1. The utility model provides a drilling high pressure water plugging device, includes fixed pipe (1) and slip casting pipe (9), its characterized in that: the top of fixed pipe (1) is provided with external screw thread pipe (2), the top of external screw thread pipe (2) is provided with connecting pipe (11), the top of connecting pipe (11) with the both ends of slip casting pipe (9) all are provided with ring flange (10), pass through between connecting pipe (11) and the slip casting pipe (9) ring flange (10) fixed connection, a plurality of sepage hole (22) have been seted up to the surface of fixed pipe (1) is intensive, one side of connecting pipe (11) is provided with discharge pipe (8), the one end of discharge pipe (8) is provided with gate valve (7), the inside fixed mounting of slip casting pipe (9) has cross mounting bracket (18), the intermediate position department fixed mounting of cross mounting bracket (18) one side has sleeve pipe (17), the inside movable mounting of sleeve pipe (17) has telescopic link (19), the top of telescopic link (19) is provided with installation piece (15), and a blocking ball (20) is fixedly arranged at the top of the mounting block (15).

2. The drilling high pressure water plugging device of claim 1, wherein: the outer thread pipe (2) is threaded and sleeved with an inner thread sleeve (6), and a positioning disc (4) is fixedly arranged at the bottom of the inner thread sleeve (6).

3. The drilling high pressure water plugging device of claim 2, wherein: four locating levers (5), four are installed to equidistant circumference on location disc (4) the latter half of locating lever (5) surface all is provided with barb (3).

4. The drilling high pressure water plugging device of claim 1, wherein: the telescopic rod (19) is sleeved with a spring (16), and the spring (16) is located between the sleeve (17) and the mounting block (15).

5. The drilling high pressure water plugging device of claim 1, wherein: the inner fixed mounting of the grouting pipe (9) is provided with a blocking block (13), the blocking block (13) is close to the middle position of one side of the blocking ball (20) and is provided with a hemispherical groove (14), and the middle position of the top of the hemispherical groove (14) is provided with a through hole (21).

6. The drilling high pressure water plugging device of claim 1, wherein: the bottom fixed mounting of positioning disc (4) has rubber packing ring (12), rubber packing ring (12) with through welded fastening between positioning disc (4).

Background

In mine operation, after drilling a hole in a coal rock stratum, gas and water in the coal rock stratum are pumped and discharged so as to be reused; the basic steps of the gas extraction technology are firstly drilling a hole in a coal seam, secondly sending a gas drainage pipe into the drilled hole, and then sealing the hole.

The existing process of plugging a drill hole is poor in fixing effect between a hole sealing device and a rock mass, the hole sealing device is easy to separate from the rock mass after being subjected to large water pressure, hole sealing failure is caused, the potential safety hazard is large, efficiency is low in the plugging process, gas leakage and other conditions are caused, the gas extraction quality is reduced, the inconvenience is realized, certain influence is brought in the using process, and the problem of solving the problem is solved by the high-pressure water plugging device for the drill hole.

Disclosure of Invention

The invention aims to provide a drilling high-pressure water plugging device to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a drilling high pressure water plugging device, includes fixed pipe and slip casting pipe, the top of fixed pipe is provided with external screw thread pipe, external screw thread pipe's top is provided with the connecting pipe, the top of connecting pipe with the both ends of slip casting pipe all are provided with the ring flange, the connecting pipe with pass through between the slip casting pipe ring flange fixed connection, a plurality of sepage hole has been seted up to fixed pipe's surperficial intensive, one side of connecting pipe is provided with the discharge pipe, the one end of discharge pipe is provided with the gate valve, the inside fixed mounting of slip casting pipe has the cross mounting bracket, the intermediate position department fixed mounting of cross mounting bracket one side has the sleeve pipe, sheathed tube inside movable mounting has the telescopic link, the top of telescopic link is provided with the installation piece, the top fixed mounting of installation piece has the shutoff ball.

Preferably, the external thread pipe is provided with an internal thread sleeve in a threaded sleeve connection mode, and the bottom of the internal thread sleeve is fixedly provided with a positioning disc.

Preferably, four locating levers, four are installed to equidistant circumference on the positioning disc the latter half of locating lever surface all is provided with the barb.

Preferably, a spring is sleeved on the telescopic rod and is positioned between the sleeve and the mounting block.

Preferably, the inside fixed mounting of slip casting pipe has the shutoff piece, the shutoff piece is close to the intermediate position department of shutoff ball one side has seted up the hemisphere type recess, the intermediate position department at board sphere type recess top has seted up the through-hole.

Preferably, the bottom of the positioning disk is fixedly provided with a rubber gasket, and the rubber gasket is fixed with the positioning disk through welding.

Compared with the prior art, the invention has the beneficial effects that: the device is scientific and reasonable in structure and safe and convenient to use, one end of the fixed pipe is inserted into a drill hole of a rock body, the internal thread sleeve is rotated to move towards one end of the fixed pipe, the positioning disc is tightly contacted with the rock body, the rubber gasket is tightly pressed to prevent leakage, the four positioning rods are respectively nailed into the rock body, the device is fixedly connected with the rock body, the device can be prevented from being easily separated from the rock body after being subjected to high water pressure, in the installation process, water and gas in the rock body firstly enter the fixed pipe, then enter the external threaded pipe and then enter the connecting pipe, the interior of the grouting pipe can be plugged through the elasticity of the spring, the water and the gas in the rock body are prevented from overflowing from the grouting pipe, the plugging effect is prevented, and the plugging effect is good.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a cross-sectional view of a grout tube of the present invention;

in the figure: 1. a fixed tube; 2. an externally threaded tube; 3. a barb; 4. positioning the disc; 5. positioning a rod; 6. an internal thread sleeve; 7. a gate valve; 8. a discharge pipe; 9. a grouting pipe; 10. a flange plate; 11. a connecting pipe; 12. a rubber gasket; 13. a plugging block; 14. a hemispherical groove; 15. mounting blocks; 16. a spring; 17. a sleeve; 18. a cross mounting bracket; 19. a telescopic rod; 20. plugging the ball; 21. a through hole; 22. and (4) liquid seepage holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a drilling high pressure water plugging device technical scheme, including fixed pipe 1 and slip casting pipe 9, the top of fixed pipe 1 is provided with external screw thread pipe 2, the top of external screw thread pipe 2 is provided with connecting pipe 11, the top of connecting pipe 11 and the both ends of slip casting pipe 9 all are provided with ring flange 10, through ring flange 10 fixed connection between connecting pipe 11 and the slip casting pipe 9, a plurality of sepage hole 22 has intensively been seted up on the surface of fixed pipe 1, one side of connecting pipe 11 is provided with discharge pipe 8, the one end of discharge pipe 8 is provided with gate valve 7, the inside fixed mounting of slip casting pipe 9 has cross mounting bracket 18, the intermediate position department fixed mounting of cross mounting bracket 18 one side has sleeve pipe 17, the inside movable mounting of sleeve pipe 17 has telescopic link 19, the top of telescopic link 19 is provided with installation piece 15, the top fixed mounting of installation piece 15 has plugging ball 20.

Preferably, the external threaded pipe 2 is provided with an internal threaded sleeve 6 in a threaded sleeve manner, and the bottom of the internal threaded sleeve 6 is fixedly provided with a positioning disc 4, so that the position of the positioning disc 4 can be conveniently adjusted according to actual conditions.

Preferably, four locating levers 5 are installed to equidistant circumference on the positioning disc 4, and the latter half of four locating levers 5 surfaces all is provided with barb 3, with four locating levers 5 in the rock mass, and then make this device and rock mass fixed connection, can prevent that the device from receiving behind the great water pressure easy and the rock mass between take place the separation.

Preferably, the telescopic rod 19 is sleeved with a spring 16, the spring 16 is located between the sleeve 17 and the mounting block 15, the sealing block 13 is fixedly mounted inside the grouting pipe 9, a hemispherical groove 14 is formed in the middle position of the sealing block 13 close to one side of the sealing ball 20, a through hole 21 is formed in the middle position of the top of the hemispherical groove 14, and the inside of the grouting pipe 9 can be sealed through the elasticity of the spring 16.

Preferably, the bottom of the positioning disk 4 is fixedly provided with a rubber gasket 12, and the rubber gasket 12 and the positioning disk 4 are fixed by welding, so that the sealing performance is enhanced and leakage is prevented.

The working principle is as follows: before use, the safety of each structure of the invention is checked, one end of a fixed pipe 1 is inserted into a drilled hole of a rock body, an internal thread sleeve 6 is rotated to enable the internal thread sleeve 6 to move towards one end of the fixed pipe 1, so that a positioning disc 4 is tightly contacted with the rock body and a rubber gasket 12 is tightly pressed to prevent leakage, four positioning rods 5 are respectively nailed into the rock body, so that the device is fixedly connected with the rock body, the device can be prevented from being easily separated from the rock body after being subjected to high water pressure, in the installation process, water and gas in the rock body firstly enter the fixed pipe 1, then enter the external thread pipe 2 and then enter the connecting pipe 11, the inner part of a grouting pipe 9 can be blocked through the elasticity of a spring 16 to prevent the grouting pipe 9 from overflowing, and a relevant grouting device can be connected through a flange plate 10 at one end of the grouting pipe 9, and grouting is carried out, the pressure inside the grouting pipe 9 is gradually increased in the grouting process, when the pressure is greater than the pressure inside the connecting pipe 11, the spring 16 is compressed, the through hole 21 is opened, the grout sequentially enters the connecting pipe 11, the external threaded pipe 2 and the fixed pipe 1, finally enters the position where the fixed pipe 1 is connected with the inner wall of the drilled hole through the liquid seepage hole 22, and the drilling hole can be plugged after the grout is solidified.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus, and any standard components found in known art that may be commercially available or commercially available and may be readily customized based on the teachings of the specification and the drawings, and that the particular connection between the various components is by conventional means well known in the art, and that the machine, component, or apparatus is by model and circuit connection is by conventional means well known in the art, and will not be described in detail herein.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.