CN220910829U - Underground pipeline sand hole plugging device for coal mine - Google Patents

Abstract

The utility model relates to the technical field of underground pipeline trachoma plugging, in particular to an underground pipeline trachoma plugging device for a coal mine. The utility model comprises a clamp which has a release state and a pipeline tightening state; the device also comprises a sealing assembly and a rebound assembly; the sealing assembly comprises a sealing gasket, the sealing gasket is provided with an arc-shaped inner surface which can be matched with a pipeline, the sealing gasket is connected with the inner wall of the clamp through a rebound assembly, the rebound assembly is detachably connected with the inner wall of the clamp, and when the clamp is in a pipeline hooping state, the rebound assembly can give thrust to the sealing gasket so as to drive the sealing gasket to seal sand holes on the pipeline. The sealing gasket has the advantages that the structure is simple, the operation is convenient and quick, the sealing gasket can be pushed by the rebound assembly to rapidly seal the sand hole of the pipeline, the sand hole can be sealed tightly, the fluid in the pipeline is prevented from rushing to seal the sealing device, the damage rate is reduced, and the manpower and material resources are reduced.

Description

Underground pipeline sand hole plugging device for coal mine

Technical Field

The utility model relates to the technical field of underground pipeline trachoma plugging, in particular to an underground pipeline trachoma plugging device for a coal mine.

Background

When the pipeline is constructed, sand holes often appear on the outer wall of the pipeline due to the influence of various factors such as geological conditions, material quality, construction process and the like. The existence of sand holes can cause leakage and damage of the pipeline, and the normal use of the pipeline is affected.

In the colliery, the factor such as under pit high pressure pipeline receives humid environment, high pressure fluid impact influences extremely easily appears the trachoma, if can not block up fast after the trachoma forms, under the scouring of high pressure fluid, the pipeline extremely easily appears large tracts of land broken wall, influence mine normal production then, and because trachoma blowout fluid is concentrated, pressure is big, when adopting general ferrule shutoff trachoma, extremely easily cause the injury to the operating personnel, often need to change the pipeline after closing the main valve at the upper reaches or install general ferrule, but when installing general ferrule, high pressure fluid easily dashes out the ferrule through the trachoma to cause danger to scene and operating personnel, so that just cause a lot of inconvenience, still can't realize fast shutoff trachoma simultaneously, and then extravagant manpower, material resources.

Disclosure of utility model

First, the technical problem to be solved

In view of the above-mentioned shortcomings and disadvantages of the prior art, the utility model provides an underground pipeline sand hole plugging device for a coal mine, which solves the technical problem that sand holes of a high-pressure pipeline cannot be plugged rapidly.

(II) technical scheme

In order to achieve the above purpose, the main technical scheme adopted by the utility model comprises the following steps:

The utility model provides an underground pipeline sand hole plugging device for a coal mine, which comprises a clamp, wherein the clamp is in a release state and a pipeline tightening state; the device also comprises a sealing assembly and a rebound assembly; the sealing assembly comprises a sealing gasket, the sealing gasket is provided with an arc-shaped inner surface which can be matched with a pipeline, the sealing gasket is connected with the inner wall of the clamp through the rebound assembly, the rebound assembly is detachably connected with the inner wall of the clamp, and when the clamp is in a pipeline tightening state, the rebound assembly can give the sealing gasket thrust to drive the sealing gasket to seal sand holes on the pipeline.

Preferably, the rebound assembly comprises a first telescopic rod and a first elastic mechanism; one end of the first telescopic rod is arranged on the inner wall of the clamp, the other end of the first telescopic rod is connected with the outer wall of the sealing gasket, and the first elastic mechanism is arranged on the first telescopic rod, and the axis of the first elastic mechanism coincides with the axis of the first telescopic rod so as to drive the first telescopic rod to stretch out and draw back and push the sealing gasket.

Preferably, the first elastic mechanism comprises two first arc plates and a plurality of first elastic pieces; the two first arc plates are respectively rotatably installed at one end, close to the outer wall of the sealing gasket, of the first telescopic rod and one end, close to the inner wall of the clamp, of the first telescopic rod, a plurality of first elastic pieces are installed between the two first arc plates around the first telescopic rod, and a second telescopic rod is installed inside each first elastic piece and between the two first arc plates.

Preferably, the clamp comprises a first clamp body and a second clamp body which are matched in an annular mode, and the first clamp body and the second clamp body are installed in a clamping mode through the matching of the bolt and the nut; the inner wall of the first hoop body and the outer wall of the sealing gasket are provided with first plate grooves matched with the first arc-shaped plates, and the two first arc-shaped plates are respectively embedded into the two first plate grooves.

Preferably, the occlusion device further comprises a positioning assembly; the positioning component is arranged on the inner wall of the sealing gasket, and can be inserted into the pipeline sand hole to position the pipeline sand hole.

Preferably, the positioning assembly comprises a third telescopic rod and a second elastic mechanism; one end of the third telescopic rod is arranged on the inner wall of the sealing gasket, the third telescopic rod is positioned at the center of the sealing gasket, and the second elastic mechanism is arranged on the third telescopic rod and used for driving the third telescopic rod to stretch.

Preferably, the second elastic mechanism comprises a second arc-shaped plate, a plurality of second elastic pieces and a positioning plate; the second arc-shaped plate is arranged at one end of the third telescopic rod, which is close to the sealing gasket, the positioning plate is arranged at the end part of the third telescopic rod, which is far away from the sealing gasket, the plurality of second elastic pieces are arranged between the second arc-shaped plate and the positioning plate, and the plurality of second elastic pieces are positioned around the third telescopic rod; a plate groove matched with the second arc-shaped plate is formed in the inner wall of the sealing gasket, and the second arc-shaped plate is embedded into the plate groove; and a fourth telescopic rod is arranged in each second elastic piece and is arranged between the second arc-shaped plate and the positioning plate so as to limit the second elastic pieces.

Preferably, the second elastic mechanism further comprises a telescopic housing; the telescopic shell is arranged between the second arc-shaped plate and the top plate, and the third telescopic rod and the plurality of second elastic pieces are positioned in the telescopic shell.

Preferably, friction pads are respectively arranged on the side walls of the two sides of the sealing pad so as to improve the friction force of the sealing pad on the pipeline.

Preferably, the plugging device further comprises a water outlet pipe and a valve; the water outlet pipe with the outer wall connection of the first hoop body just the water outlet pipe with first telescopic link with the third telescopic link intercommunication, the valve install in on the water outlet pipe.

(III) beneficial effects

The beneficial effects of the utility model are as follows:

1. According to the underground pipeline sand hole plugging device for the coal mine, the inner wall of the clamp is connected with the sealing gasket through the rebound assembly, when the sealing gasket is used for plugging the sand hole of the pipeline, the rebound assembly can provide a thrust force for the sealing gasket, so that the sealing gasket can be used for plugging the sand hole of the pipeline more tightly, and under the acting force of the rebound assembly, the sealing gasket can be used for realizing rapid plugging; the sealing gasket is provided with an arc-shaped inner surface which is matched with the pipeline so as to be matched with the shape of the outer wall of the pipeline; after the sealing gasket seals the sand hole, the clamp is in a state of tightening the pipeline, so that the sand hole is sufficiently and tightly sealed through the interaction among the clamp, the sealing gasket and the rebound assembly, and the problem that the plugging device is broken due to the fact that fluid is flushed away by the sand hole due to the fact that fluid impact force in the pipeline is large is avoided; through rebound subassembly detachably install on the inner wall of clamp, can change rebound subassembly and seal assembly to the difference of the sand hole's of pipeline size, improved work efficiency. The utility model has simple structure and convenient and quick operation, can quickly seal the sand hole of the pipeline, can ensure that the sand hole is sealed more tightly, avoids fluid in the pipeline from punching the sealing device, reduces the damage rate and reduces manpower and material resources.

2. According to the underground pipeline trachoma plugging device for the coal mine, the rebound assembly comprises the first telescopic rod and the first elastic mechanism, and the first telescopic rod and the first elastic mechanism are matched to provide thrust for the sealing gasket, so that the sealing gasket can be more tightly attached to the outer wall of a pipeline, quick plugging can be realized, and fluid overflow is prevented;

3. The utility model relates to an underground pipeline sand hole plugging device for a coal mine, which comprises a first elastic mechanism, a second elastic mechanism and a sealing gasket, wherein the first elastic mechanism comprises two first arc plates and a plurality of elastic pieces; the second telescopic rod is arranged inside each first elastic piece and between the two first arc-shaped plates, and can limit the rebound direction and the compression direction of the plurality of first elastic pieces, so that the first elastic pieces are prevented from being damaged. First board grooves matched with arc plates are formed in the inner wall of the first hoop body and the outer wall of the sealing gasket, the two first arc plates are respectively embedded into the two first board grooves, the first telescopic rod can be fixed, meanwhile, the cambered surfaces of the first hoop body and the sealing gasket can be kept flat, and the situation that the moving distance is insufficient in the compression and ejection processes is avoided, so that the clamping position is caused.

4. According to the underground pipeline sand hole plugging device for the coal mine, disclosed by the utility model, the pipeline sand hole can be positioned by installing the positioning component on the inner wall of the sealing gasket so as to quickly find out the sand hole of the pipeline, so that the pipeline sand hole can be plugged quickly. Through third telescopic link and second elastic mechanism, when carrying out the shutoff of pipeline trachoma, second elastic mechanism supports on the outer wall of pipeline, through second elastic mechanism, and the compression is realized to the third telescopic link, when second elastic mechanism is located trachoma department, drives the inside that the third telescopic link stretched out to the pipeline through the resilience of second elastic mechanism to realize quick location, simultaneously, sealed pad carries out the shutoff to the trachoma thereupon.

5. According to the underground pipeline sand hole plugging device for the coal mine, the plurality of second elastic pieces are arranged between the second arc-shaped plate and the positioning plate, so that the second elastic pieces have resilience force through extrusion of the second arc-shaped plate and the positioning plate when sand holes are found, the second elastic pieces can rebound immediately when the positioning plate is positioned at the sand holes to drive the positioning plate to enter the sand holes, and meanwhile, the third telescopic rod extends out into the pipeline to drive the sealing gasket to rapidly plug the sand holes; the inner wall of the sealing gasket is provided with the plate groove matched with the second arc-shaped plate, and the second arc-shaped plate is embedded into the plate groove, so that the inner wall of the sealing gasket is smoother, and the problem that sand holes cannot be blocked completely due to omission during blocking is avoided; and the fourth telescopic rod is arranged in the second elastic piece, so that the second elastic piece can be limited, and the second elastic piece is prevented from being damaged. Through the flexible shell of installation between second arc and roof to place in flexible shell with third telescopic link and a plurality of second elastic component, can avoid third telescopic link and a plurality of second elastic component to corrode because of the fluid in the pipeline, reduced the damage rate of device.

6. According to the underground pipeline sand hole plugging device for the coal mine, the friction pads are arranged on the side walls of the two sides of the sealing pad, so that the friction force between the sealing pad and the outer wall of the pipeline can be increased, and the sealing pad is prevented from sliding on the outer wall of the pipeline. Through setting up outlet pipe and valve, can make fluid flow to the outlet pipe through the third telescopic link, follow outlet pipe and flow to other equipment again, avoid the waste of fluid, the valve can control opening and close of outlet pipe.

Drawings

FIG. 1 is a schematic perspective view of the whole structure of a coal mine underground pipeline sand hole plugging device;

FIG. 2 is a schematic top view of the overall structure of the underground pipe trachoma plugging device for coal mines;

FIG. 3 is a schematic perspective view of a rebound assembly of a downhole pipeline trachoma plugging device for coal mines;

FIG. 4 is a schematic side cross-sectional view of the overall structure of a positioning assembly of the downhole pipeline sand hole plugging device for coal mines;

FIG. 5 is a schematic perspective view showing the overall structure of a clamp of the underground pipe trachoma plugging device for coal mines;

Fig. 6 is a schematic perspective view of the whole structure of a sealing assembly of the underground pipe trachoma plugging device for coal mines.

[ Reference numerals description ]

1: A clamp; 11: a first hoop body; 12: a second hoop body; 2: a seal assembly; 21: a sealing gasket; 22: a friction pad; 3: a rebound assembly; 31: a first telescopic rod; 32: a first elastic mechanism; 321: a first arcuate plate; 322: a first elastic member; 323: a second telescopic rod; 4: a positioning assembly; 41: a third telescopic rod; 42: a second elastic mechanism; 421: a second arcuate plate; 422: a second elastic member; 423: a positioning plate; 424: a fourth telescopic rod; 425: a telescoping housing; 5: a water outlet pipe; 6: a valve; 7: a bolt; 8: and (3) a nut.

Detailed Description

In order that the above-described aspects may be better understood, exemplary embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.

Example 1

As shown in fig. 1 to 6, the underground pipe trachoma plugging device for coal mine according to the present embodiment includes a clip 1, a sealing assembly 2 and a rebound assembly 3, wherein the clip 1 has a released state and a pipe tightening state; the seal assembly 2 comprises a seal gasket 21, the seal gasket 21 is provided with an arc-shaped inner surface which can be matched with a pipeline, the seal gasket 21 is connected with the inner wall of the clamp 1 through the rebound assembly 3, the rebound assembly 3 is detachably connected with the inner wall of the clamp 1 (in a threaded connection or clamping connection mode and the like), and when the clamp 1 is in a pipeline tightening state, the rebound assembly 3 can give the seal gasket 21 thrust to drive the seal gasket 21 to seal sand holes on the pipeline. Through being connected with the sealing gasket 21 through the rebound component 3 at the inner wall of the clamp 1, when the sealing gasket 21 seals the sand hole of the pipeline, the rebound component 3 can provide a thrust for the sealing gasket 21 so that the sealing gasket 21 can seal the sand hole of the pipeline more tightly, and under the acting force of the rebound component 3, the sealing gasket 21 can realize quick sealing; the gasket 21 has an arcuate inner surface conforming to the pipe to conform to the shape of the outer wall of the pipe; after the sand hole is plugged by the sealing gasket 21, the clamp 1 is in a pipeline tightening state, so that the sand hole is fully and tightly plugged through the interaction among the clamp 1, the sealing gasket 21 and the rebound assembly 3, and the phenomenon that the plugging device is flushed away by fluid through the sand hole due to large fluid impact force in a pipeline to damage the plugging device is avoided; through rebound subassembly 3 detachably install on the inner wall of clamp 1, can change rebound subassembly 3 and seal assembly 2 to the difference of the sand hole's of pipeline size, improved work efficiency. Preferably, as shown in fig. 6, friction pads 22 are respectively installed on the side walls of both sides of the sealing pad 21 to increase the friction of the sealing pad 21 on the pipe, thereby preventing the sealing pad 21 from sliding on the outer wall of the pipe.

Specifically, the rebound assembly 3 comprises a first telescopic rod 31 and a first elastic mechanism 32; one end of the first telescopic rod 31 is mounted on the inner wall of the clamp 1, the other end of the first telescopic rod 31 is connected with the outer wall of the sealing gasket 21, the first elastic mechanism 32 is mounted on the first telescopic rod 31, and the axis of the first elastic mechanism 32 coincides with the axis of the first telescopic rod 31 so as to drive the first telescopic rod 31 to stretch and retract and push the sealing gasket 21. Through the cooperation of first telescopic link 31 and first elastic mechanism 32, can provide the sealing gasket 21 thrust to make sealing gasket 21 can laminate more closely on the outer wall of pipeline, and can realize quick shutoff, prevent that the fluid from spilling over.

Further, as shown in fig. 3, the first elastic mechanism 32 includes two first arc plates 321 and a plurality of first elastic members 322; the two first arc plates 321 are rotatably installed at one end of the first telescopic rod 31, which is close to the outer wall of the sealing gasket 21, and one end of the first telescopic rod 31, which is close to the inner wall of the clamp 1, the plurality of first elastic elements 322 are installed between the two first arc plates 321 around the first telescopic rod 31, and the two arc plates can simultaneously extrude the plurality of elastic elements, so that the sealing gasket 21 can provide a rebound force for the sealing gasket 21 when the sealing gasket 21 is plugged, and the sealing gasket 21 can quickly plug the sand holes of the pipeline. Inside every first elastic piece 322 and install the second telescopic link 323 between two first arc 321, it can carry out spacingly to the resilience direction and the compression direction of a plurality of first elastic pieces 322, avoids first elastic piece 322 to damage. Preferably, the clamp 1 comprises a first hoop body 11 and a second hoop body 12 which are matched in an annular mode, and the first hoop body 11 and the second hoop body 12 are matched and installed in a relatively tightening mode through bolts 7 and nuts 8; first board grooves matched with the first arc plates 321 are formed in the inner wall of the first hoop body 11 and the outer wall of the sealing gasket 21, the two first arc plates 321 are respectively embedded into the two first board grooves, the first telescopic rod 31 can be fixed, meanwhile, the cambered surfaces of the first hoop body 11 and the sealing gasket 21 can be kept flat, and the situation that the moving distance is insufficient in the compression and ejection processes is avoided, so that clamping positions are caused.

Still further, the present embodiment further comprises a positioning assembly 4; wherein, locating component 4 installs on the inner wall of sealed pad 21, and locating component 4 can insert in the pipeline trachoma to the pipeline trachoma location, thereby find the trachoma of pipeline fast, in order to realize the quick shutoff of pipeline trachoma.

Specifically, the positioning assembly 4 includes a third telescopic rod 41 and a second elastic mechanism 42; one end of the third telescopic rod 41 is mounted on the inner wall of the sealing gasket 21, the third telescopic rod 41 is positioned at the center of the sealing gasket 21, and the second elastic mechanism 42 is mounted on the third telescopic rod 41 and used for driving the third telescopic rod 41 to stretch; when the sand hole of the pipeline is plugged, the second elastic mechanism 42 is propped against the outer wall of the pipeline, the third telescopic rod 41 is compressed through the second elastic mechanism 42, when the second elastic mechanism 42 is positioned at the sand hole, the third telescopic rod 41 is driven to extend out of the pipeline through the resilience force of the second elastic mechanism 42, so that quick positioning is realized, and meanwhile, the sealing gasket 21 plugs the sand hole.

Further, as shown in fig. 4, the second elastic mechanism 42 includes a second arc 421, a plurality of second elastic members 422, and a positioning plate 423; the second arc plate 421 is mounted at one end of the third telescopic rod 41 close to the sealing gasket 21, the positioning plate 423 is mounted at the end of the third telescopic rod 41 far away from the sealing gasket 21, the plurality of second elastic pieces 422 are mounted between the second arc plate 421 and the positioning plate 423, and the plurality of second elastic pieces 422 are positioned around the third telescopic rod 41; the inner wall of the sealing gasket 21 is provided with a plate groove matched with the second arc-shaped plate 421, and the second arc-shaped plate 421 is embedded into the plate groove; a fourth telescopic rod 424 is installed inside each second elastic member 422, and the fourth telescopic rod 424 is installed between the second arc 421 and the positioning plate 423 to limit the second elastic members 422. By installing the plurality of second elastic pieces 422 between the second arc-shaped plate 421 and the positioning plate 423, the second elastic pieces 422 can have resilience force through the extrusion of the second arc-shaped plate 421 and the positioning plate 423 when searching for the sand hole, so that the second elastic pieces 422 can rebound immediately to drive the positioning plate 423 to enter the sand hole when the positioning plate 423 is positioned at the sand hole, and meanwhile, the third telescopic rod 41 stretches out into the pipeline to drive the sealing gasket 21 to rapidly seal the sand hole; the inner wall of the sealing gasket 21 is provided with a plate groove matched with the second arc-shaped plate 421, and the second arc-shaped plate 421 is embedded into the plate groove, so that the inner wall of the sealing gasket 21 is smoother, and the problem that sand holes are not blocked completely due to omission in blocking is avoided; the fourth telescopic rod 424 is installed inside the second elastic piece 422, so that the second elastic piece 422 can be limited, and the second elastic piece 422 is prevented from being damaged. Preferably, the second elastic mechanism 42 further comprises a telescopic housing 425; the telescopic housing 425 is installed between the second arc 421 and the top plate and the third telescopic rod 41 and the plurality of second elastic members 422 are located inside the telescopic housing 425, which can prevent the third telescopic rod 41 and the plurality of second elastic members 422 from being corroded due to the fluid in the pipeline, thereby reducing the damage rate of the device.

Further, the plugging device also comprises a water outlet pipe 5 and a valve 6; the outlet pipe 5 is connected with the outer wall of the first hoop body 11, the outlet pipe 5 is communicated with the first telescopic rod 31 and the third telescopic rod 41, and the valve 6 is arranged on the outlet pipe 5.

Through above structure, the working principle of the underground pipeline sand hole plugging device for the coal mine of the embodiment is as follows:

As shown in fig. 1 and 2, the present device is assembled (the first hoop body 11 and the second hoop body 12 are locked at this time), at this time, the valve 6 is closed, then the hoop 1 is sleeved on the outer wall of the pipeline, the first hoop body 11 is pushed by the operator to make the first telescopic rod 31, the second telescopic rod 323, the third telescopic rod 41 and the fourth telescopic rod 424 in a compressed state, the positioning plate 423 is abutted against the outer wall of the pipeline, then the operator moves the present device along the axis of the pipeline, and the positioning plate 423 searches for the sand hole on the pipeline; when the locating plate 423 is at the position of the sand hole, the locating component 4 makes the locating plate 423, the third telescopic rod 41, the second elastic member 422 and the fourth telescopic rod 424 enter the pipeline from the sand hole of the pipeline due to the resilience force of the second elastic member 422. Meanwhile, the first elastic piece 322 rebounds to drive the first telescopic rod 31 and the second telescopic rod 323 to extend so as to drive the inner wall of the sealing assembly 2 to prop against the outer wall of the pipeline, and the sealing assembly 2 covers the sand hole, at this time, the first elastic piece 322 is always in a rebounded state and provides thrust for the first arc 321, so that the first telescopic rod 31 connected with the first arc 321 always provides thrust for the sealing gasket 21, and the sealing gasket 21 is tightly attached to the outer wall of the pipeline. Then, the first hoop body 11 and the second hoop body 12 are locked and fixed through the bolts 7 and the nuts 8, so that the sand holes of the pipeline can be quickly plugged.

When it is necessary to flow the fluid in the pipeline from the sand hole into another device, the valve 6 can be opened, and the fluid in the pipeline flows from the water outlet pipe 5 to the next device through the third telescopic rod 41 and the first telescopic rod 31 in sequence, so that the waste of the fluid is avoided.

In the description of the present utility model, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; may be a communication between two elements or an interaction between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature is "on" or "under" a second feature, which may be in direct contact with the first and second features, or in indirect contact with the first and second features via an intervening medium. Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is level lower than the second feature.

In the description of the present specification, the terms "one embodiment," "some embodiments," "examples," "particular examples," or "some examples," etc., refer to particular features, structures, materials, or characteristics described in connection with the embodiment or example as being included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that alterations, modifications, substitutions and variations may be made in the above embodiments by those skilled in the art within the scope of the utility model.

Claims (10)

1. The underground pipeline sand hole plugging device for the coal mine comprises a clamp (1), wherein the clamp (1) has a release state and a pipeline tightening state; the device is characterized by further comprising a sealing component (2) and a rebound component (3);

Sealing component (2) are including sealed pad (21), sealed pad (21) have can with pipeline adaptation's arc internal surface, sealed pad (21) pass through rebound subassembly (3) with the inner wall connection of clamp (1), rebound subassembly (3) with the inner wall detachably of clamp (1) is connected clamp (1) are in when the banding pipeline state, rebound subassembly (3) can give sealed pad (21) thrust is in order to drive the trachoma on sealed pad (21) shutoff pipeline.

2. The downhole pipeline trachoma plugging device for coal mines according to claim 1, wherein:

the rebound assembly (3) comprises a first telescopic rod (31) and a first elastic mechanism (32);

one end of a first telescopic rod (31) is installed on the inner wall of the clamp (1), the other end of the first telescopic rod (31) is connected with the outer wall of the sealing gasket (21), a first elastic mechanism (32) is installed on the first telescopic rod (31), and the axis of the first elastic mechanism (32) coincides with the axis of the first telescopic rod (31), so that the first telescopic rod (31) is driven to stretch and push the sealing gasket (21).

3. The downhole pipeline trachoma plugging device for coal mines according to claim 2, wherein:

The first elastic mechanism (32) comprises two first arc-shaped plates (321) and a plurality of first elastic pieces (322);

Two first arc (321) rotationally install respectively in the one end that is close to of first telescopic link (31) be close to the outer wall of sealed pad (21) with the one end of the inner wall of clamp (1) is close to first telescopic link (31), a plurality of first elastic component (322) are around first telescopic link (31) install two between first arc (321), in every the inside of first elastic component (322) and install second telescopic link (323) between two first arc (321).

4. A downhole pipeline trachoma plugging device for coal mines as claimed in claim 3, wherein:

The clamp (1) comprises a first clamp body (11) and a second clamp body (12) which are in annular fit, and the first clamp body (11) and the second clamp body (12) are in opposite tightening fit through bolts (7) and nuts (8);

The inner wall of the first hoop body (11) and the outer wall of the sealing gasket (21) are provided with first plate grooves matched with the first arc plates (321), and the two first arc plates (321) are respectively embedded into the two first plate grooves.

5. The underground coal mine pipeline sand hole plugging device according to claim 4, wherein:

The occlusion device further comprises a positioning assembly (4);

The positioning component (4) is arranged on the inner wall of the sealing gasket (21), and the positioning component (4) can be inserted into a pipeline sand hole so as to position the pipeline sand hole.

6. The underground coal mine pipeline sand hole plugging device according to claim 5, wherein:

The positioning assembly (4) comprises a third telescopic rod (41) and a second elastic mechanism (42);

one end of the third telescopic rod (41) is installed on the inner wall of the sealing pad (21), the third telescopic rod (41) is located at the center of the sealing pad (21), and the second elastic mechanism (42) is installed on the third telescopic rod (41) and used for driving the third telescopic rod (41) to stretch.

7. The underground coal mine pipeline sand hole plugging device according to claim 6, wherein:

The second elastic mechanism (42) comprises a second arc-shaped plate (421), a plurality of second elastic pieces (422) and a positioning plate (423);

the second arc-shaped plate (421) is mounted at one end of the third telescopic rod (41) close to the sealing gasket (21), the positioning plate (423) is mounted at the end part of the third telescopic rod (41) far away from the sealing gasket (21), a plurality of second elastic pieces (422) are mounted between the second arc-shaped plate (421) and the positioning plate (423), and the second elastic pieces (422) are positioned around the third telescopic rod (41);

A plate groove matched with the second arc-shaped plate (421) is formed in the inner wall of the sealing gasket (21), and the second arc-shaped plate (421) is embedded into the plate groove;

And a fourth telescopic rod (424) is arranged in each second elastic piece (422), and the fourth telescopic rods (424) are arranged between the second arc-shaped plates (421) and the positioning plates (423) so as to limit the second elastic pieces (422).

8. The downhole pipeline trachoma plugging device for coal mines according to claim 7, wherein:

The second elastic mechanism (42) further comprises a telescopic housing (425);

The telescopic shell (425) is arranged between the second arc-shaped plate (421) and the top plate, and the third telescopic rod (41) and the plurality of second elastic pieces (422) are positioned inside the telescopic shell (425).

9. The downhole pipeline trachoma plugging device for coal mines according to claim 8, wherein:

Friction pads (22) are respectively arranged on the side walls of the two sides of the sealing pad (21) so as to improve the friction force of the sealing pad (21) on the pipeline.

10. The downhole pipeline trachoma plugging device for coal mines according to claim 8, wherein:

The plugging device also comprises a water outlet pipe (5) and a valve (6);

The water outlet pipe (5) is connected with the outer wall of the first hoop body (11) and the water outlet pipe (5) is communicated with the first telescopic rod (31) and the third telescopic rod (41), and the valve (6) is installed on the water outlet pipe (5).