CN217683713U - Polyvinyl chloride gas drainage pipe quick connection structure for coal mine - Google Patents
Polyvinyl chloride gas drainage pipe quick connection structure for coal mine Download PDFInfo
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- CN217683713U CN217683713U CN202221270268.3U CN202221270268U CN217683713U CN 217683713 U CN217683713 U CN 217683713U CN 202221270268 U CN202221270268 U CN 202221270268U CN 217683713 U CN217683713 U CN 217683713U
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- pipe fitting
- polyvinyl chloride
- gas drainage
- chloride gas
- drainage pipe
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- 229920000915 polyvinyl chloride Polymers 0.000 title claims abstract description 70
- 239000004800 polyvinyl chloride Substances 0.000 title claims abstract description 70
- 239000003245 coal Substances 0.000 title claims abstract description 16
- 230000007704 transition Effects 0.000 claims abstract description 33
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 11
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000003872 anastomosis Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
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Abstract
A quick connecting structure of polyvinyl chloride gas drainage pipes for coal mines is used for connecting two polyvinyl chloride gas drainage pipes and comprises a first connecting body, a second connecting body and a third connecting body, wherein the first connecting body is arranged at one end of each polyvinyl chloride gas drainage pipe; the second connector is arranged at the other end of the polyvinyl chloride gas drainage pipe; the first connecting body comprises a connecting pipe fitting and a reinforcing pipe fitting; one end of the connecting pipe fitting is in smooth transition connection with the end part of the polyvinyl chloride gas drainage pipe, and an internal thread is arranged on the inner wall of the connecting pipe fitting; one end of the reinforced pipe fitting is connected with the end part of the connecting pipe fitting in a smooth transition mode; the second connector is connected in the PVC gas drainage pipe end portion through a threaded pipe fitting in the waiting, the outer diameter of the second connector is matched with the inner diameter of the connecting pipe fitting, and the outer thread of the second connector is matched with the inner thread of the connecting pipe fitting. The utility model discloses have concurrently connect fast, do not need extra connecting bolt, the flat advantage that does not have the hindrance of junction.
Description
Technical Field
The utility model relates to a gas drainage technical field specifically is a polyvinyl chloride gas drainage pipe quick connect structure for coal mine.
Background
The underground gas control of the coal mine is important safety operation, and the gas in the coal seam is extracted in a careful manner through the gas extraction and drainage pipe so as to effectively control underground gas accidents. In the prior art, the gas drainage pipe needs to bear large negative pressure, and has higher requirements on the antistatic property, tensile resistance and flame retardance of the gas drainage pipe due to the characteristics of gas, and the polyvinyl chloride pipe is widely used due to excellent antistatic property, tensile resistance and flame retardance. The installation is limited by the width of an underground roadway and installation conditions, so that the gas drainage pipe is usually in a short section form and needs to be placed into holes one by one for connection during installation. At present, the connection modes between polyvinyl chloride pipes are mainly two types, one type is a plurality of drawing and releasing pipes with port connecting flange structures disclosed in the prior art, the drawing and releasing pipes not only need additional bolts for fixing, but also form large-diameter bulges at the joints, so that the holes are difficult to enter, and although the connection is stable, the connection is not practical in practice, and the problems of complex structure, difficult die sinking and high cost also exist; therefore, at present, the conventional simple connection mode of port sleeving and bundling is still used in practice, the connection is flat and has no problem, but the problems of difficult sleeving, time consumption and labor consumption exist, and the connection still has potential safety hazards.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model aims at providing a polyvinyl chloride gas drainage pipe quick connect structure for coal mine improves on the basis of gas drainage pipe port structure, does not increase any extra part structure, relies on self structure between the port to accomplish quick and stable connection, has concurrently to connect fast, does not need extra connecting bolt, the flat advantage that does not have the hindrance of junction.
The utility model discloses a solve the technical scheme that above-mentioned problem was taken as follows:
the utility model provides a polyvinyl chloride gas drainage pipe quick connect structure for coal mine for connect two polyvinyl chloride gas drainage pipes, include:
the first connecting body is arranged at one end of the polyvinyl chloride gas drainage pipe;
the second connecting body is arranged at the other end of the polyvinyl chloride gas drainage pipe and is used for being connected with the first connecting body; wherein,
the first connecting body comprises a connecting pipe fitting and a reinforcing pipe fitting;
the outer diameter of the connecting pipe fitting is larger than that of the polyvinyl chloride gas drainage pipe, the inner diameter of the connecting pipe fitting is larger than that of the polyvinyl chloride gas drainage pipe and smaller than that of the polyvinyl chloride gas drainage pipe, one end of the connecting pipe fitting is in smooth transition connection with the end part of the polyvinyl chloride gas drainage pipe, and the inner wall of the connecting pipe fitting is provided with internal threads;
the outer diameter of the reinforced pipe fitting is larger than that of the connecting pipe fitting, the inner diameter of the reinforced pipe fitting is matched with the outer diameter of the polyvinyl chloride gas drainage pipe, and one end of the reinforced pipe fitting is connected with the end part of the connecting pipe fitting in a smooth transition and integrated manner;
the second connector is connected with equal-inner-diameter threaded pipe fittings at the end parts of the polyvinyl chloride gas drainage pipe in an integrated mode, the outer diameter of the second connector is matched with the inner diameter of the connecting pipe fittings, and the outer threads of the second connector are matched with the inner threads of the connecting pipe fittings.
Preferably, the connecting pipe fitting is further provided with a transition pipe fitting between the polyvinyl chloride gas drainage pipe, the transition pipe fitting is of a round table-shaped structure, the outer diameter of one end of the transition pipe fitting is matched with the outer diameter of the polyvinyl chloride gas drainage pipe, the outer diameter of the other end of the transition pipe fitting is matched with the outer diameter of the connecting pipe fitting, and the inner diameter of the transition pipe fitting is matched with the inner diameter of the polyvinyl chloride gas drainage pipe.
Preferably, the joint of the connecting pipe fitting and the end part of the inner cavity of the transition pipe fitting is provided with a first limiting step.
Preferably, a second limiting step is arranged at the joint of the end part of the inner cavity of the reinforcing pipe fitting and the connecting pipe fitting, and a third limiting step matched with the second limiting step is arranged at the joint of the second connector and the end part of the outer wall of the polyvinyl chloride gas drainage pipe.
Preferably, the length of the connecting pipe fitting is 80-100mm, and the length of the reinforcing pipe fitting is 30-40mm.
Preferably, the difference between the inner diameters of the connecting pipe fitting and the polyvinyl chloride gas drainage pipe is 6-8mm.
Preferably, the difference between the inner diameters of the reinforcing pipe and the connecting pipe is 1-3mm.
Compared with the prior art, the utility model discloses following beneficial effect has:
this application technical scheme relies on the current structure basis of gas drainage pipe, carries out the secondary reaming to the port on the one hand, and on the one hand to another port necking down car screw thread, and it is more convenient not only to install, can cup joint fast fixedly, and the external diameter of installing back gas drainage pipe still can keep basic level, does not have extra hindrance structure, has reduced and has filled in downthehole resistance with gas drainage pipe, has improved the operating efficiency at scene.
Drawings
FIG. 1 is a schematic view of the present invention;
fig. 2 is a schematic structural diagram after connection.
The labels in the figure are: 1. polyvinyl chloride gas drainage pipe, 2, first connector, 3, second connector, 31, external screw thread, 4, connection pipe fitting, 41, internal thread, 5, enhancement pipe fitting, 6, transition pipe fitting, 7, first spacing step, 8, the spacing step of second, 9, the spacing step of third.
Detailed Description
The present invention will be described in detail with reference to the following embodiments, which are based on the technical solution of the present invention and provide detailed embodiments and specific operation processes.
As shown in the figure, the utility model relates to a polyvinyl chloride gas drainage pipe quick connect structure for the coal mine for connect two polyvinyl chloride gas drainage pipes 1, include:
the first connector 2 is arranged at one end of the polyvinyl chloride gas drainage pipe 1;
the second connector 3 is arranged at the other end of the polyvinyl chloride gas drainage pipe 1 and is used for being connected with the first connector 2; wherein,
the first connection body 2 comprises a connection pipe 4 and a reinforcement pipe 5;
the outer diameter of the connecting pipe fitting 4 is larger than the outer diameter of the polyvinyl chloride gas drainage pipe 1, the inner diameter of the connecting pipe fitting 4 is larger than the inner diameter of the polyvinyl chloride gas drainage pipe 1 and smaller than the outer diameter of the polyvinyl chloride gas drainage pipe 1, one end of the connecting pipe fitting 4 is in smooth transition connection with the end part of the polyvinyl chloride gas drainage pipe 1, and the inner wall of the connecting pipe fitting 4 is provided with an internal thread 41;
the outer diameter of the reinforced pipe fitting 5 is larger than that of the connecting pipe fitting 4, the inner diameter of the reinforced pipe fitting 5 is matched with the outer diameter of the polyvinyl chloride gas drainage pipe 1, and one end of the reinforced pipe fitting 5 is connected with the end part of the connecting pipe fitting 4 in a smooth transition mode;
the second connector 3 is integrally connected with the equal-inner-diameter threaded pipe fitting at the end part of the polyvinyl chloride gas drainage pipe 1, the outer diameter of the second connector 3 is matched with the inner diameter of the connecting pipe fitting 4, and the external thread 31 of the second connector 3 is matched with the internal thread 41 of the connecting pipe fitting 4.
The length of second connector 3 is unanimous with the length of being connected pipe fitting 4, and both play the linkage effect of core as the connection position of core, and the outer external screw thread 31 of second connector 3 is mutually supported with the internal thread 41 of being connected in the pipe fitting 4, forms threaded connection structure, compares traditional mode of cup jointing, connects more firm and safety.
In addition, since the second connector 3 is a pipe body improvement based on the gas drainage pipe 1, the wall thickness at the second connector 3 is smaller than that of the gas drainage pipe 1, so that the strength of the part of the structure is weakened, and the connection strength between the part of the structure and the connecting pipe fitting 4 is weakened; and in order to improve the intensity of this department connection, specially the tip of connecting pipe fitting 4 further forms the enhancement pipe fitting 5 that expands outward, and this enhancement pipe fitting 5 can be connected the back of accomplishing with connecting pipe fitting 4 at second connector 3, and the body of further parcel a part gas drainage pipe 1 shares the stress intensity of threaded connection department, and then has effectively avoided the 3 wall thickness of second connector to reduce the adverse effect that brings.
About strengthening pipe fitting 5, except can increasing junction intensity, can also play the effect of conveniently cup jointing, strengthen the internal diameter of pipe fitting 5 and be far greater than the external diameter of second connector 3, make second connector 3 embolia that can be very quick, avoided second connector 3 direct and be connected between pipe fitting 4 forward cup joint the screw thread, aim at the inconvenience of coincide screw thread.
The foregoing is a basic embodiment of the invention, which may be further modified, optimized, or limited based on the foregoing.
If, it is further, connect pipe fitting 4 with still be provided with transition pipe fitting 6 between the pipe 1 is taken out to polyvinyl chloride gas, transition pipe fitting 6 is round platform column structure, 6 one end external diameters of transition pipe fitting with the pipe 1 external diameter phase-match is taken out to polyvinyl chloride gas, the external diameter of the 6 other ends of transition pipe fitting with the external diameter phase-match of connecting pipe fitting 4, the internal diameter of transition pipe fitting 6 with the internal diameter phase-match of pipe 1 is taken out to polyvinyl chloride gas.
The joint of the connecting pipe fitting 4 and the end part of the inner cavity of the transition pipe fitting 6 is provided with a first limiting step 7.
The transition pipe fitting 6 is connected with the polyvinyl chloride gas drainage pipe 1 and the connecting pipe fitting 4 in an integrated and smooth transition mode, the transition pipe fitting 6 has two functions, one function is that a limiting step caused by the inner diameter difference is formed between the transition pipe fitting 6 and the connecting pipe fitting 4, namely a first limiting step 7, and the step can be directly used for limiting and tightly abutting against the end part of the second connecting body 3; secondly, the transition pipe fitting is used for smooth transition between the polyvinyl chloride gas drainage pipe 1 and the connecting pipe fitting 4, and the smoothness and the flatness of the surface of the polyvinyl chloride gas drainage pipe 1 are ensured as far as possible.
As another example, a second limiting step 8 is arranged at the joint of the reinforcing pipe fitting 5 and the end of the inner cavity of the connecting pipe fitting 4, and a third limiting step 9 matched with the second limiting step 8 is arranged at the joint of the second connecting body 3 and the end of the outer wall of the polyvinyl chloride gas drainage pipe 1.
By strengthen the pipe fitting 5 with the internal diameter step that the internal diameter difference between the pipe fitting 4 brought is for the second spacing step 8, and the second connector 3 with the external diameter difference between the polyvinyl chloride gas drainage pipe 1 then directly forms third spacing step 9, and the size and the position between second spacing step 8 and the third spacing step 9 all match each other anastomoses, after carrying out spacing the support to the tip of second connector 3 through first spacing step 7 and leaning on, further lean on the tail end of second connector 3 through the spacing step 8 of second, guarantee the stability and the intensity of junction.
In the polyvinyl chloride gas drainage pipe 1 that uses in this application, the length of connecting pipe fitting 4 is 80-100mm, the length of strengthening pipe fitting 5 is 30-40mm, and concrete length corresponds the reference with the external diameter of polyvinyl chloride gas drainage pipe 1 each other, does not have fixed standard in practice, confirms according to the actual production condition.
Further, the difference in the inner diameter of the connecting pipe member 4 and the polyvinyl chloride gas drainage pipe 1 is 3 to 5mm, which is a standard commonly used in practical production, is 4mm, and the difference in the inner diameter of the reinforcing pipe member 5 and the connecting pipe member 4 is 1 to 3mm, which is a standard commonly used in practical production, is 2mm.
Wholly say, this application technical scheme relies on the current structure basis of gas drainage pipe, on the one hand carry out the secondary reaming to the port, on the one hand to another port necking down car screw thread, the threaded connection effect of core can be guaranteed to one end reaming pipe connection pipe fitting 4, two-stage segment reaming pipe, strengthen the joint strength that pipe fitting 5 can strengthen threaded connection department promptly, it is more convenient not only to install, can cup joint fixedly fast, and the external diameter of installing back gas drainage pipe still can keep basic level, there is not extra hindrance structure, the resistance of plugging in the downthehole with gas drainage pipe has been reduced, the operating efficiency at scene is improved, compared in the connection structure among the prior art, the improvement is with low costs, improve effectually, and is suitable for being generalized to use.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been described with reference to the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make equivalent modifications or changes within the technical scope of the present invention, and any simple modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are within the technical scope of the present invention.
Claims (7)
1. The utility model provides a polyvinyl chloride gas drainage pipe quick connect structure for coal mine for connect two polyvinyl chloride gas drainage pipe (1), its characterized in that includes:
the first connecting body (2) is arranged at one end of the polyvinyl chloride gas drainage pipe (1);
the second connecting body (3) is arranged at the other end of the polyvinyl chloride gas drainage pipe (1) and is used for being connected with the first connecting body (2); wherein,
the first connecting body (2) comprises a connecting pipe (4) and a reinforcing pipe (5);
the outer diameter of the connecting pipe fitting (4) is larger than that of the polyvinyl chloride gas drainage pipe (1), the inner diameter of the connecting pipe fitting (4) is larger than that of the polyvinyl chloride gas drainage pipe (1) and smaller than that of the polyvinyl chloride gas drainage pipe (1), one end of the connecting pipe fitting (4) is in smooth transition connection with the end part of the polyvinyl chloride gas drainage pipe (1), and an inner thread (41) is arranged on the inner wall of the connecting pipe fitting (4);
the outer diameter of the reinforced pipe fitting (5) is larger than that of the connecting pipe fitting (4), the inner diameter of the reinforced pipe fitting (5) is matched with the outer diameter of the polyvinyl chloride gas drainage pipe (1), and one end of the reinforced pipe fitting (5) is connected with the end part of the connecting pipe fitting (4) in a smooth transition and integrated mode;
the second connector (3) is integrally connected with the equal-inner-diameter threaded pipe fitting at the end part of the polyvinyl chloride gas drainage pipe (1), the outer diameter of the second connector (3) is matched with the inner diameter of the connecting pipe fitting (4), and the external thread (31) of the second connector (3) is matched with the internal thread (41) of the connecting pipe fitting (4).
2. The quick connecting structure for the polyvinyl chloride gas drainage pipe for the coal mine according to claim 1, wherein: connect pipe fitting (4) with still be provided with transition pipe fitting (6) between polyvinyl chloride gas drainage pipe (1), transition pipe fitting (6) are round platform column structure, transition pipe fitting (6) one end external diameter with polyvinyl chloride gas drainage pipe (1) external diameter phase-match, the external diameter of transition pipe fitting (6) other end with the external diameter phase-match of connecting pipe fitting (4), the internal diameter of transition pipe fitting (6) with the internal diameter phase-match of polyvinyl chloride gas drainage pipe (1).
3. The quick connecting structure for the polyvinyl chloride gas drainage pipe for the coal mine as claimed in claim 2, wherein: the joint of the connecting pipe fitting (4) and the end part of the inner cavity of the transition pipe fitting (6) is provided with a first limiting step (7).
4. The quick connecting structure for the polyvinyl chloride gas drainage pipe for the coal mine according to claim 1, wherein: the joint of the end part of the inner cavity of the reinforcing pipe fitting (5) and the connecting pipe fitting (4) is provided with a second limiting step (8), and the joint of the end part of the outer wall of the second connecting body (3) and the polyvinyl chloride gas drainage pipe (1) is provided with a third limiting step (9) matched with the second limiting step (8).
5. The quick connecting structure for the polyvinyl chloride gas drainage pipe for the coal mine according to claim 1, wherein: the length of the connecting pipe fitting (4) is 80-100mm, and the length of the reinforcing pipe fitting (5) is 30-40mm.
6. The quick connecting structure for the polyvinyl chloride gas drainage pipe for the coal mine according to claim 1, wherein: the inner diameter difference between the connecting pipe fitting (4) and the polyvinyl chloride gas drainage pipe (1) is 3-5mm.
7. The quick connecting structure for the polyvinyl chloride gas drainage pipe for the coal mine according to claim 1, wherein: the inner diameter difference between the reinforcing pipe fitting (5) and the connecting pipe fitting (4) is 1-3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221270268.3U CN217683713U (en) | 2022-05-25 | 2022-05-25 | Polyvinyl chloride gas drainage pipe quick connection structure for coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221270268.3U CN217683713U (en) | 2022-05-25 | 2022-05-25 | Polyvinyl chloride gas drainage pipe quick connection structure for coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217683713U true CN217683713U (en) | 2022-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221270268.3U Active CN217683713U (en) | 2022-05-25 | 2022-05-25 | Polyvinyl chloride gas drainage pipe quick connection structure for coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217683713U (en) |
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- 2022-05-25 CN CN202221270268.3U patent/CN217683713U/en active Active
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