Drill rod descending assisting device for underground hole drilling

Abstract

The utility model discloses an auxiliary drill rod descending device for underground hole drilling, and belongs to the technical field of drilling. The device mainly comprises an outer ring; the arc-shaped clamping ring is mounted in the outer ring; the abutting ends are installed on the two sides of the arc-shaped clamping ring. The guide groove is formed in one side of the outer ring; the handle is mounted at one end of the arc-shaped clamping ring; the positioning bolt is mounted on the outer ring; the positioning hole is formed in the handle; the connecting rods are installed on the two sides of the outer ring. According to the buried hole drilling auxiliary drill rod descending device, the drill rod is positioned by arranging the outer ring and the arc-shaped clamping ring, and the connecting rod is arranged at the upper end of the outer ring, so that the purpose of assisting in descending the drill rod is achieved.

Description

Technical Field

[0001] This application relates to the field of drilling technology, specifically to a device for assisting in drilling underground boreholes by lowering the drill rod. Background Technology

[0002] As the name suggests, a ground-source borehole drill is a specialized device used to drill holes of a specific depth and diameter in the ground. These holes, known as ground-source boreholes, are commonly used in various fields such as ground source heat pump systems, geological exploration, and environmental monitoring.

[0003] However, when operating a buried borehole drilling rig, the drill string lowering operation is the core procedure in drilling engineering, which refers to the process of lowering the drill string, consisting of drill bit, drill pipe, drill collar, etc., into the well until the drill bit touches the bottom of the well.

[0004] For example, patent CN211851699U discloses a corrosion-resistant downhole drill pipe. This patent improves the corrosion resistance of the drill pipe body by combining a waterproof layer and an anti-corrosion layer. The limiting block and limiting groove make it easy for the drill pipe body to drive the drill bit. The fixing block and the placement block are fixed by the first bolt, which makes the connection between the drill pipe body and the drill bit more secure. This solves the problem of insufficient connection between the drill pipe body and the drill bit in the use of existing drill pipes and improves the stability of the drill bit during use.

[0005] In traditional underground borehole drilling operations, the drill rod is usually placed on the drilling rig. When lowering the drill rod, workers need to lift it manually, which not only increases the labor intensity of workers, but also easily causes injury from falling objects, posing a serious safety hazard.

[0006] Therefore, it is necessary to provide a drilling rod lowering device to assist in the drilling of underground holes to solve the above problems.

[0007] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0008] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide an auxiliary drilling rod lowering device for underground borehole drilling, which solves the problem that workers need to manually lift the drill rod during lowering, which may cause injury from falling objects.

[0009] The technical solution adopted by this application to solve its technical problem is: a device for assisting in drilling a buried hole, comprising:

[0010] Outer ring;

[0011] An arc-shaped retaining ring is installed inside the outer ring;

[0012] A retaining end is installed on both sides of the arc-shaped retaining ring;

[0013] The guide groove is formed on one side of the outer ring;

[0014] A handle is attached to one end of the arc-shaped retaining ring;

[0015] A positioning bolt, which is mounted on the outer ring;

[0016] A positioning hole is provided on the handle;

[0017] A connecting rod is installed on both sides of the outer ring.

[0018] Furthermore, a slide is fixedly provided inside the outer ring, and the arc-shaped retaining ring is slidably disposed on the slide.

[0019] Furthermore, a notch is provided on one side of the outer ring, and the handle extends to the outside through the guide groove.

[0020] Furthermore, the positioning bolt is matched to the size of the positioning hole.

[0021] Furthermore, a stabilizing rod is provided at the middle position on the connecting rod.

[0022] The beneficial effects of this application are: the underground borehole drilling auxiliary drill rod device provided by this application, by setting an outer ring and an arc-shaped retaining ring, positions the drill rod, and a connecting rod is set at the upper end of the outer ring, thereby achieving the purpose of assisting in lowering the drill rod.

[0023] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0024] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0025] In the attached diagram:

[0026] Figure 1 This is an overall schematic diagram of a drill rod lowering device for underground borehole drilling in this application;

[0027] Figure 2 for Figure 1 A schematic diagram of the inner and outer rings and the arc-shaped outer ring;

[0028] The following are the labeling elements in the figure:

[0029] 1. Outer ring; 2. Arc-shaped retaining ring; 3. Guide groove; 4. Handle; 5. Positioning bolt; 6. Positioning hole; 7. Connecting rod; 8. Stabilizing rod; 9. Slide table; 10. Support end. Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0032] like Figures 1-2 As shown, this application provides an auxiliary drill rod lowering device for underground borehole drilling. The auxiliary drill rod lowering device is set at the drilling site of the underground borehole drilling machine and is mainly used to assist in lowering the drill rod, reducing the amount of manual lifting work for workers. Specifically, the auxiliary drill rod lowering device includes an outer ring 1, and a notch is opened on one side of the outer ring 1. The notch is used to allow the end face of the drill rod to enter the inner part of the outer ring 1 for use, so that the position of the drill rod can be stabilized later.

[0033] Meanwhile, a slide table 9 is fixedly installed inside the outer ring 1, and an arc-shaped retaining ring 2 is rotatably installed on the slide table 9, so that the operator can push the arc-shaped retaining ring 2 to rotate inside the outer ring 1. At the same time, the arc-shaped retaining ring 2 is provided with abutting ends 10 at both ends, which are used to fit against the end face of the drill pipe.

[0034] Furthermore, a guide groove 3 is provided on the outer side of the outer ring 1, and a handle 4 is fixedly provided at one end of the arc-shaped retaining ring 2. The handle 4 extends outward through the guide groove 3, so that the staff can push the handle 4 along the guide groove 3 to drive the arc-shaped retaining ring 2 to rotate inside the outer ring 1.

[0035] Meanwhile, a positioning hole 6 is provided on the handle 4, and multiple sets of positioning bolts 5 are threaded on the outer ring 1. The positioning bolts 5 are matched with the size of the positioning hole 6. Thus, when the operator pushes the handle 4 to move along the guide groove 3 to the appropriate position, the operator can then rotate the positioning bolts 5 into the positioning hole 6 to lock the position of the arc-shaped retaining ring 2.

[0036] Before drilling, the drill rods need to be neatly stacked on the ground. Then, the end face of the drill rod is guided into the arc-shaped retaining ring 2 through the notch on one side of the outer ring 1. Then, by pushing the handle 4 along the guide groove 3, the arc-shaped retaining ring 2 is rotated inside the outer ring 1 until the holding end 10 of the arc-shaped retaining ring 2 is in contact with the surface of the drill rod. Then, the drill rod is initially positioned by the holding end 10 of the arc-shaped retaining ring 2 and the notch of the outer ring 1. Finally, the operator can rotate the positioning bolt 5 into the positioning hole 6 to lock the position of the arc-shaped retaining ring 2, thereby completing the drilling rod positioning operation.

[0037] In order to facilitate the next step of the operation, connecting rods 7 are provided on both sides of the outer ring 1, and a stabilizing rod 8 is provided in the middle of the connecting rod 7. The stabilizing rod 8 is used to improve the overall stability, and the top of the connecting rod 7 is used to connect with the external lifting device.

[0038] Therefore, when lowering the drill rod, firstly, the end face of the drill rod is initially positioned using the outer ring 1 and the arc-shaped retaining ring 2. Then, the top of the connecting rod 7 is connected to the external lifting device. Finally, the external lifting device is activated. It should be noted that while the external lifting device is lifting the drill rod, the other end of the drill rod rests against the ground. As the external lifting device steadily lifts, the drill rod rotates around the abutting end 10 of the arc-shaped retaining ring 2 and the notch of the outer ring 1 until the drill rod is perpendicular to the ground. Then, the external lifting device can lift the drill rod from the ground onto the drilling machine. Finally, the operator moves the drill rod using external tools to align it and then performs the operation of locking the drill rod.

[0039] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A borehole drilling auxiliary downhole rod device, characterized by: include: Outer ring (1); An arc-shaped retaining ring (2) is installed inside the outer ring (1); A retaining end (10) is installed on both sides of the arc-shaped retaining ring (2); Guide groove (3), which is formed on one side of the outer ring (1); A handle (4) is mounted on one end of the arc-shaped retaining ring (2); A positioning bolt (5) is installed on the outer ring (1); A positioning hole (6) is provided on the handle (4); Connecting rod (7) is installed on both sides of the outer ring (1).

2. A down-the-hole drilling auxiliary drill rod device according to claim 1, characterized in that: The outer ring (1) is fixedly provided with a slide (9), and the arc-shaped retaining ring (2) is slidably disposed on the slide (9).

3. The underground borehole drilling auxiliary drill rod lowering device according to claim 1, characterized in that: The outer ring (1) has a notch on one side, and the handle (4) extends to the outside through the guide groove (3).

4. A down-the-hole drilling auxiliary drill rod device according to claim 1, characterized in that: The positioning bolt (5) is matched with the size of the positioning hole (6).

5. A down-the-hole drilling auxiliary drill rod device according to claim 1, characterized in that: A stabilizing rod (8) is provided at the middle position on the connecting rod (7).

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