Urban rail transit signal detection device

Abstract

The invention discloses an urban rail transit signal detection device, and belongs to the technical field of rail detection devices.The urban rail transit signal detection device comprises a first detection trolley and a second detection trolley, and the top end of the first detection trolley and the top end of the second detection trolley are each fixedly provided with a first folding guide rail; the top ends of the two first folding guide rails are provided with folding mechanisms capable of enabling the track detection vehicle to be contracted into a compact shape. And a splicing mechanism for ensuring the accuracy and stability in the splicing process is arranged on one side of the top end of the folding mechanism. By arranging the folding mechanism, modular design can be conducted on the track detection vehicle, the size of the track detection vehicle in a non-working state can be greatly reduced on the premise that normal functions of the track detection vehicle are not affected, the track detection vehicle is shrunk into a compact shape, the transportation cost is reduced, and the storage space requirement is lowered; and the maneuverability and the flexibility of the equipment are improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of track detection device, and particularly relates to a kind of urban rail transit signal detection device. BACKGROUND

[0002] Urban rail transit is the backbone of urban public transport, which has the characteristics of energy saving, land saving, large capacity, all-weather, non-pollution and safety, belongs to green environmental protection transportation system, and meets the principle of sustainable development, especially suitable for large and medium-sized cities. Urban rail transit is various, which can be divided into urban railway, suburban railway, underground railway, light rail transportation, urban tram, monorail transportation, magnetic suspension line, airport connection railway, new transportation system, etc. In the urban rail transit system, accurate positioning and data collection of trackside signal equipment are very important. At present, the commonly used way is to use track detection vehicle to perform this task. The track detection vehicle is a track geometry detection instrument, which is mainly used for high-speed railway, tram, subway, and ballast railway with high design speed. The track detection vehicle is composed of track gauge, horizontal measurement device, prism of machine body, industrial computer, high-precision total station, wireless communication unit, etc. It is a measurement device for detecting internal and external geometric state of railway track (track gauge, level, track direction, height, positive loss and torsion). It is of great significance for laying of high-speed railway bed structure, long rail laying, long rail fine adjustment and later maintenance.

[0003] In the existing urban rail transit operation and maintenance system, detecting traffic signals on the track is a very important work to ensure the safety and efficiency of train operation. At present, the commonly used way is to use track detection vehicle to perform this task. This track detection vehicle is usually equipped with professional detection device, which can collect and analyze various signal parameters comprehensively, and perform preliminary data analysis and storage through on-board computer. Then, technical personnel further research and evaluate signal quality condition. However, the volume of track detection vehicle is relatively large, and the structure is complex. When transferring between different stations, due to the characteristics of the vehicle itself and the route limitation, it often takes a long time to complete the scheduling and preparation work, which seriously reduces the overall work efficiency, especially in the case of emergency repair or temporary sampling inspection, the disadvantage is more obvious.

[0004] Therefore, it is urgent to provide a kind of urban rail transit signal detection device to solve the above problems. SUMMARY

[0005] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art and provide a kind of urban rail transit signal detection device.

[0006] The technical scheme adopted to solve the above technical problems is as follows: a kind of urban rail transit signal detection device, comprising first detection trolley and second detection trolley, the top of first detection trolley and second detection trolley is fixed with first folding guide rail; The top of two first folding guide rails is provided with a folding mechanism capable of making the track detection vehicle shrink into a compact shape; The top of the folding mechanism is provided with a splicing mechanism to ensure accuracy and stability during splicing, and the other side of the top of the folding mechanism is provided with a limiting mechanism to avoid interference with the folding operation of the track detection vehicle; The top of the splicing mechanism is provided with a quick release mechanism capable of quickly disassembling and assembling the detection module.

[0007] Through the above technical scheme, the operator unfolds the track detection vehicle to the working state, starts the power system of the first detection trolley and the second detection trolley, and makes it slowly run along the urban rail.

[0008] Further, the folding mechanism includes two first folding sliders slidingly installed outside the two first folding guide rails, the top of each of the four first folding sliders is fixed with a quarter rotating base, four quarter rotating discs are rotatably installed between the four quarter rotating bases, and the top of each of the four quarter rotating discs is fixed with a second folding slider.

[0009] Through the above technical scheme, when the four quarter rotating discs and the four quarter rotating bases are separated, the limiting action of the first folding guide rail and the second folding guide rail makes the quarter rotating disc and the quarter rotating base unable to rotate, when the four quarter rotating discs and the four quarter rotating bases are spliced, the four quarter rotating discs can rotate through the four quarter rotating bases, thereby facilitating the track detection vehicle to shrink into a compact shape, greatly reducing the occupied space, and facilitating transportation and storage.

[0010] Further, two second folding guide rails are slidingly installed inside the four second folding sliders, and mounting folding plates are fixed to the top of the two second folding sliders, one end of a fixing bolt extending into the first folding guide rail is threadedly installed at both ends of the mounting folding plate.

[0011] Through the technical scheme, the first folding guide rail, the second folding guide rail, the first folding sliding block, the second folding sliding block, the quarter rotation base and the quarter rotation disc are internally provided with fixing screw holes threadedly connected with fixing bolts, the unfolded first folding guide rail and the second folding guide rail can be fixed through the fixing bolts, when the track detection vehicle is unfolded, the two second folding guide rails and the mounting folding plate are rotated by hand, the four second folding sliding blocks drive the four quarter rotation discs to rotate through the four quarter rotation bases, the second folding guide rail and the first folding guide rail are in a cross state, the two first folding guide rails and the second folding guide rails are separated by hand, the two first folding guide rails and the second folding guide rails are in a cross state, the fixing bolts are rotated by a tool, the unfolded first folding guide rail and the second folding guide rail can be fixed through the fixing bolts, and the track detection vehicle is quickly assembled, when the track detection vehicle is folded, the fixing bolts are loosened, the first folding guide rail moves stably on the second folding guide rail through the first folding sliding block and the second folding sliding block, the second folding guide rail moves stably on the first folding guide rail through the first folding sliding block and the second folding sliding block, and the two do not interfere with each other, and the track detection vehicle is folded, when the four quarter rotation discs and the four quarter rotation bases are spliced, the four quarter rotation discs are rotated through the four quarter rotation bases, and the track detection vehicle is conveniently shrunk into a compact shape, transportation cost and storage space requirement are reduced, and the mobility and flexibility of the equipment are improved.

[0012] Further, the splicing mechanism comprises mounting folding rods rotatably installed at the top ends of the two mounting folding plates, one side of each of the mounting folding rods is rotatably provided with an L-shaped folding plate, and the top end of each of the L-shaped folding plates is fixedly provided with a positioning insert plate.

[0013] Through the technical scheme, the mounting folding plate, the mounting folding rod and the positioning insert plate are on the same horizontal line at ordinary times, do not interfere with the folding of the track detection vehicle, when in use, the mounting folding rod is rotated by 90 degrees through the mounting folding plate, the positioning insert plate is rotated by 90 degrees through the mounting folding rod, and the two positioning insert plates are spliced.

[0014] Further, one side of the mounting folding rod is fixedly provided with a spring shell, the inner wall of the spring shell is fixedly provided with a cylindrical spring, one end of the cylindrical spring is fixedly provided with a rack insert rod, and the bottom end of the L-shaped folding plate is provided with a folding plate slot in mesh connection with the rack insert rod.

[0015] Through the technical scheme, after the folding mechanism is unfolded, the mounting folding rods on both sides of the mounting folding plate are rotated by ninety degrees, then the positioning insert plates are rotated by ninety degrees through the mounting folding rods, the two positioning insert plates are spliced, the two rack insert rods are in staggered overlapping state when opposite, the cylindrical spring drives the rack insert rod to insert into the inside of the folding plate slot, so that the two rack insert rods fix the two positioning insert plates through the folding plate slot, and the two mounting folding rods are connected and fixed, when the splicing mechanism is folded, the two rack insert rods are pressed back into the spring shell by hand, the mounting folding rods and the positioning insert plates are respectively folded by ninety degrees, so that the mounting folding rods and the positioning insert plates are on the same horizontal line with the mounting folding plate, the folding operation of the track detection vehicle is not affected, interference to the folding operation of the track detection vehicle is avoided, and the operability and reliability of the overall equipment are improved.

[0016] Further, the limiting mechanism comprises torsion spring seat shells fixed to the other side top ends of the two mounting folding plates respectively, folding rotation rods are rotatably installed in the inside of the torsion spring seat shells, and rotation rod torsion springs are fixed between one end of the folding rotation rod and the torsion spring seat shell.

[0017] Through the technical scheme, the folding plate limiting plate on the folding rotation rod is driven by the rotation rod torsion spring to adhere to and be parallel to the mounting folding plate in daily use, and interference to the rotation of the mounting folding rod is avoided.

[0018] Further, folding rotation rods are rotatably installed in the inside of the torsion spring seat shells, and rotation rod torsion springs are fixed between one end of the folding rotation rod and the torsion spring seat shell.

[0019] Through the technical scheme, when the mounting folding rods and the positioning insert plates are on the same horizontal line with the mounting folding plate, the rack insert rod is loosened, the cylindrical spring drives the rack insert rod to extend to the outside of the spring shell, the rack insert rod drives the rotation rod gear and the folding rotation rod to rotate by ninety degrees, so that the folding rotation rod drives the folding plate limiting plate to fix the L-shaped folding plate through the folding plate limiting slot, and the folded mounting folding rod is fixed at the same time, the accuracy and stability of the two positioning insert plates in the splicing process are ensured, and problems such as inconvenient equipment installation caused by splicing errors are avoided.

[0020] Further, the quick release mechanism comprises a mounting base shell adhering to the top end of the positioning insert plate, four quick release slot holes are arranged at the top end of the positioning insert plate, four quick release rotation rods are rotatably installed in the inside of the mounting base shell, and a three-dimensional laser camera is fixed to the top end of the mounting base shell.

[0021] Through the technical scheme, the three-dimensional laser camera is quickly installed through the butt joint of the quick release rotating rod of the mounting base shell and the quick release slot hole of the positioning insert plate, and other detection modules can also be quickly disassembled and assembled through the quick release rotating rod, the adaptability and multifunctionality of the equipment are enhanced, various complex detection task requirements can be met, the market competitiveness of the equipment is improved, the traffic signal conditions around the urban rail are photographed through the three-dimensional laser camera, the photographed data is transmitted to the computer after returning, the photographed data is processed and analyzed according to a predetermined algorithm through the computer, and once an abnormal traffic signal is found, a warning window is popped up on the software interface to display detailed information.

[0022] Further, three synchronous connecting rods are rotatably installed between the four quick release rotating rods, an adjusting rotating rod is rotatably installed on the inner bottom wall of the mounting base shell, an adjusting screw rod penetrating through one end of the adjusting rotating rod and extending to the outside of the mounting base shell is screwedly installed in the adjusting rotating rod, the outer portion of the adjusting screw rod is rotatably connected with one synchronous connecting rod, and the inner bottom wall of the mounting base shell is provided with a fixing hole in embedded connection with the adjusting screw rod.

[0023] Through the technical scheme, the adjusting screw rod is rotated by rotating and moving the adjusting screw rod by hand, the four quick release rotating rods are rotated by ninety degrees through the three synchronous connecting rods driving the four quick release rotating rods, the quick release rotating rod is fixedly connected with the positioning insert plate, the adjusting screw rod is rotated by hand, the adjusting screw rod is extended into the fixing hole, the adjusting screw rod is fixed, and the three-dimensional laser camera is quickly disassembled and assembled, the downtime is reduced, the maintenance time of the equipment is greatly shortened, and the maintenance efficiency and flexibility are improved.

[0024] The beneficial effects of the present application are as follows: (1) The present application can modularize the track detection vehicle through the folding mechanism, can greatly reduce the volume of the track detection vehicle in the non-working state without affecting the normal function of the track detection vehicle, can make the track detection vehicle shrink into a compact shape, can reduce the transportation cost and storage space requirement, can improve the mobility and flexibility of the equipment, and can ensure the stability and reliability of the folding process through reasonable design of the connecting point; (2) The present application is provided with a splicing mechanism and a limiting mechanism, the splicing mechanism can butt joint two mounting folding rods and splice two positioning insert plates, can ensure the accuracy and stability of the two positioning insert plates during splicing, can avoid the inconvenience of equipment installation caused by splicing error, can make the equipment installation more convenient and efficient, can effectively fix the folded mounting folding rod and the positioning insert plate, can not affect the folding operation of the track detection vehicle, can avoid interference with the folding operation of the track detection vehicle, and can improve the operability and reliability of the whole equipment; (3) The quick dismounting mechanism is arranged, the quick dismounting of the three-dimensional laser camera is realized, the downtime is reduced, the maintenance time of the equipment is greatly shortened, the maintenance efficiency and flexibility are improved, the operation of complex tools is not needed, the requirement for the operation personnel skills is reduced, the failure risk caused by human factors is reduced, meanwhile, different detection modules can be conveniently installed and adapted, the adaptability and multifunctionality of the equipment are enhanced, various complex detection task requirements can be met, and the market competitiveness of the equipment is improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a perspective view of the present application; Figure 2 is an unfolded structure view of the folding mechanism, the splicing mechanism and the limiting mechanism of the present application; Figure 3 is a folded structure view of the folding mechanism, the splicing mechanism and the limiting mechanism of the present application; Figure 4 is an exploded structure schematic view of the folding mechanism and the splicing mechanism of the present application; Figure 5 is an exploded structure schematic view of the first folding sliding block and the second folding sliding block of the present application; Figure 6 is an internal structure schematic view of the splicing mechanism of the present application; Figure 7 is an exploded structure schematic view of the limiting mechanism of the present application; Figure 8 is a structure schematic view of the folding mechanism and the splicing mechanism of the present application; Figure 9 is an exploded structure schematic view of the splicing mechanism of the present application; Figure 10 is a structure schematic view of the quick dismounting mechanism of the present application; Figure 11 is an exploded structure schematic view of the quick dismounting mechanism of the present application.

[0026] Mark No. : 1, first detection trolley; 2, second detection trolley; 3, first folding guide rail; 4, folding mechanism; 401, first folding sliding block; 402, quarter rotation base; 403, quarter rotation disc; 404, second folding sliding block; 405, second folding guide rail; 406, mounting folding plate; 407, fixing bolt; 5, splicing mechanism; 501, mounting folding rod; 502, L-shaped folding plate; 503, positioning insert plate; 504, spring shell; 505, cylindrical spring; 506, rack insert rod; 507, folding plate insert slot; 6, limiting mechanism; 601, torsion spring seat shell; 602, folding rotary rod; 603, rotary rod torsion spring; 604, rotary rod gear; 605, folding plate limiting plate; 606, folding plate limiting slot; 7, quick release mechanism; 701, mounting base shell; 702, quick release slot hole; 703, quick release rotary rod; 704, synchronous connecting rod; 705, adjusting rotary rod; 706, adjusting bolt; 707, three-dimensional laser camera. DETAILED DESCRIPTION

[0027] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not intended to limit the present application.

[0028] As Figures 1-11As shown, the urban rail transit signal detection device of the embodiment comprises a first detection trolley 1 and a second detection trolley 2, and the top of the first detection trolley 1 and the top of the second detection trolley 2 are fixed with first folding guide rails 3; the top of the two first folding guide rails 3 is provided with a folding mechanism 4 capable of making the track detection vehicle contract into a compact shape; the folding mechanism 4 comprises two first folding sliding blocks 401 slidingly installed outside the two first folding guide rails 3, the top of the four first folding sliding blocks 401 is fixed with four quarter rotating bases 402, four quarter rotating discs 403 are rotatably installed between the four quarter rotating bases 402, the top of the four quarter rotating discs 403 is fixed with second folding sliding blocks 404, the inside of the four second folding sliding blocks 404 is slidingly installed with two second folding guide rails 405, the top of the two second folding sliding blocks 404 is fixed with mounting folding plates 406, and the two ends of the mounting folding plates 406 are threadedly installed with fixed bolts 407 penetrating one end and extending into the inside of the first folding guide rail 3; the operator expands the track detection vehicle to the working state, starts the power system of the first detection trolley 1 and the second detection trolley 2, and makes it slowly run along the urban rail, when the track detection vehicle is expanded, the two second folding guide rails 405 and the mounting folding plates 406 are rotated by hand, so that the four second folding sliding blocks 404 drive the four quarter rotating discs 403 to rotate through the four quarter rotating bases 402, so that the second folding guide rail 405 is in a cross state with the first folding guide rail 3, the two first folding guide rails 3 and the second folding guide rails 405 are separated by hand respectively, so that the two first folding guide rails 3 and the second folding guide rails 405 are in a cross state, the fixed bolts 407 are rotated by tools, the expanded first folding guide rails 3 and the second folding guide rails 405 can be fixed through the fixed bolts 407, and then the track detection vehicle is quickly assembled, when the track detection vehicle is folded, the fixed bolts 407 are loosened, the first folding guide rails 3 move stably on the second folding guide rails 405 through the first folding sliding blocks 401 and the second folding sliding blocks 404, the second folding guide rails 405 move stably on the first folding guide rails 3 through the first folding sliding blocks 401 and the second folding sliding blocks 404, and then the track detection vehicle is folded, when the four quarter rotating discs 403 and the four quarter rotating bases 402 are spliced, the four quarter rotating discs 403 are rotated through the four quarter rotating bases 402, and then the track detection vehicle is contracted into a compact shape.

[0029] As Figures 4-9As shown, the top end of the folding mechanism 4 is provided with a splicing mechanism 5 to ensure accuracy and stability during splicing, the splicing mechanism 5 comprises two mounting folding rods 501 rotatably mounted on the top end of the two mounting folding plates 406 respectively, the top end of each of the two mounting folding rods 501 is rotatably provided with an L-shaped folding plate 502, the top end of each of the two L-shaped folding plates 502 is fixedly provided with a positioning plug plate 503, one side of the mounting folding rod 501 is fixedly provided with a spring shell 504, the inner wall of the spring shell 504 is fixedly provided with a cylindrical spring 505, one end of the cylindrical spring 505 is fixedly provided with a rack plug rod 506, the bottom end of the L-shaped folding plate 502 is provided with a folding plate slot 507 which is hingedly connected with the rack plug rod 506, after the folding mechanism 4 is unfolded, the mounting folding rods 501 on both sides of the mounting folding plate 406 are rotated by ninety degrees respectively, then the positioning plug plate 503 is rotated by ninety degrees through the mounting folding rod 501, the two positioning plug plates 503 are spliced, the cylindrical spring 505 drives the rack plug rod 506 to be inserted into the inside of the folding plate slot 507, so that the two rack plug rods 506 fix the two positioning plug plates 503 through the folding plate slot 507, and the two mounting folding rods 501 are connected and fixed at the same time, when the splicing mechanism 5 is folded, the two rack plug rods 506 are pressed back into the inside of the spring shell 504 by hand, the mounting folding rod 501 and the positioning plug plate 503 are folded by ninety degrees respectively, so that the mounting folding rod 501 and the positioning plug plate 503 are on the same horizontal line with the mounting folding plate 406.

[0030] As shown in Figure 6 and Figure 7 the other side of the top end of the folding mechanism 4 is provided with a limiting mechanism 6 to avoid interference with the folding operation of the track detection vehicle, the limiting mechanism 6 comprises two torsional spring seat shells 601 fixedly provided on the other side of the top end of the two mounting folding plates 406, a folding rotary rod 602 is rotatably mounted in the inside of the torsional spring seat shell 601, a rotary rod torsional spring 603 is fixedly provided between one end of the folding rotary rod 602 and the torsional spring seat shell 601, a rotary rod gear 604 is fixedly provided on the outside of the folding rotary rod 602, the rotary rod gear 604 is hingedly connected with one end of the rack plug rod 506, two folding limiting plates 605 are fixedly provided on both sides of the rotary rod gear 604, a folding limiting slot 606 which is hingedly connected with the folding limiting plate 605 is provided at the bottom end of the L-shaped folding plate 502, usually the rotary rod torsional spring 603 drives the folding limiting plate 605 on the folding rotary rod 602 to be parallelly attached with the mounting folding plate 406, after the mounting folding rod 501 and the positioning plug plate 503 are on the same horizontal line with the mounting folding plate 406, the rack plug rod 506 is loosened, when the cylindrical spring 505 drives the rack plug rod 506 to extend outwardly from the spring shell 504, the rack plug rod 506 drives the rotary rod gear 604 and the folding rotary rod 602 to rotate by ninety degrees, so that the folding rotary rod 602 drives the folding limiting plate 605 to fix the L-shaped folding plate 502 through the folding limiting slot 606, and the folded mounting folding rod 501 is fixed at the same time.

[0031] As Figure 10 And Figure 11 As shown, the top end of the splicing mechanism 5 is provided with a quick release mechanism 7 capable of quickly disassembling the detection module, the quick release mechanism 7 includes a mounting base shell 701 fitted on the top end of the positioning plug plate 503, the top end of the positioning plug plate 503 is provided with four quick release slots 702, the inside of the mounting base shell 701 is rotatably provided with four quick release rotating rods 703, the top end of the mounting base shell 701 is fixedly provided with a three-dimensional laser camera 707, three synchronous connecting rods 704 are rotatably arranged between the four quick release rotating rods 703, an adjusting rotating rod 705 is rotatably arranged on the inner bottom wall of the mounting base shell 701, the inside of the adjusting rotating rod 705 is screwedly provided with an adjusting bolt 706 with one end penetrating and extending to the outside of the mounting base shell 701, the outside of the adjusting bolt 706 is rotatably connected with one of the synchronous connecting rods 704, the inner bottom wall of the mounting base shell 701 is provided with a fixing hole in embedded connection with the adjusting bolt 706, the three-dimensional laser camera 707 is connected with the quick release slots 702 of the positioning plug plate 503 through the quick release rotating rods 703 of the mounting base shell 701, the adjusting bolt 706 is manually rotated and moved, the adjusting rotating rod 705 is driven to rotate by the adjusting bolt 706, the four quick release rotating rods 703 are driven to rotate ninety degrees by the three synchronous connecting rods 704, so that the quick release rotating rods 703 are fixedly connected with the positioning plug plate 503, the adjusting bolt 706 is manually rotated so as to extend into the fixing hole, the adjusting bolt 706 is fixed, and the three-dimensional laser camera 707 is quickly disassembled, the traffic signal conditions around the city track are photographed by the three-dimensional laser camera 707, the photographed data is transmitted to the computer after returning, the photographed data is processed and analyzed according to the predetermined algorithm by the computer, and once the abnormal traffic signal is found, the software interface pops up a warning window to display detailed information.

[0032] The working principle of the embodiment is as follows: the operator unfolds the track detection vehicle to the working state, rotates the two second folding guide rails 405 and the mounting folding plate 406 by hand, drives the four fourth folding sliders 404 to drive the four fourth rotating discs 403 to rotate through the four fourth rotating bases 402, so that the second folding guide rail 405 is in a cross state with the first folding guide rail 3, separates the two first folding guide rails 3 and the second folding guide rail 405 by hand respectively, so that the two first folding guide rails 3 and the second folding guide rail 405 are in a cross state, rotates the fixing bolt 407 with a tool, fixes the unfolded first folding guide rail 3 and the second folding guide rail 405 through the fixing bolt 407, and then quickly assembles the track detection vehicle. After the folding mechanism 4 is unfolded, the mounting folding rods 501 on both sides of the mounting folding plate 406 are rotated by ninety degrees, then the positioning plug plates 503 are rotated by ninety degrees through the mounting folding rods 501, the two positioning plug plates 503 are spliced, the cylindrical springs 505 drive the rack inserting rods 506 to be inserted into the folding plate inserting grooves 507, so that the two rack inserting rods 506 fix the two positioning plug plates 503 through the folding plate inserting grooves 507, and the two mounting folding rods 501 are connected and fixed at the same time. The three-dimensional laser camera 707 is connected to the quick release slot hole 702 of the positioning plug plate 503 through the quick release rotating rod 703 of the mounting base shell 701, the moving adjusting bolt 706 is rotated by hand, the adjusting rotating rod 705 is driven to rotate through the adjusting bolt 706, the adjusting rotating rod 705 drives the four quick release rotating rods 703 to rotate by ninety degrees through the three synchronous connecting rods 704, so that the quick release rotating rod 703 is fixedly connected with the positioning plug plate 503, the unfolding and assembly of the track detection vehicle are completed, the power system of the first detection trolley 1 and the second detection trolley 2 is started, and the track detection vehicle slowly drives along the urban track. The three-dimensional laser camera 707 photographs the traffic signal conditions on both sides of the track, and transmits the photographed data to the computer after returning. The computer processes and analyzes the photographed data according to a predetermined algorithm. Once an abnormal traffic signal is found, a warning window is popped up on the software interface to display detailed information. When the track detection vehicle is transferred, the adjusting bolt 706 is loosened by hand, then the adjusting rotating rod 705 is returned to the original position, the three-dimensional laser camera 707 is removed, the two rack inserting rods 506 are pressed back into the spring shell 504 by hand, the mounting folding rods 501 and the positioning plug plates 503 are folded by ninety degrees respectively, so that the mounting folding rods 501 and the positioning plug plates 503 are on the same horizontal line as the mounting folding plate 406. At this time, the rotating rod torsional spring 603 drives the folding plate limiting plate 605 on the folding rotating rod 602 to be parallel to the mounting folding plate 406. When the mounting folding rods 501 and the positioning plug plates 503 are on the same horizontal line as the mounting folding plate 406, the rack inserting rod 506 is loosened, and when the cylindrical spring 505 drives the rack inserting rod 506 to extend outward from the spring shell 504, the rack inserting rod 506 drives the rotating rod gear 604 and the folding rotating rod 602 to rotate by ninety degrees,The folding rotating rod 602 drives the folding limiting plate 605 to fix the L-shaped folding plate 502 through the folding limiting groove 606, and fixes the folded mounting folding rod 501. The fixing bolts 407 are loosened, the first folding guide rail 3 moves smoothly on the second folding guide rail 405 through the first folding sliding block 401 and the second folding sliding block 404, the second folding guide rail 405 moves smoothly on the first folding guide rail 3 through the first folding sliding block 401 and the second folding sliding block 404, and then the track detection vehicle is folded. When the four quarter rotating discs 403 and the four quarter rotating bases 402 are spliced, the four quarter rotating discs 403 are rotated through the four quarter rotating bases 402, and then the track detection vehicle is conveniently shrunk into a compact shape. When the track detection vehicle is folded, the fixing bolts 407 are loosened, the first folding guide rail 3 moves smoothly on the second folding guide rail 405 through the first folding sliding block 401 and the second folding sliding block 404, the second folding guide rail 405 moves smoothly on the first folding guide rail 3 through the first folding sliding block 401 and the second folding sliding block 404, and then the track detection vehicle is folded. When the four quarter rotating discs 403 and the four quarter rotating bases 402 are spliced, the four quarter rotating discs 403 are rotated through the four quarter rotating bases 402, and then the track detection vehicle is conveniently shrunk into a compact shape. The track detection vehicle is conveniently transferred and transported.

[0033] The above merely describes the preferred embodiments of the present application, but not for limiting the protection scope of the present application.

Claims

1. A signal detection device for urban rail transit, comprising a first detection trolley (1) and a second detection trolley (2), characterized in that: The top of the first detection trolley (1) and the second detection trolley (2) are both fixed with a first folding guide rail (3); The top ends of the two first folding guide rails (3) are provided with folding mechanisms (4) that enable the track inspection vehicle to retract into a compact shape. The top side of the folding mechanism (4) is provided with a splicing mechanism (5) to ensure accuracy and stability during the splicing process, and the other side of the top of the folding mechanism (4) is provided with a limiting mechanism (6) to avoid interfering with the folding operation of the track inspection vehicle. The splicing mechanism (5) is equipped with a quick-release mechanism (7) at its top, which enables the detection module to be quickly assembled and disassembled.

2. The urban rail transit signal detection device according to claim 1, characterized in that, The folding mechanism (4) includes two first folding sliders (401) slidably mounted outside the two first folding guide rails (3), and four quarter rotating bases (402) are fixed at the top of each of the four first folding sliders (401). Four quarter rotating disks (403) are rotatably mounted between the four quarter rotating bases (402), and a second folding slider (404) is fixed at the top of each of the four quarter rotating disks (403).

3. The urban rail transit signal detection device according to claim 2, characterized in that, Two second folding guide rails (405) are slidably installed inside the four second folding sliders (404). The top of each of the two second folding sliders (404) is fixed with a mounting folding plate (406). Both ends of the mounting folding plate (406) are threaded with a fixing bolt (407) that passes through and extends into the interior of the first folding guide rail (3).

4. The urban rail transit signal detection device according to claim 3, characterized in that, The splicing mechanism (5) includes mounting folding rods (501) that are rotatably mounted on the top of one side of two mounting folding plates (406). Each of the top of one side of the two mounting folding rods (501) is rotatably mounted with an L-shaped folding plate (502), and each of the tops of the two L-shaped folding plates (502) is fixed with a positioning insert plate (503).

5. The urban rail transit signal detection device according to claim 4, characterized in that, A spring shell (504) is fixed to one side of the mounting folding rod (501), a columnar spring (505) is fixed to the inner wall of the spring shell (504), a rack insert (506) is fixed to one end of the columnar spring (505), and a folding plate slot (507) is provided at the bottom end of the L-shaped folding plate (502) to engage with the rack insert (506).

6. The urban rail transit signal detection device according to claim 4, characterized in that, The limiting mechanism (6) includes a torsion spring housing (601) fixed to the top of the other side of the two mounting folding plates (406). A folding rod (602) is rotatably mounted inside the torsion spring housing (601). A rod torsion spring (603) is fixed between one end of the folding rod (602) and the torsion spring housing (601).

7. The urban rail transit signal detection device according to claim 6, characterized in that, The folding lever (602) is fixed with a lever gear (604) on the outside. The outside of the lever gear (604) is meshed with one end of the rack insert (506). Folding plate limiting plates (605) are fixed on both sides of the lever gear (604). The bottom end of the L-shaped folding plate (502) is provided with a folding plate limiting groove (606) that is fitted and connected with the folding plate limiting plate (605).

8. The urban rail transit signal detection device according to claim 4, characterized in that, The quick-release mechanism (7) includes a mounting base shell (701) that fits against the top of the positioning insert plate (503). The top of the positioning insert plate (503) is provided with four quick-release slots (702). Four quick-release rotating rods (703) are rotatably installed inside the mounting base shell (701). A three-dimensional laser camera (707) is fixed to the top of the mounting base shell (701).

9. The urban rail transit signal detection device according to claim 8, characterized in that, Three synchronous connecting rods (704) are rotatably installed between the four quick-release rotating rods (703). An adjusting rod (705) is rotatably installed on the inner bottom wall of the mounting base shell (701). An adjusting bolt (706) with one end penetrating through and extending to the outside of the mounting base shell (701) is installed on the internal thread of the adjusting rod (705). The outside of the adjusting bolt (706) is rotatably connected to a synchronous connecting rod (704). The inner bottom wall of the mounting base shell (701) is provided with a fixing hole that engages with the adjusting bolt (706).

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