Maintenance car for rail transit

By adding a tightening device to the outside of the maintenance vehicle body, the stability problem of the maintenance vehicle for rail transit when moving on the track is solved, the stability and safety of the maintenance vehicle for rail transit is improved, and the work efficiency and cleaning effect are ensured.

CN223187496UActive Publication Date: 2025-08-05XIAN JIAOTONG ENG COLLEGE
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Patent Information

Application Number
CN202422325007.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-23
Publication Date
2025-08-05
Estimated Expiration
2034-09-23

AI Technical Summary

Technical Problem

The existing rail transit maintenance vehicles lack limit structure when moving on the track, resulting in poor stability and affecting work efficiency and safety.

Method used

The tightening device is added to the outside of the maintenance vehicle body, including the first extension rod, a fixing ring, a support plate, a telescopic rod, a spring and a carriage, and the stability and safety of track movement are improved through the coordination of these components.

Benefits of technology

It enhances the stability of the maintenance vehicle on the track, reduces tilt and bumps, improves work efficiency and safety, and cleans the track surface to ensure the accuracy of maintenance results.

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Abstract

The utility model belongs to the technical field of traffic, and discloses a maintenance car for rail transit, which comprises a maintenance car body and a first extension rod, the outer side of the first extension rod is sleeved with a first fixing ring, the outer side of the first fixing ring is fixedly connected with a first supporting plate, and the outer side of the first supporting plate is fixedly connected with a telescopic rod. The outer side of the telescopic rod is sleeved with a spring, the other end of the spring is fixedly connected with a second fixing ring, the outer side of the first extension rod is sleeved with a sliding frame, a second extension rod is slidably arranged in a sliding groove of the sliding frame, and the outer side of the bottom end of the first extension rod is fixedly connected with an abutting disc. The problems that when an existing maintenance car moves on a rail, the maintenance car moves through walking wheels, the maintenance car is not provided with a limiting structure, the stability of the maintenance car moving on the rail is low, the traffic maintenance car is additionally inclined and bumped, and the working efficiency and the maintenance result of the rail traffic maintenance car are affected are solved.
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Description

Technical Field

[0001] The utility model belongs to the technical field of transportation, in particular to a maintenance vehicle for rail transportation. Background Art

[0002] Rail transit maintenance vehicles are mainly used to detect the geometric state and unevenness of the track so that timely repair measures can be taken to ensure the normal operation of railway vehicles. Rail transit maintenance vehicles are important tools for detecting the state of the track and ensuring the normal use of the track.

[0003] At the same time, the patent application number 202321969737.5 discloses a rail transit maintenance vehicle, including a base, a dust removal mechanism is provided on the top of the base, the dust removal mechanism includes a dust collector, the front of the dust collector is rotatably connected to one end of two conduits, and the other ends of the two conduits are fixedly connected to two shells respectively.

[0004] However, in the implementation of relevant technologies, it was found that the above-mentioned rail transit maintenance vehicle has the problem that the existing maintenance vehicle moves on the track by moving wheels, and there is no limiting structure on the maintenance vehicle, which causes the maintenance vehicle to have low stability when moving on the track, causing additional tilting and bumping of the transportation maintenance vehicle, affecting the working efficiency and maintenance results of the rail transit maintenance vehicle. Utility Model Content

[0005] In order to solve the problems raised in the above-mentioned background technology, the utility model provides a maintenance vehicle for rail transit, which has the advantage of adding a device for tightening the track on the outside of the maintenance vehicle body, thereby improving the stability of the device moving on the track during the movement of the device, thereby improving the safety of the device and reducing the risk of rollover.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a rail transit maintenance vehicle, comprising a maintenance vehicle body and a first extension rod, the outer side of the first extension rod is sleeved with a first fixing ring, the outer side of the first fixing ring is fixedly connected to a first support plate, the outer side of the first support plate is fixedly connected to a telescopic rod, the outer side of the telescopic rod is sleeved with a spring, the other end of the spring is fixedly connected to a second fixing ring, the outer side of the first extension rod is sleeved with a slide, the interior of the slide is provided with a slide groove, the slide groove of the slide is slidably provided with a second extension rod, the outer side of the bottom end of the first extension rod is fixedly connected to a tightening plate, and the bottom end of the slide is arranged at the top of the tightening plate.

[0007] Preferably, a fixed seat is fixedly connected to the left side of the maintenance vehicle body, a support rod is slidably provided inside the fixed seat, a first rotating arm is sleeved on the outer side of the support rod, the bottom end of the first rotating arm is fixedly connected to the first rotating wheel, the bottom end of the first rotating arm is provided with a second rotating arm, the bottom end of the second rotating arm is fixedly connected to the second rotating wheel, and the second rotating arm is slidably provided on the outer side of the support rod.

[0008] Preferably, the top end of the first extension rod is fixedly connected to the top end of the first rotating arm, and the top end of the second extension rod is fixedly connected to the bottom end of the second rotating arm.

[0009] Preferably, the front end of the maintenance vehicle body is fixedly connected to a buffer plate, the bottom end of the buffer plate is fixedly connected to a shock-absorbing seat, the bottom end of the shock-absorbing seat is fixedly connected to a tightening seat, and the front end of the tightening seat is rotatably connected to a driving wheel.

[0010] Preferably, a friction wheel is provided on the right side of the driving wheel, a scraper is provided against the top end of the friction wheel, and the outer side of the scraper is fixedly connected to the bottom end of the buffer plate.

[0011] Preferably, a third extension block is fixedly connected to the right side of the maintenance vehicle body, and a brush is rotatably connected to the bottom end of the third extension block, and two groups of brushes are provided.

[0012] Preferably, a passenger compartment is fixedly connected to the top of the maintenance vehicle body, and a square groove is provided inside the top of the passenger compartment.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. The utility model adds a device to the inner side of the track to tighten the maintenance vehicle. When the maintenance vehicle body tilts, the spring presses the rotating arm to reduce the inclination caused by centrifugal action, which is more stable when running on the track and improves safety. The first rotating wheel is tightly clamped to the inner wall of the track, reducing the clearance generated during driving and improving riding comfort.

[0015] 2. The utility model adds a brush on the right side of the main body of the maintenance vehicle. The brush first cleans the stones and dust on the outside of the track, and adds a water spray device on the outside to clean the surface of the track. The friction wheel then crushes the moisture inside the track, and cooperates with the scraper on the top to scrape off the water on the top of the friction wheel, which is convenient for later maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic structural diagram of the first rotating wheel of the utility model;

[0018] Figure 3 This is a schematic diagram of the friction wheel structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the slide of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the second rotating wheel of the utility model.

[0021] In the figure: 1. Maintenance vehicle body; 2. Passenger compartment; 3. Fixed seat; 4. Support rod; 5. First rotating arm; 6. First rotating wheel; 7. Second rotating arm; 8. Second rotating wheel; 9. First extension rod; 10. First fixing ring; 11. First support plate; 12. Telescopic rod; 13. Spring; 14. Slide; 15. Clamping plate; 16. Second fixing ring; 17. Second extension rod; 18. Driving wheel; 19. Buffer plate; 20. Shock-absorbing seat; 21. Friction wheel; 22. Scraper; 23. Third extension block; 24. Brush; 25. Clamping seat; 26. Water nozzle. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] like Figures 1 to 5 As shown, the utility model provides a maintenance vehicle for rail transit, including a maintenance vehicle body 1 and a first extension rod 9, the outer side of the first extension rod 9 is sleeved with a first fixing ring 10, the outer side of the first fixing ring 10 is welded and fixed with a first support plate 11, the outer side of the first support plate 11 is fixedly connected with a telescopic rod 12, the outer side of the telescopic rod 12 is sleeved with a spring 13, the other end of the spring 13 is fixedly connected with a second fixing ring 16, the spring 13 is used for tightening between the first fixing ring 10 and the second fixing ring 16, the outer side of the first extension rod 9 is sleeved with a slide 14, the interior of the slide 14 is provided with a slide groove, the interior of the slide groove of the slide 14 is slidably provided with a second extension rod 17, the bottom end of the first extension rod 9 slides inside the slide 14, and the tightening plate 15 is used to support and fix the top end of the slide 14.

[0024] Specifically, a fixed seat 3 is fixedly welded to the left side of the maintenance vehicle body 1, and a support rod 4 is slidably set inside the fixed seat 3. A first rotating arm 5 is sleeved on the outside of the support rod 4, and the bottom end of the first rotating arm 5 is fixedly connected to the first rotating wheel 6. The first rotating wheel 6 rotates on the inner side of the track and is clamped with the second rotating arm 7. The bottom end of the second rotating arm 7 is fixedly connected to the second rotating wheel 8. The second rotating arm 7 is slidably set on the outside of the support rod 4 for clamping the outside of the maintenance vehicle body 1.

[0025] Furthermore, the top end of the first extension rod 9 is welded and fixedly connected to the top end of the first rotating arm 5 , and the top end of the second extension rod 17 is welded and fixedly connected to the bottom end of the second rotating arm 7 .

[0026] Furthermore, the front end of the maintenance vehicle body 1 is fixedly connected to a buffer plate 19, the bottom end of the buffer plate 19 is fixedly connected to a shock-absorbing seat 20, the bottom end of the shock-absorbing seat 20 is fixedly connected to a tightening seat 25, and the bottom end of the maintenance vehicle body 1 is internally rotatably connected to a driving wheel 18, which drives the maintenance vehicle body 1 to move.

[0027] It is worth noting that a friction wheel 21 is provided on the right side of the driving wheel 18, and a scraper 22 is provided against the top of the friction wheel 21. The scraper 22 scrapes off the residual water stains on the friction wheel 21, and the outer side of the scraper 22 is welded and fixed to the bottom end of the buffer plate 19.

[0028] It is worth noting that a third extension block 23 is fixedly connected to the right side of the maintenance vehicle body 1, and a brush 24 is rotatably connected to the bottom end of the third extension block 23. The brush 24 rotates on the outside of the track to facilitate the removal of dust and stones on the outside of the track.

[0029] It is worth mentioning that the top of the maintenance vehicle body 1 is fixedly connected to the passenger compartment 2, and a square groove is provided inside the top of the passenger compartment 2.

[0030] Among them, the brush 24 of the maintenance vehicle body 1 is the existing technology and will not be described in detail; at the same time, the utility model also includes a power supply, a controller and a switch, which are not the main technical points of this patent and will not be described in detail.

[0031] Working principle:

[0032] First, the staff goes to the interior of the passenger compartment 2 at the top of the maintenance vehicle body 1, and then starts the driving wheel 18. The driving wheel 18 drives the maintenance vehicle body 1 to move on the outside of the track. The third extension block 23 at the front end of the maintenance vehicle body 1 drives the brush 24 to clean the track to remove dust and stones. The driving wheel 18 moves on the top of the track, and the water nozzle 26 sprays water to the track. After spraying water, the friction wheel 21 rolls the water on the track and scrapes the friction wheel 21 clean through the scraper 22. Then, when the maintenance vehicle body 1 is When turning, the second rotating arm 7 on the outside of the support rod 4 slides toward the direction of the first rotating arm 5, the second extension rod 17 slides in the slide groove inside the slide 14, and slides toward the direction of the first extension rod 9, and the first support plate 11 welded to the first fixing ring 10 on the outside of the first extension rod 9 at the bottom end of the first rotating arm 5 squeezes the outer telescopic rod 12 and the outer spring 13 against the second fixing ring 16 on the outside of the second extension rod 17, pushing the second rotating arm 7 at the top end of the second extension rod 17 in the opposite direction to reduce shaking during operation.

[0033] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rail transit maintenance vehicle, comprising a maintenance vehicle body (1) and a first extension rod (9), characterized in that: The outer side of the first extension rod (9) is provided with a first fixing ring (10), the outer side of the first fixing ring (10) is fixedly connected to a first support plate (11), the outer side of the first support plate (11) is fixedly connected to a telescopic rod (12), the outer side of the telescopic rod (12) is provided with a spring (13), the other end of the spring (13) is fixedly connected to a second fixing ring (16), the outer side of the first extension rod (9) is provided with a slide (14), the interior of the slide (14) is provided with a sliding groove, the interior of the slide (14) is provided with a second extension rod (17) slidingly provided, the outer side of the bottom end of the first extension rod (9) is fixedly connected to a tightening disk (15), and the bottom end of the slide (14) is provided at the top of the tightening disk (15).

2. A rail transit maintenance vehicle according to claim 1, characterized in that: The left side of the maintenance vehicle body (1) is fixedly connected to a fixed seat (3), the interior of the fixed seat (3) is slidably provided with a support rod (4), the outer side of the support rod (4) is sleeved with a first rotating arm (5), the bottom end of the first rotating arm (5) is fixedly connected to a first rotating wheel (6), the bottom end of the first rotating arm (5) is provided with a second rotating arm (7), the bottom end of the second rotating arm (7) is fixedly connected to a second rotating wheel (8), and the second rotating arm (7) is slidably provided on the outer side of the support rod (4).

3. The rail transit maintenance vehicle according to claim 1, characterized in that: The top end of the first extension rod (9) is fixedly connected to the top end of the first rotating arm (5), and the top end of the second extension rod (17) is fixedly connected to the bottom end of the second rotating arm (7).

4. A rail transit maintenance vehicle according to claim 2, characterized in that: The front end of the maintenance vehicle body (1) is fixedly connected to a buffer plate (19), the bottom end of the buffer plate (19) is fixedly connected to a shock-absorbing seat (20), the bottom end of the shock-absorbing seat (20) is fixedly connected to a tightening seat (25), and the bottom end of the maintenance vehicle body (1) is rotatably connected to a driving wheel (18).

5. The rail transit maintenance vehicle according to claim 4, characterized in that: A friction wheel (21) is provided on the right side of the driving wheel (18), a scraper (22) is provided on the top end of the friction wheel (21), and the outer side of the scraper (22) is fixedly connected to the bottom end of the buffer plate (19).

6. The rail transit maintenance vehicle according to claim 4, characterized in that: The right side of the maintenance vehicle body (1) is fixedly connected with a third extension block (23), and the bottom end of the third extension block (23) is internally rotatably connected with a brush (24), and two groups of the brushes (24) are provided.

7. The rail transit maintenance vehicle according to claim 6, characterized in that: The top of the maintenance vehicle body (1) is fixedly connected to a passenger compartment (2), and a square groove is provided inside the top of the passenger compartment (2).

Citation Information

Patent Citations

  • Maintenance car for rail transit

    CN220349684U