CN212564894U - Mine pipeline expansion device - Google Patents
Mine pipeline expansion device Download PDFInfo
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- CN212564894U CN212564894U CN202021371631.1U CN202021371631U CN212564894U CN 212564894 U CN212564894 U CN 212564894U CN 202021371631 U CN202021371631 U CN 202021371631U CN 212564894 U CN212564894 U CN 212564894U
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Abstract
The utility model discloses a pipeline expansion bend, in particular to mine pipeline expansion bend, include: the telescopic joint is connected between the first guide pipe and the second guide pipe, a first sleeve and a second sleeve are arranged on the outer side of the telescopic joint, the first sleeve is connected with the first guide pipe, the second sleeve is connected with the second guide pipe, and a gap exists between the first sleeve and the second sleeve. Through the flexible change of the telescopic joint on the pipeline, eliminate the relative displacement volume that the wall of a well subsides, ensure the safety of vertical shaft pit shaft promotion and pipeline. The compensation pipeline produces various displacements when in operation, especially in the pipeline without a support in a long-distance coal mine pipeline, the pipeline compensates the defect that an ordinary expansion piece is easy to pull off to cause accidents, and meanwhile, the corrugated pipe with lower strength in the device is protected by two sleeves, so that the damage of the device can be greatly reduced, and the service life is prolonged.
Description
Technical Field
The utility model relates to a pressure vessel technical field, in particular to mine pipeline expansion bend.
Background
In a mine shaft constructed for developing mine resources, shaft equipment facilities such as a water supply pipeline, a drainage pipeline, a grouting pipeline, a compressed air pipeline and the like are often arranged according to needs. However, as a plurality of vertical shaft freezing well walls and well drilling well walls have been broken from the past to the present, the corresponding damage is brought to the well shaft equipment, and certain harm is brought to the operation of the mine well pipeline. In the process of sinking the covering soil body and the loose rock body to different degrees, downward acting force, namely vertical additional force is generated on the outer surface of the well wall, and when the force reaches a certain value, the well wall is broken and sinks at the interface part of the bedrock and the impact layer or other weak parts. According to the analysis of related data, the vertical additional force is limited by objective factors, and only the geology, the geological and mining, the landform and the environmental climate are different, the structural design and the construction method of the shaft wall and the construction quality are different, and the magnitude of the additional force and the damage degree to the shaft wall of the shaft are also different. The pipe beam rooted on the well wall is driven to sink together due to the breakage and sinking of the well wall, so that the pipeline is forced to gradually affect upwards and downwards in two directions until the damage accidents such as bending, distortion and even breakage and pipe explosion occur obviously. In the past, people all adopt to stop production, passively replace and maintain the pipe beam and the pipeline, and ignore how to make the pipeline dynamically adapt to the change of a well wall, thereby ensuring the safe and reliable operation.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the existing problem among the above-mentioned prior art, provide a mine pipeline expansion bend to solve present technical problem.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model provides a mine pipeline expansion bend, include: the telescopic joint is connected between the first guide pipe and the second guide pipe, a first sleeve and a second sleeve are arranged on the outer side of the telescopic joint, the first sleeve is connected with the first guide pipe, the second sleeve is connected with the second guide pipe, and a gap exists between the first sleeve and the second sleeve.
Preferably, the first guide pipe is connected with a first flange, the second guide pipe is connected with a second flange, and the first flange and the second flange are welded on the first guide pipe and the second guide pipe and are used for being conveniently connected with other pipelines.
Preferably, be provided with first end plate on the first flange, be provided with the second end plate on the second flange, be provided with a plurality of first connecting rods on the first end plate, be provided with a plurality of second connecting rods on the second end plate, be connected with the extension spring between first connecting rod and the second connecting rod.
Preferably, still be connected with spacing steel wire between first connecting rod and the second connecting rod, spacing steel wire sets up in the extension spring, and spacing steel wire is used for restricting the maximum distance between first pipe and the second pipe, prevents to draw bad extension spring or bellows.
Preferably, the telescopic joint is a corrugated pipe.
The utility model has the advantages that: through the flexible change of the telescopic joint on the pipeline, eliminate the relative displacement volume that the wall of a well subsides, ensure the safety of vertical shaft pit shaft promotion and pipeline. The compensation pipeline produces various displacements when in operation, especially in the pipeline without a support in a long-distance coal mine pipeline, the pipeline compensates the defect that an ordinary expansion piece is easy to pull off to cause accidents, and meanwhile, the corrugated pipe with lower strength in the device is protected by two sleeves, so that the damage of the device can be greatly reduced, and the service life is prolonged.
Drawings
The foregoing aspects and advantages of the invention will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic cross-sectional structural view of a mine pipeline expansion piece according to an embodiment of the present invention;
fig. 2 is another schematic sectional view of the mine pipe expansion device according to the embodiment of the present invention;
fig. 3 is a schematic cross-sectional view of the front side of the mine pipe retractor according to an embodiment of the present invention;
fig. 4 is a front view of a mine pipe retractor according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a mine pipeline expansion piece according to an embodiment of the present invention.
Description of reference numerals:
in fig. 1-5, a first flange 1; a first conduit 2; a first sleeve 3; a second sleeve 4; a second conduit 5; a second flange 6; a second link 7; a bellows 8; a tension spring 9; a first link 10; a second end plate 11; a first end plate 12.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a mine pipeline expansion bend, include: the first guide pipe 2 and the second guide pipe 5 are connected with a telescopic joint between the first guide pipe 2 and the second guide pipe 5, a first sleeve 3 and a second sleeve 4 are arranged on the outer side of the telescopic joint, the first sleeve 3 is connected with the first guide pipe 2, the second sleeve 4 is connected with the second guide pipe 5, and a gap exists between the first sleeve 3 and the second sleeve 4.
First pipe 2 and second pipe 5 all are straight steel pipes, the telescopic joint is a bellows 8, first sleeve 3 and second sleeve 4 also all are straight steel pipes, the internal diameter of first sleeve 3 is greater than the external diameter of second sleeve 4, there is certain clearance between 3 inner walls of first sleeve and the 4 outer walls of second sleeve, the width in clearance is 2% - -20% of 4 radial of second sleeve about, make the device can be crooked to a certain extent, other dimensional relationship should guarantee at least: when the bellows 8 reaches the maximum extension position, the limiting steel wire should be in a tensioning state, the tension spring 9 is not deformed due to failure, and the first sleeve 3 and the second sleeve 4 have overlapped parts.
The first pipe 2 is connected with a first flange 1, the second pipe 5 is connected with a second flange 6, the first flange 1 and the second flange 6 are welded on the first pipe 2 and the second pipe 5 and are used for being conveniently connected with other pipelines, and the first flange 1 and the second flange 6 are common metal flanges.
The corrugated pipe comprises a first flange 1, a second flange 6 and a first end plate 12, wherein the first flange 1 is provided with the first end plate 12, the second flange 6 is provided with the second end plate 11, the first end plate 12 is provided with a plurality of first connecting rods 10, the second end plate 11 is provided with a plurality of second connecting rods 7, tension springs 9 are connected between the first connecting rods 10 and the second connecting rods 7, the first end plate 12 and the second end plate 11 are both circular metal plates and are welded on the flanges, through holes are formed in the first end plate 12 and the second end plate 11 and are used for penetrating through the first connecting rods 10 and the second connecting rods 7, the first connecting rods 10 and the second connecting rods 7 are both common metal rods, the tension springs 9 and limiting steel wires are fixed between the first connecting rods 10 and the second connecting rods 7, the limiting steel wires are common steel wires, and the tension springs 9 are used for offsetting.
Still be connected with spacing steel wire between first connecting rod 10 and the second connecting rod 7, spacing steel wire sets up in extension spring 9, and spacing steel wire is used for limiting the maximum distance between first pipe 2 and the second pipe 5, prevents to draw bad extension spring 9 or bellows 8.
Through the flexible change of the telescopic joint on the pipeline, the displacement of wall of a well subsidence is eliminated, and the safety of the shaft lifting and the pipeline of the vertical shaft is ensured. The compensation pipeline produces various displacements when in operation, especially in the pipeline without a support in a long-distance coal mine pipeline, it makes up for the defect that the common expansion bend is easy to pull off to cause accidents, meanwhile, the corrugated pipe 8 with lower strength in the device is protected by two sleeves, the damage of the device can be greatly reduced, the service life is prolonged, and meanwhile, when in use, the first guide pipe 2 is preferably positioned above the second guide pipe 5.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (5)
1. A mine pipe retractor, comprising: a first conduit and a second conduit, characterized by: the telescopic joint is connected between the first guide pipe and the second guide pipe, a first sleeve and a second sleeve are arranged on the outer side of the telescopic joint, the first sleeve is connected with the first guide pipe, the second sleeve is connected with the second guide pipe, and a gap exists between the first sleeve and the second sleeve.
2. The mine pipe retractor of claim 1, wherein: the first guide pipe is connected with a first flange, and the second guide pipe is connected with a second flange.
3. The mine pipe retractor of claim 2, wherein: the improved structure of the automobile engine is characterized in that a first end plate is arranged on the first flange, a second end plate is arranged on the second flange, a plurality of first connecting rods are arranged on the first end plate, a plurality of second connecting rods are arranged on the second end plate, and tension springs are connected between the first connecting rods and the second connecting rods.
4. The mine pipe retractor of claim 3, wherein: still be connected with spacing steel wire between first connecting rod and the second connecting rod, spacing steel wire sets up in the extension spring.
5. The mine pipe retractor of claim 1, wherein: the telescopic joint is a corrugated pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021371631.1U CN212564894U (en) | 2020-07-13 | 2020-07-13 | Mine pipeline expansion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021371631.1U CN212564894U (en) | 2020-07-13 | 2020-07-13 | Mine pipeline expansion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212564894U true CN212564894U (en) | 2021-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021371631.1U Active CN212564894U (en) | 2020-07-13 | 2020-07-13 | Mine pipeline expansion device |
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| CN (1) | CN212564894U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117287559A (en) * | 2023-09-08 | 2023-12-26 | 中建二局第三建筑工程有限公司 | Hydraulic deviation rectifying and protecting device for manual pipe jacking construction and construction method |
-
2020
- 2020-07-13 CN CN202021371631.1U patent/CN212564894U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117287559A (en) * | 2023-09-08 | 2023-12-26 | 中建二局第三建筑工程有限公司 | Hydraulic deviation rectifying and protecting device for manual pipe jacking construction and construction method |
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