Magnetic drill fixing device suitable for pipeline

Abstract

The utility model discloses a magnetic drill fixing device suitable for a pipeline, the magnetic drill fixing device suitable for the pipeline comprises a first semi-ring pressing ring, a second semi-ring pressing ring, a locking assembly and a bearing platform assembly, the bearing platform assembly is connected on the first semi-ring pressing ring, one end of the first semi-ring pressing ring is rotatably connected with one end of the second semi-ring pressing ring through a pin shaft, and the other end of the first semi-ring pressing ring is rotatably connected with the locking assembly. The ends, away from the pin shaft, of the first semi-ring pressing ring and the second semi-ring pressing ring are connected with a locking assembly, the first semi-ring pressing ring and the second semi-ring pressing ring are arranged on a pipeline in a sleeving mode, a T-shaped cushion block is connected between the first semi-ring pressing ring and the second semi-ring pressing ring, the pipeline abuts against the T-shaped cushion block, the bearing platform assembly is connected with a magnetic drill, and the magnetic drill is used for tapping the pipeline. According to the magnetic drill fixing device suitable for the pipeline, the pipeline can be rapidly clamped through the first semi-ring pressing ring and the second semi-ring pressing ring, and the bearing platform assembly is locked and fixed through the locking assembly after being aligned to the position to be holed.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline construction, and in particular relates to a magnetic drill fixing device suitable for pipelines. Background Art

[0002] During the construction of pipeline connections such as offshore oil platform process pipelines and deepwater underwater manifolds, the workload of opening small-diameter holes on pipelines is large, with the characteristics of multiple construction sites, large number of the same specifications, and single repetitive work. The commonly used large-scale machine processing and opening method has great limitations due to the restrictions of the fixed working area of ​​the equipment. The magnetic drill has the characteristics of easy mobility, simple operation, reliable accuracy, high efficiency and energy saving, and is the preferred method for opening holes on pipelines.

[0003] However, the magnet base of the existing common magnetic drill is flat-bottomed and cannot fit and firmly adhere to the curved surface of the ferromagnetic metal pipe. At the same time, for some non-magnetic pipes such as stainless steel and non-metallic materials, there is no magnetic adsorption effect with the magnet base of the magnetic drill, which limits the application scope of the magnetic drill on the pipeline.

[0004] Therefore, it is urgent to design a magnetic drill fixing device suitable for pipelines to solve the problem of opening holes in the pipelines mentioned above. Utility Model Content

[0005] In order to solve the technical problem mentioned in the background technology that the magnetic drill cannot be effectively adsorbed and fixed on the pipeline, a magnetic drill fixing device suitable for the pipeline is provided to solve the problem of small-diameter holes on the pipeline.

[0006] To achieve the above purpose, the specific technical solution of the magnetic drill fixing device suitable for pipelines of the utility model is as follows:

[0007] A magnetic drill fixing device suitable for pipelines comprises a first half-ring pressure ring, a second half-ring pressure ring, a locking assembly and a base assembly, wherein the base assembly is connected to the first half-ring pressure ring, one end of the first half-ring pressure ring is rotatably connected to one end of the second half-ring pressure ring through a pin shaft, the first half-ring pressure ring and the second half-ring pressure ring are connected to the locking assembly at one end away from the pin shaft, the first half-ring pressure ring and the second half-ring pressure ring are sleeved on the pipeline, a T-shaped pad is connected between the first half-ring pressure ring and the second half-ring pressure ring, the pipeline abuts against the T-shaped pad, the base assembly is connected to a magnetic drill, and the magnetic drill opens a hole in the pipeline.

[0008] Furthermore, the first semi-ring pressing ring and the second semi-ring pressing ring are both composed of two parallel semi-ring arc plates, and a plurality of reinforcing ribs are connected between the two semi-ring arc plates of the first semi-ring pressing ring and the second semi-ring pressing ring.

[0009] Furthermore, the T-shaped gasket includes an upper wing plate, a web plate and a cotter pin. The cotter pin is inserted into the through hole of the upper wing plate, and the cotter pin abuts against the semi-annular arc plate. The upper wing plate is vertically connected to the web plate. The upper wing plate and the web plate are clamped in the T-shaped groove of the semi-annular arc plate, and the end of the web plate away from the upper wing plate abuts against the outer wall of the pipe.

[0010] Furthermore, the two semi-ring arc plates of the first semi-ring pressure ring are symmetrically connected with upper hook plates, the two semi-ring arc plates of the second semi-ring pressure ring are symmetrically connected with lower ear plates, and locking components are connected to the upper hook plates and the lower ear plates.

[0011] Furthermore, the locking assembly includes an upper special-shaped clamping rod and a lower special-shaped rotating rod. The lower special-shaped rotating rod is hinged between the two lower ear plates of the second semi-ring pressure ring, and the upper special-shaped clamping rod is hung between the upper hook plates of the first semi-ring pressure ring. A locking screw is connected between the upper special-shaped clamping rod and the lower special-shaped rotating rod.

[0012] Furthermore, through holes are opened on the square steels of the upper special-shaped clamping rod and the lower special-shaped rotating rod, and a locking screw is threaded on the square steel of the upper special-shaped clamping rod. One end of the locking screw passes through the through hole of the square steel of the upper special-shaped clamping rod and is threadedly connected to the through hole of the square steel of the lower special-shaped rotating rod, and a locking nut is threaded on the locking screw.

[0013] Furthermore, the support platform assembly includes a top plate, side plates and special-shaped connecting plates, the special-shaped connecting plates are respectively connected to the two ends of the top plate, the top plate is connected to the side plates, and the two ends of the side plates are connected to the special-shaped connecting plates.

[0014] Furthermore, arc-shaped moving grooves are provided on the two special-shaped connecting plates, and internal thread openings are symmetrically provided on the two semi-ring arc-shaped plates of the first semi-ring pressure ring, and tension bolts are screwed on the arc-shaped moving grooves of the special-shaped connecting plates and the internal thread openings of the semi-ring arc-shaped plates.

[0015] Furthermore, center ruler grooves are respectively provided at both ends of the top plate, and the two center ruler grooves are both arranged on the center line of the top plate, and a magnetic drill is adsorbed along the line connecting the center ruler grooves.

[0016] Furthermore, the semi-annular arc plate of the first semi-annular pressure ring is hinged to the semi-annular arc plate of the second semi-annular pressure ring through a pin shaft.

[0017] The magnetic drill fixing device for pipelines of the utility model has the following advantages:

[0018] The first half ring pressure ring and the second half ring pressure ring can quickly clamp the pipe, and the base assembly can be aligned with the position to be opened and then locked and fixed by the locking assembly. The base assembly can be installed on the first half ring pressure ring by loose bolts and fine-tuned to provide a stable adsorption base for the magnetic drill, solving the problem that the flat-bottomed magnetic drill cannot fit and firmly adsorb the curved surface of the ferromagnetic metal pipe. It can also be used on some non-magnetic material pipes that do not produce magnetic adsorption with the magnetic drill, expanding the application range of the magnetic drill. The device is easy to assemble, easy to move, and simple to operate. It is particularly suitable for a large number of small-diameter hole opening operations on the same pipeline. It can not only open holes on horizontal pipelines, but also is suitable for opening pipelines arranged at different angles, effectively improving the efficiency of pipeline opening operations. After removing the base assembly, it can also be used as a pipe group matching device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the magnetic drill fixing device applicable to pipelines of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of a magnetic drill fixing device suitable for pipelines according to the utility model;

[0021] Figure 3 It is a stereoscopic diagram of the first half ring pressure ring and the second half ring pressure ring of the magnetic drill fixing device suitable for pipelines of the utility model;

[0022] Figure 4 This is a three-dimensional diagram of a T-shaped pad of a magnetic drill fixing device suitable for pipelines according to the utility model;

[0023] Figure 5 It is a three-dimensional diagram of the locking assembly of the magnetic drill fixing device applicable to the pipeline of the utility model;

[0024] Figure 6 It is a stereoscopic diagram of a base assembly of a magnetic drill fixing device suitable for pipelines according to the utility model.

[0025] Description of the markings in the figure:

[0026] 1. Pipe; 2. Locking assembly; 21. Upper special-shaped clamping rod; 22. Lower special-shaped rotating rod; 23. Locking screw; 24. Locking nut; 3. Abutment assembly; 31. Top plate; 311. Center scale groove; 32. Side plate; 33. Special-shaped connecting plate; 331. Arc-shaped moving groove; 34. Tension bolt; 4. Magnetic drill; 5. First half ring pressure ring; 6. Second half ring pressure ring; 7. T-shaped slot; 8. T-shaped pad; 81. Upper wing plate; 82. Web plate; 83. Split pin; 9. Semi-ring arc plate; 91. Internal threaded hole; 10. Reinforcement rib; 11. Pin shaft; 12. Upper hook plate; 13. Lower ear plate. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0028] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present invention and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0029] Please refer to the attached Figure 1 To Attachment Figure 6 The utility model describes a magnetic drill fixing device suitable for a pipeline.

[0030] like Figure 1 As shown, the magnetic drill fixing device suitable for pipelines in the utility model includes a first half-ring pressure ring 5, a second half-ring pressure ring 6, a locking assembly 2 and a base assembly 3, the base assembly 3 is connected to the first half-ring pressure ring 5, one end of the first half-ring pressure ring 5 is rotatably connected to one end of the second half-ring pressure ring 6 through a pin shaft 11, the first half-ring pressure ring 5 and the second half-ring pressure ring 6 are connected with the locking assembly 2 at one end away from the pin shaft 11, the first half-ring pressure ring 5 and the second half-ring pressure ring 6 are sleeved on the pipeline 1, a T-shaped pad 8 is connected between the first half-ring pressure ring 5 and the second half-ring pressure ring 6, the pipeline 1 abuts on the T-shaped pad 8, and the base assembly 3 is connected with a magnetic drill 4, which opens a hole in the pipeline 1. The first half ring pressure ring 5 and the second half ring pressure ring 6 can quickly clamp the pipeline 1, and the base assembly 3 is aligned with the position to be drilled and then locked and fixed by the locking assembly 2. The base assembly 3 can be installed on the first half ring pressure ring 5 by means of loose bolts and the position can be fine-tuned to provide a stable adsorption base for the magnetic drill 4, thereby solving the problem that the flat-bottomed magnetic drill 4 cannot fit and stably adsorb the curved surface of the ferromagnetic metal pipeline 1. At the same time, it can also be used on some non-magnetic material pipelines 1 that do not produce magnetic adsorption effect with the magnetic drill 4, thereby expanding the application range of the magnetic drill 4.

[0031] The device is easy to assemble, move and operate, and is particularly suitable for drilling a large number of small-diameter holes on the same pipeline. It can not only drill holes on horizontal pipelines, but also is suitable for drilling holes on pipelines arranged at different angles, effectively improving the efficiency of pipeline drilling. After removing the base assembly, it can also be used as a pipeline group alignment device.

[0032] Further, if Figures 1 to 4 As shown, the first semi-ring pressure ring 5 and the second semi-ring pressure ring 6 are both composed of two parallel semi-ring arc plates 9, and a plurality of reinforcing ribs 10 are connected between the two semi-ring arc plates 9 of the first semi-ring pressure ring 5 and the second semi-ring pressure ring 6; the T-shaped gasket 8 includes an upper wing plate 81, a web plate 82 and a cotter pin 83, the cotter pin 83 is inserted into the through hole of the upper wing plate 81, the cotter pin 83 abuts on the semi-ring arc plate 9, the upper wing plate 81 is vertically connected with the web plate 82, the upper wing plate 81 and the web plate 82 are clamped in the T-shaped clamping groove 7 of the semi-ring arc plate 9, and the end of the web plate 82 away from the upper wing plate 81 abuts against the outer wall of the pipeline 1; the two semi-ring arc plates 9 of the first semi-ring pressure ring 5 are symmetrically connected with upper hook plates 12, and the two semi-ring arc plates 9 of the second semi-ring pressure ring 6 are symmetrically connected with lower ear plates 13, and the upper hook plate 12 and the lower ear plate 13 are connected with locking components 2.

[0033] In this embodiment, the semi-annular arc plates 9 of the first semi-annular pressure ring 5 and the second semi-annular pressure ring 6 are matched with the shape of the pipeline 1, and one end of the semi-annular arc plates 9 of the first semi-annular pressure ring 5 and the second semi-annular pressure ring 6 are hinged and rotated through a pin shaft 11, and the semi-annular arc plates 9 of the first semi-annular pressure ring 5 and the second semi-annular pressure ring 6 are respectively provided with an upper hook plate 12 and a lower ear plate 13 for installing the locking assembly 2 at one end away from the pin shaft 11, and a plurality of T-shaped slots 7 are provided on the semi-annular arc plates 9 of the first semi-annular pressure ring 5 and the second semi-annular pressure ring 6, and T-shaped gaskets 8 are installed in the T-shaped slots 7 for clamping the pipeline 1.

[0034] Preferably, the first semi-annular pressing ring 5 and the second semi-annular pressing ring 6 are respectively composed of two parallel vertical semi-annular arc plates 9, and a plurality of reinforcing ribs 10 are connected between the semi-annular arc plates 9 to form a frame.

[0035] Preferably, the T-shaped pad 8 is formed by connecting an upper wing plate 81 and a web plate 82. Carbon steel, stainless steel or other materials that do not damage the pipeline 1 can be selected according to the different materials of the pipeline 1. Through holes are provided on the edges of both ends of the upper wing plate 81 for inserting cotter pins 83 for anti-slip fixation. The height of the web plate 82 can be designed according to the different diameters of the pipeline 1. T-shaped pads 8 of different specifications are designed and manufactured as a set, so that the device can be applied to pipelines 1 within a certain diameter range by replacing the T-shaped pad 8.

[0036] Further, if Figure 1 , Figure 3 and Figure 5As shown, the locking assembly 2 includes an upper special-shaped clamping rod 21 and a lower special-shaped rotating rod 22. The lower special-shaped rotating rod 22 is hinged between the two lower ear plates 15 of the second semi-ring pressure ring 12. The upper special-shaped clamping rod 21 is hung between the upper hook plates 12 of the first semi-ring pressure ring 5. A locking screw 23 is connected between the upper special-shaped clamping rod 21 and the lower special-shaped rotating rod 22. Through holes are opened on the square steels of the upper special-shaped clamping rod 21 and the lower special-shaped rotating rod 22. The locking screw 23 is hinged on the square steel of the upper special-shaped clamping rod 21. One end of the locking screw 23 passes through the through hole of the square steel of the upper special-shaped clamping rod 21 and is screwed to the through hole of the square steel of the lower special-shaped rotating rod 22. A locking nut 24 is screwed on the locking screw 23.

[0037] In this embodiment, two upper hook plates 12 are provided and symmetrically fixed on the ends of the two semi-ring arc plates 9 of the first semi-ring pressure ring 5, so as to hang the upper special-shaped clamping rod 21 of the locking assembly 2; two lower ear plates 13 are also provided and symmetrically fixed on the ends of the two semi-ring arc plates 9 of the second semi-ring pressure ring 6, and the two lower ear plates 13 are provided with axially symmetrical through holes for installing the lower special-shaped rotating rod 22 of the locking assembly 2.

[0038] The two ends of the lower special-shaped rotating rod 22 are transitionally fitted and installed in the through hole of the lower ear plate 13 and can rotate; a through hole is provided at the axial and transverse center intersection of the upper and lower planes of the middle square steel of the upper special-shaped clamping rod 21, and one end of the locking screw 23 passes through the through hole and is fixed to the axial and transverse center intersection of the upper plane of the middle square steel of the lower special-shaped rotating rod 22, and the locking nut 24 is screwed on the locking screw 23.

[0039] Preferably, when in use, the locking screw 23 and the lower special-shaped rotating rod 22 are rotated inward and the two ends of the upper special-shaped clamping rod 21 are respectively hung in the grooves of the two upper hook plates 12, and the loosened locking nut 24 on the locking screw 23 is tightened to ensure that the first half-ring pressure ring 5 and the second half-ring pressure ring 6 are firmly clamped on the pipe 1.

[0040] Further, if Figure 1 , Figure 2 and Figure 6As shown, the platform assembly 3 includes a top plate 31, a side plate 32 and a special-shaped connecting plate 33, the special-shaped connecting plate 33 is respectively connected to the two ends of the top plate 31, the top plate 31 is connected to the side plate 32, and the two ends of the side plate 32 are connected to the special-shaped connecting plate 33; the two special-shaped connecting plates 33 are each provided with an arc-shaped moving groove 331, and the two semi-ring arc plates 9 of the first semi-ring pressure ring 5 are symmetrically provided with internal thread openings 91, and the arc-shaped moving groove 331 of the special-shaped connecting plate 33 and the internal thread opening 91 of the semi-ring arc plate 9 are screwed with a tension bolt 34; the two ends of the top plate 31 are respectively provided with a center ruler groove 311, and the two center ruler grooves 311 are both arranged on the center line of the top plate 31, and a magnetic drill 4 is adsorbed along the line connecting the center ruler grooves 311; the semi-ring arc plate 9 of the first semi-ring pressure ring 5 is hinged to the semi-ring arc plate 9 of the second semi-ring pressure ring 6 through a pin 11.

[0041] In this embodiment, a center ruler groove 311 for positioning is provided at the transverse center position of both ends of the top plate 31. Preferably, the side plates 32 and the special-shaped connecting plates 33 are symmetrically arranged. The top plate 31, the side plates 32 and the special-shaped connecting plates 33 are connected and fixed to each other. The inner side spacing of the two special-shaped connecting plates 33 transitionally matches the outer side spacing of the two semi-ring arc plates 9 and can slide. The special-shaped connecting plates 33 are provided with two arc-shaped movable grooves 331 matching the internal threaded holes 91 on the semi-ring arc plates 9 of the first semi-ring pressure ring 5, and the base assembly 3 is fixed on the first semi-ring pressure ring 5 by screwing the tension bolts 34 into the internal threaded holes 91.

[0042] Preferably, two axially symmetrical internal threaded holes 91 are respectively provided on the two semi-annular arc plates 9 of the first semi-annular pressure ring 5, so as to be fixedly connected with the arc-shaped movable groove 331 of the base assembly 3 by tightening bolts 34; the top plate 31 of the base assembly 3 is a ferromagnetic steel plate to ensure effective and stable adsorption with the magnet seat of the magnetic drill 4.

[0043] The working principle and steps of the magnetic drill fixing device for pipelines in the utility model are as follows:

[0044] 1. Before use, the first half ring pressure ring 5, the second half ring pressure ring 6, the locking assembly 2 and the base assembly 3 have been assembled as a whole, and a T-shaped spacer 8 matching the diameter and material of the pipe 1 has been selected;

[0045] 2. The first half ring pressure ring 5 and the second half ring pressure ring 6 are hingedly rotated and opened and closed through the pin shaft 11 to be placed on one side of the position of the pipe 1 to be drilled along the axis, and then the upper special-shaped pressing rod 21 of the locking assembly 2 is hung in the groove of the upper hook plate 12 of the first half ring pressure ring 5, and the loose locking nut 24 on the locking screw 23 is slightly tightened to loosely clamp the first half ring pressure ring 5 and the second half ring pressure ring 6 on the pipe 1;

[0046] 3. Move and adjust the circumferential positions of the first half ring pressing ring 5 and the second half ring pressing ring 6 by visual inspection, placing a magnetic level ruler on the top plate 31, placing a measuring ruler in the center ruler groove 311, etc., so that the top plate 31 of the base assembly 3 and the hole to be drilled of the pipeline 1 are in the same horizontal plane, and firmly tighten the locking nut 24 of the locking assembly 2 to firmly clamp the first half ring pressing ring 5 and the second half ring pressing ring 6 on the pipeline 1;

[0047] 4. When the first half ring pressure ring 5 and the second half ring pressure ring 6 are firmly locked, the first half ring pressure ring 5 and the second half ring pressure ring 6 together with the cap assembly 3 may undergo a certain circumferential displacement. If there is displacement, the position of the cap assembly 3 needs to be fine-tuned. First, loosen the two sets of tension bolts 34 that fix the cap assembly 3, and then place a magnetic level ruler on the top plate 31 or a measuring ruler in the center ruler groove 311, and use the arc-shaped moving groove 34 to fine-tune the circumferential position of the mobile cap assembly 3 in the first half ring pressure ring 5, so that the top plate 31 of the cap assembly 3 and the hole to be drilled of the pipeline 1 are precisely in the same horizontal plane, and then tighten the tension bolts 34 to make the cap assembly 3 firmly connected to the first half ring pressure ring 5;

[0048] 5. Align the lateral center positions of the two ends of the magnet seat of the magnetic drill 4 with the connecting lines of the center ruler grooves 311 at the two ends of the top plate 31 of the platform assembly 3, and then adsorb it onto the top plate 31. Then, the position of the magnetic drill 4 can be fine-tuned to align the drill bit radially with the center point of the hole to be drilled in the pipeline 1, and perform the hole-making operation on the pipeline 1;

[0049] 6. After the drilling operation is completed, first remove the magnetic drill 4, then loosen the locking nut 24 of the locking assembly 2, move the upper shaped clamping rod 21 out of the groove of the upper hook plate 12 of the first half-ring pressure ring 5, and then remove the device as a whole from the pipeline 1; if there are a large number of opening operations on the same pipeline, you only need to loosen the locking nut 24 of the locking assembly 2, drag the device to the next drilling position and put it in place.

[0050] Based on the magnetic drill fixing device suitable for pipelines, the utility model can quickly clamp the pipeline 1 through the first half-ring pressure ring 5 and the second half-ring pressure ring 6, and align the magnetic drill 4 connected to the base assembly 3 with the position to be drilled, and then lock and fix it using the upper special-shaped clamping rod 21 and the lower special-shaped rotating rod 22 of the locking assembly 2. The special-shaped connecting plate 33 of the base assembly 3 can be installed on the first half-ring pressure ring 5 through the tightening bolt 34 and fine-tune the position, so that it provides a stable adsorption base for the magnetic drill 4, solving the problem that the flat-bottomed magnetic drill 4 cannot fit and stably adsorb on the curved surface of the ferromagnetic metal pipeline 1. At the same time, it can also be used on some non-magnetic material pipelines 1 that do not produce magnetic adsorption effect with the magnetic drill 4, thereby expanding the application range of the magnetic drill 4. The device is easy to assemble, easy to move and simple to operate. It is particularly suitable for opening a large number of small-diameter holes on the same pipeline 1. It can not only open holes on the pipeline 1 in a horizontal position, but also is suitable for opening holes on the pipeline 1 arranged at different angles, effectively improving the operating efficiency of opening holes in the pipeline 1. After removing the base assembly, it can also be used as a pipe 1 group alignment device.

[0051] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A magnetic drill fixing device suitable for pipelines, characterized in that: The utility model comprises a first half ring pressure ring, a second half ring pressure ring, a locking assembly and a base assembly, wherein the base assembly is connected to the first half ring pressure ring, one end of the first half ring pressure ring is rotatably connected to one end of the second half ring pressure ring through a pin shaft, the first half ring pressure ring and the second half ring pressure ring are connected with a locking assembly at one end away from the pin shaft, the first half ring pressure ring and the second half ring pressure ring are sleeved on the pipeline, a T-shaped pad is connected between the first half ring pressure ring and the second half ring pressure ring, the pipeline abuts against the T-shaped pad, and a magnetic drill is connected to the base assembly, and the magnetic drill drills a hole in the pipeline.

2. The magnetic drill fixing device for pipelines according to claim 1, characterized in that: The first half ring pressing ring and the second half ring pressing ring are both composed of two parallel half ring arc plates, and a plurality of reinforcing ribs are connected between the two half ring arc plates of the first half ring pressing ring and the second half ring pressing ring.

3. The magnetic drill fixing device for pipelines according to claim 2, characterized in that: The T-shaped gasket includes an upper wing plate, a web plate and a cotter pin. The cotter pin is inserted into the through hole of the upper wing plate, and the cotter pin abuts against the semi-circular arc plate. The upper wing plate is vertically connected with the web plate. The upper wing plate and the web plate are clamped in the T-shaped groove of the semi-circular arc plate, and the end of the web plate away from the upper wing plate abuts against the outer wall of the pipe.

4. The magnetic drill fixing device for pipelines according to claim 2, characterized in that: The two semi-ring arc plates of the first semi-ring pressure ring are symmetrically connected with upper hook plates, the two semi-ring arc plates of the second semi-ring pressure ring are symmetrically connected with lower ear plates, and locking components are connected to the upper hook plates and the lower ear plates.

5. The magnetic drill fixing device for pipelines according to claim 4, characterized in that: The locking assembly includes an upper special-shaped clamping rod and a lower special-shaped rotating rod. The lower special-shaped rotating rod is hinged between the two lower ear plates of the second semi-ring pressure ring. The upper special-shaped clamping rod is hung between the upper hook plates of the first semi-ring pressure ring. A locking screw is connected between the upper special-shaped clamping rod and the lower special-shaped rotating rod.

6. The magnetic drill fixing device for pipelines according to claim 5, characterized in that: Through holes are opened on the square steels of the upper special-shaped clamping rod and the lower special-shaped rotating rod. A locking screw is screwed on the square steel of the upper special-shaped clamping rod. One end of the locking screw passes through the through hole of the square steel of the upper special-shaped clamping rod and is screwed with the through hole of the square steel of the lower special-shaped rotating rod. A locking nut is screwed on the locking screw.

7. The magnetic drill fixing device for pipelines according to claim 1, characterized in that: The platform assembly comprises a top plate, side plates and special-shaped connecting plates, wherein the special-shaped connecting plates are respectively connected to both ends of the top plate, the top plate is connected to the side plates, and both ends of the side plates are connected to the special-shaped connecting plates.

8. The magnetic drill fixing device for pipelines according to claim 7, characterized in that: The two special-shaped connecting plates are both provided with arc-shaped moving grooves, the two semi-circular arc-shaped plates of the first semi-circular pressure ring are symmetrically provided with internal thread openings, and the arc-shaped moving grooves of the special-shaped connecting plates and the internal thread openings of the semi-circular arc-shaped plates are screwed with tension bolts.

9. The magnetic drill fixing device for pipelines according to claim 7, characterized in that: Center ruler grooves are respectively arranged at two ends of the top plate, and both center ruler grooves are arranged on the center line of the top plate, and a magnetic drill is adsorbed along the connecting line of the center ruler grooves.

10. The magnetic drill fixing device for pipelines according to claim 2, characterized in that: The semi-annular arc plate of the first semi-annular pressure ring is hinged with the semi-annular arc plate of the second semi-annular pressure ring through a pin shaft.

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