Tunnel secondary lining spraying maintenance trolley

Abstract

The utility model relates to a kind of tunnel second lining spray maintenance trolley, including travelling mechanism, for driving trolley moves along track or ground in tunnel;Support frame is installed on the travelling mechanism, its side is equipped with the first operation platform of multilayer distribution type arrangement, its top is equipped with the second operation platform of continuous distribution, the profile of the support frame is adapted to tunnel second lining section shape, its length direction is formed with the passage space for operation vehicle to pass through;By setting the travelling mechanism movable along tunnel and the support frame connected with it, the quick displacement and accurate positioning of trolley in long tunnel are realized, the traditional fixed area maintenance is changed into flexible sectional, continuous maintenance, greatly improve the automation degree and efficiency of maintenance operation;By distribution type setting spray assembly independently controlled by electromagnetic valve on the first and second operation platform, and make it install through lifting mechanism, the zoned, time-sharing intelligent control of spray system is realized.

Description

Technical Field

[0001] This utility model belongs to the field of tunnel spraying maintenance, and specifically designs a tunnel secondary lining spraying maintenance trolley. Background Technology

[0002] In tunnel construction, the curing of secondary lining concrete is a crucial step in ensuring its strength development and durability. Traditional secondary lining curing often relies on manual water spraying with hand-held hoses. This method is not only labor-intensive and inefficient in terms of water usage, but also fails to guarantee the uniformity and continuity of spraying, making it difficult to control the curing quality. Furthermore, manual curing operations occupy working space within the tunnel, often conflicting with other processes such as material transportation and spoil removal, leading to reduced construction efficiency.

[0003] To improve maintenance efficiency, some automated maintenance equipment has emerged in existing technologies, such as fixed sprinkler systems or simple mobile trolleys. However, these devices still have significant shortcomings:

[0004] 1. Lacks mobility and flexibility, unable to adapt to the needs of segmented maintenance of long tunnels;

[0005] 2. The spray coverage area of ​​most equipment is fixed and cannot be flexibly adjusted to adapt to changes in the tunnel cross-section.

[0006] 3. Its structural design often fails to take into account the characteristics of multiple parallel operations within the tunnel, and once the equipment is in place, it blocks traffic and affects the overall construction progress. Utility Model Content

[0007] In order to solve the above-mentioned problems in the existing technology, the purpose of this utility model is to provide a tunnel secondary lining spray curing trolley.

[0008] The technical solution adopted in this utility model includes:

[0009] The traveling mechanism is used to drive the trolley to move along the track or the ground inside the tunnel;

[0010] A support frame is installed on the walking mechanism. It has a first working platform arranged in multiple layers on its side and a second working platform arranged continuously on its top. The outline of the support frame is adapted to the cross-sectional shape of the tunnel secondary lining, and it forms a passage space for working vehicles to pass through along its length.

[0011] An automatic sprinkler system includes multiple sprinkler components disposed on the first working platform and / or the second working platform, a storage tank for storing curing fluid, and a fluid delivery pipe connecting the storage tank to each sprinkler component;

[0012] The control system is electrically connected to the walking mechanism and the automatic sprinkler system.

[0013] In a preferred embodiment of this invention, the spraying assembly includes a spraying element and a solenoid valve disposed at its fluid input end; the spraying element is a fan-shaped spray head or a rotating sprayer.

[0014] In a preferred embodiment of this invention, the spraying component is mounted on the first working platform and / or the second working platform via a lifting structure.

[0015] In a preferred embodiment of this invention, the storage tank is equipped with a water pump, and the fluid delivery pipe includes a main water supply pipe and multiple branch water supply pipes. The main water supply pipe is connected to the output end of the water pump, and one end of each of the multiple branch water supply pipes is connected to the main water supply pipe, while the other end is connected to the input end of each of the solenoid valves.

[0016] In a preferred embodiment of this utility model, adjacent first working platforms are connected by inclined ladders or straight ladders, and the perimeter of both the first and second working platforms is provided with detachable safety railings.

[0017] In a preferred embodiment of this utility model, the uprights of the safety guardrail are formed by connecting an inner tube and an outer tube to create a telescopic structure; the inner tube wall has multiple sets of adjustment holes along the axial direction, and the outer tube wall has a corresponding set of fixing holes.

[0018] As a preferred embodiment of this invention, the control system includes:

[0019] The main controller is mounted on the trolley.

[0020] An environmental monitoring module, connected to the main controller, is used to monitor the ambient temperature and humidity and the concrete surface temperature inside the tunnel.

[0021] The wireless communication module, connected to the main controller, is used to receive remote commands and upload trolley working status data.

[0022] As a preferred embodiment of this invention, the environmental monitoring module includes at least one infrared temperature sensor and at least one temperature and humidity sensor.

[0023] As a preferred embodiment of this invention, the walking mechanism is a motor-driven wheeled structure or a tracked structure.

[0024] As a preferred embodiment of this invention, a liftable maintenance platform is provided at the top center of the support frame, and an anti-collision alarm sensor is installed on the top of the maintenance platform.

[0025] The beneficial effects of this utility model are as follows:

[0026] This utility model is a tunnel secondary lining spray curing trolley. By setting up a walking mechanism that can move along the tunnel and a support frame connected to it, it realizes the rapid movement and precise positioning of the trolley in long tunnels, transforming traditional fixed-area curing into flexible segmented and continuous curing, greatly improving the automation and efficiency of curing operations. By distributing spraying components independently controlled by solenoid valves on the first and second working platforms and installing them through a lifting mechanism, it realizes the zoned and time-based intelligent control of the spraying system. At the same time, it allows for flexible adjustment of the spraying angle and spraying distance, ensuring that the spraying range can accurately adapt to the cross-sectional contour of the tunnel secondary lining and improve the spraying range. By setting a through passage space along the length of the middle of the support frame, other working vehicles can still safely pass underneath the trolley when it is in position for spray curing operations, improving the overall construction efficiency and equipment utilization rate of the tunnel. Attached Figure Description

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0028] Figure 1 This is a schematic diagram of the structure of this utility model;

[0029] Figure 2 This is a front view structural diagram of the present invention;

[0030] Figure 3 This is a side view structural diagram of the present invention;

[0031] Figure 4 This is a structural schematic diagram of the guardrail upright of this utility model.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Walking mechanism;

[0034] 2 Support frame, 21 First working platform, 22 Second working platform, 23 Safety railing, 231 Inner tube of upright, 232 Outer tube of upright, 233 Adjustment hole, 234 Fixing hole, 24 Maintenance platform, 25 Passage space;

[0035] 3 Automatic sprinkler system, 31 Sprinkler components, 311 Solenoid valve, 32 Storage tank, 33 Fluid delivery pipe, 331 Main water supply pipe, 332 Branch water supply pipe;

[0036] 4. Control system. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0039] The following is combined with Figure 1-4 This invention describes a specific embodiment of a tunnel secondary lining spray curing trolley, comprising:

[0040] The traveling mechanism 1 is used to drive the trolley to move along the track or the ground inside the tunnel. The traveling mechanism 1 provides driving force for movement, which drives the entire trolley to move smoothly along the preset track or the tunnel ground, thereby improving work efficiency and automation.

[0041] The support frame 2, installed on the traveling mechanism 1, has a multi-layered distributed first working platform 21 on its side and a continuously distributed second working platform 22 on its top. The outline of the support frame 2 is adapted to the cross-sectional shape of the tunnel secondary lining, and a passage space 25 for working vehicles to pass through is formed along its length. As the core skeleton support structure, the support frame 2's outline matches the arch shape of the tunnel, providing a stable installation foundation for the working platforms and the spraying system. The multi-layered first working platform 21 and the continuous second working platform 22 provide a support platform for workers to operate, and can also be used to support the installation of the spraying components 31. The passage space 25 formed on the support frame 2 allows concrete mixer trucks, material transport vehicles, and other working vehicles to pass normally under the trolley, realizing the parallel development of maintenance work and other tunnel construction procedures without interference, thus improving the overall construction efficiency.

[0042] The automatic sprinkler system 3 includes multiple sprinkler components installed on the first working platform 21 and / or the second working platform 22, a storage tank 32 for storing curing fluid, and a fluid delivery pipe 33 connecting the storage tank 32 and each sprinkler component. The automatic sprinkler system 3 pumps water or curing liquid from the storage tank 32 through a water pump and delivers it to each sprinkler head through a pipe to evenly cover the concrete surface in the form of atomization or spraying, so as to achieve the curing operation.

[0043] Control system 4 is electrically connected to the walking mechanism 1 and the automatic sprinkler system 3; it is used to control the operating status of the walking mechanism and the sprinkler system.

[0044] Please refer to Figures 1-3 As shown, the spray assembly includes a spray element 31 and a solenoid valve 311 disposed at its fluid input end; the spray element 31 is a fan-shaped spray head or a rotating sprayer; the solenoid valve 311 is used to automatically control the working state, spray flow rate and spray angle of each spray head, thereby enabling zoned control of the spray range and saving water resources; in the first embodiment of the spray element 31, the spray element 31 is a fan-shaped spray head, which raises the spray surface and can generate a uniform fan-shaped water curtain, covering a specific rectangular area; in the second embodiment of the spray element 31, the spray element 31 is a rotating sprayer, which is existing technology, specifically referring to an automatic swing sprinkler, which can achieve large-area spraying while automatically controlling the spray angle to maximize the spray range, ensuring no dead corners in the spray coverage, and producing fine and uniform water droplets, avoiding excessive water flow that could erode the concrete surface.

[0045] Please refer to Figures 2-3 As shown, the spraying component 31 is installed on the first working platform 21 and / or the second working platform 22 via a lifting structure. The spraying component 31 is installed on the working platform via the lifting structure, which can flexibly adjust the distance between the spray head and the concrete surface according to the actual contour and distance of the tunnel secondary lining, thereby always ensuring the best spraying effect and coverage, and avoiding the spraying effect being blocked by the guardrails on the working platform. The lifting structure can be any of the following driving methods, such as a screw and nut mechanism driven by a motor, a hydraulic cylinder, or a pneumatic cylinder. It only needs to achieve lifting, which is a conventional technology and is not specifically limited here.

[0046] Please refer to Figures 2-3 As shown, the storage tank 32 is equipped with a water pump, and the fluid delivery pipe 33 includes a main water supply pipe 331 and multiple branch water supply pipes 332. The main water supply pipe 331 is connected to the output end of the water pump, and one end of each of the multiple branch water supply pipes 332 is connected to the main water supply pipe 331, while the other end is connected to the input end of each of the solenoid valves 311. The water pump provides pressure and flow to pump water out of the storage tank 32. The main water supply pipe 331 collects the total flow, and the branch water supply pipes 332 distribute the water flow to each spray point. In conjunction with the solenoid control valve at the input end of each spray element 31, it ensures that all spray heads can simultaneously receive a stable and sufficient water supply.

[0047] Please refer to Figures 1-3As shown, adjacent first working platforms 21 are connected by inclined ladders or straight ladders, as are the first working platform 21 and the second working platform 22. The first working platform 21 and the second working platform 22 are equipped with detachable safety railings 23 around their perimeters. The inclined ladders / straight ladders provide vertical passages to facilitate safe passage of operators between different platforms on the trolley. The detachable safety railings 23 are used to form physical barriers at the edges of the platforms to ensure the safety of workers at height and prevent falls.

[0048] Please refer to Figure 4 As shown, the upright of the safety guardrail 23 is formed by connecting an inner tube and an outer tube to create a telescopic structure. The inner tube wall has multiple sets of adjustment holes 233 along the axial direction, and the outer tube wall has a corresponding set of fixing holes 234. The height is adjusted by using the overlapping of the inner and outer tubes and the positioning of the pin. Specifically, by inserting the pin into the overlapping part of the adjustment hole 233 and the fixing hole 234 at different heights, the telescopic length of the upright can be locked. This allows the height of the safety guardrail 23 to be flexibly adjusted according to actual operation needs or the spraying range of the spraying component 31, enhancing the adaptability and convenience of the equipment.

[0049] Please refer to Figure 1 As shown, the control system 4 includes:

[0050] The main controller, mounted on the trolley, receives signals from the spraying system and the traveling mechanism 1.

[0051] An environmental monitoring module, connected to the main controller, is used to monitor the ambient temperature and humidity and the concrete surface temperature inside the tunnel. The environmental monitoring module is used to collect maintenance environment information and transmit it to the main controller. The main controller controls the walking mechanism 1 and the spraying system by analyzing the signals.

[0052] The wireless communication module, connected to the main controller, is used to receive remote commands and upload trolley working status data.

[0053] Please refer to Figure 1 As shown, the environmental monitoring module includes at least one infrared temperature sensor and at least one temperature and humidity sensor; the temperature and humidity sensor is used to monitor the temperature and humidity of the air inside the tunnel, reflecting the degree of dryness of the environment; the infrared temperature sensor uses non-contact measurement of the infrared radiation energy of the object surface to determine its temperature, measures the true temperature of the concrete surface, and can intelligently control the spray volume through the analysis of environmental information inside the tunnel.

[0054] Please refer to Figures 1-3 As shown, the walking mechanism 1 is a wheeled structure or a tracked structure driven by a motor.

[0055] Please refer to Figure 1As shown, a liftable maintenance platform 24 is provided at the top center of the support frame 2. The top of the maintenance platform 24 is equipped with an anti-collision alarm sensor. The liftable maintenance platform 24 provides vertical working space, making it convenient for personnel to approach the highest point of the tunnel arch for installation, maintenance and repair work. The anti-collision alarm sensor on the top of the maintenance platform 24, such as an ultrasonic or infrared sensor, detects obstacles above and calculates the distance. During the ascent of the maintenance platform 24, if it approaches the tunnel arch or other obstacles, it can issue an audible and visual alarm or automatically stop ascending, effectively preventing collision accidents and protecting the safety of equipment and tunnel structure. Similarly, the lifting structure of the maintenance platform 24 can be any of the following driving methods: a screw and nut mechanism driven by a motor, a hydraulic cylinder, or a pneumatic cylinder. As long as lifting is achieved, it is a conventional technology and is not specifically limited here.

[0056] Working principle of this utility model:

[0057] The operator starts the walking mechanism 1 through the control system 4, driving the trolley to travel along the track or ground until it moves to the tunnel secondary lining section that needs maintenance.

[0058] When the automatic sprinkler curing operation is initiated, the control system 4 first starts the water pump in the storage tank 32 to pump water or curing solution into the main water supply pipe 331. The fluid is then transported through the branch water supply pipes 332 to the sprinkler components distributed on each working platform. According to the preset curing program, the control system 4 automatically controls the opening and closing of the solenoid valves 311 on each sprinkler pipe, thereby achieving automated sprinkler spraying by area and time sequence. The sprinkler components 31 spray the curing solution evenly onto the concrete lining surface of the tunnel arch and side walls in an atomized or fine rain-like manner. The sprinkler components 31 installed on the working platform can adjust the spray angle and distance from the wall surface through the lifting mechanism at their bottom to ensure optimal spray trajectory and spraying without dead angles.

[0059] Throughout the spraying operation, the environmental monitoring module works continuously. Temperature and humidity sensors monitor the air environment inside the tunnel in real time. Before the concrete is sprayed, infrared temperature sensors measure the surface temperature of the concrete non-contactly. The data is transmitted to the main controller in real time. The control system 4 has built-in intelligent algorithms that can dynamically adjust the spraying strategy based on real-time monitoring data. For example, when the concrete surface temperature is too high or the ambient humidity is too low, the system will automatically extend the spraying time of that area or increase the spraying frequency to achieve intelligent curing.

[0060] Because the trolley support frame 2 has a through passage in the middle, the entire spraying and curing operation does not obstruct other construction work inside the tunnel. Concrete mixer trucks, dump trucks, and other operating vehicles can pass safely and normally under the trolley, enabling multiple construction operations to be carried out simultaneously and significantly shortening the overall construction period.

[0061] In addition, the first and second worktables can provide working platforms for workers, and the top of the second worktable has a lifting maintenance platform 24, which can be used to lift personnel to carry out maintenance and repair at the top of the tunnel.

[0062] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0063] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims of this application, they should all fall within the protection scope of this utility model.

Claims

1. A tunnel secondary lining spraying maintenance trolley, characterized in that, include: The traveling mechanism (1) is used to drive the trolley to move along the track or the ground inside the tunnel; The support frame (2) is installed on the walking mechanism (1). The side of the support frame is provided with a first working platform (21) arranged in multiple layers and the top of the support frame is provided with a second working platform (22) arranged in a continuous manner. The outline of the support frame (2) is adapted to the cross-sectional shape of the tunnel lining. It forms a passage space (25) for working vehicles to pass through along its length. The automatic sprinkler system (3) includes multiple sprinkler components installed on the first working platform (21) and / or the second working platform (22), a storage tank (32) for storing maintenance fluid, and a fluid delivery pipe (33) connecting the storage tank (32) and each sprinkler component; The control system (4) is electrically connected to the walking mechanism (1) and the automatic sprinkler system (3).

2. The two-lining tunnel spraying maintenance trolley according to claim 1, characterized in that: The spray assembly includes a spray element (31) and a solenoid valve (311) disposed at its fluid input end; the spray element (31) is a fan-shaped spray head or a rotating sprayer.

3. The two-liner tunnel spraying maintenance trolley according to claim 2, characterized in that: The spray component (31) is installed on the first working platform (21) and / or the second working platform (22) via a lifting structure.

4. The two-liner tunnel spraying maintenance trolley according to claim 2, characterized in that: The storage tank (32) is equipped with a water pump. The fluid delivery pipe (33) includes a main water supply pipe (331) and multiple branch water supply pipes (332). The main water supply pipe (331) is connected to the output end of the water pump. One end of each of the multiple branch water supply pipes (332) is connected to the main water supply pipe (331), and the other end is connected to the input end of each of the solenoid valves (311).

5. The two-liner tunnel spraying maintenance trolley according to claim 1, characterized in that: The adjacent first working platforms (21) are connected by inclined ladders or straight ladders, and the first working platform (21) and the second working platform (22) are both equipped with detachable safety railings (23).

6. The two-liner tunnel spraying maintenance trolley according to claim 5, characterized in that: The upright of the safety railing (23) is formed by connecting an inner tube and an outer tube to form a telescopic structure; the inner tube wall has multiple sets of adjustment holes (233) along the axial direction, and the outer tube wall has a corresponding set of fixing holes (234).

7. The two-liner tunnel spraying maintenance trolley according to claim 1, characterized in that: The control system (4) includes: The main controller is mounted on the trolley. An environmental monitoring module, connected to the main controller, is used to monitor the ambient temperature and humidity and the concrete surface temperature inside the tunnel. The wireless communication module, connected to the main controller, is used to receive remote commands and upload trolley working status data.

8. The two-liner tunnel spraying maintenance trolley according to claim 7, characterized in that: The environmental monitoring module includes at least one infrared temperature sensor and at least one temperature and humidity sensor.

9. A tunnel secondary lining spray curing trolley according to claim 1, characterized in that: The walking mechanism (1) is a wheeled structure or a tracked structure driven by an electric motor.

10. The two-liner tunnel spraying maintenance trolley according to claim 1, characterized in that: A liftable maintenance platform (24) is provided at the top center of the support frame (2), and the top of the maintenance platform (24) is equipped with an anti-collision alarm sensor.

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