Spiral gas drainage pipe connecting structure

Abstract

The utility model provides a spiral gas drainage pipe connecting structure which comprises a drainage pipe main body, a first positioning part, a second positioning part and a sealing part, a spiral structure is arranged on the outer side of the drainage pipe main body, a flange plate is arranged at the tail end of the drainage pipe main body, a plurality of evenly-distributed connecting holes are formed in the flange plate, and the first positioning part and the second positioning part are connected through the sealing part. Inner side mounting grooves are formed in the flange plates, mounting holes are formed in the inner side mounting grooves, and the first positioning part and the second positioning part are located between the two flange plates. According to the spiral gas drainage pipe connecting structure, through auxiliary positioning of the first positioning part and the second positioning part, the installation process is more stable and accurate, meanwhile, it is not needed to confirm whether the positions of connecting holes in flange plates on the two sides are misplaced or not in the butt joint installation process, and the situation that fixing screws cannot be installed is avoided; while the steps are simplified and the accuracy is improved, the first positioning part and the second positioning part also provide buffering and protection for the connecting part between the two groups of drainage pipe main bodies.

Description

Technical Field

[0001] The utility model relates to the technical field of gas drainage pipes, in particular to a connecting structure for spiral gas drainage pipes. Background Technique

[0002] The gas drainage pipe is a pipeline installed in a borehole in a coal mine for gas drainage, generally made of metal.

[0003] The existing gas drainage pipes usually adopt flange connections. Therefore, during the installation process of two groups of drainage pipes, it is necessary to align the connection holes of the flange plates, which is a rather troublesome step, reducing the installation efficiency. At the same time, the connection ports lack protection and buffering, and may be affected during use, resulting in a reduction in connection strength.

[0004] Therefore, it is necessary to provide a connecting structure for spiral gas drainage pipes to solve the above technical problems. Content of the Utility Model

[0005] The utility model provides a connecting structure for spiral gas drainage pipes, which solves the problems that the installation process of two groups of drainage pipes is troublesome, the connection ports lack protection and buffering, and may be affected during use, resulting in a reduction in connection strength.

[0006] To solve the above technical problems, a connecting structure for spiral gas drainage pipes provided by the utility model includes: a drainage pipe main body, a first positioning part, a second positioning part, and a sealing part. A spiral structure is arranged on the outer side of the drainage pipe main body. A flange plate is arranged at the end of the drainage pipe main body. A plurality of uniformly distributed connection holes are opened on the flange plate. An inner installation groove is opened on the flange plate. An installation hole is opened on the inner installation groove. The first positioning part and the second positioning part are located between two groups of flange plates. The first positioning part includes a first positioning ring, and a first through hole is opened on the first positioning ring. The second positioning part includes a second positioning ring, and a second through hole is opened on the second positioning ring. A plurality of installation holes are provided and arranged in an array. The position of the first through hole corresponds to that of the installation hole. The position of the second through hole corresponds to that of the installation hole.

[0007] Preferably, a telescopic sleeve rod and a first spring are fixedly connected to the bottom of the installation hole on one side corresponding to the first positioning part. A contact end is arranged at the end of the telescopic sleeve rod. The first spring is arranged on the outer side of the telescopic sleeve rod, and the other end of the first spring is fixedly connected to the first positioning ring.

[0008] Preferably, a docking pressure rod and a second spring are fixedly connected to the bottom of the installation hole on one side corresponding to the second positioning part. The position of the docking pressure rod corresponds to that of the contact end. The second spring is arranged on the outer side of the docking pressure rod, and the other end of the second spring is fixedly connected to the second positioning ring.

[0009] Preferably, a first positioning groove is formed in the inner mounting groove on one side corresponding to the first positioning portion, a first convex ring is provided on the first positioning ring, the first convex ring corresponds to the first positioning groove, a second positioning groove is formed in the inner mounting groove on one side corresponding to the second positioning portion, a second convex ring is provided on the second positioning ring, and the second convex ring corresponds to the second positioning groove.

[0010] Preferably, a first sliding block is provided on the first convex ring, a second sliding block is provided on the second convex ring, a first sliding groove and a second sliding groove are provided in the inner mounting groove, the first sliding block is slidably connected to the first sliding groove, and the second sliding block is slidably connected to the second sliding groove.

[0011] Preferably, the sealing portion includes a first sealing groove, a second sealing groove and a sealing ring, the first sealing groove is provided on the first positioning ring, and the second sealing groove is provided on the second positioning ring.

[0012] Compared with the related art, a spiral gas drainage pipe connection structure provided by the present utility model has the following beneficial effects:

[0013] The present utility model provides a spiral gas drainage pipe connection structure. Through the auxiliary positioning of the first positioning portion and the second positioning portion, the installation process is more stable and accurate. At the same time, during the butt joint installation process, there is no need to confirm whether the connection hole positions on the two flange plates are misaligned so that the fixing screws cannot be installed. While simplifying the steps and improving the accuracy, the first positioning portion and the second positioning portion also provide buffering and protection for the connection part between the two groups of drainage pipe bodies. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of a preferred embodiment of a spiral gas drainage pipe connection structure provided by the present utility model;

[0015] Figure 2 is a schematic structural diagram of the front of the first positioning ring and its related components in the present utility model;

[0016] Figure 3 is a schematic structural diagram of one side of the first positioning ring facing the inner mounting groove in the present utility model;

[0017] Figure 4 is a schematic structural diagram of the front of the second positioning ring and its related components in the present utility model;

[0018] Figure 5 is a schematic structural diagram of one side of the second positioning ring facing the inner mounting groove in the present utility model.

[0019] Reference numerals in the figure: 1, main body of the drainage pipe; 2, spiral structure; 3, flange; 4, connection hole; 5, inner mounting groove; 6, mounting hole; 7, first positioning ring; 8, first through hole; 9, telescopic sleeve rod; 10, contact end; 11, first spring; 12, first positioning groove; 13, first convex ring; 14, first slider; 15, first chute; 16, second positioning ring; 17, second through hole; 18, docking pressure rod; 19, second spring; 20, second positioning groove; 21, second convex ring; 22, second slider; 23, second chute; 24, first sealing groove; 25, second sealing groove; 26, sealing ring. Detailed implementation mode

[0020] The present utility model will be further described below in conjunction with the accompanying drawings and the implementation mode.

[0021] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , wherein, Figure 1 is a schematic structural diagram of a preferred embodiment of a spiral gas drainage pipe connection structure provided by the present utility model;

[0022] Figure 2 is a schematic structural diagram of the front side of the first positioning ring and its related components in the present utility model;

[0023] Figure 3 is a schematic structural diagram of the side of the first positioning ring facing the inner mounting groove in the present utility model;

[0024] Figure 4 is a schematic structural diagram of the front side of the second positioning ring and its related components in the present utility model;

[0025] Figure 5 is a schematic structural diagram of the side of the second positioning ring facing the inner mounting groove in the present utility model.

[0026] A connecting structure for a spiral gas drainage pipe includes: a main drainage pipe 1, a first positioning part, a second positioning part, and a sealing part. A spiral structure 2 is arranged on the outer side of the main drainage pipe 1. A flange 3 is arranged at the end of the main drainage pipe 1. A plurality of uniformly distributed connecting holes 4 are formed in the flange 3. An inner installation groove 5 is formed in the flange 3. An installation hole 6 is formed in the inner installation groove 5. The first positioning part and the second positioning part are located between two groups of flanges 3. The first positioning part includes a first positioning ring 7. A first through hole 8 is formed in the first positioning ring 7. The second positioning part includes a second positioning ring 16. A second through hole 17 is formed in the second positioning ring 16. A plurality of installation holes 6 are provided and arranged in an array. The position of the first through hole 8 corresponds to that of the installation hole 6. The position of the second through hole 17 corresponds to that of the installation hole 6. A sealing part is arranged between the first positioning part and the second positioning part.

[0027] Align the corresponding components on the first positioning part and the second positioning part, and then push the main drainage pipes 1 on both sides towards each other. Due to the auxiliary positioning effect of the two positioning parts, there is no need to adjust and align the positions of the connecting holes 4 on the flanges 3 on both sides, which simplifies the connection process of two adjacent main drainage pipes 1.

[0028] At the bottom of the installation hole 6 corresponding to one side of the first positioning part, a telescopic sleeve rod 9 and a first spring 11 are fixedly connected. A contact end 10 is arranged at the end of the telescopic sleeve rod 9. The first spring 11 is arranged on the outer side of the telescopic sleeve rod 9. The other end of the first spring 11 is fixedly connected to the first positioning ring 7.

[0029] The telescopic sleeve rod 9 and the contact end 10 are used to assist in positioning during the installation of the first positioning part and the second positioning part.

[0030] At the bottom of the installation hole 6 corresponding to one side of the second positioning part, a docking pressure rod 18 and a second spring 19 are fixedly connected. The position of the docking pressure rod 18 corresponds to that of the contact end 10. The second spring 19 is arranged on the outer side of the docking pressure rod 18. The other end of the second spring 19 is fixedly connected to the second positioning ring 16.

[0031] During the process of the second positioning part approaching the first positioning part, the docking pressure rod 18 passes through the first through hole 8 and contacts the contact end 10 to play a positioning role. At this time, since the second positioning part is still moving towards the first positioning part and squeezing it against the inner installation groove 5, the telescopic sleeve rod 9, the first spring 11, and the second spring 19 are all compressed. Until the sealing part completes the sealing, use screws to pass through the connecting holes 4 on the two flanges 3 to complete the connection of the two drainage pipes; the first spring 11 and the second spring 19 also play a role in buffering and shock absorption, and squeezing the first positioning ring 7 and the second positioning ring 16 to make the sealing effect better.

[0032] A first positioning groove 12 is formed in the inner mounting groove 5 on one side corresponding to the first positioning portion. A first convex ring 13 is provided on the first positioning ring 7, and the first convex ring 13 corresponds to the first positioning groove 12. A second positioning groove 20 is formed in the inner mounting groove 5 on one side corresponding to the second positioning portion. A second convex ring 21 is provided on the second positioning ring 16, and the second convex ring 21 corresponds to the second positioning groove 20.

[0033] Through the settings of the first convex ring 13 and the first positioning groove 12, and the second convex ring 21 and the second positioning groove 20, the stability of the first positioning portion and the second positioning portion during the approaching positioning process is increased.

[0034] A first sliding block 14 is provided on the first convex ring 13, a second sliding block 22 is provided on the second convex ring 21, a first sliding groove 15 and a second sliding groove 23 are provided in the inner mounting groove 5, the first sliding block 14 is slidably connected to the first sliding groove 15, and the second sliding block 22 is slidably connected to the second sliding groove 23.

[0035] During the approaching positioning process of the first positioning portion and the second positioning portion, the first sliding block 14 and the first sliding groove 15, and the second sliding block 22 and the second sliding groove 23 make the sliding process of the first convex ring 13 and the second convex ring 21 more stable, increasing the positioning accuracy.

[0036] The sealing portion includes a first sealing groove 24, a second sealing groove 25 and a sealing ring 26. The first sealing groove 24 is provided on the first positioning ring 7, and the second sealing groove 25 is provided on the second positioning ring 16.

[0037] After the first positioning portion and the second positioning portion approach each other, the first sealing groove 24 and the second sealing groove 25 form a complete sealing groove, and the sealing ring 26 is buckled to complete the sealing.

[0038] The working principle of a spiral gas drainage pipe connection structure provided by the present utility model is as follows:

[0039] Align the corresponding components on the first positioning portion and the second positioning portion, and then push the two sides of the drainage pipe main body 1 towards each other. Due to the auxiliary positioning effect of the two groups of positioning portions, there is no need to adjust and align the positions of the connection holes 4 on the two side flange plates 3, simplifying the connection process of two adjacent drainage pipe main bodies 1.

[0040] Compared with the related art, a spiral gas drainage pipe connection structure provided by the present utility model has the following beneficial effects:

[0041] With the auxiliary positioning of the first positioning part and the second positioning part, the installation process is more stable and accurate. At the same time, during the docking installation process, there is no need to confirm whether the positions of the connecting holes 4 on the two flange plates 3 are misaligned, which may prevent the installation of the fixing screws. While simplifying the steps and improving the accuracy, the first positioning part and the second positioning part also provide buffering and protection for the connection part between the two groups of main drainage pipes 1.

[0042] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A spiral gas extraction pipe connection structure, characterized in that: include: A pumping pipe body, a first positioning portion, a second positioning portion and a sealing portion, wherein a spiral structure is arranged on the outer side of the pumping pipe body, a flange is arranged at the end of the pumping pipe body, a plurality of evenly distributed connecting holes are opened on the flange, an inner mounting groove is opened on the flange, a mounting hole is opened on the inner mounting groove, the first positioning portion and the second positioning portion are located between two groups of flanges, the first positioning portion includes a first positioning ring, a first through hole is opened on the first positioning ring, the second positioning portion includes a second positioning ring, a second through hole is opened on the second positioning ring, a plurality of mounting holes are arranged in an array, the first through hole corresponds to the position of the mounting hole, and the second through hole corresponds to the position of the mounting hole.

2. A spiral gas extraction pipe connection structure according to claim 1, characterized in that: A telescopic sleeve rod and a first spring are fixedly connected to the bottom of the mounting hole on one side corresponding to the first positioning portion, a contact end is provided at the end of the telescopic sleeve rod, the first spring is provided on the outside of the telescopic sleeve rod, and the other end of the first spring is fixedly connected to the first positioning ring.

3. A spiral gas extraction pipe connection structure according to claim 2, characterized in that: A docking pressure rod and a second spring are fixedly connected to the bottom of the mounting hole on one side corresponding to the second positioning portion. The position of the docking pressure rod corresponds to the contact end. The second spring is arranged on the outside of the docking pressure rod. The other end of the second spring is fixedly connected to the second positioning ring.

4. A spiral gas extraction pipe connection structure according to claim 3, characterized in that: A first positioning groove is provided on the inner mounting groove on the side corresponding to the first positioning portion, a first convex ring is provided on the first positioning ring, and the first convex ring corresponds to the first positioning groove; a second positioning groove is provided on the inner mounting groove on the side corresponding to the second positioning portion, and a second convex ring is provided on the second positioning ring, and the second convex ring corresponds to the second positioning groove.

5. A spiral gas extraction pipe connection structure according to claim 4, characterized in that: The first convex ring is provided with a first slider, the second convex ring is provided with a second slider, the inner mounting groove is provided with a first slide groove and a second slide groove, the first slider is slidably connected to the first slide groove, and the second slider is slidably connected to the second slide groove.

6. A spiral gas extraction pipe connection structure according to claim 1, characterized in that: The sealing portion comprises a first sealing groove, a second sealing groove and a sealing ring, wherein the first sealing groove is arranged on a first positioning ring, and the second sealing groove is arranged on a second positioning ring.

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