A drill pipe positioning guard

Abstract

The utility model relates to the coal mine underground mining support technical field, especially to the drill rod positioning technical field, concretely to a drill rod positioning protection device. The utility model discloses in order to solve the problem that the drill rod swings greatly in the operation process, leads to the positioning difficult problem, therefore provides a drill rod positioning protection device, including the round -cylindrical limit sleeve who is compatible with the drill rod, two positioning struts, and the limit sleeve is hinged by the opening and closing hinge piece and is formed to two half -round sleeves, two positioning struts are parallelly arranged with the limit sleeve and two positioning struts are symmetrically arranged on the both sides of the limit sleeve, and two positioning struts are fixed on the outer circumferential surface of two half -round sleeves respectively. The positioning protection device adopts the utility model to solve the problem that the drill rod swings greatly in the operation process, leads to the positioning difficult problem.

Description

Technical Field

[0001] This utility model relates to the field of underground mining support technology in coal mines, and particularly to the field of drill pipe positioning technology, specifically a drill pipe positioning and protection device. Background Technology

[0002] In underground coal mine operations, workers often encounter technical difficulties when using coal face drills to drill holes. The significant swaying of the drill rod during operation makes it difficult to fix the hole, causing the drill rod to lose its verticality and even exceeding the design diameter. These problems directly affect the quality of anchor bolt support, thereby impacting the safety and stability of underground operations.

[0003] To accurately position the drill rod and prevent it from swaying, workers often grip it directly with gloved hands until it enters the hard coal seam. However, this practice poses a serious safety hazard. According to the strict regulations of the "Coal Mine Safety Regulations," it is strictly forbidden to hold a rotating drill rod with gloved hands while drilling, as the rotating drill rod can easily entangle fingers, and the consequences of an accident would be unimaginable. Summary of the Invention

[0004] To address the problem of significant swaying of the drill rod during operation, which leads to positioning difficulties, this invention provides a drill rod positioning and protection device.

[0005] This utility model is achieved using the following technical solution: A drill pipe positioning and protection device includes a cylindrical limiting sleeve adapted to the drill pipe (as is known to those skilled in the art, the adaptation here refers to the drill pipe being able to rotate within the limiting sleeve), and two positioning support rods. The limiting sleeve is formed by two semi-circular sleeves hinged together by an opening and closing hinge. The two positioning support rods are arranged parallel to the limiting sleeve and symmetrically arranged on both sides of the limiting sleeve. The two positioning support rods are respectively fixed to the outer circumferential surface of the two semi-circular sleeves.

[0006] When in use, after aligning the drill rod with the drill hole, the operator opens the two semi-circular sleeves of the positioning and protective device, then puts them over the drill rod and closes them. When the drill rod starts drilling, the operator holds the positioning and protective device to ensure that the two semi-circular sleeves are closed, while the bottom ends of the two positioning support rods of the positioning and protective device are supported on the coal face. After the drill rod enters the hard coal body, the operator opens the two semi-circular sleeves of the positioning and protective device again and removes the positioning and protective device.

[0007] Furthermore, each semicircular sleeve is fixed to its corresponding positioning support rod at both ends by two connecting rods. Each semicircular sleeve, the two connecting rods, and the corresponding positioning support rod form a square area (in specific implementation, the width of the square area is 100mm). The two square areas facilitate the operator's grip on the limiting sleeve, so as to close the two semicircular sleeves and support the bottom ends of the two positioning support rods against the coal face.

[0008] Furthermore, both positioning struts are telescopic and can be positioned after telescopic extension, making it easy to adjust the length of the positioning struts and adapt to the complex environment of coal mines.

[0009] Furthermore, each positioning support includes a positioning sleeve and a movable rod that extends and retracts within the positioning sleeve. Each positioning sleeve has a positioning hole on its central circumferential surface, and a positioning nut that matches the positioning hole is fixed to the outer circumferential surface of each positioning sleeve. Each positioning nut is fitted with a positioning bolt. In use, after the movable rod is positioned relative to the positioning sleeve, the positioning bolt is tightened, causing the bottom end of the positioning bolt to press against the movable rod, thus achieving the fixed positioning of the movable rod after extension and retraction.

[0010] Furthermore, the bottom ends of both movable rods are tapered, which facilitates better support of the movable rods on the coal face.

[0011] The beneficial effects of this utility model are as follows: The positioning and protection device described in this utility model solves the problem of large swing of the drill rod during operation, which leads to positioning difficulties; at the same time, the positioning and protection device can also prevent the operator from easily getting their fingers caught when holding the drill rod directly; in addition, the positioning and protection device has high positioning efficiency, high safety, simple structure, low manufacturing cost, and strong practicality. Attached Figure Description

[0012] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the drill pipe protection device described in this utility model.

[0015] In the diagram: 1-semi-circular sleeve, 2-opening and closing hinge, 3-positioning support rod, 31-positioning sleeve, 32-moving rod, 33-positioning nut, 34-positioning bolt, 4-connecting rod, 5-square area. Detailed Implementation

[0016] To better understand the above-mentioned objectives, features, and advantages of this utility model, the solution of this utility model will be further described below. It should be noted that, unless otherwise specified, the embodiments of this utility model and the features thereof can be combined with each other.

[0017] In this description, it should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. It should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joint" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0018] Many specific details are set forth in the following description in order to provide a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of the present invention, and not all embodiments.

[0019] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0020] like Figure 1 As shown, a drill pipe positioning and protection device includes a cylindrical limiting sleeve adapted to the drill pipe (as is known to those skilled in the art, the adaptation here refers to the drill pipe being able to rotate within the limiting sleeve), and two positioning support rods 3. The limiting sleeve is formed by two semi-circular sleeves 1 hinged together by an opening and closing hinge 2. The two positioning support rods 3 are arranged parallel to the limiting sleeve and symmetrically arranged on both sides of the limiting sleeve. The two positioning support rods 3 are respectively fixed to the outer circumferential surface of the two semi-circular sleeves 1.

[0021] When in use, after aligning the drill rod with the drill hole, the operator opens the two semi-circular sleeves 1 of the positioning and protection device, then puts them over the drill rod and closes them. When the drill rod starts drilling, the operator holds the positioning and protection device to ensure that the two semi-circular sleeves 1 are closed, while the bottom ends of the two positioning support rods 3 of the positioning and protection device are supported on the coal face. After the drill rod enters the hard coal body, the operator opens the two semi-circular sleeves 1 of the positioning and protection device and removes the positioning and protection device.

[0022] In practice, each semicircular sleeve 1 is fixed at both ends to a corresponding positioning support rod 3 via two connecting rods 4. Each semicircular sleeve 1, the two connecting rods 4, and the corresponding positioning support rod 3 form a square area 5 (in practice, the width of the square area 5 is 100mm). The two square areas 5 facilitate the operator's grip on the limiting sleeve, so as to close the two semicircular sleeves 1 and support the bottom ends of the two positioning support rods 3 against the coal face.

[0023] In practice, both positioning struts 3 are telescopic and can be positioned after telescopic extension, which makes it easy to adjust the length of the positioning struts 3 and adapt to the complex environment of coal mines.

[0024] In practical implementation, each positioning support rod 3 includes a positioning sleeve 31 and a movable rod 32 that extends and retracts within the positioning sleeve 31. Each positioning sleeve 31 has a positioning hole on its central circumferential surface, and a positioning nut 33 adapted to the positioning hole is fixed on the outer circumferential surface of each positioning sleeve 31. Each positioning nut 33 is fitted with a positioning bolt 34. In use, after the movable rod 32 is positioned relative to the positioning sleeve 31, the positioning bolt 34 is tightened, causing the bottom end of the positioning bolt 34 to press against the movable rod 32, thus achieving the positioning and fixation of the movable rod 32 after extension and retraction.

[0025] In practice, the bottom ends of both movable rods 32 are tapered, which makes it easier for the movable rods 32 to be better supported on the coal face.

[0026] The above description is merely a specific embodiment of this utility model, enabling those skilled in the art to understand or implement it. Although detailed descriptions have been provided with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments, and all should be covered by the protection scope of the claims.

Claims

1. A drill pipe positioning and protection device, characterized in that, It includes a cylindrical limiting sleeve adapted to the drill pipe and two positioning support rods (3). The limiting sleeve is formed by two semi-circular sleeves (1) hinged together by an opening and closing hinge (2). The two positioning support rods (3) are arranged parallel to the limiting sleeve and symmetrically arranged on both sides of the limiting sleeve. The two positioning support rods (3) are respectively fixed to the outer circumference of the two semi-circular sleeves (1).

2. The drill pipe positioning and protection device according to claim 1, characterized in that, Each semicircular sleeve (1) is fixed at both ends by two connecting rods (4) to the corresponding positioning support rod (3). Each semicircular sleeve (1), the two connecting rods (4), and the corresponding positioning support rod (3) form a square area (5).

3. The drill pipe positioning and protection device according to claim 2, characterized in that, Both positioning struts (3) are telescopic and can be positioned after telescopic extension.

4. The drill pipe positioning and protection device according to claim 3, characterized in that, Each positioning support rod (3) includes a positioning sleeve (31) and a movable rod (32) that extends and retracts within the positioning sleeve (31). Each positioning sleeve (31) has a positioning hole on its circumferential surface in the middle. Each positioning sleeve (31) has a positioning nut (33) that matches the positioning hole fixed on its outer circumferential surface. Each positioning nut (33) is fitted with a positioning bolt (34).

5. A drill pipe positioning and protection device according to claim 4, characterized in that, The bottom ends of both movable rods (32) are conical.

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