Auxiliary supporting structure for steel pipe drilling

Abstract

The utility model provides a steel pipe drilling auxiliary supporting structure which comprises an inner supporting block, the inner supporting block is provided with an arc-shaped contact face and an abutting-in groove right opposite to the arc-shaped contact face, the steel pipe drilling auxiliary supporting structure further comprises a pull rod connected with the inner supporting block, and the abutting-in groove and the arc-shaped contact face surround one end of the pull rod. The pull rod comprises a plurality of rod sections which are detachably connected in sequence. According to the scheme, abutting-in supporting is provided in the steel pipe through the inner supporting block, the drill bit can abut against the abutting-in groove after drilling through, the drill bit is prevented from directly abutting against the inner wall of the other side of the steel pipe, drilling can be completed at a time without stopping for observation, and the overall efficiency can be improved; the problem that in the prior art, in order to prevent the inner wall of the steel pipe from being damaged, a drill bit needs to be stopped to observe the drilling progress, and overall efficiency is low is solved.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe processing auxiliary technology, and in particular to a steel pipe drilling auxiliary support structure. Background Technology

[0002] Steel pipes are generally round tubes. When drilling holes in their surfaces, a clamp is usually used to hold the pipe in place before drilling. Specifically, the clamp holds the pipe to be drilled, the drilling position is directly below the drill bit, and then the drill bit is started to move downwards to drill. However, during the actual drilling process, as the pipe wall becomes thinner, the drill bit loses its obstruction at the exact moment of penetration and can easily veer downwards, damaging the inner wall of the pipe on the other side. Therefore, it is necessary to constantly monitor the progress during drilling and stop periodically to observe and prevent the drill bit from veering directly downwards and damaging the inside of the pipe. This results in relatively low drilling efficiency. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an auxiliary support structure for drilling steel pipes, which solves the problem of low overall efficiency caused by the need to stop and observe the drilling progress of the drill bit in order to prevent damage to the inner wall of the steel pipe.

[0004] According to an embodiment of this utility model, a steel pipe drilling auxiliary support structure includes an inner support block with an arc-shaped contact surface and an insertion groove facing the arc-shaped contact surface. It also includes a tie rod connected to the inner support block, with the insertion groove and arc-shaped contact surface surrounding one end of the tie rod. The tie rod comprises multiple sequentially detachably connected rod segments. In this solution, the inner support block provides insertion support within the steel pipe. After the drill bit passes through, it can insert into the insertion groove, preventing direct contact with the inner wall of the steel pipe. Drilling can be completed in one pass without stopping for observation, thus improving overall efficiency. This solves the problem in the prior art where stopping to observe the drilling progress to prevent damage to the inner wall of the steel pipe leads to low overall efficiency.

[0005] Furthermore, a magnetic block can be detachably connected to the inner wall of the groove.

[0006] Furthermore, the inner support block is disc-shaped and its diameter is smaller than the inner diameter of the steel pipe.

[0007] Furthermore, a threaded through hole is provided at the center of the disc-shaped inner support block, and the rod segment includes a connecting rod segment that is threadedly connected to the threaded through hole, and an extension rod segment that is threadedly connected to the connecting rod segment.

[0008] Furthermore, the extension segment comprises multiple segments connected sequentially by threads.

[0009] Furthermore, both the end face of the connecting rod segment and the end face of the extension rod segment are recessed with threaded blind holes, and the end face of the extension rod segment opposite to the threaded blind hole is fixedly connected with a threaded post that is threadedly connected to the threaded blind hole.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] The internal support block provides support inside the steel pipe. After the drill bit passes through, it can be inserted into the groove to prevent it from directly hitting the inner wall of the other side of the steel pipe. Drilling can be completed in one go without stopping to observe, which improves the overall efficiency. This solves the problem of low overall efficiency in the existing technology, which requires stopping to observe the drilling progress in order to prevent damage to the inner wall of the steel pipe. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model. Figure 1 ;

[0013] Figure 2 This is a schematic diagram of the overall structure of an embodiment of the present utility model. Figure 2 ;

[0014] Figure 3 for Figure 1 Enlarged schematic diagram of a local structure at point A;

[0015] Figure 4 for Figure 2 Enlarged schematic diagram of the local structure at point B;

[0016] In the above attached figures:

[0017] 1. Inner support block, 2. Insertion groove, 3. Tie rod, 4. Steel pipe, 5. Drill bit, 6. Magnetic block, 7. Threaded through hole, 8. Connecting rod section, 9. Extension rod section, 10. Threaded column. Detailed Implementation

[0018] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0019] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] In an exemplary implementation, such as Figure 1-4 As shown, this embodiment provides an auxiliary support structure for drilling steel pipes, which includes an inner support block 1. The inner support block 1 has an arc-shaped contact surface and an insertion groove 2 facing the arc-shaped contact surface. The support structure also includes a pull rod 3 connected to the inner support block 1. The insertion groove 2 and the arc-shaped contact surface surround one end of the pull rod 3. The steel pipe 4 is horizontally positioned when clamped. The inner support block 1 can be inserted into a suitable position inside the steel pipe 4 by the pull rod 3. During drilling, the insertion groove 2 is located directly below the drilling position. When the drill bit 5 passes through, it can be inserted into the insertion groove 2 to prevent direct contact with the inner wall of the other side of the steel pipe 4. Drilling can be completed in one go without stopping for observation, thus improving overall efficiency and solving the problem that in the prior art, it is necessary to stop to prevent damage to the inner wall of the steel pipe 4. To observe the problem of low overall efficiency caused by the drilling progress of drill bit 5; furthermore, the tie rod 3 includes multiple sequentially detachable rod segments, so the tie rod 3 has a variable length and can be used for steel pipes 4 of different lengths. More specifically, the arc-shaped contact surface allows the bottom of the inner support block 1 to contact the inner bottom of the steel pipe 4, thereby making the inner support block 1 relatively stable inside the steel pipe 4; in a more detailed scheme, the inner support block 1 is disc-shaped and its diameter is smaller than the inner diameter of the steel pipe 4, so that the steel pipe 4 itself restricts the inner support block 1 inside, thereby making the orthogonal projection of drill bit 5 located in the insertion groove 2 during drilling. In particular, the insertion groove 2 has a larger size, so that even if the inner support block 1 has a certain offset, drill bit 5 can smoothly insert into the insertion groove 2.

[0021] In further proposals, such as Figure 1-4 As shown, a magnetic block 6 can also be detachably connected to the inner wall of the groove 2, so that the debris generated in the drilling can be attracted by the magnetic block 6, which facilitates subsequent cleaning. In particular, the magnetic block 6 is made of magnet, and the inner support block 1 can be made of iron or other materials. When it is made of other materials, it can be detachably connected by snap-fit.

[0022] In a more detailed plan, such as Figure 1 , 2As shown, a threaded through hole 7 is provided at the center of the disc-shaped inner support block 1. The rod segment includes a connecting rod segment 8 threadedly connected to the threaded through hole 7, and an extension rod segment 9 threadedly connected to the connecting rod segment 8. Further, the extension rod segment 9 includes multiple sequentially threaded connections. Different numbers of extension rod segments 9 are selected to be connected according to different lengths of steel pipes 4. If the length is sufficiently short, the extension rod segments 9 may not be connected. More specifically, one end face of the connecting rod segment 8 and one end face of the extension rod segment 9 are respectively provided with threaded blind holes. The extension rod segment 9 is opposite to... One end face of the threaded blind hole is fixedly connected to a threaded post 10 that is threaded to the threaded blind hole. That is, the threaded post 10 and the threaded blind hole realize the detachable connection between the extension sections and between the extension section and the connecting rod section 8. More specifically, the connecting rod section 8 and the inner support block 1 are also threadedly connected. When supporting steel pipes 4 of different sizes, inner support blocks 1 of different sizes can be selected, as long as they are slightly smaller than the inner diameter of the steel pipe 4 (not too small, otherwise the inner support block 1 may wobble significantly, which may cause the drill bit 5 to misalign and enter the groove 2).

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A steel pipe drilling auxiliary support structure, characterized in that, The device includes an inner support block having an arc-shaped contact surface and an abutment groove opposite to the arc-shaped contact surface, and a pull rod connected to the inner support block, wherein the abutment groove and the arc-shaped contact surface surround one end of the pull rod; wherein the pull rod includes a plurality of rod segments that are detachably connected in sequence.

2. The auxiliary support structure for drilling steel pipes as described in claim 1, characterized in that, A magnetic block can also be detachably connected to the inner wall of the groove.

3. The auxiliary support structure for drilling steel pipes as described in claim 1, characterized in that, The inner support block is disc-shaped and its diameter is smaller than the inner diameter of the steel pipe.

4. The auxiliary support structure for drilling steel pipes as described in claim 3, characterized in that, The inner support block has a threaded through hole at its disk-shaped center. The rod segment includes a connecting rod segment that is threadedly connected to the threaded through hole, and an extension rod segment that is threadedly connected to the connecting rod segment.

5. The auxiliary support structure for drilling steel pipes as described in claim 4, characterized in that, The extension rod segment comprises multiple segments connected sequentially by threads.

6. The auxiliary support structure for drilling steel pipes as described in claim 4, characterized in that, Both the end face of the connecting rod segment and the end face of the extension rod segment are recessed with threaded blind holes. The end face of the extension rod segment opposite to the threaded blind hole is fixedly connected with a threaded post that is threadedly connected to the threaded blind hole.

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