A downhole rail-mounted movable scaffold assisting device
By designing an underground rail-mounted movable scaffolding auxiliary device, the problem of low disassembly and assembly efficiency in traditional underground construction has been solved. It enables rapid adjustment and efficient movement, adapts to the construction needs of complex underground environments, and improves work efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI PROVINCE LUJIANG LONGQIAO MINING
- Filing Date
- 2025-06-11
- Publication Date
- 2026-05-29
Smart Images

Figure CN224300394U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of mining scaffolding and relates to an underground tracked movable scaffolding auxiliary device. Background Technology
[0002] In underground construction, scaffolding is an important tool for supporting workers performing tasks at heights. Traditional scaffolding mostly uses a fixed structure, with components manually transported to the construction site for assembly. While structural parameters can be adjusted according to construction needs, the frequent disassembly and assembly results in a large workload and low efficiency.
[0003] Although aerial work platforms have mobility, they may be hindered from being deployed or passing through narrow tunnels or complex structures. Customized designs are required. Furthermore, they are prone to jamming, tipping over, and other problems in narrow, damp, and uneven underground environments, making them difficult to transport and pass through. They also have limitations in the construction of large-section underground chambers, poor applicability, and cannot be adjusted in real time according to the site environment. Utility Model Content
[0004] This application provides an underground rail-guided mobile scaffolding auxiliary device, which has high mobility, eliminates the need for secondary disassembly and assembly in roadways or chambers of the same cross section, and uses rail traction to reduce the efficiency of underground relocation from about 8 hours to just a few minutes, greatly improving work efficiency.
[0005] To achieve the above-mentioned technical objectives, the technical solution adopted in this application is a track-mounted movable scaffolding auxiliary device for underground use, which is installed on an underground track and includes scaffolding, a flatbed cart, upright pads, and main and auxiliary legs.
[0006] The upright pad is placed on the flatbed truck, and the surface area of the upright pad is larger than the supporting surface of the flatbed truck.
[0007] The scaffolding is installed on the upright base plate;
[0008] The main auxiliary leg is positioned between the bottom surface of the upright pad and the ground, supporting the portion of the upright pad that extends beyond the surface of the flatbed truck.
[0009] The flatbed vehicle can move along the underground track.
[0010] As an improved technical solution of this application, the scaffolding is an assembled scaffolding.
[0011] As an improved technical solution of this application, the upright pad is welded and fixed to the flatbed vehicle.
[0012] As an improved technical solution of this application, the upright pad has a flat surface and two folded surfaces; the two folded surfaces are located on both sides of the flat surface and form a 90° angle with respect to the flat plate.
[0013] As an improved technical solution of this application, it also includes triangular wooden blocks, which are detachably laid on both sides of the wheels of the flatbed truck to prevent the flatbed truck from moving. Beneficial effects
[0014] Highly adaptable: structural parameters can be quickly adjusted to match different tunnel sizes and construction requirements;
[0015] With a simple structure and low maintenance cost, the overall scaffolding structure is made of φ48 galvanized steel pipes spliced together with fasteners. The galvanized steel pipes are corrosion-resistant, easy to carry, and convenient for secondary transportation.
[0016] With high mobility, tunnels or chambers with the same cross section do not require secondary disassembly and assembly. With rail traction, the efficiency of underground relocation has been reduced from about 8 hours to just a few minutes, greatly improving work efficiency. Attached Figure Description
[0017] Figure 1 A front view of an underground rail-mounted movable scaffolding auxiliary device is shown.
[0018] Figure 2 A left view of an underground tracked movable scaffolding auxiliary device is shown.
[0019] Figure 3 A top view of an underground tracked movable scaffolding auxiliary device is shown.
[0020] Figure 4 Draw a schematic diagram of the underground track structure;
[0021] Figure 5 Draw a structural schematic diagram of the upright pad;
[0022] Figure 6 Draw a schematic diagram of the flatbed truck structure;
[0023] Figure 7 A schematic diagram of the main and auxiliary support legs structure is shown.
[0024] In the diagram, 1. Underground track; 2. Triangular timber; 3. Flatbed trolley; 4. Main and auxiliary support legs; 5. Upright support plate; 6. Horizontal bar; 7. Longitudinal bar; 8. Horizontal brace; 9. Longitudinal brace; 10. Toe board; 11. Scaffold board; 12. Wheel set; 13. Guardrail; 14. Main support pole. Detailed Implementation
[0025] definition:
[0026] In this article, "horizontal" refers to the direction parallel to the running path of the flatbed car 3 along the track 1, such as the horizontal bar 6 in the three rows (horizontal) and four columns (longitudinal) configuration. That is, the horizontal bar 6 is parallel to the direction of the tunnel.
[0027] In this article, "longitudinal" refers to the direction perpendicular to the running path of the flatbed car 3 along the track 1, such as longitudinal horizontal bar 7 or three rows (transverse) and four columns (longitudinal); that is, the direction perpendicular to the direction of the tunnel is longitudinal horizontal bar 7.
[0028] The outrigger supported on the horizontal bar 6 is the horizontal outrigger 8, and the outrigger supported on the longitudinal horizontal bar 7 is the longitudinal outrigger 9.
[0029] like Figure 1 As shown, an underground rail-mounted movable scaffolding auxiliary device is installed on an underground rail 1 and includes scaffolding, a flatbed trolley 3, upright pads 5, and main and auxiliary legs 4.
[0030] The upright pad 5 is placed on the flatbed trolley 3, and the surface area of the upright pad 5 is larger than the supporting surface of the flatbed trolley 3;
[0031] The scaffolding is installed on the upright base plate 5;
[0032] The main auxiliary leg 4 is located between the bottom surface of the upright pad 5 and the ground, supporting the portion of the upright pad 5 that extends beyond the surface of the flatbed 3;
[0033] The flatbed vehicle 3 can move along the underground track 1.
[0034] As an improved technical solution of this application, the scaffolding is an assembled scaffolding.
[0035] As an improved technical solution of this application, the upright pad 5 is welded and fixed to the flatbed vehicle 3.
[0036] like Figure 6 As shown, as an improved technical solution of this application, the upright pad 5 has a flat surface and two folded surfaces, the two folded surfaces forming a 90° angle with respect to the flat plate.
[0037] As an improved technical solution of this application, it also includes triangular wooden blocks 2, which are detachably laid on both sides of the wheels of the flatbed 3 to prevent the flatbed 3 from moving. Example
[0038] like Figure 1-6As shown, an underground rail-mounted movable scaffolding device includes a 38Kg rail (underground rail 1), a flatbed cart 3, triangular wooden blocks 2, main and auxiliary uprights 4, upright pads 5, horizontal bars 6, vertical bars 7, horizontal bracing 8, vertical bracing 9, toe boards 10, footboards 11, wheel sets 12, guardrails 13, and main poles 14.
[0039] The main support pole 14, made of φ48 galvanized steel pipe, serves as the main vertical support pole of the scaffolding, standing vertically on the upright base plate 5. The bottom of the main support pole 14 is fixed to the upright base plate 5 by welding or bolting, and the top is connected to the transverse horizontal pole 6 and longitudinal horizontal pole 7 by fasteners. The bottom of the upright base plate 5 contacts the ground through the main auxiliary support legs 4, distributing the load to the ground. There are a total of 12 main support poles 14, made of φ48 galvanized steel pipe, symmetrically distributed along the longitudinal centerline of the flatbed trolley 3 to form a rectangular grid spatial structure of three rows (transverse) and four columns (longitudinal).
[0040] The horizontal bars 6, horizontal bracing 8, longitudinal bracing 9, longitudinal horizontal bars 7, and main support bars 14 are all made of 48mm galvanized steel pipes. The horizontal bars 6 are arranged horizontally along the transverse direction of the scaffold, and the longitudinal horizontal bars 7 are arranged horizontally along the longitudinal direction of the scaffold, intersecting to form a grid-like frame. The horizontal bars 6 and longitudinal horizontal bars 7 are vertically connected to the main support bars 14 (the horizontal bars 6 connect to the three rows of main support bars 14 horizontally, and the longitudinal horizontal bars 7 connect to the four main support bars 14 in each column longitudinally) via couplers (such as right-angle couplers or swivel couplers), forming the main support framework of the scaffold. The ends of the horizontal bars 6 and longitudinal horizontal bars 7 extend to the edge of the scaffold. The middle sections of the horizontal bars 6 and longitudinal horizontal bars 7 are connected to the horizontal bracing 8 and longitudinal bracing 9 via couplers. The transverse bracing 8 is connected to the off-center point of the fourth layer of the outermost horizontal bar 6 of the scaffold. The longitudinal bracing 9 is connected to the off-center point of the third layer of the longitudinal horizontal bar 7 of the outermost longitudinal bar. The transverse bracing 8, the transverse horizontal bar 6, and the second column of main bars 14 form a triangular stable structure. The longitudinal bracing 9 and the longitudinal horizontal bar 7 form an acute angle to form a stable structure, preventing the scaffold from tilting laterally or longitudinally due to external forces, thus forming a closed structure.
[0041] The scaffold planks 11 are laid directly on the grid frame formed by the horizontal bars 6 and the longitudinal bars 7 at the second-to-last layer of the scaffold, and are fixed to the horizontal bars 6 and the longitudinal bars 7 by overlapping or hooking; the scaffold planks 11 are indirectly supported by the horizontal bars 6 and the longitudinal bars 7.
[0042] The toe board 10 is made of 6mm patterned plate and is continuously arranged along the outer edge of the scaffold board 11. The bottom of the toe board 10 is tightly fitted to the scaffold board 11 and is connected to the main upright 14 by welding or fasteners.
[0043] The wheel set 12 is integrally cast from high-strength cast iron. The wheel set 12 is rigidly connected to the axle of the flatbed 3 through bearings. Triangular wood 2 is provided on both sides of the wheel as a detachable braking device.
[0044] The guardrail 13 consists of uprights and horizontal bars. The uprights are the main poles 14 located on the outermost side of the scaffolding, and the horizontal bars are the horizontal bars 6 and the vertical bars 7 at the top layer, which are connected by fasteners. The horizontal bars are connected to the uprights by fasteners to form a fence structure with a height of not less than 1.2m and a spacing of not more than 2m between the uprights.
[0045] The device described in this application enables rapid transfer of tracked work faces and simultaneously meets the needs of various operations such as shotcrete support and equipment installation in underground tunnels and chambers with different cross-sections. It is fast and efficient, and a single assembly can meet the construction needs of all work faces in a chamber, reducing disassembly, reassembly, and transportation, improving work efficiency, and reducing safety risks.
[0046] The scaffolding is moved back and forth by a flatbed truck 3 to achieve its mobility.
[0047] The upright base plate 5 is made of 22# channel steel. It is spliced and made to a suitable length according to the span (width) of the underground chamber to support the main pole of the scaffold. To maintain stability, the upright base plate 5 and the flatbed truck 3 are welded and fixed.
[0048] like Figure 7 As shown, the main auxiliary support leg 4 serves as the main support for the extended flatbed section support plate 5 and the main support rod 14, balancing the force and sharing the support load of the flatbed.
[0049] The horizontal bar 6, the longitudinal horizontal bar 7, and the main support bar 14 are quickly spliced together with fasteners to form a construction platform that simultaneously meets the requirements of span and height. The horizontal bracing 8 and the longitudinal bracing 9 increase the lateral and longitudinal stability of the scaffolding and prevent the scaffolding from tilting outward or collapsing.
[0050] The scaffold board 11 is a construction platform for the working surface, consisting of guardrail 13 and toe board 10. It supports personnel working, prevents personnel from falling, and blocks falling debris and other small parts, ensuring the safety of construction personnel and personnel lowered to the platform.
[0051] Construction method: By quickly assembling scaffolding, combined with roadways and chambers of different cross sections, secondary shotcreting, support and equipment installation are carried out on the underground chambers, saving manpower and material resources and improving work efficiency.
Claims
1. A track-mounted movable scaffolding auxiliary device for underground mining, installed on an underground track, characterized in that, Includes scaffolding, flatbed trucks, upright base plates, and main and auxiliary support legs; The upright pad is placed on the flatbed truck, and the surface area of the upright pad is larger than the supporting surface of the flatbed truck. The scaffolding is installed on the upright base plate; The main auxiliary leg is positioned between the bottom surface of the upright pad and the ground, supporting the portion of the upright pad that extends beyond the surface of the flatbed truck. The flatbed vehicle can move along the underground track.
2. The underground tracked movable scaffolding auxiliary device according to claim 1, characterized in that, The scaffolding is a modular scaffolding.
3. The underground tracked movable scaffolding auxiliary device according to claim 1, characterized in that, The upright pad is welded and fixed to the flatbed vehicle.
4. The underground tracked movable scaffolding auxiliary device according to claim 1, characterized in that, The upright pad has a flat surface and two folded surfaces; the two folded surfaces are located on both sides of the flat surface and form a 90° angle with respect to the flat surface.
5. The underground tracked movable scaffolding auxiliary device according to claim 1, characterized in that, It also includes triangular blocks, which are detachably laid on both sides of the wheels of the flatbed to prevent the flatbed from moving.