An inside operating platform for 90° elbow pipe

Abstract

This invention pertains to an operating platform, specifically an operating platform for the interior of a 90° elbow pipe. The platform comprises a planar support section, a front support section, an adjusting and fixing square tube, and a rear support section. The front support section is located at the front end of the adjusting and fixing square tube and points vertically upwards. The planar support section is located at the free end of the front support section, and the rear support section is located at the rear end of the adjusting and fixing square tube. The significant advantages of this invention are: convenient assembly and disassembly, ease of operation, and reduced impact of confined spaces on operator work; high stability and protection, preventing damage to the pipe's inner wall; compatibility with various large-diameter 90° elbow pipes, broad application range; and facilitates pipe measurement, welding, cleaning, and other tasks, improving work efficiency and quality.

Description

Technical Field

[0001] This invention pertains to operating platforms, specifically an internal operating platform for a 90° elbow pipe. Background Technology

[0002] During the construction of a nuclear power plant, welding work needs to be carried out inside pipes with 90° bends. However, because the inner wall of the pipe is relatively smooth and has a slope, it is difficult for operators to stand stably, and the inner wall of the pipe cannot be damaged during construction. To facilitate construction, a construction platform needs to be erected inside the pipe before construction begins.

[0003] However, the following challenges exist when working inside pipelines with 90° bends: 1. The 90° bend is located in a narrow and restricted operating space, which is not conducive to personnel operation; 2. During construction, the usual solution is to erect scaffolding inside the pipeline to form a platform with a plank structure, but this solution is not only labor-intensive but also damages the inner wall of the pipeline; 3. When connecting the equipment to the 90° bend pipeline, stability inside the pipeline must be ensured, so the stability of the operating platform must be guaranteed; 4. After the pipeline is in place at the construction site, when performing inspections, cleaning, and other operations inside the pipeline, it is necessary to avoid scratching, abrasion, or other damage to the inner wall of the pipeline, so the operating platform must have a certain degree of protection; 5. Due to the narrow and restricted operating space, the personal safety of the operators must be guaranteed. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by providing an internal operating platform for a 90° elbow pipe.

[0005] This invention is implemented as follows: an internal operating platform for a 90° elbow pipe, comprising a planar support part, a front support part, an adjusting and fixing square tube, and a rear support part, wherein the front support part is located at the front end of the adjusting and fixing square tube and is vertically upward, the planar support part is located at the free end of the front support part, and the rear support part is located at the rear end of the adjusting and fixing square tube.

[0006] As described above, the internal operating platform for a 90° elbow pipe includes a planar support component comprising a planar support rod, a support beam, a planar bending support plate, and a nut.

[0007] The supporting beam and the end of the planar support rod are provided with planar bending support plates, and rubber sheets are attached to the outer surface of the bending support plates to increase the friction when in contact with the inside of the pipe, which protects the inner wall of the pipe and improves the stability of the operating platform.

[0008] Nuts are welded to the end connection of the support beam, and the support is connected to the front support part by threaded connection.

[0009] As described above, the internal operating platform for a 90° elbow pipe includes a front support rod, a front bending support plate at the end of the front support rod, and a rubber sheet attached to the outer surface of the front bending support plate to increase the friction when in contact with the inside of the pipe, thereby protecting the inner wall of the pipe and improving the stability of the operating platform.

[0010] It also includes a front support column, which consists of two stainless steel pipes of different diameters, welded to a connecting plate, and has multiple connection holes in the smaller diameter pipe. The support column height can be varied by bolt fastening, and it can be applied to pipes with elbows of various heights.

[0011] Before welding the lower part of the support column, the support plate is bent to allow for bending, thereby increasing the contact area with the inside of the pipe and improving stability.

[0012] The connecting screw is threaded so that the aforementioned planar support portion is connected to the front support portion via a threaded connection.

[0013] As described above, the internal operating platform for a 90° elbow pipe includes an adjusting and fixing square tube comprising an adjusting slider, a baffle, a square tube, and fastening bolts. The square tube moves in the axial direction of the adjusting slider via the adjusting bolts and the baffle to adjust the horizontal distance between the rear support portion and the front support portion, and is fixed by the fastening bolts. This allows the operating platform to be applied to various pipes with different distances between the elbow and the horizontal portion, thus improving its versatility.

[0014] As described above, the internal operating platform for a 90° elbow pipe includes a rear bending support plate, adjusting bolts, a support column, and a fixing block. The upper and lower ends of the support column are provided with rear bending support plates, and rubber sheets are attached to the outside of the bending support to increase the friction when in contact with the inside of the pipe, which protects the inner wall of the pipe and improves the stability of the operating platform.

[0015] A fixing block is welded to the bottom of the support column, which can improve the stability of the connection with the adjustment and fixing square tube;

[0016] The platform is equipped with adjusting bolts, allowing the height of the rear support section to be adjusted via bolt connections, thus enabling the platform to be used for various inner diameter pipes.

[0017] The significant effects of this invention are: (1) This invention is easy to install, disassemble and assemble, and easy to operate, reducing the impact of narrow spaces on the operator's work; (2) This invention has high stability and protection, and will not damage the inner wall of the pipe; (3) This invention can be used in conjunction with various large-diameter 90° elbow pipes for internal operation, and has a wide range of applications; (4) This invention can enable the operator to perform the operation tasks in the curved part of the pipe by laying a plate-shaped structure, which facilitates the measurement, welding, cleaning and other work tasks of the pipe, and improves work efficiency and quality.

[0018] In addition, this application has the following advantages: (1) The design is safe and reliable, the manufacturing is simple, and the cost is low. (2) The adjustment and operation are simple, the stability and protection are high, and the manpower is saved. (3) It can be used with the internal operation of large pipes with various inner diameters at 90° bends, and the application range is wide. (4) By laying the plate-shaped structure, the operator can perform the operation tasks inside the 90° bend of the pipe, which facilitates the measurement, welding, cleaning and other tasks of the pipe, and improves the work efficiency and quality. Attached Figure Description

[0019] Figure 1 Operating platform diagram;

[0020] Figure 2 Schematic diagram of the planar support section;

[0021] Figure 3 Schematic diagram of the front support section;

[0022] Figure 4 : Schematic diagram of adjusting and fixing square tube;

[0023] Figure 5 : Schematic diagram of the rear support section;

[0024] Figure 6 : Schematic diagram of the operation platform.

[0025] In the diagram: 1. Planar support section, 2. Front support section, 3. Adjusting and fixing square tube, 4. Rear support section, 1-1. Planar support rod, 1-2. Support beam, 1-3. Planar bending support plate, 1-4. Nut, 2-1. Front support rod, 2-2. Support column, 2-3. Connecting screw, 2-5, 2-6. Front bending support plate, 2-7. Connecting plate, 3-1. Adjusting slider, 3-2. Baffle, 3-3. Square tube, 3-4. Fastening bolt, 4-1. Rear bending support plate, 4-2. Adjusting bolt, 4-3. Support column, 4-4. Fixing block. Detailed Implementation

[0026] An internal operating platform for a 90° elbow pipe comprises four parts: a planar support section 1, a front support section 2, an adjusting and fixing square tube 3, and a rear support section 4. Figure 1 As shown.

[0027] Further details are as follows:

[0028] Planar support component 1 includes: a planar support rod 1-1, a support beam 1-2, a planar bending support plate 1-3, and a nut 1-4, as shown below. Figure 2 As shown:

[0029] ■The supporting beam 1-2 and the flat support rod 1-1 are provided with flat bending support plates 1-3 at their ends, and rubber sheets are attached to the outer surface of the bending support plates 1-4 to increase the friction when in contact with the inside of the pipe, which protects the inner wall of the pipe and improves the stability of the operating platform.

[0030] ■ Nuts 1-4 are welded to the end connection of the support beam, and the support beam 1-2 is connected to the front support part 3 by threaded connection;

[0031] The front support portion 2 includes: a front support rod 2-1, a support column 2-2, a connecting screw 2-3, bending support plates 2-5 and 2-6, and a connecting plate 2-7, as shown. Figure 3 As shown:

[0032] ■ The front support rod 2-1 is provided with a curved support plate 2-6 at its end, and a rubber sheet is attached to the outer surface of the curved support plate 2-6 to increase the friction when in contact with the inside of the pipe, which protects the inner wall of the pipe and improves the stability of the operating platform.

[0033] ■The front support column 2-2 is composed of two stainless steel pipes with different diameters, which are welded to the connecting plate 2-7. Multiple connecting holes 2-4 are opened in the smaller diameter steel pipe. The height of the support column 2-2 can be changed by bolt fastening, and it can be applied to pipelines with bends of various heights.

[0034] ■ The curved support plate 2-5 welded to the lower part of the support column 2-2 may have a curvature, thereby increasing the contact area with the inside of the pipe and improving stability.

[0035] ■The connecting screw 2-3 is threaded so that the above-mentioned planar support part 2 and the front support part 3 are connected by thread;

[0036] The adjustment of the fixed square tube 3 includes: adjusting slider 3-1, baffle 3-2, square tube 3-3, and fastening bolt 3-4, such as... Figure 4 As shown:

[0037] ■ The square tube 3-3 can be moved in the axial direction of the adjusting slider 3-1 by adjusting the adjusting bolt and the baffle 3-2 to adjust the horizontal distance between the rear support part 4 and the front support part 2, and is fixed by the fastening bolt 3-4, so that the operating platform can be applied to various pipes with different distances between the bend and the horizontal part, thus improving the versatility of the application.

[0038] The rear support section 4 includes: a rear bending support plate 4-1, an adjusting bolt 4-2, a support column 4-3, and a fixing block 4-4, as shown below. Figure 5 As shown:

[0039] ■ The upper and lower ends of the support column 4-3 are provided with rear bending support plates 4-1, and rubber sheets are attached to the outside of the bending support to increase the friction when in contact with the inside of the pipe, which protects the inner wall of the pipe and improves the stability of the operating platform.

[0040] ■ A fixing block 4-4 is welded to the bottom of the support column 4-3, which can improve the stability of the connection with the adjusting and fixing square tube 3;

[0041] ■ With adjusting bolts 4-2, the height of the rear support part 4 can be adjusted via bolt connection, thereby enabling the platform to be applied to pipes of various inner diameters.

[0042] The materials required to construct an internal operating platform for a large 90° pipe bend are shown in the table below.

[0043] Table 5.1 Internal Operating Platform for 90° Elbows in Large Pipelines (Single)

[0044] 1 rubber sheet δ=5mm 0.5㎡ 2 Fully threaded hex bolts M8*80 7 3 Hex nuts M8 7 4 Hex nuts M24 2 4 Stainless steel pipe Φ48 6m 5 Stainless steel sheet δ=10mm 0.3㎡ 6 Stainless steel square tube 50mm 1

[0045] The working process of this utility model is divided into a first working process and a second working process:

[0046] 1) First working process: The staff carries the unassembled operating platform, including the plane support part 1, the front support part 2, the adjustment and fixing square tube 3, and the rear support part 4, into the pipeline;

[0047] a. Secure the support beam 1-2 to the appropriate position by tightening the thread, so that the bending support plate 1-3 is in stable contact with the inner wall of the pipe;

[0048] b. Adjust the height of the front support section 2 using support column 2-2 to achieve a suitable distance from the end face of the elbow;

[0049] c. Adjust the support rods 1-1 and 2-1 to the appropriate positions so that the bending support plate 1-3 is in stable contact with the inner wall of the pipe and is on the same plane as the support beam 1-2, so that the "platform" formed after it contacts the inner wall of the pipe with the support beam 1-2 is parallel to the end face of the bending part. Assemble the front support part 2 and fix it with bolts.

[0050] d. Adjust the horizontal position of square tube 3-3 to the horizontal distance of the front support part 2, and fix it with fastening bolts. Fix the rear support part 4 with fastening bolts so that the curved support plate 4-1 of the rear support part 4 supports the horizontal part of the pipe. Adjust the curved support plate 4-1 by adjusting bolt 4-2 to adjust the height of the rear support part 4 so that it is in stable contact with the inner wall of the pipe. Set up a flat plate on the "platform" formed by support rod 1-1, support rod 2-1 and support beam. At this time, the operation platform is set up.

[0051] 2) Second working process: After the work is completed, remove the flat platform erected in the first working process, loosen the bolts to remove support rod 1-1, and loosen and remove support beam 1-2. Loosen the fixing bolts of the front support part 2 to remove support rod 2-1 from the contact surface, loosen the fastening bolts 3-4 to remove square tube 3-3 from the contact surface, loosen the adjusting bolts 4-2 to remove the rear support part from the contact surface, and finally, the workers carry the disassembled operating platform out of the pipeline. At this point, the working process of the operating platform is complete.

Claims

1. An internal operating platform for a 90° elbow pipe, characterized in that: It includes a planar support part (1), a front support part (2), an adjustment and fixing square tube (3), and a rear support part (4). The front support part (2) is set at the front end of the adjustment and fixing square tube (3) and is vertically upward. The planar support part (1) is set at the free end of the front support part (2), and the rear support part (4) is set at the rear end of the adjustment and fixing square tube (3).

2. The internal operating platform for a 90° elbow pipe as described in claim 1, characterized in that: The planar support part (1) includes a planar support rod (1-1), a support beam (1-2), a planar bending support plate (1-3), and a nut (1-4). The supporting beam (1-2) and the flat supporting rod (1-1) are provided with a flat bending support plate (1-3) at their ends, and a rubber sheet is attached to the outer surface of the flat bending support plate (1-3) to increase the friction when in contact with the inside of the pipe, which protects the inner wall of the pipe and improves the stability of the operating platform. Nuts (1-4) are welded to the end connection of the support beam, and the support beam (1-2) is connected to the front support part (2) by threaded connection.

3. The internal operating platform for a 90° elbow pipe as described in claim 2, characterized in that: The front support part (2) includes a front support rod (2-1), and a front bending support plate (2-6) is provided at the end of the front support rod (2-1). A rubber sheet is attached to the outer surface of the front bending support plate (2-6) to increase the friction when in contact with the inside of the pipe, which protects the inner wall of the pipe and improves the stability of the operating platform. It also includes a front support column (2-2), which consists of two stainless steel pipes of different diameters, welded to the connecting plate (2-7), and multiple connecting holes (2-4) are opened in the smaller diameter pipe. The height of the support column (2-2) can be changed by bolt fastening, and it can be applied to pipes with elbows of various heights. Before welding the support plate (2-5) at the bottom of the support column (2-2), a bend may exist, thereby increasing the contact area with the inside of the pipe and improving stability; The front support part (2) also includes a connecting screw (2-3), which is threaded so that the above-mentioned planar support part (1) and the front support part (2) are connected by a threaded connection.

4. The internal operating platform for a 90° elbow pipe as described in claim 3, characterized in that: The adjustment and fixing square tube (3) includes an adjustment slider (3-1), a baffle (3-2), a square tube (3-3), and a fastening bolt (3-4). The square tube (3-3) moves in the axial direction of the adjustment slider (3-1) through the adjustment bolt and the baffle (3-2) to adjust the horizontal distance between the rear support part (4) and the front support part (2), and is fixed by the fastening bolt (3-4). This allows the operating platform to be applied to various pipes with different distances between bends and horizontal sections, thus improving the applicability.

5. The internal operating platform for a 90° elbow pipe as described in claim 4, characterized in that: The rear support part (4) includes a rear bending support plate (4-1), an adjusting bolt (4-2), a support column (4-3), and a fixing block (4-4). The support column (4-3) is provided with rear bending support plates (4-1) at both the upper and lower ends, and rubber sheets are glued to the outside of the bending support to increase the friction when in contact with the inside of the pipe, which protects the inner wall of the pipe and improves the stability of the operating platform. The bottom of the support column (4-3) is welded with a fixing block (4-4), which can improve the stability of the connection with the adjustment and fixing square tube (3); The platform is equipped with adjusting bolts (4-2), which allows the height of the rear support part (4) to be adjusted by bolt connection, thereby enabling the platform to be applied to pipes of various inner diameters.

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