Plugging chuck for gas waste extraction hole
By designing a plugging chuck for gas waste extraction holes, and utilizing a rotating structure and a clamping slider to clamp the inner wall of the extraction hole, the problem of time-consuming, labor-intensive, and costly existing plugging methods is solved. This achieves a fast, stable, and low-cost plugging effect, improving safety and production efficiency.
Patent Information
- Application Number
- CN202520160784.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2035-01-23
AI Technical Summary
Existing methods for sealing gas extraction holes are time-consuming, labor-intensive, and costly, and are difficult to effectively seal abandoned extraction holes, leading to safety hazards and production disruptions.
Design a plugging chuck for a gas waste extraction hole, including a plugging cover and a rotating structure. It uses a positioning block and a clamping knob to lock into the inner wall of the extraction hole. The rotating handle drives the clamping slider to lock and slide, achieving rapid plugging.
It achieves a fast, stable, and low-cost sealing effect, preventing sand and gravel from falling and improving safety and production efficiency.
Smart Images

Figure CN223621569U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of coal mine gas waste hole treatment technology, and in particular relates to a sealing chuck for a gas waste extraction hole. Background Technology
[0002] To reduce the gas content in coal seams and goafs, prevent gas accumulation, and ensure mine safety, coal mines drill numerous extraction holes at necessary locations in roadways during gas extraction. These holes extract gas from the coal seams and goafs, reducing gas concentration and preventing accidents such as gas explosions. However, some extraction holes leave numerous voids after gas extraction, which can lead to the falling of sand and gravel, and even oil stains. Furthermore, a large amount of gas accumulated in the goaf may be carried into the coal face or production roadways by air leakage, affecting normal production and even causing major accidents. The "two-blocking-one-injection" sealing method is often used for permanent sealing, but this method is time-consuming, labor-intensive, and costly. Utility Model Content
[0003] The purpose of this invention is to provide a plugging chuck for abandoned gas extraction holes, which solves the problems of time-consuming, labor-intensive and costly existing plugging methods.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A sealing chuck for a gas waste extraction hole includes a sealing cover and a rotating structure. The bottom of the sealing cover is fixedly connected to a positioning block. The positioning block has a cuboid structure with a slot cut through its bottom along its length, leaving two side walls. The rotating structure includes a rotating handle and a locking knob. The rotating handle passes through the center of the sealing cover and the positioning block and is fixedly connected to the locking knob. The rotating handle is slidably connected to both the positioning block and the sealing cover. The locking knob is slidably connected to the bottom of the positioning block. Sliding grooves are formed on both side walls of the positioning block, and locking sliders are slidably connected in the grooves along the length of the positioning block on both sides of the locking knob.
[0006] Preferably, the sealing cap is circular.
[0007] Preferably, the locking knob is elliptical.
[0008] Preferably, a rotating rod is fixed at the top of the rotating handle.
[0009] Working principle: Based on the diameter of the coal mine's extraction hole, the sealing chuck is customized in batches. The positioning block at the bottom of the sealing cover is placed into the extraction hole. The rotating rod is rotated 90 degrees, which drives the clamping knob to rotate. The clamping sliders on both sides of the clamping knob slide outward. The two clamping sliders will lock the inner wall of the extraction hole, making it difficult to fall off. It is aesthetically pleasing and prevents sand, gravel and other debris from falling into the cavity and causing safety hazards.
[0010] The beneficial effects achieved by this utility model are:
[0011] (1) A cuboid positioning block is used. The positioning block has a certain thickness to help clamp the slider and the inner wall of the extraction hole, and prevent the slider from falling off easily because it is too close to the extraction hole.
[0012] (2) An elliptical clamping knob is used in the center of the positioning block, which makes it easy to rotate while the clamping slider slides in the opposite direction, quickly locking with both sides of the inner wall of the extraction hole, and making it less likely to fall off.
[0013] (3) The sealing chuck has a simple structure, is easy to operate, saves time and effort, and has low cost. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;
[0015] Figure 2 This is a side view of an embodiment of the present utility model.
[0016] Explanation of reference numerals in the attached diagram: 1. Sealing cap; 2. Positioning block; 3. Rotating handle; 4. Clamping knob; 5. Slide groove; 6. Clamping slider; 7. Rotating rod. Detailed Implementation
[0017] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and embodiments.
[0018] like Figure 1-2 As shown, a sealing chuck for a gas waste extraction hole includes a sealing cover 1 and a rotating structure. The sealing cover 1 is circular, and a positioning block 2 is fixedly connected to the bottom of the sealing cover 1. The positioning block 2 is a cuboid structure, and its bottom is slotted along its length, leaving two side walls. The rotating structure includes a rotating handle 3 and a locking knob 4. The locking knob 4 is elliptical. The rotating handle 3 passes through the center of the sealing cover 1 and the positioning block 2 and is fixedly connected to the locking knob 4. The rotating handle 3 is slidably connected to both the positioning block 2 and the sealing cover 1. The locking knob 4 is connected to the bottom of the positioning block 2. The sliding connection features a rotating handle 3 with a fixed rotating rod 7 at the top. Slide grooves 5 are formed on both sides of the handle. Clamping sliders 6 are slidably connected to both sides of the clamping knob 4 along the length of the positioning block 2 within the slide grooves 5. A circular sealing cap is designed, saving materials and enhancing aesthetics. Thick positioning blocks are used to maintain a certain distance between the clamping sliders and the extraction hole, preventing damage to the extraction hole opening and subsequent detachment during clamping. Two clamping sliders are provided on both sides of the positioning block, engaging with both sides of the extraction hole, improving both clamping efficiency and stability.
Claims
1. A sealing chuck for a gas waste extraction hole, characterized in that, The device includes a sealing cap and a rotating structure. The bottom of the sealing cap is fixedly connected to a positioning block, which is a cuboid structure. The bottom of the positioning block is slotted along its length, leaving two side walls. The rotating structure includes a rotating handle and a locking knob. The rotating handle passes through the center of the sealing cap and the positioning block and is fixedly connected to the locking knob. The rotating handle is slidably connected to both the positioning block and the sealing cap. The locking knob is slidably connected to the bottom of the positioning block. Sliding grooves are formed on both side walls of the positioning block. Locking sliders are slidably connected in the grooves on both sides of the locking knob along the length of the positioning block.
2. The sealing chuck for a gas waste extraction hole according to claim 1, characterized in that, The sealing cap is circular.
3. The sealing chuck for a gas waste extraction hole according to claim 2, characterized in that, The locking knob is oval in shape.
4. The sealing chuck for a gas waste extraction hole according to claim 1, characterized in that, A rotating rod is fixed at the top of the rotating handle.