Quick connecting device for drilling

Abstract

The utility model discloses a quick connecting device for drilling, and relates to the technical field of drilling connection. Comprising a pipeline body, a protection mechanism is arranged on the outer surface of the pipeline body, a mounting mechanism is fixedly mounted on the lower surface of the pipeline body, a concave groove is formed in the left side face of the pipeline body, a drilling pipe is connected to the left side face of the pipeline body through internal threads of the concave groove, and a first sealing ring is arranged between the left side face of the drilling pipe and the inner wall of the right side of the concave groove; a locking mechanism is arranged on the outer surface, corresponding to the concave groove, of the pipeline body, an extraction mechanism is installed on the upper surface of the pipeline body, and an observation mechanism is installed on the right side face of the pipeline body in a threaded mode. The quick connecting device and the drilling pipe are connected more firmly and stably, the quick connecting device and the drilling pipe are not prone to being damaged, quick mounting and dismounting are guaranteed, gas tightness is reliable, the quick connecting device and the drilling pipe can be recycled, meanwhile, the visual function is added, the condition in a hole can be observed in real time when gas parameters are observed, and the tail rear cover can be quickly unscrewed for operation.

Description

Technical Field

[0001] This utility model relates to the field of drilling connection technology, specifically a drilling quick connection device. Background Technology

[0002] In the process of drilling and mining in underground coal mines, it is necessary to extract gas through boreholes. A borehole pipe is installed inside the borehole and is connected to the borehole pipe through a quick-connect shaft to extract the gas.

[0003] In existing technologies, threaded screw-tight double-resistance quick connectors are used for underground drilling. Due to the complex and variable underground working environment and numerous uncontrollable factors, the PVC sealing pipes used for borehole sealing and grid connection inevitably suffer thread damage after multiple transfers between the surface and underground to the work site. This renders the currently used quick connectors unusable and the PVC sealing pipes scrapped. Furthermore, the quick connectors in sealed and grid-connected boreholes are affected by uncontrollable external factors such as roadway deformation and external impacts. The weakest threaded connection between the quick connector and the PVC pipe frequently experiences tearing, breakage, and slippage, leading to severe air leakage at the borehole opening and significantly impacting the drilling extraction effect. Using raw rubber tape for wrapping results in poor standardization and short-lasting treatment. Real-time observation of the borehole is impossible, and the entire device must be disassembled for secondary enrichment and drilling operations, which is cumbersome and prone to incomplete sealing and thread damage due to repeated disassembly and reassembly. During the working face recovery operation, the reuse rate of this device is extremely low due to thread damage when recovering the borehole. Utility Model Content

[0004] This invention provides a quick-connect device for drilling to solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drilling quick connection device, comprising a pipe body, a protective mechanism provided on the outer surface of the pipe body, an installation mechanism fixedly installed on the lower surface of the pipe body, a concave groove opened on the left side of the pipe body, a drilling pipe connected to the left side of the pipe body through the concave groove by an internal thread, a first sealing ring provided between the left side of the drilling pipe and the right inner wall of the concave groove, a locking mechanism provided on the outer surface of the pipe body corresponding to the concave groove, a extraction mechanism installed on the upper surface of the pipe body, and an observation mechanism threadedly installed on the right side of the pipe body.

[0006] Furthermore, the protective mechanism includes an insulating coating, a flame-retardant coating, and an anti-corrosion coating, and the outer surface of the pipe body is coated with the insulating coating, the flame-retardant coating, and the anti-corrosion coating in sequence from the inside to the outside.

[0007] Furthermore, the installation mechanism includes a fixing block and mounting holes. The fixing block is fixedly installed on the lower surface of the pipe body, and mounting holes are provided on all four sides of the fixing block.

[0008] Furthermore, the locking mechanism includes a locking cap, a limiting ring, a long notch, an elastic plate, and an anti-slip pad. The locking cap is threaded onto the outer surface of the pipe body, and a limiting ring is fixedly installed on the pipe body at a position corresponding to the locking cap. A long notch is evenly provided circumferentially on the side wall of the pipe body to the left of the limiting ring, and the long notch divides the side wall of the pipe body into multiple elastic plates. An anti-slip pad is fixedly installed on the side of the elastic plate facing the drilled pipe.

[0009] Furthermore, the extraction mechanism includes a quick connector, a sealing cap, and a connecting strip. The quick connector is fixedly installed on the upper side wall of the pipe body, and the sealing cap is threaded onto the upper surface of the quick connector. The sealing cap is connected to the upper surface of the pipe body through the connecting strip.

[0010] Furthermore, the observation mechanism includes a rear cover, a through hole, a viewing baffle, and a second sealing ring. The rear cover is threaded onto the right side of the pipe body. A through hole is provided on the right side wall of the rear cover. A viewing baffle is fixedly installed on the right side wall of the rear cover corresponding to the through hole. A second sealing ring is provided between the inner right side wall of the rear cover and the right side of the pipe body.

[0011] Compared with the prior art, the present invention provides a quick-connection device for drilling, which has the following advantages:

[0012] 1. This drilling quick connection device, through the setting of a protective mechanism, makes the main body of the pipe less susceptible to damage and increases the insulation effect. Then, the concave groove satisfies the threaded connection between the main body of the pipe and the drilled pipe, and the locking mechanism provides a secondary connection between the main body of the pipe and the drilled pipe, making the connection between the quick connection device and the drilled pipe more secure and stable, less prone to damage between the two, ensuring quick installation and disassembly, reliable airtightness, and recyclability.

[0013] 2. This drilling quick connection device increases the visibility of the quick connection shaft by setting an observation mechanism. When observing gas parameters, the situation inside the hole can be observed in real time. When drilling, the tail cover can be quickly unscrewed. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the locking mechanism of this utility model;

[0016] Figure 3 This is a cross-sectional view of the main body of the pipe of this utility model;

[0017] Figure 4 For the present utility model Figure 3Enlarged cross-sectional view at point A in the middle.

[0018] In the diagram: 1. Pipe body; 2. Protective mechanism; 201. Insulating coating; 202. Flame-retardant coating; 203. Anti-corrosion coating; 3. Installation mechanism; 301. Fixing block; 302. Mounting hole; 4. Concave groove; 5. Drilled pipe; 6. First sealing ring; 7. Locking mechanism; 701. Locking cap; 702. Limiting ring; 703. Long strip notch; 704. Elastic plate; 705. Anti-slip pad; 8. Extraction mechanism; 801. Quick connector; 802. Sealing cover; 803. Connecting strip; 9. Observation mechanism; 901. Rear cover; 902. Through hole; 903. Visible baffle; 904. Second sealing ring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-4 This utility model discloses a quick-connect drilling device, including a pipe body 1. A protective mechanism 2 is provided on the outer surface of the pipe body 1. An installation mechanism 3 is fixedly installed on the lower surface of the pipe body 1. A concave groove 4 is opened on the left side of the pipe body 1. A drilling pipe 5 is connected to the left side of the pipe body 1 through the concave groove 4 via an internal thread. A first sealing ring 6 is provided between the left side of the drilling pipe 5 and the right inner wall of the concave groove 4. A locking mechanism 7 is provided on the outer surface of the pipe body 1 corresponding to the concave groove 4. An extraction mechanism 8 is installed on the upper surface of the pipe body 1. An observation mechanism 9 is threadedly installed on the right side of the pipe body 1.

[0021] Specifically, the protective mechanism 2 includes an insulating coating 201, a flame-retardant coating 202, and an anti-corrosion coating 203. The outer surface of the pipe body 1 is coated with the insulating coating 201, the flame-retardant coating 202, and the anti-corrosion coating 203 from the inside to the outside.

[0022] In this embodiment, the insulating coating 201, the flame-retardant coating 202, and the anti-corrosion coating 203 increase the insulation, flame-retardant, and anti-corrosion functions of the outer surface of the pipe body 1, making the pipe body 1 less prone to damage and safe to use.

[0023] Specifically, the installation mechanism 3 includes a fixing block 301 and a mounting hole 302. The fixing block 301 is fixedly installed on the lower surface of the pipe body 1, and mounting holes 302 are provided on all four sides of the fixing block 301.

[0024] In this embodiment, the fixing block 301 and the mounting hole 302 facilitate the installation and fixing of the pipe body 1.

[0025] Specifically, the locking mechanism 7 includes a locking cap 701, a limiting ring 702, a long notch 703, an elastic plate 704, and an anti-slip pad 705. The locking cap 701 is threaded onto the outer surface of the pipe body 1, and the limiting ring 702 is fixedly installed on the pipe body 1 at a position corresponding to the locking cap 701. The long notch 703 is evenly provided circumferentially on the side wall of the pipe body 1 to the left of the limiting ring 702, and the long notch 703 divides the side wall of the pipe body 1 into multiple elastic plates 704. The anti-slip pad 705 is fixedly installed on the side of the elastic plate 704 facing the drilled pipe 5.

[0026] In this embodiment, the locking cap 701 is threaded onto the outer surface of the elastic plate 704, so that the elastic plate 704 is locked onto the outer surface of the drilled pipe 5 by the anti-slip pad 705, thereby achieving the effect of locking and fixing the pipe body 1 and the drilled pipe 5 again. The limiting ring 702 adds the limiting function of the locking cap 701, and the elongated notch 703 makes the pipe body 1 form the elastic plate 704.

[0027] Specifically, the extraction mechanism 8 includes a quick connector 801, a sealing cap 802, and a connecting strip 803. The quick connector 801 is fixedly installed on the upper side wall of the pipe body 1. The sealing cap 802 is threaded onto the upper surface of the quick connector 801. The sealing cap 802 is connected to the upper surface of the pipe body 1 through the connecting strip 803.

[0028] In this embodiment, the sealing cap 802 is easy to open and connects to the quick connector 801 and the extraction tube. The connecting strip 803 adds the connection function of the sealing cap 802, making the sealing cap 802 less likely to fall off or be lost.

[0029] Specifically, the observation mechanism 9 includes a rear cover 901, a through hole 902, a viewing baffle 903, and a second sealing ring 904. The rear cover 901 is threaded onto the right side of the pipe body 1. The through hole 902 is provided on the right side wall of the rear cover 901. The viewing baffle 903 is fixedly installed on the right side wall of the rear cover 901 corresponding to the through hole 902. The second sealing ring 904 is provided between the inner right side wall of the rear cover 901 and the right side of the pipe body 1.

[0030] In this embodiment, the borehole can be viewed through the through hole 902 and the viewing baffle 903 on the rear cover 901, allowing real-time observation of the borehole's condition. Furthermore, opening the rear cover 901 allows for borehole cleaning operations.

[0031] In use, the drilled pipe 5 is threaded into the pipe body 1 through the concave groove 4, so that the right side of the drilled pipe 5 fits against the first sealing ring 6. Then, the locking cap 701 in the locking mechanism 7 is threaded onto the outer surface of the elastic plate 704. The locking cap 701 tightens the elastic plate 704, so that the elastic plate 704 is locked onto the outer surface of the drilled pipe 5 through the anti-slip pad 705. This achieves the effect of locking and fixing the pipe body 1 and the drilled pipe 5 again, making the connection between the pipe body 1 and the drilled pipe 5 more secure, with a good sealing effect, and less prone to damage. It also ensures quick installation and disassembly. It has reliable airtightness and can be recycled and reused. Through the through hole 902 and the visual baffle 903 on the rear cover 901 of the observation mechanism 9, the borehole can be viewed through the main body of the pipe, which increases the visibility of the quick-connect shaft. When observing gas parameters, the situation inside the hole can be observed in real time. When drilling, the rear cover 901 can be quickly unscrewed. The insulation coating 201, flame retardant coating 202 and anti-corrosion coating 203 in the protective mechanism 2 increase the insulation, flame retardant and anti-corrosion functions of the outer surface of the main body of the pipe, making the main body of the pipe less prone to damage and safe to use.

[0032] In summary, this quick-connect drilling device makes the connection between the quick-connect device and the drilling pipe 5 more secure and stable, and the two are less likely to be damaged. It ensures quick installation and disassembly, reliable airtightness, and can be recycled and reused. At the same time, it adds a visual function, allowing real-time observation of the hole while monitoring gas parameters. During the drilling operation, the tail cover 901 can be quickly unscrewed.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-connect device for drilling, comprising a pipe body (1), characterized in that: The outer surface of the pipe body (1) is provided with a protective mechanism (2), the lower surface of the pipe body (1) is fixedly installed with an installation mechanism (3), the left side of the pipe body (1) is provided with a concave groove (4), the left side of the pipe body (1) is connected to a drill pipe (5) through the internal thread of the concave groove (4), a first sealing ring (6) is provided between the left side of the drill pipe (5) and the right inner wall of the concave groove (4), a locking mechanism (7) is provided on the outer surface of the pipe body (1) corresponding to the concave groove (4), an extraction mechanism (8) is installed on the upper surface of the pipe body (1), and an observation mechanism (9) is threaded on the right side of the pipe body (1).

2. The drilling quick connection device according to claim 1, characterized in that: The protective mechanism (2) includes an insulating coating (201), a flame-retardant coating (202) and an anti-corrosion coating (203). The outer surface of the pipe body (1) is coated with an insulating coating (201), a flame-retardant coating (202) and an anti-corrosion coating (203) from the inside to the outside.

3. The drilling quick connection device according to claim 1, characterized in that: The installation mechanism (3) includes a fixing block (301) and a mounting hole (302). The fixing block (301) is fixedly installed on the lower surface of the pipe body (1). Mounting holes (302) are provided on all four sides of the fixing block (301).

4. The drilling quick connection device according to claim 1, characterized in that: The locking mechanism (7) includes a locking cap (701), a limiting ring (702), a long notch (703), an elastic plate (704), and an anti-slip pad (705). The locking cap (701) is threaded onto the outer surface of the pipe body (1), and a limiting ring (702) is fixedly installed on the pipe body (1) at a position corresponding to the locking cap (701). A long notch (703) is evenly opened along the circumferential direction on the side wall of the pipe body (1) to the left of the limiting ring (702), and the long notch (703) divides the side wall of the pipe body (1) into multiple elastic plates (704). An anti-slip pad (705) is fixedly installed on the side of the elastic plate (704) facing the drill pipe (5).

5. The drilling quick connection device according to claim 1, characterized in that: The extraction mechanism (8) includes a quick connector (801), a sealing cap (802), and a connecting strip (803). The quick connector (801) is fixedly installed on the upper side wall of the pipe body (1). The sealing cap (802) is threaded on the upper surface of the quick connector (801). The sealing cap (802) is connected to the upper surface of the pipe body (1) through the connecting strip (803).

6. The drilling quick connection device according to claim 1, characterized in that: The observation mechanism (9) includes a rear cover (901), a through hole (902), a viewing baffle (903), and a second sealing ring (904). The rear cover (901) is threaded onto the right side of the pipe body (1). A through hole (902) is provided on the right side wall of the rear cover (901). A viewing baffle (903) is fixedly installed on the right side wall of the rear cover (901) corresponding to the through hole (902). A second sealing ring (904) is provided between the inner right side wall of the rear cover (901) and the right side of the pipe body (1).

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