U-shaped beam wall-mounted pipeline type ballastless track maintenance system for track traffic

Abstract

The invention discloses a rail transit U-shaped beam wall-mounted pipeline type ballastless track maintenance system which comprises a plurality of telescopic supporting units arranged at intervals in the length direction of a ballastless track, a plurality of maintenance spraying pipes arranged side by side are installed between the telescopic supporting units, the maintenance spraying pipes are located above the ballastless track, and the telescopic supporting units are connected with the maintenance spraying pipes. The two ends of each maintenance spraying pipe communicate with the water inlet pipe system and the communicating pipe system correspondingly, the inlet end of the water inlet pipe system communicates with the water storage tank through the pressure water pump, and the telescopic supporting units stretch across the two sides of the U-shaped beam. The ballastless track can be effectively subjected to spraying maintenance operation, the purpose of maintaining different areas in the transverse direction of the ballastless track is achieved, spraying maintenance sufficiency is ensured, evaporation of local moisture of the ballastless track is made up, the situation of excessive water supplementing is avoided, and the purpose of overall moving can be achieved. The device is suitable for the technical field of watering maintenance of the ballastless track on the U-shaped beam.

Description

Technical Field

[0001] The invention belongs to the technical field of ballastless track construction, and in particular relates to a rail transit U-beam wall-mounted pipeline type ballastless track maintenance system. Background Art

[0002] In rail transit construction, local track segments need to be laid on bridges. The commonly used construction method is to use U-shaped beams as the foundation, pour concrete for ballastless tracks on the bottom end face of the U-shaped beams, and install sleepers and rails on the ballastless tracks after pouring and curing. In order to ensure the quality of the ballastless track, the curing of the poured concrete needs to be highly valued within 12 hours after the concrete is poured. After the initial setting of the concrete, the concrete is cured in time. Generally, a curing cloth is used to cover the upper end of the concrete, and then watering is carried out, that is, water is sprinkled on the surface of the curing part, thereby avoiding the evaporation of water on the concrete surface too quickly and preventing the concrete surface from cracking. Usually, the curing period of watering curing is not less than 7 days, so as to ensure that the concrete has completed the initial setting. After the initial setting of the concrete, watering curing is continued, and the duration of this stage is not less than 7 days. The number of watering times per day can keep the concrete surface in a moist state. However, during the entire watering and curing process, due to the influence of external factors (such as light, temperature difference, etc.) and concrete factors (concrete thickness, etc.), the local water evaporation of the ballastless track deviates. In order to make up for the water loss in this area, it is necessary to increase the amount of watering, which inevitably leads to excessive water replenishment in other areas. Therefore, manual targeted water replenishment is required, resulting in an increase in workload. In addition, the existing watering equipment has poor mobility. When switching between different sections of the ballastless track, it cannot be moved as a whole, which increases the amount of transportation work. Summary of the invention

[0003] The present invention provides a rail transit U-beam wall-mounted pipeline ballastless track maintenance system, which is used for performing spray maintenance operations on the ballastless track, realizing maintenance of different areas of the ballastless track in the transverse direction, ensuring the adequacy of the spray maintenance, compensating for the evaporation of local water on the ballastless track, avoiding excessive water replenishment, and achieving the purpose of overall relocation.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is as follows: A rail transit U-beam wall-mounted pipeline-type ballastless track maintenance system comprises a plurality of telescopic support units arranged at intervals along the length direction of the ballastless track, a plurality of maintenance spray pipes arranged side by side are installed between the telescopic support units, the maintenance spray pipes are located above the ballastless track, the two ends of each maintenance spray pipe are respectively connected to a water inlet pipe system and a connecting pipe system, the inlet end of the water inlet pipe system is connected to a water storage tank via a pressure water pump, and each of the telescopic support units spans both sides of the U-beam.

[0005] Furthermore, the telescopic support unit includes a scissors-type telescopic frame laterally arranged above the ballastless track, each of the maintenance spray pipes is connected to the corresponding part of the scissors-type telescopic frame, and plate-like assembly seats are respectively arranged on both sides of the scissors-type telescopic frame. Each of the plate-like assembly seats is detachably connected to the corresponding end of the scissors-type telescopic frame through an adjustable adapter mechanism, and a self-pressing running mechanism is installed on the plate-like assembly seat, and the self-pressing running mechanism is rolled on the top end surface of the corresponding side of the U-beam.

[0006] Furthermore, the cross-shear rod group includes a plurality of cross-shear rod groups connected in sequence, and adapter assemblies respectively connected at both ends of these cross-shear rod groups; the cross-shear rod group includes a first hinged rod and a second hinged rod hinged in a scissor-like manner through a hinge axis, and the end of the first hinged rod in two adjacent cross-shear rod groups is hinged to the end of the corresponding second hinged rod; the adapter assembly includes a third hinged rod and a fourth hinged rod, both of which are hinged on the adapter seat at their ends close to each other, the end of the third hinged rod away from the adapter seat is hinged to the end of the corresponding first hinged rod or the second hinged rod, and the end of the fourth hinged rod away from the adapter seat is hinged to the end of the corresponding second hinged rod or the first hinged rod, and the adapter seat is detachably connected to the adjustable adapter mechanism.

[0007] Furthermore, an adapter is installed on each of the hinged shafts, and the adapter is connected to the corresponding maintenance spray pipe; the adapter includes a first fixing sleeve and a second fixing sleeve with two ends of the adapter elbow, and a first locking hole and a second locking hole are respectively opened on the first fixing sleeve and the second fixing sleeve, and the first fixing sleeve and the second fixing sleeve are respectively mounted on the hinged shaft and the maintenance spray pipe, and the first locking bolt and the second locking bolt are respectively threadedly connected to the first fixing sleeve and the second fixing sleeve, and the ends of the first locking bolt and the second locking bolt are respectively locked on the outer peripheral wall of the hinged shaft and the maintenance spray pipe.

[0008] Furthermore, the plate-like assembly seat includes a laterally arranged plate-like seat body, a first connecting ear is constructed at one end of the plate-like seat body extending outward, a first strip hole extending along the length direction of the plate-like seat body is installed on the plate-like seat body, and the plate-like seat body is connected to the self-pressing running mechanism through the first strip hole and the first connecting ear.

[0009] Furthermore, the self-pressurized running mechanism includes a mounting wheel seat arranged below the plate-like seat body, a running wheel and a brake part for braking are installed on the mounting wheel seat, a vertical column is constructed at the upper end of the mounting wheel seat, the upper end of the vertical column passes through the plate-like seat body through a first strip hole, a first connecting seat is movably mounted on the vertical column, a transversely arranged first adjusting screw is rotatably connected to the first connecting seat via a first connecting ear, and the first adjusting screw is threadedly connected to the first connecting ear, an adjusting cap is movably mounted on the upper end of the vertical column, a connecting spring is arranged outside the vertical column and between the adjusting cap and the first connecting seat, a vertically arranged second adjusting screw is rotatably connected to the adjusting cap, and the lower end of the second adjusting screw is threadedly connected to the vertical column.

[0010] Furthermore, a second connecting ear is constructed at an end of the plate-like seat body away from the first connecting ear, and a second strip hole and a transmission hole are respectively opened on the plate-like seat body and the second connecting ear, and the second strip hole extends along the length direction of the plate-like seat body; the adjustable adapter mechanism includes a vertical threaded rod passing through the plate-like seat body through the second strip hole, the vertical threaded rod is threadedly connected to the adapter sleeve on the second connecting seat, the adapter sleeve passes through the second strip hole, and a connecting nut is externally threadedly connected to the adapter sleeve, the second connecting seat and the connecting nut are respectively arranged at the upper and lower ends of the plate-like seat body, and a third connecting seat is rotatably connected to the lower end of the vertical threaded rod, and a connecting screw is threadedly connected to the third connecting seat, the connecting screw is detachably connected to the corresponding end of the scissor-type telescopic frame, the transverse driving member is detachably connected to the second connecting ear, and the driving end of the transverse driving member is connected to the second connecting seat.

[0011] Furthermore, a lateral limiting mechanism is installed at the lower end of the plate-like seat body, and the lateral limiting mechanism includes an adapter plate connected to the lower end of the plate-like seat body through a connecting screw, a locking nut is threadedly connected to the connecting screw, and a third strip hole extending along its length direction is opened on the adapter plate, one end of the limiting screw passes through the third strip hole, and two fastening nuts are threadedly connected to the limiting screw, and the two fastening nuts are locked to two opposite end surfaces of the adapter plate, and a limiting seat is fixed to one end of the limiting screw close to the upper edge side wall of the U-shaped beam, and the limiting seat is elastically pressed on the upper edge side wall.

[0012] Furthermore, the water inlet pipe system includes a distribution pipe connected to a water inlet main pipe, the water inlet main pipe is connected to the outlet end of a pressure water pump, and a plurality of first joint pipes are connected to the distribution pipe at intervals along its length direction, each of the first joint pipes is connected to one end of a corresponding maintenance spray pipe; the connecting pipe system includes a conducting pipe connected to a plurality of second joint pipes, each of the second joint pipes is connected to the other end of a corresponding maintenance spray pipe.

[0013] Furthermore, the maintenance spray pipe includes a plurality of spray branches connected in sequence, each of the spray branches includes a hose body extending along the length direction of the ballastless track, a plurality of spray holes are opened on the peripheral wall of the hose body facing the ballastless track, a first quick connector and a second quick connector are respectively constructed at both ends of the hose body, the first quick connector and the second quick connector of two adjacent hose bodies close to each other are detachably connected, and an operating gear ring is constructed on the first quick connector.

[0014] Due to the adoption of the above structure, the technical progress achieved by the present invention compared with the prior art is that: the present invention controls the telescopic support unit to make all the maintenance spray pipes approach or move away from each other, and can also adjust the lateral movement of these maintenance spray pipes along the ballastless track, so that these maintenance spray pipes move to the middle or one side of the ballastless track, thereby achieving the purpose of fully spraying and maintaining the ballastless track. During the maintenance process, the pressure water pump presses the water in the water storage tank into the water inlet pipe system, and then evenly distributes it to each maintenance spray pipe, and finally sprays it out from the maintenance spray pipe toward the ballastless track. The connecting pipe system of the present invention connects one end of each maintenance spray pipe away from the water inlet pipe system, and control valves can be installed at both ends of each maintenance spray pipe respectively to control the spray amount of each maintenance spray pipe. When it is necessary to switch the spray maintenance of different sections of the ballastless track, the telescopic support unit located at the end is pulled, so that under the connection of the maintenance spray pipe, the other telescopic support units move together with it, so as to achieve the purpose of overall movement. In summary, the present invention can effectively perform spray maintenance operations on the ballastless track, achieve the purpose of maintaining different areas of the ballastless track in the horizontal direction, ensure the adequacy of the spray maintenance, compensate for the evaporation of local moisture on the ballastless track, avoid excessive water replenishment, and achieve the purpose of overall relocation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0016] In the attached picture: Figure 1 It is a structural schematic diagram of an embodiment of the present invention; Figure 2 This is a schematic diagram of a structure in which a single telescopic support unit is installed on a U-shaped beam according to an embodiment of the present invention; Figure 3 for Figure 2 A front view of the structure shown; Figure 4 This is a schematic structural diagram of a U-shaped beam according to an embodiment of the present invention; Figure 5It is a structural schematic diagram of the connection between the plate-shaped assembly seat, the adjustable transfer mechanism, the self-pressing running mechanism and the lateral limiting mechanism in the telescopic support unit of the embodiment of the present invention; Figure 6 It is a schematic structural diagram of a plate-shaped assembly seat in a telescopic support unit according to an embodiment of the present invention; Figure 7 for Figure 5 A front view of the structure shown; Figure 8 It is a structural schematic diagram of the connection between the plate-shaped assembly seat and the partially sectioned self-pressing running mechanism according to an embodiment of the present invention; Fig. 9 It is a structural schematic diagram of the connection between the cross-scissor type telescopic frame and multiple maintenance spray pipes in the telescopic support unit of the embodiment of the present invention; Fig.10 It is a schematic structural diagram of a cross-scissor type telescopic frame in a telescopic support unit according to an embodiment of the present invention; Fig.11 This is a schematic diagram of the structure of a maintenance spray pipe according to an embodiment of the present invention; Fig.12 It is a schematic structural diagram of an adapter according to an embodiment of the present invention; Fig.13 This is a schematic diagram of the structure of the water inlet pipe system according to an embodiment of the present invention; Fig.14 It is a schematic diagram of the structure of the connecting pipe system according to an embodiment of the present invention.

[0017] Labeled parts: 100-U-shaped beam, 101-beam body, 102-bottom end face, 103-top end face, 104-upper edge side wall, 200-plate assembly seat, 201-plate seat body, 202-second strip hole, 203-first strip hole, 204-first connecting ear, 205-transmission hole, 206-second connecting ear, 300-self-pressing running mechanism, 301-mounting wheel seat, 302-running wheel, 303-brake part, 304-first connecting seat, 3 05-vertical column, 306-adjusting cap, 307-connecting spring, 308-second adjusting screw, 309-first adjusting screw, 400-lateral limiting mechanism, 401-adapter plate, 402-third strip hole, 403-connecting screw, 404-locking nut, 405-limiting screw, 406-limiting seat, 407-fastening nut, 500-adjustable adapter mechanism, 501-vertical threaded rod, 502-second connecting seat, 503-adapter sleeve, 504- Connecting nut, 505-third connecting seat, 506-adapter screw, 600-horizontal electric cylinder, 601-cylinder body, 602-cylinder rod, 700-cross-type telescopic frame, 701-first hinged rod, 702-second hinged rod, 703-hinge shaft, 704-third hinged rod, 705-fourth hinged rod, 706-adapter seat, 707-internal thread sleeve, 800-maintenance spray pipe, 801-hose body, 802-first quick connector, 803-second quick connector Head, 804-operating gear ring, 900-water inlet pipe system, 901-distribution pipe, 902-first connecting pipe, 903-third quick connector, 904-water inlet main pipe, 1000-connecting pipe system, 1001-conducting pipe, 1002-second connecting pipe, 1003-fourth quick connector, 1100-adapter, 1101-adapter elbow, 1102-first fixing sleeve, 1103-first locking hole, 1104-second fixing sleeve, 1105-second locking hole. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0019] The present invention discloses a rail transit U-beam wall-mounted pipeline type ballastless track maintenance system, such as Figure 1-14As shown, it includes a water inlet pipe system 900, a connecting pipe system 1000, a pressure water pump, a water storage tank, a plurality of telescopic support units and a plurality of maintenance spray pipes 800. The U-shaped beam 100 includes a beam body 101 in a U-shaped form, the ends of the upper ends of both sides of the beam body 101 are top end faces 103, and the end faces of the concave parts of the beam body 101 are bottom end faces 102. Upper edges extending inward are respectively formed at the upper ends of both sides of the beam body 101. The above-mentioned multiple telescopic support units are arranged at intervals along the length direction of the ballastless track, and the above-mentioned multiple maintenance spray pipes 800 are arranged side by side along the transverse direction of the ballastless track, and these maintenance spray pipes 800 are installed between these telescopic support units. The ballastless track is cast on the bottom end surface 102 of the U-shaped beam 100. These maintenance spray pipes 800 are located above the ballastless track. The two ends of each maintenance spray pipe 800 are respectively connected to the water inlet pipe system 900 and the connecting pipe system 1000. The inlet end of the water inlet pipe system 900 is connected to the water storage tank through a pressure water pump. Each telescopic support unit spans across the two sides of the U-shaped beam 100. The pressure water pump and the water storage tank of the present invention are both installed on a traveling vehicle, which is located on one side of the upper end of the U-shaped beam 100. A telescopic arm (generally a multi-stage cylinder) is installed on the traveling vehicle. The telescopic arm is connected to the telescopic support unit located at one end, and then when the traveling vehicle is operated to travel along the length direction of the ballastless track, the entire maintenance system is driven to move in the adjacent maintenance section. The working principle and advantages of the present invention are: the present invention controls the telescopic support unit to make all the maintenance spray pipes 800 approach or move away from each other, and can also adjust the lateral movement of these maintenance spray pipes 800 along the ballastless track, so that these maintenance spray pipes 800 move to the middle or one side of the ballastless track, thereby achieving the purpose of fully spraying and maintaining the ballastless track. During the maintenance process, the pressure water pump presses the water in the water storage tank into the water inlet pipe system 900, and then evenly distributes it to each maintenance spray pipe 800, and finally sprays it out from the maintenance spray pipe 800 toward the ballastless track. The connecting pipe system 1000 of the present invention connects the ends of each maintenance spray pipe 800 away from the water inlet pipe system 900, and control valves can be installed at both ends of each maintenance spray pipe 800 to control the spraying amount of each maintenance spray pipe 800. When it is necessary to switch between different sections of the ballastless track for spray maintenance, the telescopic support unit at the end is pulled, so that under the connection of the maintenance spray pipe 800, the other telescopic support units move together to achieve the purpose of overall movement. In summary, the present invention can effectively perform spray maintenance operations on the ballastless track, achieve the purpose of maintaining different areas of the ballastless track in the horizontal direction, ensure the adequacy of spray maintenance, compensate for the evaporation of local water on the ballastless track, and avoid excessive water replenishment, and can achieve the purpose of overall movement.

[0020] As a preferred embodiment of the present invention, Figure 1-3As shown, the telescopic support unit includes a cross-scissor telescopic frame 700, two plate-shaped assembly seats 200, two adjustable transfer mechanisms 500 and two self-pressing running mechanisms 300. Among them, the cross-scissor telescopic frame 700 is horizontally arranged above the ballastless track, and each maintenance spray pipe 800 is connected to the corresponding part of the cross-scissor telescopic frame 700. The two plate-shaped assembly seats 200 of this embodiment are respectively arranged on both sides of the cross-scissor telescopic frame 700, and the two adjustable transfer mechanisms 500 are respectively installed on the two plate-shaped assembly seats 200, and each plate-shaped assembly seat 200 is detachably connected to the corresponding end of the cross-scissor telescopic frame 700 through the adjustable transfer mechanism 500. The two self-pressing running mechanisms 300 are respectively installed on the two plate-shaped assembly seats 200, and the two self-pressing running mechanisms 300 are respectively rolled on the two top end surfaces 103 of the U-shaped beam 100. The working principle and advantages of this embodiment are as follows: this embodiment adjusts the distance between the two adjustable adapter mechanisms 500, thereby adjusting the telescopic amount of the cross-scissor telescopic frame 700, thereby adjusting the spacing between the maintenance spray pipes 800; and by adjusting the synchronous transverse displacement of the two adjustable adapter mechanisms 500, the lateral position of the cross-scissor telescopic frame 700 above the ballastless track is adjusted, thereby achieving the purpose of targeted spray maintenance at different lateral positions of the ballastless track. This embodiment adjusts the vertical position of one or two adjustable adapter mechanisms 500 and the corresponding plate-shaped assembly seat 200, thereby achieving unilateral tilting of the cross-scissor telescopic frame 700 or changing the vertical position of the cross-scissor telescopic frame 700, so that the maintenance spray pipe 800 connected to the cross-scissor telescopic frame 700 is tilted for spraying, or the spraying height of the maintenance spray pipe 800 is changed, thereby avoiding the appearance of dead corners and achieving the purpose of sufficient spraying and humidification.

[0021] As a preferred embodiment of the present invention, Fig. 9 , 10As shown in Figures 1 and 12, the cross-shear telescopic frame 700 includes two adapter assemblies and a plurality of cross-shear rod groups. Among them, these cross-shear rod groups are connected together in sequence, and the two adapter assemblies are respectively connected to the two cross-shear rod groups located at both ends. The cross-shear rod group of this embodiment includes a first hinged rod 701 and a second hinged rod 702, and the middle part of the first hinged rod 701 and the middle part of the second hinged rod 702 are hinged in a scissor-like manner through a hinge shaft 703, and the end of the first hinged rod 701 in two adjacent cross-shear rod groups is hinged to the end of the corresponding second hinged rod 702. The adapter assembly of this embodiment includes a third hinged rod 704, a fourth hinged rod 705 and an adapter seat 706, the ends of the third hinged rod 704 and the fourth hinged rod 705 that are close to each other are hinged on the adapter seat 706, the end of the third hinged rod 704 away from the adapter seat 706 is hinged to the end of the corresponding first hinged rod 701 or the second hinged rod 702, the end of the fourth hinged rod 705 away from the adapter seat 706 is hinged to the end of the corresponding second hinged rod 702 or the first hinged rod 701, an internal threaded sleeve 707 is constructed on the adapter seat 706, and the adapter seat 706 is detachably connected to the adjustable adapter mechanism 500 through the internal threaded sleeve 707. In this embodiment, an adapter 1100 is installed on each hinge shaft 703, and the adapter 1100 is connected to the corresponding maintenance spray pipe 800. The specific structure of the adapter 1100 is that the adapter 1100 includes an adapter elbow 1101, a first fixing sleeve 1102 and a second fixing sleeve 1104. The first fixing sleeve 1102 and the second fixing sleeve 1104 are respectively constructed at both ends of the adapter elbow 1101, a first locking hole 1103 is opened on the first fixing sleeve 1102, and a second locking hole 1104 is opened on the second fixing sleeve 1104. 05, the first fixing sleeve 1102 is sleeved on the outside of the hinge shaft 703, the second fixing sleeve 1104 is sleeved on the outside of the maintenance spray pipe 800, the first locking bolt is threadedly connected to the first fixing sleeve 1102 through the first locking hole 1103, and the first locking bolt is tightened to fix the first fixing sleeve 1102 to the hinge shaft 703; the second locking bolt is threadedly connected to the second fixing sleeve 1104 through the second locking hole 1105, and the second locking bolt is tightened to fix the second fixing sleeve 1104 to the maintenance spray pipe 800. The working principle and advantage of this embodiment are: this embodiment adjusts the distance between the two adjustable switching mechanisms 500 so that the two switching components are close to or away from each other, thereby driving all the cross-shear rod groups to open or close a certain angle synchronously, so that the spacing between adjacent hinge shafts 703 changes, so that the spacing between adjacent maintenance spray pipes 800 changes accordingly.When the concrete is completely set and the ballastless track no longer needs spraying maintenance, the cross-scissor-type telescopic frame 700 is controlled to retract, so that the angle between the first hinged rod 701 and the second hinged rod 702 of the cross-shear rod group becomes smaller, the degree of tilting of the ends of the first hinged rod 701 and the second hinged rod 702 increases, and the maintenance spray pipe 800 is located at the hinge of the first hinged rod 701 and the second hinged rod 702. By driving the cross-scissor-type telescopic frame 700 to rotate and controlling the traveling vehicle to move forward, the maintenance spray pipe 800 is gradually retracted at the hinge of the first hinged rod 701 and the second hinged rod 702. The cross-scissor-type telescopic frame 700 not only has the function of installing and adjusting the maintenance spray pipe 800, but also can reel in and unreel the maintenance spray pipe 800, thereby playing the role of storing the maintenance spray pipe 800, thereby facilitating the transfer and transportation of the maintenance spray pipe 800 and the cross-scissor-type telescopic frame 700, saving the time for installation and laying of the maintenance spray pipe 800, and eliminating the need to separately arrange the maintenance spray pipe 800, thereby improving work efficiency.

[0022] As a preferred embodiment of the present invention, Figure 5-8As shown, the plate-shaped assembly seat 200 includes a plate-shaped seat body 201 arranged transversely, a first connecting ear 204 is configured at one end of the plate-shaped seat body 201 extending outward, a first strip hole 203 is installed on the plate-shaped seat body 201, and the first strip hole 203 extends along the length direction of the plate-shaped seat body 201. The specific structure of the self-pressing running mechanism 300 is that the self-pressing running mechanism 300 includes a mounting wheel seat 301, a running wheel 302, a vertical column 305, a first connecting seat 304, a first adjusting screw 309 and a second adjusting screw 308. The mounting wheel seat 301 is arranged below the plate-shaped seat body 201, the running wheel 302 is mounted on the mounting wheel seat 301, a brake member 303 is mounted on the mounting wheel seat 301, and the brake member 303 is used to brake the running wheel 302, the lower end of the vertical column 305 is fixedly mounted on the upper end of the mounting wheel seat 301, and the upper end of the vertical column 305 passes through the plate-shaped seat body 201 through the first strip hole 203. The first connecting seat 304 of this embodiment is movably mounted on the vertical column 305, and the first adjusting screw 309 is arranged horizontally, and the first adjusting screw 309 is rotatably connected to the first connecting seat 304 through the first connecting ear 204, and the first adjusting screw 309 is threadedly connected to the first connecting ear 204. In this embodiment, the first adjusting screw 309 is rotated to drive the first connecting seat 304 to move horizontally along the ballastless track, and then the mounting wheel seat 301 is driven to move horizontally through the vertical column 305, so as to adjust the running wheel 302 to roll the top end surface 103 of the U-shaped beam 100, so that the two self-pressing running mechanisms 300 on the telescopic support unit can cross U-shaped beams 100 of different widths and run on U-shaped beams 100 of different models. In this embodiment, an adjusting cap 306 is movably installed on the upper end of the vertical column 305, and a connecting spring 307 is sheathed on the outer surface of the vertical column 305. The connecting spring 307 is located between the adjusting cap 306 and the first connecting seat 304, and the two ends of the connecting spring 307 are respectively connected to the adjusting cap 306 and the first connecting seat 304 at their respective ends close to each other. The second adjusting screw 308 of this embodiment is vertically arranged, and the second adjusting screw 308 is rotatably connected to the adjusting cap 306 , and the lower end of the second adjusting screw 308 is threadedly connected to the vertical column 305 .In this embodiment, the second adjusting screw 308 is rotated to drive the adjusting cap 306 to move vertically, thereby adjusting the compression amount of the connecting spring 307 which is always in a compressed state. In this way, the elastic preload force of the connecting spring 307 acts on the running wheel 302 through the adjusting cap 306, the second adjusting screw 308 and the mounting wheel seat 301, so that the running wheel 302 can be elastically pressed on the top end surface 103 of the U-shaped beam 100, ensuring that the entire maintenance system is steadily transferred between different sections of the ballastless track, avoiding unstable movement (jumping, deviation, etc. of the running wheel 302); and during spray maintenance, after the brake member 303 brakes the running wheel 302, the running wheel 302 is elastically pressed on the top end surface 103 of the U-shaped beam 100, thereby avoiding relative movement between the self-pressing running mechanism 300 and the U-shaped beam 100.

[0023] As a preferred embodiment of the present invention, Figure 5-7As shown, a second connecting ear 206 is constructed at one end of the plate-like base 201 away from the first connecting ear 204 , and a second strip hole 202 and a transmission hole 205 are respectively opened on the plate-like base 201 and the second connecting ear 206 , and the second strip hole 202 extends along the length direction of the plate-like base 201 . The adjustable adapter mechanism 500 of this embodiment includes a vertical threaded rod 501, an adapter sleeve 503, a second connecting seat 502, a third connecting seat 505 and an adapter screw 506, wherein the upper end of the vertical threaded rod 501 passes through the plate-like seat body 201 through the second strip hole 202, the upper end of the adapter sleeve 503 is fixedly connected to the lower end of the second connecting seat 502, the lower end of the adapter sleeve 503 passes through the plate-like seat body 201 through the second strip hole 202, the vertical threaded rod 501 is threadedly connected to the adapter sleeve 503, a connecting nut 504 is externally threadedly connected to the adapter sleeve 503, and the second connecting seat 502 and the connecting nut 504 are respectively arranged at the upper and lower ends of the plate-like seat body 201. The third connection seat 505 of this embodiment is rotatably connected to the lower end of the vertical threaded rod 501, and the transfer screw 506 is threadedly connected to the third connection seat 505. The transfer screw 506 is threadedly connected to the internal threaded sleeve 707 on the corresponding transfer assembly in the cross-scissor type telescopic frame 700. In this embodiment, the connection position of the vertical threaded rod 501 and the plate-like seat body 201 can be adjusted along the length direction of the second strip hole 202, so that the vertical threaded rod 501 drives one end of the cross-scissor type telescopic frame 700 to move through the third connection seat 505, thereby achieving the purpose of stretching or compressing the cross-scissor type telescopic frame 700. When the relative distance between the two adjustable transfer mechanisms 500 increases or decreases, the cross-scissor type telescopic frame 700 is passively extended or shortened, thereby increasing or decreasing the spacing between adjacent maintenance spray pipes 800, thereby adjusting the spray range. When the two adjustable adapter mechanisms 500 move in the same direction, they drive the cross-cutting telescopic frame 700 to move horizontally along the ballastless track, thereby changing the spraying area, so that the single side or the middle of the ballasted track can be sprayed and humidified separately, ensuring that the area with faster water evaporation can be fully replenished with water. Specifically, loosen the connecting nut 504 so that the adapter sleeve 503 can move freely in the second strip hole 202, and then drive the vertical threaded rod 501 to move along the length direction of the second strip hole 202. After the adjustment is completed, tighten the connecting nut 504. This embodiment can also perform automatic adjustment. The measures taken are: a transverse driving member is arranged between the plate-like seat body 201 and the adjustable adapter mechanism 500. The transverse driving member generally adopts a transverse electric cylinder 600. The cylinder body 601 of the transverse electric cylinder 600 is detachably mounted on the second connecting ear 206. The cylinder rod 602 of the transverse electric cylinder 600 passes through the transmission hole 205 on the second connecting ear 206 and is connected to the second connecting seat 502. The connecting nut 504 is in an untightened state. At this time, the connecting nut 504 serves to limit the vertical threaded rod 501, thereby preventing the vertical threaded rod 501 from moving vertically or having a tendency to move vertically.In this embodiment, the horizontal electric cylinder 600 is controlled to move, so that it drives the vertical threaded rod 501 to move along the length direction of the second strip hole 202, so that the vertical threaded rod 501 drives the corresponding end of the cross-scissor type telescopic frame 700 to move.

[0024] As a preferred embodiment of the present invention, in order to prevent the entire maintenance system from being deflected during the spraying operation and the subsequent transfer between different sections, the measures taken in this embodiment are as follows: Figure 3 , 6 As shown in , 7, a lateral limiting mechanism 400 is installed at the lower end of each plate-like seat body 201, and the lateral limiting mechanism 400 includes an adapter plate 401, a connecting screw 403, a limiting screw 405 and a limiting seat 406. The upper end of the adapter plate 401 is connected to the lower end of the plate-like seat body 201 through the connecting screw 403, and a locking nut 404 is threadedly connected to the connecting screw 403. A third strip hole 402 is provided on the adapter plate 401, and the third strip hole 402 extends along the length direction of the adapter plate 401. One end of the limit screw 405 passes through the third strip hole 402. Two fastening nuts 407 are threadedly connected to the limit screw 405. The two fastening nuts 407 are locked on two opposite end surfaces of the adapter plate 401. The limit seat 406 is fixedly installed on one end of the limit screw 405 close to the upper edge side wall 104 of the U-shaped beam 100. The end of the limit seat 406 away from the limit screw 405 is a structure made of rubber material. The limit seat 406 is elastically pressed on the upper edge side wall 104 through the structure made of rubber material. In this embodiment, the connection angle between the adapter plate 401 and the plate-like seat body 201 can be adjusted according to the inclination of the surface of the target object to which the limiting seat 406 is connected, that is, the locking nut 404 is loosened, and then the adapter plate 401 is rotated by a certain angle along the axis of the connecting screw 403. After the adjustment is completed, the locking nut 404 is tightened to lock the position of the adapter plate 401 and the plate-like seat body 201. In addition, the limiting seat 406 can be connected to different positions on the surface of the target object by adjusting the position of the limiting screw 405 and the third strip hole 402, ensuring that the limiting seat 406 can be fully elastically pressed on the surface of the target object to avoid slipping between the two.

[0025] As a preferred embodiment of the present invention, Fig.13 , 14As shown, the water inlet pipe system 900 includes a distribution pipe 901 connected to a water inlet main pipe 904, the water inlet main pipe 904 is connected to the outlet end of the pressure water pump, and a plurality of first joint pipes 902 are connected to the distribution pipe 901 at intervals along its length direction, and a third quick joint 903 is fixedly installed on each first joint pipe 902, and the third quick joint 903 is detachably connected to the corresponding end of the maintenance spray pipe 800, so that the first joint pipe 902 is connected to the corresponding maintenance spray pipe 800. The connecting pipe system 1000 includes a conducting pipe 1001 connected to a plurality of second joint pipes 1002, and a fourth quick joint 1003 is fixedly installed on each second joint pipe 1002, and the fourth quick joint 1003 is detachably connected to the other end of the maintenance spray pipe 800, so that the second joint pipe 1002 is connected to the corresponding maintenance spray pipe 800. The distribution pipe 901 and the conducting pipe 1001 are both soft pipes, so as to facilitate the adjustment of the distance between the maintenance spray pipes 800.

[0026] As a preferred embodiment of the present invention, Figure 1 , 11 As shown, the maintenance spray pipe 800 includes a plurality of spray branches connected in sequence, each spray branch includes a hose body 801 extending along the length direction of the ballastless track, a plurality of spray holes are opened on the peripheral wall of the hose body 801 facing the ballastless track, and a first quick connector 802 and a second quick connector 803 are respectively constructed at both ends of the hose body 801, and the first quick connector 802 and the second quick connector 803 of the two adjacent hose bodies 801 close to each other are detachably connected, and the first quick connector 802 and the second quick connector 803 located at the end are detachably connected with the corresponding third quick connector 903 and the fourth quick connector 1003. In this embodiment, an operating gear ring 804 is constructed on the first quick connector 802. After the hose body 801 is assembled, the hose body 801 will be twisted to a certain extent, thereby causing the direction of the spray hole to deviate from the ballastless track, and then the operating gear ring 804 is rotated to cause it to drive one end of the hose body 801 to twist, so that the hose body 801 is gradually corrected, and finally the spray hole is directed toward the ballastless track.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A rail transit U-beam wall-mounted pipeline ballastless track maintenance system, characterized by: It comprises a plurality of telescopic support units arranged at intervals along the length direction of the ballastless track, a plurality of maintenance spray pipes arranged side by side are installed between the telescopic support units, the maintenance spray pipes are located above the ballastless track, the two ends of each maintenance spray pipe are respectively connected to the water inlet pipe system and the connecting pipe system, the inlet end of the water inlet pipe system is connected to the water storage tank via a pressure water pump, and each of the telescopic support units spans across both sides of the U-shaped beam.

2. The rail transit U-beam wall-mounted pipeline ballastless track maintenance system according to claim 1 is characterized by: The telescopic support unit includes a scissor-type telescopic frame laterally arranged above the ballastless track, each of the maintenance spray pipes is connected to the corresponding part of the scissor-type telescopic frame, and plate-like assembly seats are respectively arranged on both sides of the scissor-type telescopic frame. Each of the plate-like assembly seats is detachably connected to the corresponding end of the scissor-type telescopic frame through an adjustable adapter mechanism, and a self-pressing running mechanism is installed on the plate-like assembly seat, and the self-pressing running mechanism is rolled on the top end surface of the corresponding side of the U-shaped beam.

3. The rail transit U-beam wall-mounted pipeline ballastless track maintenance system according to claim 2 is characterized by: The cross-shear type telescopic frame includes a plurality of cross-shear rod groups connected in sequence, and adapter components respectively connected at both ends of these cross-shear rod groups; the cross-shear rod group includes a first hinged rod and a second hinged rod hinged in a scissor-like manner through a hinge axis, and the end of the first hinged rod in two adjacent cross-shear rod groups is hinged to the end of the corresponding second hinged rod; the adapter component includes a third hinged rod and a fourth hinged rod, both of which are hinged on the adapter seat at their ends close to each other, the end of the third hinged rod away from the adapter seat is hinged to the end of the corresponding first hinged rod or the second hinged rod, and the end of the fourth hinged rod away from the adapter seat is hinged to the end of the corresponding second hinged rod or the first hinged rod, and the adapter seat is detachably connected to the adjustable adapter mechanism.

4. The rail transit U-beam wall-mounted pipeline ballastless track maintenance system according to claim 3 is characterized by: An adapter is installed on each of the hinged shafts, and the adapter is connected to the corresponding maintenance spray pipe; the adapter includes a first fixing sleeve and a second fixing sleeve with two ends of an adapter elbow, and a first locking hole and a second locking hole are respectively opened on the first fixing sleeve and the second fixing sleeve, and the first fixing sleeve and the second fixing sleeve are respectively mounted on the hinged shaft and the maintenance spray pipe, and the first locking bolt and the second locking bolt are respectively threadedly connected to the first fixing sleeve and the second fixing sleeve, and the ends of the first locking bolt and the second locking bolt are respectively locked on the outer peripheral wall of the hinged shaft and the maintenance spray pipe.

5. The rail transit U-beam wall-mounted pipeline ballastless track maintenance system according to claim 2 is characterized by: The plate-like assembly seat includes a transversely arranged plate-like seat body, a first connecting ear is constructed at one end of the plate-like seat body extending outward, a first strip hole extending along the length direction of the plate-like seat body is installed on the plate-like seat body, and the plate-like seat body is connected to the self-pressurized running mechanism through the first strip hole and the first connecting ear.

6. The rail transit U-beam wall-mounted pipeline ballastless track maintenance system according to claim 5 is characterized by: The self-pressurized running mechanism includes a mounting wheel seat arranged below the plate-like seat body, a running wheel and a brake member for braking are installed on the mounting wheel seat, a vertical column is constructed at the upper end of the mounting wheel seat, the upper end of the vertical column passes through the plate-like seat body through a first strip hole, a first connecting seat is movably mounted on the vertical column, a transversely arranged first adjusting screw is rotatably connected to the first connecting seat via a first connecting ear, and the first adjusting screw is threadedly connected to the first connecting ear, an adjusting cap is movably mounted on the upper end of the vertical column, a connecting spring is arranged outside the vertical column and between the adjusting cap and the first connecting seat, a vertically arranged second adjusting screw is rotatably connected to the adjusting cap, and the lower end of the second adjusting screw is threadedly connected to the vertical column.

7. The rail transit U-beam wall-mounted pipeline ballastless track maintenance system according to claim 5 is characterized by: A second connecting ear is constructed at an end of the plate-like seat body away from the first connecting ear, and a second strip hole and a transmission hole are respectively opened on the plate-like seat body and the second connecting ear, and the second strip hole extends along the length direction of the plate-like seat body; the adjustable adapter mechanism includes a vertical threaded rod passing through the plate-like seat body through the second strip hole, the vertical threaded rod is threadedly connected to an adapter sleeve on the second connecting seat, the adapter sleeve passes through the second strip hole, and a connecting nut is externally threadedly connected to the adapter sleeve, the second connecting seat and the connecting nut are respectively arranged at the upper and lower ends of the plate-like seat body, and a third connecting seat is rotatably connected to the lower end of the vertical threaded rod, and a adapter screw is threadedly connected to the third connecting seat, the adapter screw is detachably connected to the corresponding end of the scissor-type telescopic frame, the transverse driving member is detachably connected to the second connecting ear, and the driving end of the transverse driving member is connected to the second connecting seat.

8. The rail transit U-beam wall-mounted pipeline ballastless track maintenance system according to claim 5 is characterized by: A lateral limit mechanism is installed at the lower end of the plate-like seat body, and the lateral limit mechanism includes an adapter plate connected to the lower end of the plate-like seat body through a connecting screw, a locking nut is threadedly connected to the connecting screw, and a third strip hole extending along its length direction is opened on the adapter plate, one end of the limit screw passes through the third strip hole, and two fastening nuts are threadedly connected to the limit screw, and the two fastening nuts are locked to two opposite end surfaces of the adapter plate, and a limit seat is fixed to one end of the limit screw close to the upper edge side wall of the U-shaped beam, and the limit seat is elastically pressed on the upper edge side wall.

9. The rail transit U-beam wall-mounted pipeline ballastless track maintenance system according to claim 1, characterized in that: The water inlet pipe system includes a distribution pipe connected to a water inlet main pipe, the water inlet main pipe is connected to the outlet end of a pressure water pump, and a plurality of first joint pipes are connected to the distribution pipe at intervals along its length direction, each of the first joint pipes is connected to one end of a corresponding maintenance spray pipe; the connecting pipe system includes a conducting pipe connected to a plurality of second joint pipes, each of the second joint pipes is connected to the other end of a corresponding maintenance spray pipe.

10. The rail transit U-beam wall-mounted pipeline ballastless track maintenance system according to claim 1, characterized in that: The maintenance spray pipe includes a plurality of spray branches connected in sequence, each of the spray branches includes a hose body extending along the length direction of the ballastless track, a plurality of spray holes are opened on the peripheral wall of the hose body facing the ballastless track, a first quick connector and a second quick connector are respectively constructed at both ends of the hose body, the first quick connector and the second quick connector of two adjacent hose bodies close to each other are detachably connected, and an operating gear ring is constructed on the first quick connector.

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