Correcting device suitable for underwater rapid butt joint of flanges

Abstract

The utility model relates to the field of ocean engineering flange underwater butt joint, in particular to a correcting device suitable for flange underwater rapid butt joint, which comprises a first flange, a second flange is attached to the bottom of the first flange, a butt joint correcting device is arranged on one side of the first flange, and a hole aligning screw is vertically screwed on the upper portion of the butt joint correcting device. A hole aligning screw rod can smoothly penetrate through the first flange and the second flange, a first flange edge fixing bolt can be conveniently attached and fixed to the first flange, and a plurality of second flange adjusting bolts arranged on the lower portion can be selected at different positions according to different thicknesses of the flanges. And the second flange bolt holes are corrected, finely adjusted and fixed through the tightening bolts, and flange butt joint is preliminarily completed. Mounting and tightening are sequentially conducted through other diagonal bolt holes, then the correcting device is dismantled, bolts are supplemented for fixing and tightening, and underwater butt joint mounting of the flanges is completed. The correcting device is convenient to operate, an operator can conveniently and rapidly butt two flanges underwater, and connection is fixed and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of underwater butt joint of marine engineering flanges, in particular to a correction device suitable for underwater rapid butt joint of flanges. Background Art

[0002] In the process of marine engineering operations, flange is a very common part. The existing flange connection is to fix two pipes, pipe fittings or equipment on a flange plate respectively, and then fasten the two flange plates together with bolts to complete the connection. However, when flange connection is performed in an underwater environment, due to the influence of the operating environment and the difference in underwater visibility, there is often a small gap between the docking holes of the two flanges, which causes the docking adjustment to take a lot of time, and it is impossible to achieve efficient and fast underwater flange docking. Summary of the invention

[0003] The utility model aims to solve the shortcomings in the prior art and proposes a correction device suitable for underwater rapid docking of flanges.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A correction device suitable for underwater rapid docking of flanges comprises a first flange, a second flange is attached to the bottom of the first flange, a docking correction device is arranged on one side of the first flange, a pair of hole screws are vertically screwed on the upper part of the docking correction device, the pair of hole screws pass through the bolt holes corresponding to the first flange and the second flange, a first flange edge fixing bolt is screwed laterally in the middle part of the docking correction device, and a plurality of second flange adjusting bolts are screwed laterally below the first flange edge fixing bolts.

[0006] In addition, the preferred structure is that a matching screw is vertically screwed onto the upper portion of the docking correction device, a first flange edge fixing bolt is horizontally screwed onto the middle portion of the docking correction device, and a second flange adjusting bolt is horizontally screwed onto the lower portion of the docking correction device.

[0007] In addition, a preferred structure is that an annular button cap is provided at the top end of the rod body of the hole screw, the diameter of the threaded portion of the hole screw is smaller than the bolt hole diameter of the first flange and the second flange, and the hole screw can pass through the bolt holes of the first flange and the second flange.

[0008] In addition, a preferred structure is that a pressing block is provided at one end of the first flange edge fixing bolt close to the first flange, and the pressing block can be tightly fixed on the side wall of the first flange.

[0009] In addition, a preferred structure is that the hole-matching screw, the first flange edge fixing bolt, the second flange adjusting bolt, and the docking correction device are all made of a high-strength stainless steel material.

[0010] The beneficial effects of the utility model are as follows: the set hole screw can smoothly penetrate the first and second flanges, the first flange edge fixing bolts are convenient for pressing the first flange, and the multiple second flange adjustment bolts set below can select the second flange adjustment bolts at different positions according to the different flange thicknesses, and the second flange bolt holes are corrected and fine-tuned by tightening the bolts to preliminarily complete the flange docking. The remaining diagonal bolt holes are installed and tightened in sequence, and then the correction device is removed and the bolts are fixed and tightened to complete the underwater flange docking installation. This correction device is simple and convenient to operate, and it is more convenient for operators to quickly dock the two flanges underwater, and the connection and fixation are reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A schematic diagram of the structure for correcting the locking state of the device;

[0012] Figure 2 A schematic diagram of the structure of the correction device;

[0013] Figure 3 It is a schematic diagram of the structure after the first flange and the second flange are connected.

[0014] In the figure: 1, matching screw; 11, button cap; 2, first flange edge fixing bolt; 21, pressure block; 3, second flange adjusting bolt; 4, first flange; 5, second flange; 6, docking correction device. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0016] Reference Figure 1-3 A correction device suitable for underwater rapid docking of flanges includes a first flange 4, a second flange 5 is attached to the bottom of the first flange 4, a docking correction device 6 is arranged on one side of the first flange 4, a hole-matching screw 1 is vertically screwed on the upper part of the docking correction device 6, the hole-matching screw 1 passes through the bolt holes corresponding to the first flange 4 and the second flange 5, a first flange edge fixing bolt 2 is screwed horizontally in the middle part of the docking correction device 6, and a plurality of second flange adjusting bolts 3 are screwed horizontally below the first flange edge fixing bolt 2.

[0017] Among them, a hole screw 1 is vertically screwed on the upper part of the docking correction device 6, a first flange edge fixing bolt 2 is horizontally screwed on the middle part of the docking correction device 6, and a second flange adjustment bolt 3 is horizontally screwed on the lower part of the docking correction device 6. Through the bolt holes on the docking correction device 6, the hole screw 1, the first flange edge fixing bolt 2, and the second flange adjustment bolt 3 can be rotated on the docking correction device.

[0018] In addition, an annular button cap 11 is provided at the top end of the rod body of the hole screw 1. The diameter of the threaded portion of the hole screw 1 is smaller than the bolt hole diameter of the first flange 4 and the second flange 5, and the hole screw 1 can pass through the bolt holes of the first flange 4 and the second flange 5. The hole screw 1 can effectively pass through the bolt holes of the first flange and the second flange 5, so that the two flanges can be basically at the same center. The annular button cap 11 is convenient for rotation adjustment and can be used to tie a safety rope to prevent it from falling off during underwater operations.

[0019] Moreover, a pressing block 21 is provided at one end of the first flange edge fixing bolt 2 close to the first flange 4. The pressing block 21 can be tightly fixed on the side wall of the first flange 4. The pressing block 21 can press the first flange 4 to make it more firm.

[0020] At the same time, the hole screw 1, the first flange edge fixing bolt 2, the second flange adjusting bolt 3, and the docking correction device 6 are all made of a high-strength stainless steel material, which has certain strength and corrosion resistance and is suitable for marine underwater working environment.

[0021] In this embodiment, first, the diameter of the matching hole screw 1 is selected according to the hole diameter and thickness of the docking flange, and the diameter of the lower end screw is adjusted to be slightly smaller than the diameter of the flange bolt hole. The length of the lower end of the screw is about 1.5 times the thickness of the single-piece flange. The matching hole screw 1 on the docking correction device 6 is rotated to connect the relative bolt holes of the first flange 4 and the second flange 5 so that the first flange 4 and the second flange 5 can be aligned.

[0022] Then, the first flange edge fixing bolts 2 on the docking correction device 6 are rotated, and the end pressing block 21 is tightly fixed to the edge of the first flange 4 by tightening the bolts.

[0023] Then rotate the second flange adjusting bolt 3 of the docking correction device 6. The second flange adjusting bolt 3 is selected at different positions according to the different flange thicknesses. The second flange 5 is corrected and fine-tuned and fixed by tightening the bolts to preliminarily complete the flange docking.

[0024] Then install and tighten through the remaining diagonal bolt holes, then remove the adjusting device and add bolts to tighten and complete the flange underwater docking installation.

[0025] Among them, if the remaining flange screw holes need to be corrected, select a corresponding screw hole at the three, nine, or twelve points of the flange correction device according to the actual situation and then install a correction device to adjust until all bolts can be installed.

[0026] In the utility model, when the first flange 4 and the second flange 5 are butt-jointed and installed underwater, the hole-matching screw 1 can effectively penetrate the first flange 4 and the second flange 5 (Note: the hole-matching screw has been adjusted in advance according to the thickness of the flange. The length of the lower screw is "about 1.5 times the thickness of the single-piece flange". As long as it can penetrate the upper and lower flange screw holes, the purpose of preliminary alignment can be achieved.) to ensure that the first flange 4 and the second flange 5 are basically at the same center.

[0027] Then set the first flange edge fixing bolt 2, and cooperate with the pressure block 21 to press on the edge of the first flange 4, and then select the second flange adjustment bolt 3 at different positions according to the different flange thicknesses. The second flange can be fine-tuned by tightening the bolts until the flange bolts can smoothly dock the first and second flanges, and then install and tighten through the remaining diagonal bolt holes in turn, and then remove the correction device to fix and tighten the bolts to complete the flange underwater docking installation. If the remaining flange holes need to be corrected, select a screw hole at the three, nine, and twelve points of the flange correction device according to the actual situation, and then install an adjustment correction device to adjust until all bolts can be installed and tightened. It is simple and convenient to operate, and the connection and fixation are reliable, which is suitable for promotion and use.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A correction device for underwater rapid docking of flanges, comprising a first flange (4), characterized in that: A second flange (5) is attached to the bottom of the first flange (4), and a docking correction device (6) is arranged on one side of the first flange (4). A hole-matching screw (1) is vertically screwed on the upper part of the docking correction device (6), and the hole-matching screw (1) passes through the bolt holes corresponding to the first flange (4) and the second flange (5). A first flange edge fixing bolt (2) is screwed horizontally in the middle of the docking correction device (6), and a plurality of second flange adjustment bolts (3) are screwed horizontally below the first flange edge fixing bolt (2).

2. A correction device suitable for underwater rapid docking of flanges according to claim 1, characterized in that: The upper portion of the docking correction device (6) is vertically screwed with a hole screw (1), the middle portion of the docking correction device (6) is horizontally screwed with a first flange edge fixing bolt (2), and the lower portion of the docking correction device (6) is horizontally screwed with a second flange adjustment bolt (3).

3. A correction device suitable for underwater rapid docking of flanges according to claim 2, characterized in that: The top end of the rod body of the hole-matching screw rod (1) is provided with an annular button cap (11); the threaded portion of the hole-matching screw rod (1) has a diameter smaller than the bolt hole diameters of the first flange (4) and the second flange (5), and can pass through the bolt holes of the first flange (4) and the second flange (5).

4. A correction device suitable for underwater rapid docking of flanges according to claim 2, characterized in that: A pressing block (21) is provided at one end of the first flange edge fixing bolt (2) close to the first flange (4), and the pressing block (21) can be tightly fixed on the side wall of the first flange (4).

5. The correction device for underwater rapid docking of flanges according to claim 2 is characterized in that: The hole-matching screw rod (1), the first flange edge fixing bolt (2), the second flange adjusting bolt (3), and the docking correction device (6) are all made of a high-strength stainless steel material.

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