Adjustable combined assembly type multifunctional tunnel moving rack
By designing an adjustable, modular, multi-functional tunnel mobile platform, the problem of poor versatility of existing platforms has been solved, enabling the platform to flexibly adapt to different tunnels and construction procedures, thereby improving construction efficiency and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY NO 2 ENG GROUP CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-04-28
AI Technical Summary
Existing mobile tunnel platforms have poor versatility and insufficient adjustability when applied to tunnels of different sizes or different construction procedures, resulting in increased costs and extended construction periods.
An adjustable, modular, multi-functional tunnel mobile platform was designed. It adopts a double-layer main frame structure, an adjustable working platform and a traveling mechanism. The platform can be flexibly adjusted through longitudinal adjustment pads and slide rails to adapt to different tunnel sizes and construction needs.
It improves the versatility and efficiency of tunnel construction, reduces construction costs, and enables continuous operation of multiple processes and flexible equipment configuration.
Smart Images

Figure CN224174093U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of tunnel construction equipment, specifically relating to an adjustable, modular, multi-functional tunnel mobile platform. Background Technology
[0002] Mobile tunnel scaffolding is a commonly used piece of equipment during tunnel construction, providing a working platform for construction workers to assist in various operations such as excavation, initial support, waterproofing, lining reinforcement, secondary lining, arch and wall lining concrete curing, non-destructive testing and impact testing of arch and wall lining quality, and defect rectification. However, existing mobile tunnel scaffolding has poor versatility and insufficient adjustability when applied to tunnels of different sizes or different construction procedures, often requiring redesign and remanufacturing, leading to increased costs and extended construction periods.
[0003] Therefore, there is a need to provide an improved technical solution that addresses the shortcomings of the existing technology. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings of the prior art. This utility model provides an adjustable, modular, multi-functional tunnel mobile platform.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] An adjustable, modular, multi-functional mobile tunnel platform includes:
[0007] The main frame is a double-layer structure consisting of an upper frame and a lower frame. The width of the upper frame is smaller than that of the lower frame, so as to form stepped platforms corresponding to the tunnel arch on both sides of the main frame.
[0008] The work platform is provided, with multiple work platforms distributed on both sides of the main frame, and the work platforms are slidably assembled along the lateral side of the main frame.
[0009] The traveling mechanism, and multiple traveling mechanisms are respectively connected to the underside of the main frame via longitudinal adjusting pads.
[0010] Preferably, the traveling mechanism includes a crossbeam and traveling wheels, with a traveling wheel rotatably connected to each end of the crossbeam, and a connecting station corresponding to the longitudinal adjusting pad is provided in the middle of the crossbeam.
[0011] Preferably, the longitudinal adjusting pad is an I-beam with connecting plates at both its upper and lower ends for connection to the main frame or crossbeam via bolts.
[0012] Preferably, the longitudinal adjustment pads include multiple specifications of different lengths to support the main frame at different elevations;
[0013] Alternatively, multiple longitudinal adjustment pads may be joined together longitudinally to support the main frame at different elevations.
[0014] Preferably, there are multiple working platforms at the same elevation of the main frame corresponding to the tunnel extension direction, and the outer side of the main frame is provided with slide rails that extend horizontally along the transverse direction of the main frame, corresponding to the working platforms.
[0015] Preferably, the slide rail includes two C-shaped channel steels distributed opposite to each other, and a support rod corresponding to the lower part of the working platform is provided between the two C-shaped channel steels.
[0016] Preferably, the inner side of the main frame is provided with a drive rod corresponding to the working platform to drive the working platform to slide along the two C-shaped channel steels.
[0017] Preferably, a tube is provided above the C-shaped channel steel, and the guardrail is inserted into the tube accordingly.
[0018] Beneficial effects: The sliding assembly work platform solves the problems of poor versatility, insufficient adjustability, inconvenient assembly and combination, and single function of existing tunnel mobile platforms, realizing multi-purpose use and flexible adjustment, improving tunnel construction efficiency and quality, and reducing construction costs. Attached Figure Description
[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. Wherein:
[0020] Figure 1 A simplified structural diagram of the movable platform in a specific embodiment provided by this utility model;
[0021] Figure 2 for Figure 1 Enlarged diagram of point A in the middle.
[0022] In the diagram: 1. Lower shelf; 2. Working platform; 3. Upper shelf; 4. Slide rail; 5. Drive rod; 6. Guardrail; 7. Traveling wheel; 8. Longitudinal adjustment pad; 9. Connecting plate; 10. Crossbeam. Detailed Implementation
[0023] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art are within the protection scope of this utility model.
[0024] In the description of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. The terms "connected" and "linked" used in this utility model should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; they can refer to a direct connection or an indirect connection through intermediate components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.
[0025] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.
[0026] like Figures 1-2 As shown, an adjustable, modular, multi-functional tunnel mobile platform includes a main frame, working platforms 2, and a traveling mechanism. The main frame is a double-layer structure consisting of an upper frame 3 and a lower frame 1. Specifically, both the upper frame 3 and the lower frame 1 are portal frames. They can be assembled using commonly used tunnel construction materials such as I-beams, steel pipes, reinforcing bars, high-strength bolts, and connecting steel plates, making procurement convenient and reducing manufacturing and maintenance costs. In actual production, the upper frame 3 is designed to be narrower than the lower frame 1, forming stepped platforms on both sides of the main frame corresponding to the tunnel arch, thus adapting to the tunnel's arched structure. To meet operational needs, multiple working platforms 2 are provided on both sides of the main frame, allowing for tunnel lining operations such as reinforcing steel or concrete work. This platform integrates multiple functions, including waterproofing layer construction, lining reinforcement construction, lining concrete curing, non-destructive testing and impact testing of lining concrete, and defect remediation. On the same frame, construction workers can flexibly adjust the layout and functional configuration of the work platform 2 according to the needs of different construction stages, enabling continuous operation of multiple processes, reducing the investment in construction equipment and the occupation of construction sites, and effectively accelerating the tunnel construction progress. In order to adapt to tunnels with different cross-sectional shapes, the work platform 2 of this application is slidably assembled along the lateral side of the main frame, so that it can meet different shape requirements through telescopic adjustment. In addition, multiple traveling mechanisms are connected to the bottom of the main frame through longitudinal adjustment pads 8. The longitudinal adjustment pads 8 can adjust the height of the main frame, thereby further adapting to different tunnel construction.
[0027] In an optional embodiment, the traveling mechanism includes a crossbeam 10 and traveling wheels 7. The crossbeam 10 can be an I-beam, and each end of the crossbeam 10 is rotatably connected to a traveling wheel 7 via bearings. The traveling wheel 7 can be a hub motor, or it can be driven by a traction motor. The traction system can be powered by a 3.5KW small diesel generator. The generator can be fixed in the middle of the main frame and can move synchronously with the main frame, eliminating the need for repeated power connection steps due to the movement of the main frame. It can still be used normally when there is no power supply in the tunnel later. When the electric traction traveling system fails, mechanical pushing can be used quickly, which greatly improves the construction efficiency.
[0028] The middle of the crossbeam 10 is provided with a connection station for the corresponding longitudinal adjustment pad 8. The longitudinal adjustment pad 8 is fixed by high-strength bolts. The longitudinal adjustment pad 8 includes multiple specifications with different lengths. By changing different lengths, the main frame can be supported at different elevations, so that this device can be adapted to tunnels of different heights.
[0029] In another embodiment, the longitudinal adjustment pad 8 includes multiple short sections of equal length, which can be 10-30cm in length. Multiple longitudinal adjustment pads 8 are spliced together in the longitudinal direction to support the main frame at different elevations, thereby achieving the purpose of adapting to tunnels of different heights.
[0030] In an optional embodiment, the longitudinal adjusting pad 8 is an I-beam or a double I-beam, with connecting plates 9 at both its upper and lower ends. The longitudinal adjusting pad 8 is composed of 20 I-beams spliced together, and the connecting plates 9 are made of 16mm steel plates and connected with M27×70 bolts. The connecting plates 9 are set horizontally and have corresponding screw holes to be connected to the main frame or crossbeam 10 by bolts, so as to stably fix the longitudinal adjusting pad 8.
[0031] To meet construction requirements, this application provides multiple working platforms 2 on both sides of the main frame. Multiple working platforms 2 are distributed on one side of the main frame in the longitudinal direction and in the tunnel extension direction. There are multiple working platforms 2 at the same elevation of the main frame corresponding to the tunnel extension direction. In order to realize the extension and retraction of the working platforms 2, the outer side of the main frame is provided with slide rails 4 that extend horizontally along the transverse direction of the main frame, corresponding to the working platforms 2. The length of the slide rails 4 extending out of the side of the main frame is generally suitable for smaller tunnels, so that this device can be used in most tunnels.
[0032] The working platform 2 is a square truss or a plane. The slide rail 4 includes two C-shaped channel steels that are distributed opposite each other. The bottom of the C-shaped channel steel is provided with a support structure to ensure the support strength of the working platform 2. There is a corresponding support rod between the two C-shaped channel steels and the support rods below the working platform 2. The support rods slide in contact with the lower surface of the working platform 2 or there is a certain gap between them, so as to avoid the danger caused by the working platform 2 falling off.
[0033] In one optional embodiment, a drive rod 5 corresponding to the working platform 2 is provided on the inner side of the main frame. The drive rod 5 can be an electromagnetic push rod or a hydraulic rod. One end of the drive rod 5 is hinged to the main frame, and the other end is hinged to a hinged position below the working platform 2. This allows the working platform 2 to slide along two C-shaped channel steels, realizing the extension and retraction of the working platform 2. A control panel is connected to the drive rod 5 to control the extension and retraction. Fastening bolts are provided on the C-shaped channel steels. The fastening bolts pass through the C-shaped channel steels from top to bottom and abut against the working platform 2. This allows the working platform 2 to be pushed in or released as needed by the fastening bolts, realizing the switching between the locked and sliding states of the working platform 2.
[0034] In this embodiment, a tube is provided above the C-shaped channel steel, and the guardrail 6 is inserted into the tube. This provides protection for workers, and the guardrail 6 can be detached and installed through the insertion method, thus providing high flexibility in disassembly.
[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be within the scope of protection of the pending claims of the present utility model.
Claims
1. An adjustable, modular, multi-functional tunnel mobile platform, characterized in that, include: The main frame is a double-layer structure consisting of an upper frame and a lower frame. The width of the upper frame is smaller than that of the lower frame, so as to form stepped platforms corresponding to the tunnel arch on both sides of the main frame. The work platform is provided, with multiple work platforms distributed on both sides of the main frame, and the work platforms are slidably assembled along the lateral side of the main frame. The traveling mechanism, and multiple traveling mechanisms are respectively connected to the underside of the main frame via longitudinal adjusting pads.
2. The adjustable, modular, multi-functional tunnel mobile platform according to claim 1, characterized in that, The traveling mechanism includes a crossbeam and traveling wheels. Each end of the crossbeam is rotatably connected to a traveling wheel, and the middle of the crossbeam is provided with a connection station corresponding to the longitudinal adjustment pad.
3. The adjustable, modular, multi-functional tunnel mobile platform according to claim 2, characterized in that, The longitudinal adjusting pad is an I-beam with connecting plates at both its upper and lower ends for connection to the main frame or crossbeam via bolts.
4. The adjustable, modular, multi-functional tunnel mobile platform according to claim 3, characterized in that, The longitudinal adjustment pads include multiple specifications of different lengths to support the main frame at different elevations; Alternatively, multiple longitudinal adjustment pads may be joined together longitudinally to support the main frame at different elevations.
5. The adjustable, modular, multi-functional tunnel mobile platform according to claim 1, characterized in that, There are multiple working platforms at the same elevation of the main frame corresponding to the tunnel extension direction, and the outer side of the main frame is provided with slide rails that extend horizontally along the transverse direction of the main frame, corresponding to the working platforms.
6. The adjustable, modular, multi-functional tunnel mobile platform according to claim 5, characterized in that, The slide rail includes two C-shaped channel steels distributed opposite each other, and a support rod corresponding to the lower part of the working platform is provided between the two C-shaped channel steels.
7. The adjustable, modular, multi-functional tunnel mobile platform according to claim 6, characterized in that, The inner side of the main frame is provided with a drive rod corresponding to the working platform, so as to drive the working platform to slide along the two C-shaped channel steels.
8. The adjustable, modular, multi-functional tunnel mobile platform according to claim 6, characterized in that, The C-shaped channel steel is equipped with an insertion tube, and the guardrail is inserted into the insertion tube accordingly.