A standardized quick-connect elastic post sealing device and sealing method

Abstract

This invention discloses a standardized quick-connect elastic column sealing device and sealing method, belonging to the field of coal mine gas extraction technology. The sealing device includes an extraction pipe unit, inlet and outlet pipes, a clamping strip, an elastic bladder, an elastic column, and ball valves. The extraction pipe unit uses a quick-connect sealing connection and can be freely assembled according to the borehole length; the inlet and outlet pipes form a liquid / gas injection channel through a male-female plug-in connection; the elastic bladder is fixed to the outer wall of the extraction pipe by the clamping strip, and the outer wall has an integrally formed elastic column; the ball valve is fixed to the bottom and orifice ends of the extraction pipe, and the internal valve core is rotated by turning the handle to control liquid / gas injection, pressure holding, and liquid / gas release. During sealing, a high-pressure medium is injected to expand the elastic bladder, and the elastic column presses against the borehole wall to form a multi-point seal; after extraction, the pressure is released to shrink the elastic bladder, allowing the sealing device to be removed and reused as a whole. This invention solves the problems of traditional sealing devices, such as single-use, fixed length, and easy breakage of the bladder.

Description

Technical Field

[0001] This invention belongs to the field of sealing technology for coal mine gas extraction boreholes, specifically relating to a standardized quick-insertion elastic column sealer and sealing method. Background Technology

[0002] In coal mine gas drainage projects, the sealing performance, adaptability, and ease of operation of borehole sealing devices are crucial for ensuring gas drainage efficiency and underground construction safety. Significant differences exist in coal seam borehole depths, and underground working conditions are complex and involve frequent vibrations, placing stringent requirements on the structural design and performance of sealing devices.

[0003] Existing gas drainage borehole sealing devices and sealing methods still have many technical shortcomings in practical applications: existing sealing device pipelines mostly adopt an integral fixed-length structure, which cannot flexibly adjust the specifications according to the actual depth of the coal seam borehole. Custom sealing devices need to be customized for boreholes of different depths, which greatly increases the equipment procurement cost and the difficulty of subsequent management. Moreover, the adaptability of on-site assembly is poor, making it difficult to match the complex downhole drilling conditions. Traditional sealing devices mostly adopt the grouting solidification sealing mode, which is a single-use product. After sealing, the device is left in the hole and cannot be removed, resulting in high material consumption.

[0004] To address the aforementioned issues, while some research and development efforts have been made on recyclable borehole sealers, several problems remain to be solved: the sealing structure design at the unit connection points is unreasonable, resulting in poor sealing performance and failing to meet the high-pressure sealing requirements underground; the sealer body is damaged due to pressure and friction from the borehole wall. Therefore, there is an urgent need to develop a gas drainage borehole sealer and sealing method that allows for rapid assembly, reliable sealing performance, flexible adaptation to boreholes of different depths, pressure relief and recovery, and recyclability. This would overcome the shortcomings of existing technologies, improve the overall safety and efficiency of coal mine gas drainage, and achieve green and efficient drainage. Summary of the Invention

[0005] The purpose of this invention is to provide a standardized quick-connect elastic column sealing device and sealing method that is simple in structure, quick to assemble, adjustable in length, reliable in sealing, and safe to remove. Through technologies such as quick-connect self-locking connection of extraction tube, male and female plug-in connection of inlet and outlet tubes, expansion and sealing of the elastic bladder by liquid and gas injection, pressure holding and media extraction controlled by ball valve, retractable elastic bladder, and protective sealing by elastic column, this invention effectively solves the technical problems of traditional sealing devices, such as single use, fixed length, easy breakage of bladder, and poor sealing performance of irregular hole walls.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a standardized quick-insertion elastic column sealing device, comprising a sampling tube unit (2), an inlet and outlet tube (1), a clamping strip (3), an elastic bladder (5), an elastic column (4), and a ball valve (6); The extraction tube unit (2) is a multi-section standardized unit structure. Adjacent extraction tube units (2) are connected by quick-connect sealing and can be freely assembled according to the borehole length. The inlet and outlet pipe (1) is arranged inside the extraction pipe (2) along the pipe wall. The inlet and outlet pipe (1) and the extraction pipe (2) are coaxially corresponding to each other with an outlet hole. The outlet hole is connected to the inside of the elastic bladder (5). The two ends of the inlet and outlet pipe (1) are connected end to end by a male and female plug-in structure to form a continuous liquid / gas injection channel. The elastic bladder (5) is fixed to the outer wall of the extraction pipe unit (2) by a clamping strip (3) for liquid / gas expansion to achieve borehole annular sealing; The elastic column (4) is uniformly integrally formed on the outer wall of the elastic bladder (5). After liquid / gas injection, it expands with the elastic bladder (5) and presses against the hole wall, forming a multi-point compression seal and protecting the elastic bladder (5). The ball valve (6) is rigidly fixed to the bottom end and the opening end of the extraction pipe (2) respectively, forming an integrated structure with the extraction pipe (2). By rotating the handle (7) of the ball valve (6), the internal valve core (8) is rotated, and the liquid / gas injection, pressure holding and liquid / gas release of the elastic bladder (5) are uniformly controlled.

[0007] Furthermore, the extraction pipe (2) provides a core channel for gas extraction. Each section has a fixed specification and can be quickly connected in series to adapt to boreholes of different depths. At the same time, it provides an installation carrier for the inlet and outlet pipes (1) and the elastic bladder (5). The overall structure can adapt to the small deformation of the borehole and avoid damage caused by rock strata.

[0008] Furthermore, the inlet and outlet pipe (1) is a flexible pipe, with a single section length matching the extraction pipe unit (2). Multiple sections of the inlet and outlet pipe (1) are connected end to end through male and female plug-in connection to form a continuous and sealed medium passage.

[0009] Furthermore, the clamping strip (3) is a stainless steel clamping structure, which fits tightly against the outer wall of the extraction pipe unit (2) after being tightened, to prevent the elastic bladder (5) from shifting or falling off under high pressure.

[0010] Furthermore, the elastic bladder (5) is tightly attached to the outer wall of the extraction tube (2) when it is not injected with liquid / gas. After being injected with liquid / gas, it expands to seal the borehole. After depressurization, it can elastically contract to restore its original shape.

[0011] Furthermore, after the elastic column (4) is injected with liquid / gas, it expands with the elastic bladder (5) and presses against the hole wall, especially adapting to irregular hole walls to form a multi-point compression seal; after depressurization, it contracts and resets under its own elasticity, restoring its original size.

[0012] Furthermore, the ball valve (6) adopts a mine-use high-pressure explosion-proof structure. The bottom ball valve (6) is used to seal the end of the liquid injection / gas channel, and the orifice ball valve (6) is used to control the three working states of liquid injection / gas, pressure holding and liquid / gas release.

[0013] Furthermore, the number of extraction pipe units (2) is matched with the drilling depth. For each additional extraction pipe unit (2), an additional inlet / outlet pipe (1) is added and connected by insertion.

[0014] A sealing method for a standardized quick-connect elastic post sealing device, implemented based on the aforementioned standardized quick-connect elastic post sealing device, includes the following steps: (1) Assemble the standardized quick-connect elastic post sealing device and install and combine the components according to the connection relationship; (2) The borehole is sealed by injecting liquid / gas through the inlet / outlet pipe (1) and maintaining pressure through the ball valve (6). After the extraction operation is completed, the device is recovered by releasing pressure through the ball valve (6), releasing liquid / gas through the inlet / outlet pipe (1), and shrinking the elastic bladder (5).

[0015] The specific operation process of step (1) is as follows: determine the number of extraction pipe units (2) according to the drilling depth, and assemble the extraction pipes (2) in sequence by quick-connect connection; connect the corresponding number of inlet and outlet pipes (1) end to end through the male and female plug-in structure at both ends to form a complete liquid injection / gas passage; ensure that the outlet holes opened coaxially with the pipe walls of the inlet and outlet pipes (1) and the extraction pipes (2) are connected to the inside of the elastic bladder (5); send the assembled sealing device into the designated position of the drilling hole; The specific operation process of step (2) is as follows: First, by rotating the handle (7) to drive the valve core (8) to rotate, the bottom ball valve (6) is closed, and the ball valves (6) from the bottom of the hole to the orifice are opened one by one; start the liquid / gas injection equipment and connect it to the orifice end of the inlet / outlet pipe (1), and the high-pressure liquid / gas medium is injected into the elastic bladder (5) through the inlet / outlet pipe (1) and the outlet hole; after being closed and limited by the bottom ball valve (6), the elastic bladder (5) expands and drives the outer wall elastic column (4) to press against the borehole wall, and the elastic column (4) squeezes against each other to form a strong Seal the hole; after the injection / gas pressure reaches the preset sealing pressure, turn the handle (7) to drive the valve core (8) to rotate and control the closing of the orifice ball valve (6) to achieve pressure sealing, and then start the gas extraction operation; after the extraction operation is completed, turn the handle (7) to drive the valve core (8) to rotate and control the opening of the orifice ball valve (6) to extract and empty the medium in the elastic bladder (5) and the inlet / outlet pipe (1); the elastic bladder (5) and the elastic column (4) shrink and reset synchronously, and the entire sealing device is taken out from the borehole.

[0016] Using the above technical solution, the specific functions of each component in this invention are as follows: Extraction pipe unit (2): Provides the core channel for gas extraction. It adopts a modular tubular structure with fixed specifications for each section. It can be flexibly connected in series through quick insertion to adapt to boreholes of different depths. At the same time, it provides an installation carrier for the inlet and outlet pipes (1) and the elastic bladder (5). The overall structure can adapt to the small deformation of the borehole, avoid damage from rock strata compression, and ensure the long-term smooth flow of the extraction channel.

[0017] Inlet / outlet pipe (1): This is a high-pressure liquid / gas delivery channel, employing a modular tubular structure with a single section length matching that of the extraction pipe unit (2). The two ends are connected via a male-female plug-in structure, forming a continuous, sealed medium passage. An outlet hole is coaxially corresponding to the wall of the extraction pipe (2), precisely guiding the high-pressure liquid / gas into the elastic capsule (5). The multi-section plug-in structure can be extended synchronously in series with the extraction pipe (2), adapting to boreholes of different depths.

[0018] Tightening strip (3): It is a stainless steel clamp structure used to fasten the elastic bladder (5) to the outer wall of the extraction pipe (2). After fastening, it fits tightly against the outer wall of the extraction pipe unit (2) to prevent the elastic bladder (5) from shifting or falling off during high-pressure liquid / gas injection, thus ensuring the reliability of the seal.

[0019] Elastic capsule (5): This is the core component for sealing the borehole, and it is fitted and fixed to the outer wall of the extraction tube unit (2). When no liquid / gas is injected, it fits tightly against the outer wall of the extraction tube (2), making it easy for the sealing device to be sent into the borehole; after the high-pressure medium is injected, it expands, driving the elastic column (4) to squeeze the borehole wall synchronously; after the pressure is released, it contracts and resets under its own elasticity, restoring the initial size, ensuring that the sealing device can be smoothly removed from the borehole.

[0020] Elastic columns (4): Several uniformly integrally formed on the outer wall of the elastic bladder (5). After liquid / gas injection, they expand with the elastic bladder (5) and press against the hole wall. They are especially suitable for irregular hole walls to form multi-point compression seals, significantly improving the sealing effect. At the same time, they protect the elastic bladder (5) and prevent damage caused by scratching the hole wall. After depressurization, they shrink and reset under their own elasticity, restoring their original size.

[0021] Ball valve (6): This is the core control unit for the liquid / gas injection port and the device removal. It consists of a valve body, a valve core (8), and a handle (7). It is installed at the bottom and top of the extraction pipe (2), forming an integrated structure with the extraction pipe (2) to ensure structural stability under high-pressure liquid / gas injection conditions. The valve core (8) is located inside the valve body and is connected to the inlet and outlet pipes (1). The handle (7) is fixed to the extended end of the valve core (8). By rotating the handle (7), the valve core (8) is rotated to control the opening and closing of the pipeline, realizing three working states: liquid / gas injection, pressure holding, and extraction.

[0022] Compared with the prior art, the present invention has the following advantages: 1. High adaptability and wide range of applications: Adopting a modular and standardized design, both the extraction pipe and the inlet and outlet pipe are fixed-specification single-section units, which can be flexibly connected and combined according to the drilling depth. There is no need to customize special equipment for different hole depths. It has strong versatility and can be adapted to coal mine gas extraction boreholes of different depths and diameters.

[0023] 2. Convenient assembly and high construction efficiency: Utilizing a quick-connect structure with a self-locking seal, it eliminates the need for cumbersome operations such as threading and flanges, enabling the extraction pipe to lock and seal instantly upon insertion. The media delivery pipe uses a male-female plug-in connection, allowing for rapid connection without tools, significantly improving downhole assembly efficiency and reducing the intensity of construction in confined spaces.

[0024] 3. Reliable sealing and outstanding adaptability: Utilizing a composite sealing structure of an elastic bladder and elastic column, the elastic column exerts multi-point pressure on the borehole wall after liquid / gas expansion, achieving stable sealing even in fractured surrounding rock and irregularly shaped boreholes. Combined with a quick-release seal and ball valve pressure maintenance, the overall seal is reliable, effectively preventing air leakage and ensuring the concentration and stability of gas extraction.

[0025] 4. Recyclable and reusable with good economic benefits: After the extraction operation is completed, the medium is extracted by depressurizing through the ball valve. The elastic bladder and elastic column shrink and reset synchronously, and the entire sealing device can be removed from the borehole. After inspection and maintenance, it can be reused, which greatly reduces material consumption and construction costs.

[0026] 5. Stable structure and long service life: The elastic column effectively protects the elastic bladder, preventing scratches and damage to the borehole wall. The overall structure can adapt to minor deformations in the borehole, avoiding damage from rock strata compression, thus extending the service life of the borehole sealer. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the single-section sealing device structure of the present invention; Figure 2 This is a schematic diagram of the connection structure of the two-section sealing device of the present invention; Figure 3 This is a schematic diagram of the quick-connect splicing method of the present invention; Figure 4 This is a schematic diagram of the hole arrangement of the present invention; Figure 5 This is a schematic cross-sectional view of the ball valve of the present invention when it is open; Figure 6 This is a schematic cross-sectional view of the ball valve of the present invention when it is closed; Figure 7 This is a schematic diagram of the drilling and sealing process in Example 1. Figure 8 This is a schematic diagram of the hole sealing process after drilling in Example 1; Figure 9 This is a schematic diagram of the hole before sealing in Example 2; Figure 10This is a cross-sectional view (AA) before drilling and sealing in Example 2; Figure 11 This is a schematic diagram of the hole sealing process after drilling in Example 2; Figure 12 This is a cross-sectional view (AA) after drilling and sealing in Example 2.

[0028] Explanation of reference numerals in the attached figures: 1-Inlet / outlet pipe, 2-Extraction pipe unit, 3-Clamping strip, 4-Elastic column, 5-Elastic bladder, 6-Ball valve (including 7-Handle, 8-Valve core). Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-12 The following embodiments of the present invention are further illustrated. These embodiments are merely illustrative of the technical solutions of the present invention and are not intended to limit it. The complete operation flow of the sealing method described in this invention corresponds to the specific limitations of claim 10.

[0030] Example 1: Application of regular drilling and sealing like Figure 1 As shown, the standardized quick-connect elastic column sealing device single-section unit structure described in this embodiment includes an inlet / outlet pipe (1), an extraction pipe unit (2), a clamping strip (3), an elastic column (4), an elastic bladder (5), a ball valve (6), a handle (7), and a valve core (8).

[0031] like Figure 2 As shown, the extraction pipe unit (2) is a single-section tubular structure. Adjacent extraction pipe units are connected by quick-connect sealing and can be freely assembled according to the borehole length. Figure 3 As shown, the quick-connect fitting can achieve axial self-locking and radial sealing, effectively preventing coal dust and water from entering the extraction channel in the borehole, and providing structural support and gas extraction channel for the overall device.

[0032] like Figure 4 As shown, the inlet and outlet pipes (1) are located inside the extraction pipe (2) and arranged along the pipe wall. The inlet and outlet pipes (1) and the extraction pipe (2) are coaxially corresponding to each other with an outlet hole, which is connected to the inside of the elastic bladder (5). The two ends of the inlet and outlet pipes (1) adopt a male and female plug-in structure, which can realize the connection of multiple sections end to end, forming a continuous and sealed liquid injection / gas channel to ensure stable delivery of high pressure medium.

[0033] The elastic bladder (5) is fastened to the outer wall of the extraction pipe (2) by a clamping strip (3). Several elastic columns (4) are uniformly arranged on the outer wall of the elastic bladder (5). In the uninjected state, the elastic bladder (5) and the elastic columns (4) are tightly attached to the outer wall of the extraction pipe (2), which facilitates the insertion of the sealing device into the borehole. After injection of liquid / gas, the elastic bladder (5) expands and drives the elastic columns (4) to press against the borehole wall simultaneously. The elastic columns (4) squeeze each other to form a multi-point dense seal, which at the same time protects the elastic bladder (5) and prevents the borehole wall from being scratched and damaged. After depressurization, the elastic bladder (5) and the elastic columns (4) shrink and reset synchronously under their own elasticity.

[0034] The ball valve (6) is rigidly fixed to the bottom and orifice ends of the extraction pipe (2), forming an integrated structure with the extraction pipe (2) to ensure structural stability under high-pressure liquid / gas injection conditions. The ball valve (6) consists of a handle (7) and a valve core (8), as shown in the figure. Figure 5 As shown, when the handle (7) rotates the valve core (8) to the open position, the medium can flow freely; as Figure 6 As shown, when the handle (7) drives the valve core (8) to rotate to the closed position, the pipeline is completely closed. By rotating the handle (7) to drive the valve core (8) to rotate, the liquid / gas injection, pressure holding and medium extraction can be controlled in a unified manner, which is simple and reliable to operate.

[0035] The standardized quick-connect elastic post sealing method based on this embodiment has the following operation procedure: Assembly stage: Determine the number of extraction pipe units (2) according to the drilling depth, and assemble the extraction pipes (2) in sequence by quick-connect connection; connect the corresponding number of inlet and outlet pipes (1) end to end through the male and female plug-in structure at both ends to form a complete liquid injection / gas passage; ensure that the outlet holes opened coaxially with the pipe walls of the inlet and outlet pipes (1) and the extraction pipes (2) are connected to the inside of the elastic bladder (5); send the assembled sealing device into the designated position of the drilling hole.

[0036] Sealing and recovery stage: First, rotate the handle (7) to drive the valve core (8) to rotate and control the bottom ball valve (6) to close, and the ball valves (6) from the bottom of the hole to the orifice to open one by one; start the liquid / gas injection equipment and connect it to the orifice end of the inlet / outlet pipe (1), and the high-pressure liquid / gas medium is injected into the elastic bladder (5) through the inlet / outlet pipe (1) and the outlet hole; after being closed and limited by the bottom ball valve (6), the elastic bladder (5) expands and drives the outer wall elastic column (4) to press against the borehole wall, and the elastic columns (4) squeeze each other to form a reinforced seal; such as Figure 7 The image shows the initial state of the sealing device inside the borehole before sealing; after the injection / gas pressure reaches the preset sealing pressure, the valve core (8) is rotated by turning the handle (7) to control the closing of the orifice ball valve (6), thus achieving pressure-holding sealing. Figure 8The image shows the state of the elastic bladder after sealing the hole, followed by the start of gas extraction. After the extraction is completed, the valve core (8) is rotated by turning the handle (7) to open the orifice ball valve (6) and extract the medium from the elastic bladder (5) and the inlet / outlet pipe (1). The elastic bladder (5) and the elastic column (4) retract synchronously and reset, and the entire sealing device is removed from the borehole.

[0037] Example 2: Application of sealing irregular drill holes This embodiment describes an application under irregular drilling conditions. Unlike Embodiment 1, this embodiment focuses on sealing boreholes with irregular walls, where the elastic column structure provides a more pronounced sealing enhancement. It still employs a two-section unit series combination structure to meet the sealing requirements of medium-to-long depth boreholes.

[0038] The standardized quick-connect elastic column sealing device described in this embodiment has the same structure as that in Embodiment 1, including inlet / outlet pipe (1), extraction pipe unit (2), clamping strip (3), elastic column (4), elastic bladder (5), ball valve (6), handle (7), and valve core (8).

[0039] The standardized quick-connect elastic post sealing method in this embodiment follows the same assembly stage operation as in Embodiment 1. Figure 9 The image shows the overall state of the irregularly drilled hole before sealing, as shown below. Figure 10 The image shown is a cross-sectional view (AA) before sealing. It can be seen that the hole wall is obviously uneven and there are multiple gaps between the sealing device and the hole wall.

[0040] During the sealing and recovery phase, after the high-pressure liquid / gas medium is injected into the elastic bladder (5), the elastic bladder (5) expands, causing the outer wall elastic column (4) to press against the irregular borehole wall. Because the elastic column (4) has good elasticity and deformation capacity, it can adapt to the unevenness of the borehole wall, forming a multi-point compression seal, effectively filling the gap between the irregular borehole wall and the elastic bladder (5). Simultaneously, the elastic column (4) directly contacts the borehole wall, avoiding direct friction between the elastic bladder (5) and sharp borehole wall protrusions, thus providing effective protection for the elastic bladder (5). Figure 11 The image shows the overall state after sealing irregularly drilled holes, as shown below. Figure 12 The image shown is a cross-sectional view (AA) after sealing, demonstrating that the elastic column has completely filled the gap in the hole wall, forming a reliable seal. The remaining operating steps are exactly the same as in Example 1.

[0041] The above embodiments are only used to illustrate and not limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A standardized, quick-plug, resilient, columnar hole sealer, characterized by: It includes a sampling pipe unit (2), an inlet and outlet pipe (1), a clamping bar (3), an elastic bladder (5), an elastic column (4), and a ball valve (6); The extraction tube unit (2) is a multi-section standardized unit structure. Adjacent extraction tube units (2) are connected by quick-connect sealing and can be freely assembled according to the borehole length. The inlet and outlet pipe (1) is arranged inside the extraction pipe (2) along the pipe wall. The inlet and outlet pipe (1) and the extraction pipe (2) are coaxially corresponding to each other with an outlet hole. The outlet hole is connected to the inside of the elastic bladder (5). The two ends of the inlet and outlet pipe (1) are connected end to end by a male and female plug-in structure to form a continuous liquid / gas injection channel. The elastic bladder (5) is fixed to the outer wall of the extraction pipe unit (2) by a clamping strip (3) for liquid / gas expansion to achieve borehole annular sealing; The elastic column (4) is uniformly integrally formed on the outer wall of the elastic bladder (5). After liquid / gas injection, it expands with the elastic bladder (5) and presses against the hole wall, forming a multi-point compression seal and protecting the elastic bladder (5). The ball valve (6) is rigidly fixed to the bottom end and the opening end of the extraction pipe (2) respectively, forming an integrated structure with the extraction pipe (2). By rotating the handle (7) of the ball valve (6), the internal valve core (8) is rotated, and the liquid / gas injection, pressure holding and liquid / gas release of the elastic bladder (5) are uniformly controlled.

2. The standardized fast plug elastomeric post hole sealer according to claim 1, wherein: The extraction pipe (2) provides a core channel for gas extraction. Each section has a fixed specification and can be quickly connected in series to adapt to boreholes of different depths. At the same time, it provides an installation carrier for the inlet and outlet pipes (1) and the elastic bladder (5). The overall structure can adapt to the small deformation of the borehole and avoid damage caused by rock strata.

3. The standardized fast plug elastomeric post hole seal of claim 1, wherein: The inlet and outlet pipe (1) is a flexible pipe, with a single section length matching the extraction pipe unit (2). Multiple sections of the inlet and outlet pipe (1) are connected end to end through male and female plug-in connection to form a continuous and sealed medium passage.

4. The standardized fast plug elastomeric post hole sealer according to claim 1, wherein: The clamping strip (3) is a stainless steel clamping structure. After being tightened, it fits tightly against the outer wall of the extraction pipe unit (2) to prevent the elastic bladder (5) from shifting or falling off under high pressure.

5. The standardized fast plug elastomeric post hole seal of claim 1, wherein: When the elastic capsule (5) is not injected with liquid / gas, it adheres tightly to the outer wall of the extraction tube (2). After being injected with liquid / gas, it expands to seal the borehole. After depressurization, it can elastically contract to restore its original shape.

6. The standardized fast plug elastomeric post hole sealer according to claim 1, wherein: After the elastic column (4) is injected with liquid / gas, it expands with the elastic bladder (5) and presses against the hole wall, especially adapting to irregular hole walls to form a multi-point compression seal; after depressurization, it contracts and resets under its own elasticity, restoring its original size.

7. The standardized fast plug elastomeric post hole sealer according to claim 1, wherein: The ball valve (6) adopts a mine-use high-pressure explosion-proof structure. The bottom ball valve (6) is used to seal the end of the liquid injection / gas channel, and the orifice ball valve (6) is used to control the three working states of liquid injection / gas, pressure holding and liquid / gas release.

8. The standardized fast plug elastomeric post hole sealer according to claim 1, wherein: The number of extraction pipe units (2) is matched with the drilling depth. For each additional extraction pipe unit (2), an additional inlet / outlet pipe (1) is added and connected by insertion.

9. A method of sealing a hole with a standardized, quick- insert, elastic, columnar hole sealer, characterized in that: The implementation of the standardized quick-connect elastic post sealing device based on any one of claims 1 to 8 includes the following steps: (1) Assemble the standardized quick-connect elastic post sealing device and install and combine the components according to the connection relationship; (2) The borehole is sealed by injecting liquid / gas through the inlet / outlet pipe (1) and maintaining pressure through the ball valve (6). After the extraction operation is completed, the device is recovered by releasing pressure through the ball valve (6), releasing liquid / gas through the inlet / outlet pipe (1), and shrinking the elastic bladder (5).

10. The method of sealing a hole with a standardized fast plug elastomeric spooler according to claim 9, characterized in that: The specific operation process of step (1) is as follows: determine the number of extraction pipe units (2) according to the drilling depth, and assemble the extraction pipes (2) in sequence by quick-connect connection; connect the corresponding number of inlet and outlet pipes (1) end to end through the male and female plug-in structure at both ends to form a complete liquid injection / gas passage; ensure that the outlet holes opened coaxially with the pipe walls of the inlet and outlet pipes (1) and the extraction pipes (2) are connected to the inside of the elastic bladder (5); send the assembled sealing device into the designated position of the drilling hole; The specific operation process of step (2) is as follows: First, by rotating the handle (7) to drive the valve core (8) to rotate, the bottom ball valve (6) is closed, and the ball valves (6) from the bottom of the hole to the orifice are opened one by one; start the liquid / gas injection equipment and connect it to the orifice end of the inlet / outlet pipe (1), and the high-pressure liquid / gas medium is injected into the elastic bladder (5) through the inlet / outlet pipe (1) and the outlet hole; after being closed and limited by the bottom ball valve (6), the elastic bladder (5) expands and drives the outer wall elastic column (4) to press against the borehole wall, and the elastic column (4) squeezes against each other to form a strong Seal the hole; after the injection / gas pressure reaches the preset sealing pressure, turn the handle (7) to drive the valve core (8) to rotate and control the closing of the orifice ball valve (6) to achieve pressure sealing, and then start the gas extraction operation; after the extraction operation is completed, turn the handle (7) to drive the valve core (8) to rotate and control the opening of the orifice ball valve (6) to extract and empty the medium in the elastic bladder (5) and the inlet / outlet pipe (1); the elastic bladder (5) and the elastic column (4) shrink and reset synchronously, and the entire sealing device is taken out from the borehole.

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