CN218439257U - Reverse circulation drilling rod and drilling tool - Google Patents

Abstract

The application discloses drilling rod and drilling tool includes: the drill rod comprises a drill rod body, a drill rod body and a drill rod body, wherein a high-pressure air passage is arranged along the axial direction of the drill rod body; the drill rod comprises a drill rod body, a male joint and a female joint, wherein the male joint and the female joint are respectively arranged at two ends of the drill rod body and are connected through a bolt component; the slag discharging pipe is arranged in the drill rod body and along the axial direction of the drill rod body, and the slag discharging pipe is provided with a small hole end and a large hole end which are matched with each other; when the male joint and the female joint of the adjacent drill rod bodies are in a matched and communicated state, the small hole end of the adjacent slag discharge pipe is inserted into the large hole end. The application provides a drilling rod and drilling tool compares in prior art, can use with the impacter cooperation, and is convenient for arrange the sediment.

Description

Reverse circulation drilling rod and drilling tool

Technical Field

The application relates to the technical field of drilling construction, in particular to a reverse circulation drill rod and a drilling tool.

Background

In present drilling operation, preceding, through threaded connection between two back group's drilling rods, be connected through the screw thread between convex joint and the concave joint promptly, but adopt threaded connection, need make the drilling rod be rotary motion with the help of machinery, the centering is kept flat also is difficult to master between two drilling rods, and the screw thread is lost easily, lead to the connection between two drilling rods easily to appear the pine and take off and the dead condition of stinging, especially to some large-scale drilling rods, its structure is more complicated, and is heavier, lead to it to dismantle more complicated, inconvenient dismantlement.

Therefore, a reverse circulation drill rod and a drilling tool are needed, which have simple structures and easy operation and can be detached and replaced more conveniently.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the application provides a reverse circulation drilling rod and a drilling tool, which are simple in structure, easy to operate and capable of more conveniently disassembling and replacing the drilling rod.

The technical scheme provided by the application is as follows:

a reverse circulation drill pipe comprising:

the drill rod body is provided with a high-pressure air passage along the axial direction of the drill rod body;

the male joint and the female joint are respectively arranged at two ends of the drill rod body and are connected through a bolt component;

the slag discharging pipe is arranged in the drill rod body and along the axial direction of the drill rod body, and the slag discharging pipe is provided with a small hole end and a large hole end which are matched with each other;

when the male joint and the female joint of the adjacent drill rod bodies are in a matched and communicated state, the small hole end of the adjacent slag discharge pipe is inserted into the large hole end.

Preferably, the slag discharge pipe is detachably connected with the drill rod body through a connecting assembly.

Preferably, the connection assembly includes:

the installation channel is arranged in the drill rod body, a first limiting step is arranged on the inner wall of the installation channel, and a convex block matched with the first limiting step is arranged at the small hole end of the slag discharging pipe;

the positioning piece is sleeved at the large hole end of the slag discharge pipe;

the drill rod body is detachably connected with the drill rod body, the mounting channel is arranged at one end, away from the first limiting step, of the mounting channel, and the locating part is detachably connected with the drill rod body.

Preferably, the first and second liquid crystal display panels are,

the locating part is specifically for being equipped with the open-ended jump ring, be provided with on the inner wall of installation passageway and be used for the installation the mounting ring groove of jump ring.

Preferably, the positioning member comprises a first positioning sleeve and a second positioning sleeve;

and a cambered surface matched with the shaft neck of the slag discharge pipe is arranged between the first positioning sleeve and the second positioning sleeve.

Preferably, the latch assembly includes:

a first pin hole provided on the male connector;

the second bolt hole is arranged on the female joint and is matched with the first bolt hole;

when the male joint and the female joint of the adjacent drill rod bodies are in a matched and communicated state, the pin shaft can be inserted into the second bolt hole and the first bolt hole, and the adjacent drill rod bodies are fixed.

Preferably, the bolt assemblies are arranged in at least two groups, and the bolt assemblies are arranged at intervals along the axial direction of the drill rod body.

Preferably, the method further comprises the following steps:

the guide column is arranged at one end of the male joint, which is far away from the drill rod body;

the mounting groove is arranged in the female joint and is matched with the guide column for use;

and a second sealing element is arranged on the outer surface of the guide post.

Preferably, the method further comprises the following steps:

the mounting seat is arranged at the joint of the male joint and the drill rod body;

the mounting opening is arranged on the female joint and is matched with the outer diameter of the mounting seat;

and the inner surface of the mounting opening is provided with a third sealing element.

A drilling tool comprising a reverse circulation drill pipe as claimed in any one of the preceding claims.

The utility model provides a reverse circulation drilling rod, at first owing to be provided with the drilling rod body, high-pressure air flue, the male joint, female joint and bolt assembly, wherein, high-pressure air flue sets up along the axis direction of drilling rod body, male joint and female joint set up respectively at the both ends of drilling rod body, and be connected through bolt assembly between male joint and the female joint, when dismantling the drilling rod, only need with bolt assembly remove can, compare with the threaded connection among the prior art, the structure is simpler, and dismantle and change the drilling rod more conveniently. Secondly, the drilling rod among the prior art adopts threaded connection, drilling rod among the prior art is not provided with the scum pipe that is used for arranging the sediment, this application still is provided with the scum pipe, a residue for the bottom of the hole of discharging, the scum pipe sets up at the drilling rod originally internally, and set up along the axis direction of drilling rod body, and stretch out from the drilling rod originally internally at the both ends of scum pipe, the scum pipe has aperture end and big hole end, when the male joint and the female joint of adjacent drilling rod body are in the fit state, the aperture end of adjacent scum pipe inserts in the big hole end, after assembling adjacent drilling rod body, connect adjacent drilling rod body through the bolt subassembly, owing to be provided with the scum pipe, compressed gas in the high-pressure air flue strikes the bottom of the hole, dash the sediment in the bottom of the hole and arrange the sediment intraductal row sediment and arrange the sediment. Therefore, compared with the prior art, the embodiment of the utility model provides an anti-circulation drilling rod adopts the bolt subassembly to connect male joint and female joint, simple structure, and easy to operate can dismantle the drilling rod and change more conveniently, still is provided with the scum pipe in addition, sets up big hole end and aperture end at the both ends of scum pipe, and in the time of installing of drilling rod, the aperture end and the aperture end cooperation intercommunication of adjacent scum pipe carry out row sediment through the scum pipe, and drilling efficiency is higher.

The embodiment of the utility model provides a drilling tool that still provides, including foretell reverse circulation drilling rod, can realize above-mentioned technological effect equally.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural view of a reverse circulation drill pipe provided by an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective;

fig. 3 is a cross-sectional view of a reverse circulation drill pipe provided in an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a male connector according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a female joint provided in an embodiment of the present invention;

fig. 6 is a schematic structural diagram of two adjacent reverse circulation drill rods according to the embodiment of the present invention after being assembled;

FIG. 7 is an enlarged view of a portion of FIG. 6;

fig. 8 is a schematic structural diagram of a limiting element according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a positioning element according to an embodiment of the present invention.

Reference numerals: 1. a drill rod body; 2. a high pressure air passage; 3. a male connector; 4. a female joint; 5. a plug pin assembly; 6. a slag discharge pipe; 51. a first pin hole; 52. a second pin hole; 61. a small bore end; 62. a large bore end; 63. a first seal member; 71. installing a channel; 72. a first limit step; 73. a bump; 74. a positioning member; 75. a stopper; 741. a first positioning sleeve; 742. a second positioning sleeve; 81. a guide post; 82. mounting grooves; 83. a second seal member; 91. a mounting base; 92. an installation port; 93. a third seal.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly disposed on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the application and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be constructed in operation as a limitation of the application.

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 application, "plurality" or "a plurality" means two or more unless specifically limited otherwise.

It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the practical limit conditions of the present application, so that the modifications of the structures, the changes of the ratio relationships, or the adjustment of the sizes, are not essential to the technology, and the modifications, the changes of the ratio relationships, or the adjustment of the sizes, are all within the scope of the technical contents disclosed in the present application without affecting the efficacy and the achievable purpose of the present application.

The embodiment of the utility model provides an adopt progressive mode to write.

As shown in fig. 1 to 9, an embodiment of the present invention provides a reverse circulation drill rod, including: the drill rod comprises a drill rod body 1, wherein a high-pressure air passage 2 is arranged along the axial direction of the drill rod body 1; the male joint 3 and the female joint 4 are respectively arranged at two ends of the drill rod body 1, and the male joint 3 is connected with the female joint 4 through a bolt component; the slag discharging pipe 6 is arranged in the drill rod body 1 and along the axial direction of the drill rod body 1, and the slag discharging pipe 6 is provided with a small hole end 61 and a large hole end 62 which are matched with each other; when the male joint 3 and the female joint 4 of the adjacent drill rod bodies 1 are in a matched and communicated state, the small hole end 61 of the adjacent slag discharge pipe 6 is inserted into the large hole end 62.

In the prior art, adjacent drill rods are often connected through threads, but for large-sized drill rods, the structure is complex, the weight is large, and the drill rods are not convenient to detach through threaded connection. In addition, due to the fact that threaded connection is adopted, the two drill rods need to be in relative rotation movement through machinery, a slag discharging device is not arranged in each drill rod, and the risk of drill sticking is easily caused by residues in the bottom of a hole.

The utility model provides a reverse circulation drilling rod, at first because be provided with drilling rod body 1, high-pressure air flue 2, male joint 3, female joint 4 and bolt assembly, wherein, high-pressure air flue 2 sets up along drilling rod body 1's axis direction, male joint 3 and female joint 4 set up respectively at drilling rod body 1's both ends, and be connected through bolt assembly between male joint 3 and the female joint 4, when dismantling the drilling rod, only need remove bolt assembly can, compare with the threaded connection among the prior art, the structure is simpler, and dismantle and change the drilling rod more conveniently. Secondly, the drilling rod among the prior art adopts threaded connection, the drilling rod among the prior art does not be provided with the scum pipe 6 that is used for arranging the sediment, this application still is provided with scum pipe 6, a residue for the bottom of the hole, scum pipe 6 sets up in drilling rod body 1, and set up along the axis direction of drilling rod body 1, and the both ends of scum pipe 6 stretch out from drilling rod body 1, scum pipe 6 has aperture end 61 and big hole end 62, when male joint 3 and female joint 4 of adjacent drilling rod body 1 are in the fit state, aperture end 61 of adjacent scum pipe 6 inserts in big hole end 62, after assembling adjacent drilling rod body 1, connect adjacent drilling rod body 1 through the bolt subassembly, owing to be provided with scum pipe 6, the compressed gas in the high-pressure gas flue 2 strikes the bottom of the hole, the residue in the bottom of the hole is gone into in scum pipe 6 and is arranged the sediment. Therefore, compared with the prior art, the embodiment of the utility model provides an in reverse circulation drilling rod, adopt bolt subassembly to connect male joint 3 and female joint 4, simple structure, easy to operate can dismantle and change the drilling rod more conveniently, still be provided with scum pipe 6 in addition, set up macropore end 62 and aperture end 61 at scum pipe 6's both ends, when installing of drilling rod, the macropore end 62 and the aperture end 61 cooperation intercommunication of adjacent scum pipe 6, arrange sediment through scum pipe 6, drilling efficiency is higher.

In the structure, as one of them embodiment, the embodiment of the utility model provides an in sediment pipe 6 specifically be and drilling rod body 1 between fixed connection, however, arrange the sediment be in the compressed air in passageway high pressure air flue 2 enters into sediment pipe 6 with the residue blowback at the bottom of the hole, have looks mutual friction between the inner wall of sediment and sediment pipe 6 when arranging the sediment, cause sediment pipe 6 to damage easily, as another preferred embodiment, the embodiment of the utility model provides an in sediment pipe 6 and drilling rod body between can dismantle through coupling assembling and be connected, so, when the wearing and tearing of sediment pipe 6 appear, only need to change sediment pipe 6 can, in addition, sediment pipe 6 low price, and drilling rod body 1's cost is higher, through changing the life that sediment pipe 6 extension drilling rod body 1.

In the above structure, as one of them specific implementation mode, the utility model discloses a coupling assembling includes installation channel 71, wherein, installation channel 71 sets up in drilling rod body 1, be provided with first spacing step 72 on the inner wall of installation channel 71, the aperture end 61 of scum pipe 6 is provided with the lug 73 that uses with first spacing step 72 cooperation, when installing scum pipe 6, insert the aperture end 61 of scum pipe 6 in installation channel 71 until lug 73 and first spacing step 72 butt, the displacement of aperture end 61 along the axis direction of spacing restraint scum pipe 6, for the displacement of the big aperture end 62 along the axis direction of spacing restraint scum pipe 6, the utility model discloses an embodiment's big aperture end 62's of scum pipe 6 outside still is equipped with setting element 74, the limiting element 75 sets up the one end of keeping away from first spacing step 72 at installation channel 71, and can dismantle with being connected between drilling rod body 1, the one end and the limiting element 75 butt of first spacing step 72 are kept away from to setting element 74, under initial condition, on locating element 75 is not installed on drilling rod body 1, when the scum pipe 6 inserts the aperture end of spacing block 61 and install the spacing element 75 in the drill rod body, install the cooperation of locating element 71, the spacing element 71 with the setting element 71, use.

In the above-mentioned structure, as one of them specific implementation mode, this use locating part 75 in the novel embodiment specifically for being equipped with the open-ended jump ring, be provided with the mounting ring groove that is used for installing the jump ring on the inner wall of installation channel 71, the jump ring is when installing, and the outer circumferential surface of jump ring is installed in the mounting ring groove, carries out spacing restraint to setting element 74 through the jump ring, and the structure of jump ring is less, and it is more convenient to install. When the slag discharging pipe 6 needs to be disassembled, the clamp spring is removed from the mounting ring groove, and the slag discharging pipe 6 can be drawn out.

In the above-mentioned structure, as one of them embodiment, the utility model discloses a setting element 74 in the embodiment can be for the fixed dog or the step that sets up at the outer wall of scum pipe 6, as a more preferred embodiment, the utility model discloses a setting element 74 includes first position sleeve 741 and second position sleeve 742, first position sleeve 741 and second position sleeve 742 are split type structure, be provided with the axle journal that is used for fixing a position the axis of setting element 74 on the scum pipe 6, be provided with the cambered surface with the axle journal adaptation between first position sleeve 741 and the second position sleeve 742, block first position sleeve 741 and second position sleeve 742 on the axle journal, push installation channel 71, at last with clamping the jump ring in the installation annular groove, can accomplish the installation of scum pipe 6, when needs are demolishd scum pipe 6, demolish the jump ring earlier, take scum pipe 6 from the macropore end 62 of scum pipe 6, remove first position sleeve 741 and second position sleeve 742, can all take scum pipe 6 out.

In the above-mentioned structure, in order to prevent that slag discharging pipe 6 from leaking the sediment, as a more preferred embodiment, the utility model discloses the aperture end 61 of slag discharging pipe 6 in the embodiment is provided with first sealing member 63, and the aperture end 61 and the big aperture end 62 cooperation intercommunication of adjacent slag discharging pipe 6 to it is sealed to carry out the junction to aperture end 61 and big aperture end 62 through first sealing member 63, prevents that the sediment from producing from the junction of aperture end 61 and big aperture end 62 and reveals. As one of them embodiment, the embodiment of the present invention provides at least two sets of first sealing members 63, and the first sealing members 63 are disposed on the outer circular axial surface of the small hole end 61, and the first sealing members 63 are disposed along the axial direction of the slag discharging pipe 6 at intervals, so that the sealing effect between the small hole end 61 and the large hole end 62 of the slag discharging pipe 6 is better by disposing at least two sets of first sealing members 63.

In the above structure, as one of them embodiment, the bolt subassembly in the embodiment of the utility model provides an including first bolt hole 51, second bolt hole 52 and round pin axle, wherein, first bolt hole 51 sets up on male joint 3, and second bolt hole 52 sets up on female joint 4, and second bolt hole 52 uses with first bolt hole 51 cooperation, and when the male joint 3 of adjacent drill bit body was in the cooperation intercommunication state with female joint 4, the round pin axle can insert in second bolt hole 52 and the first bolt hole 51, fixes male joint 3 and female joint 4.

In the structure, the embodiment of the utility model provides an in the bolt subassembly be provided with two sets ofly at least, and the bolt subassembly sets up along the axis direction interval of drilling rod body 1, through setting up multiunit bolt subassembly, can strengthen being connected between male joint 3 and the female joint 4, through setting up the bolt subassembly along the axis direction interval of drilling rod body 1, further increase the joint strength between male joint 3 and the female joint 4.

In the above structure, as a more preferable embodiment, in order to avoid the interference phenomenon between the first pin hole 51, the second pin hole 52 and the slag discharging pipe 6, the first pin hole 51 and the slag discharging pipe 6 in the embodiment of the present invention are arranged in a staggered manner, so as to prevent the first pin hole 51 and the second pin hole 52 from passing through the slag discharging pipe 6, and thus the slag leakage of the drill rod is avoided.

In the above structure, as one of the embodiments, the reverse circulation drill rod in the embodiment of the present invention further includes a guide column 81, a mounting groove 82, and a second sealing member 83, wherein the guide column 81 is disposed at one end of the male joint 3 away from the drill rod body 1, the mounting groove 82 used in cooperation with the guide column 81 is disposed in the female joint 4, and the second sealing member 83 is disposed on an outer surface of the guide column 81. By arranging the second sealing member 83, air leakage is avoided when the male joint 3 and the female joint 4 of adjacent drill rods are in matched communication.

In the above structure, in order to further guarantee the sealing effect, as one of them embodiment, the utility model discloses reverse circulation drilling rod in the embodiment of the invention still includes mount pad 91, installing port 92 and third sealing member 93, wherein, mount pad 91 sets up the junction at male joint 3 and drilling rod body 1, and installing port 92 sets up on female joint 4, and the external diameter adaptation of installing port 92 and mount pad 91 is provided with third sealing member 93 at the internal surface of installing port 92, can not leak gas when guaranteeing male joint 3 and the female joint 4 cooperation intercommunication of adjacent drilling rod.

In the above structure, as one embodiment, the first seal member 63, the second seal member 83, and the third seal member 93 in the embodiment of the present invention are all seal rings.

In the above-mentioned structure, as a more specific implementation mode, the embodiment of the present invention provides a connector specifically being a polygonal connector, further, the embodiment of the present invention provides a male connector 3 specifically being a male hexagonal connector, and a female connector 4 specifically being a female hexagonal connector.

The utility model also provides a drilling tool, including the reverse circulation drilling rod of above-mentioned arbitrary one, also can reach simple structure, easy to operate can dismantle the technical effect of changing to the drilling rod more conveniently.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A reverse circulation drill rod, comprising:

the drill rod comprises a drill rod body (1), wherein a high-pressure air passage (2) is arranged along the axial direction of the drill rod body (1);

the drill rod comprises a male joint (3) and a female joint (4) which are respectively arranged at two ends of the drill rod body (1), wherein the male joint (3) is connected with the female joint (4) through a bolt component;

the slag discharge pipe (6) is arranged in the drill rod body (1) and along the axial direction of the drill rod body (1), and the slag discharge pipe (6) is provided with a small hole end (61) and a large hole end (62) which are matched with each other;

when the male joint (3) and the female joint (4) of the adjacent drill rod body (1) are in a matched and communicated state, the small hole end (61) of the adjacent slag discharge pipe (6) is inserted into the large hole end (62).

2. Reverse circulation drill pipe according to claim 1,

the slag discharge pipe (6) and the drill rod body (1) are detachably connected through a connecting assembly.

3. The reverse circulation drill rod of claim 2,

the coupling assembly, includes:

the drill rod comprises a drill rod body (1), and is characterized in that an installation channel (71) is arranged in the drill rod body (1), a first limiting step (72) is arranged on the inner wall of the installation channel (71), and a convex block (73) matched with the first limiting step (72) is arranged at the small hole end of the slag discharge pipe (6);

the positioning piece (74) is sleeved at the large hole end (62) of the slag discharge pipe (6);

the limiting piece (75) is arranged at one end, far away from the first limiting step (72), of the installation channel (71) and detachably connected with the drill rod body (1), and one end, far away from the first limiting step (72), of the positioning piece (74) is abutted to the limiting piece (75).

4. The reverse circulation drill rod of claim 3,

the limiting piece (75) is specifically a snap spring with an opening, and an installation ring groove for installing the snap spring is formed in the inner wall of the installation channel (71).

5. Reverse circulation drill pipe according to claim 4,

the positioning piece (74) comprises a first positioning sleeve (741) and a second positioning sleeve (742);

an arc surface matched with a shaft neck of the slag discharge pipe (6) is arranged between the first positioning sleeve (741) and the second positioning sleeve (742).

6. Reverse circulation drill rod according to any one of claims 1 to 5,

the bolt subassembly includes:

a first plug hole (51) provided on the male connector (3);

a second pin hole (52) which is arranged on the female joint (4) and is matched with the first pin hole (51);

when the male joint (3) and the female joint (4) of the adjacent drill rod bodies (1) are in a matched and communicated state, the pin shaft can be inserted into the second pin hole (52) and the first pin hole (51) to fix the adjacent drill rod bodies (1).

7. The reverse circulation drill rod of claim 6,

the bolt components are at least provided with two groups and are arranged at intervals along the axial direction of the drill rod body (1).

8. Reverse circulation drill rod according to any one of claims 1, 2, 3, 4, 5, 7,

further comprising:

the guide column (81) is arranged at one end, far away from the drill rod body (1), of the male joint (3);

the mounting groove (82) is arranged in the female joint (4) and is matched with the guide column (81) for use;

and a second sealing element (83) is arranged on the outer surface of the guide post (81).

9. The reverse circulation drill rod of claim 8,

further comprising:

the mounting seat (91) is arranged at the joint of the male joint (3) and the drill rod body (1);

the mounting opening (92) is arranged on the female joint (4) and is matched with the outer diameter of the mounting seat (91);

the inner surface of the mounting opening (92) is provided with a third seal member (93).

10. A drilling tool comprising a reverse circulation drill rod as claimed in any one of claims 1 to 9.

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