A sectional hole sealing and extraction device for coal mine extraction

Abstract

The present application belongs to the technical field of coal mine extraction equipment, and relates to a sectional type hole sealing and extraction device for coal mine extraction, which comprises an extraction host and an extraction pipe. The extraction host comprises heat dissipation grilles and a connecting pipe. Two groups of the heat dissipation grilles are respectively arranged at two ends of the extraction host. The connecting pipe is arranged on one side of the extraction host. The extraction pipe comprises fixing discs, adjusting rings, screw rods, limiting rods and positioning blocks. Two groups of the fixing discs are arranged at one end of the outer side of the extraction pipe. The present application can prevent the positioning blocks and the connecting rods from falling off through the limiting grooves and the limiting blocks. The adjusting rings can be adjusted left and right between the two groups of the fixing discs through the screw rods and the limiting rods. The adjusting rings and the four groups of the positioning blocks can be in contact with each other through the extrusion inclined grooves. With the movement of the adjusting rings, the four groups of the positioning blocks can be extruded outward, so that the positioning blocks are in close contact with the inner wall of the extraction hole. The extraction pipe can be limitedly installed in the interior of the extraction hole, and the damage of the air bag caused by the displacement of the pipeline can be avoided.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of coal mine extraction equipment, and relates to a sectional type hole sealing and sealing extraction device for coal mine extraction. BACKGROUND

[0002] Coal mine gas extraction is an important part of coal mine safety production. It drills into coal seams and gas accumulation areas, connects the drill holes to special pipelines, and uses extraction equipment to extract gas from coal seams and goaf to the ground for utilization or discharge into the total return air flow. This process not only effectively reduces the amount of gas emission during mining, prevents gas overrun and accumulation, and prevents gas explosion and coal and gas outburst accidents, but also develops and utilizes gas as a resource associated with coal, achieving the transformation from harm to benefit.

[0003] However, in the existing coal mine gas extraction technology, there are often some problems in the design of the hole sealing device. For example, the coal mine equipment will produce vibration during operation, which can cause displacement of the pipeline after a long time of operation. Such displacement not only can cause damage to the sealing air bag and affect the sealing performance of the device, but also can cause gas leakage, reduce the extraction efficiency, and even cause safety accidents. In addition, the traditional hole sealing device often lacks an effective positioning mechanism for the pipeline, which can cause the pipeline to loosen or fall off during extraction, further exacerbating the above problems.

[0004] In view of these problems, some improvement schemes have appeared in the prior art. For example, the patent with the application number CN202310278583.3 discloses a coal mine gas extraction hole sealing device, which sets an extrusion assembly and a locking assembly in the hole sealing pipe to ensure that the hole sealing pipe can be in a static and stable sealing state, thereby enhancing the effect of gas extraction hole sealing. However, these schemes still have certain limitations in actual application, especially in dealing with complex geological conditions and long-time vibration environment, and their stability and reliability still need to be improved. SUMMARY

[0005] Therefore, the present application aims to provide a sectional type hole sealing and sealing extraction device for coal mine extraction, which can effectively solve the problem of pipeline displacement, improve the sealing performance, and have good stability and reliability.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a sectional type hole sealing and sealing extraction device for coal mine extraction, comprising:

[0007] an extraction host, the extraction host comprising heat dissipation grilles and a connecting pipe, two groups of heat dissipation grilles being respectively arranged at two ends of the extraction host, and the connecting pipe being arranged at one side of the extraction host;

[0008] The extraction pipe comprises fixing discs, an adjusting ring, a screw rod, limiting rods and positioning blocks. Two groups of fixing discs are arranged on the outer side of the extraction pipe. The adjusting ring is arranged between the two groups of fixing discs. The screw rod is arranged between the two groups of fixing discs and penetrates into the inside of the adjusting ring. Three groups of limiting rods are arranged between the two groups of fixing discs and penetrate into the inside of the adjusting ring. Four groups of positioning blocks are uniformly arranged between the two groups of fixing discs.

[0009] The outer side of the adjusting ring and the inner side of the positioning block are provided with extrusion inclined grooves. The adjusting ring is adjusted by the screw rod and the limiting rods, so that the adjusting ring is in contact with the four groups of positioning blocks through the extrusion inclined grooves. With the movement of the adjusting ring, the four groups of positioning blocks are extruded outward, so that the positioning blocks are in close contact with the inner wall of the extraction hole, and the extraction pipe is limitedly installed in the inside of the extraction hole.

[0010] Optionally, limiting grooves are arranged at the four corners of the inside of the positioning block. The outer side of the extraction pipe is provided with connecting rods penetrating into the inside of the limiting grooves. One end of the connecting rod located in the inside of the limiting groove is provided with a limiting block. The limiting grooves and the limiting block prevent the positioning block from falling off from the connecting rod.

[0011] Optionally, a plurality of anti-skid grooves are uniformly arranged on the outer side of the positioning block. The anti-skid grooves increase the friction between the positioning block and the extraction hole.

[0012] Optionally, an air bag is arranged at one end of the outer side of the extraction pipe away from the adjusting ring. Two ends of the outer side of the extraction pipe located at the air bag are provided with mounting rings. The outer side of one group of mounting rings is provided with an air nozzle for injecting air into the air bag, so as to realize the sealing between the extraction pipe and the extraction hole.

[0013] Optionally, connecting flanges are arranged at both ends of the extraction pipe and one end of the connecting pipe away from the extraction host. The connecting flanges realize the connection between the extraction pipes and the connection between the extraction pipe and the connecting pipe.

[0014] Optionally, an air outlet is arranged at the bottom end of one side of the extraction host. An air outlet is arranged at the bottom end of the other side of the extraction host. The connecting pipe is connected with the extraction host through the air outlet. Support legs are arranged at the four corners of the bottom of the extraction host.

[0015] Optionally, a through hole is arranged in the inside of the adjusting ring. The adjusting ring is movably connected with the extraction pipe through the through hole. One end of the screw rod is provided with a rotating block, which facilitates the rotation of the screw rod.

[0016] Optionally, a bearing is arranged on one side of one group of fixing discs. The other end of the screw rod penetrates into the inside of the bearing. The screw rod is rotatably connected with one group of fixing discs through the bearing. A threaded hole matched with the screw rod is arranged in the inside of the adjusting ring. The adjusting ring is threadedly connected with the adjusting ring through the threaded hole.

[0017] Optionally, the two ends of the limiting rod are respectively welded to the two groups of fixing discs, the inside of the adjusting ring is provided with a plurality of limiting holes, and the limiting rod penetrates into the inside of the limiting hole, and the adjusting ring is movably connected with the limiting rod through the limiting hole.

[0018] Optionally, one end of the positioning block is provided with a movable hole, and the movable hole penetrates into the inside of the limiting groove, the positioning block is movably connected with the connecting rod through the movable hole, and the limiting block is fixedly connected with the extraction pipe through the connecting rod.

[0019] The beneficial effects of the present application are:

[0020] 1) improve the sealing performance: through the cooperation of the limiting groove and the limiting block, the falling off between the positioning block and the connecting rod is effectively prevented, and the structural stability of the device is ensured. At the same time, the adjusting ring is adjusted left and right by the screw rod and the limiting rod, the positioning block is extruded outward through the extrusion chute, the positioning block is in close contact with the inner wall of the extraction hole, so that the stable installation and sealing of the extraction pipe are realized, the damage of the gas bag caused by the displacement of the pipeline is effectively avoided, and the sealing performance of the device is significantly improved.

[0021] 2) enhance stability and reliability: the device structure of the present application is reasonable, through the adjusting ring connected by a plurality of limiting rods and screw threads, the stability and reliability of the adjusting ring in the adjusting process are ensured. In addition, the anti-skid groove on the outside of the positioning block increases the friction force with the inner wall of the extraction hole, further enhances the fixing effect of the device, and makes it still maintain stable extraction performance under complex geological conditions and long time vibration environment.

[0022] Other advantages, objects, and features of the present application will be in part apparent and in part pointed out below in the specification, and in part will be observed from the following description, taken in conjunction with the accompanying drawings. The objects and other advantages of the present application will be realized and attained by the structure particularly pointed out in the specification and claims. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to make the purpose, technical scheme and advantages of the present application more clear, the preferred detailed description of the present application will be combined with the drawings below, wherein:

[0024] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0025] Figure 2 It is a sectional view of the present application;

[0026] Figure 3 It is a schematic diagram of the local structure of the present application;

[0027] Figure 4 It is a sectional view of the pipeline of the present application;

[0028] Figure 5A pipe cross-sectional view of the present application.

[0029] Label: 1, extraction host; 101, heat dissipation grid; 102, connecting pipe; 2, extraction pipe; 201, fixed disc; 202, adjusting ring; 203, screw rod; 204, limiting rod; 205, positioning block; 206, extrusion chute; 207, limiting groove; 208, connecting rod; 209, limiting block; 210, anti-skid groove; 3, air bag; 301, mounting ring; 302, air nozzle; 303, connecting flange. DETAILED DESCRIPTION

[0030] The present application is further illustrated by the following specific examples, which provide further appreciation of the application by one of ordinary skill in the art. The application can be further modified and varied in various ways, and it is therefore to be understood that, within the scope of the application, other specific arrangements can be utilized and structural and functional modifications can be made without departing from the spirit of the application. It is also to be understood that features from one example can be combined with features from another example, where appropriate.

[0031] The drawings are only used for illustrative purposes, and the representation is only a schematic diagram, not a physical diagram, and cannot be understood as a limitation on the present application; in order to better illustrate the embodiments of the present application, some components of the drawings are omitted, enlarged or reduced, and do not represent the actual product size; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings can be omitted.

[0032] The same or similar reference numerals in the drawings of the embodiments of the present application correspond to the same or similar components; in the description of the present application, it should be understood that if the terms "upper", "lower", "left", "right", "front", "back" and the like indicate the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationship in the drawings are only used for illustrative purposes, and cannot be understood as a limitation on the present application, for those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0033] Please refer to Figures 1-5The utility model provides a kind of sectional type hole sealing sealing extraction device for coal mine extraction, including extraction host 1 and extraction pipe 2, extraction host 1 includes heat dissipation grid 101 and connecting pipe 102, two groups of heat dissipation grid 101 are respectively arranged at the two ends of extraction host 1, heat dissipation grid 101 is convenient for heat dissipation to extraction host 1, connecting pipe 102 is arranged at the side of extraction host 1, it is convenient to connect extraction host 1 with extraction pipe 2, extraction pipe 2 includes fixed disc 201, adjusting ring 202, screw rod 203, limit rod 204 and positioning block 205, two groups of fixed disc 201 are arranged outside extraction pipe 2, adjusting ring 202 is arranged between two groups of fixed disc 201, screw rod 203 is arranged between two groups of fixed disc 201, and screw rod 203 penetrates to the inside of adjusting ring 202, adjusting ring 202 can be adjusted left and right by screw rod 203, three groups of limit rod 204 are arranged between two groups of fixed disc 201, and three groups of limit rod 204 penetrate to the inside of adjusting ring 202, the adjustment of adjusting ring 202 is more stable by limit rod 204, four groups of positioning block 205 are evenly arranged between two groups of fixed disc 201, four groups of positioning block 205 are convenient for limiting extraction pipe 2 in the inside of extraction hole, can prevent displacement of extraction pipe 2, the outside of adjusting ring 202 and the inside of positioning block 205 are all equipped with extrusion chute 206, by the interaction of extrusion chute 206, adjusting ring 202 can push positioning block 205 to move outward, four groups of positioning block 205 are conveniently extruded outward, four corners in the inside of positioning block 205 are all equipped with limit groove 207, the outside of extraction pipe 2 is equipped with connecting rod 208 that penetrates to the inside of limit groove 207, one end of connecting rod 208 in the inside of limit groove 207 is equipped with limit block 209, limit groove 207 and limit block 209 can prevent the falling between positioning block 205 and connecting rod 208, the outside of positioning block 205 is evenly provided with multiple anti-skid grooves 210, the friction between positioning block 205 and extraction hole is increased by anti-skid groove 210, it is convenient to position and use extraction pipe 2.

[0034] Please refer to Figure 1 , Figure 3 and Figure 4 , the end of the outside of extraction pipe 2 away from adjusting ring 202 is equipped with air bag 3, can seal between extraction pipe 2 and extraction hole, the both ends of the outside of extraction pipe 2 located gas bag 3 are all equipped with mounting ring 301, it is convenient to install and use gas bag 3, the outside of a group of mounting ring 301 is equipped with air nozzle 302, it is convenient to inject gas in the inside of air bag 3, it is convenient to seal extraction hole, the both ends of extraction pipe 2 and the end of connecting pipe 102 away from extraction host 1 are all equipped with connecting flange 303, two groups of extraction pipe 2 can be connected by connecting flange 303, and extraction pipe 2 and connecting pipe 102 can be connected.

[0035] Please refer to Figure 1 , Figure 2 andFigure 5 , the bottom end of the extraction host 1 on one side is provided with an air outlet, the bottom end of the extraction host 1 on the other side is provided with an air outlet, the connecting pipe 102 is connected with the extraction host 1 through the air outlet, the connecting pipe 102 and the extraction host 1 can be connected, the four corners of the bottom of the extraction host 1 are provided with supporting legs, which play a supporting effect and improve the stability of the use of the extraction host 1, the inside of the adjusting ring 202 is provided with a through hole, the adjusting ring 202 is movably connected with the extraction pipe 2 through the through hole, the through hole can be used for the movable adjustment between the adjusting ring 202 and the extraction pipe 2, one end of the screw rod 203 is provided with a rotating block, which is convenient for rotating use of the screw rod 203, one side of the group of fixed discs 201 is provided with a bearing, and the other end of the screw rod 203 penetrates into the bearing, the screw rod 203 is rotatably connected with the group of fixed discs 201 through the bearing, the rotation of the screw rod 203 is more stable through the bearing, the inside of the adjusting ring 202 is provided with a threaded hole matched with the screw rod 203, the adjusting ring 202 is screwedly connected with the adjusting ring 202 through the threaded hole, which plays a limiting adjusting effect and can provide power for left and right adjustment of the adjusting ring 202, the two ends of the limiting rod 204 are respectively welded with the two groups of fixed discs 201, the inside of the adjusting ring 202 is provided with a plurality of limiting holes, and the limiting rod 204 penetrates into the limiting hole, the adjusting ring 202 is movably connected with the limiting rod 204 through the limiting hole, the adjusting ring 202 can be limited through the limiting rod 204, the left and right adjustment of the adjusting ring 202 can be stable, and the adjusting ring 202 is prevented from rotating, one end of the positioning block 205 is provided with a movable hole, and the movable hole penetrates into the limiting groove 207, the positioning block 205 is movably connected with the connecting rod 208 through the movable hole, the movable hole can be used for the activity between the positioning block 205 and the connecting rod 208, the limiting block 209 is fixedly connected with the extraction pipe 2 through the connecting rod 208, the limiting block 209 and the extraction pipe 2 can be fixed through the connecting rod 208, the positioning block 205 and the limiting rod 208 are prevented from falling off, and the positioning block 205 is convenient to install and use.

[0036] Please refer to Figure 1 , and Figure 2 and Figure 5One side of the mounting ring 301 is provided with a mounting groove, the two ends of the air bag 3 are respectively fixedly connected with the two groups of mounting rings 301 through the mounting grooves, the installation between the air bag 3 and the two groups of mounting rings 301 is realized, the outer side of one group of mounting rings 301 is provided with a mounting hole, the air nozzle 302 is detachably connected with one group of mounting rings 301 through the mounting hole, the air nozzle 302 is mounted on one group of mounting rings 301, the air bag 3 is conveniently inflated, the extraction pipe 2 and the extraction hole are conveniently sealed, one end of the extraction pipe 2 is detachably connected with the connecting pipe 102 through the connecting flange 303, the fixed bolt and the nut, the extraction pipe 2 is connected with the extraction host 1 through the connecting pipe 102, the two groups of extraction pipes 2 can be spliced and used, and the extraction pipe 2 can be connected with the extraction host 1 through the connecting pipe 102.

[0037] Working principle: when the present application is used, the extraction pipe 2 is placed in the extraction hole, a tool (such as an extension wrench) is used to rotate the rotating block at one end of the screw rod 203, the screw rod 203 is rotated and matched with the threaded hole in the adjusting ring 202, the adjusting ring 202 can be adjusted left and right, the adjusting ring 202 and the limiting rod 204 can slide through the limiting hole, the adjustment of the adjusting ring 202 is more stable, the four groups of positioning blocks 205 are extruded outward by the adjusting ring 202 through the interaction of the extrusion chute 206, the positioning block 205 and the connecting rod 208 are moved through the movable hole, and the positioning block 205 and the connecting rod 208 are limited through the limiting block 209 and the limiting groove 207, so that the positioning block 205 and the connecting rod 208 are prevented from falling off, the anti-skid groove 210 on the outer side of the positioning block 205 is in close contact with the inner wall of the extraction hole with the outward movement of the positioning block 205, the extraction pipe 2 is limited in the extraction hole, the pipeline is prevented from being displaced, the air bag 3 is prevented from being damaged, the air pump and the air pipe are connected with the air nozzle, the gas in the air bag 3 is injected, the air bag 3 is in close contact with the inner wall of the extraction hole, the extraction hole is sealed, the gas leakage is avoided, the gas is extracted through the extraction host 1, the connecting pipe 102 and the extraction pipe 2, and the use effect of the sealing extraction device is better.

[0038] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting, although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the technical solutions, which should be covered in the claim scope of the present application.

Claims

1. A sectionalized hole sealing and extraction device for coal mine extraction, characterized in that, The utility model relates to a kind of extraction host, extraction pipe and connection pipe, the utility model discloses the following technical scheme: Extraction host, the extraction host includes heat dissipation grid and connecting pipe, two groups of heat dissipation grid are respectively arranged in the two ends of extraction host, and connecting pipe is arranged in the side of extraction host; Extraction pipe, the extraction pipe includes fixed disc, adjusting ring, screw rod, limiting rod and locating block, two groups of fixed disc are arranged outside extraction pipe, adjusting ring is arranged between two groups of fixed disc, screw rod is arranged between two groups of fixed disc, and screw rod is penetrated to the inside of adjusting ring, three groups of limiting rods are arranged between two groups of fixed disc, and three groups of limiting rods are penetrated to the inside of adjusting ring, four groups of locating blocks are evenly arranged between two groups of fixed disc; Wherein, the outside of adjusting ring and the inside of locating block are provided with extrusion inclined groove, adjusting ring is contacted with four groups of locating blocks by extrusion inclined groove by the adjustment of adjusting ring and limiting rod, four groups of locating blocks are extruded outward with the movement of adjusting ring, so that locating block is tightly contacted with the inner wall of extraction hole, and extraction pipe is limitedly installed in the inside of extraction hole; Four corners in the inside of locating block are provided with limiting slot, the outside of extraction pipe is provided with connecting rod penetrated to the inside of limiting slot, one end of connecting rod in the inside of limiting slot is provided with limiting block, and limiting slot and limiting block prevent the falling between locating block and connecting rod; The end of the outside of extraction pipe away from adjusting ring is provided with air bag, the both ends of the outside of extraction pipe at air bag are provided with mounting ring, the outside of one group of mounting ring is provided with air nozzle, for injecting gas into air bag, to realize the sealing between extraction pipe and extraction hole.

2. The sectionalized hole sealing and extraction device for coal mine extraction according to claim 1, characterized in that: The outside of locating block is evenly provided with multiple anti-skid grooves, and the friction between the locating block and the extraction hole is increased by the anti-skid grooves.

3. The sectionalized hole sealing and extraction device for coal mine extraction according to claim 1, characterized in that: The both ends of extraction pipe and the end of connecting pipe away from extraction host are provided with connecting flange, and the connection between extraction pipes and the connection between extraction pipe and connecting pipe are realized by connecting flange.

4. The sectionalized hole sealing and extraction device for coal mine extraction of claim 1, wherein: The bottom end of one side of extraction host is provided with air outlet, and the bottom end of the other side of extraction host is provided with air outlet, and connecting pipe is connected with extraction host through air outlet, and four corners of the bottom of extraction host are provided with supporting legs.

5. The sectionalized hole sealing and extraction device for coal mine extraction of claim 1, wherein: The inside of adjusting ring is provided with through hole, and adjusting ring is movably connected with extraction pipe through through hole, one end of screw rod is provided with rotating block, and screw rod is rotated.

6. The sectionalized hole sealing and extraction device for coal mine extraction of claim 1, wherein: One side of one group of fixed disc is provided with bearing, and the other end of screw rod is penetrated into the inside of bearing, and screw rod is movably connected with one group of fixed disc through bearing, and the inside of adjusting ring is provided with screw hole matched with screw rod, and adjusting ring is threadedly connected with adjusting ring through screw hole.

7. The sectionalized hole sealing and extraction device for coal mine extraction of claim 1, wherein: The both ends of limiting rod are respectively welded with two groups of fixed disc, and the inside of adjusting ring is provided with multiple limiting holes, and limiting rod is penetrated into the inside of limiting hole, and adjusting ring is movably connected with limiting rod through limiting hole.

8. The sectionalized hole sealing and extraction device for coal mine extraction of claim 1, wherein: One end of locating block is provided with movable hole, and movable hole is penetrated into the inside of limiting slot, and locating block is movably connected with connecting rod through movable hole, and limiting block is fixedly connected with extraction pipe through connecting rod.

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