A movable construction platform for a lock shaft

Abstract

A movable construction platform of a gate shaft comprises a fixed beam, a winch, a construction platform, a screw rod supporting leg and a telescopic driving member, the fixed beam is fixed at the shaft mouth, the winch is fixed on the fixed beam, the construction platform is hung in the shaft and connected with the winch through a traction rope, the first end of the screw rod supporting leg is hinged at the bottom of the construction platform, the second end is used for fixing on the concrete key groove of the shaft wall, the first end of the telescopic driving member is hinged at the bottom of the construction platform, the second end is hinged on the screw rod supporting leg, and the screw rod supporting leg is driven to rotate around the first end through the telescopic action. The construction platform has mobility, is driven to lift through the winch, can be used for the whole construction process of the shaft, does not need to repeatedly set up the construction platform, and can effectively improve the construction efficiency. In addition, the screw rod supporting leg can form stable support for the construction platform, avoids the shaking of the construction platform, and improves the construction safety.

Description

Technical Field

[0001] This utility model relates to the field of gate shaft construction technology, and in particular to a mobile construction platform for gate shafts. Background Technology

[0002] Due to its special working requirements, the gate shaft structure requires several construction steps after excavation and support, including lining concrete pouring, consolidation grouting, gate embedded part installation, and secondary concrete pouring. The gate shaft construction involves numerous procedures with a strict sequential order, making simultaneous construction impossible.

[0003] Traditional construction methods include self-elevating slipform (climbing formwork), cantilever formwork, and ordinary formwork. While self-elevating slipform (climbing formwork) or cantilever formwork is convenient during the concrete lining stage, subsequent construction processes require repeated platform setups for each step, resulting in time and labor costs. Ordinary formwork requires erecting scaffolding from bottom to top within the shaft, leading to slow construction progress and high safety risks, especially in ultra-deep shafts where scaffolding cannot be erected all at once; cantilever scaffolding must be installed after the lining has been poured to a certain elevation, further complicating the construction process. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a mobile construction platform for gate shafts. This construction platform can be used throughout the entire construction process of the shaft without repeatedly setting up construction platforms or erecting scaffolding in stages, which can effectively improve construction efficiency and has the characteristics of high safety.

[0005] To achieve the above objectives, the present invention provides a mobile construction platform for a gate shaft, comprising a fixed beam, a winch, a construction platform, a screw support leg, and a telescopic drive component. The fixed beam is fixed at the shaft opening; the winch is fixed to the fixed beam; the construction platform is suspended inside the shaft and connected to the winch via a traction rope, and is driven by the winch to move up and down within the shaft; the first end of the screw support leg is hinged to the bottom of the construction platform, and the second end is fixed to a concrete keyway in the shaft wall; the first end of the telescopic drive component is hinged to the bottom of the construction platform, and the second end is hinged to the screw support leg, driving the screw support leg to rotate around its first end through telescopic movement.

[0006] As a further improvement of this utility model, the construction platform includes a steel main beam, at least one foundation platform, and an extension platform. The foundation platform is fixed on the steel main beam, and the extension platform is detachably connected to the side of the foundation platform.

[0007] As a further improvement of this utility model, the base platform is provided with at least two layers and is arranged at intervals between them; the steel main beam is fixed to the bottom of the lowest base platform; the side of each base platform is connected to the extension platform; and vertical reinforcing beams are connected between adjacent base platforms and between adjacent extension platforms.

[0008] As a further improvement of this utility model, both the basic platform and the extended platform include a rectangular frame and a steel mesh plate. The rectangular frame is welded from structural steel, and the steel mesh plate is laid on the rectangular frame.

[0009] As a further improvement of this utility model, the extended platform is detachably connected to the base platform by high-strength bolts.

[0010] As a further improvement of this utility model, a fixed pulley is provided on the main steel beam; the first end of the traction rope is connected to the winch, and the second end passes downward around the fixed pulley and is fixed in the opposite direction to the fixed beam.

[0011] As a further improvement of this utility model, the lead screw support leg and the telescopic drive component are respectively hinged to the bottom of the steel main beam.

[0012] As a further improvement of this utility model, a staircase is provided between two adjacent basic platforms.

[0013] As a further improvement of this utility model, scissor braces are arranged in a cross pattern between two adjacent basic platforms.

[0014] As a further improvement of this utility model, the telescopic drive component is a telescopic pneumatic cylinder or a telescopic hydraulic cylinder.

[0015] The beneficial effects of this invention are as follows: The construction platform is mobile and can be raised and lowered by a winch, making it suitable for the entire construction process of a vertical shaft. This eliminates the need for repeated platform erection, effectively improving construction efficiency. Furthermore, the screw-rod support legs provide stable support to the platform, preventing swaying and thus enhancing construction safety. Attached Figure Description

[0016] Figure 1 A three-dimensional schematic diagram of the overall structure of the construction platform. Figure 1 ;

[0017] Figure 2 A three-dimensional schematic diagram of the overall structure of the construction platform. Figure 2 ;

[0018] Figure 3 This is a side view of the overall structure of the construction platform;

[0019] Marking descriptions: 1. Fixed beam; 2. Winch; 21. Traction rope; 3. Construction platform; 31. Main steel beam; 32. Foundation platform; 33. Extension platform; 34. Vertical reinforcing beam; 35. Scissor brace; 36. Fixed pulley; 4. Screw support leg; 5. Telescopic drive component; 6. Staircase. Detailed Implementation

[0020] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0021] like Figure 1-3 As shown, a mobile construction platform for a gate shaft includes a fixed beam 1, a winch 2, a construction platform 3, a screw support leg 4, and a telescopic drive component 5.

[0022] Fixed beam 1 is fixed at the shaft opening. Winch 2 is fixed to fixed beam 1. Construction platform 3 is suspended inside the shaft and connected to winch 2 via traction rope 21. It is driven by winch 2 to move up and down inside the shaft, thus achieving the mobility of construction platform 3.

[0023] The lead screw support leg 4 and the telescopic drive component 5 are respectively hinged to the bottom of the construction platform 3, and the lead screw support leg 4 and the telescopic drive component 5 are hinged together, so that the angle of the lead screw support leg 4 can be controlled by the telescopic drive component 5. The lead screw support leg 4 itself can adjust its length. By adjusting the angle and length of the lead screw support leg 4, it is fixed to the concrete keyway of the shaft wall, thereby providing support for the construction platform 3.

[0024] The construction platform 3 includes a steel main beam 31 and a three-layer foundation platform 32. The foundation platform 32 includes a rectangular frame and a diamond-shaped steel mesh. The rectangular frame is welded from steel sections, and the diamond-shaped steel mesh is laid on the rectangular frame. The three-layer foundation platforms 32 are spaced vertically, and adjacent foundation platforms 32 are connected by vertical reinforcing beams 34 and intersecting scissor braces 35 to strengthen the connection between the foundation platforms 32. The steel main beam 31 is a rectangular frame welded from H-beams, arranged horizontally, to support the foundation platforms 32. The lowest foundation platform 32 is fixed to the steel main beam 31. A staircase 6 is provided between adjacent foundation platforms 32 to facilitate quick passage for construction personnel between the different foundation platforms 32. In other embodiments, the foundation platform 32 may have only one or more layers depending on implementation requirements.

[0025] The construction platform 3 also includes several extension platforms 33. The extension platforms 33 are installed on the base platform 32 to expand the working range of the construction platform 3, facilitating construction at different dimensional locations within the shaft. The extension platforms 33 are not installed during the lower part of the shaft construction but are installed when construction begins on the expanded horizontal section of the upper shaft. Each extension platform 33 comprises a rectangular frame and a diamond-shaped steel mesh. The rectangular frame is welded from structural steel, and the diamond-shaped steel mesh is laid on the rectangular frame. Each base platform 32 is detachably connected to the extension platform 33 on all four sides using high-strength bolts. To ensure the secure connection between adjacent extension platforms 33, vertical reinforcing beams 34 are also connected between adjacent extension platforms 33.

[0026] During construction, whether the extension platform 33 is installed or not, the side of the construction platform 3 should maintain a distance of 30cm from the final concrete edge of the shaft structure to avoid collision accidents.

[0027] The specific connection structure between the winches 2 and the construction platform 3 is as follows: Two fixed beams 1 are provided. Each fixed beam 1 is composed of two H-beams joined together. The two fixed beams 1 are fixed parallel to each other at the shaft opening. Two winches 2 are installed on the top of each fixed beam 1 by fixing bolts, for a total of four winches 2. The bottom is welded with lugs for fixing the traction ropes 21. Fixed pulleys 36 are respectively installed at the four corners of the steel main beam 31. The traction ropes 21 are made of steel wire rope. The first end of the traction ropes 21 of the four winches 2 is connected to the corresponding winch 2, and the second end is passed downwards over the corresponding fixed pulley 36 and then fixed in the opposite direction to the lugs of the fixed beam 1, so that the four corners of the steel main beam 31 are pulled by the winches 2, so that the construction platform 3 can be raised and lowered smoothly in the shaft.

[0028] The specific connection structure of the screw support leg 4, the telescopic drive component 5, and the construction platform 3 is as follows: Both ends of the screw support leg 4 and the telescopic drive component 5 are respectively provided with hinge seats. The first end of the screw support leg 4 is hinged to the bottom of the steel main beam 31 via the hinge seat, and the second end can be fixed at multiple angles to the concrete keyway of the shaft wall via the hinge seat. The length of the rotating screw support leg 4 can be adjusted by rotation. The telescopic drive component 5 is preferably a telescopic pneumatic cylinder. The first end of the telescopic drive component 5 is hinged to the bottom of the steel main beam 31 via the hinge seat, and there is a certain distance between the first ends of the screw support leg 4 and the telescopic drive component 5. The second end of the telescopic drive component 5 is hinged to the middle of the screw support leg 4 via the hinge seat. The telescopic movement of the telescopic drive component 5 can drive the screw support leg 4 to rotate around its first end, thereby realizing the angle adjustment of the screw support leg 4. In other embodiments, the telescopic drive component 5 can also be a telescopic hydraulic cylinder.

[0029] The construction platform 3 provided in this embodiment has the following significant advantages compared to traditional construction methods:

[0030] I. Significantly Improved Construction Efficiency. The construction platform 3 is a mobile construction platform 3, which is lifted and lowered by a winch 2. A single installation can cover the entire construction area of ​​the vertical shaft from bottom to top, eliminating the need to repeatedly set up construction platforms or erect scaffolding in stages. This effectively reduces equipment setup time and greatly improves construction efficiency.

[0031] Second, high safety. The combined structure of the screw support leg 4 and the telescopic drive component 5 can form a stable support for the construction platform 3 after it is raised and lowered to the target position, keeping the construction platform 3 stable and avoiding the risks of swaying and instability of traditional scaffolding, thus improving construction safety.

[0032] Third, it is highly adaptable. The detachable expansion platform 33 makes it easy to adjust the working area of ​​the construction platform 3 according to construction needs, and it is suitable for the construction requirements of different stages of vertical shaft construction, such as the first-stage concrete pouring construction, shaft wall grouting construction, door slot embedded part installation, and second-stage concrete construction.

[0033] The above-described embodiments are merely illustrative of this utility model. Any equivalent embodiments made by those skilled in the art without departing from the technical features disclosed in this utility model, and without departing from the technical features of this utility model, shall still fall within the scope of the technical features of this utility model.

Claims

1. A mobile construction platform for a gate shaft, characterized in that: The system includes a fixed beam, a winch, a construction platform, a screw support leg, and a telescopic drive mechanism. The fixed beam is fixed at the shaft opening; the winch is fixed to the fixed beam; the construction platform is suspended inside the shaft and connected to the winch via a traction rope, and is driven by the winch to move up and down within the shaft; the first end of the screw support leg is hinged to the bottom of the construction platform, and the second end is fixed to a concrete keyway in the shaft wall; the first end of the telescopic drive mechanism is hinged to the bottom of the construction platform, and the second end is hinged to the screw support leg, driving the screw support leg to rotate around its first end through telescopic movement.

2. The mobile construction platform for a gate shaft according to claim 1, characterized in that: The construction platform includes a steel main beam, at least one foundation platform, and an extension platform. The foundation platform is fixed to the steel main beam, and the extension platform is detachably connected to the side of the foundation platform.

3. The mobile construction platform for a gate shaft according to claim 2, characterized in that: The base platform has at least two layers, spaced apart vertically; the main steel beam is fixed to the bottom of the lowest base platform; the side of each base platform is connected to the extension platform; vertical reinforcing beams connect adjacent base platforms and adjacent extension platforms.

4. A mobile construction platform for a gate shaft according to claim 2 or 3, characterized in that: Both the basic platform and the expansion platform include a rectangular frame and a steel mesh plate. The rectangular frame is welded from structural steel, and the steel mesh plate is laid on the rectangular frame.

5. A mobile construction platform for a gate shaft according to claim 2 or 3, characterized in that: The extended platform is detachably connected to the base platform via high-strength bolts.

6. A mobile construction platform for a gate shaft according to claim 2 or 3, characterized in that: The main steel beam is equipped with a fixed pulley; the first end of the traction rope is connected to the winch, and the second end passes downwards around the fixed pulley and is fixed in the opposite direction to the fixed beam.

7. A mobile construction platform for a gate shaft according to claim 2 or 3, characterized in that: The lead screw support leg and the telescopic drive component are respectively hinged to the bottom of the steel main beam.

8. The mobile construction platform for a gate shaft according to claim 3, characterized in that: A staircase is provided between the two adjacent foundation platforms.

9. A mobile construction platform for a gate shaft according to claim 3, characterized in that: The two adjacent foundation platforms are provided with scissor bracing arranged in a cross pattern.

10. A mobile construction platform for a gate shaft according to claim 1, characterized in that: The telescopic drive component is a telescopic pneumatic cylinder or a telescopic hydraulic cylinder.

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