A rail-mounted power tunnel scanning device

By utilizing the track-mounted power tunnel scanning device and the collaborative design of the drive mechanism and laser scanner, the problems of time-consuming and labor-intensive deployment and blind spots in existing power tunnel scanning devices in track tunnels have been solved, achieving full-range tunnel coverage and efficient all-scenario information collection.

CN224515237UActive Publication Date: 2026-07-17WUHAN DONGHU UNIV +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHAN DONGHU UNIV
Filing Date
2025-07-08
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing power tunnel scanning devices are time-consuming and labor-intensive to deploy in tunnels with train tracks. The fixed scanning angle leads to blind spots, requiring manual adjustments, resulting in low efficiency and difficulty in achieving full coverage.

Method used

The design incorporates a track-mounted power tunnel scanning device. A drive mechanism controls the synchronous rotation of the active track wheels, allowing the laser scanner to move automatically along the track. The scanning range is expanded through a stepped mounting base and the reciprocating rotation of the laser scanner. Combined with pulsed and phase-type laser scanners, the device achieves simultaneous acquisition of macroscopic and microscopic data.

Benefits of technology

It achieves automatic scanning that covers the entire tunnel interior, reducing manual adjustments, improving scanning efficiency, and enabling the acquisition of information for the entire scene in a single operation without the need for secondary scanning.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the technical field of tunnel scanning, and discloses a track type electric power tunnel scanning device, which comprises a horizontal plate, two vertical plates are fixedly installed at the bottom of the horizontal plate, bearing seats are fixedly installed at the bottom of each vertical plate, a same horizontal shaft is rotationally installed on the two bearing seats, connecting shafts are fixedly installed at the two ends of the horizontal shaft, driving track wheels are fixedly installed at the ends of the two connecting shafts away from each other, and a vertical shaft rotationally penetrates through the top of the horizontal plate. The application has the following advantages and effects: the scanning device can be controlled to stably move along the train track in the tunnel for automatic scanning operation, two laser scanners are arranged, and the horizontal reciprocating rotation of the two laser scanners can expand the scanning horizontal range, ensure the all-around coverage of the tunnel section, and realize the acquisition of all-scene information in one operation without secondary scanning.
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Claims

1. A rail-mounted power tunnel scanning device, characterized by, The system includes a horizontal plate (1), with two vertical plates (2) fixedly installed at the bottom of the horizontal plate (1). Each of the two vertical plates (2) has a bearing seat (3) fixedly installed at the bottom. The same horizontal shaft (4) is rotatably installed on the two bearing seats (3). Both ends of the horizontal shaft (4) are fixedly installed with connecting shafts (5). The ends of the two connecting shafts (5) that are far apart from each other are fixedly installed with active track wheels (6). The top of the horizontal plate (1) is rotatably penetrated by a vertical shaft (7). A stepped mounting seat (8) is fixedly installed at the top of the vertical shaft (7). Two laser scanners (9) are fixedly installed at the top of the stepped mounting seat (8). Both laser scanners (9) are used to scan the inside of the tunnel. A drive mechanism is provided between the two vertical plates (2). The drive mechanism can control the rotation of the horizontal shaft (4) and the reciprocating rotation of the vertical shaft (7).

2. The track-mounted electric tunnel scanning device according to claim 1, characterized in that: The drive mechanism includes a crossbeam (10), a motor (11), a sector gear (12), a driving spur gear (13), a disc (14), a torsion spring (15), an external gear ring (16), a drive shaft (17), a driven spur gear (18), a driving bevel gear (19), and a driven bevel gear (20). The crossbeam (10) is fixedly installed between the two vertical plates (2). The motor (11) is fixedly installed on the bottom inner wall of the cross plate (1). The sector gear (12) and the driving spur gear (13) are both fixedly sleeved on the output shaft end of the motor (11). The sector gear (12) is located above the driving spur gear (13). The disc (14) is fixedly installed at the bottom end of the vertical shaft (7). The torsion spring (15) is fixedly installed on the disc (14). On the vertical shaft (7), the top end of the torsion spring (15) is fixedly connected to the bottom of the horizontal plate (1), the torsion spring (15) is sleeved on the vertical shaft (7), the external gear ring (16) is fixedly sleeved on the outer circular wall of the disc (14), the sector gear (12) meshes intermittently with the external gear ring (16), the drive shaft (17) rotates through the horizontal beam (10), the driven spur gear (18) is fixedly sleeved on the top end of the drive shaft (17), the driven spur gear (18) meshes with the driving spur gear (13), the driving bevel gear (19) is fixedly sleeved on the bottom end of the drive shaft (17), the driven bevel gear (20) is fixedly sleeved on the horizontal shaft (4), and the driving bevel gear (19) meshes with the driven bevel gear (20).

3. The track-mounted electric tunnel scanning device according to claim 1, characterized in that: The top of the horizontal plate (1) has a circular hole, and a bearing is fixedly sleeved on the vertical shaft (7). The outer ring of the bearing is fixedly connected to the inner wall of the circular hole.

4. The rail-mounted power tunnel scanning apparatus of claim 2, wherein: The top of the crossbeam (10) is provided with a second circular hole, and a second bearing is fixedly sleeved on the drive shaft (17). The outer ring of the second bearing is fixedly connected to the inner wall of the second circular hole.

5. The rail-mounted power tunnel scanning apparatus of claim 1, wherein: Vertical support rods (21) are fixedly installed at the four bottom corners of the horizontal plate (1), and U-shaped frames (22) are fixedly installed at the bottom ends of the four vertical support rods (21). Auxiliary rollers (23) are rotatably installed on the four U-shaped frames (22).

6. The rail-mounted power tunnel scanning apparatus of claim 1, wherein: Counterweights (24) are fixedly installed on the top left and right sides of the horizontal plate (1).

7. The rail-mounted power tunnel scanning apparatus of claim 2, wherein: A power supply box (25) is fixedly installed on the top of the horizontal plate (1) behind the stepped mounting base (8). A battery pack (26) is fixedly installed inside the power supply box (25). The two laser scanners (9) and the motor (11) are electrically connected to the battery pack (26).

8. The rail-mounted power tunnel scanning apparatus of claim 1, wherein: A handrail (27) is fixedly installed on the rear side wall of the horizontal plate (1).

9. The rail-mounted power tunnel scanning apparatus of claim 1, wherein: The bottom of the stepped mounting base (8) is nested with two ball bearings, which are symmetrically distributed on both sides of the vertical shaft (7). Both ball bearings are in rolling contact with the top surface of the horizontal plate (1).