Maintenance car for rail transit

By designing a maintenance vehicle for rail transit and adopting a drive-type detection structure and a spray-painted marking structure, the problems of low efficiency and poor stability in traditional track inspection have been solved, achieving efficient, accurate, stable, and intelligent track inspection and avoiding damage to electrical equipment.

CN223850605UActive Publication Date: 2026-01-30QINGDAO METRO GRP CO LTD
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Patent Information

Application Number
CN202520494854.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-20
Publication Date
2026-01-30
Estimated Expiration
2035-03-20

AI Technical Summary

Technical Problem

Traditional track inspection methods are inefficient, difficult to detect comprehensively and accurately, and the inspection devices are easily affected by foreign objects or geometric deformations on the track surface, resulting in insufficient inspection stability and easy damage to electrical equipment.

Method used

A maintenance vehicle for rail transit was designed, which adopts a drive detection structure and a spray-painted marking structure. It includes components such as moving wheels, concave detection limit blocks, scanning cameras, and sound wave transmitters to achieve stable detection and avoid collisions with electrical equipment. It is equipped with batteries and photovoltaic charging panels to provide energy support, and wireless signal transmitters and positioning devices to enhance its intelligence level.

Benefits of technology

It achieves efficient, accurate, and stable detection of tracks, avoids damage to electrical equipment, provides sustained energy support and remote monitoring, and improves the safety and intelligence level of detection.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223850605U_ABST
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Abstract

The utility model discloses a maintenance car for rail transit, which comprises a detection car body, a driving detection structure and an identification spraying structure, the driving detection structure and the identification spraying structure are arranged on the detection car body, and the utility model relates to the technical field of rail maintenance. The driving detection structure achieves stable and accurate detection of the track through cooperation of a concave detection limiting block, a convex telescopic block and other assemblies, meanwhile, collision to electrical equipment in the operation process is avoided, and the safety and reliability of detection are improved. The design of the moving driving assembly enables the detection vehicle body to adapt to different rail conditions, vibration and collision in the moving process are effectively absorbed through the buffering effect of the lifting spring set and the lifting linear bearing set, and the stability of detection is guaranteed.
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Description

TECHNICAL FIELD

[0001] The utility model relates to track maintenance technical field, concretely is a track traffic is with the maintenance vehicle. BACKGROUND

[0002] In the railway transportation system, the safety and stability of the track are the key factors to ensure the safety of train operation. However, with the increase of train operation frequency and the extension of track service life, various damages may occur on the track surface and internal structure, such as cracks, wear, foreign matter attachment and geometric deformation, etc. If these problems are not found and repaired in time, serious safety accidents may be caused.

[0003] The traditional track detection method often relies on manual inspection, which is not only inefficient, but also difficult to detect the track comprehensively and accurately. Especially in bad weather or night conditions, the difficulty and risk of manual inspection will greatly increase.

[0004] In order to solve this problem, some track detection devices based on mechanical and electronic technology have appeared in the market. However, these devices often have the following problems:

[0005] Insufficient detection accuracy and stability: some devices are easily affected by foreign matter or geometric deformation on the track surface during detection, resulting in inaccurate detection results. At the same time, the device may be affected by bumps or vibrations during movement, affecting the detection stability.

[0006] Insufficient protection of electrical equipment: during detection, the device may collide with electrical equipment on the track, causing equipment damage or detection interruption. In view of this, the above problems are studied in depth, and the present case is produced. CONTENT OF THE UTILITY MODEL

[0007] In order to achieve the above purpose, the utility model is realized by the following technical scheme: a track maintenance vehicle, comprising: a detection vehicle body, a driving detection structure and a spraying identification structure, the driving detection structure and the spraying identification structure are installed on the detection vehicle body, the driving detection structure comprises: three pairs of moving wheels, a moving driving assembly, a pair of concave detection limiting blocks, six pairs of convex telescopic blocks, a detection limiting shaft group, a detection limiting sleeve spring group, six pairs of limiting concave bearing blocks, a plurality of moving extrusion wheels, a plurality of scanning cameras, a plurality of sound wave emitters and a plurality of sound wave receivers;

[0008] Three pairs of the moving wheels and a pair of the concave detection limiting blocks are installed on the detection vehicle body through the moving drive assembly, three pairs of extrusion limiting grooves are respectively formed on a pair of the concave detection limiting blocks, six pairs of the convex telescopic blocks are respectively movably inserted into the inner sides of the six pairs of the extrusion limiting grooves, the detection limiting shaft groups are respectively inserted into the inner sides of the six pairs of the extrusion limiting grooves, and the detection limiting shaft groups are respectively movably inserted into the six pairs of the convex telescopic blocks, the detection limiting sleeve spring groups are respectively sleeved on the detection limiting shaft groups, six pairs of the limiting concave bearing blocks are respectively installed on the six pairs of the convex telescopic blocks, a plurality of the moving extrusion wheels are respectively installed on the six pairs of the limiting concave bearing blocks, and a plurality of the scanning cameras, a plurality of the sound wave emitters and a plurality of the sound wave receivers are respectively installed on a pair of the concave detection limiting blocks.

[0009] Preferably, the moving drive assembly comprises three pairs of lifting back-shaped supporting blocks, three pairs of lifting bearing blocks, three pairs of sleeved gear boxes, three pairs of moving drive machines, a lifting spring group, a lifting linear bearing group, two pairs of concave angle bearing blocks, a pair of I-shaped connecting rods and a lifting limiting shaft group.

[0010] The three pairs of the lifting back-shaped supporting blocks are installed on the detection vehicle body, the three pairs of the lifting bearing blocks are respectively movably inserted into the inner sides of the three pairs of the lifting back-shaped supporting blocks, the three pairs of the moving wheels are respectively inserted into the three pairs of the lifting bearing blocks, the three pairs of the sleeved gear boxes are respectively sleeved on the three pairs of the moving wheels, the driving ends of the three pairs of the moving drive machines are respectively connected to the three pairs of the sleeved gear boxes, the lifting linear bearing group is respectively inserted into the three pairs of the lifting back-shaped supporting blocks, the lifting limiting shaft group is respectively movably inserted into the three pairs of the lifting bearing blocks, the lifting spring group is respectively sleeved on the lifting limiting shaft group, the lifting linear bearing group is evenly inserted into the three pairs of the lifting bearing blocks, the two pairs of the concave angle bearing blocks are respectively installed on a pair of the concave detection limiting blocks and the detection vehicle body, and the pair of the I-shaped connecting rods are respectively connected to the two pairs of the concave angle bearing blocks.

[0011] Preferably, the spraying identification structure comprises two pairs of concave sleeved blocks, two pairs of U-shaped spraying pipes, a spraying raw material box group, a spraying pump, a multi-channel valve and a plurality of atomizing nozzles.

[0012] The two pairs of the concave sleeved blocks are installed at the bottom ends of the two sides of the detection vehicle body, the two pairs of the U-shaped spraying pipes are respectively installed on the two pairs of the concave sleeved blocks, the spraying raw material box group is installed on the detection vehicle body, the multi-channel valve is connected to the spraying raw material box group, the spraying pump is connected to the multi-channel valve, the multi-channel valve is connected to the two pairs of the U-shaped spraying pipes, and the plurality of the atomizing nozzles are evenly installed on the two pairs of the U-shaped spraying pipes.

[0013] Preferably, the detection vehicle body is provided with a battery and a photovoltaic charging plate.

[0014] Preferably, the detection vehicle body is provided with a wireless signal transmitter.

[0015] Preferably, the detection vehicle body is provided with a positioning instrument.

[0016] Advantages

[0017] The utility model provides a kind of track traffic inspection car. With following advantages, this one kind track traffic inspection car, drive detection structure is cooperated by concave detection limiting block and convex telescopic block etc. Component, realizes the stable, accurate detection to track, while avoiding the knock of electrical equipment in operation process, improve the security and reliability of detection;The design of mobile drive component makes that detection vehicle body can adapt to different track conditions, by the buffering effect of lifting spring group and lifting linear bearing group, effectively absorb the vibration and knock in moving process, guarantee the stability of detection;Spraying identification structure can rapidly identify the track problem detected, facilitate subsequent maintenance work;The battery and photovoltaic charging plate equipped on detection vehicle body provide lasting energy support, wireless signal transmitter and positioning instrument realize remote monitoring and accurate positioning, further improve the intelligent level of detection;The detection vehicle body design has multiple advantages such as high efficiency, accuracy, stability, intelligence, is the preferred scheme in track detection field. ACCURACY

[0018] Figure 1 It is the front view of the utility model described a kind of track traffic inspection car.

[0019] Figure 2 It is the drive detection structure overhead view of the utility model described a kind of track traffic inspection car.

[0020] Figure 3 It is the drive detection structure side view of the utility model described a kind of track traffic inspection car.

[0021] Figure 4 It is the drive detection structure three-dimensional diagram of the utility model described a kind of track traffic inspection car.

[0022] In the diagram: 1. Detection vehicle body; 2. Moving wheel; 3. Concave detection limit block; 4. Convex telescopic block; 5. Detection limit shaft assembly; 6. Detection limit spring assembly; 7. Limit concave bearing block; 8. Moving extrusion wheel; 9. Scanning camera; 10. Sound wave transmitter; 11. Sound wave receiver; 12. Lifting and lowering support block; 13. Lifting and lowering bearing block; 14. Gearbox assembly; 15. Moving drive motor; 16. Lifting and lowering spring assembly; 17. Concave angle bearing block; 18. I-shaped connecting rod; 19. Lifting and lowering limit shaft assembly. Detailed Implementation

[0023] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires. Appropriate controllers and encoders should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0025] Example

[0026] like Figures 1-4 As shown, the drive detection structure and the spray marking structure are installed on the detection vehicle body 1. The drive detection structure includes: three pairs of moving wheels 2, a moving drive assembly, a pair of concave detection limit blocks 3, six pairs of convex telescopic blocks 4, a detection limit shaft group 5, a detection limit sleeve spring group 6, six pairs of limit concave bearing blocks 7, multiple moving extrusion wheels 8, multiple scanning cameras 9, multiple sound wave transmitters 10, and multiple sound wave receivers 11.

[0027] Specifically, three pairs of movable wheels 2 and one pair of concave detection limiting blocks 3 are mounted on the detection vehicle body 1 via the movable drive assembly. Each pair of concave detection limiting blocks 3 has three pairs of extrusion limiting grooves. Six pairs of convex telescopic blocks 4 are movably inserted into the inner side of the six pairs of extrusion limiting grooves. Detection limiting shaft groups 5 are inserted into the inner side of the six pairs of extrusion limiting grooves and are movably inserted into the six pairs of convex telescopic blocks 4. Detection limiting sleeve spring groups 6 are sleeved on the detection limiting shaft groups 5. Six pairs of limiting concave bearing blocks 7 are mounted on the six pairs of convex telescopic blocks 4. Multiple movable extrusion wheels 8 are mounted on the six pairs of limiting concave bearing blocks 7. Multiple scanning cameras 9, multiple sound wave transmitters 10, and multiple sound wave receivers 11 are mounted on a pair of concave detection limiting blocks 3.

[0028] It should be noted that, in the above, a pair of concave detection limit blocks 3 are movably sleeved on the track, and the detection limit sleeve spring set 6 is stably horizontally telescoped along the detection limit shaft set 5, the convex telescoping block 4 on the detection limit sleeve spring set 6 is driven to stably horizontally telescope along the detection limit shaft set 5, the limit concave bearing block 7 on the convex telescoping block 4 is driven, and the plurality of moving extrusion wheels 8 on the limit concave bearing block 7 are extruded downward in the vertical direction on both sides of the track, thereby correcting and limiting the position of the pair of concave detection limit blocks 3, and simultaneously scanning the track by the plurality of scanning cameras 9, the plurality of sound wave emitters 10 and the plurality of sound wave receivers 11 on the pair of concave detection limit blocks 3, capturing the track surface cracks, wear, foreign matter (such as gravel, metal fatigue fragments) or geometric deformation (such as abnormal track gauge) by high-resolution images, emitting high-frequency sound waves (usually >20kHz) to penetrate the track material, and using the discontinuity of the material (such as cracks, cavities) to reflect / scatter the characteristics of the sound waves; capture the reflected wave, analyze the defect position and size by time difference (ToF) or waveform distortion, thereby stably scanning the track and avoiding bumping of electrical equipment during operation.

[0029] As shown in Figures 1-4 , the mobile driving assembly comprises three pairs of lifting back-shaped support blocks 12, three pairs of lifting bearing blocks 13, three pairs of sleeve gear boxes 14, three pairs of mobile driving machines 15, a lifting spring set 16, a lifting linear bearing set, two pairs of concave angle bearing blocks 17, a pair of I-shaped connecting rods 18 and a lifting limit shaft set 19;

[0030] Specifically, three pairs of the lifting back-shaped support blocks 12 are installed on the detection vehicle body 1, three pairs of the lifting bearing blocks 13 are movably inserted into the inner sides of the three pairs of the lifting back-shaped support blocks 12, three pairs of the mobile wheels 2 are inserted into the three pairs of the lifting bearing blocks 13, three pairs of the sleeve gear boxes 14 are sleeved on the three pairs of the mobile wheels 2, the driving ends of the three pairs of the mobile driving machines 15 are connected to the three pairs of the sleeve gear boxes 14, the lifting linear bearing set is inserted into the three pairs of the lifting back-shaped support blocks 12, and the lifting limit shaft set 19 is movably inserted into the three pairs of the lifting bearing blocks 13, the lifting spring set 16 is sleeved on the lifting limit shaft set 19, the lifting linear bearing set is uniformly inserted into the three pairs of the lifting bearing blocks 13, two pairs of the concave angle bearing blocks 17 are installed on a pair of the concave detection limit blocks 3 and the detection vehicle body 1, and a pair of the I-shaped connecting rods 18 are connected to the two pairs of the concave angle bearing blocks 17;

[0031] It should be noted that, as described above, the lifting bearing block 13 on the movable wheel 2 drives the lifting bearing block 13 to move stably along the lifting limit shaft assembly 19. The lifting bearing block 13 buffers the lifting spring assembly 16. The lifting linear bearing assembly buffers the lifting limit shaft assembly 19. The movable drive motor 15 on the lifting bearing block 13 runs, driving the gearbox 14 on the drive end of the movable drive motor 15 to run. This drives the movable wheel 2 inside the gearbox 14 to move with buffer. The lifting spring assembly 16 buffers the movement of bumps and protrusions that occur during the movement.

[0032] like Figures 1-4 As shown, the spray marking structure includes: two pairs of concave mounting blocks, two pairs of U-shaped spray pipes, a spray material box assembly, a spray pump, a multi-channel valve, and multiple atomizing nozzles;

[0033] Specifically, two pairs of concave mounting blocks are installed on both sides of the bottom of the testing vehicle body 1, two pairs of U-shaped spray pipes are respectively installed on the two pairs of concave mounting blocks, the spray material tank assembly is installed on the testing vehicle body 1, the multi-channel valve is connected to the spray material tank assembly, the spray pump is connected to the multi-channel valve, the multi-channel valve is connected to the two pairs of U-shaped spray pipes, and multiple atomizing nozzles are evenly installed on the two pairs of U-shaped spray pipes;

[0034] It should be noted that, as described above, the spray pump and multi-channel valves operate to divert different pigments from the inside of the spray raw material tank assembly to the inside of the U-shaped spray pipes on the two pairs of concave mounting blocks. The track is then sprayed through multiple atomizing nozzles on the U-shaped spray pipes, thereby marking the locations of track problems and thus marking the track with different labels for different problems.

[0035] As a preferred option, the detection vehicle body 1 is further equipped with a storage battery and a photovoltaic charging panel.

[0036] As a preferred option, the detection vehicle 1 is further equipped with a wireless signal transmitter.

[0037] As a preferred option, the detection vehicle 1 is further equipped with a positioning device.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rail transit inspection car, comprising: The detection vehicle body, the driving detection structure and the spraying identification structure are installed on the detection vehicle body, characterized in that the driving detection structure comprises three pairs of moving wheels, a moving driving assembly, a pair of concave detection limiting blocks, six pairs of convex telescopic blocks, a detection limiting shaft group, a detection limiting spring set, six pairs of limiting concave bearing blocks, a plurality of moving extrusion wheels, a plurality of scanning cameras, a plurality of sound wave emitters and a plurality of sound wave receivers. The three pairs of moving wheels and the pair of concave detection limiting blocks are installed on the detection vehicle body through the moving driving assembly, a pair of concave detection limiting blocks are respectively provided with three pairs of extrusion limiting grooves, six pairs of convex telescopic blocks are respectively movably inserted into the inner sides of the six pairs of extrusion limiting grooves, the detection limiting shaft group is respectively inserted into the inner sides of the six pairs of extrusion limiting grooves and movably inserted into the six pairs of convex telescopic blocks, the detection limiting spring set is respectively sleeved on the detection limiting shaft group, six pairs of limiting concave bearing blocks are respectively installed on the six pairs of convex telescopic blocks, a plurality of moving extrusion wheels are respectively installed on the six pairs of limiting concave bearing blocks, a plurality of scanning cameras, a plurality of sound wave emitters and a plurality of sound wave receivers are respectively installed on a pair of concave detection limiting blocks.

2. The rail transit inspection car according to claim 1, characterized in that, The moving driving assembly comprises three pairs of lifting meandering support blocks, three pairs of lifting bearing blocks, three pairs of sleeved gear boxes, three pairs of moving driving machines, a lifting spring group, a lifting linear bearing group, two pairs of concave angle bearing blocks, a pair of I-shaped connecting rods and a lifting limiting shaft group. The three pairs of lifting meandering support blocks are installed on the detection vehicle body, the three pairs of lifting bearing blocks are respectively movably inserted into the inner sides of the three pairs of lifting meandering support blocks, the three pairs of moving wheels are respectively inserted into the three pairs of lifting bearing blocks, the three pairs of sleeved gear boxes are respectively sleeved on the three pairs of moving wheels, the driving ends of the three pairs of moving driving machines are respectively connected to the three pairs of sleeved gear boxes, the lifting linear bearing group is respectively inserted into the three pairs of lifting meandering support blocks, the lifting limiting shaft group is respectively movably inserted into the three pairs of lifting bearing blocks, the lifting spring group is respectively sleeved on the lifting limiting shaft group, the lifting linear bearing group is evenly inserted into the three pairs of lifting bearing blocks, the two pairs of concave angle bearing blocks are respectively installed on a pair of concave detection limiting blocks and the detection vehicle body, and the pair of I-shaped connecting rods are respectively connected to the two pairs of concave angle bearing blocks.

3. The rail transit inspection car according to claim 2, wherein, The spraying identification structure comprises two pairs of concave sleeved blocks, two pairs of U-shaped spraying pipes, a spraying raw material box group, a spraying pump, a multi-channel valve and a plurality of atomizing nozzles. Two pairs of the concave sleeve blocks are installed at the bottom ends of two sides of the detection vehicle body, two pairs of the U-shaped spray pipes are respectively installed on the two pairs of the concave sleeve blocks, the spray raw material box group is installed on the detection vehicle body, the multi-channel valve is connected to the spray raw material box group, the spray pump is connected to the multi-channel valve, the multi-channel valve is connected to the two pairs of the U-shaped spray pipes, and multiple atomizing nozzles are uniformly installed on the two pairs of the U-shaped spray pipes.

4. The rail transit inspection car according to claim 3, characterized in that, The detection vehicle body is provided with a storage battery and a photovoltaic charging plate.

5. The rail transit inspection car according to claim 4, wherein, The detection vehicle body is provided with a wireless signal transmitter.

6. The rail transit inspection car according to claim 5, wherein, The detection vehicle body is provided with a positioner.