors are in a lifting working state, an upper fixed electric control lock bolt (34A) of an upper fixed electric control lock (34) arranged in a door leaf concave sliding body (13) is positioned and locked with a door leaf convex sliding body upper side electric control lock position hole (14C) of the adjacent platform shielding door, and a lower fixed electric control lock bolt (35A) of a lower fixed electric control lock (35) arranged in the door leaf concave sliding body (13) is positioned and locked with a door leaf convex sliding body lower side electric control lock position hole of the adjacent platform shielding door; when the intelligent lifting type platform screen door is in a riding working position, namely a single group of platform screen doors are in a descending working state, an upper fixed electric control lock bolt (34A) of an upper fixed electric control lock (34) arranged in the door leaf concave sliding body (13) is positioned and locked with a locking hole of the electric control lock on the lower side of the door leaf convex sliding body of the platform screen door which is adjacent to the platform screen door in the lifting working state; when the intelligent lifting platform shielding door is in a riding working position, namely a plurality of groups of adjacent platform shielding doors are in a descending working state, an upper fixed electric control lock bolt (34A) of an upper fixed electric control lock (34) arranged in a door leaf concave sliding body (13) corresponding to the descending platform shielding door is positioned and locked with a door leaf convex sliding body upper side electric control lock locking position hole (14C) of the adjacent platform shielding door, and a lower fixed electric control lock bolt (35A) of a lower fixed electric control lock (35) arranged in the door leaf concave sliding body (13) is positioned and locked with a door leaf convex sliding body lower side electric control lock position hole of the adjacent platform shielding door.

2. An above-ground intelligent lift platform screen door for a multi-system railway vehicle as claimed in claim 1, wherein: the linkage control unit comprises multi-system vehicle-mounted equipment, rail-side integrated train control equipment, a vehicle-ground safety communication control system and a station platform screen door control system, wherein the station platform screen door control system is connected with the rail-side integrated train control equipment respectively, the rail-side integrated train control equipment is connected with the vehicle-ground safety communication control system and a platform door linkage driving system respectively, and the vehicle-ground safety communication control system is connected with the multi-system vehicle-mounted equipment and is used for realizing intelligent alignment opening and closing requirements of platform doors for up-and-down passengers of a station parking of different positions and sizes of the multi-system vehicle under the multi-network fusion condition.

3. An above-ground intelligent lift platform screen door for a multi-system railway vehicle as claimed in claim 1, wherein: the driving lifting mechanism of the shielding door lifting system comprises a left supporting slide plate (3), a right supporting slide plate (4), a left driving motor (5), a right driving motor (6) and a corresponding clamping connection mechanism and a V belt transmission system which are symmetrically distributed from the left lower side and the right lower side upwards, wherein the left supporting slide plate (3) and the right supporting slide plate (4) are L-shaped plate-shaped structural members, penetrate through the left side and the right side of the lower side of the door leaf body (1) and respectively slide up and down on the left side frame and the right side frame of a door leaf body inner cavity (1A) of the door leaf body (1) and a left supporting slide positioning pressing plate (22) and a right supporting slide positioning pressing plate (23) which are limited by the left supporting slide groove (1C 1) and the right supporting slide groove (1C 2); the bottoms of the left support slide plate (3) and the right support slide plate (4) are fixedly connected to a platform foundation through anchor bolts respectively; the bottoms of the left driving motor (5) and the right driving motor (6) are fixedly connected to the platform foundation through anchor bolts respectively, and corresponding output shafts penetrate through lower plate bodies of the left supporting sliding plate (3) and the right supporting sliding plate (4) respectively and are fixedly connected to driving wheels corresponding to the V-belt transmission system.

4. A ground intelligent lift platform screen door for a multi-system railway vehicle according to claim 1 or 3, characterized in that: the clamping connection mechanism is fixedly connected to a V belt in the V belt transmission system and comprises an upper clamping pressing plate (29) and a lower fixed pressing plate (30) which are arranged up and down correspondingly, and the lower fixed pressing plate (30) is fixedly connected to the left and right side frame side walls of a door leaf inner cavity (1A) of the door leaf body (1) through bolts; the inner side surface of the upper clamping pressing plate (29) is provided with a plurality of pressing plate clamping teeth (29A), the upper clamping pressing plate and the lower fixing pressing plate (30) are fixedly clamped on the V-shaped belt through a middle pressing plate connecting bolt group (36), and the door leaf body (1) is driven by driving motors at the left side and the right side respectively to move up and down.

5. A ground intelligent lift platform screen door for a multi-system railway vehicle as claimed in claim 3, wherein: the V-belt transmission system comprises a left driving wheel (7) and a right driving wheel (9) which are respectively connected by keys through a driving motor output shaft (5A) corresponding to a left driving motor (5) and a right driving motor (6) at the bottom of the platform screen door, and a left driven wheel (8) and a right driven wheel (10) which are respectively connected with a right V-belt (12) through a left V-belt (11); the left driven wheel (8) and the right driven wheel (10) are respectively and rotatably connected to a driven wheel rotating shaft (26) fixed on the upper parts of the left support sliding plate (3) and the right support sliding plate (4); the driving motors at the left side and the right side are linkage synchronous driving motors, the driving directions are reciprocal when in operation, and the movement directions of the corresponding V-belt transmission systems are opposite, so that the door leaf body (1) can synchronously descend and lift.

6. An above-ground intelligent lift platform screen door for a multi-system railway vehicle as claimed in claim 1, wherein: the protection height compensation telescopic system is a protection glass plate telescopic device which is arranged in a door leaf body inner cavity (1A) of the door leaf body (1), and comprises a built-in miniature motor (15), a first-stage intermediate connecting rod mechanism, a second-stage intermediate connecting rod mechanism, a glass plate (21) and a glass bearing groove body (20), wherein the first-stage intermediate connecting rod mechanism and the second-stage intermediate connecting rod mechanism are respectively symmetrically connected with a left-stage connecting rod (17), a right-stage connecting rod (16), a left-stage second-stage connecting rod (18) and a right-stage connecting rod (19) in the middle of the built-in miniature motor (15) and the glass bearing groove body (20), the glass bearing groove body (20) is of a grooved strip structure, the lower part of the glass bearing groove body is provided with a glass bearing groove body horizontal sliding groove (20A) for sliding and mounting the glass plate (21), and the upper part of the glass plate bearing groove (20B) is fixedly connected with the glass plate (21); the left primary connecting rod (17) is connected to an output shaft of the built-in miniature motor (15) through a key, the right primary connecting rod (16) is coaxially and rotatably connected to the outer end of the output shaft of the built-in miniature motor (15), and the other ends of the left primary connecting rod (17) and the right primary connecting rod (16) are respectively and rotatably connected to one ends of the left secondary connecting rod (18) and the right secondary connecting rod (19); the middle parts of the left secondary connecting rod (18) and the right secondary connecting rod (19) are rotationally connected through a connecting rod connecting rotating shaft (19B); the lower part of the right secondary connecting rod (19) is fixedly connected with a connecting rod lifting sliding shaft (19A), and the connecting rod lifting sliding shaft is in sliding connection with a glass plate telescopic chute (1B) vertically arranged in the middle of the inner cavity (1A) of the door leaf body; the other ends of the left secondary connecting rod (18) and the right secondary connecting rod (19) are respectively and rotatably connected to the glass bearing groove body (20) and the glass bearing groove body horizontally rotating sliding shaft (38) which is slidably arranged; the protection height compensation telescopic system is used for adjusting and compensating the condition that the protection height of the door leaf body (1) of different platform shielding doors is insufficient under the driving action of the driving device.

7. An above-ground intelligent lift platform screen door for a multi-system railway vehicle as claimed in claim 1, wherein: the combined connection mechanism of the shielding door unit is a sliding locking system correspondingly arranged on two sides of a single platform shielding door, the door leaf concave sliding body (13) is of a U-shaped groove structure with a door leaf concave sliding body groove (13A) formed in the door leaf concave sliding body, the door leaf concave sliding body is fixedly connected to the door leaf body (1) through a groove bottom bolt, and a roller left fixing plate (33B) and a roller right fixing plate (33A) for rotatably connecting a door leaf lifting roller (32) are respectively and fixedly arranged on the left side and the right side of the bottom of the door leaf concave sliding body groove (13A); an upper fixed electric control lock (34) and a lower fixed electric control lock (35) are respectively arranged at the upper and lower near edges of the concave sliding body groove (13A) of the door leaf; the door leaf lifting rollers (32) are arranged in the door leaf concave sliding body groove (13A) in a plurality of tight ways in the vertical direction.

8. An above-ground intelligent lift platform screen door for a multi-system railway vehicle as claimed in claim 7, wherein: the door leaf convex sliding body (14) is of an inner nested supporting structure, a convex sliding body supporting table (14A) is arranged in the middle of the inner nested supporting structure, corresponding to the door leaf concave sliding body (13), and the door leaf convex sliding body (14) is fixedly connected to the door leaf body (1) through a convex sliding body mounting hole (14D) which is formed in the convex sliding body supporting table (14A) in a penetrating mode; a supporting table rolling groove (14B) for limiting and rolling the door leaf lifting roller (32) is longitudinally formed in the middle of the convex sliding body supporting table (14A); and electric control lock locking holes (14C) which are respectively connected with the upper fixed electric control lock (34) and the lower fixed electric control lock (35) are formed in the supporting table rolling groove (14B) up and down and are used for connecting and fixing a plurality of groups of adjacent intelligent lifting platform screen doors in positioning and locking during descending and lifting operation.

9. An above-ground intelligent lift platform screen door for a multi-system railway vehicle as claimed in claim 1, wherein: the shielding door protection system (39) comprises a protection plate (39A), a protection plate rotating connecting rod (40) and an electric control hydraulic push rod (42), wherein the protection plate (39A) is of a rectangular plate-shaped structure, the length range of the protection plate corresponds to the width of a single-group shielding door of a platform, and the width range covers the upper part of the shielding door of the platform in a descending position; the left side and the right side of the lower part of the protection plate (39A) are respectively connected with one end of a protection plate rotating connecting rod (40) in a rotating way through a protection plate left connecting lug plate (39B) and a protection plate left connecting lug plate (39D), and the other end of the protection plate rotating connecting rod (40) is connected to a connecting rod fixing base (41) fixed on a platform in a rotating way; the middle of the lower side of the protection plate (39A) is close to the side edge of the platform, the middle of the protection plate is connected with an ear plate (39C) through the arranged middle of the protection plate, the ear plate is connected with an electric control hydraulic push rod (42) vertically fixed on the platform wall in a rotating mode, and the protection plate (39A) is driven to work in a normal protection working position and a riding working position of the platform screen door through up-and-down movement of the electric control hydraulic push rod (42).

10. An above-ground intelligent lift platform screen door for a multi-system railway vehicle as claimed in claim 6, wherein: the middle connecting rod structure in the protective glass plate expansion device of the protective height compensation expansion system can be additionally arranged into a multi-stage cross connecting rod according to the conditions of the specific glass plate compensation lifting height, speed and stability.

11. A ground intelligent lift platform screen door for a multi-system railway vehicle as claimed in claim 3, wherein: a vibration reduction rubber body (31) is arranged at the upper end parts of a left support sliding plate (3) and a right support sliding plate (4) of the shielding door lifting system, and the vibration reduction rubber body is integrally fixed with the support sliding plate through a rubber body mounting hole (31A) so as to reduce contact collision between the door leaf body (1) and the upper end parts of the left support sliding plate (3) and the right support sliding plate (4) when the door leaf body descends.

12. An above-ground intelligent lift platform screen door for a multi-system railway vehicle as claimed in claim 1, wherein: the rear cover plate (2) is integrally of a flat plate structure, edges of the rear cover plate are fixedly connected to the frame body of the door leaf body (1) through screws respectively, wherein the upper end of the rear cover plate (2) is provided with a cover plate upper fixing plate (2A) with a cover plate glass plate opening (2B), the cover plate glass plate opening (2B) is correspondingly arranged with the door leaf body glass plate opening (1E) formed in the upper portion of the door leaf body (1), and a glass plate (21) is lifted and retracted.