Mine underground production pipeline interface device and method

Abstract

The present invention discloses an underground mine production pipeline interface device, including an interface pipe and an interface assembly, wherein the interface assembly is installed at the port of the interface pipe. In the interface assembly, an operating box is fixed to the outside of the installation pipe, a sliding sleeve is slidably installed on the periphery of the installation pipe, a rotating sleeve is rotatably installed on the sliding sleeve and an inner wall is provided with an internal thread, an external thread matching the internal thread is provided at the port of the production pipeline, and a driving mechanism is matched with the operating box and is dynamically connected to the sliding sleeve and the rotating sleeve. Also disclosed is an underground mine production pipeline interface method, including designing a production pipeline laying route, assembling an interface device that meets the connection requirements, splicing the production pipeline, and repairing damaged production pipelines. The present application can meet the different functional requirements of each production pipeline, effectively improve the assembly and replacement speed of each production pipeline, and reduce the construction difficulty of replacing and maintaining the production pipeline.

Description

Technical Field

[0001] The present invention relates to the technical field of mine production supporting equipment construction, in particular to an underground mine production pipeline interface device and method. Background Art

[0002] During mining construction above and below the mine, it is necessary to install compressed air pipelines, water supply pipelines and other production pipelines in the tunnels inside the mine to meet the production and fire-fighting functions in the mine. During the construction of production pipelines in traditional mines, in order to ensure the stable connection of the corresponding production pipelines, common three-way pipe fittings, straight-through pipe fittings, and four-way pipe fittings on the market are often used to connect and combine the pipelines. When it comes to monitoring the pressure of the fluid in the pipeline, controlling the flow rate of the fluid and pressurizing it in the middle, it is necessary to install a pressure pump, a pressure gauge, a flow control valve, etc. at the corresponding position of the pipeline, and it is necessary to open holes in the production pipeline to ensure the installation of various functional components. There are many inconveniences at the construction and operation levels.

[0003] Moreover, during the construction process of laying and connecting pipelines, they need to be laid out in the order of the tunnel extension status to ensure that components such as tee pipe fittings, straight pipe fittings, and four-way pipe fittings are stably connected to the upstream and downstream production pipelines. When carrying out simultaneous construction in multiple locations, it is easy to cause the production pipelines and interface pipe fittings to be difficult to connect stably, resulting in many inconveniences at the construction level. Moreover, during the production process, when the production pipelines or interface pipe fittings are damaged and need to be replaced, the traditional construction method requires the dismantling of multiple sections of the upstream and downstream production pipelines for reassembly, which is inefficient. Summary of the Invention

[0004] In view of the above-mentioned shortcomings in the prior art, the purpose of the present invention is to provide an underground mine production pipeline interface device and method, which can meet the different functional requirements of each production pipeline, effectively improve the assembly and replacement speed of each production pipeline, and reduce the construction difficulty of replacing and maintaining the production pipeline.

[0005] The technical solution adopted by the present invention to achieve the above-mentioned object is: a mine underground production pipeline interface device, including an interface pipe fitting and an interface assembly, the interface assembly is matched with the port of the interface pipe fitting and is used to seal and connect the port of the production pipeline; the interface assembly includes a mounting pipe fitting, an operation box, a sliding sleeve, a rotating sleeve, and a driving mechanism, one end of the mounting pipe fitting is matched with the port of the interface pipe fitting, the operation box is fixedly mounted on the outside of the mounting pipe fitting, the sliding sleeve is slidably mounted on the periphery of the mounting pipe fitting, the rotating sleeve is rotatably mounted on the sliding sleeve and arranged on the periphery of the mounting pipe fitting, the inner side wall of the rotating sleeve is provided with an internal thread and passes through the operation box and is arranged, the port of the production pipeline is provided with an external thread that matches the internal thread, the rotating sleeve extending from the operation box is sealed and screwed together with the external thread on the production pipeline, the driving mechanism is matched with the operation box and is dynamically connected to the sliding sleeve and the rotating sleeve, and the driving mechanism drives the sliding sleeve to slide along the axial direction of the mounting pipe fitting while driving the rotating sleeve to rotate around the axial direction of the mounting pipe fitting.

[0006] In some of these implementations, in order to ensure that the interface pipe fittings can effectively connect the production pipelines arranged in different directions underground in the mine and ensure that the various production pipelines underground in the mine are stably installed according to the designed position, the following technical solutions are provided.

[0007] The interface pipe fittings include tee pipe fittings, cross pipe fittings, and straight pipe fittings according to the requirements of splicing upstream and downstream production pipelines. A first connecting flange is welded at the ports of the tee pipe fittings, cross pipe fittings, and straight pipe fittings. A second connecting flange is also welded at the inner end of the mounting pipe fitting of the interface assembly. The second connecting flange on the mounting pipe fitting is fixedly connected to the first connecting flange by a bolt assembly.

[0008] In some of these implementations, in order to facilitate the control or monitoring of the flow, on / off, and fluid pressure of high-pressure air and water supply in the production pipeline, and to facilitate mid-stream pressurization of the air or water supply in the production pipeline, the following technical solutions are also provided.

[0009] Connecting pipes, a flow control valve, a pressure gauge, and a pressure pump are also provided. A third connecting flange is welded at both ends of the connecting pipes, and the third connecting flange is fixedly connected to the first connecting flange or the second connecting flange through a bolt assembly. The flow control valve, pressure gauge, and pressure pump are respectively installed on different connecting pipes.

[0010] In some implementations, when two groups of the first connecting flange, the second connecting flange, and the third connecting flange are connected together, in order to ensure the sealing effect at the connection between the two groups of connecting flanges, the following technical solution is also provided.

[0011] The outer side walls of the first connecting flange, the second connecting flange and the third connecting flange are all provided with an annular mounting groove, and a first sealing rubber ring is nested and clamped in the annular mounting groove.

[0012] In some of the implementations, when the rotating sleeve moves outward to the outermost end of the mounting pipe under the drive of the sliding sleeve, in order to avoid fluid leakage at the connection between the rotating sleeve and the mounting pipe, thereby affecting normal production in the mine, the following technical solution is provided.

[0013] A first limiting ring is fixedly connected to the inner end of the rotating sleeve, and a second limiting ring is fixedly connected to the outer end of the mounting pipe. The second limiting ring is arranged on the outer side of the first limiting ring. A second sealing rubber ring is sleeved on the mounting pipe, and the second sealing rubber ring and the second limiting ring remain in contact. When the rotating sleeve is at the outer end of the mounting pipe, the first limiting ring and the second sealing rubber ring remain in contact.

[0014] In some implementations, after the rotary sleeve and the port of the production pipeline are sealed and screwed together, the following technical solution is provided to prevent the transmitted fluid from leaking from the connection between the rotary sleeve and the production pipeline.

[0015] A third limiting ring is fixedly connected to the periphery of the port of the production pipeline, and the third limiting ring is arranged on the outside of the external thread. A third sealing rubber ring is nested in the third limiting ring. When the rotating sleeve is sealed and screwed to the external thread on the production pipeline, the outer end of the rotating sleeve remains in contact with the third sealing rubber ring.

[0016] In some implementations, in order to ensure that the sliding sleeve can slide stably along the mounting pipe and operate stably within a specific stroke range, and to ensure that the rotating sleeve can be stably mounted on the sliding sleeve in a relatively rotating manner, the following technical solutions are provided.

[0017] Two groups of limiting rings arranged side by side are fixedly connected to the periphery of the mounting pipe, and a guide slide rail arranged along the length direction of the mounting pipe is fixedly connected between the two groups of limiting rings. A guide slide groove matched with the guide slide rail is provided in the sliding sleeve; a nesting ring is fixedly connected to one end of the sliding sleeve, and the rotating sleeve is nested and combined with the nesting ring in a relative rotation manner.

[0018] In some of the implementations, in order to ensure that the driving mechanism can drive the sliding sleeve to slide along the axial direction of the installation pipe while driving the rotating sleeve to rotate around the axial direction of the installation pipe, thereby realizing the connection combination of the interface component and the production pipeline, or separating the interface component and the production pipeline from each other to facilitate the replacement of individual sections of the production pipeline or interface pipe fittings, the following technical solutions for the driving mechanism are provided.

[0019] The driving mechanism includes a driving sleeve, a first transmission gear, a second transmission gear, a mounting shaft, a driving gear, and a thick gear. A threaded groove is provided on the periphery of the sliding sleeve. The driving sleeve is rotatably installed in the operating box and is arranged on the periphery of the sliding sleeve. The driving sleeve is screwed to the threaded groove. The first transmission gear is fixedly installed on the periphery of the driving sleeve. The second transmission gear is fixedly installed on the periphery of the rotating sleeve. The mounting shaft is rotatably installed in the operating box. The driving gear and the thick gear are fixedly installed on the mounting shaft. The driving gear is meshed with the first transmission gear, and the thick gear is meshed with the second transmission gear. A driving shaft is also rotatably installed in the operating box. The outer end of the driving shaft extends out of the operating box and is fixedly connected to a spline shaft. The first bevel gear is fixedly connected to the driving shaft, and the second bevel gear that is meshed with the first bevel gear is fixedly connected to the mounting shaft.

[0020] In some implementations, after the sealing combination of the rotating sleeve and the production pipeline is completed, in order to prevent the loosening of the connection between the two due to operational errors, resulting in leakage of the transmitted fluid, the following relevant technical solutions are provided.

[0021] A mounting plate is also fixedly installed in the operating box, and the drive shaft is rotatably installed on the mounting plate. A locking mechanism is also installed on the mounting plate, and the locking mechanism includes a locking gear, a sliding plate, a locking rack, a reset spring, and an operating key. The locking gear is fixedly installed on the drive shaft, and the sliding plate is slidably installed on the mounting plate. The reset spring is arranged on the mounting plate and its two ends are respectively fixed to the sliding plate and the inner wall of the operating box. The locking rack is fixed to the sliding plate and remains meshed and locked with the locking gear. The operating key is fixed to the sliding plate and extends to the outside of the operating box.

[0022] A method for connecting production pipelines in an underground mine is provided, wherein an underground production pipeline interface device is used to connect production pipelines, and the method comprises the following steps:

[0023] S1, design the laying route of production pipelines

[0024] Design the production pipeline laying route based on the compressed air and water supply requirements of each tunnel in the mine so that the production pipeline passes through each compressed air and water supply point. At the same time, determine the interface pipe fittings and connecting pipe fittings required for connecting adjacent production pipelines.

[0025] S2, assemble the interface device that meets the connection requirements

[0026] The interface pipes and connecting pipes required at each interface position determined in step S1 are assembled and spliced ​​together, and the interface components are assembled to the ports to connect with the production pipelines to form an interface device that meets the design requirements;

[0027] S3, splicing construction of production pipelines

[0028] The interface device assembled in step S2 is assembled to the connection of the adjacent production pipelines, and the corresponding sliding sleeve and rotating sleeve are driven by the operating drive mechanism to realize the sealed rotation connection between the rotating sleeve and the production pipeline, thereby ensuring that the production pipelines at the connection are stably connected to the interface pipe fitting.

[0029] S4, replace damaged production pipelines and interface fittings

[0030] During the underground production process of a mine, when some production pipelines or interface fittings are damaged, the sliding sleeve and the rotating sleeve are mobilized by operating the driving mechanism to cancel the connection between the rotating sleeve and the corresponding production pipeline, so as to facilitate the replacement of the separated production pipeline or interface fittings.

[0031] The beneficial effects of the present invention are as follows: by assembling and combining interface pipes and connecting pipes of different structural types and functional types, the different functional requirements of each production pipeline can be met. The setting of the interface assembly, by operating the driving mechanism to adjust the posture of the interface assembly, can achieve rapid connection between each production pipeline and the interface pipe fitting. At the same time, the interface assembly is in a retracted state before being connected to the production pipeline, which can ensure that the combined interface device with the corresponding posture is stably assembled to the gap between adjacent production pipelines, further improving the rapid assembly of each production pipeline. Based on the above technology, the replacement of damaged production pipelines or interface pipe fittings can be completed quickly, reducing the construction difficulty of replacing and maintaining production pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the structure of the present invention when combined with production pipelines and connecting pipes;

[0033] Figure 2 Schematic diagram of the structure of a tee pipe fitting;

[0034] Figure 3 Schematic diagram of the structure of a four-way pipe fitting;

[0035] Figure 4 It is a structural diagram of a straight-through pipe fitting;

[0036] Figure 5 Connecting pipes for installing flow control valves;

[0037] Figure 6 Connecting pipes for installing pressure gauges;

[0038] Figure 7 Connecting pipes for installing a booster pump;

[0039] Figure 8 by Figure 1 Schematic diagram of the structure after sectioning as the basis;

[0040] Figure 9 for Figure 8 Schematic diagram of the structure of the interface component;

[0041] Figure 10 For Figure 9 Based on the above, the schematic diagram of the structure of the operation box and the interior of the operation box is shown;

[0042] Figure 11 For Figure 10 Schematic diagram of the structure after further sectioning;

[0043] Figure 12 For Figure 9 Based on the above, a schematic diagram of the structure of the sliding sleeve and the rotating sleeve is shown;

[0044] Figure 13 For Figure 9 Based on the diagram, a schematic diagram of the structure in which the pipe fittings are installed.

[0045] In the figure: 1 interface pipe, 11 first connecting flange, 21 mounting pipe, 211 second connecting flange, 212 second limiting ring, 213 limiting ring, 214 guide rail, 22 operation box, 221 mounting plate, 23 sliding sleeve, 231 nesting ring, 24 rotating sleeve, 241 internal thread, 242 first limiting ring, 251 driving sleeve, 252 first transmission gear, 253 second transmission gear, 254 mounting shaft, 255 driving gear, 256 thick gear, 257 driving shaft, 2 58 first bevel gear, 259 second bevel gear, 261 spline shaft, 262 countersunk groove, 271 locking gear, 272 sliding plate, 273 locking rack, 274 return spring, 275 operating key, 3 production pipeline, 31 external thread, 32 third limiting ring, 41 connecting pipe fitting, 411 third connecting flange, 42 flow control valve, 43 pressure gauge, 44 booster pump, 51 mounting through hole, 52 bolt assembly, 53 first sealing rubber ring, 54 second sealing rubber ring, 55 third sealing rubber ring. DETAILED DESCRIPTION

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0047] See also Figure 1-13 , and combined with the following embodiments, the structural design, operating principle and beneficial effects that can be achieved of this application are explained. Example

[0048] A mine underground production pipeline interface device, including an interface pipe 1, an interface assembly, the interface assembly is matched with the port of the interface pipe 1, and the interface assembly is used to seal the port of the production pipeline 3; the interface assembly includes a mounting pipe 21, an operating box 22, a sliding sleeve 23, a rotating sleeve 24, and a driving mechanism. One end of the mounting pipe 21 is matched with the port of the interface pipe 1, the operating box 22 is fixedly installed on the outside of the mounting pipe 21, the sliding sleeve 23 is slidably installed on the periphery of the mounting pipe 21, and the rotating sleeve 24 is rotatably installed on the sliding sleeve 23 and arranged It is placed on the periphery of the mounting pipe 21, and the inner side wall of the rotating sleeve 24 is provided with an internal thread 241 and is arranged through the operating box 22. The port of the production pipeline 3 is provided with an external thread 31 that is compatible with the internal thread 241. The rotating sleeve 24 extending out of the operating box 22 is sealed and screwed with the external thread 31 on the production pipeline 3. The driving mechanism is installed in the operating box 22 and is dynamically connected with the sliding sleeve 23 and the rotating sleeve 24. The driving mechanism drives the sliding sleeve 23 to slide axially along the mounting pipe 21 while driving the rotating sleeve 24 to rotate around the axial direction of the mounting pipe 21.

[0049] Each port of the interface pipe fitting 1 can be matched with the interface component and connected to the production pipeline 3 in the corresponding direction through the interface component to meet the production requirements of the production pipeline 3 for stable air and water transportation, thereby realizing the stable arrangement of the production pipeline 3 in the criss-crossing tunnels in the mine.

[0050] When the adjacent production pipelines 3 are stably connected through the interface pipe fitting 1 equipped with the interface assembly, the sliding sleeve 23 and the rotating sleeve 24 in the interface assembly are initially located on the inner side of the mounting pipe fitting 21. When the sliding sleeve 23 is driven to slide outward by operating the driving mechanism, the rotating sleeve 24 will be driven to move outward synchronously. At the same time, the driving mechanism will drive the rotating sleeve 24 to rotate to achieve stable screwing of the rotating sleeve 24, and then the rotating sleeve 24 will extend out of the operating box 22 to achieve a sealed connection with the external thread 31 at the port of the production pipeline 3, so as to ensure stable transportation of the fluid therein. Example

[0051] In order to ensure that the interface pipe 1 can effectively connect the production pipelines 3 arranged at different positions underground in the mine, and to ensure that each production pipeline 3 underground in the mine is stably installed according to the designed position, the following technical solution is provided.

[0052] The interface pipe fitting 1 includes a tee pipe fitting, a cross pipe fitting, and a straight pipe fitting according to the requirements of splicing the upstream and downstream production pipelines 3. The first connecting flange 11 is welded at the port of the tee pipe fitting, the cross pipe fitting, and the straight pipe fitting. The inner end of the mounting pipe fitting 21 of the interface component is also welded with a second connecting flange 211. The second connecting flange 211 on the mounting pipe fitting 21 is fixedly connected to the first connecting flange 11 by a bolt assembly 52.

[0053] When installing production pipelines 3 underground in a mine, including compressed air pipelines, water supply pipelines, exhaust pipelines, and sewer pipelines, they need to be extended and installed on the top or side walls of each tunnel underground to meet the air and water supply requirements in various locations. Therefore, straight-through pipe fittings are needed to connect the two adjacent groups of production pipelines 3, or three-way pipe fittings and four-way pipe fittings are needed to meet the stable connection of production pipelines 3 in different directions.

[0054] The bolt assembly 52 is used to connect and assemble the first connecting flange 11 and the second connecting flange 211, so that the interface assembly can be installed at the ports of the straight pipe fitting, the three-way pipe fitting, and the four-way pipe fitting, so as to facilitate the stable connection of the interface assembly with each production pipeline 3.

[0055] In order to facilitate the control or monitoring of the flow, on / off and fluid pressure of the high-pressure air and water supply in the production pipeline 3, and to facilitate the mid-way pressurization of the air or water supply in the production pipeline 3, the following technical solutions are also provided.

[0056] A connecting pipe fitting 41, a flow control valve 42, a pressure gauge 43, and a pressure pump 44 are also provided. A third connecting flange 411 is welded to both ends of the connecting pipe fitting 41, and the third connecting flange 411 is fixedly connected to the first connecting flange 11 or the second connecting flange 211 through a bolt assembly 52. ​​The flow control valve 42, the pressure gauge 43, and the pressure pump 44 are respectively installed on different connecting pipe fittings 41.

[0057] According to design requirements, a connecting pipe can be added between the interface assembly and the corresponding installation pipe fitting 21, that is, the connecting pipe fitting 41 equipped with a flow control valve 42, a pressure gauge 43, and a pressure pump 44 is connected to the first connecting flange 11 and the second connecting flange 211 of the two sections through the third connecting flange 411, thereby meeting specific functional requirements.

[0058] The third connecting flange 411 is similarly fixedly assembled with the first connecting flange 11 and the second connecting flange 211 via a bolt assembly 52. ​​To ensure that the bolt assembly 52 can stably connect the first connecting flange 11, the second connecting flange 211, and the third connecting flange 411, multiple groups of mounting through-holes 51 are evenly distributed on the first connecting flange 11, the second connecting flange 211, and the third connecting flange 411. The bolt assembly 52 includes a matching screw and nut, and a gasket sleeved on the screw. The gasket is arranged on the outside of the two groups of spliced ​​flanges, and the two groups of connecting flanges are fixedly connected through the locking effect of the screw and nut. Example

[0059] When two groups of the first connecting flange 11, the second connecting flange 211, and the third connecting flange 411 are connected and combined, in order to ensure the sealing effect at the connection between the two groups of connecting flanges, the following technical solution is also provided.

[0060] An annular mounting groove is formed on the outer side walls of the first connecting flange 11 , the second connecting flange 211 and the third connecting flange 411 , and a first sealing rubber ring 53 is nested and clamped in the annular mounting groove.

[0061] When the two sets of connecting flanges are fixedly connected by the bolt assembly 52, the first sealing rubber ring 53 between the two sets of relatively arranged annular mounting grooves will be squeezed and deformed. The deformed first sealing rubber ring 53 can effectively divide the gap at the interface to prevent the fluid transmitted in the corresponding production pipeline 3, interface assembly, installation pipe 21, and connecting pipe 41 from leaking from the interface.

[0062] When the rotating sleeve 24 moves outward to the outermost end of the mounting pipe 21 driven by the sliding sleeve 23, in order to avoid fluid leakage at the connection between the rotating sleeve 24 and the mounting pipe 21, thereby affecting normal production in the mine, the following technical solution is provided.

[0063] A first limiting ring 242 is fixedly connected to the inner end of the rotating sleeve 24, and a second limiting ring 212 is fixedly connected to the outer end of the mounting pipe 21. The second limiting ring 212 is arranged on the outer side of the first limiting ring 242. A second sealing rubber ring 54 is sleeved on the mounting pipe 21, and the second sealing rubber ring 54 remains in contact with the second limiting ring 212. When the rotating sleeve 24 is at the outer end of the mounting pipe 21, the first limiting ring 242 remains in contact with the second sealing rubber ring 54.

[0064] The setting of the first limiting ring 242 and the second limiting ring 212 can ensure that the rotating sleeve 24 moves stably within a specific range under the drive of the sliding sleeve 23, avoiding the rotating sleeve 24 from being separated from the mounting pipe 21 and affecting the overall stability of the interface assembly.

[0065] When the first limiting ring 242 and the second limiting ring 212 are fitted together, the second sealing rubber ring 54 can be squeezed and deformed, thereby enabling the second sealing rubber ring 54 to effectively seal the connection gap between the first limiting ring 242 and the second limiting ring 212 to prevent the transmitted fluid from leaking therefrom.

[0066] After the rotating sleeve and the port of the production pipeline 3 are sealed and screwed together, in order to prevent the transmitted fluid from leaking from the connection between the rotating sleeve and the production pipeline 3, the following technical solution is provided.

[0067] A third limiting ring 32 is fixedly connected to the periphery of the port of the production pipeline 3, and the third limiting ring 32 is arranged on the outside of the external thread 31. A third sealing rubber ring 55 is nested in the third limiting ring 32. When the rotating sleeve 24 is sealed and screwed with the external thread 31 on the production pipeline 3, the outer end of the rotating sleeve 24 remains in contact with the third sealing rubber ring 55.

[0068] When the rotating sleeve 24 and the production pipeline 3 are screwed together, the third limiting ring 32 can stably limit the rotating sleeve 24. At the same time, the third limiting ring 32 and the rotating sleeve 24 squeeze and deform the third sealing rubber ring 55, so that the third sealing rubber ring 55 seals the connection gap between the rotating sleeve 24 and the third limiting ring 32 to prevent the transmitted fluid from leaking from there. Example

[0069] In order to ensure that the sliding sleeve 23 can slide stably along the mounting pipe 21 and operate stably within a specific stroke range, and to ensure that the rotating sleeve 24 can be stably installed on the sliding sleeve 23 in a relatively rotating manner, the following technical solution is provided.

[0070] Two groups of limiting rings 213 arranged side by side are fixedly connected to the periphery of the mounting pipe 21, and a guide rail 214 arranged along the length direction of the mounting pipe 21 is fixedly connected between the two groups of limiting rings 213. A guide groove that is matched with the guide rail 214 is provided in the sliding sleeve 23; one end of the sliding sleeve 23 is fixedly connected to a nesting ring 231, and the rotating sleeve 24 is nested and combined with the nesting ring 231 in a relative rotation manner.

[0071] The setting of the guide rail 214 and the guide groove can ensure that the sliding sleeve 23 slides stably on the guide rail 214. The arrangement of the two sets of limit rings 213 can ensure that the sliding sleeve 23 runs stably in the gap between them. The arrangement of the nested ring 231 can ensure that the rotating sleeve 24 rotates stably on the sliding sleeve 23. While the sliding sleeve 23 slides synchronously on the rotating sleeve 24, the rotating sleeve 24 can be ensured to rotate freely, thereby ensuring that the internal thread 241 on the inner side of the rotating sleeve 24 is stably screwed with the external thread 31 on the production pipeline 3. Example

[0072] In order to ensure that the driving mechanism can drive the sliding sleeve 23 to slide axially along the installation pipe 21 while driving the rotating sleeve 24 to rotate axially around the installation pipe 21, thereby realizing the connection combination of the interface component and the production pipeline 3, or separating the interface component and the production pipeline 3 from each other, so as to facilitate the replacement of individual sections of the production pipeline 3 or the interface pipe 1, the following technical solution for the driving mechanism is provided.

[0073] The driving mechanism includes a driving sleeve 251, a first transmission gear 252, a second transmission gear 253, a mounting shaft 254, a driving gear 255, and a thick gear 256. A threaded groove is provided on the periphery of the sliding sleeve 23. The driving sleeve 251 is rotatably mounted in the operating box 22 and arranged on the periphery of the sliding sleeve 23. The driving sleeve 251 is screwed together with the threaded groove. The first transmission gear 252 is fixedly mounted on the periphery of the driving sleeve 251. The second transmission gear 253 is fixedly mounted on the periphery of the rotating sleeve 24. The mounting shaft 254 is rotatably mounted on the operating box 22. In the operating box 22, the driving gear 255 and the thick gear 256 are fixedly mounted on the mounting shaft 254, the driving gear 255 is meshed with the first transmission gear 252, and the thick gear 256 is meshed with the second transmission gear 253; a driving shaft 257 is also rotatably mounted in the operating box 22, the outer end of the driving shaft 257 extends outward from the outside of the operating box 22 and is fixedly connected to a spline shaft 261, a first bevel gear 258 is fixedly connected to the driving shaft 257, and a second bevel gear 259 is fixedly connected to the mounting shaft 254 and is meshed with the first bevel gear 258.

[0074] A recessed groove 262 is provided on the top of the operating box 22, and the spline shaft 261 is arranged in the recessed groove 262, which can effectively prevent the connection between the rotating sleeve 24 and the production pipeline 3 from being loosened due to operational errors. When operating the drive mechanism, a wrench or electric wrench matching the spline shaft 261 is plugged into the spline shaft 261 to stably rotate the spline shaft 261 and the drive shaft 257 fixed to the spline shaft 261. The combination of the first bevel gear 258 and the second bevel gear 259 drives the installation shaft 254 and the drive gear 255 and the thick gear 256 thereon to stably rotate.

[0075] When the driving gear 255 rotates, it can drive the first transmission gear 252 and the driving sleeve 251 to rotate, thereby driving the sliding sleeve 23 to slide axially along the mounting pipe 21. At the same time, the thick gear 256 can drive the second transmission gear 253 to rotate stably, thereby driving the rotating sleeve 24 fixed to the second transmission gear 253 to rotate stably. Since the thick gear 256 has a larger gear thickness, it can ensure that the thick gear 256 always remains in meshing with the second transmission gear 253 during the process of the sliding sleeve 23 driving the rotating sleeve 24 to slide, thereby driving the rotating sleeve to slide stably, thereby achieving outward rotation of the rotating sleeve 24, thereby achieving a sealed rotational connection between the rotating sleeve 24 and the end of the production pipeline 3.

[0076] When canceling the connection between the interface assembly and the production pipeline 3 to facilitate the replacement of a partially damaged production pipeline 3 or interface pipe fitting 1, the drive shaft 257 is controlled to rotate in the opposite direction to cancel the connection between the rotating sleeve 24 and the production pipeline 3, thereby separating the interface pipe fitting 1 and the production pipeline 3, making it convenient to quickly replace the damaged parts.

[0077] After the sealing combination of the rotating sleeve 24 and the production pipeline 3 is completed, in order to prevent the loosening of the connection between the two due to operational errors, which may lead to leakage of the transmitted fluid, the following relevant technical solutions are provided.

[0078] A mounting plate 221 is also fixedly installed in the operating box 22, and the drive shaft 257 is rotatably installed on the mounting plate 221. A locking mechanism is also installed on the mounting plate 221, and the locking mechanism includes a locking gear 271, a sliding plate 272, a locking rack 273, a return spring 274, and an operating key 275. The locking gear 271 is fixedly installed on the drive shaft 257, and the sliding plate 272 is slidably installed on the mounting plate 221. The return spring 274 is arranged on the mounting plate 221 and its two ends are respectively fixed to the sliding plate 272 and the inner wall of the operating box 22. The locking rack 273 is fixed to the sliding plate 272 and remains meshed and locked with the locking gear 271. The operating key 275 is fixed to the sliding plate 272 and extends to the outside of the operating box 22.

[0079] In the natural state, due to the effect of the reset spring 274, the sliding plate 272 and the locking rack 273 thereon can be driven to move toward the side of the locking gear 271, thereby keeping the locking gear 271 and the locking rack 273 locked, and effectively locking the locking gear 271 and the drive shaft 257 to prevent invalid rotation that affects the connection effect of the interface pipe 1, the interface assembly and the production pipeline 3.

[0080] When it is necessary to drive the operating shaft to control the state of the interface component, the operating key 275 is pressed to drive the locking rack 273 to slide on the mounting plate 221, compressing the reset spring 274 while canceling the locking effect between the locking rack 273 and the locking gear 271. At this time, the driving shaft 257 can be operated to rotate freely. Example

[0081] A method for connecting an underground mine production pipeline is characterized in that the production pipeline 3 is connected using an underground mine production pipeline 3 interface device, and includes the following steps:

[0082] S1, design the laying route of production pipeline 3

[0083] According to the compressed air and water supply requirements of each tunnel in the mine, the laying route of the production pipeline 3 is designed so that the production pipeline 3 passes through each compressed air and water supply point. At the same time, the types of interface pipe fittings 1 and connecting pipe fittings 41 required for connecting adjacent production pipelines 3 are determined;

[0084] S2, assemble the interface device that meets the connection requirements

[0085] The interface pipe fittings 1 and connecting pipe fittings 41 required at each interface position determined in step S1 are assembled and assembled, and the interface assembly is assembled to the port to connect with the production pipeline 3 to form an interface device that meets the design requirements;

[0086] S3, splicing construction of production pipeline 3

[0087] Assemble the interface device assembled in step S2 to the connection of the adjacent production pipeline 3, and operate the corresponding sliding sleeve 23 and rotating sleeve 24 by operating the driving mechanism to achieve a sealed rotation connection between the rotating sleeve 24 and the production pipeline 3, thereby ensuring that each production pipeline 3 at the connection is stably connected to the interface pipe fitting 1.

[0088] S4, replace the damaged production pipeline 3 and interface pipe 1

[0089] During the underground production process of the mine, when part of the production pipeline 3 or the interface pipe fitting 1 is damaged, the sliding sleeve 23 and the rotating sleeve 24 are mobilized by operating the driving mechanism to operate, and the connection between the rotating sleeve 24 and the corresponding production pipeline 3 is cancelled to facilitate the replacement of the separated production pipeline 3 or the interface pipe fitting 1.

[0090] The interface pipe fitting 1 has various structural types, such as straight-through pipe fittings, three-way pipe fittings, and four-way pipe fittings. Depending on the functional requirements of the assembly, the connecting pipe fitting 41 can be equipped with a flow control valve 42, a pressure gauge 43, and a pressure pump 44. Therefore, by assembling and combining interface pipe fittings 1 and connecting pipe fittings 41 of different structural and functional types, the different functional requirements of each production pipeline 3 can be met.

[0091] The setting of the interface component, by operating the driving mechanism to adjust the posture of the interface component, can achieve rapid connection between each production pipeline 3 and the interface pipe fitting 1. At the same time, the interface component is in a retracted state before being connected to the production pipeline 3, which can ensure that the combined interface device with the corresponding posture is stably assembled into the gap between adjacent production pipelines 3, further improving the rapid assembly of each production pipeline 3.

[0092] Based on the above technology, the damaged production pipeline 3 or interface pipe 1 can be quickly replaced, reducing the construction difficulty of replacing and maintaining the production pipeline 3.

[0093] It will be apparent 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 invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0094] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method 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 can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A mine underground production pipeline interface device, characterized by: The invention comprises an interface pipe (1) and an interface assembly, wherein the interface assembly is matched with and installed at the port of the interface pipe (1), and the interface assembly is used to seal and connect the port of the production pipeline (3); the interface assembly comprises a mounting pipe (21), an operating box (22), a sliding sleeve (23), a rotating sleeve (24), and a driving mechanism, one end of the mounting pipe (21) is matched with the port of the interface pipe (1), the operating box (22) is fixedly installed on the outside of the mounting pipe (21), the sliding sleeve (23) is slidably installed on the periphery of the mounting pipe (21), and the rotating sleeve (24) is rotatably installed on the sliding sleeve (23) and arranged on the mounting pipe. The outer periphery of the component (21), the inner side wall of the rotating sleeve (24) is provided with an internal thread (241) and is arranged through the operation box (22), the port of the production pipeline (3) is provided with an external thread (31) adapted to the internal thread (241), the rotating sleeve (24) extending out of the operation box (22) is kept in sealed rotation connection with the external thread (31) on the production pipeline (3), the driving mechanism is matched with the operating box (22) and is connected to the sliding sleeve (23) and the rotating sleeve (24) in power, and the driving mechanism drives the sliding sleeve (23) to slide along the axial direction of the installation pipe (21) while driving the rotating sleeve (24) to rotate around the axial direction of the installation pipe (21); The driving mechanism comprises a driving sleeve (251), a first transmission gear (252), a second transmission gear (253), a mounting shaft (254), a driving gear (255), and a thick gear (256). A threaded groove is provided on the periphery of the sliding sleeve (23). The driving sleeve (251) is rotatably mounted in the operating box (22) and arranged on the periphery of the sliding sleeve (23). The driving sleeve (251) is kept in rotation with the threaded groove. The first transmission gear (252) is fixedly mounted on the periphery of the driving sleeve (251). The second transmission gear (253) is fixedly mounted on the periphery of the rotating sleeve (24). The mounting shaft (254) is rotatably mounted. In the operating box (22), a driving gear (255) and a thick gear (256) are fixedly mounted on the mounting shaft (254), the driving gear (255) is kept in mesh with the first transmission gear (252), and the thick gear (256) is kept in mesh with the second transmission gear (253); a driving shaft (257) is also rotatably mounted in the operating box (22), the outer end of the driving shaft (257) extends out of the outside of the operating box (22) and is fixedly connected to a spline shaft (261), a first bevel gear (258) is fixedly connected to the driving shaft (257), and a second bevel gear (259) is fixedly connected to the mounting shaft (254) and is kept in mesh with the first bevel gear (258).

2. The underground mine production pipeline interface device according to claim 1, characterized in that: The interface pipe fitting (1) includes a three-way pipe fitting, a four-way pipe fitting, and a straight pipe fitting according to the requirements of splicing upstream and downstream production pipelines (3). The ports of the three-way pipe fitting, the four-way pipe fitting, and the straight pipe fitting are welded with a first connecting flange (11). The inner end of the mounting pipe fitting (21) of the interface assembly is also welded with a second connecting flange (211). The second connecting flange (211) on the mounting pipe fitting (21) is fixedly connected to the first connecting flange (11) by a bolt assembly (52).

3. The underground mine production pipeline interface device according to claim 2, characterized in that: A connecting pipe (41), a flow control valve (42), a pressure gauge (43), and a pressure pump (44) are also provided. A third connecting flange (411) is welded to both ends of the connecting pipe (41), and the third connecting flange (411) is fixedly connected to the first connecting flange (11) or the second connecting flange (211) through a bolt assembly (52). The flow control valve (42), the pressure gauge (43), and the pressure pump (44) are respectively mounted on different connecting pipes (41).

4. The underground mine production pipeline interface device according to claim 3, characterized in that: The outer side walls of the first connecting flange (11), the second connecting flange (211), and the third connecting flange (411) are all provided with an annular mounting groove, and a first sealing rubber ring (53) is nested and clamped in the annular mounting groove.

5. The underground mine production pipeline interface device according to claim 1, characterized in that: The inner end of the rotating sleeve (24) is fixedly connected to a first limiting ring (242), the outer end of the mounting pipe (21) is fixedly connected to a second limiting ring (212), and the second limiting ring (212) is arranged on the outer side of the first limiting ring (242). The mounting pipe (21) is sleeved with a second sealing rubber ring (54), and the second sealing rubber ring (54) and the second limiting ring (212) are kept in contact with each other. When the rotating sleeve (24) is at the outer end of the mounting pipe (21), the first limiting ring (242) and the second sealing rubber ring (54) are kept in contact with each other.

6. The underground mine production pipeline interface device according to claim 1, characterized in that: A third limiting ring (32) is fixedly connected to the periphery of the port of the production pipeline (3), and the third limiting ring (32) is arranged on the outside of the external thread (31). A third sealing rubber ring (55) is embedded in the third limiting ring (32). When the rotating sleeve (24) is sealed and screwed to the external thread (31) on the production pipeline (3), the outer end of the rotating sleeve (24) remains in contact with the third sealing rubber ring (55).

7. The underground mine production pipeline interface device according to claim 1, characterized in that: Two groups of limiting rings (213) arranged side by side are fixedly connected to the periphery of the installation pipe (21), and a guide rail (214) arranged along the length direction of the installation pipe (21) is fixedly connected between the two groups of limiting rings (213). A guide groove matched with the guide rail (214) is provided in the sliding sleeve (23); one end of the sliding sleeve (23) is fixedly connected to a nesting ring (231), and the rotating sleeve (24) is nested and combined with the nesting ring (231) in a relatively rotating manner.

8. The underground mine production pipeline interface device according to claim 1, characterized in that: The operating box (22) is also fixedly installed with a mounting plate (221), the driving shaft (257) is rotatably mounted on the mounting plate (221), and the mounting plate (221) is also equipped with a locking mechanism, and the locking mechanism includes a locking gear (271), a sliding plate (272), a locking rack (273), a return spring (274), and an operating key (275). The locking gear (271) is fixedly installed on the driving shaft (257), the sliding plate (272) is slidably mounted on the mounting plate (221), the return spring (274) is arranged on the mounting plate (221) and the two ends are respectively fixed to the sliding plate (272) and the inner wall of the operating box (22), the locking rack (273) is fixed to the sliding plate (272) and keeps meshing and locking with the locking gear (271), and the operating key (275) is fixed to the sliding plate (272) and extends to the outside of the operating box (22).

9. A method for interfacing underground mine production pipelines, characterized in that: The production pipeline (3) is connected by using the mine underground production pipeline interface device according to any one of claims 1 to 8, comprising the following steps: S1, Design the laying route of production pipeline (3) According to the compressed air and water supply requirements of each tunnel in the mine, the laying route of the production pipeline (3) is designed so that the production pipeline (3) passes through each compressed air and water supply point, and at the same time, the type of interface pipe fittings (1) and the type of connecting pipe fittings (41) required when connecting adjacent production pipelines (3) are determined; S2, assemble the interface device that meets the connection requirements The interface pipe fittings (1) and connecting pipe fittings (41) required at each interface position determined in step S1 are spliced ​​and assembled, and the interface assembly is assembled to the port to connect with the production pipeline (3) to form an interface device that meets the design requirements; S3, splicing construction of production pipeline (3) Assemble the interface device assembled in step S2 to the connection of the adjacent production pipelines (3), and drive the corresponding sliding sleeve (23) and the rotating sleeve (24) to operate by operating the driving mechanism to achieve a sealed rotation connection between the rotating sleeve (24) and the production pipeline (3), thereby ensuring that each production pipeline (3) at the connection is stably connected to the interface pipe (1); S4, replace the damaged production pipeline (3) and interface pipe (1) During the underground production process of a mine, when part of the production pipeline (3) or the interface pipe fitting (1) is damaged, the sliding sleeve (23) and the rotating sleeve (24) are operated by operating the driving mechanism to operate, and the connection between the rotating sleeve (24) and the corresponding production pipeline (3) is cancelled, so as to facilitate the replacement of the separated production pipeline (3) or the interface pipe fitting (1).

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