Portable detection vehicle for water leakage diseases of subway tunnel

Abstract

The invention discloses a portable detection vehicle for subway tunnel leakage water diseases. The portable detection vehicle comprises a main cross beam support, a vertical beam support, a wheel track frame, a hand-push support, a distance measuring encoder and the like. The main cross beam bracket is provided with two cross pipes which are orthogonally and fixedly connected through insertion and extraction, and three groups of ground penetrating radar antenna suspension brackets are arranged below the main cross beam bracket, so that the detection operation of leakage, void and other diseases under a tunnel ballast bed can be realized; the wheel rail frames are three groups of belt wheel brackets fixedly mounted below the main cross beam bracket, and the transverse spacing of the wheel rail frames can be adjusted according to different track gauges; one end of the vertical beam bracket is fixedly connected with the main cross beam bracket, and a plurality of plate-shaped platforms are arranged above the vertical beam bracket and are used for carrying different types of tunnel disease detection instruments; on one hand, the hand-push bracket provides advancing power for the portable detection vehicle, and on the other hand, the acquisition terminal can be mounted and fixed; and the distance measuring encoder is coaxially connected with the wheels of one group of belt wheel brackets and is used for accurate positioning of data acquisition. According to the device, rapid and synchronous detection of subway tunnel ballast bed leakage, void damage, tunnel appearance water leakage damage, tunnel deformation and other damage can be realized by carrying a detection instrument, and meanwhile, the device is convenient to disassemble and assemble and convenient to carry by workers.

Description

Technical Field

[0001] The invention relates to the technical field of subway tunnel detection equipment, in particular to a portable detection vehicle for water leakage in subway tunnels. Background Art

[0002] As my country's urban subway construction enters a stage of rapid development, the demand for subway tunnel disease detection is also increasing. By the end of 2022, 55 cities have opened 308 urban rail transit lines, with a total length of 10,287.45 kilometers. Among them, the subway operating lines are 8,008.17 kilometers, accounting for 77.84%; the length of the newly added operating lines that year was 1,080.63 kilometers. In subway operation, due to the influence of the surrounding environment, subway tunnel structures often have diseases such as water leakage, hollowing, back cavities, and cracks. The main methods for conventional tunnel morphology detection and disease investigation are: manual visual inspection, professional tool detection, contact ground penetrating radar, etc. The main characteristics are: low degree of automation, relatively low efficiency of data collection; human eye measurement, low efficiency; low recognition accuracy, easy to miss detection. Therefore, in view of the problems existing in traditional detection methods, the development of a comprehensive, fast and convenient subway tunnel disease detection device to improve detection efficiency, recognition and the expression of detection results will become a problem to be solved in the process of tunnel safety and rapid detection. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a portable subway tunnel leakage detection vehicle equipped with relevant detection instruments such as ground penetrating radar antennas, three-dimensional laser scanners, thermal infrared instruments, etc., to solve the problem of rapid and synchronous detection of subway tunnel subgrade leakage, void diseases, tunnel apparent leakage diseases, tunnel deformation and other diseases. At the same time, it is easy to disassemble and assemble, and convenient for staff to carry.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] The present invention provides a portable detection vehicle for water leakage in subway tunnels, comprising: a main crossbeam support, a wheel-rail frame, a vertical beam support, a hand-pushing support and a distance encoder; the main crossbeam support is connected with the wheel-rail frame, the vertical beam support and the hand-pushing support; the wheel-rail frame is connected with the distance encoder.

[0006] Optionally, the main crossbeam bracket includes a long crossbeam along the direction of travel in the tunnel, a short crossbeam perpendicular to the direction of travel in the tunnel, and an antenna suspension bracket; the long crossbeam and the short crossbeam are orthogonally fixedly connected by plugging and unplugging, and are fixed by an adjustable locking clip; in addition, two pairs of handles are respectively installed on the long crossbeam and the short crossbeam to facilitate the transportation of the inspection vehicle body.

[0007] Optionally, there are three groups of antenna suspension brackets, which are respectively arranged at the center and two end positions under the long crossbeam, and are used to fix the ground penetrating radar antenna; the main body of the antenna suspension bracket at the center of the main crossbeam is a hollow load-bearing plate containing a variety of bolt holes, which is used to replace ground penetrating radar antennas of different sizes; the ground penetrating radar antenna suspension bracket can adjust the height of the ground penetrating radar antenna through a hand wheel to adapt to different detection needs.

[0008] Optionally, the vertical beam bracket is installed at the center of the long beam of the main cross beam bracket, and one end of the vertical beam bracket is fixedly connected to the main cross beam bracket; to facilitate disassembly and carrying, the vertical beam bracket is divided into two sections and connected through bolt holes; multiple plate platforms are installed around the vertical beam bracket for carrying different types of tunnel disease detection instruments, such as three-dimensional laser scanners, thermal infrared instruments, etc.

[0009] Optionally, the wheel-rail frame is arranged below the main beam support; the wheel-rail frame includes three groups, including one group below the long beam and two groups below the short beam. The three groups of wheel-rail frames are located in the same plane position in a triangle, which is used to support the stability of the entire vehicle body and realize the movement of the vehicle body on the track.

[0010] Optionally, the wheel-rail frame includes a slide rail, a pulley, and a load-bearing plate; the load-bearing plate is connected to the pulley; the wheel-rail frame can adjust the lateral spacing therebetween according to different track gauges to adapt to different subway tunnel track gauges.

[0011] Optionally, the hand-push bracket is located near the center of the main beam bracket; the hand-push bracket includes a limit tube, a hand-push rod and a host tray; the limit tube is fixedly connected to the main beam bracket at a certain angle in the horizontal direction, which is convenient for the operator to push and provide forward power for the portable inspection vehicle; the hand-push rod and the limit tube are fixedly connected by plugging and pulling; the host tray is fixedly installed at the push rod of the hand-push rod for placing the collection terminal.

[0012] Optionally, the distance measuring wheel encoder is installed on the inner side of one set of wheel-rail frame pulleys, is coaxially connected to the pulleys, and rotates synchronously with the pulleys during the forward movement to achieve precise positioning of the inspection vehicle.

[0013] Compared with the prior art, the present invention has achieved the following technical effects:

[0014] The main structure of the portable inspection vehicle for water leakage in subway tunnels in the present invention includes a main crossbeam support, a wheel-rail frame, a vertical beam support, a hand-pushing support, and a distance encoder; the main crossbeam support is connected by a long crossbeam and a short crossbeam through plug-in orthogonal fixing, and is firmly fixed with an adjustable locking clip to ensure the stability of the vehicle body during operation. The wheel-rail frame adopts a triangular design in the same plane position, which can not only effectively support the stability of the entire vehicle body, but also adjust the lateral spacing according to the different track gauges of the subway tunnel to meet the use requirements under different conditions. The vertical beam support is designed in two reasonable sections, which is convenient for disassembly and carrying, and provides multiple plate-like platforms to support different tunnel disease detection instruments. The hand-pushing support is connected by plug-in fixing of the hand push rod and the limit tube, which is not only easy to install, but also convenient for the operator. The distance encoder rotates synchronously with the pulley to provide a guarantee for the precise positioning of the inspection vehicle. The research and development of a portable subway tunnel water leakage detection vehicle has not only promoted the transformation of my country's subway tunnel inspection from traditional manual sampling to three-dimensional general inspection, but also provided new technical ideas for convenient and accurate subway tunnel disease detection in the future. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of a portable detection vehicle for water leakage in subway tunnels according to the present invention.

[0017] Figure 2 It is a front view of the portable detection vehicle for water leakage in subway tunnels of the present invention;

[0018] Explanation of the reference numerals in the accompanying drawings: 1. Long crossbeam; 2. Short crossbeam; 3. Antenna suspension bracket; 4. Adjustable locking clip; 5. Handle; 6. Hollow load-bearing plate; 7. Handwheel; 8. Vertical beam bracket; 9. Plate-shaped platform; 10. Slide rail; 11. Pulley; 12. Load-bearing plate; 13. Limiting tube; 14. Push rod; 15. Mainframe tray; 16. Distance measuring wheel encoder; 17. Ground penetrating radar antenna; 18. Three-dimensional laser scanner; 19. Thermal infrared instrument; 20. LiDAR. DETAILED DESCRIPTION

[0019] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0020] Examples:

[0021] like Figure 1 As shown, this example provides a portable inspection vehicle for water leakage in subway tunnels, which includes a main crossbeam support, a wheel-rail frame, a vertical beam support, a hand-pushing support, and a distance encoder; the main crossbeam support is connected to the wheel-rail frame, the vertical beam support, and the hand-pushing support; the wheel-rail frame is connected to the distance encoder.

[0022] In this specific example, Figure 1-2 As shown, the main crossbeam support comprises a long crossbeam (1) along the tunnel travel direction, a short crossbeam (2) perpendicular to the tunnel travel direction and an antenna suspension frame (3); the long crossbeam (1) and the short crossbeam (2) are orthogonally fixedly connected by plugging and unplugging, and are fixed by an adjustable locking clip (4); in addition, two pairs of handles (5) are respectively installed on the long crossbeam (1) and the short crossbeam (2) to facilitate the transportation of the detection vehicle body.

[0023] The antenna suspension frame (3) has three groups, which are respectively arranged at the center and two end positions below the long crossbeam and are used to fix the ground penetrating radar antenna (17); the main body of the antenna suspension frame at the center of the main crossbeam is a hollow load-bearing plate (6) containing a variety of bolt hole positions, which is used to replace ground penetrating radar antennas of different sizes; the ground penetrating radar antenna suspension frame can adjust the height of the ground penetrating radar antenna from the ground through a hand wheel (7) to meet different detection requirements.

[0024] The vertical beam support (8) is installed at the center of the long cross beam (1) of the main cross beam support, and one end of the vertical beam support (8) is fixedly connected to the main cross beam support; in order to facilitate disassembly, assembly and carrying, the vertical beam support (8) is divided into two sections and connected through bolt holes; a plurality of plate-shaped platforms (9) are installed around the vertical beam support for carrying different types of tunnel disease detection instruments, such as a three-dimensional laser scanner (18), a thermal infrared instrument (19), a laser radar (20), etc.

[0025] The wheel-rail frame is arranged below the main beam support; the wheel-rail frame includes three groups, one group below the long beam and two groups below the short beam. The three groups of wheel-rail frames are located in the same plane position in a triangle, which is used to support the stability of the entire vehicle body and realize the movement of the vehicle body on the track.

[0026] The wheel-rail frame comprises a slide rail (10), a pulley (11), and a load-bearing plate (12); the load-bearing plate (12) is connected to the pulley (11); the wheel-rail frame can adjust the lateral spacing between them according to different track gauges to adapt to different subway tunnel track gauges.

[0027] The hand-pushing bracket is located near the center of the main crossbeam bracket; the hand-pushing bracket comprises a limiting tube (13), a hand-pushing rod (14) and a mainframe tray (15); the limiting tube (13) is fixedly connected to the main crossbeam bracket at a certain angle in the horizontal direction, so as to facilitate pushing by operators and provide forward power for the portable inspection vehicle; the hand-pushing rod (14) is fixedly connected to the limiting tube (13) by plugging and unplugging; the mainframe tray (15) is fixedly installed at the push rod of the hand-pushing rod (14) and is used to place the acquisition terminal.

[0028] The distance measuring wheel encoder (16) is installed on the inner side of one group of wheel-rail frame pulleys, is coaxially connected with the pulley (11), and rotates synchronously with the pulley during the forward movement, thereby realizing accurate positioning of the detection vehicle.

[0029] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

[0030] The present specification uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A portable detection vehicle for water leakage in subway tunnels, characterized in that: include: It is composed of a main crossbeam support, a wheel-rail frame, a vertical beam support, a hand-pushing support and a distance measuring encoder; the main crossbeam support is connected to the wheel-rail frame, the vertical beam support and the hand-pushing support; the wheel-rail frame is connected to the distance measuring encoder.

2. The portable subway tunnel water leakage detection vehicle according to claim 1 is characterized in that: The main crossbeam bracket includes a long crossbeam along the direction of tunnel travel, a short crossbeam perpendicular to the direction of tunnel travel and an antenna suspension bracket; the long crossbeam and the short crossbeam are orthogonally fixedly connected by plugging and unplugging, and are fixed by an adjustable locking clip; in addition, two pairs of handles are respectively installed on the long crossbeam and the short crossbeam to facilitate the transportation of the inspection vehicle body.

3. The portable subway tunnel water leakage detection vehicle according to claim 2 is characterized in that: There are three groups of antenna suspension brackets, which are respectively arranged at the center and two ends below the long crossbeam, and are used to fix the ground penetrating radar antenna; the main body of the antenna suspension bracket at the center of the main crossbeam is a hollow load-bearing plate with a variety of bolt holes, which is used to replace ground penetrating radar antennas of different sizes; the ground penetrating radar antenna suspension bracket can adjust the height of the ground penetrating radar antenna through a hand wheel to adapt to different detection needs.

4. The portable subway tunnel water leakage detection vehicle according to claim 1 is characterized in that: The vertical beam bracket is installed at the center of the long beam of the main cross beam bracket, and one end of the vertical beam bracket is fixedly connected to the main cross beam bracket; for the convenience of disassembly and carrying, the vertical beam bracket is divided into two sections and connected through bolt holes; a plurality of plate-like platforms are installed around the vertical beam bracket for carrying different types of tunnel disease detection instruments, such as three-dimensional laser scanners, thermal infrared instruments, etc.

5. The portable subway tunnel water leakage detection vehicle according to claim 1 is characterized in that: The wheel-rail frame is arranged below the main beam support; the wheel-rail frame includes three groups, one group below the long beam and two groups below the short beam. The three groups of wheel-rail frames are located in the same plane position in a triangle, which is used to support the stability of the entire vehicle body and realize the movement of the vehicle body on the track.

6. The portable subway tunnel water leakage detection vehicle according to claim 5 is characterized in that: The wheel-rail frame comprises a slide rail, a pulley and a load-bearing plate; the load-bearing plate is connected to the pulley; the wheel-rail frame can adjust the lateral spacing between them according to different track gauges to adapt to different subway tunnel track gauges.

7. The portable subway tunnel water leakage detection vehicle according to claim 1 is characterized in that: The hand-push bracket is located near the center of the main beam bracket; the hand-push bracket includes a limit tube, a hand-push rod and a host tray; the limit tube is fixedly connected to the main beam bracket at a certain angle in the horizontal direction, which is convenient for the operator to push and provides forward power for the portable inspection vehicle; the hand-push rod and the limit tube are fixedly connected by plugging and pulling; the host tray is fixedly installed at the push rod of the hand-push rod and is used to place the collection terminal.

8. The portable subway tunnel water leakage detection vehicle according to claim 1 is characterized in that: The distance measuring wheel encoder is installed on the inner side of one set of wheel-rail frame pulleys, is coaxially connected to the pulleys, and rotates synchronously with the pulleys during the forward movement to achieve accurate positioning of the detection vehicle.

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