Revolving platform device for multi-sluice construction and construction method thereof

Abstract

The application discloses a recyclable platform device for multi-shaft construction and a construction method thereof, and relates to the technical field of shaft construction. The application uses an upper support plate as a transition platform to build a shaft construction platform in the air, which does not affect the shaft bottom construction operation, and meanwhile, adjacent shafts can also be constructed synchronously. The shaft construction platform adopts the method of first building a main support plate, using a suspender to hang a lower support plate on the upper support plate, and then using the lower support plate as a transition platform to extend the whole construction platform. The structure design is ingenious, the device can be recycled, eight suspenders support the whole construction platform, the safety is guaranteed, and the component connection relationship is simple, and the disassembly and assembly are relatively convenient.

Description

Technical Field

[0001] This invention relates to the field of shaft construction technology, and in particular to a reusable platform device and its construction method for construction in multiple shafts. Background Technology

[0002] In existing technologies, most public and civil buildings have multiple elevator shafts or ventilation shafts. The elevator shafts are arranged side by side, making construction inside the shafts particularly difficult and dangerous. The common construction method is to use steel pipes to erect a ground scaffold all the way to the top inside the shaft, and then lay wooden beams and scaffold boards on the top as a construction platform; or to set up a support at the top of the structure and then install a small suspended platform inside the shaft for construction. The above methods have certain limitations: (1) The scaffolding is erected at a high height, which poses a great safety hazard, is inconvenient to construct, requires a lot of turnover materials, affects the construction of other processes on the bottom working surface, and is not flexible or convenient to use; (2) The suspended platform can only be installed after the construction at the top of the structure is completed, which is time-limited. The suspended platform is a special equipment that requires a special person to operate. The equipment itself has a great safety hazard, a small coverage area, and is inconvenient to construct. These construction defects make multi-shaft construction operations difficult. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention provides a reusable platform device and its construction method for construction within multiple shafts, which suspends the construction platform and does not affect bottom operations.

[0004] To achieve this technical objective, the present invention adopts the following solution: A reusable platform device for construction within multiple shafts includes hooks, an upper support plate, a boom, and an adjustable support mechanism. The hooks are mounted on reinforced concrete beams at the top of the shafts. Upper support plates are spaced apart and overlapped between hooks on adjacent reinforced concrete beams. Interlaced transverse support rods overlap the upper support plates, and booms are mounted on the transverse support rods. The lower end of the boom is connected to the adjustable support mechanism. The adjustable support mechanism includes a bracket, a lower support plate, and an extension support plate. The bracket is connected to the lower part of the boom and is used to increase the friction and stability between the platform device and the structural shaft wall. The lower support plate is connected to the middle of the boom, and the extension support plate is fixedly connected to the lower support plate, together forming a construction platform within the shaft.

[0005] Furthermore, it also includes back ribs, with several back ribs supporting the lower side of the upper support plate.

[0006] Furthermore, the cross-section of the hook is a Z-shaped structure, with the two ends of the back rib overlapping the outer edge of the hook of the adjacent reinforced concrete beam.

[0007] Furthermore, the outer surface of the hanger is threaded, and the upper end of the hanger located above the transverse support rod is equipped with a spring and a nut. The two ends of the spring abut against the nut and the transverse support rod respectively, which serves to adjust the position of the bracket and the lower support plate.

[0008] Furthermore, the lower support plate has a through hole for inserting a hanging rod, and a fastening nut is threaded onto the hanging rod on the lower side of the lower support plate. The outer diameter of the fastening nut is larger than the diameter of the through hole, which serves to support the lower support plate.

[0009] Furthermore, a tray is fixedly connected to the lower end of the boom, and a rotating shaft is fixed on the tray; the bracket includes a triangular resistance rod, a lifting lug, a triangular diagonal rod, and a sliding cylinder. One end of the triangular resistance rod is provided with a collar, which is fitted onto the rotating shaft of the tray, allowing the triangular resistance rod to rotate around the rotating shaft. The other end of the triangular resistance rod is provided with a flexible pad, which abuts against the structural well wall; a lifting lug is fixed in the middle of the triangular resistance rod, one end of the triangular diagonal rod is hinged to the lifting lug, and the other end of the triangular diagonal rod is hinged to the outer wall of the sliding cylinder, which is slidably fitted onto the lower part of the boom.

[0010] The construction method for the aforementioned reusable platform device used in multi-well construction includes the following steps: S1. Attach the hook to the top surface of the reinforced concrete beam and place a longitudinal back brace on the hook inside the shaft; S2. Lay support plates at intervals on the upper part of the back rib; S3. Install the bracket structure at the bottom of the hanger. Initially, the triangular resistance bar is in the retracted state. Then, install the support plate and use the fastening nuts to support the support plate. S4. Lower the assembled adjustable support mechanism and the boom through the space reserved between the two upper support plates into the shaft below the upper support plate. As the triangular resistance rod is released, the end of the triangular resistance rod abuts against the structural shaft wall. Then, lift the boom so that its upper end passes through the gap of the horizontal support rod. Install a spring on the top of the boom and tighten the nut so that the boom can be smoothly suspended on the horizontal support rod. S5. After the lower support plate is installed in place, the construction workers will climb down onto the lower support plate and attach the extension support plate between the adjacent lower support plates and to the outside of the lower support plate to complete the construction platform setup.

[0011] Furthermore, when lowering the lower support plate, temporary fixing ropes are used to wrap the lower support plate for double protection, and a hanging rod is connected to each of the four corners of the lower support plate.

[0012] Compared with existing technologies, the advantages of this invention are as follows: This invention utilizes an upper support plate as a transition platform to suspend and construct a construction platform within the shaft, without affecting construction operations at the bottom of the shaft, while allowing simultaneous construction in adjacent shafts. The construction platform within the shaft is constructed by first erecting the main support plate, then using booms to suspend the lower support plate onto the upper support plate. The lower support plate then serves as a transition platform, extending the entire construction platform. The ingenious structural design allows for reusability of the device. Eight booms support the entire construction platform, ensuring safety. The component connections are simple, and assembly and disassembly are convenient. Attached Figure Description

[0013] Figure 1 A side cross-sectional view of the reusable platform device for construction within multiple shafts provided by the present invention. Figure 2 for Figure 1 A magnified view of a section at point A in the middle; Figure 3 This is a top view of the reusable platform device for construction within multiple shafts provided by the present invention. The following are marked in the diagram: 1. Hook; 2. Back brace; 3. Reinforced concrete beam; 4. Upper support plate; 5. Horizontal support rod; 6. Spring; 7. Nut; 8. Lower support plate; 9. Hanging rod; 10. Fastening nut; 11. Slide cylinder; 12. Triangular diagonal brace; 13. Triangular resistance rod; 14. Flexible gasket; 15. Pallet. Detailed Implementation

[0014] To fully understand the purpose, features and effects of the present invention, the present invention will be described in detail through the following specific embodiments, but the present invention is not limited thereto.

[0015] like Figures 1 to 3 As shown, the present invention provides a reusable platform device for construction within multiple shafts, comprising a hook 1, an upper support plate 4, a lifting rod 9, and an adjustable support mechanism. The hook 1 is attached to a reinforced concrete beam 3 at the top of the shaft. Preferably, in cross-section, the hook 1 has a "U"-shaped structure. The two ends of the back rib 2 within the same shaft overlap the outer edges of the hooks 1 on two adjacent reinforced concrete beams, meaning adjacent shafts share one hook 1. Preferably, the horizontal connection of the hook 1 can be made into a telescopic structure, and the vertical connection can also be a telescopic structure to adapt to different widths of the reinforced concrete beams 3 and the construction depth of the shaft platform. To ensure balanced force on both sides of the hook 1, the horizontal connection of the hook 1 can be temporarily anchored to the upper surface of the reinforced concrete beam to prevent the equipment from tipping over.

[0016] Multiple back braces 2 are laid within a shaft, and upper support plates 4 are laid on the back braces 2 at intervals. At least two back braces 2 support the underside of each upper support plate 4. Preferably, the clearance between two adjacent upper support plates 4 is approximately smaller than the width of one upper support plate 4. Two sets of transverse support rods 5, perpendicular to the length of the upper support plate 4, are laid on the upper support plate 4. Each set of transverse support rods 5 consists of two rods spaced apart. A hanger rod 9 is suspended between the two transverse support rods 5 in the same set. The lower end of the hanger rod 9 is connected to an adjustable support mechanism.

[0017] The adjustable support mechanism includes a bracket, a lower support plate 8, and an extension support plate. The bracket is connected to the lower part of the boom 9 and is used to increase the friction and stability between the device and the structural well wall. The lower support plate 8 is connected to the middle of the boom 9, and extension support plates are fixedly connected to both sides of the lower support plate 8. The lower support plate and the extension support plates together form a construction platform inside the well. Preferably, the lower support plate 8 has reinforcing ribs on its lower surface.

[0018] In some preferred embodiments, the outer wall of the hanger rod 9 is threaded, and a spring 6 and a nut 7 are mounted on the top of the hanger rod 9 above the transverse support rod 5. The nut is a locking nut. The spring 6 is fitted onto the hanger rod 9, and the nut 7 is threaded onto the top of the hanger rod 9, so that the upper and lower ends of the spring 6 abut against the nut 7 and the transverse support rod 5 respectively, thereby adjusting the position of the bracket and the lower support plate 8. Preferably, multiple swivel fasteners or U-shaped fasteners that engage with bolts and nuts are used to bind the two transverse support rods 5 together at their ends, middle, and other positions, leaving a gap for the hanger rod 9 to pass through. However, the width of this gap is smaller than the diameter of the spring 6, ensuring that the spring 6 and the nut 7 can be supported on the transverse support rod 5. If the diameter of the nut 7 is insufficient, a ring can be welded to the outer edge of the nut to increase its diameter.

[0019] The lower support plate 8 has a through hole for inserting a hanging rod 9. A fastening nut 10 is threaded onto the hanging rod 9 on the lower side of the lower support plate 8. The outer diameter of the fastening nut 10 is larger than the diameter of the through hole. The upper surface of the fastening nut 10 contacts the lower surface of the lower support plate 8, thus supporting the lower support plate 8.

[0020] A horizontally placed tray 15 is fixedly connected to the lower end of the boom 9, and a horizontally placed rotating shaft is fixed on the tray 15. Figure 2 As shown, the bracket includes a triangular resistance rod 13, a lifting lug, a triangular diagonal rod 12, and a slide cylinder 11. One end of the triangular resistance rod 13 is fixed with a collar, which is fitted onto the pivot of the tray 15, allowing the triangular resistance rod 13 to rotate around the pivot. The other end of the triangular resistance rod 13 is bonded with a flexible gasket 14, which abuts against the structural well wall. A lifting lug is fixed to the middle of the triangular resistance rod 13. One end of the triangular diagonal rod 12 is hinged to the lifting lug, and the other end of the triangular diagonal rod 12 intersects with the outer wall of the slide cylinder 11. The slide cylinder 11 is slidably fitted onto the lower part of the lifting rod 9. The outer wall of the lifting rod in the sliding area of ​​the slide cylinder is not threaded.

[0021] How to use the device: S1. Attach hook 1 to the top surface of reinforced concrete beam 3. Preferably, place a long wooden block at the bent corner of hook 1 as a support to reduce pressure and increase the stability of hook 1. Place longitudinal wooden blocks or rectangular steel pipes as back ribs 2 on the hook inside the shaft.

[0022] S2. Lay a template or light steel plate on the upper part of the back rib 2 as the upper support plate 4, which serves as the working surface for subsequent installation. Each upper support plate 4 is supported by at least two back ribs 2 on its lower side to ensure structural stability.

[0023] S3. The upper section of the boom 9 is threaded and fitted with a slide cylinder 11. The lower end is welded with a tray 15, and a fixed rotating shaft is welded to the outside of the tray 15. One end of the triangular resistance rod 13 is fixed with a collar, which is fitted onto the rotating shaft to ensure that the triangular resistance rod 13, made of steel rod, can rotate circumferentially around the rotating shaft. The other end of the triangular resistance rod 13 is welded with a flexible gasket 14 to increase friction and stability with the structural well wall.

[0024] A lifting lug is welded to the middle of the triangular resistance rod 13. A movable shaft is set on the lifting lug. The movable shaft is fixed to the tail end of the triangular inclined rod 12. One end of the triangular inclined rod 12 is hinged to the triangular resistance rod 13, and the other end of the triangular inclined rod 12 is hinged to the side wall of the slide cylinder 11, ensuring that the triangular inclined rod 12 can rotate around the movable shaft along the triangular resistance rod 13 in one plane.

[0025] After assembling the lower brackets of the two suspension rods 9, the fastening nut 10 is threaded to the middle of the suspension rod 9, and the lower support plate 8 is inserted through the top of the suspension rod 9 and secured to the upper side of the fastening nut 10. Preferably, one suspension rod 9 is installed at each of the four corners of each lower support plate 8, that is, four suspension rods 9 provide support for one lower support plate 8.

[0026] S4. Construction workers stand on the upper support plate 4 and lower the assembled adjustable support mechanism (manually retractable triangular resistance rod 13) and the lifting rod 9 into the shaft below the upper support plate 4 through the reserved space between the two upper support plates 4. During the lowering operation, a temporary fixing rope can be used to wrap around the lower support plate 8 for double protection to prevent the lower support plate 8 from falling off due to accident. Since the length of the lower support plate 8 is similar to that of the shaft, one end needs to be tilted down first, and then the other end needs to be inserted into the shaft to ensure that the lower support plate 8 enters the shaft smoothly.

[0027] As the triangular resistance rod 13 is released, it abuts against the structural well wall. Then, the lifting rod 9 is raised, its upper end passing between the two transverse support rods 5 on the same side. A spring 6 is fitted, and the nut 7 is tightened, allowing the lifting rod 9 to be smoothly suspended on the transverse support rods 5. During the lifting process, the triangular resistance rod 13 does not change position due to the friction of the flexible gasket 14. As the lifting rod is raised, the opening angle of the triangular resistance rod 13 is greater, making the bracket structure more stable. Its principle is similar to that of an umbrella.

[0028] S5. After hoisting the four lifting rods 9, remove the temporary fixing ropes and repeat the above operation to install the second lower support plate using the space reserved on the other upper support plate. After the two lower support plates 8 are installed in place, the construction personnel climb onto the lower support plates 8 and overlap the extension support plates between the two adjacent lower support plates and on the outside of the two lower support plates. Reinforcement is done by welding, or the outer extension support plate is hinged to the lower support plate, and then opened to release. The lower support plates and extension support plates cover the entire shaft cross-section, completing the construction platform setup.

[0029] When disassembly is required after construction is completed, remove the parts in reverse order of installation.

[0030] Compared with conventional construction methods, the construction technology of building a construction platform in multiple adjacent shafts of the present invention has the following advantages: (1) The device is simple to make, sturdy and reliable, and easy to install and dismantle; (2) The upper and lower double-layer structures are implemented simultaneously, the construction speed is fast and the efficiency is high; (3) The amount of machinery and manpower used is small and the cost is low; (4) It is easy to move and can be adjusted according to the beam width, making it flexible to use and effective; (5) It has good integrity and no safety hazards; (6) It has a large coverage area and wide application.

[0031] Finally, it should be noted that the above-listed embodiments are merely preferred embodiments of the present invention. Of course, those skilled in the art can make modifications and variations to the present invention. If such modifications and variations fall within the scope of the claims of the present invention and their equivalents, they should be considered as being within the protection scope of the present invention.

Claims

1. A reusable platform device for construction within multiple shafts, characterized in that, The system includes hooks, an upper support plate, a lifting rod, and an adjustable support mechanism. The hooks are mounted on the reinforced concrete beams at the top of the shaft. Upper support plates are spaced apart between the hooks on adjacent reinforced concrete beams. Cross-shaped support rods are mounted on the upper support plates, and lifting rods are mounted on the cross-shaped support rods. The lower end of the lifting rods is connected to the adjustable support mechanism. The adjustable support mechanism includes a bracket, a lower support plate, and an extension support plate. The bracket is connected to the lower part of the lifting rod and is used to increase the friction and stability between the platform device and the structural shaft wall. The middle of the boom is connected to the lower support plate, and the lower support plate is fixedly connected to the extension support plate, which together form the construction platform inside the shaft. It also includes back ribs, with the lower side of the upper support plate supported by several back ribs; The outer surface of the hanger is threaded, and the upper end of the hanger located above the horizontal support rod is equipped with a spring and a nut. The two ends of the spring abut against the nut and the horizontal support rod respectively, which serves to adjust the position of the bracket and the lower support plate. A tray is fixedly connected to the lower end of the boom, and a rotating shaft is fixed on the tray. The bracket includes a triangular resistance rod, a lifting lug, a triangular diagonal rod, and a sliding cylinder. One end of the triangular resistance rod is provided with a collar, which is fitted onto the rotating shaft of the tray, allowing the triangular resistance rod to rotate around the rotating shaft. The other end of the triangular resistance rod is provided with a flexible pad, which abuts against the structural well wall. A lifting lug is fixed in the middle of the triangular resistance rod. One end of the triangular diagonal rod is hinged to the lifting lug, and the other end of the triangular diagonal rod is hinged to the outer wall of the sliding cylinder. The sliding cylinder is slidably fitted onto the lower part of the boom.

2. The reusable platform device for multi-well construction according to claim 1, characterized in that, The hook has a U-shaped cross-section, with the two ends of the back rib overlapping the outer edge of the hook on the adjacent reinforced concrete beam.

3. The reusable platform device for multi-well construction according to claim 1, characterized in that, The lower support plate has a through hole for inserting a hanging rod. A fastening nut is threaded onto the hanging rod on the lower side of the lower support plate. The outer diameter of the fastening nut is larger than the diameter of the through hole, which serves to support the lower support plate.

4. The construction method of the reusable platform device for multi-well construction as described in any one of claims 1-3, characterized in that, Includes the following steps: S1. Attach the hook to the top surface of the reinforced concrete beam and place a longitudinal back rib on the hook inside the shaft; S2. Lay support plates at intervals on the upper part of the back rib; S3. Install the bracket structure at the bottom of the hanger. Initially, the triangular resistance bar is in the retracted state. Then, install the support plate and use the fastening nuts to support the support plate. S4. Lower the assembled adjustable support mechanism and the boom through the space reserved between the two upper support plates into the shaft below the upper support plate. As the triangular resistance rod is released, the end of the triangular resistance rod abuts against the structural shaft wall. Then, lift the boom so that its upper end passes through the gap of the horizontal support rod. Install a spring on the top of the boom and tighten the nut so that the boom can be smoothly suspended on the horizontal support rod. S5. After the lower support plate is installed in place, the construction workers will climb down onto the lower support plate and attach the extension support plate between the adjacent lower support plates and to the outside of the lower support plate to complete the construction platform setup.

5. The construction method of the reusable platform device for multi-shaft construction according to claim 4, characterized in that, When lowering the lower support plate, temporary fixing ropes are used to wrap the lower support plate for double protection, and a hanging rod is connected to each of the four corners of the lower support plate.

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