A safety monitoring device applied to rail transit construction

Abstract

The application discloses a safety monitoring device applied to rail transit construction and relates to the technical field of rail safety construction, which comprises a rail, a mounting table arranged on the rail in a sliding mode, a supporting frame fixedly connected to one side of the top of the mounting table, and a display screen fixedly connected to the top of the supporting frame; a plurality of sub-detection units are arranged on the two sides of the rail, each of the sub-detection units comprises a plug-in pipe, an adjusting rod is slidably connected to the inner wall of the plug-in pipe, a plurality of adjusting rings are rotatably connected to the middle part of the adjusting rod, and an optoelectronic sensor is fixedly installed in the middle part of each of the adjusting rings; the sub-detection units are arranged in a scattered mode, the optoelectronic sensors on the sub-detection units are used for monitoring the areas on the two sides of the rail, an alarm is given when a construction personnel or a vehicle device crosses the sub-detection units, the crossing position is displayed through the display screen, and the user is reminded to keep away from the rail position, so that the construction safety is ensured.

Description

Technical Field

[0001] This invention relates to the field of track safety construction technology, specifically a safety monitoring device applied to rail transit construction. Background Technology

[0002] Rail transit infrastructure and equipment operate under conditions of wheel-rail friction, vibration, and impact for extended periods, often resulting in varying degrees of functional degradation and damage, such as deterioration of track geometry, rail wear or breakage, loose or missing fasteners, track bed settlement, and sleeper cracking. To ensure the safe operation of rail transit, maintenance units frequently need to carry out construction and repair work on the tracks and other infrastructure.

[0003] During construction, safety protection devices are required to ensure the safety of construction workers and the surrounding area. Existing safety protection devices, such as the railway construction safety protection device disclosed in publication number CN111605584B, alert construction workers by waving a red cloth when a train is detected approaching. However, this device has a limited function and lacks sufficient monitoring capabilities for the movement of personnel and equipment during construction. Furthermore, the movement of personnel and equipment in the track area or non-construction area can easily cause additional damage to the track and poses a risk of danger. Summary of the Invention

[0004] The purpose of this invention is to provide a safety monitoring device for rail transit construction, in order to solve the problem that existing construction safety protection devices, as mentioned in the background art, lack sufficient monitoring capabilities for the movement of personnel and equipment.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A safety monitoring device for rail transit construction includes a track, on which an installation platform is slidably mounted. A support frame is fixedly connected to one side of the top of the installation platform, and a display screen is fixedly connected to the top of the support frame. An alarm is fixedly mounted on the top of the display screen. Several sub-detection units are arranged on both sides of the track. Each sub-detection unit includes a connector, and an adjusting rod is slidably connected to the inner wall of the connector. Several adjusting rings are rotatably connected to the middle of the adjusting rod, and photoelectric sensors are fixedly mounted in the middle of each of the adjusting rings.

[0007] As a further aspect of the present invention: the bottom of the insertion tube is fixedly connected to the insertion rod, the bottom of the insertion rod is set in a pointed cone shape, the outer walls of the insertion tube and the adjusting rod are coated with scale lines, and the top of the adjusting rod is fixedly connected to a displacement stop.

[0008] As a further embodiment of the present invention: two symmetrically arranged track detection units are fixedly installed on the other side of the top of the mounting platform, and an operating platform is provided between the two track detection units. An operating panel is provided on the top of the operating platform. The track detection unit includes a detection box, and a cover plate is snapped onto the top of the detection box. The bottom of the detection box is provided with an upper detection component for detecting the side of the track and a side detection component for detecting the side of the track. The side detection component is located on one side of the upper detection component. The upper detection component includes an outer cover plate, a detection box is fixedly connected to the middle of the outer cover plate, a push plate is slidably connected to the middle of the detection box, a detection frame is fixedly connected to one side of the push plate, a contact guide wheel is rotatably connected to the inner wall of the detection frame, a displacement sensor is fixedly installed at one end of the inner wall of the detection box, and a return spring is fixedly connected to the side of the push plate near the displacement sensor.

[0009] As a further aspect of the present invention: a drive motor is provided on one side of the detection box, and a drive wheel is fixedly connected to the output end of the drive motor; a support plate is provided on the other side of the detection box, and a plurality of support rollers are rotatably connected to the bottom of the support plate, and the bottom of the contact guide wheel, the bottom of the drive wheel and the bottom of the plurality of support rollers are all in contact with the top surface of the track.

[0010] As a further aspect of the present invention: the side detection assembly includes a sliding seat plate, which is slidably connected to the bottom of the inner wall of the detection box. A locking bolt is threadedly connected to the middle of the sliding seat plate, and a side wheel mounting rod is fixedly connected to the bottom of the sliding seat plate. A side guide wheel is rotatably connected to the bottom of the side wheel mounting rod, and the side guide wheel is in close contact with the side of the track. An operation port is provided on one side of the detection box, and one end of the operation port is correspondingly set to one side of the sliding seat plate, so that the operator can easily adjust the position of the sliding seat plate through the operation port.

[0011] As a further aspect of the present invention: the side guide wheel includes an inner ring, the inner wall of which is rotatably connected to the side wheel mounting rod, an outer ring is provided on the outer side of the inner ring, a plurality of pressure sensors are fixedly installed on the outer wall of the inner ring, a push spring is fixedly connected between the pressure sensors and the outer ring, and a contact wheel is rotatably connected to the outer wall of the outer ring; a pad is provided in the gap between the pressure sensors, and the height of the pad is higher than the height of the pressure sensor.

[0012] As a further embodiment of the present invention: a water tank is fixedly connected to the top of the inner wall of the detection box, a water pump is fixedly installed on one side of the inner wall of the detection box, an inlet pipe is fixedly connected to the input end of the water pump, one end of the inlet pipe is fixedly connected to the water tank, an outlet pipe is fixedly connected to the output end of the water pump, the outlet pipe extends to the bottom of the mounting platform, an adjusting frame is fixedly connected to one end of the outlet pipe, a directional motor is fixedly connected to one side of the adjusting frame, a directional nozzle is fixedly connected to the output end of the directional motor, one end of the directional nozzle is rotatably connected to the outlet pipe, and the directional nozzle is a slit nozzle.

[0013] As a further aspect of the present invention: a partition plate is fixedly connected to the inner wall of the water tank, the partition plate divides the inner cavity of the water tank into several storage chambers, a sealing cover is snapped onto the top of each of the several storage chambers, a vent hole is opened in the middle of the sealing cover, a diversion pipe is fixedly connected to the bottom of each of the several storage chambers, a diversion control valve is fixedly installed in the middle of each of the several diversion pipes, and one end of each of the several diversion pipes is connected to the water inlet pipe.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the present invention sets up several dispersed sub-detection units and uses photoelectric sensors on them to monitor the area on both sides of the track. When construction personnel or vehicles and equipment cross the sub-detection unit, the alarm is triggered and the crossing position is displayed on the screen, thereby reminding users to stay away from the track position and ensuring construction safety.

[0015] This invention, by setting up upper and side detection components, utilizes displacement sensors and pressure sensors to detect vertical and lateral torsional offsets or misalignments of the track and sends out signals to alert operators; during movement, the track is detected in real time, resulting in higher detection efficiency.

[0016] This invention cleans the track by supplying water to the inside or middle of the track using equipment such as a water tank and an air pump. The water outlet position is adjusted by using a directional motor to adjust the attitude of the nozzles. The water tank's inner cavity is divided into several areas by a partition plate, allowing the tank to hold multiple different solutions simultaneously, thus achieving multiple functions including cleaning the area around the track, weeding, and maintenance. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is a perspective view of the sub-detection unit of the present invention;

[0019] Figure 3 This is a cross-sectional view of the track detection unit of the present invention;

[0020] Figure 4 This is a schematic diagram of the side guide wheel of the present invention;

[0021] Figure 5 This is a cross-sectional view of the detection component of the present invention;

[0022] Figure 6 This is a cross-sectional view of the water tank of the present invention.

[0023] In the diagram: 1. Track; 2. Mounting platform; 3. Detection box; 4. Side wheel mounting rod; 5. Contact wheel; 6. Sliding seat plate; 7. Inner ring; 8. Outer ring; 9. Push spring; 10. Pressure sensor; 11. Pad; 12. Outer cover plate; 13. Support roller; 14. Drive wheel; 15. Detection box; 16. Contact guide wheel; 17. Push plate; 18. Water pump; 19. Water outlet pipe; 20. Directional nozzle; 21. Water tank; 22. Divider plate; 23. Water inlet pipe; 24. Diversion pipe; 25. Diversion control valve; 26. Sealing cover; 27. Connecting pipe; 28. Adjusting rod; 29. ​​Adjusting ring; 30. Photoelectric sensor; 31. Support frame; 32. Display screen; 33. Alarm. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see Figures 1-6In this embodiment of the invention, a safety monitoring device for rail transit construction includes a track 1, a mounting platform 2 slidably disposed on the track 1, a support frame 31 fixedly connected to one side of the top of the mounting platform 2, a display screen 32 fixedly connected to the top of the support frame 31, and an alarm 33 fixedly mounted on the top of the display screen 32; several sub-detection units are arranged on both sides of the track 1, each sub-detection unit including a connector 27, an adjusting rod 28 slidably connected to the inner wall of the connector 27, several adjusting rings 29 rotatably connected to the middle of the adjusting rod 28, and photoelectric sensors 30 fixedly mounted in the middle of each adjusting ring 29; by setting several dispersed sub-detection units, the device utilizes the light on them... The electrical sensor 30 monitors the area on both sides of track 1. When construction personnel or vehicles cross the sub-detection unit, the alarm 33 sounds and displays the crossing position on the display screen 32, thereby reminding users to stay away from the track 1 position to ensure construction safety. In this embodiment, the photoelectric sensor 30 can be a cut-off type photoelectric sensor 30, which triggers the alarm 33 when personnel or equipment cross and cause signal interruption. Alternatively, cameras can be installed on each sub-detection unit to take photos of the crossing and display them on the display screen 32 to facilitate workers in determining the crossing position. In specific implementation, several sub-detection units can be used to arbitrarily enclose and construct a construction area to achieve safety monitoring of the area.

[0026] Because the adjustment rings 29 are rotatably connected, the detection direction of the photoelectric sensor 30 is adjustable, enabling the enclosure of construction areas of different shapes. When needed, the signal generating end and receiving end of the interrupted photoelectric sensor 30 can be set on two different sub-detection units. By adjusting the position of the adjustment rings 29 and the height of the plug pipe 27 and the adjustment rod 28, the receiving end and the transmitting end can be aligned. When construction causes ground subsidence or earthwork displacement near track 1, the receiving end and the transmitting end are misaligned, the signal is interrupted, and an alarm is triggered. This enables safety monitoring of construction and avoids safety hazards to the operation of track 1 caused by construction operations.

[0027] To facilitate insertion of the connector 27 into the ground, a connector rod is fixedly connected to the bottom of the connector 27. The bottom of the connector rod is set in a pointed cone shape. To facilitate understanding of the insertion depth of the connector 27, scale lines are coated on the outer walls of both the connector 27 and the adjusting rod 28. A displacement stop is fixedly connected to the top of the adjusting rod 28.

[0028] Two symmetrically arranged track detection units are fixedly installed on the other side of the top of the mounting platform 2. An operating platform is set between the two track detection units. An operating panel is set on the top of the operating platform. Space is left on one side of the operating platform for the operator to stand or install a seat. The track detection unit includes a detection box 3. A cover plate is snapped to the top of the detection box 3. The bottom of the detection box 3 is provided with an upper detection component for detecting the side of the track 1 and a side detection component for detecting the side of the track 1.

[0029] The upper detection assembly includes an outer cover plate 12, a detection box 15 fixedly connected to the middle of the outer cover plate 12, a push plate 17 slidably connected to the middle of the detection box 15, a detection frame fixedly connected to one side of the push plate 17, a contact guide wheel 16 rotatably connected to the inner wall of the detection frame, a displacement sensor fixedly installed at one end of the inner wall of the detection box 15, and a reset spring fixedly connected to the side of the push plate 17 near the displacement sensor. By setting up the upper detection assembly, the vertical misalignment of the track 1 is detected. When the track 1 is misaligned in the vertical direction, or when there is debris attached to its top surface, the contact guide rail will be pushed in the vertical direction when passing through, thereby driving the push plate 17 to move. The displacement sensor detects the displacement of the push plate 17 and sends a signal to remind the operator to handle it.

[0030] To enable the overall driving of the mounting platform 2 and the monitoring device, a drive motor is provided on one side of the detection box 15, and a drive wheel 14 is fixedly connected to the output end of the drive motor; a support plate is provided on the other side of the detection box 15, and several support rollers 13 are rotatably connected to the bottom of the support plate. The bottom of the contact guide wheel 16, the bottom of the drive wheel 14 and the bottom of the several support rollers 13 are all in contact with the top surface of the track 1.

[0031] The side detection assembly includes a sliding seat plate 6, which is slidably connected to the bottom of the inner wall of the detection box 3. A locking bolt is threadedly connected to the middle of the sliding seat plate 6, and a side wheel mounting rod 4 is fixedly connected to the bottom of the sliding seat plate 6. A side guide wheel is rotatably connected to the bottom of the side wheel mounting rod 4, and the side guide wheel is in close contact with the side of the track 1. By setting the side guide wheel and other structures, the overall lateral limit of the device is realized, and the stability of the device as a whole during the movement along the track 1 is improved.

[0032] An operating port is provided on one side of the testing box 3. One end of the operating port is correspondingly set to one side of the sliding seat plate 6. The operating port allows the operator to easily move and adjust the sliding seat plate 6. Adjusting the sliding seat plate 6 adjusts the position of the side guide wheel, thereby improving the fit stability between the track 1 and the track.

[0033] The side guide wheel includes an inner ring 7, the inner wall of which is rotatably connected to the side wheel mounting rod 4. An outer ring 8 is provided on the outer side of the inner ring 7. Several pressure sensors 10 are fixedly installed on the outer wall of the inner ring 7. A push spring 9 is fixedly connected between the pressure sensor 10 and the outer ring 8. A contact wheel 5 is rotatably connected to the outer wall of the outer ring 8. A pad 11 is provided in the gap between the pressure sensors 10, and the height of the pad 11 is higher than the height of the pressure sensor 10. By setting several pressure sensors 10 between the inner ring 7 and the outer ring 8, the pressure state of the side guide wheel can be detected. When the track 1 undergoes lateral torsional deviation, the push pressure on the side guide wheel changes when it passes through. The pressure sensor 10 detects this and sends a signal to remind the operator to handle the situation.

[0034] A water tank 21 is fixedly connected to the top of the inner wall of the testing box 3. A water pump 18 is fixedly installed on one side of the inner wall of the testing box 3. A water inlet pipe 23 is fixedly connected to the input end of the water pump 18. One end of the water inlet pipe 23 is fixedly connected to the water tank 21. A water outlet pipe 19 is fixedly connected to the output end of the water pump 18. The water outlet pipe 19 extends to the bottom of the mounting platform 2. An adjustment frame is fixedly connected to one end of the water outlet pipe 19. A directional motor is fixedly connected to one side of the adjustment frame. A directional nozzle 20 is fixedly connected to the output end of the directional motor. One end of the directional nozzle 20 is rotatably connected to the water outlet pipe 19. The directional nozzle 20 is a slit nozzle. By setting up the water tank 21 and the air pump, water is delivered to the inside of the track 1 or the middle of the track 1 to clean the track 1. The water outlet position is adjusted by adjusting the attitude of the directional motor and the adjustment of the nozzle.

[0035] A partition plate 22 is fixedly connected to the inner wall of the water tank 21, dividing the inner cavity of the water tank 21 into several storage chambers. The top of each storage chamber is fitted with a sealing cover 26, and the sealing cover 26 has a vent hole in the middle. The bottom of each storage chamber is fixedly connected to a diversion pipe 24, and a diversion control valve 25 is fixedly installed in the middle of each diversion pipe 24. One end of each diversion pipe 24 is connected to the inlet pipe 23. By setting the partition plate 22 to divide the inner cavity of the water tank 21 into several areas, the water tank 21 can simultaneously hold multiple different solutions, thereby realizing multiple functions including cleaning, weeding, and maintenance near the track 1. When different solutions need to be output, the diversion control valve 25 on the diversion pipe 24 connected to the storage chamber containing the corresponding solution is opened, and the diversion control valve 25 on the other diversion pipes 24 is closed.

[0036] In use, several sub-detection units are set on both sides of the track 1, and photoelectric sensors 30 are activated to monitor both sides of the track 1; when personnel or construction equipment cross the track and cause signal interruption, the alarm 33 is triggered; the display screen 32 displays the location of the sub-detection unit where the crossing occurs; cameras can also be installed on each sub-detection unit to take photos during the crossing and display them on the display screen 32, so that the operator can remind the crosser to pay attention.

[0037] The drive motor drives the drive wheel 14 to rotate, thereby moving the entire device along the track 1. During the movement, the contact wheel 5 contacts the side of the track 1, and the bottom of the contact guide wheel 16, the bottom of the drive wheel 14, and the bottom of several supporting rollers 13 all contact the top surface of the track 1.

[0038] When track 1 undergoes lateral torsional deviation, or when debris is attached to its side, the pushing pressure on the side guide wheel changes as it passes through, which in turn causes displacement between the contact wheel 5, the outer ring 8, and the inner ring 7, causing the pushing spring 9 to move. The pressure sensor 10 detects the change in force and sends out a signal.

[0039] When track 1 is misaligned in the vertical direction, or when there is debris attached to its top surface, the contact guide rail will be pushed in the vertical direction when it passes through, which will drive the push plate 17 to move. The displacement sensor detects the displacement of the push plate 17 and sends a signal to remind the operator to handle it.

[0040] When it is necessary to clean track 1, the diversion control valve 25 on the diversion pipe 24 connected to the storage chamber containing clean water is opened, the water pump 18 is started, the clean water entering through the inlet pipe 23 is sent out through the outlet pipe 19, and then sprayed onto track 1 by the directional nozzle 20. The directional motor drives the directional nozzle 20 to rotate, thereby cleaning track 1 and the middle area of ​​the passageway.

[0041] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A safety monitoring device applied to rail transit construction, characterized in that, The system includes a track (1), on which a mounting platform (2) is slidably mounted. A support frame (31) is fixedly connected to one side of the top of the mounting platform (2). A display screen (32) is fixedly connected to the top of the support frame (31). An alarm (33) is fixedly mounted on the top of the display screen (32). Several sub-detection units are provided on both sides of the track (1). Each sub-detection unit includes a connector (27). An adjusting rod (28) is slidably connected to the inner wall of the connector (27). Several adjusting rings (29) are rotatably connected to the middle of the adjusting rod (28). A photoelectric sensor (30) is fixedly mounted in the middle of each of the adjusting rings (29). Two symmetrically arranged track detection units are fixedly installed on the other side of the top of the mounting platform (2); the track detection unit includes a detection box (3), and an upper detection component is set at the bottom of the detection box (3); the upper detection component includes an outer cover plate (12), a detection box (15) is fixedly connected to the middle of the outer cover plate (12), a push plate (17) is slidably connected to the middle of the detection box (15), a detection frame is fixedly connected to one side of the push plate (17), a contact guide wheel (16) is rotatably connected to the inner wall of the detection frame, a displacement sensor is fixedly installed at one end of the inner wall of the detection box (15), and a reset spring is fixedly connected to the side of the push plate (17) near the displacement sensor; A drive motor is provided on one side of the detection box (15), and a drive wheel (14) is fixedly connected to the output end of the drive motor; a support plate is provided on the other side of the detection box (15), and several support rollers (13) are rotatably connected to the bottom of the support plate. A water tank (21) is fixedly connected to the top of the inner wall of the test box (3). A water pump (18) is fixedly installed on one side of the inner wall of the test box (3). An inlet pipe (23) is fixedly connected to the input end of the water pump (18). One end of the inlet pipe (23) is fixedly connected to the water tank (21). An outlet pipe (19) is fixedly connected to the output end of the water pump (18). An adjusting frame is fixedly connected to one end of the outlet pipe (19). A directional motor is fixedly connected to one side of the adjusting frame. A directional nozzle (20) is fixedly connected to the output end of the directional motor. One end of the directional nozzle (20) is rotatably connected to the outlet pipe (19). The upper detection component is provided with a side detection component for detecting the side of the track (1) on one side. The side detection component includes a sliding seat plate (6). A locking bolt is threaded to the middle of the sliding seat plate (6). A side wheel mounting rod (4) is fixedly connected to the bottom of the sliding seat plate (6). A side guide wheel is rotatably connected to the bottom of the side wheel mounting rod (4). The side guide wheel is in close contact with the side of the track (1). The side guide wheel includes an inner ring (7). The inner wall of the inner ring (7) is rotatably connected to the side wheel mounting rod (4). An outer ring (8) is provided on the outer side of the inner ring (7). A pressure sensor (10) is fixedly installed on the outer wall of the inner ring (7). A push spring (9) is provided between the pressure sensor (10) and the outer ring (8). A contact wheel (5) is rotatably connected to the outer wall of the outer ring (8).

2. The safety monitoring device for rail transit construction according to claim 1, characterized in that, The inner wall of the water tank (21) is fixedly connected to a partition plate (22), which divides the inner cavity of the water tank (21) into several storage chambers. The bottom of each of the several storage chambers is fixedly connected to a diversion pipe (24), and a diversion control valve (25) is fixedly installed in the middle of each of the several diversion pipes (24). One end of each of the several diversion pipes (24) is connected to the water inlet pipe (23).

3. The safety monitoring device for rail transit construction according to claim 1, characterized in that, The bottom of the insertion tube (27) is fixedly connected to the insertion rod. The outer walls of the insertion tube (27) and the adjusting rod (28) are coated with scale lines. The top of the adjusting rod (28) is fixedly connected to the displacement stop.

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