Tunnel construction maintenance trolley

By designing a tunnel construction and maintenance trolley and adopting spray maintenance components, a traveling mechanism, and a lifting platform, the problems of low spraying efficiency and high worker intensity in long tunnel construction have been solved, achieving efficient and flexible tunnel maintenance.

CN224300898UActive Publication Date: 2026-05-29CHINA NUCLEAR XINHUA HUANGLONG PUMPED STORAGE POWER GENERATION CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA NUCLEAR XINHUA HUANGLONG PUMPED STORAGE POWER GENERATION CO LTD
Filing Date
2025-10-15
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing technologies result in low efficiency in the construction and maintenance of medium and long tunnels, high workload for operators, and difficulty in guaranteeing the effectiveness of spray curing.

Method used

Design a tunnel construction and maintenance trolley, equipped with a spray curing component, a walking mechanism and a lifting platform, to achieve uniform spray coverage of the curing liquid and flexible movement of the trolley, reducing manual operation.

Benefits of technology

It improves the efficiency of spray curing, reduces the workload of operators, meets the construction needs of different heights, and enhances the flexibility of construction and the spraying effect.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224300898U_ABST
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Abstract

The utility model discloses a tunnel construction maintenance trolley, including trolley frame body, the bottom longitudinal beam's bottom front and back position all combination is provided with walking mechanism, both sides and the top of trolley frame body all fixed configuration have multilayer operation platform, and multilayer operation platform all combination installation has the ladder, both sides and the top of trolley frame body are combined to set up the spray maintenance subassembly in operation platform outer position. Advantageous effect lies in: the trolley frame body combination of the utility model sets up spray maintenance subassembly, and the mode of storing maintenance liquid with the liquid storage tank body of spray maintenance subassembly can realize the proper temporary storage of maintenance liquid, and the mode that the maintenance liquid is sprayed from the nozzle after the pressurized flow of maintenance liquid through infusion pipeline and spray pipeline with the help of booster pump can realize the uniform spray covering of the lining surface in the tunnel with maintenance liquid, and the maintenance effect is improved.
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Description

Technical Field

[0001] This utility model relates to the field of tunnel construction equipment technology, specifically to a tunnel construction and maintenance trolley. Background Technology

[0002] During tunnel construction, maintenance is a crucial step in ensuring the quality and durability of the tunnel structure. This is especially true for long tunnels, where the quality of maintenance is paramount. However, current technology typically involves erecting mobile scaffolding and having workers manually spray water while climbing it. In practice, this method is problematic because the long distances of tunnels necessitate frequent relocation of the scaffolding. This not only results in low efficiency and high workload for workers but also makes it difficult to guarantee the effectiveness of the spraying process. Utility Model Content

[0003] The purpose of this utility model is to provide a tunnel construction and maintenance trolley to solve the above problems, as detailed below.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] The present invention provides a tunnel construction and maintenance trolley, including a trolley frame body. Both sides of the bottom of the trolley frame body are fixedly equipped with longitudinal bottom beams, and the bottom front and rear positions of the bottom of the longitudinal beams are combined with a traveling mechanism for driving the trolley frame body to move longitudinally.

[0006] The trolley frame body is fixedly equipped with multiple operating platforms on both sides and top, and ladders are installed between the multiple operating platforms to facilitate climbing to the operating platforms on each level.

[0007] Spray curing components are combined and installed on both sides and top of the trolley frame body outside the operating platform, and part of the spray curing components are located between the lower two sides of the trolley frame body to uniformly spray and cover the lining surface inside the tunnel with curing liquid.

[0008] Preferably, the trolley frame body is a prefabricated steel frame.

[0009] Preferably, the operating platform is a steel platform, and the ladder is an inclined ladder equipped with guardrails.

[0010] Preferably, the walking mechanism includes a wheel frame and a walking drive device. The wheel frame is fixedly assembled at both the front and rear positions of the bottom longitudinal beam, and each wheel frame is rotatably mounted with a walking wheel arranged vertically in the longitudinal direction via a wheel axle. The walking drive device is also fixedly configured on the side of the bottom longitudinal beam, and the walking drive device is connected to the wheel axle on the corresponding side for driving the walking wheel to rotate.

[0011] Preferably, the outer surface of each of the walking wheels is covered with rubber tires, and the walking drive device is a motor drive device and is connected to the wheel axle on the corresponding side via chain drive.

[0012] Preferably, the top surface of the operating platform is equipped with a lifting platform with lifting and adjustment function.

[0013] Preferably, the lifting platform is an electric lifting platform or a hydraulic lifting platform.

[0014] Preferably, the spray curing assembly includes an installation platform, a liquid storage tank body, a booster water pump, and spray pipes. The installation platform is fixedly mounted horizontally between the lower two sides of the trolley frame body, and the liquid storage tank body is fixedly mounted on the top surface of the installation platform. The booster water pump is assembled and installed on both sides of the liquid storage tank body on the installation platform, and the booster water pump is connected to the liquid supply pipe on the corresponding side of the liquid storage tank body. The sides and top of the trolley frame body are provided with arched spray pipes outside the operating platform, and nozzles that can spray curing liquid to the outside are evenly distributed and fixedly connected to the outside of the spray pipes. At the same time, the spray pipes are connected to the corresponding booster water pumps through liquid delivery pipes.

[0015] Preferably, the volume of the liquid storage tank body is not less than 1000L and a liquid level observation window is embedded in the front, the water delivery rate of the booster pump is 2.5 cubic meters per hour, and a controller for adjusting the booster pump is installed in the front of the liquid storage tank body.

[0016] Preferably, the spray pipe is provided with two sections, located at the front and rear positions of the trolley frame body respectively, and the nozzles are all spray nozzles.

[0017] In practical use, the tunnel construction and maintenance trolley described above utilizes a spray curing assembly integrated into its frame. The storage tank within this assembly stores the curing fluid, ensuring proper temporary storage. Simultaneously, a booster pump pressurizes the curing fluid through the delivery and spraying pipelines before spraying it from the nozzles, achieving uniform spray coverage of the tunnel lining surface and improving the curing effect. Furthermore, the presence of a traveling mechanism at the bottom of the trolley frame allows the wheels to rotate, enabling the tunnel to... The trolley frame body can move flexibly within the tunnel to change its position, thus facilitating the repositioning of the spray curing components within the tunnel. Furthermore, by moving the spray curing components while spraying, overall spray curing of the brickwork inside the tunnel can be achieved, reducing the workload of operators and improving spray curing efficiency. Additionally, since the operating platform at the top of the trolley frame body is combined with a lifting platform, this platform can be used for construction personnel operation and equipment installation. Simultaneously, the lifting and adjusting mechanism of the platform can meet construction needs at different heights, improving the flexibility of construction use.

[0018] The beneficial effects are as follows: 1. The trolley frame body assembly of this utility model is equipped with a spray curing component. By storing the curing liquid in the liquid storage tank of the spray curing component, the curing liquid can be properly stored temporarily. At the same time, by using a booster water pump to pressurize and flow the curing liquid through the infusion pipeline and spray pipeline and then spraying it out from the nozzle, the curing liquid can be evenly sprayed and covered on the surface of the tunnel lining, thus improving the curing effect.

[0019] 2. A traveling mechanism is provided at the bottom of the trolley frame body. By using the traveling drive device of the traveling mechanism to drive the traveling wheels to roll, the trolley frame body can move flexibly in the tunnel to change its usage position. This makes it easy to change the usage position of the spray curing component in the tunnel by moving the trolley frame body. Then, by moving the spray curing component while spraying, the overall spray curing of the brickwork inside the tunnel can be achieved, which reduces the workload of the operators and improves the efficiency of spray curing.

[0020] 3. The top of the trolley frame is equipped with a lifting platform. This lifting platform can be used for construction personnel to operate and install equipment. At the same time, the lifting platform can be adjusted to meet the construction needs at different heights, thus improving the flexibility of construction. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a front view schematic diagram of the present invention;

[0023] Figure 2 This is a utility model Figure 1 A side view diagram.

[0024] The annotations in the attached figures are explained as follows:

[0025] 1. Operating platform; 2. Ladder; 3. Trolley frame body; 301. Bottom longitudinal beam; 4. Traveling mechanism; 401. Wheel frame; 402. Traveling wheels; 403. Wheel axle; 404. Traveling drive equipment; 5. Lifting platform; 6. Spray curing components; 601. Nozzle; 602. Spray pipeline; 603. Infusion pipeline; 604. Controller; 605. Storage tank body; 606. Liquid level observation window; 607. Liquid supply connection pipe; 608. Booster pump; 609. Installation platform. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] See Figures 1-2As shown, this utility model provides a tunnel construction and maintenance trolley, including a trolley frame body 3. Both sides of the bottom of the trolley frame body 3 are fixedly equipped with longitudinal bottom beams 301. A traveling mechanism 4 for driving the trolley frame body 3 to move longitudinally is assembled at both the front and rear positions of the bottom of the longitudinal bottom beams 301. Specifically, the traveling mechanism 4 includes wheel frames 401 and a traveling drive device 404. Wheel frames 401 are fixedly assembled at both the front and rear positions of the bottom of the longitudinal bottom beams 301, and each wheel frame 401 is rotatably mounted with a vertically arranged wheel axle 403. The traveling wheels 402 and the side of the bottom longitudinal beam 301 are also fixedly equipped with traveling drive devices 404, and the traveling drive devices 404 are all connected to the corresponding wheel axles 403 on the side for transmission, so as to drive the traveling wheels 402 to rotate. The purpose of this arrangement is that by using the traveling drive devices 404 of the traveling mechanism 4 to drive the traveling wheels 402 to roll, the trolley frame body 3 can move flexibly in the tunnel to change its usage position, thereby facilitating the change of the usage position of the spraying maintenance component 6 in the tunnel by moving the trolley frame body 3. Optionally, multi-level operating platforms 1 are fixedly arranged on both sides and the top of the trolley frame body 3, and ladders 2 are installed between the multi-level operating platforms 1 to facilitate easy climbing to each level of the operating platform 1. This arrangement allows the operator to easily check the actual situation of the tunnel wall by standing on the operating platform 1.

[0028] See Figures 1-2As shown, a spray curing assembly 6 is assembled on both sides and top of the trolley frame body 3 outside the operating platform 1. Part of the spray curing assembly 6 is located between the lower two sides of the trolley frame body 3, used to uniformly spray and cover the tunnel lining surface with curing liquid. Specifically, the spray curing assembly 6 includes an installation platform 609, a liquid storage tank body 605, a booster pump 608, and a spray pipeline 602. The installation platform 609 is horizontally fixed between the lower two sides of the trolley frame body 3, and the liquid storage tank body 605 is fixedly installed on the top surface of the installation platform 609. Booster pumps 608 are assembled on both sides of the liquid storage tank body 605 on the installation platform 609, and the booster pumps 608 are respectively connected to the liquid storage tank body 605. 05 is connected to the liquid supply pipe 607 on the corresponding side. The two sides and top of the trolley frame body 3 are provided with arched spray pipes 602 outside the operating platform 1. The outside of the spray pipes 602 are evenly distributed and fixedly connected to nozzles 601 that can spray curing liquid to the outside. At the same time, the spray pipes 602 are all connected to the corresponding booster water pumps 608 through the liquid delivery pipes 603. The purpose of this arrangement is that, firstly, the curing liquid can be properly stored by storing the curing liquid in the liquid storage tank body 605 of the spray curing component 6. Secondly, the curing liquid can be pressurized and flowed through the liquid delivery pipes 603 and the spray pipes 602 and then sprayed out from the nozzles 601 by the booster water pumps 608, so as to achieve uniform spraying and coverage of the curing liquid on the lining surface inside the tunnel.

[0029] See Figure 1 As shown, the trolley frame body 3 is a prefabricated steel frame with dimensions of 4m * 2.72m * 5.72m (length * width * height). The bottom longitudinal beam 301 is H300 * 300 with a total length of 4 meters. This design ensures that the dimensions of the trolley frame body 3 meet the actual needs of tunnel maintenance, and also ensures that the bottom longitudinal beam 301 has the required dimensions. Optionally, the operating platform 1 is a steel platform, and the ladder 2 is an inclined ladder with guardrails, ensuring that the design of both the operating platform 1 and the ladder 2 meets the usage requirements. Furthermore, the wheels 402 are all covered with rubber tires, and the driving device 404 is a motor-driven device connected to the corresponding axle 403 via chain drive. This configuration allows the wheels 402 to move easily on the tunnel surface without the need for tracks, and also allows the driving device 404 to drive the axle 403 and wheels 402 together via chain drive.

[0030] See Figures 1-2As shown, the top operating platform 1 is equipped with a lifting platform 5 with adjustable lifting function. This design allows for both personnel operation and equipment installation, and the adjustable lifting platform 5 can meet different height requirements. Optionally, the lifting platform 5 can be either electric or hydraulic, ensuring reliable operation. Furthermore, the storage tank 605 has a volume of not less than 1000L and a liquid level observation window 606 is installed at the front. The booster pump 608 has a water delivery rate of 2.5 cubic meters per hour. A controller 604 for regulating the booster pump 608 is installed at the front of the storage tank 605. This design ensures the storage tank 605 has sufficient usable volume, eliminating the need for frequent replenishment of the curing solution. It also ensures the booster pump 608's water delivery rate meets the requirements for spray curing solution use, and the controller 604 allows for easy regulation of the booster pump 608's operation. Alternatively, the spray pipe 602 is provided with two sections located at the front and rear positions of the trolley frame body 3, respectively, and the nozzles 601 are all spray faucets. This arrangement firstly ensures that the design and quantity of the spray pipe 602 can meet the maintenance of 3m lining, and also ensures that the spray faucets have a good curing effect when spraying curing liquid.

[0031] With the above structure, in practical use, since the trolley frame body 3 is equipped with a spray curing component 6, the curing liquid can be properly stored by storing the curing liquid in the liquid storage tank body 605 of the spray curing component 6. At the same time, by using a booster pump 608 to pressurize the curing liquid through the infusion pipeline 603 and the spray pipeline 602 and then spraying it out from the nozzle 601, the curing liquid can be evenly sprayed and covered on the surface of the tunnel lining, improving the curing effect. In addition, since a traveling mechanism 4 is set at the bottom of the trolley frame body 3, the traveling drive device 404 of the traveling mechanism 4 drives the traveling wheels 402 to roll, which can make the trolley... The trolley frame body 3 can move flexibly within the tunnel to change its position, thus facilitating the movement of the trolley frame body 3 and allowing the spray curing component 6 to change its position within the tunnel. Furthermore, by moving the spray curing component 6 while spraying, overall spray curing of the brickwork inside the tunnel can be achieved, reducing the workload of operators and improving spray curing efficiency. Additionally, since the top surface of the operating platform 1 on the top of the trolley frame body 3 is equipped with a lifting platform 5, the lifting platform 5 can be used for construction personnel operation and equipment installation. Simultaneously, the lifting and adjusting mechanism of the lifting platform 5 can meet the construction needs at different heights, improving the flexibility of construction use.

[0032] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A tunnel construction and maintenance trolley, comprising a trolley frame body (3), characterized in that: Both sides of the trolley frame body (3) are fixedly equipped with longitudinal bottom beams (301), and the bottom front and rear positions of the bottom longitudinal beams (301) are combined with a walking mechanism (4) for driving the trolley frame body (3) to move and walk in the longitudinal direction. The trolley frame body (3) is fixedly equipped with multiple operating platforms (1) on both sides and top, and ladders (2) are installed between the multiple operating platforms (1) to facilitate climbing to the operating platforms (1) on each layer. Spray curing components (6) are combined and installed on both sides and top of the trolley frame body (3) outside the operating platform (1), and part of the spray curing components (6) is located between the lower two sides of the trolley frame body (3) to uniformly spray and cover the lining surface inside the tunnel with curing liquid by means of the spray curing components (6).

2. The tunnel construction and maintenance trolley according to claim 1, characterized in that: The trolley frame body (3) is a prefabricated steel frame.

3. The tunnel construction and maintenance trolley according to claim 1, characterized in that: The operating platform (1) is a steel platform, and the ladder (2) is an inclined ladder equipped with guardrails.

4. The tunnel construction and maintenance trolley according to claim 1, characterized in that: The walking mechanism (4) includes a wheel frame (401) and a walking drive device (404). The wheel frame (401) is fixedly assembled at the front and rear positions of the bottom longitudinal beam (301). The wheel frame (401) is rotatably mounted with a walking wheel (402) arranged vertically along the longitudinal direction through a wheel axle (403). The walking drive device (404) is also fixedly arranged on the side of the bottom longitudinal beam (301). The walking drive device (404) is connected to the wheel axle (403) on the corresponding side for transmission, so as to drive the walking wheel (402) to rotate by means of the walking drive device (404).

5. The tunnel construction and maintenance trolley according to claim 4, characterized in that: The outer surface of each of the walking wheels (402) is covered with rubber tires. The walking drive device (404) is a motor drive device and is connected to the wheel axle (403) on the corresponding side via chain drive.

6. The tunnel construction and maintenance trolley according to claim 1, characterized in that: The top surface of the operating platform (1) is equipped with a lifting platform (5) with lifting and adjusting function.

7. The tunnel construction and maintenance trolley according to claim 6, characterized in that: The lifting platform (5) is an electric lifting platform or a hydraulic lifting platform.

8. A tunnel construction and maintenance trolley according to any one of claims 1-7, characterized in that: The spray curing assembly (6) includes an installation platform (609), a liquid storage tank body (605), a booster water pump (608), and a spray pipeline (602). The installation platform (609) is fixedly mounted horizontally between the lower two sides of the trolley frame body (3), and the liquid storage tank body (605) is fixedly mounted on the top surface of the installation platform (609). The booster water pump (608) is assembled and installed on both sides of the liquid storage tank body (605) on the installation platform (609), and the booster water pump... The pump (608) is connected to the liquid supply pipe (607) on the corresponding side of the liquid storage tank body (605). The two sides and the top of the trolley frame body (3) are provided with an arched spray pipe (602) outside the operating platform (1). The outside of the spray pipe (602) is uniformly and fixedly connected with nozzles (601) that can spray maintenance liquid to the outside. At the same time, the spray pipe (602) is connected to the corresponding booster pump (608) through the liquid delivery pipe (603).

9. A tunnel construction and maintenance trolley according to claim 8, characterized in that: The volume of the liquid storage tank body (605) is not less than 1000L and a liquid level observation window (606) is embedded in the front. The water delivery rate of the booster pump (608) is 2.5 cubic meters per hour. A controller (604) for controlling the booster pump (608) is installed in front of the liquid storage tank body (605).

10. A tunnel construction and maintenance trolley according to claim 9, characterized in that: The spray pipe (602) is provided with two sections, which are located at the front and rear positions of the trolley frame body (3) respectively, and the nozzles (601) are all spray faucets.