CN217176693U - Colliery is combination formula hole collapse inefficacy drilling prosthetic devices in pit - Google Patents

Colliery is combination formula hole collapse inefficacy drilling prosthetic devices in pit Download PDF

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Publication number
CN217176693U
CN217176693U CN202121469983.5U CN202121469983U CN217176693U CN 217176693 U CN217176693 U CN 217176693U CN 202121469983 U CN202121469983 U CN 202121469983U CN 217176693 U CN217176693 U CN 217176693U
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China
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hole
water injection
handheld
injection pipe
clamping
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CN202121469983.5U
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Inventor
黄长国
季卫斌
范彦阳
邓川
刘公君
覃俊
覃晓波
唐明
李波
李君�
刘凯迪
聂开举
石忠浩
刘涛
张青云
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Guizhou Anhe Mining Technology Engineering Co ltd
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Guizhou Anhe Mining Technology Engineering Co ltd
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Abstract

The utility model discloses a combined borehole failure repairing device for underground coal mine collapse, which comprises a fixed body, a water injection pipe, an overflow pipe, a shouldering assembly and a handheld assembly, wherein the water injection pipe, the overflow pipe and the shouldering assembly are arranged on the fixed body; the handheld assembly comprises a handheld body, a first clamping part is fixedly arranged on the handheld body, a first clamping part is detachably arranged on the first clamping part, and a first clamping hole and a second clamping hole which are matched with the water injection pipe and the overflow pipe respectively are formed between the first clamping part and the first clamping part. The utility model discloses a be connected handheld subassembly and water injection pipe and overflow pipe for the water injection pipe bears the holding power with the overflow pipe simultaneously, makes whole atress more reasonable, has solved the easy problem that warp of water injection pipe in the prior art, great improvement overall structure's reliability, the adjustment that the position of handheld subassembly can be by oneself simultaneously, very big improvement to different operating personnel's adaptability, make operating personnel be more attentive when work.

Description

Colliery is combination formula hole collapse inefficacy drilling prosthetic devices in pit
Technical Field
The utility model relates to a colliery gas drainage technical field especially relates to a colliery is combination formula in pit and is collapsed hole inefficacy drilling prosthetic devices.
Background
Through years of development, coal mine gas extraction technologies and equipment in China make remarkable progress, related extraction technologies and equipment are gradually changed from pure guarantee of safe production of mines to quality improvement and quantity improvement, and the coal industry is promoted to realize high-efficiency development and utilization of coal bed gas of associated resources of coal. The coal mine underground gas extraction is still the main mode of development and utilization of coal bed gas in China, and is a key measure for reducing gas emission in a mine and realizing safe production of the mine and efficient development and utilization of coal and associated resources.
As the coal seam in China generally has the characteristics of complex geological conditions, high gas content, low air permeability and large ground stress, the coal seam is easy to collapse and block during drilling construction. In addition, with the development of anti-reflection equipment, mechanical properties of underground coal bodies are changed by artificially taking anti-reflection measures on the coal bodies, the strength of the coal bodies is reduced, and drilling hole collapse and coal cinder accumulation are caused. Moreover, under the mining influence of a coal seam protective layer, the phenomena of pressure relief, permeability increase and flow increase of the coal seam are obvious, the good extraction effect can be obtained by performing pressure relief extraction, and the pressure relief extraction is widely accepted, but the mining influence of the coal seam causes stress change around a drill hole and movement deformation of a coal rock body, and directly causes hole shrinkage, hole collapse and hole blocking of the drill hole.
The method has the advantages that due to hole collapse and hole blocking of the gas extraction drill hole, the resistance of the gas extraction drill hole is increased, the resistance loss of the gas extraction drill hole is increased, the effective flow area in the drill hole is also reduced, a gas flow channel between the drill hole and a coal seam is blocked, and the gas flow in the drill hole is rapidly reduced, so that the gas extraction efficiency of the drill hole is reduced, the gas extraction cost is increased, the extraction standard reaching time is prolonged, even the mine extraction succession is directly influenced, potential safety hazards are more likely to be left for mine production, and safety accidents and economic loss are caused.
In order to solve the problems, the invention patent specification with the publication number of CN107676124B discloses a pneumatic gas extraction failure borehole restoration device, which comprises a pneumatic high-pressure water pump and a borehole restoration handheld device, wherein the device utilizes high-pressure water jet output by the borehole restoration handheld device to flush and seal accumulated coal cinder, and discharges the coal cinder out of a gas extraction borehole, and finally achieves the aim of borehole restoration, the structure of the common borehole restoration handheld device is shown as figure 1, the common borehole restoration handheld device comprises a fixed body 1-1, a water injection pipe 1-2 and an overflow pipe 1-3 are installed on the fixed body 1-1, the left end of the water injection pipe 1-2 is connected with a restoration spray head 1-5 through an extension pipe 1-4, an overflow valve used for connecting the water injection pipe 1-2 with the overflow pipe 1-3 is arranged in the fixed body 1-1, the right end of the water injection pipe 1-2 is provided with a water inlet joint 1-6, the right side of the fixed body 1-1 is also provided with a shoulder support 1-7, the shoulder support 1-7 is connected with the fixed body 1-1 through a fixed rod 1-8, wherein the overflow pipe 1-3 is fixedly connected with the water injection pipe 1-2 through a first connecting block 1-9, the fixed rod 1-8 is fixedly connected with the water injection pipe 1-2 through a second connecting block 1-10, the bottom of the fixed body 1-1 is provided with a hand support 1-11 and a switch 1-12 for controlling the water injection pipe 1-2 to be opened and closed, and the operation method is as follows: connect water injection pipe and pressure water supply installation, will restore the shower nozzle and arrange the drilling in, then increase whole length through the installation extension pipe, when restoring the shower nozzle and reacing downthehole pile up the coal body position, open the switch, the shutoff is washed away from restoring the shower nozzle blowout to the high pressure water piles up the coal body and discharges, realizes the prosthetic purpose of drilling.
In the above-mentioned hand-held device for repairing a drilled hole, a handle 1-13 is provided on the water injection pipe 1-2 for easy operation, but the handle is directly fixed on the water injection pipe by welding or the like, which has some disadvantages: 1. the water injection pipe is thin, so that the water injection pipe is easy to deform due to frequent force application in the use process, and the normal use is influenced; 2. the position of the handle is not adjustable, so that the adaptability is high for operators with different use habits, and the working efficiency is affected by the unsmooth tool.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to avoid prior art's weak point, provide a colliery is combination formula in pit and is collapsed hole inefficacy drilling prosthetic devices to effectively solve the weak point that exists among the prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a combined type borehole repairing device for coal mine underground collapse failure comprises a fixing body, a water injection pipe, an overflow pipe, a shoulder support assembly and a handheld assembly, wherein the water injection pipe, the overflow pipe and the shoulder support assembly are mounted on the fixing body;
the handheld assembly comprises a handheld body, a first clamping portion is fixedly arranged on the handheld body, a second clamping portion is detachably arranged on the first clamping portion, and a first clamping hole and a second clamping hole which are matched with the water injection pipe and the overflow pipe respectively are formed between the first clamping portion and the second clamping portion.
Furthermore, a flexible layer is sleeved on the handheld body.
Furthermore, the first clamping part and the second clamping part are connected through a locking screw rod, and the first clamping part and the second clamping part are respectively provided with a through hole and a threaded hole in a matched mode with the locking screw rod.
Furthermore, one end of the locking screw rod, which is close to the first clamping part, is provided with a limiting table and a screwing piece.
Further, a groove structure is arranged on the end face of the outer side of the first clamping portion, and the limiting table is arranged in the groove structure.
Further, a guide structure is arranged between the first clamping part and the second clamping part.
Furthermore, the guide structure comprises a socket body and a socket slot which are arranged between the first clamping part and the second clamping part.
Further, the shoulder support assembly comprises a shoulder support body, a fixing rod is arranged on the fixing body, a thread portion is arranged at the end portion of the fixing rod, a thread sleeve is arranged on the shoulder support body in a matched thread portion, at least one locking nut is connected to the thread portion in a threaded mode, and the locking nut abuts against the end portion of the thread sleeve.
Furthermore, the end of the water injection pipe is connected with a water inlet joint and an air inlet joint through a switching valve.
The above technical scheme of the utility model following beneficial effect has: the utility model discloses a be connected handheld subassembly and water injection pipe and overflow pipe for the water injection pipe bears the holding power with the overflow pipe simultaneously, makes whole atress more reasonable, has solved the easy problem that warp of water injection pipe in the prior art, great improvement overall structure's reliability, the adjustment that the position of handheld subassembly can be by oneself simultaneously, very big improvement to different operating personnel's adaptability, make operating personnel be more attentive when work.
Drawings
FIG. 1 is a schematic diagram of a prior art borehole repair handset;
FIG. 2 is a schematic structural diagram of an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a handheld component according to an embodiment of the present invention;
FIG. 4 is a sectional view taken along line A-A of FIG. 3;
FIG. 5 is an exploded view of a hand held assembly according to an embodiment of the present invention;
FIG. 6 is an exploded view of a second embodiment of the hand held assembly of the present invention;
fig. 7 is a schematic structural diagram of a second embodiment of the present invention.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 2 to 6, the combined borehole restoration device for coal mine underground collapse failure according to the embodiment includes a fixing body 1, a water injection pipe 2, an overflow pipe 3, a shoulder rest assembly and a handheld assembly 4, wherein the water injection pipe 2, the overflow pipe 3 and the shoulder rest assembly are mounted on the fixing body 1;
handheld subassembly 4 includes handheld body 401, and the last fixed first clamp 402 that is provided with of handheld body 401, detachable are provided with second clamp 403 on the first clamp 402, form respectively with water injection pipe 2 and overflow pipe 3 matched with first double-layered hole 404 and second clamp hole 405 between first clamp 402 and the second clamp 403, the utility model discloses a be connected handheld subassembly 4 and water injection pipe 2 and overflow pipe 3 simultaneously for water injection pipe 2 bears the holding power with overflow pipe 3 simultaneously, makes whole atress more reasonable, has solved the problem that water injection pipe 2 warp easily in the prior art, great improvement overall structure's reliability, the adjustment that the position of handheld subassembly 4 can be by oneself simultaneously, very big improvement to different operating personnel's adaptability, make operating personnel be more responsive in work.
The handheld body 401 is sleeved with a flexible layer 406, and the flexible layer 406 can be made of flexible materials such as rubber, so that the comfort level of the handheld body 401 held by an operator is improved.
First clamp 402 is connected through locking screw 5 with second clamp 403, first clamp 402 cooperates locking screw 5 respectively with second clamp 403 to be provided with through-hole 407 and screw hole 408, locking screw 5 is provided with spacing platform 501 and revolves piece 502 in the one end that is close to second clamp 403, when the subassembly 4 position is handed in needs adjustment, unscrew locking screw 5 a little, then slide handheld subassembly 4 to suitable position on water injection pipe 2 and overflow pipe 3, it can to lock fixedly through locking screw 5 again at last, it is very convenient.
The outer end face of the second clamping part 403 is provided with a groove structure 409, and the limiting table 501 is arranged in the groove structure 409.
A guiding structure is arranged between the first clamping portion 402 and the second clamping portion 403, the guiding structure includes a socket body 410 and a socket groove 411 arranged between the first clamping portion 402 and the second clamping portion 403, in this embodiment, an upper socket body 410 and a lower socket body 410 are arranged on the second clamping portion 403, two socket grooves 411 are correspondingly arranged on the first clamping portion 403, and by arranging the guiding structure, not only the first clamping portion 402 and the second clamping portion 403 are more convenient to install, but also the first clamping portion 402 and the second clamping portion 403 are more tightly connected after installation, in addition, in the process of adjusting the position of the handheld component 4, the dislocation of the first clamping portion 402 and the second clamping portion 403 can be avoided, and the practicability is very strong.
The shoulder holds in the palm the subassembly and includes shoulder support body 5, be provided with dead lever 6 on the fixed body 1, the tip of dead lever 6 is provided with screw thread portion 601, cooperation screw thread portion 601 is provided with thread bush 501 on the shoulder support body 5, the spiro union has at least one lock nut 7 on screw thread portion 601, lock nut 7 supports the tip that leans on at thread bush 501, can realize the horizontal position adjustment that the shoulder held in the palm body 5 through above-mentioned structure, and then cooperate with handheld subassembly controllability, the holistic adaptability of prosthetic devices has further been improved, the concrete adjustment method of shoulder support subassembly does: firstly, the locking nut 7 is screwed leftwards to enable the locking nut 7 to be separated from the abutting effect of the threaded sleeve 501, then the shoulder rest body 5 is integrally screwed to enable the shoulder rest body 5 to move leftwards or rightwards, after the shoulder rest body 5 is moved to a required position, the shoulder rest body 5 is adjusted, and then the threaded sleeve 501 is abutted again by screwing the locking nut 7, so that the shoulder rest is very convenient.
As shown in fig. 7, in the second embodiment, the end of the water injection pipe 2 is connected with a water inlet joint 9 and an air inlet joint 10 through a switching valve 8, and by switching between two media, different working conditions can be met, such as medium pressure air repair (a coal mine air compressor or an air compression system, generally 1-2MPa, less than 3MPa) when meeting a cemented coal seam, and medium pressure water repair (generally 15-20MPa, less than 30MPa) when meeting a coal with higher hardness and better coal quality.
The bottom of the fixing body 1 is provided with a hand rest 11 and a switch 12 for controlling the on-off of the water injection pipe 2, the structure is changed into a common pistol type structure in the prior art, and of course, the on-off of the water injection pipe 2 can be controlled by adopting a pedal type switch structure in order to reduce the load of hands and to realize better control of the water injection pipe 2.
The pressure gauge and the power control device can be added on the water injection pipe 2, so that high pressure, low flow and low pressure and high flow are realized.
A safety hinge can be added on the whole device, and the safety hinge is connected to the anchor net of the roadway side.
A pressure release valve can be added on the water injection pipe 2 to realize the effect of emergency pressure release and improve the safety factor.
Other parts which are not described in detail can adopt the same structure as the prior art, for example, the water injection pipe 2 is detachably provided with an extension pipe 13 through a thread structure (the extension pipe 13 can be connected with a plurality of sections end to end according to actual requirements), the end part of the extension pipe 13 is detachably provided with a repair spray head 14 through the thread structure, and the repair spray head can be changed into a structure with a guide hole and a bottom spray hole by taking the structure of compressed air drilling as reference, or the repair spray head in the prior art can be directly adopted.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims (9)

1. The utility model provides a colliery is combination formula in pit and is collapsed hole inefficacy drilling prosthetic devices, includes the fixed body and installs water injection pipe, overflow pipe and the shoulder of on the fixed body and hold in the palm the subassembly, its characterized in that: also includes a hand-held assembly;
the handheld assembly comprises a handheld body, a first clamping portion is fixedly arranged on the handheld body, a second clamping portion is detachably arranged on the first clamping portion, and a first clamping hole and a second clamping hole which are matched with the water injection pipe and the overflow pipe respectively are formed between the first clamping portion and the second clamping portion.
2. The underground coal mine combined collapsed hole failure drilling hole repairing device according to claim 1, characterized in that: the handheld body is sleeved with a flexible layer.
3. The underground coal mine combined collapsed hole failure drilling hole repairing device according to claim 1, characterized in that: the first clamping portion is connected with the second clamping portion through a locking screw rod, and the first clamping portion and the second clamping portion are respectively provided with a through hole and a threaded hole in a matched mode with the locking screw rod.
4. The underground coal mine combined collapsed hole failure drilling repairing device according to claim 3, characterized in that: and one end of the locking screw rod, which is close to the first clamping part, is provided with a limiting table and a screwing piece.
5. The underground coal mine combined collapsed hole failure drilling repairing device according to claim 4, characterized in that: the outer end face of the first clamping portion is provided with a groove body structure, and the limiting table is arranged in the groove body structure.
6. The underground coal mine combined collapsed hole failure drilling hole repairing device according to claim 1, characterized in that: and a guide structure is arranged between the first clamping part and the second clamping part.
7. The combined type collapse hole failure drilling hole repairing device in the coal mine well according to claim 6, characterized in that: the guide structure comprises a socket body and a socket slot which are arranged between the first clamping part and the second clamping part.
8. The underground coal mine combined collapsed hole failure drilling hole repairing device according to claim 1, characterized in that: the shoulder support assembly comprises a shoulder support body, a fixing rod is arranged on the fixing body, a thread portion is arranged at the end portion of the fixing rod, a thread sleeve is arranged on the shoulder support body in a matched thread portion, at least one locking nut is connected to the thread portion in a threaded mode, and the locking nut abuts against the end portion of the thread sleeve.
9. The underground coal mine combined collapsed hole failure drilling hole repairing device according to claim 1, characterized in that: the end of the water injection pipe is connected with a water inlet joint and an air inlet joint through a switching valve.
CN202121469983.5U 2021-06-30 2021-06-30 Colliery is combination formula hole collapse inefficacy drilling prosthetic devices in pit Active CN217176693U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121469983.5U CN217176693U (en) 2021-06-30 2021-06-30 Colliery is combination formula hole collapse inefficacy drilling prosthetic devices in pit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121469983.5U CN217176693U (en) 2021-06-30 2021-06-30 Colliery is combination formula hole collapse inefficacy drilling prosthetic devices in pit

Publications (1)

Publication Number Publication Date
CN217176693U true CN217176693U (en) 2022-08-12

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ID=82706850

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121469983.5U Active CN217176693U (en) 2021-06-30 2021-06-30 Colliery is combination formula hole collapse inefficacy drilling prosthetic devices in pit

Country Status (1)

Country Link
CN (1) CN217176693U (en)

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