Triangular spiral deslagging type gas extraction casing pipe drill rod

Abstract

The utility model relates to the technical field of drill rods, in particular to a three-edged spiral deslagging type gas extraction casing drill rod which comprises a drill rod body, a sealing plate and a supporting plate are arranged in the drill rod body, an electric push rod is arranged at the top of the supporting plate, a connecting plate is arranged at the top of the electric push rod, and an inner pipe is arranged on one side of the connecting plate. A fixing pipe is arranged in the inner pipe, a limiting plate is arranged at the top of the fixing pipe, a screw hole is formed in the drill rod body, and a fixing screw is arranged in the screw hole. According to the three-edged spiral deslagging type gas extraction casing pipe drill rod, the effect of extracting gas is achieved through matched use of the sealing plate, the inner pipe and the meshes, the effect of driving the inner pipe to ascend and descend is achieved through matched use of the supporting plate, the electric push rod and the connecting plate, and the effect of conveniently collecting gas is achieved through matched use of the inner pipe and the fixing pipe.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of drill rod, concretely to a three-edge spiral deslagging type gas extraction casing pipe drill rod. BACKGROUND

[0002] Three-edge drill rod is the equipment for deep hole water exploration in hard rock and coal rock in coal mine tunnel, three-edge arc convex edge type gas drainage drill rod is short for three-edge drill rod, and can be divided into taper thread type, hexagonal plug-in type, coal seam gas, also known as coalbed methane, which is a mixture of methane, carbon dioxide and nitrogen escaping from coal and surrounding rock, and gas is a harmful factor in coal production, which pollutes the air.

[0003] The existing three-edge spiral deslagging type gas extraction casing pipe drill rod still has the problem of coal residue blocking the inner pipe during use, which leads to low work efficiency, and the wear degree of the drill rod body cannot be accurately judged, which may cause excessive wear or not fully reach the service life, so a three-edge spiral deslagging type gas extraction casing pipe drill rod is needed to improve the above problems. SUMMARY

[0004] The utility model aims at solving at least one of the technical defects.

[0005] Therefore, one purpose of the utility model is to provide a three-edge spiral deslagging type gas extraction casing pipe drill rod to solve the problems mentioned in the background art and overcome the deficiencies in the prior art.

[0006] In order to achieve the above purpose, one embodiment of the utility model provides a three-edge spiral deslagging type gas extraction casing pipe drill rod, which comprises a drill rod body, a sealing plate and a supporting plate are arranged inside the drill rod body, an electric push rod is arranged on the top of the supporting plate, a connecting plate is arranged on the top of the electric push rod, an inner pipe is arranged on one side of the connecting plate, a fixed pipe is arranged inside the inner pipe, a limiting plate is arranged on the top of the fixed pipe, a screw hole is arranged inside the drill rod body, a fixed screw is arranged inside the screw hole, a baffle is arranged on the outside of the fixed screw, a through hole is arranged inside the baffle, and a mesh hole is arranged inside the inner pipe.

[0007] The utility model is further provided as follows: the sealing plate and the supporting plate are fixedly connected to the inside of the drill rod body, the electric push rod is fixedly connected to the top of the supporting plate, and the connecting plate and the inner pipe are fixedly connected.

[0008] By adopting the above technical scheme, the electric push rod is fixedly connected to the top of the supporting plate, which plays a role in driving the inner pipe to slide.

[0009] The utility model further sets up: the inner tube is connected in the inside of drill rod body, the fixed pipe is fixedly connected with the inner tube, the limit board is connected in the top of drill rod body.

[0010] Through the above technical scheme, the limit board is connected in the top of drill rod body, and the fixed pipe is connected.

[0011] The utility model further sets up: the screw hole is compatible with fixed screw, the fixed screw is connected in the inside of through -hole.

[0012] Through the above technical scheme, the screw hole is compatible with fixed screw, and the fixed baffle is connected.

[0013] The utility model further sets up: the outside of drill rod body is provided with heat insulating coating, the outside of heat insulating coating is provided with red wear -resisting coating, the outside of red wear -resisting coating is provided with yellow wear -resisting coating, the outside of yellow wear -resisting coating is provided with green wear -resisting coating.

[0014] Through the above technical scheme, the outside of drill rod body is provided with heat insulating coating, and the temperature of drill rod body is prevented.

[0015] The utility model has the advantages of:

[0016] 1. The three -angle spiral deslag formula gas extraction casing pipe drill rod, through the use of the cooperation of sealing plate, inner tube and mesh, the effect of extracting gas is achieved, through the cooperation of supporting plate, electric push rod and connecting plate, the effect of driving the inner tube to lift is achieved, through the cooperation of inner tube and fixed tube, the effect of facilitating gas collection is achieved, through the use of the above structure, the position of the mesh can be controlled, and the coal residue outside the mesh can be cleaned through the sealing plate, so that the inner tube is prevented from being blocked, and the working efficiency is ensured.

[0017] 2. The three -angle spiral deslag formula gas extraction casing pipe drill rod, by adding heat insulating coating, the temperature of drill rod body is reduced, and through the cooperation of red wear -resisting coating, yellow wear -resisting coating and green wear -resisting coating, the wear degree of drill rod body can be quickly and accurately judged, so that excessive wear or not reaching the service life is avoided.

[0018] The additional aspects and advantages of the utility model will be partially given in the following description, and some will become obvious from the following description or be understood through the practice of the utility model. DRAWINGS

[0019] The above and / or additional aspects and advantages of the utility model will become apparent and easily understood from the description of embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 is a structural schematic view of the utility model;

[0021] Figure 2 is a structural schematic view of the utility model limiting plate;

[0022] Figure 3 is a structural schematic view of the utility model baffle;

[0023] Figure 4 is a structural schematic view of the utility model inner tube;

[0024] Figure 5 is a structural schematic view of the utility model coating.

[0025] In the figure: 1, drill rod body; 2, sealing plate; 3, support plate; 4, electric push rod; 5, connecting plate; 6, inner tube; 7, fixed tube; 8, limiting plate; 9, screw hole; 10, fixed screw; 11, baffle; 12, through hole; 13, mesh; 14, heat insulation coating; 15, red wear-resistant coating; 16, yellow wear-resistant coating; 17, green wear-resistant coating. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0027] Embodiment one

[0028] Referring to Figures 1 to 4 The utility model discloses a three-edge spiral deslagging type gas extraction casing drill rod, including drill rod body 1, the inside of drill rod body 1 is provided with sealing plate 2 and support plate 3, the top of support plate 3 is provided with electric push rod 4, the top of electric push rod 4 is provided with connecting plate 5, one side of connecting plate 5 is provided with inner tube 6, the inside of inner tube 6 is provided with fixed tube 7, the top of fixed tube 7 is provided with limiting plate 8, the inside of drill rod body 1 is provided with screw hole 9, the inside of screw hole 9 is provided with fixed screw 10, the outside of fixed screw 10 is provided with baffle 11, the inside of baffle 11 is provided with through hole 12, the inside of inner tube 6 is provided with mesh 13, and the sealing plate 2 plays a role in preventing gas leakage in the embodiment, the support plate 3 is installed electric push rod 4, and the electric push rod 4 plays a role in moving the connecting plate 5.

[0029] Referring to Figure 1 With Figure 2The sealing plate 2 and the support plate 3 are fixedly connected to the inside of the drill rod body 1, the electric push rod 4 is fixedly connected to the top of the support plate 3, the connecting plate 5 is fixedly connected with the inner tube 6, in this embodiment, the connecting plate 3 plays a role in driving the inner tube 6 to slide, and the inner tube 6 plays a role in facilitating the flow of gas.

[0030] Referring to Figure 1 With Figure 2 The inner tube 6 is slidably connected to the inside of the drill rod body 1, the fixed tube 7 is fixedly connected with the inner tube 6, and the limiting plate 8 is clamped to the top of the drill rod body 1, in this embodiment, the fixed plate 7 plays a role in facilitating the sliding of the inner tube 6, and the limiting plate 8 plays a role in limiting the pipe 6.

[0031] Referring to Figure 2 With Figure 3 The screw hole 9 is matched with the fixed screw 10, the fixed screw 10 is clamped in the through hole 12, in this embodiment, the screw hole 9 plays a role in facilitating the installation of the fixed screw 10, the fixed screw 10 plays a role in installing the baffle 11, and the through hole 12 plays a role in clamping the fixed screw 10.

[0032] Referring to Figure 5 The outer side of the drill rod body 1 is provided with a heat insulation coating 14, the outer side of the heat insulation coating 14 is provided with a red wear-resistant coating 15, the outer side of the red wear-resistant coating 15 is provided with a yellow wear-resistant coating 16, and the outer side of the yellow wear-resistant coating 16 is provided with a green wear-resistant coating 17, in this embodiment, the heat insulation coating 14 plays a role in preventing the temperature of the drill rod body 1 from being too high, and the red wear-resistant coating 15 indicates the role of reducing the service life of the drill rod body 1.

[0033] The implementation principle of this embodiment is:

[0034] When the air intake decreases, the electric push rod 4 starts to work, the output shaft extends upward, the inner tube 6 is driven by the connecting plate 5 to slide upward in the inside of the drill rod body 1, until the top of the inner tube 6 is in close contact with the limiting plate 8, at this time, the mesh 13 is located between the sealing plate 2 and the support plate 3, and the slag blocked outside the mesh 13 will be blocked by the sealing plate 2 during the upward movement of the mesh 13, so that the slag outside the mesh 13 can be quickly cleaned, and the bottom of the inner tube 6 is in a sealed state, which can effectively prevent gas leakage in cooperation with the sealing plate 2;

[0035] After the slag outside the mesh 13 is cleaned, the output shaft of the electric push rod 4 starts to shrink, and the inner tube 6 is reset under the action of the connecting plate 5, during the movement of the inner tube 6, the inner tube 6 will slide outside the fixed tube 7 to adapt to the inner tube 6 in different positions, when the output shaft of the electric push rod 4 is completely retracted, at this time, the mesh 13 is located at the bottom of the sealing plate 2, at this time, the work can continue;

[0036] The electric push rod 4 is of a prior structure, and a control module is arranged in the electric push rod 4, so that the output shafts of the plurality of electric push rods 4 can be synchronously controlled;

[0037] In the working process of the drill rod, the heat insulation coating 14 can effectively prevent the temperature of the drill rod body 1 from being too high, and the color of the wear-resistant coating can be observed to quickly judge the use condition of the drill rod body 1; the green wear-resistant coating 17 indicates that the drill rod body 1 is in the best state, the yellow wear-resistant coating 16 indicates that the service life of the drill rod body 1 reaches one-third, when the red wear-resistant coating 15 is exposed, it indicates that the service life of the drill rod body 1 has entered the countdown, and when the red wear-resistant coating 15 is hidden, the drill rod body 1 needs to be replaced.

[0038] Compared with the prior art, the utility model has the following beneficial effects:

[0039] Through the cooperation of the sealing plate 2, the inner tube 6 and the mesh hole 13, the function of extracting gas is achieved; through the cooperation of the supporting plate 3, the electric push rod 4 and the connecting plate 5, the function of driving the inner tube 6 to ascend and descend is achieved; through the cooperation of the inner tube 6 and the fixed tube 7, the function of facilitating the collection of gas is achieved; through the use of the above structure, the position of the mesh hole 13 can be controlled, and the coal cinder outside the mesh hole 13 can be cleaned through the sealing plate 2, so that the inner tube 6 can be effectively prevented from being blocked, and the working efficiency is ensured; through the addition of the heat insulation coating 14, the function of reducing the temperature of the drill rod body 1 is achieved; through the cooperation of the red wear-resistant coating 15, the yellow wear-resistant coating 16 and the green wear-resistant coating 17, the wear degree of the drill rod body 1 can be quickly and accurately judged, so that the situation of excessive wear or not reaching the service life is avoided.

[0040] The embodiments of the specific embodiment are the preferred embodiments of the utility model, and do not limit the protection scope of the utility model, so that: equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope of the utility model.

Claims

1. A triangular spiral slag discharge type gas extraction casing drill pipe, characterized in that: The drill rod body (1) includes a sealing plate (2) and a support plate (3) inside the drill rod body (1). An electric actuator (4) is provided on the top of the support plate (3). A connecting plate (5) is provided on the top of the electric actuator (4). An inner tube (6) is provided on one side of the connecting plate (5). A fixing tube (7) is provided inside the inner tube (6). A limit plate (8) is provided on the top of the fixing tube (7). A screw hole (9) is provided inside the drill rod body (1). A fixing screw (10) is provided inside the screw hole (9). A baffle (11) is provided on the outside of the fixing screw (10). A through hole (12) is provided inside the baffle (11). A mesh hole (13) is provided inside the inner tube (6).

2. The triangular spiral slag discharge gas extraction casing drill pipe according to claim 1, characterized in that: The sealing plate (2) and the support plate (3) are both fixedly connected to the inside of the drill rod body (1), the electric push rod (4) is fixedly connected to the top of the support plate (3), and the connecting plate (5) is fixedly connected to the inner tube (6).

3. The triangular spiral slag discharge gas extraction casing drill pipe according to claim 1, characterized in that: The inner tube (6) is slidably connected to the inside of the drill rod body (1), the fixed tube (7) is fixedly connected to the inner tube (6), and the limiting plate (8) is snapped onto the top of the drill rod body (1).

4. The triangular spiral slag discharge gas extraction casing drill pipe according to claim 1, characterized in that: The screw hole (9) is adapted to the fixing screw (10), and the fixing screw (10) is engaged inside the through hole (12).

5. The triangular spiral slag discharge gas extraction casing drill pipe according to claim 1, characterized in that: The outer side of the drill pipe body (1) is provided with a heat insulation coating (14), the outer side of the heat insulation coating (14) is provided with a red wear-resistant coating (15), the outer side of the red wear-resistant coating (15) is provided with a yellow wear-resistant coating (16), and the outer side of the yellow wear-resistant coating (16) is provided with a green wear-resistant coating (17).

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