Tower chimney construction combined platform

Abstract

The utility model relates to a towering chimney construction combined platform which comprises an annular platform body, the platform body is formed by assembling a plurality of platform units distributed in the annular direction, each platform unit comprises an upper-layer platform and a lower-layer platform, and the upper-layer platform and the lower-layer platform are connected through a connecting truss. First pin shaft seats are arranged on the edges, distributed in the radial direction of the platform body, of one sides of the upper-layer platform and the lower-layer platform, and second pin shaft seats matched with the first pin shaft seats are arranged on the edges, distributed in the radial direction of the platform body, of the other sides of the upper-layer platform and the lower-layer platform. Wherein the first pin shaft seat of one platform unit is inserted into the slot of the second pin shaft seat of the other platform unit, and a pin shaft penetrates through the space between the first pin shaft seat and the second pin shaft seat, so that the connection between two adjacent platform units is realized, the combined platform is convenient to assemble, and the potential safety hazard of constructors is reduced.

Description

Technical Field

[0001] This utility model relates to the field of chimney construction technology, specifically to a combined platform for the construction of tall chimneys. Background Technology

[0002] The statements herein provide only background information related to this invention and do not necessarily constitute prior art.

[0003] Power plant chimneys are typically tall structures, ranging from 120 to 200 meters in height. They are thin-walled conical structures with a diameter that gradually decreases from approximately 20 meters to 6-8 meters. The outer wall of the chimney is made of reinforced concrete, while the inner wall is constructed from a steel inner cylinder. The construction of the steel inner cylinder includes lifting the inner cylinder, installing a steel platform and spiral ladder, and performing anti-corrosion and insulation work. The traditional method for constructing the steel inner cylinder involves assembling and welding prefabricated steel sections on the ground. A hydraulic lifting device or hoisting mechanism is used to raise and lower the construction platform, lifting the steel cylinder to the top for circumferential welding, completing the installation from top to bottom. This construction process is lengthy and involves significant work at height, requiring the use of a construction platform during installation. However, the pre-drilled holes at the bottom of the chimney are not large enough to accommodate the entire construction platform. Therefore, traditionally, the construction platform is transported in parts to the construction site and then welded together by workers directly below the center of the chimney. The platform assembly process is time-consuming, requires a high level of technical skill from the construction workers, and the workers need to work at heights for extended periods, which poses certain safety hazards. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a tall chimney construction assembly platform that does not require welding during assembly, is easy to assemble, takes less time, and reduces the construction safety hazards for construction personnel.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An embodiment of this utility model provides a construction platform for tall chimneys, including a ring-shaped platform body. The platform body is assembled from multiple platform units distributed along the ring direction. Each platform unit includes an upper platform and a lower platform, which are connected by a connecting truss. A first pin seat is provided on one side of the upper and lower platforms along the radially distributed edge of the platform body, and a second pin seat matching the first pin seat is provided on the other side along the radially distributed edge of the platform body. In adjacent platform units, the first pin seat of one platform unit is inserted into the slot of the second pin seat of another platform unit, and a pin passes through the first and second pin seats to achieve the connection between the two adjacent platform units.

[0007] Optionally, the upper platform and the lower platform are provided with a first pin seat at both ends of the edge distributed radially along the platform body on one side, and a second pin seat at both ends of the edge distributed radially along the platform body on the other side.

[0008] Optionally, a joint plate is rotatably connected to one side of the upper platform along the radially distributed edge of the platform body.

[0009] Optionally, one end of the joint plate is rotatably connected to the edge of the upper platform, and the other end is used to overlap the upper surface of the adjacent upper platform;

[0010] or;

[0011] One end of the joint plate is rotatably connected to the edge of the upper platform, and the other end is fixedly connected to the edge of the adjacent upper platform by bolts.

[0012] Optionally, both the upper and lower platforms adopt a trapezoidal frame structure, with a support plate laid on the upper surface of the frame structure.

[0013] Optionally, the frame structure includes a first radial beam and a second radial beam arranged radially along the platform body, and a plurality of tangential beams arranged tangentially along the circumference of the platform body are provided between the first radial beam and the second radial beam.

[0014] Optionally, the outer edge of the upper platform is provided with an arc-shaped guide rail. The arc-shaped guide rail is detachably and fixedly connected to the platform unit through a connecting component. The arc-shaped guide rails of all platform units form a circular welding station ring rail.

[0015] Optionally, the connecting assembly includes at least one cantilever rod, one end of which is detachably and fixedly connected to the bottom surface of the arc-shaped guide rail via a first fastener, and the other end of which is detachably and fixedly connected to the top of the connecting truss between the upper and lower platforms via a second fastener.

[0016] Optionally, the outer edge of the upper platform is also provided with multiple railings, and the adjacent railings are connected by detachable steel wire ropes.

[0017] Optionally, the railing passes through the upper platform via through holes set on the inner and outer edges of the upper platform and is slidably connected to the upper platform. The upper platform is provided with an upper limit seat, which has an opening that matches the top hanging ring and bottom connecting hole of the railing. A kick plate is fixed to the outer side of the upper limit seat on the outer edge of the upper platform, and a kick plate is fixed to the inner side of the upper limit seat on the inner edge. A lower limit plate is provided at the bottom of the railing.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. The construction assembly platform of this utility model is assembled from multiple platform units. Adjacent platform units are connected by a first pin seat, a second pin seat, and a pin. The platform units can be prefabricated in the factory. During on-site assembly, it is only necessary to hoist the platform unit into place and pass the pin through the first and second pin seats. The entire assembly process does not require welding, which greatly reduces the assembly time, thereby reducing the time that construction workers spend working at height and reducing the construction safety hazards for construction workers.

[0020] 2. The construction assembly platform of this utility model is composed of multiple platform units assembled by pins. Compared with the welding method, it can ensure the connection strength between adjacent platform units and reduce the technical skill requirements of construction personnel.

[0021] 3. The construction assembly platform of this utility model has a sliding connection between the railing and the upper platform. When the platform is not in use, the pin between the bottom connecting hole of the railing and the upper limit seat opening can be removed, allowing the railing to slide downward and retract under the upper platform. This does not occupy the space above the upper platform, reduces the overall size of the platform unit, and facilitates transportation and storage. Attached Figure Description

[0022] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute a limitation thereof.

[0023] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model. Figure 2 ;

[0025] Figure 3 This is a schematic diagram of the platform unit structure of Embodiment 1 of this utility model;

[0026] Figure 4 This is a schematic diagram of the assembly of the platform unit, the arc-shaped guide rail, and the joint plate in Embodiment 1 of this utility model;

[0027] Figure 5 This is a schematic diagram of the connecting component structure in Embodiment 1 of this utility model;

[0028] Figure 6 This is a schematic diagram of the railing in use according to Embodiment 1 of this utility model;

[0029] Figure 7 This is a schematic diagram of the railing in an unused state according to Embodiment 1 of this utility model;

[0030] Figure 8This is a schematic diagram of the railing structure in Embodiment 1 of this utility model;

[0031] Among them, 1. Platform unit, 2. Joint plate, 3. Welding station ring rail, 4. Guardrail, 5. Connecting component, 6. Pin shaft, 7. Electrical control cabinet, 8. Toolbox, 9. Gas cylinder holder, 10. Wire rope, 11. Upper limit seat, 12. Kick plate;

[0032] 101. First radial beam, 102. Second radial beam, 103. Tangential beam, 104. Vertical beam, 105. Diagonal brace, 106. First pin seat, 107. Second pin seat, 108. Connecting vertical beam;

[0033] 301. Curved guide rail;

[0034] 401. Rope threading hole; 402. Lifting ring; 403. Connecting hole; 404. Lower limit seat;

[0035] 501. Cantilever rod, 502. First fastener, 503. Second fastener, 504. Fixing plate. Detailed Implementation

[0036] Example 1

[0037] This embodiment provides a combined platform for the construction of tall chimneys, such as... Figures 1-2 As shown, the platform includes a ring-shaped platform body, which is assembled from multiple platform units 1 distributed along the ring direction. The platform unit 1 adopts a trapezoidal structure, including an upper platform and a lower platform. A connecting truss is provided between the upper platform and the lower platform to connect the upper platform and the lower platform into a whole. The upper platform serves as a construction platform for construction personnel, and the lower platform is used to place construction tools, such as electrical control cabinets and welding toolboxes. Adjacent platform units are connected by pins, so that all platform units together form a ring-shaped platform body.

[0038] All platform units have the same structure. We will take one of the platform units as an example for explanation:

[0039] like Figure 3 As shown, the platform unit 1 adopts an isosceles trapezoidal structure, including an upper platform and a lower platform. Both the upper and lower platforms adopt a horizontally arranged frame structure. The frame structure is an isosceles trapezoidal structure, including a first radial beam 101 and a second radial beam 102. The first radial beam 101 and the second radial beam 102 are both arranged radially along the platform body. A plurality of parallel tangential beams 103 are provided between the first radial beam 101 and the second radial beam 102. The plurality of tangential beams 103 are arranged radially along the platform body.

[0040] The upper surface of the frame structure is covered with support plates. The support plates are made of grating plates, steel perforated plates, or patterned steel plates, etc. Those skilled in the art can set them according to actual needs, which will not be described in detail here. Using grating plates, perforated plates, or patterned steel plates reduces the weight of the platform and saves construction costs.

[0041] Preferably, the first radial beam 101, the second radial beam 102, and the tangential beam 103 are made of square steel. It is understood that the first radial beam 101, the second radial beam 102, and the tangential beam 103 can also be made of other profiles such as round steel, angle steel, or channel steel. Those skilled in the art can choose according to actual needs.

[0042] The upper platform and the lower platform are connected by a connecting truss. The connecting truss includes a vertical beam 104 disposed between the corners of the upper platform and the lower platform. A diagonal brace 105 is provided between the first radial beam 101 of the upper platform and the lower platform, and a diagonal brace 105 is provided between the second radial beam 102. Preferably, the vertical beam 104 and the diagonal brace 105 are made of square steel. It is understood that the vertical beam 104 and the diagonal brace 105 can also be made of angle steel or channel steel or other profiles. Those skilled in the art can set them according to actual needs.

[0043] Furthermore, in the lower platform, the innermost tangential beam 103 has two lifting lugs on its inner side, and the outermost tangential beam 103 has three lifting lugs on its outer side.

[0044] In the upper and lower platforms, the first radial beam 101 is provided with a first pin seat 106, and the second radial beam 102 is provided with a second pin seat 107 that matches the first pin seat 106. In two adjacent platform units 1, the first pin seat 106 of one platform unit 1 is inserted into the slot of the second pin seat 107 of the other platform unit 1. The first pin seat 106 and the second pin seat 107 pass through the pin 6, realizing the connection between the two adjacent platform units 1.

[0045] In this embodiment, the two ends of the first radial beam 101 of the upper platform and the lower platform are provided with first pin seats 106, and the two ends of the second radial beam 102 of the upper platform and the lower platform are provided with second pin seats 107 that match the first pin seats 103.

[0046] like Figure 4 As shown, for the upper platform, its second radial beam 102 is rotatably connected to a joint plate 2 via a hinge. One side of the joint plate 2 is rotatably connected to the second radial beam 102, and the other side can overlap the upper surface of the first radial beam 101 of the upper platform of the adjacent platform unit 1. The joint plate 2 covers the gap between the adjacent platform units 1, which can meet the joint requirements of gaps with a width between 100-300mm.

[0047] In another embodiment, one side of the joint plate 2 is rotatably connected to the second radial beam 102 via a hinge, and the other side is provided with an elliptical hole, which can be fixedly connected to the first radial beam 101 of the adjacent upper platform through the elliptical hole, the fixing hole provided on the first radial beam 101 of the adjacent upper platform, and the countersunk bolt.

[0048] An arc-shaped guide rail 301 is provided on the outer side of the outer edge of the upper platform. Preferably, the arc-shaped guide rail 301 is made of bent channel steel. The arc-shaped guide rail 301 is detachably and fixedly connected to the platform unit 1 through the connecting component 5. After all the platform units 1 are assembled through the pin 6, all the arc-shaped guide rails 301 can form a circular welding station ring rail 3.

[0049] like Figure 5 As shown, the connecting assembly 5 includes at least two cantilever rods 501. In this embodiment, the connecting assembly is provided with two cantilever rods 501. One end of the cantilever rod 501 is fixed to the bottom surface of the arc-shaped guide rail 301 by a first fastener 502. In this embodiment, the first fastener 502 adopts a U-shaped structure, including a first fastening part and a second fastening part provided at both ends of the first fastening part. The cantilever rod 501 passes through the space between the two second fastening parts and the first fastening part. The end of the second fastening part is provided with a flange, and the flange is fixedly connected to the fixing plate provided on the bottom surface of the arc-shaped guide rail 301 by bolts.

[0050] The other end of the cantilever rod 501 is detachably and fixedly connected to the top of the connecting truss via a second fastener 503.

[0051] In this embodiment, the structure of the second fastener 503 is the same as that of the first fastener 502, and will not be described again here. The second fastener 503 and the first fastener 502 are perpendicular to each other. The second fastener 503 is fixedly connected to the fixing plate 504 provided on the side of the connecting vertical beam 108 in the connecting truss by bolts. The connecting vertical beam 108 is provided between the outermost tangential beams of the upper platform and the lower platform.

[0052] The welding station ring rail 3 is used in conjunction with the semi-automatic welding trolley to perform circumferential welds between the inner cylinders of the chimney.

[0053] In this embodiment, the arc-shaped guide rail 301 is detachably and fixedly connected to the top of the connecting truss through the connecting component 5. When the platform is not in use, the arc-shaped guide rail 301 can be removed to reduce the size of the entire platform unit 1 and facilitate assembly and transportation.

[0054] like Figures 6-8As shown, the innermost and outermost tangential beams of the upper platform are each connected to multiple railings 4, and steel wire ropes 10 are detachably connected between the multiple railings 4. The steel wire ropes 10 are used as safety ropes.

[0055] Specifically, the railing 4 is provided with multiple rope holes 401 along the axial direction, and the wire rope 10 passes through the multiple railing 4 through the rope holes to achieve a detachable connection with the railing 4.

[0056] The outermost and innermost tangential beams of the upper platform are provided with through holes with vertically oriented axes. The railing 4 passes through the through holes and slides through the tangential beams.

[0057] The top of the railing 4 is provided with a hanging ring 402, and the bottom is provided with a connecting hole 403. Below the connecting hole is a lower limit seat 404 fixed to the bottom of the railing 4. In this embodiment, the lower limit seat 404 is a circular plate.

[0058] The upper surfaces of the outermost and innermost tangential beams are provided with upper limit seats 11. The upper limit seats 11 are upper limit plates, which are fixedly connected to the tangential beams. The upper limit seats 11 are provided with openings that match the lifting ring 402 and the connecting holes.

[0059] When the platform is not in use, the lifting ring engages with the connecting hole on the upper limit seat 11. A pin is inserted into the lifting ring and the connecting hole to prevent the railing 4 from falling. At this time, the railing 4 is located below the upper platform and does not occupy the space above the upper platform, thus reducing the overall size of the platform unit and facilitating transportation and storage.

[0060] When the platform is in use, the railing 4 is lifted up so that the lower limit seat 404 contacts the bottom surface of the tangential beam, and the connecting hole is aligned with the opening on the upper limit seat 11. A pin is inserted into the connecting hole and the opening to fix the railing posture.

[0061] Furthermore, a kick plate 12 is provided on the outer side of the upper limit seat at the outer edge of the upper platform. The kick plate 12 is fixed to the upper surface of the outermost tangential beam and the outer end of the upper limit seat, restricting the outward rotation of the railing.

[0062] The upper edge of the upper platform is provided with a kick plate 12 on the inner side of the upper limit seat. The kick plate 12 is fixed to the upper surface of the innermost tangential beam and the inner end of the upper limit seat, which restricts the railing 4 from rotating inward, ensuring the safety of construction workers and preventing them from falling from the upper platform.

[0063] After the railing is lifted, the steel wire rope 10 is passed through the rope holes and lifting rings of the multiple railings 4, and then the two movable ends of the steel wire rope are tied and fixed, thus completing the connection between the steel wire rope and the railing 4. After the platform is used, the steel wire rope is removed, and the pins passing through the connection holes and openings are taken out. At this time, the railing 4 is lowered to the bottom of the upper platform, reducing the external size of the platform unit and facilitating transportation and storage.

[0064] In this embodiment, the support plate laid on the lower platform is provided with fixing holes for fixing construction tools with bolts. The construction tools include an electrical control cabinet 7, a toolbox 8, a gas cylinder holder 9, a welding machine, etc. The construction tools are fixed to the lower platform with bolts. Other construction tools, such as lifting tools, trolleys, and stools, can be placed on the lower platform. The construction tools are distributed in a circumferential manner on the lower platform in a set pattern to ensure the stability of the center of gravity when the platform is lifted, which has a high degree of safety. The distribution pattern of the construction tools can be set according to actual needs and will not be described in detail here.

[0065] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A combined construction platform for tall chimneys, characterized in that, The system includes a ring-shaped platform body, which is assembled from multiple platform units distributed along the ring direction. Each platform unit includes an upper platform and a lower platform, which are connected by a connecting truss. Each upper and lower platform has a first pin seat on one side of its radially distributed edge and a second pin seat that matches the first pin seat on the other side of its radially distributed edge. In adjacent platform units, the first pin seat of one platform unit is inserted into the slot of the second pin seat of another platform unit, and a pin passes between the first and second pin seats to achieve the connection between the two adjacent platform units.

2. The combined construction platform for tall chimneys as described in claim 1, characterized in that, The upper and lower platforms are provided with first pin seats at both ends of the edge distributed radially along the platform body on one side, and second pin seats at both ends of the edge distributed radially along the platform body on the other side.

3. The combined construction platform for tall chimneys as described in claim 1, characterized in that, A joint plate is rotatably connected to one side of the upper platform along the radially distributed edge of the platform body.

4. The combined construction platform for tall chimneys as described in claim 3, characterized in that, One end of the joint plate is rotatably connected to the edge of the upper platform, and the other end is used to overlap the upper surface of the adjacent upper platform. or; One end of the joint plate is rotatably connected to the edge of the upper platform, and the other end is fixedly connected to the edge of the adjacent upper platform by bolts.

5. The combined construction platform for tall chimneys as described in claim 1, characterized in that, Both the upper and lower platforms adopt a trapezoidal frame structure, with support plates laid on the upper surface of the frame structure.

6. The combined construction platform for tall chimneys as described in claim 5, characterized in that, The frame structure includes a first radial beam and a second radial beam arranged radially along the platform body, and a plurality of tangential beams arranged tangentially along the circumference of the platform body are provided between the first radial beam and the second radial beam.

7. The combined construction platform for tall chimneys as described in claim 1, characterized in that, The outer edge of the upper platform is provided with an arc-shaped guide rail. The arc-shaped guide rail is detachably and fixedly connected to the platform unit through a connecting component. The arc-shaped guide rails of all platform units form a circular welding station ring rail.

8. The combined construction platform for tall chimneys as described in claim 7, characterized in that, The connecting assembly includes at least one cantilever rod. One end of the cantilever rod is detachably and fixedly connected to the bottom surface of the arc-shaped guide rail via a first fastener, and the other end of the cantilever rod is detachably and fixedly connected to the top of the connecting truss between the upper platform and the lower platform via a second fastener.

9. The combined construction platform for tall chimneys as described in claim 1, characterized in that, The outer edge of the upper platform is also equipped with multiple railings, and the adjacent railings are connected by detachable steel wire ropes.

10. The combined construction platform for tall chimneys as described in claim 9, characterized in that, The railing passes through the upper platform via through holes set on the inner and outer edges of the upper platform and is slidably connected to the upper platform. The upper platform is provided with an upper limit seat, which has an opening that matches the top hanging ring and bottom connecting hole of the railing. A kick plate is fixed to the outer side of the upper limit seat on the outer edge of the upper platform, and a kick plate is fixed to the inner side of the upper limit seat on the inner edge. A lower limit plate is provided at the bottom of the railing.

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