A shaft construction platform

Abstract

The utility model discloses a kind of vertical shaft construction platforms, belong to underground engineering construction equipment technical field;It includes: support frame, support shell and leveling assembly, the support frame includes multiple transverse and longitudinal staggered setting support beam;Support shell is set on the support frame and is fixedly connected with the support frame, forms circular platform;The leveling assembly includes multiple supporting legs and liftable leveling unit, multiple the supporting leg is fixedly connected with the outside of the support shell, and the leveling unit is set on the supporting leg, to adjust the distance of supporting leg and vertical shaft construction surface, ensure the stability of construction platform.The utility model can assist vertical shaft construction platform to keep stable relative to construction plane, avoid to occur to shake.

Description

Technical Field

[0001] This utility model relates to the field of underground engineering construction equipment technology, and in particular to a vertical shaft construction platform. Background Technology

[0002] Generally speaking, the three-step method for shaft construction is: drilling the pilot hole, reversing the pilot hole, and manually excavating to form the shaft in one step.

[0003] When manually enlarging the shaft, blast holes need to be drilled along the perimeter of the pilot shaft for blasting and enlarging. However, during the drilling process, the existing shaft construction platform cannot be matched with the uneven shaft construction surface, and it is prone to relative vibration, which is not conducive to the workers' construction. Utility Model Content

[0004] In view of this, it is necessary to provide a shaft construction platform to solve the problem of existing shaft construction platforms being prone to shaking due to uneven contact surfaces.

[0005] This utility model provides a vertical shaft construction platform, including: A support frame, comprising a plurality of cross-shaped support beams; A supporting shell is fitted onto the supporting frame and fixedly connected to the supporting frame to form a circular platform; The leveling assembly includes multiple support legs and a liftable leveling unit. The multiple support legs are fixedly connected to the outer side of the support shell, and the leveling unit is disposed on the support legs to adjust the distance between the support legs and the shaft construction surface, thereby ensuring the stability of the construction platform.

[0006] Furthermore, the leveling unit includes a scissor lift mechanism and a rotatable screw. The fixed end of the scissor lift mechanism is fixedly connected to the outrigger, and the movable end of the scissor lift mechanism is positioned relative to the shaft construction surface. The screw is rotatably connected to the scissor lift mechanism to drive the movable end to move relative to the fixed end.

[0007] Furthermore, the outrigger has an installation groove at one end relative to the shaft construction surface, and the scissor lifting mechanism is installed in the installation groove, which can be stored in the installation groove.

[0008] Furthermore, the multiple support legs are equidistantly arranged around the supporting shell, and the leveling unit is arranged in a one-to-one correspondence with each support leg.

[0009] Furthermore, the supporting shell includes an annular ring and a mesh plate. The end of the supporting beam is fixedly connected to the inner side of the annular ring, the outer ring of the mesh plate is connected to the top of the annular ring, and the middle part of the mesh plate abuts against the supporting beam. The support leg is fixedly connected to the bottom of the annular ring.

[0010] Furthermore, the support beam has a plane on one side relative to the support shell that is adapted to the grid plate.

[0011] Furthermore, the support beam is an airfoil beam, and the thickness of the support beam in the middle is greater than the thickness at both ends.

[0012] Furthermore, at least one of the support beams is arranged laterally, and multiple support beams are arranged longitudinally. The longitudinally arranged support beams are arranged at equal intervals, and the middle part of the longitudinally arranged support beam is fixedly connected to the transversely arranged support beam.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: (1) A vertical shaft construction platform of the present invention is provided with a leveling component. The leveling component includes multiple legs and an adjustable leveling unit. The legs are fixed to the outside of the supporting shell. The leveling unit is disposed on the legs. The leveling unit can move relative to the vertical shaft construction surface, thereby changing the distance between the legs and the vertical shaft construction surface. No matter what the terrain of the vertical shaft construction surface is, it can stably contact the vertical shaft construction surface as needed to ensure the stability of the construction platform.

[0014] (2) The present invention provides a vertical shaft construction platform, which is equipped with a support frame and a support shell. The support frame is composed of multiple intersecting support beams, which can effectively improve the overall load-bearing capacity of the support frame and transport large equipment. The support shell is fitted and fixed to the outside of the frame to form a circular platform, which can further strengthen the structural strength of the support frame and improve its load-bearing capacity. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 3 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 4 This is a schematic diagram of the leveling unit in this utility model; Figure 5 This is a schematic diagram of the structure supporting the outer shell in this utility model; Figure 6 This is a schematic diagram of the supporting frame structure in this utility model; Figure 7 This is a schematic diagram illustrating the use of this utility model.

[0016] In the diagram, 100 is the supporting frame; 110 is the supporting beam; and 111 is the plane. 200. Supporting shell; 210. Annular ring; 220. Mesh plate; 300. Leveling assembly; 310. Support leg; 311. Mounting slot; 320. Leveling unit; 321. Scissor lift mechanism; 322. Screw; 400. Shaft; 500, pilot well; 600. Shaft construction face. Detailed Implementation

[0017] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0018] This embodiment of a shaft construction platform relates to the field of underground engineering construction equipment technology. By setting a support frame 100 on the shaft construction platform, the load-bearing capacity of the support frame 100 can be effectively enhanced. A leveling component 300 is set at the bottom of the shaft construction platform to help maintain the stability of the shaft 400 construction platform relative to the construction plane 111 and prevent shaking.

[0019] Please see Figures 1 to 7 This embodiment of a shaft construction platform includes a support frame 100, a support shell 200, and a leveling assembly 300. The support frame 100 is composed of multiple intersecting support beams 110, which can effectively improve the overall load-bearing capacity of the support frame 100 for transporting large equipment. The support shell 200 is fitted and fixed to the outside of the frame to form a circular platform, which can further strengthen the structural strength of the support frame 100 and improve its load-bearing capacity. The leveling assembly 300 includes multiple legs 310 and an adjustable leveling unit 320. The legs 310 are fixed to the outside of the support shell 200, and the leveling unit 320 is disposed on the legs 310. The leveling unit 320 can move relative to the shaft construction surface 600, thereby changing the distance between the legs 310 and the shaft construction surface 600. Regardless of the terrain of the shaft construction surface 600, it can stably contact the shaft construction surface 600 as needed, ensuring the stability of the construction platform.

[0020] During use, the outriggers 310 are distributed circumferentially along the outer shell. Each outrigger 310 is equipped with an independent leveling unit 320. When there are unevenness on the shaft construction surface 600, the corresponding leveling unit 320 can be extended or shortened individually to keep the bottom surface of the platform in parallel contact with the construction surface.

[0021] In some embodiments, please refer to Figure 4 The leveling unit 320 includes a scissor lift mechanism 321 and a rotatable screw 322. The fixed end of the scissor lift mechanism 321 is fixedly connected to the support leg 310, and the movable end of the scissor lift mechanism 321 is set relative to the vertical shaft construction surface 600. The screw 322 is rotatably connected to the scissor lift mechanism 321. By rotating the screw 322, the distance between the movable end and the fixed end of the scissor lift mechanism 321 can be adjusted, so that the bottom surface of the platform keeps in parallel contact with the construction surface, thereby enhancing the stability of the vertical shaft construction platform.

[0022] In practical implementation, the scissor lift mechanism 321 is a telescopic structure composed of cross links, which can be implemented using an X-shaped link assembly with hinges. The lifting function is achieved by changing the included angle of the links. The screw 322 is a rotary drive component with external threads, which can be implemented using a trapezoidal threaded rod and a nut structure. Rotating the screw 322 pushes the movable end of the scissor lift mechanism 321 to produce displacement.

[0023] When the shaft construction surface 600 is uneven, rotating the screw 322 causes the movable end of the scissor lift mechanism 321 to produce linear displacement. Due to the force-saving characteristics of the linkage structure of the scissor lift mechanism 321, the rotation of the screw 322 requires relatively little force, allowing manual operation to drive the overall relative movement of the shaft construction platform, thereby precisely adjusting the contact distance between the outrigger 310 and the construction surface. After the movable end contacts the construction surface, the multi-link structure of the scissor lift mechanism 321 forms a stable support surface, effectively distributing the platform load. The self-locking characteristic of the screw 322 prevents displacement backlash caused by vibration during construction, ensuring that the adjusted height of the outrigger 310 remains constant.

[0024] Traditional 400mm vertical shaft platforms typically use hydraulic cylinders or threaded sleeves for height adjustment. Hydraulic systems pose a risk of oil leakage and require an additional power source, while threaded sleeves have limited adjustment stroke and are labor-intensive to operate. In contrast, the scissor lift mechanism 321 offers a larger adjustment stroke within the same volume, and the screw 322 drive system combines mechanical self-locking with precise fine-tuning, achieving stable and reliable platform leveling without external power.

[0025] In some embodiments, please refer to Figure 3 and Figure 4 The outrigger 310 has an installation groove 311 at one end relative to the vertical shaft construction surface 600. The scissor lifting mechanism 321 is installed in the installation groove 311. The scissor lifting mechanism 321 can be stored in the installation groove 311. The scissor lifting mechanism 321 is integrated into the installation groove 311 of the outrigger 310, which not only achieves physical protection of key components, but also reduces the overall size of the platform through the storage design.

[0026] In practical implementation, the mounting groove 311 is a recessed structure located at the end of the outrigger 310 and facing the shaft construction surface 600. It can be formed by machining or welding, and its depth and width are designed according to the dimensions of the scissor lift mechanism 321. The mounting groove 311 is used to completely accommodate the scissor lift mechanism 321 in the non-working state, preventing it from being exposed to the external environment.

[0027] When the shaft construction platform needs to be moved or is in a non-leveled state, the scissor lift mechanism 321 is driven by the screw 322 to retract its movable end towards the fixed end, causing multiple sets of hinged connecting rods to fold, ultimately embedding the entire mechanism completely into the mounting groove 311 at the end of the outrigger 310. At this time, the side wall of the mounting groove 311 forms a protective enclosure for the lifting mechanism, preventing damage to the mechanism caused by the impact of gravel generated during blasting operations or collisions with construction equipment. When leveling is required, the screw 322 rotates in the opposite direction, driving the movable end to extend out of the mounting groove 311, and the scissor lift mechanism 321 unfolds to the working state. The contact distance between the outrigger 310 and the construction surface is adjusted by the extension and retraction of the multi-stage connecting rods.

[0028] This application effectively prevents direct damage to the leveling component 300 from the impact of crushed rocks during blasting operations, extending the service life of the mechanism; at the same time, the retractable design allows the platform to occupy less radial space when moving within the shaft 400, avoiding interference with the shaft wall; the folded lifting mechanism can also eliminate structural gaps in the non-working state, ensuring the overall stability of the platform during transportation.

[0029] For further implementation methods, please refer to Figures 1 to 3 Multiple outriggers 310 are equidistantly arranged around the support shell 200, and leveling units 320 are arranged one-to-one with outriggers 310. The outriggers 310 and leveling units 320 are equidistantly distributed to form a stable support system, which can ensure that the platform always maintains reliable contact with the well wall during drilling and blasting operations.

[0030] In the specific implementation process, the outriggers 310 are evenly distributed around the circumference of the supporting shell 200, forming a circular array arrangement. The included angle between the outriggers 310 is 45°, and a total of 8 outriggers 310 are set. This arrangement can ensure that the platform is subjected to balanced forces in all directions. The leveling unit 320 is set one-to-one with the outriggers 310. Each leveling unit 320 adopts a single-point independent drive method, and the height of each support point can be adjusted individually.

[0031] When there are local protrusions or depressions on the shaft construction surface 600, the leveling unit 320 at the corresponding position can be raised and lowered individually, and the platform as a whole can be kept level through the coordinated adjustment of each support leg 310.

[0032] Traditional 400mm vertical shaft platform outriggers (310) often employ asymmetrical arrangements or centralized leveling methods, which can easily lead to platform tilting or localized stress concentration. This solution utilizes an equidistantly distributed independent leveling system, enabling rapid response to height deviations in different orientations and avoiding cascading imbalances caused by single-point adjustments. Through this technical solution, this application effectively resolves the platform vibration problem caused by uneven contact between the vertical shaft construction platform and the shaft wall. The equidistantly distributed outriggers (310) form a stable support system, which, combined with the independent leveling unit (320), achieves millimeter-level height fine-tuning, ensuring reliable contact between the platform and the shaft wall during drilling and blasting operations.

[0033] In some embodiments, please refer to Figure 5 The supporting shell 200 includes an annular ring 210 and a grid plate 220. The end of the supporting beam 110 is fixedly connected to the inner side of the annular ring 210, the outer ring of the grid plate 220 is connected to the top of the annular ring 210, and the middle of the grid plate 220 abuts against the supporting beam 110. The outrigger 310 is fixedly connected to the bottom of the annular ring 210. The rigid connection between the annular ring 210 and the supporting beam 110 forms a stable circular bearing base. The hollow structure of the grid plate 220 provides a working surface while reducing wind resistance. The multi-point support of the grid plate 220 by the supporting beam 110 effectively suppresses local deformation. The direct connection between the outrigger 310 and the annular ring 210 ensures that the leveling force can be quickly transmitted to the entire supporting shell 200, so that the platform can remain horizontal even when the wall of the shaft 400 is uneven, providing a stable construction foundation for drilling operations.

[0034] In a specific embodiment, the annular ring 210 is an annular structure surrounding the support frame 100. It can be formed by rolling and welding steel plates or structural steel sections, providing rigid support and constraining the radial deformation of the support frame 100. The mesh plate 220 is a perforated plate laid on top of the annular ring 210. The perforated plate can be made of perforated steel plates or welded steel mesh, serving as a working surface for workers to stand on and for equipment to be placed. The support beam 110 is connected to the annular ring 210 by welding or bolting to fix the end of the support beam 110 to the inner wall of the annular ring 210, forming an integral load-bearing structure between the support frame 100 and the annular ring 210.

[0035] The contact relationship between the grid plate 220 and the support beam 110 means that the central area of ​​the grid plate 220 directly contacts the surface of the support beam 110, and the load borne by the grid plate 220 is distributed through the support beam 110. The connection between the support leg 310 and the bottom of the annular ring 210 means that the support leg 310 is welded to the lower edge of the outer periphery of the annular ring 210, so that the supporting force of the leveling component 300 is directly transmitted to the annular ring 210.

[0036] Specifically, the annular ring 210 serves as the main structure supporting the outer shell 200, forming a stable circular frame fixed to the end of the support beam 110. A grid plate 220 covers the top of the annular ring 210, with its outer ring connected to the annular ring 210 by welding or snap-fit, and its central area contacting the upper surface of the support beam 110. When workers operate on the grid plate 220, the load is transferred through the grid plate 220 to the support beam 110 and the annular ring 210, creating a multi-point distributed stress pattern. The support legs 310 are directly fixed to the bottom of the annular ring 210, and the leveling unit 320 adjusts the height of the support legs 310 to keep the annular ring 210 level, thereby ensuring the stability of the entire supporting shell 200.

[0037] In some embodiments, the support beam 110 has a plane 111 adapted to the grid plate 220 on one side opposite the support housing 200. The plane 111 can cooperate with the grid plate 220 to bear the weight of personnel and equipment on the construction platform. The support beam 110 can be made of I-beams or H-beams to bear the overall load of the construction platform. The plane 111 adapted to the grid plate 220 refers to the flat surface formed at the contact point between the support beam 110 and the grid plate 220. The shape of the plane 111 matches the bottom contour of the grid plate 220 to ensure a stable support interface is formed when the two are in contact.

[0038] When the grid plate 220 is laid on top of the support beam 110, its bottom is in close contact with the plane 111 of the support beam 110, maximizing the contact area, thereby optimizing the stress distribution of the beam and concentrating the material in the central area that bears the maximum bending moment.

[0039] During construction, the load borne by the platform is evenly transferred to the plane 111 of the support beam 110 through the grid plate 220, avoiding deformation or displacement caused by local stress concentration.

[0040] The cross-sectional shape of a wing-like beam resembles that of an aircraft wing. Specifically, it can be achieved using a cross-section with curved or broken-line transitions on the upper and lower surfaces, thus improving bending stiffness. The cross-sectional height in the mid-span region of the beam is greater than that near the ends, which can be achieved through a gradually changing or stepped cross-section design. The wing-like beam design optimizes the stress distribution, concentrating material in the central region where the maximum bending moment is experienced.

[0041] When the construction platform is under load, the thickened central section of the wing beam reduces deformation by enhancing its bending resistance, while the thinner sections at both ends reduce stress concentration at the connection with the annular ring 210. The longitudinally arranged support beams 110 form a mesh support structure through equidistant spacing, and the transversely arranged support beams 110 are fixedly connected to the longitudinal beams to form intersection nodes, further distributing the load.

[0042] In some embodiments, please refer to Figure 6 One support beam 110 is arranged laterally, and multiple support beams 110 are arranged longitudinally. The longitudinal support beams 110 are evenly spaced, and their middle parts are fixedly connected to the transverse support beams 110. The longitudinal support beams 110 decompose the impact force into axial components and transmit them to the transverse support beams 110, which then evenly transmit the load to the annular ring 210. This graded force transmission mechanism significantly improves the platform's resistance to lateral impacts.

[0043] Traditional 400mm vertical shaft platforms often employ single-direction support beams 110 or randomly distributed support structures, resulting in uneven load distribution and susceptibility to localized deformation. This solution constructs an orthogonal grid structure through rigid connections between the transverse and longitudinal support beams 110. This allows the construction platform to effectively suppress structural resonance and prevent asymmetric deformation of the support beams 110 when subjected to blasting vibrations, thanks to the stress dispersion effect of the grid nodes.

[0044] Working principle: The hoisting device can lift the vertical shaft construction platform into the vertical shaft 400 and directly seal the guide shaft 500, preventing workers from falling from the guide shaft 500. To address the uneven ground surface of the vertical shaft construction surface 600, the distance between the outriggers 310 and the vertical shaft construction surface 600 can be adjusted as needed, ensuring stable contact between the leveling unit 320 and the vertical shaft construction surface 600, guaranteeing the stability of the construction platform.

[0045] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the present utility model.

Claims

1. A vertical shaft construction platform, characterized in that, include: A support frame, comprising a plurality of cross-shaped support beams; A supporting shell is fitted onto the supporting frame and fixedly connected to the supporting frame to form a circular platform; The leveling assembly includes multiple support legs and a liftable leveling unit. The support legs are fixedly connected to the outer side of the supporting shell. The leveling unit is mounted on the support legs to adjust the distance between the support legs and the shaft construction surface, ensuring the stability of the construction platform. The leveling unit includes a scissor-lift mechanism and a rotatable screw. The fixed end of the scissor-lift mechanism is fixedly connected to the support legs, and the movable end of the scissor-lift mechanism is positioned relative to the shaft construction surface. The screw is rotatably connected to the scissor-lift mechanism to drive the movable end to move relative to the fixed end. One end of the outrigger relative to the vertical shaft construction surface is provided with an installation groove, and the scissor lifting mechanism is disposed in the installation groove and can be housed in the installation groove; multiple outriggers are equidistantly arranged around the support shell, and the leveling unit is arranged one-to-one with the outrigger; the support shell includes an annular ring and a grid plate, the end of the support beam is fixedly connected to the inner side of the annular ring, the outer ring of the grid plate is connected to the top of the annular ring, and the middle part of the grid plate abuts against the support beam; the outrigger is fixedly connected to the bottom of the annular ring.

2. The shaft construction platform according to claim 1, characterized in that, The support beam has a plane on one side relative to the support shell that is adapted to the grid plate.

3. A shaft construction platform according to claim 2, characterized in that, The support beam is a wing-shaped beam, and the thickness of the middle part of the support beam is greater than the thickness of the two ends.

4. A shaft construction platform according to claim 3, characterized in that, At least one of the support beams is arranged laterally, and multiple support beams are arranged longitudinally. The longitudinally arranged support beams are arranged at equal intervals, and the middle part of the longitudinally arranged support beam is fixedly connected to the transversely arranged support beam.

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