CN212201970U - Single-action double-tube drilling tool - Google Patents
Single-action double-tube drilling tool Download PDFInfo
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- CN212201970U CN212201970U CN202020872634.7U CN202020872634U CN212201970U CN 212201970 U CN212201970 U CN 212201970U CN 202020872634 U CN202020872634 U CN 202020872634U CN 212201970 U CN212201970 U CN 212201970U
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Abstract
The utility model provides a single-action double-pipe drilling tool, which belongs to the technical field of drilling sampling and comprises a driving joint and a connecting joint, wherein a first water hole is arranged inside a first installation part, a conversion cavity is arranged inside the conversion part and is communicated with the installation hole through the first water hole, a first spherical groove is arranged at the top of the conversion cavity, a second spherical groove is arranged at the bottom of the conversion cavity, the first spherical groove is arranged obliquely above the second spherical groove, a sealing ball is arranged inside the conversion cavity, a second water hole and a third water hole are also arranged inside the conversion cavity, the second water hole and the third water hole are respectively communicated with the second spherical groove and the first spherical groove, the second water hole runs through the side part of the conversion part, and the inner pipe is conveniently cleaned by the single-action double-pipe drilling tool, and the drilling tool is convenient to lubricate and cool.
Description
Technical Field
The utility model relates to a probing sample technical field particularly, relates to a double-barrelled drilling tool of single action.
Background
Drilling coring is a common method used to obtain formation samples, and dual-tube drilling tools in which the outer tube rotates and the inner tube does not rotate during drilling are known as single-action dual-tube drilling tools. The single-action double-pipe drilling tool avoids the mechanical crushing of the rock core caused by the friction vibration generated by the rotation of the drilling tool, so the coring quality is high. In the drilling coring process, the drill bit needs to be continuously sprayed with flushing fluid, and then the drill bit is cooled and lubricated. In the drilling process of the single-action double-tube drilling tool, the phenomenon that the flushing fluid erodes the samples in the inner tube can often occur, the sample taking rate is greatly reduced, and the inner tube is inconvenient to clean after the samples in the inner tube are taken out.
SUMMERY OF THE UTILITY MODEL
In order to compensate above not enough, the utility model provides a double-barrelled drilling tool of single action aims at improving the double-barrelled drilling tool of single action and creeps into the in-process, and the phenomenon of the interior intraductal sample of flush fluid scouring often can appear to the sample takes out the inconvenient problem of carrying out the washing to the inner tube after the inner tube.
The utility model discloses a realize like this: a single-action double-pipe drilling tool comprises a driving joint, an outer pipe, a connecting joint, an inner pipe and a drill bit.
The drive joint includes first connecting portion, first installation department, conversion portion and second installation department, the inside mounting hole of having seted up of first connecting portion, the inside first water hole that is provided with of first installation department, the inside conversion chamber that is provided with of conversion portion, the conversion chamber passes through first water hole with the mounting hole intercommunication, the top in conversion chamber is provided with first spherical groove, the bottom in conversion chamber is provided with the spherical groove of second, first spherical groove sets up the oblique top in the spherical groove of second, conversion intracavity portion is provided with the sealing ball, conversion intracavity portion still is provided with second water hole and third water hole, the second water hole the third water hole respectively with the spherical groove of second first spherical groove intercommunication, the second water hole run through in the conversion portion lateral part.
The top of the outer tube is fixedly mounted on the first mounting portion.
The top of the connecting joint is rotatably installed in the second installation part, a sealed cavity and a water distribution chamber are arranged inside the connecting joint, the bottom of the third water hole is communicated with the water distribution chamber, the second installation part is rotatably installed in the sealed cavity in a sealed mode, a fourth water hole is arranged at the bottom of the connecting joint and penetrates through the bottom of the connecting joint, and the top of the fourth water hole is communicated with the water distribution chamber.
The inner pipe is fixedly arranged at the bottom of the connecting joint.
The drill bit is fixedly arranged at the bottom of the outer pipe.
The utility model discloses an in one embodiment, the conversion chamber is in the symmetry is provided with two in the conversion portion, first water hole the second water hole with the third water hole all corresponds and is provided with two, the mounting hole is through two first water hole respectively with two conversion chamber intercommunication, two the second water hole sets up respectively the both sides in conversion chamber.
In an embodiment of the utility model, the equal fixed mounting in both sides in conversion chamber has the pipe, the one end of pipe with second water hole intercommunication, the other end setting of pipe is in the outer tube with in the clearance between the inner tube.
The utility model discloses an in one embodiment, the inside installation room that is provided with of attach fitting, fixed mounting has the bearing on the second installation department, the second installation department passes through the bearing rotate install in the installation room.
In an embodiment of the present invention, the inner wall of the sealing cavity is provided with a first sealing gasket, and the second mounting portion is in interference fit with the first sealing gasket.
The utility model discloses an in one embodiment, fixedly connected with baffle on the second installation department, the sealed pad of baffle bottom fixedly connected with second, the sealed pad of second with attach fitting top interference fit.
In an embodiment of the present invention, the water outlet direction of the fourth water hole is tangential to the inner wall of the inner tube.
In an embodiment of the present invention, the fourth water hole is in the bottom of the annular array of the connection joint.
The utility model discloses an in one embodiment, the inside apopore that is provided with of drill bit, the apopore with the outer tube clearance between the inner tube aligns the setting, the apopore run through in the drill bit lateral wall.
In an embodiment of the present invention, the water outlet is disposed on the drill bit in an annular array.
The utility model has the advantages that: the utility model discloses a single action double-barrelled drilling tool that obtains through above-mentioned design, when using, the drive connection is connected with external drive equipment, be used for providing power, add flush fluid in to the drilling tool through the mounting hole, drill the stratum through the drill bit on the outer tube, sample the ground through the inner tube, when needing to wash the inner tube, the drive connection stops rotating, the ball sealer in the conversion chamber is in second spherical groove, the ball sealer blocks the second water hole, flush fluid in the conversion chamber can only flow to the minute chamber through the third water hole at this moment, and then spout through the fourth water hole, wash inner tube inner wall, when the core is got in the probing, the drive connection rotates, the ball sealer receives centrifugal force to move to the first spherical groove, the ball sealer blocks the third water hole, flush fluid in the conversion chamber can only flow through the second water hole at this moment, flushing fluid in the second water hole reaches between outer tube and the inner tube, and then flows to drill bit department, cools off the drill bit, lubricates the drilling tool, and the device passes through the rotation of drive connection and stops, adjusts the flow direction of flushing fluid, conveniently washs the inner tube to conveniently lubricate the drilling tool and cool off, reduce the washing fluid to the washing of the interior intraductal sample of reduction, promote the rate of taking of sample.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic front sectional view of a single-acting double-tube drilling tool according to an embodiment of the present invention;
fig. 2 is a schematic front sectional structural view of a driving joint according to an embodiment of the present invention;
FIG. 3 is an enlarged view of position A of FIG. 2;
fig. 4 is a schematic front sectional structural view of a connection joint according to an embodiment of the present invention.
In the figure: 100-a drive joint; 110 — a first connection; 111-mounting holes; 120-a first mounting portion; 121-a first water hole; 130-a converting section; 131-a conversion cavity; 132-a first spherical groove; 133-a second spherical groove; 134-sealing ball; 135-a second water hole; 136-a third water hole; 137-a catheter; 140-a second mounting portion; 141-a bearing; 142-a baffle; 143-a second gasket; 200-an outer tube; 300-a connection joint; 310-an installation room; 320-a sealed cavity; 321-a first gasket; 330-a third mounting portion; 331-a water separation chamber; 332-a fourth water hole; 400-inner tube; 500-a drill bit; 510-water outlet.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Examples
Referring to fig. 1, the present invention provides a technical solution: a single-acting double-pipe drilling tool comprises a driving joint 100, an outer pipe 200, a connecting joint 300, an inner pipe 400 and a drill bit 500.
Referring to fig. 2 and 3, the driving joint 100 includes a first connecting portion 110, a first mounting portion 120, a converting portion 130 and a second mounting portion 140, the first connecting portion 110 has a mounting hole 111 therein, the first mounting portion 120 has a first water hole 121 therein, the converting portion 130 has a converting cavity 131 therein, the converting cavity 131 is communicated with the mounting hole 111 through the first water hole 121, the converting cavity 131 has a first spherical groove 132 at a top thereof, the converting cavity 131 has a second spherical groove 133 at a bottom thereof, the first spherical groove 132 is disposed obliquely above the second spherical groove 133, the converting cavity 131 has a sealing ball 134 therein, the converting cavity 131 has a second water hole 135 and a third water hole 136 therein, the second water hole 135 and the third water hole 136 are respectively communicated with the second spherical groove 133 and the first spherical groove 132, and the second water hole 135 penetrates through a side portion of the converting portion 130.
In some specific embodiments, the conversion cavity 131 is symmetrically provided with two in the conversion portion 130, the first water hole 121, the second water hole 135 and the third water hole 136 are correspondingly provided with two, the mounting hole 111 is respectively communicated with the two conversion cavities 131 through the two first water holes 121, the two second water holes 135 are respectively arranged at two sides of the conversion cavity 131, the two conversion cavities 131, the first water holes 121, the second water holes 135 and the third water holes 136 are arranged, so that the outlet of the flushing liquid is increased, and the uniformity of the flushing liquid outlet is further increased.
In some specific embodiments, the guide tube 137 is fixedly installed on both sides of the conversion cavity 131, one end of the guide tube 137 is communicated with the second water hole 135, the other end of the guide tube 137 is disposed in the gap between the outer tube 200 and the inner tube 400, and the flushing fluid in the second water hole 135 is guided to the gap between the outer tube 200 and the inner tube 400 through the guide tube 137, so as to lubricate and cool the drilling tool.
In some specific embodiments, fixedly connected with baffle 142 on the second installation department 140, baffle 142 bottom fixedly connected with second sealed pad 143, second sealed pad 143 and attach fitting 300 top interference fit, baffle 142 and the setting of the sealed pad 143 of second for stop the flush fluid in the clearance between outer tube 200 and inner tube 400, prevent it to get into in the installation room 310, and then prevent inside the flush fluid gets into inner tube 400, reduce the washing of the interior sample of flush fluid to inner tube 400, promote the rate of taking of sample.
The top of the outer tube 200 is threadedly mounted to the first mounting part 120.
Referring to fig. 4, an installation chamber 310 is disposed inside the connection joint 300, a bearing 141 is fixedly installed on the second installation portion 140, the second installation portion 140 is rotatably installed in the installation chamber 310 through the bearing 141, a sealing chamber 320 and a water diversion chamber 331 are disposed inside the connection joint 300, the bottom of the third water hole 136 is communicated with the water diversion chamber 331, the second installation portion 140 is rotatably installed in the sealing chamber 320 in a sealing manner, a fourth water hole 332 is disposed at the bottom of the connection joint 300, the fourth water hole 332 penetrates through the bottom of the connection joint 300, and the top of the fourth water hole 332 is communicated with the water diversion chamber 331.
In some specific embodiments, the inner wall of the sealed cavity 320 is provided with a first sealing gasket 321, the second mounting portion 140 is in interference fit with the first sealing gasket 321, and the first sealing gasket 321 is provided to increase the sealing performance between the second mounting portion 140 and the sealed cavity 320.
The inner pipe 400 is screw-fitted to the third fitting part 330 at the bottom of the coupling joint 300.
In some specific embodiments, the water outlet direction of the fourth water hole 332 is tangent to the inner wall of the inner tube 400, so that the flushing liquid in the fourth water hole 332 can be rotationally flushed along the wall of the inner tube 400 when entering the inner tube 400, the cleaning effect on the inner tube 400 is increased, the fourth water hole 332 is arranged in the annular array at the bottom of the connecting joint 300, the water outlet positions of the fourth water holes 332 are increased due to the arrangement of the plurality of fourth water holes 332, and the flushing effect is further increased.
The drill 500 is fixedly installed at the bottom of the outer tube 200.
In some specific embodiments, the inside apopore 510 that is provided with of drill bit 500, apopore 510 and outer tube 200, the setting is alignd in the clearance between inner tube 400, apopore 510 runs through in the lateral wall of drill bit 500, apopore 510 sets up in the annular array on drill bit 500, the washing liquid in outer tube 200 and the inner tube 400 clearance gets into apopore 510 and flows out, lubricate the drilling tool and cool off, apopore 510 runs through in the lateral wall of drill bit 500, apopore 510 inclines to the drill bit 500 outside, reduce washing of the sample of washing liquid to the inner tube 400 bottom, promote the rate of taking of sample.
The working principle is as follows: when the core drilling tool is used, the driving connector 100 is connected with external driving equipment and used for providing power, flushing liquid is added into the drilling tool through the mounting hole 111, a drill 500 on the outer pipe 200 is used for drilling a hole in the stratum, rock and soil are sampled through the inner pipe 400, when the inner pipe 400 needs to be cleaned, the driving connector 100 stops rotating, the sealing ball 134 in the conversion cavity 131 is positioned in the second spherical groove 133, the sealing ball 134 blocks the second water hole 135, the flushing liquid in the conversion cavity 131 only flows into the water diversion chamber 331 through the third water hole 136 and then is sprayed out through the fourth water hole 332 to clean the inner wall of the inner pipe 400, when core drilling is performed, the driving connector 100 rotates, the sealing ball 134 moves into the first spherical groove 132 under the action of centrifugal force, the sealing ball 134 blocks the third water hole 136, and the flushing liquid in the conversion cavity 131 only flows out through the second water hole 135, the flushing fluid in the second water hole 135 flows between the outer pipe 200 and the inner pipe 400, and then flows to the drill 500, so as to cool the drill 500 and lubricate the drilling tool.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A single-action double-tube drilling tool is characterized by comprising
The driving joint (100) comprises a first connecting part (110), a first mounting part (120), a conversion part (130) and a second mounting part (140), wherein a mounting hole (111) is formed in the first connecting part (110), a first water hole (121) is formed in the first mounting part (120), a conversion cavity (131) is formed in the conversion part (130), the conversion cavity (131) is communicated with the mounting hole (111) through the first water hole (121), a first spherical groove (132) is formed in the top of the conversion cavity (131), a second spherical groove (133) is formed in the bottom of the conversion cavity (131), the first spherical groove (132) is formed in the oblique upper portion of the second spherical groove (133), a sealing ball (134) is formed in the conversion cavity (131), a second water hole (135) and a third water hole (136) are formed in the conversion cavity (131), the second water hole (135) and the third water hole (136) are respectively communicated with the second spherical groove (133) and the first spherical groove (132), and the second water hole (135) penetrates through the side part of the conversion part (130);
an outer tube (200), wherein the top of the outer tube (200) is fixedly mounted on the first mounting part (120);
the top of the connecting joint (300) is rotatably installed on the second installation part (140), a sealing cavity (320) and a water distribution chamber (331) are arranged inside the connecting joint (300), the bottom of the third water hole (136) is communicated with the water distribution chamber (331), the second installation part (140) is rotatably installed in the sealing cavity (320) in a sealing manner, a fourth water hole (332) is formed in the bottom of the connecting joint (300), the fourth water hole (332) penetrates through the bottom of the connecting joint (300), and the top of the fourth water hole (332) is communicated with the water distribution chamber (331);
the inner pipe (400), the said inner pipe (400) is fixedly mounted to the bottom of the said connection joint (300);
the drill bit (500), drill bit (500) is fixed mounting in outer tube (200) bottom.
2. The single-acting double-pipe drilling tool according to claim 1, wherein the switching chamber (131) is symmetrically provided with two in the switching portion (130), the first water hole (121), the second water hole (135) and the third water hole (136) are correspondingly provided with two, the mounting hole (111) is respectively communicated with the two switching chambers (131) through the two first water holes (121), and the two second water holes (135) are respectively provided at both sides of the switching chamber (131).
3. The single-acting double-pipe drilling tool according to claim 1, wherein guide pipes (137) are fixedly installed at both sides of the conversion cavity (131), one ends of the guide pipes (137) are communicated with the second water holes (135), and the other ends of the guide pipes (137) are disposed in a gap between the outer pipe (200) and the inner pipe (400).
4. A single-acting double-pipe drilling tool according to claim 1, wherein the joint (300) is provided therein with a mounting chamber (310), the second mounting portion (140) is fixedly mounted with a bearing (141), and the second mounting portion (140) is rotatably mounted to the mounting chamber (310) through the bearing (141).
5. A single-acting double tube drilling tool according to claim 1, wherein the inner wall of the sealing chamber (320) is provided with a first sealing gasket (321), and the second mounting part (140) is in interference fit with the first sealing gasket (321).
6. The single-action double-tube drilling tool as claimed in claim 1, wherein a baffle plate (142) is fixedly connected to the second mounting portion (140), a second sealing gasket (143) is fixedly connected to the bottom of the baffle plate (142), and the second sealing gasket (143) is in interference fit with the top of the connecting joint (300).
7. The single-acting double-barreled drilling tool as set forth in claim 1, wherein the water outlet direction of the fourth water hole (332) is tangentially arranged to the inner wall of the inner pipe (400).
8. A single-action double-tube drilling tool according to claim 1, wherein the fourth water holes (332) are arranged in an annular array at the bottom of the connector (300).
9. Single-action double-tube drilling tool according to claim 1, wherein the drilling head (500) is provided with an outlet hole (510) inside, the outlet hole (510) is aligned with the gap between the outer tube (200) and the inner tube (400), and the outlet hole (510) penetrates through the side wall of the drilling head (500).
10. Single-action double-barreled drilling tool according to claim 9, wherein said water outlet holes (510) are arranged in an annular array on said drill head (500).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020872634.7U CN212201970U (en) | 2020-05-22 | 2020-05-22 | Single-action double-tube drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020872634.7U CN212201970U (en) | 2020-05-22 | 2020-05-22 | Single-action double-tube drilling tool |
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| Publication Number | Publication Date |
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| CN212201970U true CN212201970U (en) | 2020-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020872634.7U Active CN212201970U (en) | 2020-05-22 | 2020-05-22 | Single-action double-tube drilling tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116517468A (en) * | 2023-06-25 | 2023-08-01 | 四川路桥华东建设有限责任公司 | Drilling and sampling device for side wall of rock mass for tunnel construction survey |
-
2020
- 2020-05-22 CN CN202020872634.7U patent/CN212201970U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116517468A (en) * | 2023-06-25 | 2023-08-01 | 四川路桥华东建设有限责任公司 | Drilling and sampling device for side wall of rock mass for tunnel construction survey |
| CN116517468B (en) * | 2023-06-25 | 2023-08-25 | 四川路桥华东建设有限责任公司 | Drilling and sampling device for side wall of rock mass for tunnel construction survey |
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