Gas drill hole sealing structure

Abstract

The utility model discloses a gas drill hole sealing structure, a drill bit is arranged at the left end of a drill rod, a spiral block is installed at the outer end of the drill rod, the gas drill hole sealing structure is characterized by further comprising a first connecting block arranged on the right side of the drill rod, a protective sleeve is arranged on the outer side of the first connecting block, and a rubber pad is installed in the first connecting block; and the sealing assembly is arranged at the right end of the first connecting block, an inflation pipe is installed at the lower end of the connecting cylinder, and a second connecting block is arranged at the right end of the connecting cylinder. According to the gas drilling sealing structure, the sealing assembly is additionally arranged, after the sealing assembly is inflated through the inflation pump, the elastic air bag expands to be attached to the inner wall of the gas drilling pipeline, and compared with the traditional technology, the gas leakage situation is avoided, the drilling sealing performance is improved, meanwhile, a limiting block is tightened, and the sealing effect is good. The gas drilling sealing structure can be quickly assembled on the drilling mechanism conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of gas drilling, in particular to a gas drilling sealing structure. Background Art

[0002] When gas extraction is carried out, a specific drill bit is needed to drill holes for gas extraction. If the connection between the drill bit and the borehole pipe is not sealed during the extraction process, it is very likely that gas will leak from the connection gap, affecting work safety. Therefore, it is very important to design a gas drilling sealing structure, such as:

[0003] The quick-type gas drilling and extraction device with China Rights Publication No. CN111927527B comprises a grouting pipe, a pumping pipe, a connecting assembly, an exhaust slurry return assembly, a slurry outlet assembly and a blasting assembly, the diameters of the above-mentioned assemblies are all 50mm-110mm, the grouting pipe is fixedly installed inside the pumping pipe, the outer surface of the grouting pipe is fixedly sleeved with a first connecting piece, and the outer surface of the grouting pipe is fixedly sleeved with a second connecting piece on one side close to the first connecting piece, a first bracket and a second bracket are fixedly installed on both sides close to the first connecting piece between the grouting pipe and the pumping pipe, and docking sleeves are fixedly installed inside the first bracket and the second bracket.

[0004] However, most of the existing technical solutions have the following defects: it is not convenient to quickly assemble the gas drilling sealing structure on the drilling mechanism, and it is not convenient to seal the gas drilling pipeline. Therefore, the utility model provides a gas drilling sealing structure to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide a gas drilling sealing structure to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solutions: a gas drilling sealing structure, wherein a drill bit is arranged at the left end of the drill rod, and a spiral block is installed at the outer end of the drill rod, characterized in that: it also includes a first connecting block arranged on the right side of the drill rod, and a connecting rod is installed inside the first connecting block, and a limiting block is arranged outside the connecting rod, a protective sleeve is arranged outside the first connecting block, and a rubber pad is installed inside the first connecting block;

[0007] A sealing assembly is arranged at the right end of the first connecting block, and the sealing assembly includes a connecting tube arranged at the right end of the first connecting block, an inflation tube is installed at the lower end of the connecting tube, and an elastic air bag is arranged on the outside of the connecting tube, a limiting frame is installed inside the connecting tube, and an inflation pump is arranged inside the limiting frame, a second connecting block is arranged at the right end of the connecting tube, a connecting block is arranged on the outside of the second connecting block, and a connecting bolt is connected to the inside of the connecting block.

[0008] Preferably, the drill rod is relatively engaged and connected to the first connecting block, and the connecting rod passes through the first connecting block and the drill rod.

[0009] Preferably, the limit block is threadedly connected to the connecting rod, and the limit block is symmetrically arranged up and down about the center line of the connecting rod.

[0010] Preferably, the protective sleeve is relatively engaged and connected with the limiting block and the connecting rod, and the protective sleeve is symmetrically arranged up and down about the center line of the first connecting block.

[0011] Preferably, the connecting tube is relatively closely connected to the inflation tube, and the inner diameter of the connecting tube is smaller than the inner diameter of the elastic airbag.

[0012] Preferably, the limiting frame is relatively snap-fitted and connected to the air pump.

[0013] Preferably, the connecting blocks are arranged at equal intervals on the second connecting block, and the connecting blocks are threadedly connected to the connecting bolts.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the gas drilling sealing structure is equipped with a sealing assembly, so that after the sealing assembly is inflated by an air pump, the elastic airbag expands and fits with the inner wall of the gas drilling pipe. Compared with the traditional technology, it can avoid gas leakage and improve the sealing of the drilling hole. At the same time, tightening the limit block facilitates the rapid assembly of the gas drilling sealing structure and the drilling mechanism. The specific operation is as follows;

[0015] 1. A limit block and a protective sleeve are provided. By tightening the limit blocks at both ends of the connecting rod, the connection between the drill rod and the first connecting block through the connecting rod is more stable. The limit block and the protective sleeve are clamped on the connecting rod so that the protective sleeve protects the limit block, which is convenient for realizing the rapid assembly of the gas drilling sealing structure and the drilling mechanism;

[0016] 2. A rubber pad and a drill rod are provided. The drill rod is engaged with the first connecting block, so that the rubber pad provided inside the first connecting block is connected to the right end interface of the drill rod. After the rubber pad is attached to the inner wall of the drill rod, the connection between the drill rod and the first connecting block is sealed to prevent gas leakage from the connection.

[0017] Furthermore, air is inflated into the elastic airbag through the inflation tube by an air pump. The elastic airbag expands from its original state and gradually fits the inner wall of the drilled pipe to prevent gas leakage inside the pipe, thereby facilitating sealing of the gas drilled pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0019] Figure 2 This is a front view structural diagram of the connection between the drill rod and the spiral block of the utility model;

[0020] Figure 3 This is a schematic diagram of the overall structure of the connection between the inflation tube and the connecting tube of the utility model;

[0021] Figure 4 For this utility model Figure 1 Enlarged structural diagram at A in the middle.

[0022] In the figure: 1. drill rod; 2. drill bit; 3. spiral block; 4. first connecting block; 5. connecting rod; 6. limit block; 7. protective sleeve; 8. rubber pad; 9. sealing assembly; 901. connecting tube; 902. inflation tube; 903. elastic airbag; 10. inflation pump; 11. limit frame; 12. second connecting block; 13. connecting block; 14. connecting bolt. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 The utility model provides a technical solution: a gas drilling sealing structure, a drill bit 2 is arranged at the left end of a drill rod 1, and a spiral block 3 is installed at the outer end of the drill rod 1, characterized in that: it also includes a first connecting block 4 arranged on the right side of the drill rod 1, and a connecting rod 5 is installed inside the first connecting block 4, and a limiting block 6 is arranged outside the connecting rod 5, a protective sleeve 7 is arranged outside the first connecting block 4, and a rubber pad 8 is installed inside the first connecting block 4;

[0025] The sealing assembly 9 is arranged at the right end of the first connecting block 4, and the sealing assembly 9 includes a connecting tube 901 arranged at the right end of the first connecting block 4, an inflation tube 902 is installed at the lower end of the connecting tube 901, and an elastic air bag 903 is arranged on the outside of the connecting tube 901, a limiting frame 11 is installed inside the connecting tube 901, and an inflation pump 10 is arranged inside the limiting frame 11, a second connecting block 12 is arranged at the right end of the connecting tube 901, and a connecting block 13 is arranged on the outside of the second connecting block 12, and a connecting bolt 14 is connected to the inside of the connecting block 13, forming a gas drilling sealing structure.

[0026] like Figure 1 and Figure 2 As shown, the drill rod 1 is relatively engaged with the first connecting block 4, and the connecting rod 5 runs through the first connecting block 4 and the interior of the drill rod 1, the limit block 6 is relatively threadedly connected to the connecting rod 5, and the limit block 6 is symmetrically arranged about the center line of the connecting rod 5, the protective sleeve 7 is relatively engaged with the limit block 6 and the connecting rod 5, and the protective sleeve 7 is symmetrically arranged about the center line of the first connecting block 4, the connecting block 13 is arranged at equal intervals on the second connecting block 12, and the connecting block 13 is relatively threadedly connected to the connecting bolt 14, The rod 1 is engaged with the first connecting block 4, so that the rubber pad 8 arranged inside the first connecting block 4 is connected to the right end interface of the drill rod 1, and the connecting rod 5 is passed through the inside of the drill rod 1 and the first connecting block 4, so that the upper and lower ends of the connecting rod 5 are tightened with the limit blocks 6. The connection between the drill rod 1 and the first connecting block 4 is more stable through the connecting rod 5, and the protective sleeve 7 is engaged with the limit block 6 and the connecting rod 5, so that the protective sleeve 7 protects the limit block 6, which is convenient for realizing the rapid assembly of the gas drilling sealing structure and the drilling mechanism.

[0027] like Figure 1 , Figure 3 and Figure 4 As shown, the connecting tube 901 is relatively fitted and connected with the inflation tube 902, and the inner diameter of the connecting tube 901 is smaller than the inner diameter of the elastic airbag 903, and the limiting frame 11 is relatively engaged and connected with the inflation pump 10. When the connecting bolt 14 is tightened and the drill bit 2 starts drilling, the connecting block 13 outside the second connecting block 12 is connected and reinforced with the connecting plate driven by the motor, and then the inflation pump 10 inside the limiting frame 11 is controlled by an external controller to inflate. The inflation pump 10 inflates the air into the elastic airbag 903 through the inflation tube 902. The elastic airbag 903 expands from its original state and gradually fits with the inner wall of the drilling pipe to avoid gas leakage inside the pipe, so as to facilitate the sealing of the gas drilling pipe. This is the method of using the gas drilling sealing structure.

[0028] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A gas drilling sealing structure, comprising a drill rod (1), a drill bit (2) being arranged at the left end of the drill rod (1), and a spiral block (3) being installed at the outer end of the drill rod (1), characterized in that: It also comprises a first connecting block (4) arranged on the right side of the drill rod (1), a connecting rod (5) being installed inside the first connecting block (4), a limiting block (6) being arranged outside the connecting rod (5), a protective sleeve (7) being arranged outside the first connecting block (4), and a rubber pad (8) being installed inside the first connecting block (4); A sealing assembly (9) is arranged at the right end of the first connecting block (4), and the sealing assembly (9) comprises a connecting tube (901) arranged at the right end of the first connecting block (4), an air filling tube (902) is installed at the lower end of the connecting tube (901), and an elastic air bag (903) is arranged on the outer side of the connecting tube (901), a limiting frame (11) is installed inside the connecting tube (901), and an air pump (10) is arranged inside the limiting frame (11), a second connecting block (12) is arranged at the right end of the connecting tube (901), and a connecting block (13) is arranged on the outer side of the second connecting block (12), and a connecting bolt (14) is connected to the inside of the connecting block (13).

2. A gas drilling sealing structure according to claim 1, characterized in that: The drill rod (1) is relatively engaged and connected to the first connecting block (4), and the connecting rod (5) passes through the first connecting block (4) and the drill rod (1).

3. A gas drilling hole sealing structure according to claim 1, characterized in that: The limit block (6) is threadedly connected to the connecting rod (5), and the limit block (6) is symmetrically arranged up and down about the center line of the connecting rod (5).

4. A gas drilling hole sealing structure according to claim 1, characterized in that: The protective sleeve (7) is relatively engaged and connected to the limiting block (6) and the connecting rod (5), and the protective sleeve (7) is symmetrically arranged up and down about the center line of the first connecting block (4).

5. A gas drilling sealing structure according to claim 1, characterized in that: The connecting tube (901) is relatively closely connected to the inflation tube (902), and the inner diameter of the connecting tube (901) is smaller than the inner diameter of the elastic airbag (903).

6. A gas drilling sealing structure according to claim 1, characterized in that: The limiting frame (11) is relatively engaged and connected with the air pump (10).

7. A gas drilling sealing structure according to claim 1, characterized in that: The connecting blocks (13) are arranged at equal intervals on the second connecting block (12), and the connecting blocks (13) are threadedly connected to the connecting bolts (14).

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