A verticality detection device for rail transit construction

Abstract

This application relates to the field of rail transit construction technology and discloses a verticality detection device for rail transit construction, including a connecting plate and a first base plate. Three rotating rods are rotatably connected to the outer wall of the connecting plate, and extension rods are slidably connected to the outer walls of the rotating rods. A foot pad is fixedly connected to the side of the extension rod away from the connecting plate, and a locking buckle is provided on the foot pad. A sliding column is fixedly connected to the bottom of the foot pad. Three grooves are formed on the surface of the first base plate for installing second sliding rods. The inner wall of the sliding column is slidably connected to the outer wall of the second sliding rod. A protective shell is fixedly connected to the top of the connecting plate, and a protective assembly is provided inside the protective shell. By setting a drive assembly in conjunction with a lead screw and a winding wheel structure, and using a single motor as a power source, while driving the connecting frame to move to unfold the rotating rods and extension rods for support, the device simultaneously drives the first and second rotating shafts to rotate, controlling the winding of the first and second steel cables respectively.

Description

Technical Field

[0001] This invention relates to the field of rail transit construction technology, specifically to a verticality detection device for rail transit construction. Background Technology

[0002] In the construction of rail transit systems, verticality testing is a crucial step, directly impacting the construction quality of the track structure and operational safety. Typically, construction workers use precision measuring instruments such as total stations to test the verticality of the tracks and related columns.

[0003] Existing inspection methods mostly employ split-type or manually adjustable support equipment. During use, operators typically need to manually unfold the tripod or other support structure, level and secure it, and then install the total station onto the support platform. When it's necessary to change the inspection point, the disassembly or storage process often needs to be reversed. This cumbersome manual operation not only increases the labor intensity of construction workers but also results in low work efficiency when facing long-distance track inspection tasks that require frequent point relocation.

[0004] Furthermore, as a precision optical instrument, the total station is quite sensitive to environmental factors. Existing testing support equipment typically lacks effective protective structures for the instrument itself, leaving it exposed to the elements for extended periods even when not in operation (such as during transport or standby). Construction site environments are often complex, with risks such as high dust levels and susceptibility to impacts. Direct exposure can easily damage the instrument or contaminate the lens, thus affecting measurement accuracy and the equipment's lifespan.

[0005] Furthermore, the stability of the testing equipment is a prerequisite for ensuring data accuracy. Traditional support equipment, when placed on tracks, often relies solely on its own weight or simple mechanical locking for positioning. In the presence of vibrations or wind at the construction site, the equipment is prone to slight swaying or displacement. Although some equipment is equipped with manual clamps to enhance stability, this further increases the complexity of operation and cannot simultaneously meet the needs of rapid movement and stable measurement. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a verticality testing device for rail transit construction. It solves the problem that construction site environments are often complex, with risks such as dust and easy impacts. Direct exposure can easily lead to instrument damage or lens contamination, thus affecting the accuracy of measurements and the service life of the equipment.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a verticality detection device for rail transit construction, comprising a connecting plate and a first base plate. Three rotating rods are rotatably connected to the outer wall of the connecting plate. Extension rods are slidably connected to the outer walls of the rotating rods. A foot pad is fixedly connected to the side of the extension rod away from the connecting plate. A locking buckle is provided on the foot pad. A sliding column is fixedly connected to the bottom of the foot pad. Three grooves are formed on the surface of the first base plate for installing second sliding rods. The inner wall of the sliding column is slidably connected to the outer wall of the second sliding rod. A protective shell is fixedly connected to the top of the connecting plate. A protective component is provided inside the protective shell. A sleeve is fixedly connected to the bottom of the connecting plate. A second base plate is fixedly connected to the bottom of the sleeve. A quick-deployment component is provided at the bottom of the second base plate. A driving component is provided inside the sleeve. A stabilizing component is provided at the bottom of the first base plate. The protective assembly includes a first slide rod, which is fixedly connected inside the protective shell. A sliding plate is slidably connected between the outer walls of the two first slide rods. A total station is fixedly connected to the top of the sliding plate. A first spring is sleeved on the outer wall of the first slide rod.

[0008] Preferably, the quick-deployment assembly includes a lead screw rotatably connected to the bottom of the second base plate. A connecting frame is threaded onto the outer wall of the lead screw. Two first connecting rods are rotatably connected to the outer wall of the connecting frame. A second connecting rod is rotatably connected to the end of the first connecting rod away from the connecting frame. The end of the second connecting rod away from the first connecting rod is rotatably connected to the side of the rotating rod away from the connecting plate. A limit block is fixedly connected to the bottom of the lead screw.

[0009] Preferably, the drive assembly includes a first rotating shaft, a driving bevel gear, and a motor. The bottom of the first rotating shaft is fixedly connected to the top of the lead screw. The driving bevel gear is rotatably connected inside the sleeve. A driven bevel gear is fixedly connected to the bottom of the outer wall of the first rotating shaft. A first take-up reel is fixedly connected to the top of the outer wall of the first rotating shaft. A first steel cable is sleeved on the outer wall of the first take-up reel. The output end of the motor is fixedly connected inside the driving bevel gear.

[0010] Preferably, the stabilizing component includes a guide rod and a fixing plate. The guide rod is fixedly connected to the inner wall of the first base plate, and a T-shaped block is slidably connected to the outer wall of the guide rod. A clamping plate is fixedly connected to the bottom of the T-shaped block.

[0011] Preferably, the inner wall of the protective shell has two grooves, the top of the slide plate is fixedly connected to two sliders, the outer wall of the sliders is slidably connected to the inside of the grooves, and the top of the first slide rod is fixedly connected to a limiting plate.

[0012] Preferably, the driving bevel gear and the driven bevel gear mesh with each other, and the end of the first steel cable away from the first take-up reel is fixedly connected to the bottom of the slide plate.

[0013] Preferably, one end of the first spring is fixedly connected to the bottom of the skateboard, and the other end of the first spring is fixedly connected to the inner wall of the protective shell.

[0014] Preferably, a second rotating shaft is fixedly connected to the bottom of the lead screw, a second take-up reel is fixedly connected to the bottom of the second rotating shaft, a second steel cable is wound around the outer wall of the second take-up reel, and the end of the second steel cable away from the second take-up reel is fixedly connected to the outer wall of the clamp.

[0015] Preferably, a second spring is fixedly connected to the outer wall of the guide rod, one end of the second spring is fixedly connected to the inner wall of the first base plate, and the other end of the second spring is fixedly connected to the outer wall of the clamping plate.

[0016] Preferably, the bottom of the first base plate is rotatably connected to two guide wheels, and a rubber plate is installed on the outer wall of the clamping plate.

[0017] This invention provides a verticality testing device for rail transit construction. It has the following advantages: 1. This invention, through the configuration of a drive assembly in conjunction with a lead screw and winding wheel structure, utilizes a single motor as a power source. While driving the connecting frame to move and unfold the rotating rod and extension rod for support, it simultaneously drives the first and second rotating shafts to rotate, controlling the winding of the first and second steel cables respectively. This allows the equipment to simultaneously lower and expose the total station and clamp its bottom to the track while completing the support setup, simplifying on-site operation procedures, ensuring consistency between equipment unfolding, instrument positioning, and base locking, and improving testing efficiency.

[0018] 2. This invention, by setting a protective shell and protective components on the top of the connecting plate, utilizes the restoring force of the first spring to keep the total station normally inside the protective shell, only lowering it to the outside for operation under the traction of the steel cable. This effectively prevents damage to the total station from external impacts, dust, or rain during equipment transport or idle periods, providing excellent physical protection, thus ensuring the measurement accuracy of the precision instrument and extending its service life.

[0019] 3. This invention achieves automatic clamping and fixing of the track by setting a stabilizing component at the bottom of the first base plate and using a second steel cable to pull the clamping plate inward along the guide rod, combined with the elastic tension of the second spring. This ensures that the equipment remains relatively stationary with the track during the testing process, preventing minor displacement of the equipment due to external wind or vibration from affecting the accuracy of the verticality test data. At the same time, the rubber plate design on the surface of the clamping plate avoids damage to the track surface caused by rigid clamping. Attached Figure Description

[0020] Figure 1 This is a first-view perspective perspective view of the present invention; Figure 2 This is a second-view perspective perspective view of the present invention; Figure 3 This is a schematic diagram of the lead screw of the present invention; Figure 4 This is a schematic diagram of the active bevel gear of the present invention; Figure 5 This is a schematic diagram of the total station of the present invention; Figure 6 for Figure 5 Enlarged view of point A in the middle; Figure 7 This is a cross-sectional view of the first base plate of the present invention; Figure 8 for Figure 7 Enlarged view at point B in the middle; Figure 9 This is a schematic diagram of the second take-up reel of the present invention.

[0021] The components are as follows: 1. Connecting plate; 2. Rotating rod; 3. Extension rod; 4. First base plate; 5. Lock; 6. Foot pad; 7. Protective shell; 8. First sliding rod; 9. Limiting plate; 10. Slide plate; 11. Total station; 12. First spring; 13. Sleeve; 14. Second base plate; 15. Lead screw; 16. Connecting frame; 17. First connecting rod; 18. Second connecting rod; 19. Limiting block; 20. First rotating shaft; 21. Driving bevel gear; 22. Driven bevel gear; 23. First take-up reel; 24. First steel cable; 25. Second sliding rod; 26. Sliding column; 27. Second rotating shaft; 28. Second take-up reel; 29. ​​Guide rod; 30. T-block; 31. Clamping plate; 32. Slide groove; 33. Sliding block; 34. Second spring; 35. Second steel cable; 36. Rubber plate; 37. Fixing plate; 38. Guide wheel; 39. Motor. Detailed Implementation

[0022] The technical solutions in 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.

[0023] Example: Please see the appendix Figure 1 - Appendix Figure 9This invention provides a verticality testing device for rail transit construction. The device mainly consists of a support and adjustment mechanism, a protective mechanism, a drive transmission mechanism, and a stabilizing clamping mechanism. The connecting plate 1 serves as the main load-bearing component, and its outer wall is rotatably connected to three circumferentially distributed rotating rods 2 via pins or bearings. These three rotating rods 2 form the tripod support structure of the device. To adapt to different terrains or height requirements, extension rods 3 are sleeved and slidably connected to the outer wall of the rotating rods 2, allowing the extension rods 3 to extend and retract within the rotating rods 2. A foot pad 6 is fixed to the end of the extension rod 3 away from the connecting plate 1. A latch 5 is provided at the connection between the extension rod 3 and the rotating rods 2. The latch 5 can be a cam locking mechanism or a bolt locking mechanism, used to fix the extension rod 3 after its length is adjusted, preventing retraction.

[0024] To ensure the synchronization and stability of the equipment during deployment, vertically downward sliding columns 26 are fixed to the bottom of the foot pads 6. Correspondingly, three radially distributed grooves are formed on the surface of the first base plate 4 at the bottom of the equipment, and second sliding rods 25 are horizontally installed in the grooves. The bottom end of the sliding column 26 is provided with a sliding hole or sliding sleeve, allowing it to fit onto the outer wall of the second sliding rod 25 and slide along its axial direction. This mating structure restricts the three support legs to move only radially, preventing torsion during deployment.

[0025] A protective shell 7 is fixedly installed on the top of the connecting plate 1. The protective shell 7 is a hollow structure used to house and protect precision instruments. Inside the protective shell 7 is a protective assembly whose core function is to enable automatic raising, lowering, and concealment of the testing instrument. Specifically, the protective assembly includes a first slide rod 8 vertically fixed to the inner wall of the protective shell 7, and a horizontal slide plate 10 slidably installed between the two first slide rods 8. The total station 11 is fixedly installed on the top of the slide plate 10 by bolts or clips. To ensure the smooth movement of the slide plate 10, two vertical grooves 32 are correspondingly formed on the inner wall of the protective shell 7. A slider 33, which mates with the groove 32, is fixed to the top edge of the slide plate 10. The slider 33 slides within the groove 32, limiting the displacement trajectory of the slide plate 10. Furthermore, a limit plate 9 is fixed to the top of the first slide rod 8 to prevent the slide plate 10 from detaching from the slide rod. A first spring 12 is sleeved on the outer wall of the first slide rod 8. One end of the first spring 12 abuts against the bottom of the slide plate 10, and the other end abuts against the bottom of the inner wall of the protective shell 7 or a related fixed bracket. In its natural state, the first spring 12 is in an extended or slightly compressed state, providing an upward thrust to lift the slide plate 10 and the total station 11 into the protective shell 7, thus providing dustproof and impact-proof protection.

[0026] A hollow sleeve 13 is fixed at the bottom center of the connecting plate 1, and a second base plate 14 is connected to the bottom end of the sleeve 13. This area integrates the drive assembly and the quick-deployment assembly for automated operation of the equipment. The drive assembly includes a motor 39 that provides power, and the output shaft of the motor 39 is fixedly connected to the driving bevel gear 21. The driving bevel gear 21 and the driven bevel gear 22 mesh with each other, thereby converting the horizontal rotational motion of the motor 39 into vertical rotational motion. The driven bevel gear 22 is fixed to the bottom of the outer wall of the first rotating shaft 20, and the bottom end of the first rotating shaft 20 is fixedly connected to the top end of the lead screw 15. The bottom end of the lead screw 15 is rotatably connected to the second base plate 14 via a bearing. A limit block 19 is also provided at the bottom of the lead screw 15 to prevent excessive screwing.

[0027] The quick-deployment assembly utilizes the rotation of the lead screw 15 to open and close the support legs. The connecting frame 16, acting as a transmission nut, is threaded onto the outer wall of the lead screw 15. When the lead screw 15 rotates, the connecting frame 16 moves up and down along the lead screw axis. Two first connecting rods 17 are hinged to the outer wall of the connecting frame 16. The other end of each first connecting rod 17 is hinged to a second connecting rod 18, and the end of the second connecting rod 18 is hinged to the lower middle part of the rotating rod 2. Through this linkage mechanism, when the connecting frame 16 moves downward, it pushes the connecting rod to expand outward, thereby causing the rotating rod 2 and the extension rod 3 to unfold outward; conversely, it retracts.

[0028] To enable the total station 11 to automatically emerge when the equipment is deployed, a first take-up reel 23 is fixed to the upper part of the first rotating shaft 20, and a first steel cable 24 is wound around the first take-up reel 23. One end of the first steel cable 24 is fixed to the take-up reel, and the other end passes through the connecting plate 1 and other structures to connect to the bottom of the slide plate 10. When the motor 39 drives the deployment of the support legs, the first rotating shaft 20 rotates synchronously and winds up the first steel cable 24. The steel cable overcomes the elastic force of the first spring 12 and pulls the slide plate 10 downward, causing the total station 11 to descend from the protective shell 7 and emerge, entering the working state.

[0029] For the special working conditions of rail transit construction, a stabilizing component is installed at the bottom of the equipment to grip the track. A second rotating shaft 27 is coaxially fixed to the bottom of the lead screw 15, and a second take-up reel 28 is fixed on the second rotating shaft 27, on which a second steel cable 35 is wound. Stabilizing mechanisms are symmetrically arranged on both sides of the bottom of the first base plate 4. Each stabilizing mechanism includes a horizontal guide rod 29 fixed to the inner wall of the first base plate 4. A T-shaped block 30 is slidably connected to the guide rod 29. A clamping plate 31 for gripping the track is connected to the bottom of the T-shaped block 30. A rubber plate 36 for increasing friction and protecting the track is attached to the inner side of the clamping plate 31. A second spring 34 is sleeved on the outer wall of the guide rod 29, with its two ends abutting against the inner wall of the first base plate 4 and the outer wall of the clamping plate 31, respectively, always providing an outward pushing force to keep the clamping plate 31 in an open state. The ends of the second steel cable 35 branch off and are connected to the outer walls of the clamping plates 31 on both sides.

[0030] When the equipment is deployed, motor 39 drives lead screw 15 to rotate. In addition to deploying the support legs and lowering the total station, lead screw 15 also drives the second rotating shaft 27 and the second take-up reel 28 to rotate, tightening the second steel cable 35. The second steel cable 35 pulls the clamping plates 31 on both sides inward to overcome the resistance of the second spring 34, thus tightly clamping the track. Guide wheels 38 are also installed at the bottom of the first base plate 4. Before the clamping plates 31 are tightened or slightly loosened, the equipment can move on the track via the guide wheels 38, facilitating continuous multi-point verticality testing.

[0031] In summary, the forward and reverse rotation of motor 39 enables one-button deployment / locking and storage / protection of the equipment. When motor 39 rotates forward, the support legs deploy, the total station descends and is exposed, and the bottom clamping plate clamps the rail; when motor 39 rotates in reverse, the support legs retract, the first spring 12 resets to push the total station back into the protective shell 7, and the second spring 34 resets to release the clamping plate from the rail. The control circuit of motor 39, the power module, and the specific data processing methods of the total station 11 can be implemented by those skilled in the art with reference to existing technologies, and will not be elaborated upon here.

[0032] Working principle: In actual use, the rotating rod 2 and the extension rod 3 are initially in a retracted state, and the total station 11 is completely housed inside the protective shell 7. The clamping plate 31 remains open under the action of the second spring 34. The operator uses the guide wheels 38 at the bottom of the first base plate 4 to place and push the equipment to the track position to be tested.

[0033] Upon reaching the designated testing point, motor 39 is started. The output of motor 39 drives the active bevel gear 21 to rotate, which in turn drives the driven bevel gear 22 meshing with it to rotate, thereby causing the first rotating shaft 20 and the lead screw 15 to rotate synchronously. The rotation of the lead screw 15 drives the connecting frame 16 to move downward along its axis. The connecting frame 16 pushes the second connecting rod 18 outward through the hinged first connecting rod 17, forcing the rotating rod 2 to unfold outward with the connecting plate 1 as the center. During this process, the sliding column 26 at the bottom of the foot pad 6 is restricted to sliding radially on the second sliding rod 25 on the surface of the first base plate 4, ensuring the synchronicity and stability of the tripod support structure's unfolding.

[0034] Simultaneously with the unfolding of the support legs, the instrument is exposed and its bottom is clamped. The rotation of the first shaft 20 drives the first take-up reel 23 to wind up the first steel cable 24. The first steel cable 24 overcomes the elastic force of the first spring 12 and pulls the slide plate 10 to slide down the groove 32 on the inner wall of the protective shell 7, so that the total station 11 extends out from the bottom of the protective shell 7 and enters the working state.

[0035] At the same time, the second rotating shaft 27 at the bottom of the lead screw 15 drives the second take-up wheel 28 to rotate, winding the second steel cable 35. The second steel cable 35 pulls the clamping plates 31 and T-blocks 30 on both sides to slide inward along the guide rod 29, overcoming the resistance of the second spring 34 and causing the clamping plates 31 to move closer to the center of the track until the rubber plate 36 is tightly attached to and clamps the side wall of the track, thereby firmly locking the first base plate 4 on the track and preventing the equipment from shifting or shaking during the testing process.

[0036] After the testing task is completed, the control motor 39 rotates in the reverse direction. The lead screw 15 reverses and drives the connecting frame 16 to move upward, which in turn drives the rotating rod 2 to retract via the linkage mechanism; at the same time, the first steel cable 24 and the second steel cable 35 are released. After losing traction, the first spring 12 releases its elastic potential energy to push the sliding plate 10 upward, pushing the total station 11 back into the protective shell 7 for automatic storage; the second spring 34 releases its elastic potential energy to push the clamping plate 31 to reset outward and release the track. At this time, the equipment returns to its initial movable state, making it easy to transfer to the next testing point via the guide wheel 38.

Claims

1. A verticality testing device for rail transit construction, comprising a connecting plate (1) and a first base plate (4), characterized in that, The outer wall of the connecting plate (1) is rotatably connected to three rotating rods (2), the outer wall of the rotating rods (2) is slidably connected to an extension rod (3), the side of the extension rod (3) away from the connecting plate (1) is fixedly connected to a foot pad (6), the foot pad (6) is provided with a buckle (5), the bottom of the foot pad (6) is fixedly connected to a sliding column (26), the surface of the first base plate (4) is provided with three grooves for installing second sliding rods (25), the inner wall of the sliding column (26) is slidably connected to the outer wall of the second sliding rod (25), the top of the connecting plate (1) is fixedly connected to a protective shell (7), the protective shell (7) is provided with a protective component, the bottom of the connecting plate (1) is fixedly connected to a sleeve (13), the bottom of the sleeve (13) is fixedly connected to a second base plate (14), the bottom of the second base plate (14) is provided with a quick unfolding component, the inside of the sleeve (13) is provided with a driving component, and the bottom of the first base plate (4) is provided with a stabilizing component; The protective assembly includes a first slide rod (8), which is fixedly connected inside the protective shell (7). A sliding plate (10) is slidably connected between the outer walls of the two first slide rods (8). A total station (11) is fixedly connected to the top of the sliding plate (10). A first spring (12) is sleeved on the outer wall of the first slide rod (8).

2. The verticality testing equipment for rail transit construction according to claim 1, characterized in that, The rapid deployment assembly includes a lead screw (15), which is rotatably connected to the bottom of the second base plate (14). A connecting frame (16) is threaded onto the outer wall of the lead screw (15). Two first connecting rods (17) are rotatably connected to the outer wall of the connecting frame (16). A second connecting rod (18) is rotatably connected to the end of the first connecting rod (17) away from the connecting frame (16). The end of the second connecting rod (18) away from the first connecting rod (17) is rotatably connected to the side of the rotating rod (2) away from the connecting plate (1). A limit block (19) is fixedly connected to the bottom of the lead screw (15).

3. The verticality testing equipment for rail transit construction according to claim 2, characterized in that, The drive assembly includes a first rotating shaft (20), a driving bevel gear (21), and a motor (39). The bottom of the first rotating shaft (20) is fixedly connected to the top of the lead screw (15). The driving bevel gear (21) is rotatably connected inside the sleeve (13). A driven bevel gear (22) is fixedly connected to the bottom of the outer wall of the first rotating shaft (20). A first take-up reel (23) is fixedly connected to the top of the outer wall of the first rotating shaft (20). A first steel cable (24) is sleeved on the outer wall of the first take-up reel (23). The output end of the motor (39) is fixedly connected inside the driving bevel gear (21).

4. The verticality testing equipment for rail transit construction according to claim 2, characterized in that, The stabilizing component includes a guide rod (29) and a fixing plate (37). The guide rod (29) is fixedly connected to the inner wall of the first base plate (4). A T-shaped block (30) is slidably connected to the outer wall of the guide rod (29). A clamping plate (31) is fixedly connected to the bottom of the T-shaped block (30).

5. The verticality testing equipment for rail transit construction according to claim 1, characterized in that, The inner wall of the protective shell (7) has two grooves (32), and the top of the slide plate (10) is fixedly connected to two sliders (33). The outer wall of the sliders (33) is slidably connected inside the grooves (32), and the top of the first slide rod (8) is fixedly connected to a limiting plate (9).

6. A verticality testing device for rail transit construction according to claim 3, characterized in that, The driving bevel gear (21) and the driven bevel gear (22) mesh with each other, and the end of the first steel cable (24) away from the first take-up reel (23) is fixedly connected to the bottom of the slide plate (10).

7. A verticality testing device for rail transit construction according to claim 1, characterized in that, One end of the first spring (12) is fixedly connected to the bottom of the slide plate (10), and the other end of the first spring (12) is fixedly connected to the inner wall of the protective shell (7).

8. A verticality testing device for rail transit construction according to claim 4, characterized in that, The bottom of the lead screw (15) is fixedly connected to a second rotating shaft (27), the bottom of the second rotating shaft (27) is fixedly connected to a second take-up reel (28), the outer wall of the second take-up reel (28) is wound with a second steel cable (35), and the end of the second steel cable (35) away from the second take-up reel (28) is fixedly connected to the outer wall of the clamp (31).

9. A verticality testing device for rail transit construction according to claim 4, characterized in that, The guide rod (29) is fixedly connected to the outer wall of a second spring (34). One end of the second spring (34) is fixedly connected to the inner wall of the first base plate (4), and the other end of the second spring (34) is fixedly connected to the outer wall of the clamping plate (31).

10. A verticality testing device for rail transit construction according to claim 4, characterized in that, The bottom of the first base plate (4) is rotatably connected to two guide rail wheels (38), and the outer wall of the clamping plate (31) is fitted with a rubber plate (36).

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