Auxiliary drainage pipe fitting for preventing and controlling water in coal mine

Abstract

The utility model discloses an auxiliary drainage pipe fitting for preventing and controlling water in a coal mine, which belongs to the technical field of coal mines and comprises a metal inner pipe and an outer protective rubber pipe, the outer protective rubber pipe is sleeved outside the metal inner pipe in a sliding manner, a sliding telescopic structure is formed between the metal inner pipe and the outer protective rubber pipe, and a locking component is mounted on the outer protective rubber pipe. And the locking assembly is used for fixing the external protection rubber pipe. Compared with the prior art, the auxiliary drainage pipe fitting for preventing and controlling water in the coal mine has a protection effect outside the drainage pipe fitting through the outer protection rubber pipe, the surface of the drainage pipe fitting is prevented from being damaged in the transportation and carrying process, and meanwhile, the outer protection rubber pipe can slide and stretch out and draw back, so that the outer protection rubber pipe can serve as a part of the drainage pipe fitting; therefore, the service life of the drainage pipe fitting can be guaranteed, the weight and the size can be reduced on the premise that the length of the drainage pipe fitting is guaranteed, and time and labor are saved during transportation and carrying of the drainage pipe fitting.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal mines, and in particular relates to an auxiliary drainage pipe fitting for preventing and controlling water in coal mines. Background Art

[0002] The purpose of coal mine water prevention and control is to intercept the water source of mine seepage, fill the water-filled channels, and controllably release the water bodies that are prone to cause disasters. The work of coal mine water prevention and control is an important task to ensure the safe and stable operation of mines, and it involves the production safety and environmental protection of mines.

[0003] At present, the auxiliary drainage pipes for water prevention and control in coal mines are generally assembled from multiple single metal pipe fittings. Before assembly, the single metal pipe fittings need to be transported and moved underground. During the transportation process, the surface of the metal pipe fittings is easily damaged, causing the metal pipe fittings to rust, greatly reducing their service life. At the same time, the single metal pipe fittings are long, and transportation is time-consuming and labor-intensive, making them inconvenient to install and lay out.

[0004] Therefore, in view of the above technical problems, it is necessary to provide an auxiliary drainage pipe fitting for coal mine water prevention and control.

[0005] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0006] The utility model aims to provide an auxiliary drainage pipe fitting for preventing and controlling water in coal mines, which can solve the problems that the surface of metal pipe fittings is easily damaged during transportation and handling, and the transportation is time-consuming and labor-intensive.

[0007] In order to achieve the above-mentioned purpose, a specific embodiment of the utility model provides an auxiliary drainage pipe fitting for coal mine water prevention and control, including a metal inner pipe and an outer protective hose, the outer protective hose is slidably sleeved on the outside of the metal inner pipe, and a sliding telescopic structure is formed between the metal inner pipe and the outer protective hose, and a locking assembly is installed on the outer protective hose, and the locking assembly is used to fix the outer protective hose;

[0008] A limiting component is arranged between the metal inner tube and the outer protective rubber tube, and the limiting component enables the outer protective rubber tube to have a sealing effect after being fixed.

[0009] In one or more embodiments of the present invention, the limiting assembly includes a first boss, a second boss and a third boss, the first boss and the second boss are respectively fixedly connected to the two ends of the metal inner tube, and the third boss is fixedly connected to one end of the outer protective hose.

[0010] In one or more embodiments of the present invention, the outer diameters of the first and second bosses are greater than the outer diameter of the metal inner tube, and the inner diameter of the third boss is greater than the outer diameters of the first and second bosses.

[0011] In one or more embodiments of the present invention, an inner boss is fixedly connected to the inner wall of the third boss.

[0012] In one or more embodiments of the present invention, the inner diameter of the inner boss is larger than the outer diameter of the metal inner tube, and the inner diameter of the inner boss is smaller than the outer diameters of the first boss and the second boss.

[0013] In one or more embodiments of the present invention, the inner boss is a rubber boss.

[0014] In one or more embodiments of the present utility model, the locking assembly includes a clamp, a limiting groove is provided on the outer wall of the third boss, and the clamp is located inside the limiting groove;

[0015] A plurality of groups of bolt and nut fasteners are installed on the clamp.

[0016] In one or more embodiments of the present invention, a plurality of convex rings are fixedly connected to the outer wall of the outer protective hose.

[0017] In one or more embodiments of the present invention, one end of the metal inner tube is fixedly connected to a first flange, and one end of the outer protective hose away from the first flange is fixedly connected to a second flange.

[0018] In one or more embodiments of the present invention, the wall thickness of the metal inner tube is 0.2-0.5 cm, and the wall thickness of the outer protective hose is 0.3-0.8 cm.

[0019] Compared with the prior art, the auxiliary drainage pipe fittings for coal mine water prevention and control of the utility model can play a protective effect on the outside of the drainage pipe fittings through the external protective hose, preventing the surface of the drainage pipe fittings from being damaged during transportation and handling. At the same time, the external protective hose can slide and retract, so that the external protective hose can be used as a part of the drainage pipe fittings. This can not only ensure the service life of the drainage pipe fittings, but also reduce the weight and volume while ensuring the length of the drainage pipe fittings, thereby saving time and effort in transporting the drainage pipe fittings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 This is a structural diagram of an auxiliary drainage pipe for coal mine water prevention and control in one embodiment of the utility model;

[0022] Figure 2 This is a structural diagram of a metal inner tube of an auxiliary drainage pipe fitting for coal mine water prevention and control in one embodiment of the utility model;

[0023] Figure 3 This is a structural diagram of a protective hose of an auxiliary drainage pipe for coal mine water prevention and control in one embodiment of the utility model;

[0024] Figure 4 This is a structural diagram of a clamp of an auxiliary drainage pipe fitting for preventing and controlling water in a coal mine in one embodiment of the utility model;

[0025] Figure 5 It is a cross-sectional view of a first use state of an auxiliary drainage pipe member for preventing and controlling water in a coal mine in one embodiment of the utility model;

[0026] Figure 6 It is a cross-sectional view of a second usage state of an auxiliary drainage pipe fitting for coal mine water prevention and control in one embodiment of the utility model.

[0027] Description of main reference numerals:

[0028] 10. Metal inner tube; 11. First flange; 12. First boss; 13. Second boss; 20. Protective hose; 21. Second flange; 22. Raised ring; 23. Third boss; 231. Limiting groove; 232. Inner boss; 30. Hoop; 31. Bolt and nut fasteners. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0030] like Figures 1 to 6 As shown, an auxiliary drainage pipe fitting for coal mine water prevention and control in one embodiment of the utility model includes a metal inner pipe 10 and an outer protective hose 20. The outer protective hose 20 is slidably sleeved on the outside of the metal inner pipe 10, and a sliding telescopic structure is formed between the metal inner pipe 10 and the outer protective hose 20.

[0031] Specifically, Figures 1 to 3 Combination Figures 5-6As shown, when the outer protective hose 20 is integrally sleeved on the outside of the metal inner tube 10, the outer wall of the metal inner tube 10 can be protected to prevent the surface of the metal inner tube 10 from being damaged during transportation and handling, thereby ensuring the service life of the metal inner tube 10. When the outer protective hose 20 slides out to one side outside the metal inner tube 10, the effective length of the metal inner tube 10 can be extended to ensure the effective length of the drainage pipe fittings, thereby shortening the length of the metal inner tube 10 itself, thereby reducing the weight and volume of the drainage pipe fittings, bringing great convenience to the transportation and handling of the drainage pipe fittings, and facilitating the layout and installation of the drainage pipe fittings.

[0032] It is worth noting that the posture and direction of the drainage pipe can be flexibly adjusted through the external protective hose 20 to facilitate adaptation to the complex environment under the mine.

[0033] Preferably, in this embodiment, a plurality of convex rings 22 are evenly and fixedly connected to the outer wall of the outer protective hose 20. The plurality of convex rings 22 can not only enhance the structural strength of the outer protective hose 20 itself, but also improve the wear resistance of the outer protective hose 20 itself, thereby ensuring the service life of the outer protective hose 20.

[0034] like Figure 1 and Figure 4 As shown, a locking assembly is installed at one end of the outer protective hose 20, and the locking assembly includes a clamp 30. A pair of through holes are opened on the clamp 30, and bolt and nut fasteners 31 are installed on the pair of through holes. The bolt and nut fasteners 31 can be used to tighten and loosen the clamp 30.

[0035] Specifically, the outer protective hose 20 is on the metal inner tube 10, and one end of the outer protective hose 20 can be fixed by a clamp 30, so as to achieve locking between the metal inner tube 10 and the outer protective hose 20, thereby ensuring the stability of the structure.

[0036] A limiting groove 231 is formed on the outer wall of the third boss 23 , and the clamp 30 is clamped tightly inside the limiting groove 231 . The clamp 30 will not slide inside the limiting groove 231 , so that the locking effect of the clamp 30 is better.

[0037] like Figure 2 and Figure 3 As shown, a limiting assembly is arranged between the metal inner tube 10 and the outer protective hose 20, and the limiting assembly includes a first boss 12, a second boss 13 and a third boss 23. The first boss 12 and the second boss 13 are respectively fixedly connected to the two ends of the metal inner tube 10, and the third boss 23 is fixedly connected to one end of the outer protective hose 20.

[0038] The outer diameters of the first boss 12 and the second boss 13 are equal and larger than the outer diameter of the metal inner tube 10, the third boss 23 is equal to the inner diameter of the outer protective hose 20 and the inner diameter of the third boss 23 is larger than the outer diameters of the first boss 12 and the second boss 13, that is, the first boss 12 and the second boss 13 will not affect the sliding and telescopic movement of the outer protective hose 20 on the metal inner tube 10.

[0039] Combination Figure 5 and Figure 6 As shown, an inner boss 232 is fixedly connected to the inner wall of the third boss 23, wherein the inner diameter of the inner boss 232 is larger than the outer diameter of the metal inner tube 10, and the inner diameter of the inner boss 232 is smaller than the outer diameters of the first boss 12 and the second boss 13. In other words, when the inner boss 232 follows the outer protective rubber tube 20 to slide on the metal inner tube 10, it will be blocked by the first boss 12 and the second boss 13, making it difficult for the outer protective rubber tube 20 to slip off the metal inner tube 10.

[0040] In addition, when the outer protective hose 20 is slidably sleeved on the metal inner tube 10, one side of the inner boss 232 can be tightly attached to one side of the first boss 12. When the outer protective hose 20 slides out to one side, the other side of the inner boss 232 can be tightly attached to one side of the second boss 13. In this way, a sealing structure can be formed to improve the sealing effect between the metal inner tube 10 and the outer protective hose 20.

[0041] Preferably, the inner boss 232 is a rubber boss. When the clamp 30 clamps and fixes one end of the outer protective hose 20, the inner boss 232 can be pressed by the clamp 30, so that the inner boss 232 and the outer surface of the metal inner tube 10 are in close contact, thereby forming a sealing effect. In this way, a double sealing effect can be achieved between the metal inner tube 10 and the outer protective hose 20 to avoid leakage and ensure the safe and stable use of the drainage pipe fitting.

[0042] One end of the metal inner tube 10 is fixedly connected to a first flange 11, and one end of the outer protective hose 20 away from the first flange 11 is fixedly connected to a second flange 21. The first flange 11 and the second flange 21 facilitate the splicing of drainage pipe fittings.

[0043] Preferably, the wall thickness of the metal inner tube 10 is 0.2-0.5 cm, and the wall thickness of the outer protective rubber tube 20 is 0.3-0.8 cm.

[0044] When in use, during the transportation and handling of the drainage pipe fitting to the mine, the outer protective hose 20 is integrally sleeved on the outside of the metal inner pipe 10, which can protect the outer wall of the outer protective hose 20. During the installation and laying process, the clamp 30 can be loosened to make the outer protective hose 20 lose its fixation, and then the outer protective hose 20 is slid out to one side, and the outer protective hose 20 is fixed again with the clamp 30, so that the outer protective hose 20 can be used as an extension of the metal inner pipe 10. The drainage pipe fitting is composed of a retractable metal inner pipe 10 and an outer protective hose 20, and the installation and laying are more flexible and convenient.

[0045] The auxiliary drainage pipe fittings for coal mine water prevention and control of the utility model can play a protective effect on the outside of the drainage pipe fittings through the outer protective hose 20, preventing the surface of the drainage pipe fittings from being damaged during transportation and handling. At the same time, the outer protective hose 20 can slide and retract, so that the outer protective hose 20 can be used as a part of the drainage pipe fittings. This can not only ensure the service life of the drainage pipe fittings, but also reduce the weight while ensuring the length of the drainage pipe fittings, thereby saving time and effort in transporting the drainage pipe fittings.

[0046] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0047] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An auxiliary drainage pipe fitting for coal mine water prevention and control, characterized in that: It comprises a metal inner tube and an outer protective hose, wherein the outer protective hose is slidably sleeved on the outside of the metal inner tube, a sliding telescopic structure is formed between the metal inner tube and the outer protective hose, and a locking assembly is installed on the outer protective hose, and the locking assembly is used to fix the outer protective hose; A limiting component is arranged between the metal inner tube and the outer protective rubber tube, and the limiting component enables the outer protective rubber tube to have a sealing effect after being fixed.

2. The auxiliary drainage pipe fitting for coal mine water prevention and control according to claim 1, characterized in that: The limiting assembly includes a first boss, a second boss and a third boss. The first boss and the second boss are respectively fixedly connected to two ends of the metal inner tube, and the third boss is fixedly connected to one end of the outer protective rubber hose.

3. The auxiliary drainage pipe fitting for coal mine water prevention and control according to claim 2, characterized in that: The outer diameters of the first and second bosses are larger than the outer diameter of the metal inner tube, and the inner diameter of the third boss is larger than the outer diameters of the first and second bosses.

4. The auxiliary drainage pipe fitting for coal mine water prevention and control according to claim 3, characterized in that: An inner boss is fixedly connected to the inner wall of the third boss.

5. The auxiliary drainage pipe fitting for coal mine water prevention and control according to claim 4, characterized in that: The inner diameter of the inner boss is larger than the outer diameter of the metal inner tube, and the inner diameter of the inner boss is smaller than the outer diameters of the first boss and the second boss.

6. The auxiliary drainage pipe fitting for coal mine water prevention and control according to claim 4, characterized in that: The inner boss is a rubber boss.

7. The auxiliary drainage pipe fitting for coal mine water prevention and control according to claim 2, characterized in that: The locking assembly comprises a hoop, a limiting groove is provided on the outer wall of the third boss, and the hoop is located inside the limiting groove; A plurality of groups of bolt and nut fasteners are installed on the clamp.

8. The auxiliary drainage pipe fitting for coal mine water prevention and control according to claim 1, characterized in that: A plurality of convex rings are fixedly connected to the outer wall of the outer protective rubber hose.

9. The auxiliary drainage pipe fitting for coal mine water prevention and control according to claim 1, characterized in that: One end of the metal inner tube is fixedly connected to a first flange, and one end of the outer protective rubber hose away from the first flange is fixedly connected to a second flange.

10. The auxiliary drainage pipe fitting for coal mine water prevention and control according to claim 1, characterized in that: The wall thickness of the metal inner tube is 0.2-0.5 cm, and the wall thickness of the outer protective rubber tube is 0.3-0.8 cm.

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