CN210011739U - Platform door laser anti-pinch system of rail transit curve platform - Google Patents
Platform door laser anti-pinch system of rail transit curve platform Download PDFInfo
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- CN210011739U CN210011739U CN201920668124.5U CN201920668124U CN210011739U CN 210011739 U CN210011739 U CN 210011739U CN 201920668124 U CN201920668124 U CN 201920668124U CN 210011739 U CN210011739 U CN 210011739U
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Abstract
The utility model discloses a rail transit curve platform's platform door laser anti-pinch system belongs to platform door safety inspection technical field, it is through setting up the laser emission subassembly and the laser receiving subassembly that do not invade the train limit respectively at curve platform both ends to correspond and set up a plurality of laser refraction subassemblies on the platform door, inject the laser beam that the laser emission subassembly was kicked into in the train limit by each laser refraction subassembly and refract in proper order and deflect on the laser receiving subassembly, thereby realize on the curve platform that the platform door and the automobile body between prevent the pinch detection. The utility model discloses a system is prevented pressing from both sides by laser, its simple structure, control is simple and convenient, and the accuracy of regulation, control is high, can effectively be applicable to the curve platform of various forms, and the accuracy that detects is high, and the error is little, and does not invade the train limit when the train moves, can fully ensure the stability of train operation, reduces the damage of preventing pressing from both sides the system to the train automobile body, and then ensures the security of station operation, has better application prospect and spreading value.
Description
Technical Field
The utility model belongs to the technical field of platform door safety inspection, concretely relates to rail transit curve platform's platform door laser prevents pressing from both sides system.
Background
With the continuous acceleration of the urbanization process, the application of rail transit is more and more common. Compared with other urban traffic systems, the rail transit system has the advantages that the traffic volume is large, the accuracy is high, people can go out conveniently, the rail transit system does not occupy the road running space of automobiles and buses, and the urban congestion problem is improved.
In the operation process of rail transit, a platform door system is generally arranged on a platform of the rail transit, and is used for distinguishing the platform from a track and realizing the boarding and disembarking of passengers. Due to the consideration of the train clearance in the running process of the train, the arrangement of the platform door system often needs to meet the requirement that a certain distance is reserved between the platform door system and the train which stops the station, so that a gap with a certain width exists between the platform door system and the train which stops the station, and certain potential safety hazards exist in the running process of the platform door system. In recent years, there are many accidents in which a passenger of a rail transit is caught between a closed platform door and a train door, and such accidents are particularly likely to occur when the passenger wants to forcibly get on the train even when the platform door and the train door are about to be closed, or when the passenger gets on or off the train in a crowded manner.
Obviously, in order to improve the safety of rail transit operation, firstly, passengers need to improve safety awareness and safely ride a bus; secondly, the related improvement of the existing rail transit station is also needed to improve the safety of the station operation. Therefore, many operation departments add anti-pinch safety measures on the rail transit platform to carry out anti-pinch detection in the use process of a platform door, the existing anti-pinch safety measures are generally correlation type laser detection systems arranged corresponding to the station, a laser transmitter and a terminal receiver are respectively arranged at two ends of the station, the laser transmitter transmits laser signals to the terminal receiver, the receiver converts the received modulated optical signals into corresponding electric signals, and when the light beams are intercepted, alarm signals are sent to a control host to ensure the operation safety of the platform door system. The system can improve the safety of the platform operation to a certain extent and reduce the condition that passengers are clamped in front of the platform door and the vehicle body. However, due to the straight-forward nature of laser, the existing laser detection system is often suitable for a linear platform, and for a curved platform, due to the existence of platform corners, the existing laser detection system cannot be effectively applied, and the curved platform can be divided into a plurality of short linear platforms only by increasing the form of a plurality of pairs of laser transmitters and terminal receivers, so that the anti-pinch detection of a platform door is realized, thus not only increasing the control difficulty of the laser detection system, but also greatly increasing the investment cost of equipment, and correspondingly increasing the fault probability of the equipment, so that the use and maintenance costs of the laser detection system are greatly increased; meanwhile, the existing laser detection system often needs to invade a train clearance, certain influence is caused on the setting stability of the detection system and the running safety of the train, the volume of the laser correlation device is often large, and the increase of the setting number not only increases the setting difficulty, but also aggravates the problem of invasion of the train clearance; in addition, current laser correlation device often sets up the both ends at the platform door, because the platform door is the movable part, vibration in the working process can make laser correlation precision receive certain influence, and this is more obvious on the curve platform, and then causes misalignment of testing result, appears lou examining, the situation of wrong report, has also increased the cost of maintaining, overhauing, influences the safe operation at station, increases the operation cost at station. Therefore, the existing laser detection system cannot be effectively applied to the curve station, and has a large application limitation.
SUMMERY OF THE UTILITY MODEL
To more than prior art's defect or improve in the demand one or more, the utility model provides a rail transit curve platform's platform door laser prevents pressing from both sides system, wherein sets up laser emission subassembly, laser receiving component and laser refraction subassembly through corresponding the platform door on curve platform, can effectively avoid laser emission subassembly and laser receiving component to the invasion of train boundary limit, and the accurate detection of preventing pressing from both sides of accomplishing between platform door and the train automobile body, the accuracy of detection is high, and the error is little, promotes curve platform's operation security.
In order to achieve the above object, the utility model provides a platform door laser anti-pinch system of a rail transit curve platform, which is characterized in that the system comprises a laser emitting component and a laser receiving component which are respectively arranged at two ends of the curve platform, and a plurality of laser refraction components which are correspondingly arranged on the platform door; wherein the content of the first and second substances,
the laser emission assembly is fixedly arranged on the station board, does not invade the train limit and comprises at least one laser emitter capable of emitting laser in the horizontal direction;
the laser receiving assembly is arranged corresponding to the laser emitting assembly, does not invade the train clearance, and comprises at least one laser receiver, all laser beams emitted by the laser emitting assembly can be emitted to the laser receiving assembly after being correspondingly refracted by each laser refracting assembly, and the laser receiving assembly can receive all the laser beams when no blockage exists between the platform door and the train;
the platform door of the curve platform is formed by correspondingly splicing at least two platform door straight-line sections, the included angle between every two adjacent platform door straight-line sections is not equal to 180 degrees, and the laser refraction assemblies are respectively arranged at the two ends of the platform door and the connection position of every two adjacent platform door straight-line sections;
the laser refraction assembly comprises a laser refraction unit and a driving assembly arranged corresponding to the laser refraction unit, the driving assembly is fixedly arranged on one side, opposite to a rail running area, of the platform door, the setting height of the driving assembly corresponds to that of the laser emitter, laser emitted by the laser emitter can be horizontally transmitted to the laser refraction unit adjacent to the laser emitter, the driving assembly can drive the laser refraction unit to move, the laser refraction unit can extend into the limit of the train during working and is far away from the limit of the train during non-working; then through laser beam is in proper order laser emission subassembly, a plurality of laser refraction subassembly with the transmission between the laser receiving assembly, can realize the detection is prevented pressing from both sides by the laser of curve platform.
As the utility model discloses a further improvement, platform door straightway is two, first straightway and second straightway promptly, just the quantity that sets up of laser refraction subassembly is three.
As a further improvement of the utility model, the driving component comprises a deflection steering engine, a swing arm and an adjustment steering engine;
the deflection steering engine is fixedly arranged on the platform door, and a deflection output shaft of the deflection steering engine is vertically arranged; the laser refraction unit is coaxially arranged with the adjustment output shaft and is fixedly connected with one end of the adjustment output shaft.
As a further improvement the platform door is provided with a storage tank for the laser refraction assembly, so that the laser refraction unit can deflect and keep away from the rear holding of the train limit is in the storage tank.
As a further improvement, laser emitter is a plurality of, a plurality of that set gradually along vertical laser emitter fixes in proper order on the first stand along vertical setting, and makes whole the laser beam that laser emitter launches is in same vertical plane.
As the utility model discloses a further improvement, correspond each laser emitter is provided with respectively laser receiver, it is a plurality of laser receiver sets gradually along vertical to fix in proper order on the second stand along vertical setting.
As a further improvement of the present invention, the laser refraction unit is a prism along a vertical arrangement.
As a further improvement of the present invention, the laser emitting assembly and/or the laser receiving assembly corresponds to the platform door straight line segment at the longitudinal level.
The above-described improved technical features may be combined with each other as long as they do not conflict with each other.
Generally, through the utility model discloses above technical scheme who conceives compares with prior art, has following beneficial effect:
(1) the utility model discloses a platform door laser anti-pinch system of rail transit curve platform, it is through setting up laser emission subassembly and laser receiving assembly respectively on the platform board at curve platform both ends, laser emission subassembly and laser receiving assembly do not invade the train boundary limit, and correspond to set up a plurality of laser refraction subassemblies that can stretch into the train boundary limit in operating condition and keep away from the train boundary limit in the unoperated state on the platform door subassembly, the laser beam that the laser emission subassembly penetrated into the train boundary limit by each laser refraction subassembly refracts the laser beam deflection in proper order to the laser receiving assembly, then compare the laser beam quantity received with the laser beam quantity sent through the laser receiving assembly, judge whether accompany people or thing in the train boundary, thereby effectively realized the anti-pinch detection of platform door on the curve platform, avoided the large amount of setting of laser emission subassembly and laser receiving assembly, the setting cost of the laser anti-pinch system on the curve platform is reduced;
(2) the utility model discloses a platform door laser anti-pinch system of track traffic curve platform, its laser emission subassembly and laser receiving assembly keep away from the train limit, and the laser refraction subassembly stretches into the train limit after the train stops steadily and keeps away from the train limit when the train moves, when guaranteeing to prevent pressing from both sides the detection accuracy, effectively avoided the laser anti-pinch system to invade the train limit after probably rubbing, damaging to the cutting of train automobile body, guaranteed the security of train operation and the stability that the laser anti-pinch system set up, prolonged the life of laser anti-pinch system;
(3) the utility model discloses a platform door laser anti-pinch system of track traffic curve platform, it is through setting up a plurality of laser refraction subassemblies at one side that the platform door just goes on the track region to correspond laser refraction unit in the laser refraction subassembly and set up drive assembly, it stretches into or keeps away from the train limit to correspond drive laser refraction unit by drive assembly, the anti-pinch detection of platform door under the train limit condition is not invaded to laser emission subassembly and laser receiving component has effectively been realized, and the setting cost of laser refraction unit is low, control accuracy is high, can fully promote the setting economy and the detection accuracy of laser anti-pinch system;
(4) the utility model discloses a control method of platform door laser anti-pinch system of rail transit curve platform, its step is simple, and control is simple and convenient, can effectively avoid the invasion of train boundary limit by the laser anti-pinch system when the train operation, guarantees that no people or thing exist between train body and the platform door before the train leaves the station, fully guarantees the security of platform operation;
(5) the utility model discloses a rail transit curve platform's platform door laser anti-pinch system, a structure is simple, control is simple and convenient, the accuracy of regulation, control is high, can effectively realize the curve platform on the platform door and the automobile body between prevent pressing from both sides the detection, the accuracy that detects is high, the error is little, and laser prevents that the system of pressing from both sides does not invade the train gauge when the train moves, can fully ensure the stability of train operation, the reduction prevents the damage of pressing from both sides the system to the train automobile body, and then ensures the security of station operation, better application prospect and spreading value have.
Drawings
Fig. 1 is a schematic view of a laser anti-trap system in an embodiment of the present invention, which is configured on a first curve platform;
fig. 2 is a top view of a first embodiment of a laser anti-trap system on a first curvilinear platform;
fig. 3 is a top view of a structure of the laser anti-trap system on the curve platform ii according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a laser emitting component of the laser anti-pinch system according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a laser receiving assembly of the laser anti-pinch system according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of the structure of the laser refraction assembly on the side close to the laser emitting assembly in the embodiment of the present invention;
fig. 7 is a schematic view of the structural arrangement of the laser refraction assembly on the side close to the laser receiving assembly in the embodiment of the present invention;
in all the figures, the same reference numerals denote the same features, in particular: 1. the laser emitting component 101 is a laser emitter 102 is a first support rod; 2. a laser receiving assembly, 201, a laser receiver, 202, a second supporting rod; 3. station board, 4 station board door assembly, 401 end door, 402 first straight line segment, 403 second straight line segment, 404 accommodating groove; 5. the laser refraction assembly comprises 501 laser refraction units 502 deflection steering engines 503 adjustment steering engines 504 swing arms.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
The utility model discloses laser in the preferred embodiment prevents pressing from both sides the system setting on the curve platform as shown in figure 1, wherein, the curve platform includes station board 3 and platform door subassembly 4, station board 3 is the curve station board, its one side lateral wall that is close to the rail line region has taken place the buckling of certain angle at the middle part, and then when platform door subassembly 4 sets up, except that the end door 401 of locating station board 3 both ends separately, first straightway 402 and second straightway 403 that have set up each other into certain angle have been corresponded between both ends door 401, regard as the contained angle between two platform doors at the terminal surface contained angle of the regional one side of rail line with two platform doors, obviously, at the curve platform, the contained angle between two platform doors is not equal to 180, under the general condition, consider the degree of difficulty that the train turns round, the contained angle between two platform doors often is between 180 ~ 240. Obviously, the trackbound area of the train in the curved platform may be as shown in fig. 1 and 2, or as shown in fig. 3, in the curved platform shown in fig. 3 the angle between the two platform doors is less than 180 °, typically 120 ° to 180 °. Under the above two kinds of train rail way forms, the arrangement form of each part in the laser anti-pinch system can all be the same, and the main difference lies in the difference of the refraction mode of the laser refraction component 5 at the platform door junction.
In the preferred embodiment of the present invention, the track type shown in fig. 1 and fig. 2 is taken as an example, wherein the platform plate 3 can be regarded as formed by correspondingly splicing two station plate units forming a certain included angle with each other, the two ends of the platform plate 3 are respectively provided with the end doors 401, and the end doors 401 are preferably arranged along the horizontal direction, i.e. perpendicular to the main line direction (longitudinal direction); accordingly, a first straight section 402 and a second straight section 403 are provided on the two station plate units, respectively, and the two station doors are connected at the middle corners of the station plate 3 and connected with the corresponding end doors 401 at the ends, thereby forming the station door assembly 4 as shown in fig. 1 and 2. Obviously, the straight line direction of the curved platform is not a straight line in the preferred embodiment, i.e. the longitudinal/straight line directions at both sides of the intersection of the two platform doors are at an angle to each other, and in the preferred embodiment, the first straight line segment 402 and the second straight line segment 403 are preferably respectively disposed along the corresponding straight line directions.
Furthermore, the laser emitting assembly 1 and the laser receiving assembly 2 are correspondingly arranged at two ends of the platform plate 3, and the two assemblies are fixedly arranged on the platform plate 3 so as to avoid or reduce the influence of vibration on the working precision of the two assemblies in the working process of the platform door assembly 4; further, the laser transmitter assembly 1 and the laser receiver assembly 2 are remote from the train limit and are further preferably longitudinally flush with the respective platform door or are arranged on the side of the respective platform door facing away from the rail section.
Specifically, in the preferred embodiment, the laser emitting assembly 1 is disposed corresponding to the first straight line segment 402, the laser receiving assembly 2 is disposed corresponding to the second straight line segment 403, and the laser emitting assembly 1 is disposed on the platform board 3 on the side of the first straight line segment 402 away from the second straight line segment 403, and correspondingly, the laser receiving assembly 2 is disposed on the platform board 3 on the side of the second straight line segment 403 away from the first straight line segment 402; further, the laser emitting assembly 1 and the laser receiving assembly 2 are respectively far away from the train clearance, and it is further preferable that the distance between the laser emitting assembly 1 and the train clearance is not less than the distance between the first straight line section 402 and the train clearance, and the distance between the laser receiving assembly 2 and the train clearance is not less than the distance between the second straight line section 403 and the train clearance; it is further preferred that the laser emitting assembly 1 is longitudinally flush with the first linear section 402 and/or the laser receiving assembly 2 is longitudinally flush with the second linear section 403.
Further, the laser transmitter assembly 1 in the preferred embodiment is as shown in fig. 4, and comprises at least one laser transmitter 101 and a first support bar 102 arranged vertically, wherein the bottom of the first support bar 102 is fixed on the top surface of the station plate 3, and the laser transmitter 101 is fixedly arranged on the first support bar 102; in general, the laser transmitters 101 are arranged in a plurality of vertical intervals, the laser transmitters 101 are arranged in a vertical alignment, and the laser beams emitted by the laser transmitters 101 are all in the same vertical plane. For example, in a preferred embodiment, the laser emitters 101 are two vertically spaced, as shown in fig. 4.
Further, the laser receiving assembly 2 in the preferred embodiment includes at least one laser receiver 201 as shown in fig. 5, and the laser receivers 201 in the preferred embodiment are arranged in one-to-one correspondence with the laser transmitters 101, that is, the number of the laser receivers 201 is equal to the number of the laser transmitters 101. For example, in the preferred embodiment, the number of the laser receivers 201 is two, which are vertically spaced, as shown in fig. 5, and then it is determined that no person or object exists between the platform door and the train body by each laser receiver 201 correspondingly receiving the laser beam, otherwise, the person or object is clamped between the platform door and the train body; of course, the laser receiver 201 may also be configured to receive all the laser beams simultaneously, and detect whether there is a person or an object between the platform door and the train body by determining whether the number of the received laser beams is equal to the number of the emitted laser beams.
Further, since the laser transmitter assembly 1 and the laser receiver assembly 2 do not protrude into the train clearance, three sets of laser refraction assemblies 5 that can protrude into the train clearance are provided for each of the two assemblies in the preferred embodiment, as shown in fig. 1 and 2. The three groups of laser refraction components 5 are respectively arranged at the end part of the first straight line section 402 close to the laser emitting component 1, the position where the first straight line section 402 is connected with the second straight line section 403 and the end part of the second straight line section 403 close to the laser receiving component 2, and are respectively referred to as a first refraction unit, a second refraction unit and a third refraction unit for convenient distinguishing, then the laser beam from the laser emitting component 1 can be correspondingly emitted onto the first refraction unit, the first refraction unit refracts the laser beam for the first time, the refracted laser beam longitudinally irradiates the second refraction unit, the second refraction unit further refracts the laser beam for the second time, the refracted laser beam correspondingly irradiates the third refraction unit, and finally the third refraction unit refracts the laser beam for the third time, and the refracted laser beam correspondingly irradiates the laser receiving component 2, thereby realize the anti-pinch detection of platform door.
Specifically, the laser refraction assembly 5 in the preferred embodiment includes a laser refraction unit 501, and the laser refraction unit 501 may further be a prism vertically arranged in the preferred embodiment; further, the laser refraction unit 501 in the preferred embodiment may reach into the train limit during operation and be away from the train limit during non-operation, i.e. the laser refraction unit 501 is movably disposed on the platform door.
In a preferred embodiment, the laser refraction assembly 5 is as shown in fig. 6 and fig. 7, wherein the laser refraction assembly 5 further includes a deflection steering gear 502 disposed on the platform door, a deflection output shaft of the deflection steering gear 502 is vertically disposed, and a swing arm 504 with a horizontal axis is disposed corresponding to the deflection output shaft, one end of the swing arm 504 is fixedly connected to the deflection output shaft, the other end of the swing arm is fixedly provided with an adjustment steering gear 503, an adjustment output shaft of the adjustment steering gear 503 is vertically disposed, one end of the laser refraction unit 501 is coaxially connected to the adjustment output shaft, and then the adjustment output shaft can drive the laser refraction unit 501 to rotate around the shaft, so as to adjust the refraction angle of the laser refraction unit 501. Further, the length of the swing arm 504 in the preferred embodiment should be such that when the axis of the swing arm 504 is perpendicular to the direction of the straight line, the end of the swing arm 504 facing away from the steering gear 502 can correspondingly extend into the train limit and be spaced from the train body.
Further, in the preferred embodiment, a groove is formed at a position corresponding to the protection door corresponding to the laser refraction assembly 5 for correspondingly accommodating the deflection steering engine 502, and preferably, an accommodating groove 404 is formed corresponding to the laser refraction unit 501, so that the laser refraction unit 501 can be correspondingly deflected and accommodated in the accommodating groove 404, obviously, the accommodating groove 404 can also correspondingly accommodate the adjustment steering engine 503 and the swing arm 504, as shown in fig. 6 and 7. So set up, can effectively guarantee that when the train moves, there is not device or structure invasion in the train limit, also can guarantee that laser detects the time can fully detect whether accompany people or thing in the train limit, guarantee the security of train operation.
The utility model discloses platform door laser anti-pinch system in preferred embodiment sets up the completion after, need debug each laser refraction unit 5, the calibration, in the debugging process, the direction of perpendicular positive line is deflected to swing arm 504 that will correspond by each steering wheel 502 that deflects earlier, open laser emission subassembly 1, produce at least a branch of laser and shine on first refraction unit, adjustment steering wheel 503 that then the adjustment corresponds, make laser beam after three laser refraction unit 501 refraction, can correspond and receive by laser receiving subassembly 2, after the debugging is accomplished, adjustment steering wheel 503 locks, and deflect steering wheel 502 record from the angle of deflection return initial position in the train boundary limit, with its work deflection angle as every laser refraction unit 501, it is the same with the calibration time to ensure every deflection of laser refraction unit 501, realize the accurate refraction of laser. Of course, after a long time of reciprocal swing, the refraction angle of each laser refraction unit 501 may slightly change, so that the laser anti-pinch system can be calibrated during the window-free time of the station, and the calibration process can be performed according to the above steps.
Further, the utility model discloses in the preferred embodiment rail transit curve platform's platform door laser anti-pinch system, it when practical application, can preferably control with reference to following step:
s1: before a train enters a station, the laser emitting assembly 1, the laser receiving assembly 2 and each laser refraction assembly 5 are respectively in a non-working state, and each laser refraction unit 501 does not invade the limit of the train;
s2: after the train enters the station and stops stably, the sliding door corresponding to the train door starts to work, and passengers start to get on or off the train; meanwhile, the laser emitting component 1, the laser receiving component 2 and each laser refraction component 5 respectively receive a control signal to start working, and each laser refraction unit 501 is respectively driven by a corresponding deflection steering engine 502 and deflects into a train limit;
s3: the laser emitting assembly 1 and the laser receiving assembly 2 start to work, and each laser emitter 101 generates a laser beam which is refracted and transmitted to the laser receiver 201 by each laser refraction unit 501 in sequence;
s4: before the train is going to exit, the platform door of the station starts to be closed slowly, at the moment, the laser receiving assembly 2 correspondingly feeds back signals to the train and/or the station control room, and then whether the platform door needs to be closed in an emergency stop mode or not is judged according to the signals fed back by the laser receiving assembly 2, and whether the train can be opened from the station or not is judged;
specifically, when the number of the laser beams received by the laser receiving assembly 2 is equal to that of the laser beams emitted by the laser emitting assembly 1, it is indicated that no people or objects are clamped between the platform door assembly and the train body, a 'normal' signal is fed back at the moment, the platform door can be correspondingly closed, and the train can be out of the station after the platform door is closed; when the number of the laser beams received by the laser receiving assembly 2 is not equal to that of the laser beams emitted by the laser emitting assembly 1, the fact that people or objects are separated between the platform door assembly and the train body is indicated, an abnormal signal is fed back at the moment, the platform door is closed temporarily, and the train stops.
If the laser receiving component 2 can not receive the laser beams completely, before feeding back the 'abnormal' signals, fine adjustment of the positions of the laser refraction units 501 can be carried out through the adjustment steering engines 503, if the laser receiving component 2 can receive the laser beams with the number equal to that of the laser beams emitted by the laser emitter 101 after fine adjustment, the 'normal' signals are fed back, and the laser anti-pinch system is calibrated in the next station empty window period; if the laser receiving component 2 can not receive the laser beam after fine adjustment, an abnormal signal is fed back, the platform door is closed temporarily, and the train stops.
S5: when the feedback signal is a 'normal' signal (i.e. it is ensured that no people or objects are clamped between the platform door and the train body), and the train is ready to be out of the station, the train starts when the platform door is closed, and each laser refraction unit 501 is controlled by the corresponding deflection steering engine 502, so that each laser refraction unit 501 deflects to be away from the train limit and finally returns to the initial state.
Further, the laser anti-pinch system can start working immediately after the train is stopped stably, or can start working within a certain time before the platform door is ready to be closed, and meanwhile, after each laser refraction unit 501 deflects to extend into the train limit, the laser transmitter 101 can start working immediately, or can start transmitting a laser beam when the platform door is ready to be closed. In a word, the working time interval of the laser anti-pinch system can be adjusted according to actual needs, the adjusting space is large, and the flexibility is high. And obviously, if the curve platform is not two segmentation structures, the utility model provides a system is prevented pressing from both sides by laser still can be suitable for, only need correspond increase laser refraction subassembly 5 set up quantity can.
The utility model discloses in correspond platform door laser anti-pinch system that track traffic curve platform set up, it sets up laser emission subassembly and laser receiving component respectively through on the station platen at curve platform both ends, laser emission subassembly and laser receiving component do not invade the train boundary limit, and correspond on the platform door subassembly and set up a plurality ofly can stretch into the train boundary limit and keep away from the laser refraction subassembly of train boundary limit at unoperated state at operating condition, inject the laser beam that laser emission subassembly jetted into in the train boundary limit by each laser refraction subassembly and refract in proper order and deflect on the laser receiving component, contrast received laser beam quantity and the laser beam quantity that sends through the laser receiving component then, judge whether accompany people or thing in the train boundary limit, thereby realize the anti-pinch detection of platform door.
The utility model provides a platform door laser anti-pinch system, its simple structure, control is simple and convenient, and the accuracy of regulation, control is high, can effectively avoid the invasion of laser emission subassembly and laser receiving assembly to the train gauge, avoids probably to the train automobile body the rubbing of cutting the piece, damage after the laser anti-pinch system invades the train gauge, has guaranteed the security of train operation and the stability of laser anti-pinch system setting, has prolonged the life of laser anti-pinch system; meanwhile, through the arrangement of the plurality of laser refraction components, the transmission and the reception of laser beams are effectively realized, the anti-pinch detection between the platform door of the curve platform and the train body is accurately finished, a large amount of laser emission components and laser receiving components are avoided, the arrangement cost of a laser anti-pinch system is saved, and the control process of the laser anti-pinch detection is simplified; in addition, the corresponding setting of laser refraction subassembly not only effectively has realized the accurate transmission of curve platform train limit interior laser, can also avoid the invasion of laser refraction subassembly to the train limit when the train operation through the corresponding deflection of laser refraction subassembly, fully guarantees the security and the stability of station operation. In a word, through the setting of above-mentioned laser anti-pinch system, can accurately realize the laser of curve platform and prevent pressing from both sides the detection, ensure stable, the safe operation at track traffic station, have better application prospect and spreading value.
It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. A platform door laser anti-pinch system of a rail transit curve platform is characterized by comprising a laser emitting component and a laser receiving component which are respectively arranged at two ends of the curve platform, and a plurality of laser refraction components which are correspondingly arranged on a platform door; wherein the content of the first and second substances,
the laser emission assembly is fixedly arranged on the station board, does not invade the train limit and comprises at least one laser emitter capable of emitting laser in the horizontal direction;
the laser receiving assembly is arranged corresponding to the laser emitting assembly, does not invade the train clearance, and comprises at least one laser receiver, all laser beams emitted by the laser emitting assembly can be emitted to the laser receiving assembly after being correspondingly refracted by each laser refracting assembly, and the laser receiving assembly can receive all the laser beams when no blockage exists between the platform door and the train;
the platform door of the curve platform is formed by correspondingly splicing at least two platform door straight-line sections, the included angle between every two adjacent platform door straight-line sections is not equal to 180 degrees, and the laser refraction assemblies are respectively arranged at the two ends of the platform door and the connection position of every two adjacent platform door straight-line sections;
the laser refraction assembly comprises a laser refraction unit and a driving assembly arranged corresponding to the laser refraction unit, the driving assembly is fixedly arranged on one side, opposite to a rail running area, of the platform door, the setting height of the driving assembly corresponds to that of the laser emitter, laser emitted by the laser emitter can be horizontally transmitted to the laser refraction unit adjacent to the laser emitter, the driving assembly can drive the laser refraction unit to move, the laser refraction unit can extend into the limit of the train during working and is far away from the limit of the train during non-working; then through laser beam is in proper order laser emission subassembly, a plurality of laser refraction subassembly with the transmission between the laser receiving assembly, can realize the detection is prevented pressing from both sides by the laser of curve platform.
2. The platform door laser anti-trap system of claim 1, wherein the platform door straight sections are two, i.e. a first straight section and a second straight section, and the number of the laser refraction elements is three.
3. The platform door laser anti-pinch system of the rail transit curvilinear platform of claim 1 or 2, wherein the driving assembly comprises a deflection steering engine, a swing arm and an adjustment steering engine;
the deflection steering engine is fixedly arranged on the platform door, and a deflection output shaft of the deflection steering engine is vertically arranged; the laser refraction unit is coaxially arranged with the adjustment output shaft and is fixedly connected with one end of the adjustment output shaft.
4. The system of claim 3, wherein a receiving groove is formed on the platform door corresponding to the laser refraction element for receiving the laser refraction element in the receiving groove after the laser refraction element is deflected away from the train limit.
5. The platform door laser anti-pinch system of the rail transit curved platform according to claim 1 or 2, wherein the laser emitters are vertically arranged in sequence, and the laser emitters are sequentially fixed on a first vertical column arranged in sequence, so that laser beams emitted by all the laser emitters are in the same vertical plane.
6. The laser anti-trap system for platform door of rail transit curved platform of claim 5, wherein said laser receiver is disposed corresponding to each of said laser emitters, and a plurality of said laser receivers are sequentially disposed along the vertical direction and sequentially fixed on the second vertical column disposed along the vertical direction.
7. The platform door laser anti-pinch system of the rail transit curved platform of claim 1 or 2, wherein the laser refraction unit is a prism vertically disposed.
8. The platform door laser anti-trap system of claim 1 or 2, wherein the laser emitting assembly and/or the laser receiving assembly are longitudinally aligned with the corresponding platform door straight line segments.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920668124.5U CN210011739U (en) | 2019-05-10 | 2019-05-10 | Platform door laser anti-pinch system of rail transit curve platform |
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| CN201920668124.5U CN210011739U (en) | 2019-05-10 | 2019-05-10 | Platform door laser anti-pinch system of rail transit curve platform |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103993A (en) * | 2019-05-10 | 2019-08-09 | 中铁第四勘察设计院集团有限公司 | The gate laser anti-clipping system and its control method of rail traffic curve platform |
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2019
- 2019-05-10 CN CN201920668124.5U patent/CN210011739U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103993A (en) * | 2019-05-10 | 2019-08-09 | 中铁第四勘察设计院集团有限公司 | The gate laser anti-clipping system and its control method of rail traffic curve platform |
| CN110103993B (en) * | 2019-05-10 | 2024-01-16 | 中铁第四勘察设计院集团有限公司 | Platform door laser anti-pinch system of track traffic curve platform and control method thereof |
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