High-speed railway bridge floor inspection vehicle

By designing a high-speed railway bridge deck inspection vehicle, and adopting a dual-light camera and an electrically assisted walking mechanism, the problems of detection stability and positioning of portable and vehicle-mounted infrared thermal imagers were solved, achieving efficient, stable and accurate bridge deck inspection.

CN223522981UActive Publication Date: 2025-11-07RAILWAY CONSTR RES INST OF CHINA ACAD OF RAILWAY SCI CO LTD +2
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Patent Information

Application Number
CN202422688255.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-05
Publication Date
2025-11-07
Estimated Expiration
2034-11-05

AI Technical Summary

Technical Problem

The existing bridge deck waterproofing and drainage facilities and beam end waterproofing devices suffer from problems such as unstable shooting angle and poor continuity of portable infrared thermal imagers, as well as the weight and insufficient positioning of vehicle-mounted infrared thermal imagers.

Method used

A high-speed railway bridge deck inspection vehicle was designed, which uses first and second lateral bars extending out of the vehicle body, is equipped with dual-light cameras and visible light cameras, and combines an electric-assisted walking mechanism. Considering ergonomic design, it adds lateral positioning references to achieve reasonable spatial positioning.

Benefits of technology

It improves the stability and continuity of inspection, reduces environmental interference, meets the inspection requirements of single-line and double-line bridge decks, and provides reasonable positioning information acquisition.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a high-speed railway bridge floor inspection vehicle which is characterized in that transverse rods are of transverse extending structures, the lengths of the transverse rods on the two sides extending out of the vehicle body are unequal, a walking mechanism is arranged at the bottom of the vehicle body, the walking mechanism moves on two steel rails respectively, and a detection mechanism is arranged at the tail ends of the extending parts of the transverse rods. The vertical push rod is vertically and fixedly arranged on the rear surface of the vehicle body, the height of the top end of the vertical push rod is higher than the height of the shoulder height of the human factor engineering male standing posture by 85%, and the two walking mechanisms are a wheel mechanism provided with a mileage metering device and a walking mechanism with a transverse auxiliary limiting device. And the two detection mechanisms are respectively provided with a downward camera and a transverse camera and a downward camera. Transverse positioning which is not equal to the rail in height is added, space positioning in the longitudinal section of the steel rail is achieved, and reference is achieved compared with two-point positioning of the rail.
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Description

TECHNICAL FIELD

[0001] The utility model relates to bridge deck detection field, especially a kind of high-speed railway bridge deck inspection car. BACKGROUND

[0002] From the investigation of high-speed railway, the diseases of bridge deck waterproofing facilities and beam end waterproofing devices of bridge structure are more prominent. Due to the influence of personnel establishment, equipment configuration and maintenance window series factors, the inspection of bridge deck by each equipment management unit is not complete, and the maintenance workload is large, and various inspection systems are not truly implemented. The current bridge deck inspection mainly relies on manual visual inspection, supplemented by flashlight, caliper, crack meter, digital camera and other simple tools. However, due to the characteristics of wide distribution, slow development and hidden performance, the diseases of bridge waterproofing system cannot be completely captured by naked eye, and timely prevention and complete repair cannot be achieved.

[0003] In terms of bridge waterproofing system, in view of the long line, scattered diseases and the need for rapid inspection, non-contact detection technology is being tried, i.e. optical magnification observation and image acquisition, long-distance laser transmission and reception, infrared thermal imaging, ultrasonic non-destructive testing technology, and the detection principle gradually develops from contact detection to non-contact detection. Non-contact detection has greatly improved the detection speed, and the focus of detection technology has gradually shifted from accuracy requirements to rapid qualitative development.

[0004] However, the existing collection methods can be divided into two types: 1. Portable infrared thermal imager: in daily inspection, a portable infrared thermal imager is carried, the water seepage of bridge waterproof layer, box girder and pier inside is inspected, infrared images are shot after problems are found, and the position of disease occurrence is recorded to repair defects and check the repair effect. Due to the characteristics of portable handheld, this method has low stability of shooting angle and poor continuity, and is easily affected by environmental interference.

[0005] 2. Vehicle-mounted infrared thermal imager: the infrared thermal imager is installed on a special rail car, and the bridge deck is continuously scanned and detected by infrared, and the infrared image is transmitted to the computer, and the positioning recording system is used to realize the automation and intelligentization of bridge waterproof layer inspection, greatly improve the inspection efficiency, and reduce the missed detection rate caused by manual inspection. The existing such method often has the problem of equipment dead weight, and since the device design is often non-site feedback design, the driving end is often designed based on the viewpoint rather than the actual body shape of the user. At the same time, since the inspection car only uses the track as the positioning reference in actual use, the track can be regarded as planar positioning, and for optical acquisition, such positioning is not enough to realize reasonable positioning information acquisition for the detection method with large running fluctuation.

[0006] Now need a high-speed railway bridge deck inspection vehicle to solve the above problems. SUMMARY

[0007] The utility model discloses to solve the detection of the disease of bridge deck waterproof and drainage facilities and beam end waterproof device in the prior art, when using portable infrared thermal imager, due to the low shooting visual angle stability and the poor continuity of portable handheld characteristics, environmental interference is easy to receive, when using vehicle-mounted infrared thermal imager, there is often the problem of equipment dead weight, and simultaneously, since the device design is often off-site feedback design, so its pushing end is often based on the viewpoint design instead of the actual body shape design of the user. Meanwhile, since the inspection vehicle only uses the track itself as the positioning reference in actual use, the track can be regarded as plane positioning, and for optical acquisition, such positioning is insufficient to realize reasonable positioning information acquisition for the detection mode with large running fluctuation.

[0008] The utility model provides a kind of high-speed railway bridge deck inspection vehicle, including first transverse rod, second transverse rod, vertical push rod, car body, first walking mechanism, second walking mechanism, first detection mechanism and second detection mechanism, first transverse rod and second transverse rod are all lateral protruding structure, first transverse rod and second transverse rod protrude from the both sides of car body, the length that first transverse rod protrudes outside car body is greater than the length that second transverse rod protrudes outside car body, first walking mechanism and second walking mechanism are set in car body bottom, first walking mechanism and second walking mechanism move on two rails respectively, first detection mechanism is set to the end of first transverse rod protruding part, second detection mechanism is set to the end of second transverse rod protruding part, vertical push rod is vertically fixed and set in car body rear surface, the height of vertical push rod top end is equal to the standing posture shoulder height of eighty-five percent of male ergonomics, first walking mechanism is the wheel mechanism with odometer device, second walking mechanism is walking mechanism with lateral auxiliary limit, first detection mechanism is provided with downward camera, second detection mechanism is provided with laterally and downward camera.

[0009] As a preferred mode, the working height of the camera outwardly provided transversely by the second detection mechanism covers the slag retaining wall outside the rail.

[0010] As a preferred mode, the working range of the camera provided transversely by the second detection mechanism and the downward camera partially overlaps.

[0011] As a preferred mode, the downward camera of the first detection mechanism and the downward camera of the second detection mechanism are both dual-light cameras, with a temperature measurement accuracy higher than ±2℃ and a thermal imaging resolution not lower than 256×192.

[0012] The high-speed railway bridge deck inspection vehicle, as a preferred mode, the lateral camera of the second detection mechanism is an optical camera with a visible light resolution not less than 2560*1440.

[0013] The high-speed railway bridge deck inspection vehicle, as a preferred mode, the top end of the vertical push rod is provided with a handle for the operator to push.

[0014] The high-speed railway bridge deck inspection vehicle, as a preferred mode, the first walking mechanism and the second walking mechanism are provided with electric power assistance.

[0015] The high-speed railway bridge deck inspection vehicle, as a preferred mode, the top end of the vertical push rod is provided with a handle for the operator to push.

[0016] (1) The design is reasonable, the structure is firm, and transportation and installation are facilitated.

[0017] (2) The inspection vehicle satisfies the inspection coverage of single-line bridge decks and half-width double-line bridge decks.

[0018] (3) The inspection vehicle fully considers the actual conditions of the user, and sets the height of the top end of the vertical push rod to a reasonable height.

[0019] (4) The device increases the lateral positioning of the track, realizes the spatial positioning in the longitudinal section of the steel rail, and has more reference for the two-point positioning of the track itself. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic view of a high-speed railway bridge deck inspection vehicle.

[0021] REFERENCE SIGNS

[0022] 1, first lateral rod; 2, second lateral rod; 3, vertical push rod; 4, vehicle body; 5, first walking mechanism; 6, second walking mechanism; 7, first detection mechanism; 8, second detection mechanism. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Embodiment 1

[0024] As Figure 1As shown, a high-speed railway bridge deck inspection vehicle comprises a first transverse rod 1, a second transverse rod 2, a vertical push rod 3, a vehicle body 4, a first walking mechanism 5, a second walking mechanism 6, a first detection mechanism 7 and a second detection mechanism 8, the first transverse rod 1 and the second transverse rod 2 are both transversely protruding structures, the first transverse rod 1 and the second transverse rod 2 protrude from both sides of the vehicle body 4, the length of the first transverse rod 1 protruding out of the vehicle body 4 is greater than the length of the second transverse rod 2 protruding out of the vehicle body 4, the first walking mechanism 5 and the second walking mechanism 6 are arranged at the bottom of the vehicle body 4, the first walking mechanism 5 and the second walking mechanism 6 move on two rails respectively, the first detection mechanism 7 is arranged at the end of the protruding part of the first transverse rod 1, the second detection mechanism 8 is arranged at the end of the protruding part of the second transverse rod 2, the vertical push rod 3 is vertically fixedly arranged on the rear surface of the vehicle body 4, the height of the top end of the vertical push rod 3 is equal to the shoulder height of the standing posture of the male of 85 percent, the first walking mechanism 5 is a wheel mechanism provided with a mileage measuring device, the second walking mechanism 6 is a walking mechanism with transverse auxiliary limiting, the first detection mechanism 7 is provided with a downwardly arranged camera, and the second detection mechanism 8 is provided with a laterally arranged and downwardly arranged camera.

[0025] Specifically, the working height of the laterally outwardly arranged camera of the second detection mechanism 8 covers the slag retaining wall outside the rail.

[0026] In the embodiment, the downward camera of the first detection mechanism 7 and the downward camera of the second detection mechanism 8 are both dual-light cameras, the temperature measurement accuracy of which is higher than ±2℃ and the thermal imaging resolution of which is not less than 256*192.

[0027] In the embodiment, the laterally outwardly arranged camera of the second detection mechanism 8 is an optical camera with a visible light resolution of not less than 2560*1440.

[0028] The top end of the vertical push rod 3 is provided with a handle for an operator to push.

[0029] Optionally, the first walking mechanism 5 and the second walking mechanism 6 are provided with electric assistance.

[0030] Optionally, the length of the vertical push rod 3 is adjustable.

[0031] The above is only a preferred specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A high-speed railway bridge deck inspection car, characterized in that: The utility model provides a kind of vehicle for detecting the temperature of slag, including first transverse rod (1), second transverse rod (2), vertical push rod (3), car body (4), first walking mechanism (5), second walking mechanism (6), first detection mechanism (7) and second detection mechanism (8), the first transverse rod (1) and the second transverse rod (2) are all transverse to project structure, the first transverse rod (1) and the second transverse rod (2) project from car body (4) both sides, the length that the first transverse rod (1) projects outside the car body (4) is greater than the length that the second transverse rod (2) projects outside the car body (4), the first walking mechanism (5) and the second walking mechanism (6) are arranged in the bottom of the car body (4), the first walking mechanism (5) and the second walking mechanism (6) move on two rails respectively, the first detection mechanism (7) is arranged at the end of the first transverse rod (1) projecting part, the second detection mechanism (8) is arranged at the end of the second transverse rod (2) projecting part, the vertical push rod (3) is vertically fixed and arranged on the rear surface of car body (4), the top end height of the vertical push rod (3) is higher than the shoulder height of the standing posture of the eighty-five percent of male ergonomics, the first walking mechanism (5) is the wheel mechanism with odometer device, the second walking mechanism (6) is the walking mechanism with transverse auxiliary limit, the first detection mechanism (7) is provided with downward camera, the second detection mechanism (8) is provided with transversely arranged and downward camera.

2. The inspection vehicle of claim 1, wherein: The working height of the camera outwardly arranged in the second detection mechanism (8) covers the slag retaining wall outside the rail.

3. The high-speed railway bridge inspection vehicle according to claim 2, characterized in that: The working range of the camera arranged transversely and the downward camera of the second detection mechanism (8) partially overlaps.

4. The high-speed railway bridge inspection vehicle according to claim 1, characterized in that: The downward camera of the first detection mechanism (7) and the downward camera of the second detection mechanism (8) are both dual-light cameras, with temperature measurement accuracy higher than ±2℃ and thermal imaging resolution not less than 256×192.

5. The high-speed railway bridge inspection vehicle according to claim 1, characterized in that: The transverse camera of the second detection mechanism (8) is an optical camera with visible light resolution not less than 2560×1440.

6. The high-speed railway bridge inspection vehicle according to claim 1, characterized in that: The top end of the vertical push rod (3) is provided with a handle for the operator to push.

7. The high-speed railway bridge inspection vehicle according to claim 1, characterized in that: The first walking mechanism (5) and the second walking mechanism (6) are provided with electric power assistance.