Pipeline flange hole correcting tool

Abstract

The utility model provides a pipeline flange hole correcting tool. The pipeline flange hole correcting tool comprises a clamping device, a sliding device, an adjusting rod, a correcting rod and a positioning rod, one end of the clamping device is connected with the positioning rod, the sliding device is connected with the other end of the clamping device in a sliding mode in the direction of the positioning rod, the adjusting rod is connected with the correcting rod, and the correcting rod is connected with the positioning rod. The adjusting rod is vertically installed on the sliding device, and the adjusting rod is adjusted up and down so that the axis of the correcting rod can be aligned with the axis of the positioning rod. The positioning rod is inserted into the hole in one flange plate, the correcting rod on the adjusting rod is inserted into the hole in the other flange plate, and the axial lead of the correcting rod is aligned with the axial lead of the positioning rod by adjusting the height position of the adjusting rod, so that alignment of the holes in the two flange plates is achieved, supporting of a fulcrum is not needed, and the production efficiency is improved. Prying force does not need to be applied, safety is higher, and labor is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline installation, in particular to a pipeline flange eyelet correction tool. Background Art

[0002] At present, pipeline transportation is widely used in manufacturing industries such as chemical smelting. The connection between pipelines is achieved through flanges set at the ends of the pipelines. The flanges are circumferentially provided with multiple holes. The multiple holes on the flange of one pipeline are aligned one by one with the multiple holes on the other flange and then fixed by bolts.

[0003] If the pipeline needs to be inspected, the flange will be removed and reinstalled after the inspection is completed. During the reinstallation process, the misaligned holes of the flanges on the two pipes need to be aligned before installing the bolts (generally align one of them first, install the bolts, then align the other diagonal one, install the bolts, until all the holes are aligned and the bolts are installed, and finally tighten all the bolts). The most common way to align the misaligned holes is to use a crowbar or other long-rod tools to pry the two flanges together. This method has the following problems: (i) Prying requires finding a suitable fulcrum and outputting sufficient force. For example, if the pipeline exceeds DN300, it is very difficult to manually correct the misaligned holes; (ii) The tool is easy to loosen due to the lack of fixed conditions, which poses a safety hazard of the tool falling out of the hand and injuring people. At the same time, the person operating the pry bar is prone to finger squeezing or crushing. Utility Model Content

[0004] The utility model aims to provide a pipe flange eyelet correction tool, which can correct the misaligned eyelet without using a prying method, thereby improving safety.

[0005] The technical solution of the utility model is: a pipe flange hole correction tool, including a clamping device, a sliding device, an adjusting rod, a correction rod and a positioning rod, one end of the clamping device is connected to the positioning rod, the sliding device is slidably connected in the direction of the positioning rod at the other end of the clamping device, the adjusting rod is connected to the correction rod, the adjusting rod is vertically installed on the sliding device, and the adjusting rod is adjusted up and down to align the axis center line of the correction rod with the axis center line of the positioning rod.

[0006] Preferably, the clamping device includes a first plate and two second plates connected to the same side of the first plate at intervals, a slide groove is formed between the two second plates, the end of the slide groove away from the first plate is open, the sliding device is slidably arranged on the second plate, the adjusting rod is inserted into the slide groove, and the positioning rod is connected to the first plate.

[0007] Preferably, the sliding device includes a third plate and two fourth plates spaced apart and connected to the lower end of the third plate, the adjusting rod is vertically mounted on the third plate, and the third plate and the fourth plate are slidably mounted on the clamping device.

[0008] Preferably, the adjusting rod comprises a screw rod passing through the sliding device and a nut connected to the screw rod, and the nut abuts against the upper end of the sliding device.

[0009] Compared with the related art, the beneficial effects of the utility model are:

[0010] 1. The positioning rod in the pipe flange eyelet correction tool is inserted into the eyelet on one flange, and the correction rod on the adjustment rod is inserted into the eyelet on the other flange. By adjusting the height position of the adjustment rod, the axis center line of the correction rod is aligned with the axis center line of the positioning rod, so as to achieve the alignment of the eyelets on the two flanges. No fulcrum support is required, no prying force is required, and the safety is higher and labor saving is achieved;

[0011] 2. The adjustment rod adopts the method of screw and nut. The position of the correction rod can be adjusted by screwing the nut, which is more convenient and labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A three-dimensional structural schematic diagram of the pipeline flange eyelet correction tool provided by the utility model;

[0013] Figure 2 for Figure 1 A front view of

[0014] Figure 3 For along Figure 2 AA cross-sectional view of ;

[0015] Figure 4 This is a schematic diagram of the use of the pipe flange eyelet correction tool.

[0016] In the accompanying drawings: 1. Clamping device; 11. First plate; 12. Second plate; 13. Slide groove; 14. Opening; 2. Sliding device; 21. Third plate; 22. Fourth plate; 3. Adjusting rod; 31. Screw; 32. Nut; 4. Correction rod; 5. Positioning rod; 6. Flange. DETAILED DESCRIPTION

[0017] The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict. For the convenience of description, if the words "upper", "lower", "left" and "right" appear in the following text, they only indicate that the upper, lower, left and right directions are consistent with the drawings themselves, and do not limit the structure.

[0018] like Figure 1-Figure 3 As shown, a pipe flange eyelet correction tool provided in this embodiment includes a clamping device 1, a sliding device 2, an adjusting rod 3, a correction rod 4 and a positioning rod 5.

[0019] The clamping device 1 includes a first plate 11 and two second plates 12 spaced apart and connected to the same side of the first plate 11. A slide groove 13 is formed between the two second plates 12. One end of the slide groove 13 away from the first plate 11 is an opening 14. The sliding device 2 enters through the opening 14 to be slidably disposed on the second plate 12. The positioning rod 5 is connected to the lower end of the first plate 11.

[0020] The sliding device 2 includes a third plate 21 and two fourth plates 22 connected to the lower end of the third plate 21 at intervals. The adjusting rod 3 is vertically mounted on the third plate 21. The two fourth plates 22 are placed on the outer sides of the two second plates 12, and there is a gap between the fourth plate 22 and the second plate 12. The lower surface of the third plate 21 is in sliding contact with the upper surface of the second plate 12. Bolts can be provided on the fourth plate 22, and the bolts can be extended to contact the outer surface of the second plate 12 to limit the sliding position of the sliding device 2. The upper end of the fourth plate 22 is connected to the third plate 21, and the lower end is a semicircular arc structure. A through hole is provided on the third plate 21, which is generally used to install the screw 31 of the adjusting rod 3.

[0021] The adjusting rod 3 includes a screw rod 31 and a nut 32 threadedly connected to the screw rod 31. The screw rod 31 passes through a through hole on the third plate 21. The screw rod 31 is located at the lower end of the third plate 21 and passes through the slide groove 13, and the end of the screw rod 31 is connected to the correction rod 4. The screw rod 31 is located at the upper end of the third plate 21 and is connected to the nut 32, and the nut 32 abuts against the upper end of the sliding device 2. The correction rod 4 and the positioning rod 5 are both cylindrical and are arranged face to face. The correction rod 4 is welded and fixed to the screw rod 31 as a whole. The positioning rod 5 is inserted and fixed on the first plate 11.

[0022] like Figure 4 As shown, when in use, first insert the positioning rod 5 on the pipe flange eyelet correction tool into one of the eyes on a flange 6, then place the sliding device 2 on the second plate 12, insert the screw 31 into the through hole of the sliding device 2, and insert the correction rod 4 on the screw 31 into a corresponding eye on the other flange 6. Put a nut 32 on the upper end of the screw 31, and adjust the height of the screw 31 by screwing the nut 32 to align the two eyes on the two flanges 6. After the two eyes are aligned, the other eyes are also aligned accordingly, and then the two flanges 6 are fitted, and bolts are installed in the aligned eyes (except the two eyes inserted by the tool), and finally the tool is removed, and bolts are installed in the eyes for the tool to insert, and the pipeline is reinstalled.

[0023] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A pipe flange eyelet correction tool, characterized in that: The invention comprises a clamping device (1), a sliding device (2), an adjusting rod (3), a correcting rod (4) and a positioning rod (5), wherein one end of the clamping device (1) is connected to the positioning rod (5), the sliding device (2) is slidably connected to the positioning rod (5) at the other end of the clamping device (1), the correcting rod (4) is connected to the adjusting rod (3), the adjusting rod (3) is vertically mounted on the sliding device (2), and the adjusting rod (3) is adjusted up and down so that the axis center line of the correcting rod (4) is aligned with the axis center line of the positioning rod (5).

2. The pipe flange eyelet correction tool according to claim 1 is characterized in that: The clamping device (1) comprises a first plate (11) and two second plates (12) spaced apart and connected to the same side of the first plate (11); a slide groove (13) is formed between the two second plates (12); one end of the slide groove (13) away from the first plate (11) is open (14); the sliding device (2) is slidably arranged on the second plate (12); the adjusting rod (3) is inserted into the slide groove (13); and the positioning rod (5) is connected to the first plate (11).

3. The pipe flange eyelet correction tool according to claim 1 is characterized in that: The sliding device (2) comprises a third plate (21) and two fourth plates (22) spaced apart and connected to the lower end of the third plate (21); the adjusting rod (3) is vertically mounted on the third plate (21); and the third plate (21) and the fourth plate (22) are slidably mounted on the clamping device (1).

4. The pipe flange eyelet correction tool according to claim 1 is characterized in that: The adjusting rod (3) comprises a screw rod (31) passing through the sliding device (2) and a nut (32) connected to the screw rod (31), wherein the nut (32) abuts against the upper end of the sliding device (2).

Images