CN217129452U - High-pressure-bearing sealing drill rod for high-pressure grouting in underground coal mine - Google Patents
High-pressure-bearing sealing drill rod for high-pressure grouting in underground coal mine Download PDFInfo
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- CN217129452U CN217129452U CN202221037369.6U CN202221037369U CN217129452U CN 217129452 U CN217129452 U CN 217129452U CN 202221037369 U CN202221037369 U CN 202221037369U CN 217129452 U CN217129452 U CN 217129452U
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Abstract
The utility model relates to a colliery is sealed drilling rod of high pressure-bearing for high pressure slip casting in pit belongs to colliery drilling tool technical field, including the drilling rod body that has the centre bore, be equipped with interior body in the centre bore of the drilling rod body, the one end that interior body is close to drilling rod female joint can be dismantled with the drilling rod body and be connected, and the other end stretches out the drilling rod body in order to with adjacent drilling rod interior body coupling, and should stretch out and be equipped with the sealing member in order to realize the sealing connection of double-phase adjacent interior body between the interior body in end and the adjacent drilling rod. The utility model discloses a set up the sealing member between two interior pipe bodys, solved the leak thick liquid that exists among the deep hole slip casting process and the poor problem of pressurize effect.
Description
Technical Field
The utility model belongs to the technical field of the colliery drilling tool, a colliery is high pressure-bearing sealing drill rod for high pressure slip casting in pit is related to.
Background
When a coal mine underground drilling construction drill meets a broken stratum, grouting operation is needed to reinforce the broken stratum, the hole forming performance of drilling is improved, and the situations of hole collapse, drill jamming, drill embracing and the like are prevented or weakened. Full-hole grouting or bag fixed-point grouting is adopted when the hole depth is shallow, and full-hole grouting is adopted when the hole depth is deep, so that the problems of large material waste, low construction efficiency, poor reinforcing effect and the like exist. The bag grouting also has the problems of difficult running, easy damage, small grouting pressure and the like. Deep hole grouting generally adopts a drill rod or a grouting device matched with the drill rod to perform grouting. At present, when common grouting drill pipes are used for grouting operation, the problems of slurry leakage, poor pressure maintaining effect, inconvenience for maintenance and the like exist, and the problems that the inner walls of most drill pipes are uneven and grouting materials cannot be completely replaced after grouting are finished exist.
SUMMERY OF THE UTILITY MODEL
In view of this, the purpose of this application is to provide a colliery is sealed drilling rod of high pressure-bearing for high pressure slip casting in pit to solve the problem that current drilling rod leaks the thick liquid.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a colliery is sealed drilling rod of high pressure-bearing for high pressure slip casting in pit, is equipped with interior body including the drilling rod body that has the centre bore in the centre bore of drilling rod body, and the one end that interior body is close to drilling rod female joint can be dismantled with the drilling rod body and be connected, and the other end stretches out the drilling rod body in order to be connected with the interior body coupling in the adjacent drilling rod, and should stretch out and be equipped with the sealing member in order to realize the sealing connection of double-phase adjacent interior body between the interior body in end and the adjacent drilling rod.
Optionally, the sealing element is a sealing ring, and the sealing element is sleeved at one end of the inner pipe body extending out of the drill pipe body.
Optionally, one end of the inner pipe body extending out of the drill pipe body is sleeved with two sealing rings.
Optionally, the two inner pipes are connected to form an inner cavity structure with a uniform inner diameter.
Optionally, the inner pipe body comprises a straight pipe part with one end provided with a sealing element mounting groove and a connecting part arranged at the other section of the straight pipe part; the inner cavity of the connecting part is provided with a step surface to form a first inner cavity and a second inner cavity with different inner diameters, the first inner cavity is close to the straight pipe part and is the same as the inner diameter of the straight pipe part, the second inner cavity is matched with the outer diameter of the other end of the straight pipe part, and when the two inner pipes are connected, the male connector end surface of the inner pipe is attached to the step surface of the other inner pipe to enable the two inner pipes to form an inner cavity structure with the same inner diameter after being connected.
Optionally, the inner tube body is retained by a retaining ring and a circumferential step.
Optionally, both ends of the inner tube body are provided with guide surfaces.
The beneficial effects of the utility model reside in that: the problem of leak thick liquid and pressurize poor effect that exist among the deep hole slip casting process is solved, and can reduce the assembly degree of difficulty in the use, be convenient for dismouting and maintenance.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.
Drawings
For the purposes of promoting a better understanding of the objects, features and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
fig. 1 is the utility model relates to a colliery is high pressure grouting in pit with the structural schematic diagram of high pressure-bearing sealed drilling rod.
Reference numerals: the drilling rod body 1, the retainer ring 2, the inner tube body 3 and the O-shaped sealing ring 4.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in any way limiting the scope of the invention; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
Referring to fig. 1, the high pressure-bearing sealed drill pipe for high pressure grouting in the underground coal mine comprises a drill pipe body 1 with a central hole, an inner pipe body 3 is arranged in the central hole of the drill pipe body 1, one end, close to a drill pipe female joint, of the inner pipe body 3 is detachably connected with the drill pipe body 1, the other end of the inner pipe body extends out of the drill pipe body 1 to be connected with the inner pipe body 3 in an adjacent drill pipe, and a sealing element is arranged between the extending end and the inner pipe body 3 in the adjacent drill pipe to realize sealing connection of the two adjacent inner pipe bodies.
Optionally, the sealing element is a sealing cylinder, which is located between the end surfaces of the two inner tubes 3, and one end of the sealing cylinder is fixedly connected with the inner tubes.
Optionally, the two inner tubes 3 are connected in an inserting manner, the sealing element is a sealing ring, and the sealing element is sleeved on the male connector of the inner tube 3 or embedded on the female connector of the corresponding inner tube 3.
Optionally, one end of the inner tube 3 extending out of the drill rod body 1 is sleeved with two sealing rings.
Alternatively, the two inner tubes 3 are connected to form a lumen structure with a uniform inner diameter.
Optionally, the inner pipe body 3 comprises a straight pipe part with a sealing element mounting groove formed at one end and a connecting part arranged at the other section of the straight pipe part; the inner cavity of the connecting part is provided with a step surface to form a first inner cavity and a second inner cavity with different inner diameters, the first inner cavity is close to the straight pipe part and is the same as the inner diameter of the straight pipe part, the second inner cavity is matched with the outer diameter of the other end of the straight pipe part, and when the two inner pipes 3 are connected, the male connector end surface of the inner pipe 3 is attached to the step surface of the other inner pipe 3 to enable the two inner pipes 3 to form an inner cavity structure with the same inner diameter after being connected.
Optionally, the inner pipe body 3 is limited by the retainer ring 2 and the circumferential step.
Optionally, both ends of the inner tube 3 are provided with guide surfaces.
Examples
A high-pressure-bearing sealing drill rod for high-pressure grouting in a coal mine mainly comprises a drill rod body 1, a check ring 2, an inner pipe body 3 and an O-shaped sealing ring 4. The drill rod body 1 and the inner tube body 3 are fixed by the retainer ring 2 and the circumferential steps of the drill rod body 1, so that the drill rod is convenient to disassemble, assemble and maintain; the chamfer structure is arranged at the male and female joints of the inner pipe body 3, so that a certain guiding effect is achieved, and the phenomena of blocking and damage in the process of additionally connecting the drill rod are prevented; two O-shaped sealing rings 4 are arranged at the male joint of the inner pipe body 3, so that the effects of preventing slurry leakage, realizing reliable pressure maintaining and the like in the grouting operation process can be ensured; the inner wall of the inner pipe body 3 is designed into an inner flat structure, and grouting materials can be replaced unclean after grouting is finished, so that damage to a drill rod is prevented. During grouting operation, grouting materials enter the stratum through a grouting pump and a high-pressure pipeline after entering the inner wall of the inner pipe body 3 of the drill pipe through a grouting device, after grouting is finished, displacement liquid enters the inner pipe body 3 of the drill pipe through the grouting pump and the high-pressure pipeline, the grouting materials of the inner pipe body 3 of the drill pipe are completely displaced, the drill pipe is not damaged easily, the function of the drill pipe in the subsequent high-pressure grouting operation process of the drill pipe is normal, the effects of grouting pressure maintaining and slurry leakage prevention can be achieved, and the reinforcing effect of high-pressure grouting is guaranteed.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.
Claims (7)
1. The utility model provides a colliery is sealed drilling rod of high pressure-bearing for high pressure slip casting in pit which characterized in that: the device comprises a drill rod body with a central hole, wherein an inner pipe body is arranged in the central hole of the drill rod body, one end of the inner pipe body, which is close to a female joint of the drill rod, is detachably connected with the drill rod body, the other end of the inner pipe body extends out of the drill rod body to be connected with the inner pipe body in an adjacent drill rod, and a sealing element is arranged between the extending end and the inner pipe body in the adjacent drill rod to realize the sealing connection of the two adjacent inner pipe bodies.
2. The high-pressure-bearing sealing drill rod for high-pressure grouting in the underground coal mine according to claim 1, characterized in that: the sealing element is a sealing ring and is sleeved at one end of the inner pipe body extending out of the drill rod body.
3. The high-pressure-bearing sealing drill rod for high-pressure grouting in the underground coal mine according to claim 2, characterized in that: and one end of the inner pipe body, which extends out of the drill pipe body, is sleeved with two sealing rings.
4. The high-pressure-bearing sealing drill rod for high-pressure grouting in the underground coal mine according to claim 1, characterized in that: the two inner pipe bodies are connected to form an inner cavity structure with the same inner diameter.
5. The high-pressure-bearing sealing drill rod for high-pressure grouting in the underground coal mine according to claim 1, characterized in that: the inner pipe body comprises a straight pipe part and a connecting part, wherein one end of the straight pipe part is provided with a sealing element mounting groove, and the connecting part is arranged at the other section of the straight pipe part; the inner cavity of the connecting part is provided with a step surface to form a first inner cavity and a second inner cavity with different inner diameters, the first inner cavity is close to the straight pipe part and is the same as the inner diameter of the straight pipe part, the second inner cavity is matched with the outer diameter of the other end of the straight pipe part, and when the two inner pipes are connected, the male connector end surface of the inner pipe is attached to the step surface of the other inner pipe to enable the two inner pipes to form an inner cavity structure with the same inner diameter after being connected.
6. The high-pressure-bearing sealing drill rod for high-pressure grouting in the underground coal mine according to claim 1, characterized in that: the inner pipe body is limited by a check ring and a circumferential step.
7. The high-pressure-bearing sealing drill rod for high-pressure grouting in the underground coal mine according to claim 1, characterized in that: guide surfaces are arranged at two ends of the inner tube body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221037369.6U CN217129452U (en) | 2022-04-28 | 2022-04-28 | High-pressure-bearing sealing drill rod for high-pressure grouting in underground coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221037369.6U CN217129452U (en) | 2022-04-28 | 2022-04-28 | High-pressure-bearing sealing drill rod for high-pressure grouting in underground coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217129452U true CN217129452U (en) | 2022-08-05 |
Family
ID=82650683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221037369.6U Active CN217129452U (en) | 2022-04-28 | 2022-04-28 | High-pressure-bearing sealing drill rod for high-pressure grouting in underground coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217129452U (en) |
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2022
- 2022-04-28 CN CN202221037369.6U patent/CN217129452U/en active Active
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