Simple device for underground gas drainage in coal seam gas extraction drill hole
Technical Field
The utility model relates to a gas drainage technical field, in particular to a simple and easy device that is used for this coal seam gas in pit to take out and take out interior drainage of drilling.
Background
Along with the development of advanced science and technology of society, people obtain certain improvement to the development technique and the utilization ratio of the energy, and in carrying out gas exploitation, people often can discharge through the pipeline to the inside gas of soil and water, consequently can know that present simple and easy device that is used for this coal seam gas in pit to take out and adopts the interior drainage of drilling basically satisfies people's demand, but still has some problems.
However, the existing simple device for draining water in the underground coal seam gas extraction drill hole is not convenient and fast because the connection mode between pipelines is usually a bolt, and workers need to install the device by means of multiple auxiliary tools; the existing simple device for draining water in the underground coal seam gas extraction drill hole is easy to leak at the joint of pipelines due to the fact that the sealing performance between the pipelines is not high, and therefore the problem is solved by the simple device for draining water in the underground coal seam gas extraction drill hole.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a simple and easy device that is arranged in this coal seam gas drainage drilling in pit to be connected the problem convenient inadequately and that the pipe connection department does not set up sealing mechanism between the pipeline that proposes in solving above-mentioned background art and the pipeline.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a simple and easy device that is used for this coal seam gas to take out drainage in drilling in pit includes: the drill bit extension pipe comprises a drill bit extension pipe body and a connecting pipe body, wherein the connecting pipe body is attached to the bottom end of the drill bit extension pipe body, a fixing mechanism is arranged inside the connecting pipe body, and a sealing mechanism is arranged on the inner wall of the drill bit extension pipe body.
Preferably, the fixing mechanism comprises a first cavity, the connecting pipe body is internally provided with the first cavity, the bottom end of the drill bit extension pipe body is fixedly connected with an extension plate, the bottom end of the extension plate is inserted into the first cavity, the inner wall of the first cavity is attached with a pressing plate, the top end of the pressing plate is attached with the extension plate, the extension plate is internally provided with a first groove,
preferably, a second cavity is arranged in the connecting pipe main body, a first limiting rod is arranged in the second cavity, one end, far away from the inner wall of the second cavity, of the first limiting rod is inserted into the first groove, a side plate is fixedly connected to the right side of the first limiting rod, a pull rod is fixedly connected to the right side of the side plate,
preferably, the connecting pipe main part top has linked firmly the backup pad, and the backup pad is inside to run through there is the pull rod, the winding of pull rod outer wall has the second spring, and the second spring right side links firmly in the backup pad outer wall, the inside second recess of having seted up of backup pad, and the inside ball that is equipped with of inserting of second recess, the inside second gag lever post that has run through of ball, and the laminating of ball bottom in the pull rod outer wall, the one end that the curb plate outer wall was kept away from to the pull rod has linked firmly the arm-tie.
Preferably, the sealing mechanism comprises a first arc-shaped rubber pad, the first arc-shaped rubber pad is glued to the inner wall of the drill bit extension pipe main body, a second arc-shaped rubber pad is glued to the outer wall of the connecting pipe main body, a first square-shaped rubber pad is glued to the inner wall of the drill bit extension pipe main body, a second square-shaped rubber pad is glued to the inner wall of the drill bit extension pipe main body, and the plate block is fixedly connected to the inner wall of the drill bit extension pipe main body.
Preferably, first cavity has first articulated mast through pivot swing joint, and the one end that first cavity inner wall was kept away from to first articulated mast articulates there is the second articulated mast, the one end that first articulated mast was kept away from to the second articulated mast has the clamp plate through pivot swing joint, and the second articulated mast outer wall has linked firmly first spring, the one end that second articulated mast outer wall was kept away from to first spring links firmly in first articulated mast outer wall.
Preferably, the inside spout of having seted up of second cavity, and the inside sliding connection of spout has the slider, the slider top links firmly the curb plate.
Preferably, the right side of the pulling plate is fixedly connected with a fixed handle, and the fixed handle is U-shaped.
Preferably, the left side of the pulling plate is attached with a fixing pad, and the left side of the fixing pad is fixedly connected with the outer wall of the supporting plate.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the simple device for draining water in the underground coal seam gas extraction drill hole is provided with a first cavity, an extension plate, a first hinge rod, a second hinge rod, a pressing plate, a first spring, a first groove, a second cavity, a first limiting rod, a side plate, a sliding chute, a sliding block, a pull rod, a supporting plate, a second spring, a second groove, a ball, a second limiting rod, a pull plate, a fixed handle and a fixed pad, wherein the first cavity fixedly connected with the bottom end of a drill bit extension pipe main body enters the inner wall of the extension plate and is attached to the inner wall of the extension plate to move until the bottom end of the extension plate is attached to the pressing plate, the right sides of the first hinge rod and the second hinge rod are close to each other through pressure, the first spring generates elastic deformation, the first limiting rod can be clamped with the extension plate to enter the first groove, the problem that connection between a pipeline and a pipeline is not convenient enough is solved, and the connection mode between the pipeline and the pipeline is changed, the pipeline splicing and installing device has the advantages that workers can splice and install pipelines more conveniently and quickly only through simple operation, and the installing efficiency of the workers is further improved;
2. this a simple and easy device that is used for this coal seam gas to take out drainage in taking out drilling in pit is provided with, first arc rubber pad, second arc rubber pad, first square rubber pad, second square rubber pad and plate, first arc rubber pad and second arc rubber pad have increased the leakproofness when drill bit extension pipe main part is connected with the connecting pipe main part, have solved the problem that the pipe connection department does not set up sealing mechanism, through setting up this sealing mechanism, have avoided the condition that appears leaking between pipeline and the pipeline butt joint, have further improved staff's personal safety.
Drawings
FIG. 1 is a schematic front sectional view of a simple device for draining water in a gas extraction borehole of a coal seam in a well;
FIG. 2 is a schematic front view of a partial cross-sectional view of a fixing mechanism of the simple device for draining water in a gas extraction borehole of a coal seam in a well;
fig. 3 is an enlarged schematic view of a structure at a position a in fig. 2 of the simple device for draining water in the underground coal seam gas extraction drill hole of the utility model;
fig. 4 is the utility model relates to a B department's enlarged schematic diagram of structure in fig. 1 that is arranged in this coal seam gas drainage borehole drainage's in pit simple and easy device.
In the figure: 1. a drill bit extension tube body; 2. a connecting pipe main body; 311. a first chamber; 312. an extension plate; 313. a first hinge lever; 314. a second hinge lever; 315. pressing a plate; 316. a first spring; 317. a first groove; 318. a second chamber; 319. a first limit rod; 320. a side plate; 321. a chute; 322. a slider; 323. a pull rod; 324. a support plate; 325. a second spring; 326. a second groove; 327. a ball bearing; 328. a second limiting rod; 329. pulling a plate; 330. fixing a handle; 331. a fixing pad; 411. a first arc-shaped rubber pad; 412. a second arc-shaped rubber pad; 413. a first square rubber pad; 414. a second square rubber pad; 415. and (4) a plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Referring to fig. 1-4, a simple device for draining water in a gas extraction borehole of a downhole coal seam comprises: the drill bit extension pipe comprises a drill bit extension pipe body 1 and a connecting pipe body 2, the connecting pipe body 2 is attached to the bottom end of the drill bit extension pipe body 1, a fixing mechanism is arranged inside the connecting pipe body 2 and comprises a first cavity 311, a first cavity 311 is formed inside the connecting pipe body 2, an extension plate 312 is fixedly connected to the bottom end of the drill bit extension pipe body 1, the bottom end of the extension plate 312 is inserted into the first cavity 311, a pressing plate 315 is attached to the inner wall of the first cavity 311, the extension plate 312 is attached to the top end of the pressing plate 315, a first groove 317 is formed inside the extension plate 312, a second cavity 318 is formed inside the connecting pipe body 2, a first limiting rod 319 is arranged inside the second cavity 318, one end, far away from the inner wall of the second cavity 318, of the first limiting rod 319 is inserted into the first groove 317, a side plate 320 is fixedly connected to the right side of the first limiting rod 319, a pull rod 323 is fixedly connected to the right side of the side plate 320, a supporting plate 324 is fixedly connected to the top end of the connecting pipe body 2, and the inside pull rod 323 that has run through of backup pad 324, the outer wall of pull rod 323 twines second spring 325, and the second spring 325 right side links firmly in the backup pad 324 outer wall, and the inside second recess 326 of having seted up of backup pad 324, and inside ball 327 that is inserted of second recess 326, and the inside second gag lever post 328 that has run through of ball 327, and the bottom laminating of ball 327 in pull rod 323 outer wall, the one end that the outer wall of curb plate 320 was kept away from to pull rod 323 links firmly arm 329.
The inner wall of the drill bit extension pipe main body 1 is provided with a sealing mechanism, the sealing mechanism comprises a first arc-shaped rubber pad 411, the inner wall of the drill bit extension pipe main body 1 is glued with the first arc-shaped rubber pad 411, the outer wall of the connecting pipe main body 2 is glued with a second arc-shaped rubber pad 412, the inner wall of the drill bit extension pipe main body 1 is glued with a first square-shaped rubber pad 413, the inner wall of the drill bit extension pipe main body 1 is glued with a second square-shaped rubber pad 414, and the inner wall of the drill bit extension pipe main body 1 is fixedly connected with a plate 415.
First cavity 311 is connected with first articulated rod 313 through pivot swing joint, and the one end that first articulated rod 313 kept away from first cavity 311 inner wall articulates there is second articulated rod 314, the one end that first articulated rod 313 was kept away from to second articulated rod 314 has clamp plate 315 through pivot swing joint, and second articulated rod 314 outer wall has linked firmly first spring 316, the one end that second articulated rod 314 outer wall was kept away from to first spring 316 links firmly in first articulated rod 313 outer wall, make first gag lever post 319 get into first recess 317 inside play the effect of assistance-localization real-time.
The inside spout 321 that has seted up of second chamber 318, and the inside sliding connection of spout 321 has slider 322, and slider 322 top links firmly curb plate 320, slows down the wearing and tearing that curb plate 320 produced second chamber 318 inner wall when removing.
The fixed handle 330 is fixedly connected to the right side of the pulling plate 329, the fixed handle 330 is in a U shape, the design of the U shape is more suitable for the hand radian of a worker, and the worker can conveniently pull the fixed handle.
The left side of the pulling plate 329 is attached with a fixing pad 331, and the left side of the fixing pad 331 is fixedly connected with the outer wall of the supporting plate 324, so that the impact of the pulling plate 329 on the outer wall of the supporting plate 324 under the elastic action of the second spring 325 when a worker loosens the fixing handle 330 is relieved.
The working principle is as follows: when the drill bit extension pipe main body 1 needs to be in butt joint with the connecting pipe main body 2, the first cavity 311 fixedly connected with the bottom end of the drill bit extension pipe main body 1 enters the inner wall of the extension plate 312, the extension plate 312 is attached to the inner wall of the extension plate 312 and moves until the bottom end of the extension plate 312 is attached to the pressing plate 315, the first hinge rod 313 and the right side of the second hinge rod 314 are close to each other through pressure, the first spring 316 generates elastic deformation, the first limiting rod 319 can be clamped with the extension plate 312 and enters the first groove 317, when the drill bit extension pipe main body 1 and the connecting pipe main body 2 need to be detached, the fixed handle 330 is pulled firstly, the ball 327 drives the pull rod 323, the first groove 317 is attached to the outer wall of the pull rod 323 and rolls, the side plate 320 drives the sliding block 322 to move rightwards inside the sliding groove 321, the second spring 325 generates elastic deformation, and the first limiting rod 319 is separated from the inside of the first groove 317.
The first arc-shaped rubber pad 411 and the second arc-shaped rubber pad 412 are arranged to increase the sealing performance when the drill bit extension pipe body 1 is connected with the connecting pipe body 2, and when water flows into the connecting pipe body 2 through the inner wall of the drill bit extension pipe body 1, impact can be generated on the plate 415, and the second square-shaped rubber pad 414 is arranged to generate buffering soil stress on the water flows.
This a simple and easy device that is used for this coal seam gas to take out drainage in taking out drilling in pit is provided with, first arc rubber pad, second arc rubber pad, first square rubber pad, second square rubber pad and plate, first arc rubber pad and second arc rubber pad have increased the leakproofness when drill bit extension pipe main part is connected with the connecting pipe main part, the problem of the pipe connection department not set up sealing mechanism has been solved, through setting up this sealing mechanism, the condition of leaking has been avoided appearing between pipeline and the pipeline butt joint, personnel's personal safety has further been improved to the staff
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.