Portable sealing and repairing equipment for gas extraction drill hole

The design of portable gas drainage borehole sealing and repair equipment, combined with electric nozzles and dust collection components, solves the problem of impurities in the borehole affecting the repair quality, achieving efficient borehole cleaning and repair. It is suitable for sealing and repairing gas drainage boreholes in coal mining.

CN224260315UActive Publication Date: 2026-05-19YONGCHENG YONGAN MINE SAFETY TECH ENG CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YONGCHENG YONGAN MINE SAFETY TECH ENG CO LTD
Filing Date
2025-07-01
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing gas extraction borehole repair equipment lacks borehole cleaning capabilities, leaving impurities inside the borehole that affect repair quality and efficiency. Furthermore, the equipment is bulky and inconvenient to carry.

Method used

A portable gas extraction borehole sealing and repair device was designed, which includes a repair component and a dust collection component. The device sprays material into the borehole through an electric nozzle and cleans the borehole using the dust collection component, thus integrating borehole cleaning and repair. The device is small in size and easy to carry.

Benefits of technology

It improves the quality and efficiency of borehole repair, simplifies the operation process, facilitates use in different locations, and extends the service life of the filter cartridge.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224260315U_ABST
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Abstract

The utility model relates to the field of coal mining, in particular to portable sealing and repairing equipment for gas extraction drilling, which comprises a placing frame, straps, a material storage barrel, a sealing cover, a clamping frame, a repairing assembly and the like, the front sides of the left and right parts of the placing frame are connected with the straps, the left part of the placing frame is connected with the material storage barrel, and the upper part of the material storage barrel is connected with the sealing cover through threads; clamping frames are connected to the left side and the right side of the upper portion of the containing frame correspondingly, and a repairing assembly used for conducting sealing repairing on the drilled hole is arranged between the material storage barrel and the clamping frames. The dust collection pipe and the filter cylinder extend into a drill hole to adsorb garbage or impurities, then the electric spray head and the discharging rod extend into the hole, the electric spray head rotates and sprays out materials for sealing and repairing, and therefore the electric spray head can be rotated to achieve uniform spraying of the materials in the drill hole after the drill hole is cleaned before repairing. In addition, the device is small in size, convenient to carry to different places for use and convenient to use.
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Description

Technical Field

[0001] This utility model relates to the field of coal mining, and in particular to a portable gas extraction borehole sealing and repair device. Background Technology

[0002] Gas drainage boreholes are a technical means of extracting gas from underground coal seams. During coal mining, gas in the coal seam is a significant safety hazard. In the fields of coal mining and gas control, the sealing and repair work of gas drainage boreholes is crucial. As an important component of the gas drainage system, the sealing performance of gas drainage boreholes directly affects the gas drainage efficiency and the safety of coal mine production.

[0003] Current methods for repairing gas extraction boreholes typically involve moving repair equipment to a designated location, inserting pipes from the equipment into the borehole, and then starting the equipment to allow slurry to flow into the borehole for repair. However, current repair equipment focuses solely on borehole repair and lacks the function of cleaning the borehole. Impurities remaining in the borehole can easily affect the adhesion between the repair material and the borehole wall, resulting in poor repair quality and low repair efficiency. In addition, the equipment is generally large in size and complex in structure, making it inconvenient to carry and use.

[0004] Therefore, there is a need to design a portable gas extraction borehole sealing and repair device that can clean the borehole before repair and then rotate the electric nozzle to spray the material evenly inside the borehole, thereby improving the repair quality and efficiency. In addition, this device is small in size and easy to carry to different locations for use. Utility Model Content

[0005] To overcome the shortcomings of current repair equipment that only focuses on borehole repair and lacks the function of cleaning the borehole, leaving impurities inside the borehole that can easily affect the adhesion between the repair material and the borehole wall, resulting in poor repair quality and low repair efficiency. In addition, the equipment is generally large in size, complex in structure, and inconvenient to carry and use. This utility model provides a portable gas extraction borehole sealing and repair device that can clean the borehole before repair and then rotate an electric nozzle to uniformly spray the material inside the borehole, improving repair quality and efficiency. Moreover, this device is small in size, easy to carry and use in different locations.

[0006] The technical solution is: a portable gas extraction borehole sealing and repair device, comprising a placement frame, a shoulder strap, a storage bucket, a sealing cover, a clamping frame, a repair component, and a dust collection component. The shoulder strap is connected to the front of both the left and right sides of the placement frame. The storage bucket is connected to the left side of the placement frame. The sealing cover is threadedly connected to the upper part of the storage bucket. The clamping frame is connected to the left and right sides of the upper part of the placement frame. A repair component for sealing and repairing the borehole is provided between the storage bucket and the clamping frame. A dust collection component for cleaning debris and impurities at the borehole is provided between the placement frame and the clamping frame.

[0007] Optionally, the repair assembly includes a discharge rod, a connecting hose, a fixing block, a motor, a gear set, and an electric nozzle. The discharge rod is clamped on the left clamping frame. A connecting hose connects the discharge rod to the lower side of the storage tank. A fixing block is connected to the upper part of the discharge rod. A motor is connected to the left side of the fixing block. An electric nozzle is rotatably connected to the discharge rod. A gear set is provided between the electric nozzle and the output shaft of the motor.

[0008] Optionally, the gear set includes a gear and a gear ring, with the gear connected to the output shaft of the motor and the gear ring connected to the lower part of the electric nozzle, and the gear and gear ring meshing with each other.

[0009] Optionally, the vacuuming assembly includes a collection bin, a vacuum hose, and a filter cartridge. The collection bin is connected to the right side of the placement frame, and a sealing cap is also connected to the lower part of the collection bin via a thread. The vacuum hose is connected to the upper part of the collection bin via an air pump. The vacuum hose is engaged with the clamping bracket on the right side, and a filter cartridge is connected to the upper front side of the vacuum hose via a thread.

[0010] Optionally, both the discharge rod and the lower part of the suction pipe are equipped with soft pads.

[0011] Optionally, it also includes a rotating fan blade and a cleaning frame, with the rotating fan blade rotatably connected to the front of the filter cartridge, and the cleaning frame connected to the front side of the rotating fan blade, the cleaning frame contacting the filter cartridge.

[0012] Beneficial effects: 1. This utility model uses a suction pipe and filter cylinder to absorb garbage or impurities by extending into the drill hole. Then, the electric nozzle and discharge rod are inserted into the hole, causing the electric nozzle to rotate and spray material for sealing and repair. This allows the drill hole to be cleaned before repair, and the electric nozzle can be rotated to spray material evenly inside the drill hole, improving the repair quality and efficiency. In addition, this device is small in size, easy to carry to different locations, and convenient to use.

[0013] 2. This utility model involves rotating and moving the filter cartridge after it comes into contact with the suction pipe, then inserting the suction pipe and filter cartridge into the drilled hole to adsorb garbage or impurities, and then rotating the cleaning frame to scrape off the impurities. This allows the filter cartridge to be installed for vacuuming while simultaneously scraping off impurities on the filter cartridge, preventing the filter cartridge from becoming clogged and affecting adsorption, improving cleaning efficiency, facilitating the installation, removal and replacement of the filter cartridge, and extending its service life.

[0014] 3. This utility model involves adding repair materials into a storage bin, then rotating the sealing cap to move and install it. After use, rotating the sealing cap on the collection bin and removing it allows impurities and waste in the collection bin to be poured out. Rotating the sealing cap again allows for the storage bin to be placed upright for material feeding while the collection bin is placed upside down to collect waste. This facilitates the feeding of repair materials and the discharge of impurities and waste, improving the convenience of use. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional cross-sectional view of the placement frame and storage bin of this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of the motor and gear set components of this utility model.

[0018] Figure 4 This is a three-dimensional cross-sectional view of the filter cartridge and cleaning rack of this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1-Placement frame, 2-Shoulder strap, 3-Storage bin, 4-Collection bin, 5-Sealing cap, 6-Clamping frame, 7-Discharge rod, 8-Connecting hose, 9-Fixing block, 10-Motor, 11-Gear set, 12-Electric nozzle, 13-Dust suction pipe, 14-Filter cartridge, 15-Rotating fan blade, 16-Cleaning frame. Detailed Implementation

[0020] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0021] A portable gas extraction borehole sealing and repair device, such as Figures 1-4 As shown, the device includes a placement frame 1, a shoulder strap 2, a storage bin 3, a sealing cap 5, a clamping frame 6, a repair component, and a dust collection component. The shoulder strap 2 is connected to the front of both the left and right sides of the placement frame 1. The storage bin 3 is connected to the left side of the placement frame 1. The sealing cap 5 is threadedly connected to the upper part of the storage bin 3. The clamping frame 6 is connected to the upper left and right sides of the placement frame 1. A repair component for sealing and repairing drilled holes is provided between the storage bin 3 and the clamping frame 6. A dust collection component for cleaning debris and impurities at the drilled holes is provided between the placement frame 1 and the clamping frame 6.

[0022] like Figures 1-3 As shown, the repair assembly includes a discharge rod 7, a connecting hose 8, a fixing block 9, a motor 10, a gear set 11, and an electric nozzle 12. The discharge rod 7 is clamped onto the clamping frame 6 on the left side. The connecting hose 8 connects the discharge rod 7 to the lower side of the storage tank 3. The fixing block 9 is connected to the upper part of the discharge rod 7. The motor 10 is connected to the left side of the fixing block 9. The electric nozzle 12 is rotatably connected to the discharge rod 7. The gear set 11 is provided between the electric nozzle 12 and the output shaft of the motor 10. The gear set 11 includes a gear and a gear ring. The gear is connected to the output shaft of the motor 10. The gear ring is connected to the lower part of the electric nozzle 12. The gear and the gear ring mesh with each other.

[0023] like Figure 1 , Figure 2 and Figure 4 As shown, the vacuuming assembly includes a collection bucket 4, a vacuum hose 13, a filter cartridge 14, a rotating fan blade 15, and a cleaning frame 16. The collection bucket 4 is connected to the right side of the placement frame 1. The sealing cap 5 is also threadedly connected to the lower part of the collection bucket 4. The vacuum hose 13 is connected to the upper part of the collection bucket 4 via an air pump. The vacuum hose 13 is engaged with the clamping frame 6 on the right side. The discharge rod 7 and the lower part of the vacuum hose 13 are both provided with soft pads for easy hand gripping. The filter cartridge 14 is threadedly connected to the upper front side of the vacuum hose 13. The rotating fan blade 15 is rotatably connected to the front of the filter cartridge 14. The cleaning frame 16 is connected to the front side of the rotating fan blade 15 and is in contact with the filter cartridge 14.

[0024] When sealing and repairing boreholes for gas extraction is required, this equipment can be used. The sealing cover 5 is removed by rotating it, and then cement mortar, polyurethane foam, or other repair materials are added to the storage tank 3. After adding the appropriate materials, the sealing cover 5 is brought into contact with the storage tank 3. The sealing cover 5 is then rotated in the opposite direction for installation. Next, the filter cartridge 14 is brought into contact with the suction pipe 13, and the filter cartridge 14 is rotated for installation. The rotating fan blade 15 and the cleaning frame 16 are then installed. The operator then carries the device on their back using the shoulder strap 2. After moving the device to the location of the borehole, the suction pipe 13 is removed and clamped by hand using the soft pad. The frame 6 is detached, and then the suction pipe 13 and the filter cartridge 14 are moved closer to the drill hole or inserted into the drill hole. The air pump is then activated, causing debris or impurities in the hole to be sucked into the filter cartridge 14 and then into the suction pipe 13 for collection. Under the action of the airflow, the rotating fan blades 15 rotate, causing the cleaning frame 16 to rotate and scrape off impurities from the filter cartridge 14, thereby cleaning the drill hole. This allows the filter cartridge 14 to be used for vacuuming while simultaneously scraping off impurities from it, preventing clogging and improving cleaning efficiency. It also facilitates the installation, removal, and replacement of the filter cartridge 14, extending its service life. After cleaning, the air pump is turned off, and then the suction pipe 13 and the filter cartridge 14 are moved closer to the drill hole or inserted into the drill hole. The dust pipe 13 and the filter cartridge 14 are removed from the hole, and the dust suction pipe 13 is then fixed by snapping it into the clamping frame 6. Next, the discharge rod 7 is removed, allowing the electric nozzle 12 and the discharge rod 7 to extend into the hole. Then, the motor 10 is started, driving the gear to rotate. The gear meshes with the gear ring, causing the electric nozzle 12 to rotate. Simultaneously, the electric nozzle 12 is activated, allowing the repair material in the storage tank 3 to enter the connecting hose 8, flow into the discharge rod 7, and then be sprayed out from the electric nozzle 12 to seal and repair the drilled hole. This allows for cleaning the drilled hole before repair and then rotating the electric nozzle 12 to achieve uniform spraying of material inside the drilled hole, improving repair quality and efficiency. The device is small in size, making it easy to carry to different locations. It is convenient to use. After repair, turn off the motor 10 and the electric nozzle 12, then remove the discharge rod 7 and secure it with the clamping frame 6. After use, remove the device and lower it, detaching the shoulder strap 2 from the operator. Then, rotate the sealing cap 5 on the collection bucket 4 to remove it, allowing impurities and waste to drain out. Next, reattach the sealing cap 5 to the collection bucket 4 and rotate it again to install it. This allows for simultaneous loading of materials into the storage bucket 3 and collecting waste from the collection bucket 4, facilitating the loading of repair materials and the discharge of impurities and waste.Improve ease of use.

[0025] It should be understood that this embodiment is for illustrative purposes only and is not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A portable gas drainage borehole sealing and repair device, characterized in that: It includes a placement frame (1), a shoulder strap (2), a storage bin (3), a sealing cap (5), a clamping frame (6), a repair component, and a dust collection component. The shoulder strap (2) is connected to the front of both the left and right sides of the placement frame (1). The storage bin (3) is connected to the left side of the placement frame (1). The sealing cap (5) is connected to the upper part of the storage bin (3) by a thread. The clamping frame (6) is connected to the upper left and right sides of the placement frame (1). A repair component for sealing and repairing the drilled hole is provided between the storage bin (3) and the clamping frame (6). A dust collection component for cleaning up the debris and impurities at the drilled hole is provided between the placement frame (1) and the clamping frame (6).

2. The portable gas extraction borehole sealing and repair device according to claim 1, characterized in that: The repair assembly includes a discharge rod (7), a connecting hose (8), a fixing block (9), a motor (10), a gear set (11), and an electric nozzle (12). The discharge rod (7) is clamped on the left clamp (6). The connecting hose (8) is connected between the discharge rod (7) and the lower side of the storage bucket (3). The fixing block (9) is connected to the upper part of the discharge rod (7). The motor (10) is connected to the left side of the fixing block (9). The electric nozzle (12) is rotatably connected to the discharge rod (7). A gear set (11) is provided between the electric nozzle (12) and the output shaft of the motor (10).

3. The portable gas extraction borehole sealing and repair device according to claim 2, characterized in that: The gear set (11) includes a gear and a gear ring. The output shaft of the motor (10) is connected to a gear, and the lower part of the electric nozzle (12) is connected to a gear ring. The gear and the gear ring mesh with each other.

4. The portable gas extraction borehole sealing and repair device according to claim 1, characterized in that: The vacuuming assembly includes a collection bucket (4), a vacuum hose (13), and a filter cartridge (14). The collection bucket (4) is connected to the right side of the placement frame (1). The lower part of the collection bucket (4) is also connected to a sealing cap (5) via a thread. The upper part of the collection bucket (4) is connected to the vacuum hose (13) via an air pump. The vacuum hose (13) is engaged with the clamping bracket (6) on the right side. The upper front side of the vacuum hose (13) is connected to the filter cartridge (14) via a thread.

5. A portable gas extraction borehole sealing and repair device according to claim 2, characterized in that: Both the discharge rod (7) and the suction pipe (13) are equipped with soft pads at the bottom.

6. The portable gas extraction borehole sealing and repair device according to claim 4, characterized in that: It also includes a rotating fan blade (15) and a cleaning frame (16). The front of the filter cylinder (14) is rotatably connected to the rotating fan blade (15), and the front side of the rotating fan blade (15) is connected to the cleaning frame (16). The cleaning frame (16) is in contact with the filter cylinder (14).