Rail transit engineering-based post-rail horizontal displacement laser measurement device and method

Abstract

The invention discloses a laser measuring device and method for post-rail horizontal displacement based on rail traffic engineering, and relates to the technical field of cutting waste liquid treatment, the laser measuring device comprises an adapter plate, a detection mechanism is arranged above the adapter plate and used for detecting the offset of a rail, and the detection mechanism comprises a vibration buffering assembly which is arranged below the adapter plate and used for detecting the offset of the rail; the vibration isolation component is used for isolating vibration generated during operation of the moving component; and the moving assembly comprises a movable plate installed below the vibration buffering assembly, a transmission shaft is installed below the movable plate in a penetrating and inserting mode, guide wheels are fixedly installed at the two ends of the transmission shaft, a motor is fixedly installed above the movable plate, automatic rail movement is achieved through the moving assembly, and frequent manual position adjustment is not needed. The motor provides power, the belt pulley and the transmission belt are matched to drive the transmission shaft to rotate, the widened guide wheels at the two ends of the transmission shaft are embedded with the rails to roll to adapt to possible tiny changes of the distance between the rails, and stable advancing of the device is ensured.

Description

Technical Field

[0001] This invention relates to the field of cutting waste fluid treatment technology, specifically to a laser measurement device and method for horizontal displacement behind rails in rail transit engineering. Background Technology

[0002] In rail transit engineering, the horizontal displacement after track laying refers to the horizontal displacement of the track structure and track foundation relative to the design reference position after track laying is completed. It is one of the core indicators for post-construction deformation monitoring in rail transit engineering, and together with the vertical settlement after track laying, it reflects the stability of the track's geometric position.

[0003] The existing invention patent with publication number CN115014185A discloses a horizontal displacement monitoring and measuring device for urban rail transit engineering, relating to the field of urban rail monitoring. This device includes a base, and a conductive strip is installed and connected to the inner wall of the other side of the front cylinder. The present invention provides a horizontal displacement monitoring and measuring device for urban rail transit engineering by having one end of a measuring rod abut against the track. If horizontal displacement occurs in the track, the thin contact plate slides to simultaneously abut against the resistance strip and conductive strip on the inner wall of the front cylinder, automatically activating a warning light. This allows workers to promptly detect the degree of track displacement based on the brightness of the warning light. The device also automatically stores air by moving the main display to change the deformation state of the telescopic airbag, which is then simultaneously blown out through the main and secondary annular air blowing components. This automatically removes dust from the main display and the front cylinder after measurement.

[0004] Based on the aforementioned existing technologies, due to the influence of track length, current measuring devices require constant position adjustments during the detection process, making them unsuitable for long-distance detection. Furthermore, existing measuring devices cannot mark areas with excessive displacement during detection; they can only reflect the degree of track deviation through data recording. Especially during long-distance measurements, subsequent track adjustments require comparison with the data to find the deviation point, which is very inconvenient. Additionally, to prevent the device from jamming with the deviated track during movement, the tires cannot directly restrain the device as it moves along the track, unlike existing trains. Vibrations during device movement are transmitted to the device itself, causing vertical displacement of the detection equipment and affecting the detection. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a laser measurement device and method for horizontal displacement behind rails in rail transit engineering, which solves the problems of not being able to perform long-distance detection, not being able to mark the offset during the detection process, and the monitoring points deviating vertically from the rails due to vibration.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A laser measurement device and method for track-behind horizontal displacement in rail transit engineering. The laser measurement device for track-behind horizontal displacement in rail transit engineering includes a transition plate, and a detection mechanism is disposed above the transition plate for detecting rail offset. The detection mechanism includes: A vibration damping component, located below the adapter plate, is used to isolate vibrations generated during the operation of the moving component; The movable component includes a movable plate installed below the damping component. A drive shaft is inserted and installed below the movable plate, and guide wheels are fixedly installed at both ends of the drive shaft. A motor is fixedly installed above the movable plate. A pulley is fixedly installed on the outer side of the motor shaft and the center of the drive shaft. A drive belt is sleeved on the outer side of the pulley. The ranging component, located below the adapter plate, is used to detect the rail spacing and the distance between the movable plate and the adapter plate; A support component, located above the adapter plate, is used to isolate vibrations generated during the operation of the marking component; A marker component, positioned above the support component, is used to mark the offset position of the rail.

[0007] Preferably, the vibration damping component includes a connecting block fixedly installed below the adapter plate, a pull rod movably installed below the connecting block, a spring sleeved on the outside of the pull rod, a sleeve inserted through the outside of the pull rod, a connecting rod movably installed at one end of the sleeve, a base movably installed at the bend and end of the connecting rod, a positioning rod fixedly installed below the adapter plate, and a parallel rod movably installed at the bottom end of the positioning rod.

[0008] Preferably, the end disc structure of the pull rod is slidably connected to the inner wall of the sleeve, an annular protrusion is provided on the inner side of one end of the sleeve, the spring is located between the annular protrusion on the inner wall of the sleeve and the end disc structure of the pull rod, the base and the connecting rod are rotatably connected, the base at the bend of the connecting rod is fixedly connected to the adapter plate, and the base at the end of the connecting rod is fixedly connected to the movable plate.

[0009] Preferably, the ranging component includes a crossbeam fixedly installed above the adapter plate, electric actuators fixedly installed on both sides below the crossbeam, a limit block fixedly installed at the movable end of the electric actuator, a limit rod fixedly installed at the front end of the adapter plate, and a laser ranging module fixedly installed at the center of the limit block and the end of the limit rod.

[0010] Preferably, the support assembly includes a connecting shaft fixedly installed above the adapter plate, a leaf spring movably installed above the connecting shaft, a connecting frame tightly fitted at the center of the leaf spring, and a support plate fixedly installed above the connecting frame.

[0011] Preferably, the marking assembly includes a support frame fixedly installed above the support plate, a paint bucket fixedly installed at the center of the support frame, a pressure sensor inserted above the paint bucket, a one-way valve fixedly installed at the center of the top of the paint bucket, an air supply pipe fixedly installed at the top of the one-way valve, and an air pump fixedly installed at the end of the air supply pipe.

[0012] Preferably, a diversion pipe is fixedly installed at the bottom of the paint bucket, and flexible hoses are fixedly installed at both ends of the diversion pipe. A solenoid valve is fixedly installed at the end of the flexible hose, and a fan-shaped nozzle is fixedly installed below the solenoid valve. A mounting bracket is fitted on the outside of the fan-shaped nozzle.

[0013] Preferably, the bottom of the paint bucket is conical, the inner cavity of the paint bucket is fixedly connected to the exhaust end of the air pump through a one-way valve and an air supply pipe, the diverter pipe is T-shaped, the hoses at both ends of the diverter pipe pass through the support plate, and the top of the mounting bracket is fixedly connected to the adapter plate.

[0014] Preferably, the detection mechanism further includes a control component disposed above the support component for outputting control signals. The control component includes a protective box fixedly installed above the support plate. A battery is fixedly installed inside the protective box. A top cover is installed on the top of the protective box via a hinge. A controller is fitted into the center of the top cover. An antenna is fixedly installed on the top of the top cover.

[0015] Preferably, it includes the following steps: S1: Set up the device above the rail that needs to be measured, so that the moving component fits into the rail; S2: After adjusting the distance to be detected by the control component, start the device by the control component; S3: After the device is started, the moving component drives the device to move, and at the same time the ranging component starts to measure the distance between the two rails. S4: The control component receives the detection data from the ranging component in real time, and marks the rails with paint when the data is abnormal.

[0016] Beneficial effects This invention provides a laser measurement device and method for horizontal displacement behind rails in rail transit engineering. Compared with existing technologies, it has the following advantages: 1. A laser measurement device and method for horizontal displacement along rail tracks in rail transit engineering, which achieves autonomous movement along the track by relying on a mobile component, eliminating the need for frequent manual adjustments. A motor provides power, driving a drive shaft to rotate via a pulley and drive belt. Widened guide wheels at both ends of the drive shaft engage and roll with the rails, adapting to subtle changes in rail spacing and ensuring stable movement. Simultaneously, a battery in the control component provides continuous power, and an antenna enables wireless data transmission. Combined with the controller's high-speed computation and local data recording functions, the device can continuously perform horizontal displacement detection over long periods and distances, meeting the needs of long-distance detection. 2. This invention relates to a laser measurement device and method for horizontal displacement behind rails in rail transit engineering. It achieves precise marking through a closed-loop linkage of a ranging component, a control component, and a marking component. An air pump fills a paint bucket with air via an air pipe and a one-way valve. A pressure sensor monitors and maintains a stable air pressure inside the bucket in real time. The laser ranging module of the ranging component collects real-time data on the distance between the rails on both sides and transmits it synchronously to the controller. The controller compares the detected data with preset standard values ​​in real time. When abnormal data is detected, i.e., the rail deviation exceeds the standard, the controller immediately triggers the marking component: the solenoid valve opens, and paint is sprayed from a fan-shaped nozzle through a diversion pipe and hose, precisely covering the deviation position and forming a visual mark, avoiding the inconvenience of subsequently needing to compare data to find the deviation point. 3. This laser measurement device and method for horizontal displacement behind rails in rail transit engineering employs a dual vibration damping design to isolate vibration, while dynamically calibrating the height of the monitoring point. On one hand, the vibration damping component, through the cooperation of connecting rods, tie rods, sleeves, and springs, converts the vibration energy generated by the movement of the moving component into frictional heat and spring elastic potential energy. The positioning rod, parallel rod, connecting rod, and movable plate form a parallelogram structure, ensuring that the movable plate always remains parallel and preventing vibration from causing the moving component to tilt. On the other hand, the leaf spring of the supporting component isolates the vibration of the marking component during operation, preventing vibration from being transmitted to the ranging component. Furthermore, the laser ranging module at the end of the limiting rod monitors the height change of the movable plate in real time. The controller dynamically adjusts the extension and retraction of the electric push rod based on the monitoring data, ensuring that the laser ranging module at the center of the limiting block is always at the same horizontal line as the rail, preventing the monitoring point from deviating vertically due to vibration. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the connecting rod mounting structure of the present invention.

[0018] Figure 3 This is a schematic diagram of the connection structure between the motor and the drive shaft of the present invention.

[0019] Figure 4 This is a schematic diagram of the horizontal bar installation structure of the present invention.

[0020] Figure 5This is a schematic diagram of the beam installation structure of the present invention.

[0021] Figure 6 This is a schematic diagram of the leaf spring mounting structure of the present invention.

[0022] Figure 7 This is a schematic diagram of the connection structure between the paint bucket and the air pump of the present invention.

[0023] Figure 8 This is a schematic diagram of the connection structure between the mounting bracket and the adapter plate of the present invention.

[0024] Figure 9 This is a schematic diagram of the installation structure of the protective box of the present invention.

[0025] Figure 10 This is a schematic diagram of the controller installation structure of the present invention.

[0026] In the diagram: 1. Adapter plate; 2. Detection mechanism; 21. Vibration damping component; 211. Connecting block; 212. Tie rod; 213. Spring; 214. Sleeve; 215. Connecting rod; 216. Base; 217. Positioning rod; 218. Parallel rod; 22. Moving component; 221. Movable plate; 222. Drive shaft; 223. Guide wheel; 224. Motor; 225. Pulley; 226. Drive belt; 23. Ranging component; 231. Crossbeam; 232. Electric actuator; 233. Limiting block; 234. Limiting rod; 235. Laser ranging module 24. Block; 241. Support assembly; 242. Connecting shaft; 243. Leaf spring; 244. Connecting frame; 245. Support plate; 26. Marking assembly; 251. Support frame; 252. Paint bucket; 253. Air pressure sensor; 254. One-way valve; 255. Air supply pipe; 256. Air pump; 257. Diverter pipe; 258. Hose; 259. Solenoid valve; 2510. Fan nozzle; 2511. Mounting bracket; 26. Control assembly; 261. Protective box; 262. Battery; 263. Top cover; 264. Controller; 265. Antenna. Detailed Implementation

[0027] 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 of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figure 1 - Figure 10 This invention provides a technical solution: a laser measurement device and method for track-mounted horizontal displacement in rail transit engineering, comprising an adapter plate 1, with a detection mechanism 2 disposed above the adapter plate 1 for detecting rail offset. The detection mechanism 2 includes: Vibration damping component 21, located below the adapter plate 1, is used to isolate vibrations generated during the operation of the moving component 22. Vibration damping component 21 includes a connecting block 211 fixedly installed below the adapter plate 1. A pull rod 212 is movably installed below the connecting block 211. A spring 213 is sleeved on the outside of the pull rod 212. A sleeve 214 is inserted through the outside of the pull rod 212. A connecting rod 215 is movably installed at one end of the sleeve 214. A base 216 is movably installed at the bend and end of the connecting rod 215. A positioning device is fixedly installed below the adapter plate 1. The bottom end of the positioning rod 217 is movably mounted with a parallel rod 218. The end disc structure of the pull rod 212 is slidably connected to the inner wall of the sleeve 214. A ring-shaped protrusion is provided on the inner side of one end of the sleeve 214. The spring 213 is located between the ring-shaped protrusion on the inner wall of the sleeve 214 and the end disc structure of the pull rod 212. The base 216 and the connecting rod 215 are rotatably connected. The base 216 at the bend of the connecting rod 215 is fixedly connected to the adapter plate 1, and the base 216 at the end of the connecting rod 215 is fixedly connected to the movable plate 221.

[0029] Specifically, the end position of the pull rod 212 is restricted, the pull rod 212 and the sleeve 214 form a sliding connection, and a rubber layer increases the sliding damping between the contact surfaces of the pull rod 212 and the sleeve 214. The end of the sleeve 214 is rotatably connected to one end of the connecting rod 215. At the corner of the connecting rod 215, a rotatable connection is formed between the base 216 and the adapter plate 1. When the device moves, the vibration is transmitted to the connecting rod 215 through the moving component 22. The connecting rod 215 rotates around the corner hinge, causing a change in the relative position between the sleeve 214 and the pull rod 212, thus converting the vibration energy into vibration energy at the contact surface between the pull rod 212 and the sleeve 214. The heat from the rubber layer is absorbed by the disc structure at the end of the pull rod 212 and the annular protrusion on the inner side of the sleeve 214, which compresses the spring 213. The elastic force generated by the spring 213 during compression provides power for the pull rod 212 and sleeve 214 to reset, thereby achieving a shock-absorbing effect. Furthermore, the parallel rod 218 and the connecting rod 215 are parallel to each other on one side of the rotation axis. The positioning rod 217, parallel rod 218, connecting rod 215, and movable plate 221 form a parallelogram structure. When the tilt angle of the connecting rod 215 changes, the movable plate 221 can maintain a parallel state, preventing the moving component 22 from rotating due to the change in the posture of the connecting rod 215.

[0030] The movable component 22 includes a movable plate 221 installed below the damping component 21. A drive shaft 222 is inserted and installed below the movable plate 221, and guide wheels 223 are fixedly installed at both ends of the drive shaft 222. A motor 224 is fixedly installed above the movable plate 221. A pulley 225 is fixedly installed on the outer side of the motor 224 shaft and the center of the drive shaft 222. A drive belt 226 is sleeved on the outer side of the pulley 225. Specifically, the movable plate 221 is connected to the connecting rod 215 via the base 216, and the center of the transmission shaft 222 is rotatably connected to one end of the parallel rod 218. The movable plate 221 provides support for the motor 224. The pulley 225 on the outside of the motor 224 shaft is connected to the pulley 225 at the center of the transmission shaft 222 via the transmission belt 226, so that the motor 224 can drive the transmission shaft 222 to rotate. The guide wheels 223 fixed at both ends of the transmission shaft 222 are widened to prevent changes in the rail spacing from affecting the movement of the device.

[0031] The ranging component 23 is located below the adapter plate 1 and is used to detect the rail spacing and the distance between the movable plate 221 and the adapter plate 1. The ranging component 23 includes a crossbeam 231 fixedly installed above the adapter plate 1. Electric push rods 232 are fixedly installed on both sides of the lower part of the crossbeam 231. Limiting blocks 233 are fixedly installed at the movable end of the electric push rods 232. Limiting rods 234 are fixedly installed at the front end of the adapter plate 1. A laser ranging module 235 is fixedly installed at the center of the limiting block 233 and the end of the limiting rod 234.

[0032] Specifically, the electric actuator 232 is fixedly connected to the adapter plate 1 via the crossbeam 231. The laser ranging module 235 at the bottom of the electric actuator 232 is horizontally installed via the limiting block 233 and is used to measure the distance between the two rails. The spacing between the two electric actuators 232 is fixed. The distance between the two rails can be calculated by monitoring the data from the laser ranging module 235 at the bottom of the two electric actuators 232 and the spacing between the electric actuators 232. After comparing with the standard distance, it can be determined whether the rails are off-center. The laser ranging module 235 at the end of the limiting rod 234 is vertically installed to monitor the height change of the movable plate 221 in the moving component 22, so that the controller 264 in the control component 26 can adjust the extension and retraction of the electric actuator 232 so that the height of the ranging module at the bottom of the electric actuator 232 is always on the same horizontal line as the rail.

[0033] The support assembly 24 is disposed above the adapter plate 1 and is used to isolate the vibration generated during the operation of the marking assembly 25. The support assembly 24 includes a connecting shaft 241 fixedly installed above the adapter plate 1, a leaf spring 242 movably installed above the connecting shaft 241, a connecting frame 243 tightly attached to the center of the leaf spring 242, and a support plate 244 fixedly installed above the connecting frame 243.

[0034] Specifically, the support plate 244 is used to support the upper marking component 25 and the control component 26, and the leaf spring 242 is used to prevent the vibration of the marking component 25 during operation from affecting the operation of the lower ranging component 23.

[0035] A marking component 25, positioned above the support component 24, is used to mark the offset position of the rail. The marking component 25 includes a support frame 251 fixedly mounted above the support plate 244. A paint bucket 252 is fixedly mounted at the center of the support frame 251. A pressure sensor 253 is inserted above the paint bucket 252. A one-way valve 254 is fixedly mounted at the center of the top of the paint bucket 252. An air supply pipe 255 is fixedly mounted at the top of the one-way valve 254, and an air pump 256 is fixedly mounted at the end of the air supply pipe 255. A diversion pipe 257 is fixedly mounted at the bottom of the paint bucket 252. The two ends of 257 are fixedly installed with hoses 258, the ends of which are fixedly installed with solenoid valves 259. Below the solenoid valves 259, a fan-shaped nozzle 2510 is fixedly installed. The outside of the fan-shaped nozzle 2510 is fitted with a mounting bracket 2511. The bottom of the paint bucket 252 is a conical structure. The inner cavity of the paint bucket 252 is fixedly connected to the exhaust end of the air pump 256 through a one-way valve 254 and an air supply pipe 255. The diversion pipe 257 is a "T" shaped structure. The hoses 258 at both ends of the diversion pipe 257 pass through the support plate 244. The top of the mounting bracket 2511 is fixedly connected to the adapter plate 1.

[0036] Specifically, the paint bucket 252 consists of a bucket body and a top cover connected to the bucket body by bolts. Paint can be added to the paint bucket 252 by removing the top cover. The air pump 256 delivers air into the paint bucket 252 through the air supply pipe 255, increasing the air pressure inside the paint bucket 252. At the same time, the solenoid valve 259 between the end of the hose 258 and the fan-shaped nozzle 2510 controls the opening and closing of the paint oil circuit. The solenoid valve 259 is controlled by the controller 264 in the control component 26. When the data monitored by the laser ranging module 235 used to monitor the track spacing deviates significantly from the standard distance data, the controller 264 opens the solenoid valve 259. The paint inside the paint bucket 252 will be sprayed out from the bottom of the fan-shaped nozzle 2510 under the influence of air pressure, thereby covering the surface of the track or the roadbed filler at the bottom, forming a marking point. The air pressure sensor 253 is electrically connected to the controller 264. When it detects that the air pressure inside the paint bucket 252 is lower than the standard, it will drive the air pump 256 to pressurize.

[0037] The detection mechanism 2 also includes a control component 26, which is located above the support component 24 and is used to output control signals. The control component 26 includes a protective box 261 fixedly installed above the support plate 244. A battery 262 is fixedly installed inside the protective box 261. A top cover 263 is installed on the top of the protective box 261 via a hinge. A controller 264 is fitted into the center of the top cover 263. An antenna 265 is fixedly installed on the top of the top cover 263.

[0038] Specifically, the protective box 261 is used to protect the battery 262, which can power the air pump 256 and the motor 224. The top cover 263 is connected to the protective box 261 on one side via a hinge and on the other side via a buckle. The controller 264 integrates a main control chip of model STM32H743VIT6, an industrial computer of model DI-1000, a LoRa module of model F8L10C-10, a touch screen of model OM-101, and a local data recording module of model W25Q256JVFIQ. The combination of the main control chip and the industrial computer can achieve high-speed operation to adapt to the movement speed of the device. The LoRa module ensures that data can be wirelessly transmitted through the antenna 265.

[0039] This invention also discloses an operation method for a laser measurement device for horizontal displacement behind rail transit engineering, comprising the following steps: S1: Set up the device above the rail that needs to be measured, so that the moving component 22 fits into the rail; S2: After adjusting the distance to be detected by the control component 26, start the device by the control component 26; S3: After the device is started, the moving component 22 drives the device to move, and at the same time the ranging component 23 starts to measure the distance between the two rails. S4: The control component 26 receives the detection data from the ranging component 23 in real time, and marks the rail with paint when the data is abnormal through the marking component 25.

[0040] Specifically, the model number of motor 224 is [model number], the model number of laser ranging module 235 is [model number], the model number of air pressure sensor 235 is [model number], and the model number of solenoid valve 259 is [model number]. Furthermore, any content not described in detail in this specification is prior art known to those skilled in the art.

[0041] During operation, the device is mounted above the target rail, with the guide wheel 223 of the moving component 22 engaging with the rail. After adjusting the preset detection distance via the controller 264 of the control component 26, the device is started. The motor 224 operates, and the pulley 225 on the outer side of its shaft drives the pulley 225 at the center of the transmission shaft 222 to rotate via the transmission belt 226. The transmission shaft 222 drives the guide wheels 223 at both ends to roll, enabling the device to move along the rail. During the movement, vibration is transmitted to the connecting rod 215 via the movable plate 221. The connecting rod 215 rotates around the base 216 at the bend, causing the sleeve 214 to slide relative to the pull rod 212. The disc structure at the end of the pull rod 212 compresses the spring 213. At the same time, the positioning rod 217, the parallel rod 218, the connecting rod 215, and the movable plate 221 form a parallelogram structure, keeping the movable plate 221 parallel and achieving vibration damping. In the synchronously activated ranging component 23, the electric actuator 232 adjusts the position of the limiting block 233, the laser ranging module 235 at the center of the limiting block 233 measures the distance between the two rails, and the laser ranging module 235 at the end of the limiting rod 234 monitors the height of the movable plate 221. The controller 264 adjusts the extension and retraction of the electric actuator 232 according to the height data to ensure that the ranging module and the rail are on the same horizontal line. The controller 264 receives ranging data in real time. When the data is abnormal, the air pump 256 inflates the paint bucket 252 through the air supply pipe 255 and the one-way valve 254. The air pressure sensor 253 monitors the air pressure in real time. The controller 264 opens the solenoid valve 259, and the paint in the paint bucket 252 is sprayed out from the fan-shaped nozzle 2510 through the diverter pipe 257 and the hose 258 to mark the offset position. The leaf spring 242 of the support component 24 isolates the vibration of the marking component 25 during operation. The battery 262 in the protective box 261 supplies power to each component, and the antenna 265 realizes wireless data transmission.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A laser measurement device for horizontal displacement behind rails in rail transit engineering, characterized in that, Includes an adapter plate (1), and a detection mechanism (2) is provided above the adapter plate (1) for detecting rail offset. The detection mechanism (2) includes: Vibration damping component (21) is located below the adapter plate (1) and is used to isolate the vibration generated by the moving component (22) during operation; The movable component (22) includes a movable plate (221) installed below the damping component (21). A drive shaft (222) is inserted and installed below the movable plate (221), and guide wheels (223) are fixedly installed at both ends of the drive shaft (222). A motor (224) is fixedly installed above the movable plate (221). A pulley (225) is fixedly installed on the outer side of the motor (224) shaft and at the center of the drive shaft (222). A drive belt (226) is sleeved on the outer side of the pulley (225). The ranging component (23) is located below the adapter plate (1) and is used to detect the rail spacing and the distance between the movable plate (221) and the adapter plate (1); A support component (24) is disposed above the adapter plate (1) to isolate the vibration generated during the operation of the marking component (25); A marking component (25) is positioned above the support component (24) and is used to mark the offset position of the rail.

2. The laser measurement device for horizontal displacement behind rail transit engineering according to claim 1, characterized in that: The vibration damping component (21) includes a connecting block (211) fixedly installed below the adapter plate (1). A pull rod (212) is movably installed below the connecting block (211). A spring (213) is sleeved on the outside of the pull rod (212). A sleeve (214) is inserted on the outside of the pull rod (212). A connecting rod (215) is movably installed at one end of the sleeve (214). A base (216) is movably installed at the bend and end of the connecting rod (215). A positioning rod (217) is fixedly installed below the adapter plate (1). A parallel rod (218) is movably installed at the bottom end of the positioning rod (217).

3. The laser measurement device for horizontal displacement behind rail transit engineering according to claim 2, characterized in that: The end disc structure of the pull rod (212) is slidably connected to the inner wall of the sleeve (214). A ring-shaped protrusion is provided on the inner side of one end of the sleeve (214). The spring (213) is located between the ring-shaped protrusion on the inner wall of the sleeve (214) and the end disc structure of the pull rod (212). The base (216) and the connecting rod (215) are rotatably connected. The base (216) at the bend of the connecting rod (215) is fixedly connected to the adapter plate (1), and the base (216) at the end of the connecting rod (215) is fixedly connected to the movable plate (221).

4. The laser measurement device for horizontal displacement behind rail transit engineering according to claim 1, characterized in that: The ranging component (23) includes a crossbeam (231) fixedly installed above the adapter plate (1), electric push rods (232) fixedly installed on both sides of the lower part of the crossbeam (231), a limit block (233) fixedly installed at the movable end of the electric push rod (232), a limit rod (234) fixedly installed at the front end of the adapter plate (1), and a laser ranging module (235) fixedly installed at the center of the limit block (233) and the end of the limit rod (234).

5. A laser measurement device for horizontal displacement behind rail transit engineering according to claim 1, characterized in that: The support assembly (24) includes a connecting shaft (241) fixedly installed above the adapter plate (1), a leaf spring (242) movably installed above the connecting shaft (241), a connecting frame (243) tightly fitted at the center of the leaf spring (242), and a support plate (244) fixedly installed above the connecting frame (243).

6. A laser measurement device for horizontal displacement behind rail transit engineering according to claim 1, characterized in that: The marking assembly (25) includes a support frame (251) fixedly installed above the support plate (244). A paint bucket (252) is fixedly installed at the center of the support frame (251). A pressure sensor (253) is inserted above the paint bucket (252). A one-way valve (254) is fixedly installed at the center of the top of the paint bucket (252). An air supply pipe (255) is fixedly installed at the top of the one-way valve (254), and an air pump (256) is fixedly installed at the end of the air supply pipe (255).

7. A laser measurement device for horizontal displacement behind rail transit engineering according to claim 6, characterized in that: A diversion pipe (257) is fixedly installed at the bottom of the paint bucket (252). A hose (258) is fixedly installed at both ends of the diversion pipe (257). A solenoid valve (259) is fixedly installed at the end of the hose (258). A fan-shaped nozzle (2510) is fixedly installed below the solenoid valve (259). A mounting bracket (2511) is fitted on the outside of the fan-shaped nozzle (2510).

8. A laser measurement device for horizontal displacement behind rail transit engineering according to claim 7, characterized in that: The bottom of the paint bucket (252) is conical. The inner cavity of the paint bucket (252) is fixedly connected to the exhaust end of the air pump (256) through a one-way valve (254) and an air supply pipe (255). The diversion pipe (257) is a "T" shaped structure. The hoses (258) at both ends of the diversion pipe (257) pass through the support plate (244). The top of the mounting bracket (2511) is fixedly connected to the adapter plate (1).

9. A laser measurement device for horizontal displacement behind rail transit engineering according to claim 1, characterized in that: The detection mechanism (2) also includes a control component (26), which is located above the support component (24) and is used to output control signals. The control component (26) includes a protective box (261) fixedly installed above the support plate (244). A battery (262) is fixedly installed inside the protective box (261). A top cover (263) is installed on the top of the protective box (261) via a hinge. A controller (264) is fitted into the center of the top cover (263). An antenna (265) is fixedly installed on the top of the top cover (263).

10. According to a laser measurement method for horizontal displacement behind rails in rail transit engineering, using a laser measurement device for horizontal displacement behind rails in rail transit engineering as described in any one of claims 1-9, characterized in that: Includes the following steps: S1: Set up the device above the rail to be measured, so that the moving component (22) fits into the rail; S2: After adjusting the distance to be detected by the control component (26), start the device by the control component (26); S3: After the device is started, the moving component (22) drives the device to move, and at the same time the ranging component (23) starts to measure the distance between the two rails; S4: The control component (26) receives the detection data from the ranging component (23) in real time, and marks the rail with paint when the data is abnormal through the marking component (25).

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