A trolley for tunnel maintenance, reinforcement construction and environmental safety monitoring without interrupting traffic

Abstract

The present invention provides a trolley for tunnel maintenance, reinforcement construction and environmental safety monitoring without interrupting traffic, which belongs to the technical field of tunnel trolleys and is used for tunnel maintenance, reinforcement and environmental monitoring. Tunnels are semi-enclosed spaces, and problems are prone to occur in the internal air environment; tunnel repair and reinforcement work takes a long time and has high risks, so environmental monitoring must be carried out during construction in the tunnel. However, the tunnel cross-section is large, and monitoring is difficult. The present invention includes a trolley body, a detection platform and a detection device. The detection platform can be vertically raised and lowered to ensure the passage of social vehicles during the construction phase, and to achieve tunnel repair and reinforcement construction and environmental monitoring without interrupting social traffic conditions; the detection device includes a rotating support, a detection arm and a sensor carrier. The detection arm is a telescopic structure, and the sensor carrier is connected to the end of the detection arm. During operation, the detection platform can be raised and lowered, the detection device can slide, and the detection arm can be telescopic and rotated. All kinds of tunnels can be monitored at multiple points and in their entire cross-section, providing protection for personnel safety.

Description

Technical Field

[0001] The present invention belongs to the technical field of tunnel trolleys, and in particular relates to a trolley for tunnel maintenance, reinforcement construction and environmental safety monitoring without interrupting traffic. Background Art

[0002] Tunnels are semi-enclosed spaces with restricted airflow. Exhaust gases emitted by vehicles passing through tunnels may not disperse and disappear quickly, leading to environmental problems within the tunnels. Furthermore, the passage of vehicles raises large amounts of dust, which is difficult to dissipate and gradually interacts with pollutants emitted by vehicle exhaust, exacerbating the deterioration of the tunnel's environmental quality. Furthermore, because tunnels are often humid, they are prone to bacterial growth, which can affect the human respiratory tract.

[0003] If a tunnel is under construction or newly built, chemical reactions may occur in the building materials within the tunnel, producing harmful gases such as ammonia and hydrogen sulfide. The unique geological topography of the mountain may also store toxic and harmful gases such as carbon dioxide, methane, and even gas. These gases cannot be quickly discharged, posing serious safety risks during construction. If a tunnel has already experienced an accident, the types and concentrations of toxic and harmful gases should be determined before emergency rescue efforts begin. Continuous testing should be conducted until the concentration of toxic and harmful gases in the air is below the maximum allowable concentration or the permissible concentration for short-term exposure.

[0004] Highway tunnels are long and have large cross-sections, requiring a large amount of data to be monitored. This is especially true when toxic and harmful gases are present. To determine the types, concentration ranges, and release sources of toxic and harmful gases that may be present in the tunnel, and to ensure the safety of construction workers entering the tunnel, it is often necessary to conduct air quality monitoring and analysis across the entire cross-section of the tunnel. However, due to the varying cross-sectional shapes and sizes of tunnels, existing technologies often require the installation of complex monitoring sensor systems on the trolley body during tunnel maintenance and reinforcement. These sensors are relatively fixed in position and can only monitor a few specific points within the tunnel cross-section, making it difficult to achieve environmental safety monitoring of any position across the entire cross-section of the tunnel. Furthermore, in order to meet the requirements for the arrangement of measurement points, sensor arms often need to extend into multiple areas. These fixed angles and positions of these sensor arms can hinder the passage of other vehicles in the tunnel, resulting in poor or even slow tunnel passage. Summary of the Invention

[0005] In view of the shortcomings of the prior art mentioned above, the purpose of the present invention is to provide a tunnel maintenance and reinforcement construction and environmental safety monitoring trolley that does not interrupt traffic, which is used to solve the problem in the prior art that there is no special device to monitor the environmental quality at any position in the entire cross-section of the tunnel during tunnel maintenance and reinforcement construction.

[0006] To achieve the above-mentioned and other related purposes, the present invention provides a trolley for tunnel maintenance and reinforcement construction and environmental safety monitoring without interrupting traffic, comprising a trolley body, a corrugated steel plate assembly system, a detection platform, and a detection device, characterized in that:

[0007] The detection platform is installed at the end of the trolley body, and the detection platform can be raised and lowered, and the detection device is slidably installed on the detection platform;

[0008] The corrugated steel plate assembly system is installed on the side and top surfaces of the trolley body. The corrugated steel plate assembly system includes multiple support platforms, each of which supports multiple corrugated steel plates. After the multiple corrugated steel plates are assembled, they match the tunnel.

[0009] The detection device includes a rotating seat, a rotating support, a detection arm and a sensor carrier. At least one detection arm is rotatably connected to the rotating seat. The rotating support is an annular telescopic structure. The two connected detection arms and the detection arm and the base are connected through the rotating support. The telescopic direction of the rotating support is consistent with the rotation direction of the detection arm. The detection arm is a telescopic structure. The sensor carrier is connected to the end of the detection arm. Multiple sensor components are arranged on the sensor carrier.

[0010] Optionally, the detection arm includes a first arm, a second arm, and a third arm, the first arm and the second arm are both hollow flat plate-like structures, and the tail ends of the second arm and the third arm are respectively provided with a first enlarged head and a second enlarged head;

[0011] The second arm is inserted into the hollow area of ​​the first arm, and the first enlarged head slides and seals against the inner wall of the first arm. The first enlarged head divides the hollow area of ​​the first arm into a primary pressurization area and a primary pressure relief area. The primary pressurization area is connected to a pressurization pipe.

[0012] The third arm is inserted into the hollow area of ​​the second arm, and the second enlarged head slides and seals against the inner wall of the second arm. The second enlarged head divides the hollow area of ​​the second arm into a secondary pressurization area and a secondary pressure relief area. The secondary pressurization area is connected to the primary pressurization area via a first sequence valve.

[0013] The first-level pressure relief area is connected to a first-level pressure relief pipe, the second-level pressure relief area is connected to a second-level pressure relief pipe, and the first-level pressure relief pipe and the second-level pressure relief pipe merge into a total pressure relief pipe; or, a first-level pressure relief channel is provided on the arm body of the second arm, the first-level pressure relief channel connects the first-level pressure relief area and the second-level pressure relief area, and a second-level pressure relief channel is provided on the arm body of the first arm, one end of the second-level pressure relief channel is connected to the first-level pressure relief area, and the other end is connected to the total pressure relief pipe;

[0014] The pressurized pipe and the main pressure relief pipe are both connected to the hydraulic control system.

[0015] Optionally, the rotating seat includes a rotating ring and side supports, the two side supports are arranged on both sides of the rotating ring and perpendicular to the axis of the rotating ring, the rotating support and the detection arm are both arranged between the two side supports, the rotating support is a folding airbag structure, and the telescopic arc of the rotating support is controlled by air pressure or hydraulic pressure.

[0016] Optionally, the plurality of rotating supports are controlled independently or in series;

[0017] The independent control mode means that each of the rotating supports is provided with an independent control valve to control the extension and retraction arc of each rotating support respectively;

[0018] The series control mode means that the plurality of rotating supports are connected in series via pipelines, and a second sequence valve is provided on the pipeline connecting two rotating supports.

[0019] Optionally, a gas sampling structure is provided on the sensor carrier, and the gas sampling structure includes a piston cavity, an electric piston, a one-way valve and an exhaust port. The electric piston is arranged in the piston cavity, and the one-way valve and the exhaust port are connected to the piston cavity. Gas can enter the piston cavity through the one-way valve, and the exhaust port is connected to the detection platform through a pipeline.

[0020] Optionally, a buffer structure is provided on the sensor carrier, and the buffer structure includes a protective plate, a telescopic column and an elastic member. The protective plate and the sensor carrier are connected through the telescopic column, and the elastic member is sleeved on the telescopic column. A button is also provided on the inner bottom surface of the telescopic column. When the protective plate moves a certain distance toward the sensor carrier, the button will be triggered.

[0021] Optionally, a distance sensor is further provided on the sensor carrier, and the distance sensor detects the distance of obstacles along the traveling direction of the trolley body.

[0022] Optionally, the trolley body is a tunnel trolley, the detection platform is installed at the end of the trolley body, and the detection device is slidably installed on the detection platform.

[0023] Optionally, the detection platform is provided with width indicator lights.

[0024] Optionally, a signal light is provided on the sensor carrier.

[0025] As described above, the non-interruption tunnel maintenance and reinforcement construction and environmental safety monitoring trolley of the present invention has at least the following beneficial effects:

[0026] It is highly efficient and safe. The detection device can be adjusted according to the cross-sectional size of the tunnel to detect the environmental quality of the entire cross-section of the tunnel, providing safety guarantees for tunnel maintenance and reinforcement construction. Specifically, the present invention provides a non-interrupted traffic tunnel maintenance and reinforcement construction and environmental safety monitoring trolley, including a trolley body, a corrugated steel plate assembly system, a detection platform and a detection device. The detection platform is installed at the end of the trolley body, and the detection platform can be raised and lowered. The detection device is slidably installed on the detection platform. The detection device includes a rotating seat, a rotating support, a detection arm and a sensor carrier. The detection arm is rotatably connected to the rotating seat. The detection arm is a telescopic structure. The sensor carrier is connected to the end of the detection arm. A plurality of sensor components are provided on the sensor carrier. While the corrugated steel plate assembly system on the trolley is carrying out maintenance and reinforcement construction on the tunnel, the detection platform at the end of the trolley body can be raised and lowered to adjust the height, and the detection device can slide on the detection platform. The detection arm of the detection device itself has the functions of telescoping and rotating, which can adapt to tunnels of various cross-sectional shapes and sizes, and perform air composition detection at multiple points in the entire cross-section of the tunnel. While the tunnel construction is underway, the ambient air in the tunnel can be monitored in real time, and passing vehicles can be avoided to reduce the impact on the tunnel traffic situation and ensure the safety of the construction workers on the trolley body and other people passing through the tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Shown is a schematic diagram of the working state of the present invention.

[0028] Figure 2 Shown is a three-dimensional schematic diagram of the present invention.

[0029] Figure 3 Shown is a schematic diagram of the detection arm of the present invention.

[0030] Figure 4 Shown is a schematic diagram of the pressure relief channel of the detection arm of the present invention.

[0031] Figure 5 Shown is a schematic diagram of the detection device of the present invention.

[0032] Figure 6 Shown is a schematic diagram of the connection between the rotating support and the detection arm of the present invention.

[0033] Figure 7 Shown is a schematic diagram of the serial control method of the detection arm of the present invention.

[0034] Figure 8 Shown is a schematic diagram of the sensor carrier of the present invention.

[0035] Figure 9 Shown is a schematic diagram of the gas sampling structure of the present invention.

[0036] Among them: trolley body 9, detection platform 1, detection device 2, rotating seat 3, rotating ring 31, side support 32, second sequence valve 33, rotating support 4, detection arm 5, first arm 51, first level pressurization area 510, first level pressure relief area 511, first level pressure relief pipe 512, second level pressure relief channel 513, second arm 52, first enlarged head 521, first sequence valve 522, second level pressurization area 523, second level pressure relief area 524, second level pressure relief pipe 525, first level pressure relief channel 526, third arm 53, second enlarged head 531, total pressure relief pipe 54, pressurization pipe 55, sensor carrier 6, piston chamber 61, electric piston 62, one-way valve 63, exhaust port 64, protective plate 65, telescopic column 66, elastic member 67, button 68, signal light 69, distance sensor 71, corrugated steel plate assembly system 8. DETAILED DESCRIPTION

[0037] The following describes the implementation of the present invention through specific embodiments. People skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0038] See also Figures 1 to 9 . It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they have no substantive technical significance. Any modification of the structure, change in the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the efficacy and purpose that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0039] The following embodiments are for illustration only and can be combined with each other, and are not limited to the contents presented in the following single embodiments.

[0040] See also Figure 1 and Figure 2 The present invention provides a non-interrupting traffic tunnel maintenance and reinforcement construction and environmental safety monitoring trolley, which is used for maintenance and reinforcement construction of highway tunnels. In order to ensure the safety of construction personnel, the environment in the tunnel is monitored at the same time. The contents that can be detected include air components, such as oxygen, carbon dioxide, carbon monoxide, nitrogen monoxide, sulfur dioxide, gas and hydrogen sulfide, etc., as well as illumination, brightness, wind speed, noise, smoke concentration and dust concentration, etc. In specific implementation, the detection capability is mainly determined by the sensor components carried by this detection vehicle.

[0041] Specifically, the tunnel maintenance and reinforcement construction and environmental safety monitoring trolley includes a trolley body 9, a corrugated steel plate assembly system 8, a detection platform 1 and a detection device 2;

[0042] The detection platform 1 is mounted on the end of the trolley body 9 and can be raised and lowered. The detection device 2 is slidably mounted on the detection platform 1. The lifting amount of the detection platform 1 and the sliding amount of the detection device 2 can be dynamically adjusted according to the cross-sectional shape and size of the tunnel during actual construction. On the one hand, multi-point free measurement can be performed on tunnels of various cross-sections and sizes. On the other hand, the detection platform 1 can be raised to a higher height, leaving space at the bottom of the trolley body 9 for other road vehicles to pass normally. Even high-altitude vehicles can pass through, minimizing the impact on tunnel traffic during tunnel maintenance and reinforcement construction.

[0043] The corrugated steel plate assembly system 8 is installed on the side and top surfaces of the trolley body 9. The corrugated steel plate assembly system 8 includes multiple support platforms, and multiple corrugated steel plates are supported on the support platforms. After the multiple corrugated steel plates are assembled, they match the tunnel. During the tunnel maintenance and reinforcement construction, the corrugated steel plates can be fixed to the tunnel wall with manual or mechanical assistance to achieve the purpose of reinforcement;

[0044] The detection device 2 includes a rotating base 3, a rotating support 4, a detection arm 5, and a sensor carrier 6. At least one detection arm 5 is rotatably connected to the rotating base 3. The rotating support 4 is a ring-shaped telescopic structure. The two connected detection arms 5 and the detection arm 5 and the base are connected via the rotating support 4. Specifically, the outer side surfaces of the two outermost detection arms 5 on the rotating support 4 are connected to the base via the rotating support 4, while the inner side surfaces and the middle detection arm 5 are connected to each other via the rotating support 4. The telescopic direction of the rotating support 4 is consistent with the rotation direction of the detection arm 5. The detection arm 5 is a telescopic structure. The sensor carrier 6 is connected to the end of the detection arm 5 and is provided with multiple sensor components.

[0045] Highway tunnels are semi-enclosed spaces with restricted airflow and slow internal gas diffusion. If toxic and hazardous substances are present, they are difficult to dissipate quickly. Furthermore, due to poor air circulation, these toxic and hazardous gases may only accumulate in local areas, making it difficult to detect and monitor the air environment in tunnels. Therefore, it is crucial to detect and monitor the environment in highway tunnels. The scenarios involved include:

[0046] Before entering a tunnel, toxic and harmful gases are detected to provide a basis for tunnel entry. While working in the tunnel, toxic and harmful gases are continuously or periodically monitored to ensure the safety of those entering. After an accident, the tunnel is inspected to provide information on toxic and harmful gases for handling the accident, rescuing personnel, and ensuring emergency repairs. Specifically, in this embodiment, when a trolley is performing maintenance and reinforcement work on the tunnel, toxic and harmful gases in the tunnel are continuously detected and monitored in real time to ensure the safety of workers, ensuring that the air environment in the tunnel is non-toxic and harmless.

[0047] For gas concentration detection, considering the density of toxic and harmful gases, which may be greater or less than the density of air, detection points should be set at the bottom and top of the tunnel respectively; at the same time, there is a lack of ventilation in the tunnel, and toxic and harmful gases may be distributed in a concentrated manner in local areas, so it is necessary to set detection points on the ground, surrounding areas and arches of the tunnel section. In particular, strict detection should be carried out in the tunnel sections corresponding to coal seams, fault fracture zones, fissure zones and abnormal gas outburst points. For small tunnels, multiple detection points can be set in the tunnel section, and each detection point is detected by a detection arm 5. The angle of the detection arm 5 is adjusted by the rotating support 4 to match it with the distribution of the detection points. The telescopic function of the detection arm 5 allows the sensor carrier 6 carrying the sensor assembly to match the height of the detection point. When the trolley body 9 is moving slowly or stopped for construction, the detection of the entire tunnel section is realized.

[0048] In this embodiment, multiple detection arms 5 are located in the same cross-section of the tunnel. The number of detection arms 5 can be set based on the number of detection points and the cross-sectional dimensions of the tunnel. The thickness of the detection device 2 does not increase with the number of detection arms 5, which can reduce the space requirements of the detection device 2 on the detection platform 1, providing more space for other equipment or operational requirements. The angle between the detection arms 5 is determined by the rotating support 4. The rotating support 4 is a ring-shaped telescopic structure. When there is no gas or liquid inside, it will contract and fold into a fan-shaped ring with a smaller curvature. When filled with gas or liquid, it will expand and unfold into a fan-shaped ring with a larger curvature. The expansion size can be controlled by the pressure and amount of gas or liquid. The inner end of the detection arm 5 is rotatably connected to the rotating base 3. The rotating support 4 supports the side of the detection arm 5. Under the push of the rotating support 4, the detection arm 5 rotates accordingly. This drive method is more reliable. The point of force application is a planar structure, and the force arm is located in the middle area of ​​the detection arm 5 away from the center of rotation. For a long arm structure like the detection arm 5, the structure is more stable and the reaction force of the arm load on the drive device is smaller.

[0049] Furthermore, a larger number of detection arms 5 can be provided. Even when a large number of detection arms 5 are provided, only one air pressure source or hydraulic pressure source is required, without the need for a drive assembly for each detection arm 5. This results in a relatively simple control system. Using a traditional motor drive would not only complicate the control system, requiring a set of drive assemblies for each detection arm 5, but also require that the multiple detection arms 5 be staggered along a single axis in order to be arranged. This makes it impossible to ensure that the multiple detection arms 5 are located in the same cross-section, making it difficult to meet the requirements of the inspection regulations. In particular, with this long arm structure, the torque requirements for the motor are also relatively high, making implementation difficult.

[0050] In this embodiment, a sensor carrier 6 is provided at the end of the detection arm 5. When conducting environmental detection, different sensor components can be set on the sensor carrier 6 according to the purpose of the detection, which greatly increases the applicability of the tunnel maintenance and reinforcement construction and environmental safety monitoring trolley, and improves the convenience and efficiency of tunnel environmental detection work.

[0051] For this example, please refer to Figure 3 and Figure 5 The detection arm 5 includes a first arm 51, a second arm 52 and a third arm 53. The first arm 51 and the second arm 52 are both hollow flat plate structures. The tail ends of the second arm 52 and the third arm 53 are respectively provided with a first enlarged head 521 and a second enlarged head 531;

[0052] The second arm 52 is inserted into the hollow area of ​​the first arm 51. The first enlarged head 521 slides and seals against the inner wall of the first arm 51. The first enlarged head 521 divides the hollow area of ​​the first arm 51 into a first-level pressurization area 510 and a first-level pressure relief area 511. The first-level pressurization area 510 is connected to a pressurization pipe 55. When the first-level pressurization area 510 is pressurized and the first-level pressure relief area 511 is depressurized, the pressure pushes the second arm 52 to extend. Conversely, when the first-level pressurization area 510 is depressurized and the first-level pressure relief area 511 is pressurized, the pressure pushes the second arm 52 to retract into the first arm 51.

[0053] The third arm 53 is inserted into the hollow area of ​​the second arm 52. The second enlarged head 531 slides and seals against the inner wall of the second arm 52. The second enlarged head 531 divides the hollow area of ​​the second arm 52 into a secondary pressurized area 523 and a secondary pressure relief area 524. The secondary pressurized area 523 is connected to the primary pressurized area 510 via a first sequence valve 522. When the secondary pressurized area 523 is pressurized and the secondary pressure relief area 524 is depressurized, the pressure pushes the third arm 53 to extend. Conversely, when the secondary pressurized area 523 is depressurized and the secondary pressure relief area 524 is pressurized, the pressure pushes the third arm 53 to retract into the second arm 52.

[0054] Further, in Figure 3In the figure, the first-level pressure relief area 511 is connected to the first-level pressure relief pipe 512 , the second-level pressure relief area 524 is connected to the second-level pressure relief pipe 525 , and the first-level pressure relief pipe 512 and the second-level pressure relief pipe 525 merge into the main pressure relief pipe 54 .

[0055] When the detection arm 5 needs to be extended, the pressure is applied to the first-level pressurization area 510 through the pressurization pipe 55. During the pressurization process, the pressure is lower than the connection pressure of the first sequence valve 522, the first sequence valve 522 is disconnected, and the first-level pressure relief area 511 is in a pressure relief state, and the second arm 52 begins to extend; when the second arm 52 reaches its limit, the first sequence valve 522 is connected, the second-level pressurization area 523 begins to be pressurized, and the second-level pressure relief area 524 is in a pressure relief state. During this process, the third arm 53 begins to extend;

[0056] When the detection arm 5 needs to retract, the secondary pressure relief zone 524 is pressurized and the secondary pressurization zone 523 is placed in a pressure relief state, and the third arm 53 will retract. It should be noted that the first sequence valve 522 needs to adopt a sequence valve with reverse conduction, such as a one-way sequence valve. To place the secondary pressurization zone 523 in a pressure relief state, the primary pressurization zone 510 can be placed in a pressure relief state; pressurizing the primary pressure relief zone 511 and placing the primary pressure relief zone 510 in a pressure relief state will retract the second arm 52. In specific implementation, the secondary pressure relief zone 524 and the primary pressure relief zone 511 can be controlled separately to independently control the retraction state of the third arm 53 and the second arm 52. Alternatively, the secondary pressure relief zone 524 and the primary pressure relief zone 511 can be controlled together and simultaneously, and both retract at the same time when retracting.

[0057] As an alternative to the above piping setup, see Figure 4 Alternatively, a primary pressure relief channel 526 can be provided on the body of the second arm 52, connecting the primary pressure relief area 511 with the secondary pressure relief area 524. A secondary pressure relief channel 513 can be provided on the body of the first arm 51, with one end of the secondary pressure relief channel 513 connected to the primary pressure relief area 511 and the other end connected to the main pressure relief pipe 54. This solution differs in that the pressure relief pipe is internally installed instead of externally installed, reducing the number of pipes installed on the detection arm 5. During the extension and retraction of the detection arm 5, there is no need to consider the corresponding movement of the pipes, thus reducing system complexity and improving system reliability.

[0058] In the above scheme, the pressurized pipe 55 and the total pressure relief pipe 54 are both connected to the hydraulic control system, which automatically controls the pressure of each pressure relief zone and the pressurized zone, thereby realizing the extension or retraction function of the detection arm 5. In this embodiment, the detection arm 5 adopts a two-stage telescopic structure with a large telescopic stroke, and the middle-stage telescopic arm, that is, the second arm 52, serves as both the telescopic rod of the first-stage telescopic structure and the telescopic seat of the second-stage telescopic structure. Through this dual-purpose approach, the maximum extension length of the detection arm 5 is greatly increased, while the initial length when fully retracted is shorter, avoiding the use of drive structures such as motors, so that the overall volume and mass are within an acceptable range. The detection arm 5 adopts a flat plate-like structure, which, on the one hand, enables this dual-purpose approach to be realized, and on the other hand, facilitates cooperation with the rotating support 4. The rotating support 4 contacts the wider detection arm 5 plate surface, dispersing the contact stress of the rotation drive. When the rotating support 4 drives the detection arm 5 to rotate, the stress on the stress-bearing surface of the detection arm 5 with the long arm structure is relatively small. The swivel support 4 is supported in the upper-middle region of the detection arm 5, significantly reducing the length of the swivel arm on the detection arm 5. This significantly reduces the reaction force exerted by the weight of the detection arm 5 and the sensor carrier 6 on the swivel support 4 when the detection arm 5 is fully extended, thereby improving the reliability of the detection arm 5. In a specific implementation, the detection arm 5 can be made of lightweight aluminum and driven by pneumatic pressure, reducing its weight and increasing its effective working length and stability.

[0059] For this example, please refer to Figure 5 and Figure 6 The rotating seat 3 includes a rotating ring 31 and side supports 32. The two side supports 32 are arranged on both sides of the rotating ring 31 and are perpendicular to the axis of the rotating ring 31. The rotating support 4 and the detection arm 5 are both arranged between the two side supports 32. The rotating support 4 is a folding airbag structure. The telescopic arc of the rotating support 4 is controlled by air pressure or hydraulic pressure. Figure 6 In the figure, to facilitate the illustration of the rotating ring 31, the side supports 32 and one rotating support 4 are concealed, and the rotating ring 31 is shown in section. The rotating ring 31 serves as a rotation guide for the detection arm 5, and the side supports 32 are provided on both sides, also supporting and limiting the detection arm 5. For the rotating support 4, the side supports 32 on both sides can limit its expansion direction when pressurized, allowing it to better convert pressure into power along the rotation direction of the detection arm 5 rather than lateral expansion, thereby improving the driving ability and reliability of the detection arm 5.

[0060] Furthermore, the multiple rotating supports 4 are controlled independently or in series.

[0061] The independent control mode means that each rotating support 4 is provided with an independent control valve to control the extension and retraction arc of each rotating support 4 respectively. Under this control mode, the expansion degree of each rotating support 4 can be independently controlled, that is, the rotation angle between the two connected detection arms 5 can be controlled separately, so that the distribution state of the sensor carrier 6 in the tunnel cross section can be set according to the detection needs, thereby improving the adaptability of the detection vehicle.

[0062] The series control mode means that multiple rotating supports 4 are connected in series through pipelines, and a second sequence valve 33 is set on the pipeline connecting two rotating supports 4. The second sequence valve 33 should be a sequence valve with reverse flow function, such as a one-way sequence valve. Figure 7 In this method, the control system is relatively simple, but the rotation angle of each detection arm 5 is relatively fixed, pre-set by the maximum deployment angle of the rotary support 4. Once set, the rotation angle of each detection arm 5 cannot be adjusted without replacing the rotary support 4. The principle of this method is that when pressurization is applied to the first rotary support 4, the action of the first second sequence valve 33 prevents fluid or gas from flowing through the second sequence valve 33. During this process, the first rotary support 4 gradually extends to its maximum angle, and the first detection arm 5 also reaches its maximum rotation angle. At this time, continued pressure is applied, and the first second sequence valve 33 automatically opens. Then, the second rotary support 4 begins to gradually increase pressure, and the second detection arm 5 also rotates accordingly. When the maximum rotation angle is reached, the next second sequence valve 33 automatically opens, and the next rotary support 4 gradually extends. This process continues, and so on, until all rotary supports 4 and detection arms 5 reach their fully deployed angles. When retraction is required, the pressure source is released, the second sequence valve 33 is reversed, and each rotary support 4 and detection arm 5 retract accordingly. This control system is relatively simple and works well in fixed scenarios and specific tunnels. However, for complex tunnels, such as those with changing cross-sections, independent control is more effective.

[0063] For this example, please refer to Figure 8 and Figure 9 A gas sampling structure is provided on the sensor carrier 6, and the gas sampling structure includes a piston cavity 61, an electric piston 62, a one-way valve 63 and an exhaust port 64. The electric piston 62 is arranged in the piston cavity 61, and the one-way valve 63 and the exhaust port 64 are connected to the piston cavity 61. The gas can enter the piston cavity through the one-way valve 63, and the exhaust port 64 is connected to the detection platform 1 through a pipeline.

[0064] The environment inside the tunnel is relatively complex, and the air composition and concentration may also be relatively complex, especially in accident and maintenance scenarios. The sensors carried by the sensor carrier 6 may only be able to perform preliminary analysis due to spatial conditions. If a more accurate analysis of the air composition is required, it may be necessary to take samples and then manually test them on the trolley body, or even send them to a specialized laboratory for analysis. In this embodiment, a one-way valve 63 connects the piston chamber 61 and the external environment. When the electric piston 62 retracts, a negative pressure is formed in the piston chamber 61, and the gas in the tunnel environment enters and remains in the piston chamber 61 through the one-way valve 63. Then the electric piston 62 extends, and the piston chamber 61 is compressed. The gas in the chamber cannot return to the external environment through the one-way valve 63, so it will flow along the exhaust port 64. The exhaust port 64 is connected to the detection platform 1 through a pipeline, and the gas can be sampled and stored by the equipment in the detection platform 1 for further testing by professionals on the trolley body or sent to the laboratory for more accurate testing. It should be noted that in order to improve the accuracy of sampling, the volume of the piston chamber 61 should be ensured to be larger than the volume of the sampling tube. Before sampling, the gas in the piston chamber 61 should first be discharged from the original gas in the sampling tube.

[0065] For this example, please refer to Figure 8 The sensor carrier 6 is provided with a buffer structure, which includes a protective plate 65, a telescopic column 66 and an elastic member 67. The protective plate 65 and the sensor carrier 6 are connected by the telescopic column 66. The elastic member 67 is sleeved on the telescopic column 66. A button 68 is also provided on the inner bottom surface of the telescopic column 66. When the protective plate 65 moves a certain distance toward the sensor carrier 6, the button 68 will be triggered. The sensor carrier 6 serves as a platform for carrying sensors. Various sensors can be set on it according to detection needs, including but not limited to gas sensors, light sensors, anemometers, and smoke sensors. The sensitive elements of the sensors are generally fragile. After the detection arm 5 is extended, the sensor carrier 6 is close to the tunnel wall. During the movement of the trolley body 9, the sensor carrier 6 may collide with the tunnel wall due to changes in the tunnel cross-section, bumpy road surface, signs hanging on the tunnel wall, etc. The provision of a retractable protective plate 65 can provide a certain degree of protection for the sensors. When the amount of collision is large, the movement of the protective plate 65 will also increase accordingly, thereby triggering the button 68. At this time, the trigger signal can be given to the control system, and the control system drives the detection arm 5 to retract, thereby avoiding damage to the sensor and affecting the detection work.

[0066] For this example, please refer to Figure 8 The sensor carrier 6 is further provided with a distance sensor 71, which detects the distance of obstacles along the direction of travel of the trolley body 9. Figure 1When the inspection vehicle is traveling in a tunnel, in order to comply with the relevant technical regulations for environmental inspection of highway tunnels, the inspection point must be close to the tunnel wall and needs to cover multiple angles and directions of the tunnel cross section. However, in the actual tunnel environment, a large number of signs are often set up on the top and sides of the tunnel, such as traffic lights, display screens, road signs, etc. During the movement of the trolley body 9, the extension length of each detection arm 5 can be manually controlled to avoid various obstacles. The distance sensor 71 on the sensor carrier 6 at the end of the detection arm 5 can also identify the distance to the obstacle in front, so as to perform a telescopic action to avoid it. In the automatic avoidance mode, the distance sensor 71 can cooperate with the button 68 of the buffer structure. The distance sensor 71 identifies the distance to the obstacle and retracts it in time. After retracting for a certain period of time, it extends again. During the extension process, if the obstacle still exists, the button 68 will be triggered, and the detection arm 5 will retract again. After a set delay time, the extension action is performed again. This method can improve the convenience and safety of operation. On the one hand, the driver can focus on driving the trolley body 9 without having to consider the control of the detection arm 5, nor does it need to be equipped with a dedicated controller for the detection arm 5. In addition, the coordinated effect of the distance sensor 71 and the button 68 can improve safety and avoid collisions between the detection arm 5, the sensor carrier 6, and even the sensor assembly and the tunnel wall and signboards, causing economic losses and affecting tunnel detection work.

[0067] Furthermore, multiple detection devices 2 can be configured, with their axes overlapping. By combining multiple detection devices 2, the number of detection arms 5 along the travel direction of the trolley body 9 can be increased, allowing for the mounting of more sensors. Multiple detection arms 5 can also be combined into a platform to increase its carrying capacity. Large equipment, such as a drilling rig, can be mounted on the sensor carrier 6 at the end, enabling tasks such as drilling and sampling from the tunnel roof.

[0068] Furthermore, the detection device 2 and the sensor assembly exchange data via short-range wireless communication. This significantly reduces the number of wiring harnesses on the detection arm 5. Because the detection arm 5 has telescopic and rotatable functions, excessive wiring harnesses and pipe connections would increase the complexity of system design. Short-range wireless communication can circumvent wiring harness issues, simplify system design, and improve operational stability.

[0069] For this example, please refer to Figure 1 and Figure 2The trolley body 9 is a tunnel trolley. The detection platform 1 is installed at the end of the trolley body 9 and can be installed at the front end of the trolley body 9 in the direction of travel to detect the area that the trolley body 9 is about to pass. The detection device 2 can slide on the detection platform 1 and then approach one side of the tunnel cross section to facilitate the detection of the sensor on the detection arm 5. In specific implementation, there are many ways to make the detection device 2 slide on the detection platform 1. For example, a motor and a gear are set on the detection device 2, and a rack is set on the detection platform 1. The sliding of the detection device 2 is achieved by the cooperation of the gear and the rack. Alternatively, a power device may not be provided, but only a sliding structure is provided, and the position of the detection device 2 on the detection platform 1 is manually adjusted according to the needs of the detection. In this embodiment, the trolley body 9 is a tunnel trolley. Through the sliding action of the detection device 2, even in the case of a large-section tunnel, the detection device 2 can also achieve multi-point measurement of the entire tunnel cross section, provide environmental data to the workers on the rear trolley, and ensure the safety of the construction operation. Warning lights or width lights can also be set on the detection platform 1 to mark the height and width of the detection platform 1. Vehicles can pass under the detection platform 1, thereby minimizing the impact of the detection process on the tunnel traffic status.

[0070] Please combine this embodiment with Figure 8 , a signal light 69 is provided on the sensor carrier 6. The signal light 69 can be a yellow flashing light source. In the tunnel, there may be a problem of insufficient lighting. When detecting the tunnel environment, the trolley body 9 is generally traveling slowly, much lower than the normal speed. After the detection arm 5 on the trolley body 9 is extended, Figure 1 As shown, in the tunnel, the lighting conditions are poor. If there are other vehicles traveling, the detection arm 5 may cause a traffic accident because it is not easy to observe. Therefore, a signal light 69 is set at the end of the detection arm to indicate the extended state of the detection arm 5, which can remind other vehicles to avoid it and avoid accidents.

[0071] In summary, the present invention effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

[0072] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed herein are intended to be covered by the claims of the present invention.

Claims

1. A trolley for non-interrupting traffic tunnel maintenance and reinforcement construction and environmental safety monitoring, comprising a trolley body (9), a corrugated steel plate assembly system (8), a detection platform (1) and a detection device (2), characterized in that: The detection platform (1) is installed at the end of the trolley body (9), and the detection platform (1) can be raised and lowered, and the detection device (2) is slidably installed on the detection platform (1); The corrugated steel plate assembly system (8) is installed on the side and top surfaces of the trolley body (9), and the corrugated steel plate assembly system (8) includes a plurality of support platforms, and a plurality of corrugated steel plates are supported on the support platforms. After the plurality of corrugated steel plates are assembled, they match the tunnel; The detection device (2) comprises a rotating seat (3), a rotating support (4), a detection arm (5) and a sensor carrier (6), wherein a plurality of the detection arms (5) are rotatably connected to the rotating seat (3), the rotating support (4) is an annular telescopic structure, and the two adjacent detection arms (5) and the detection arm (5) and the base are connected via the rotating support (4), the telescopic direction of the rotating support (4) is consistent with the rotation direction of the detection arm (5), and the angle between the detection arms (5) is determined by the rotating support (4), the inner end of the detection arm (5) is rotatably connected to the rotating seat (3), the rotating support (4) supports the side of the detection arm (5), and under the pushing action of the rotating support (4), the detection arm (5) rotates accordingly, the detection arm (5) is a telescopic structure, the sensor carrier (6) is connected to the end of the detection arm (5), and a plurality of sensor components are arranged on the sensor carrier (6); The rotating seat (3) comprises a rotating ring (31) and side supports (32), the two side supports (32) being arranged on both sides of the rotating ring (31) and perpendicular to the axis of the rotating ring (31), the rotating support (4) and the detection arm (5) being arranged between the two side supports (32), the rotating support (4) being a folding airbag structure, and the telescopic arc of the rotating support (4) being controlled by air pressure or hydraulic pressure; The plurality of rotating supports (4) are controlled independently or in series; The independent control method means that each of the rotating supports (4) is provided with an independent control valve to control the telescopic arc of each rotating support (4) respectively; The series control method means that a plurality of the rotating supports (4) are connected in series via a pipeline, and a second sequence valve (33) is provided on the pipeline connecting two of the rotating supports (4).

2. The non-interruption tunnel maintenance and reinforcement construction and environmental safety monitoring trolley according to claim 1, characterized in that: The detection arm (5) comprises a first arm (51), a second arm (52) and a third arm (53); the first arm (51) and the second arm (52) are both hollow flat plate-shaped structures; the tail ends of the second arm (52) and the third arm (53) are respectively provided with a first enlarged head (521) and a second enlarged head (531); The second arm (52) is inserted into the hollow area of ​​the first arm (51), the first enlarged head (521) slides and seals with the inner wall of the first arm (51), and the first enlarged head (521) divides the hollow area of ​​the first arm (51) into a first-level pressurization area (510) and a first-level pressure relief area (511), and the first-level pressurization area (510) is connected to a pressurization pipe (55); The third arm (53) is inserted into the hollow area of ​​the second arm (52), the second enlarged head (531) slides and seals with the inner wall of the second arm (52), and the second enlarged head (531) divides the hollow area of ​​the second arm (52) into a secondary pressurization area (523) and a secondary pressure relief area (524), and the secondary pressurization area (523) is connected to the primary pressurization area (510) via a first sequence valve (522); The first-level pressure relief zone (511) is connected to a first-level pressure relief pipe (512), the second-level pressure relief zone (524) is connected to a second-level pressure relief pipe (525), and the first-level pressure relief pipe (512) and the second-level pressure relief pipe (525) are merged into a total pressure relief pipe (54); or, a first-level pressure relief channel (526) is provided on the arm body of the second arm (52), the first-level pressure relief channel (526) connects the first-level pressure relief zone (511) and the second-level pressure relief zone (524), and a second-level pressure relief channel (513) is provided on the arm body of the first arm (51), one end of the second-level pressure relief channel (513) is connected to the first-level pressure relief zone (511), and the other end is connected to the total pressure relief pipe (54); The pressurizing pipe (55) and the total pressure relief pipe (54) are both connected to a hydraulic control system.

3. The non-interruption tunnel maintenance and reinforcement construction and environmental safety monitoring trolley according to claim 1 is characterized in that: The sensor carrier (6) is provided with a gas sampling structure, which includes a piston cavity (61), an electric piston (62), a one-way valve (63) and an exhaust port (64). The electric piston (62) is arranged in the piston cavity (61), the one-way valve (63) and the exhaust port (64) are in communication with the piston cavity (61), and gas can enter the piston cavity through the one-way valve (63). The exhaust port (64) is connected to the detection platform (1) through a pipeline.

4. The non-interruption tunnel maintenance and reinforcement construction and environmental safety monitoring trolley according to claim 1, characterized in that: The sensor carrier (6) is provided with a buffer structure, which includes a protective plate (65), a telescopic column (66) and an elastic member (67). The protective plate (65) and the sensor carrier (6) are connected via the telescopic column (66). The elastic member (67) is sleeved on the telescopic column (66). A button (68) is also provided on the inner bottom surface of the telescopic column (66). When the protective plate (65) moves a certain distance toward the sensor carrier (6), the button (68) will be triggered.

5. The non-interruption tunnel maintenance and reinforcement construction and environmental safety monitoring trolley according to claim 1, characterized in that: The sensor carrier (6) is further provided with a distance sensor (71), and the distance sensor (71) detects the distance of obstacles along the traveling direction of the trolley body (9).

6. The non-interruption tunnel maintenance and reinforcement construction and environmental safety monitoring trolley according to claim 1, characterized in that: The detection device (2) and the sensor assembly exchange data via short-range wireless communication.

7. The non-interruption tunnel maintenance and reinforcement construction and environmental safety monitoring trolley according to claim 1, characterized in that: The detection platform (1) is provided with a width indicator light.

8. The non-interruption tunnel maintenance and reinforcement construction and environmental safety monitoring trolley according to claim 1, characterized in that: A signal light (69) is provided on the sensor carrier (6).

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