CN216631754U - Auxiliary device for checking screw thread of drill rod - Google Patents
Auxiliary device for checking screw thread of drill rod Download PDFInfo
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- CN216631754U CN216631754U CN202220153091.2U CN202220153091U CN216631754U CN 216631754 U CN216631754 U CN 216631754U CN 202220153091 U CN202220153091 U CN 202220153091U CN 216631754 U CN216631754 U CN 216631754U
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Abstract
The utility model discloses a drill rod screw thread inspection auxiliary device, which relates to the technical field of oilfield drilling auxiliary equipment and comprises a plug body and a piston rod, wherein the plug body is an inverted frustum-shaped component with a hollow inner cavity, the taper of the plug body is matched with the inner taper of a female buckle end of a drill rod, a suction pipe communicated with the inner cavity is arranged on the lower end surface of the plug body, and a hollow holding rod is fixedly connected to an opening at the upper end of the inner cavity; the piston rod is arranged in the holding rod in a vertically sliding manner, the lower end of the piston rod is provided with a piston, and the upper end of the piston rod is provided with a pull ring; the piston is arranged in the inner cavity of the plug body in an axial sliding and sealing manner, and the lower end surface of the holding rod provides limit for the up-and-down sliding of the piston; this device simple structure, the practicality is strong, only needs to put into the female knot end of drilling rod with it during the use, just can easily realize replacing of mud removing, then can further discharge partial mud through the suction, has promoted work efficiency effectively.
Description
Technical Field
The utility model relates to the technical field of oilfield drilling auxiliary equipment, in particular to a drill rod screw thread inspection auxiliary device.
Background
In the oil field well drilling production process, the drilling tool is connected and the drilling tool is tripped out and down are indispensable procedures, in the procedures, the thread of the drilling tool needs to be checked, thread sealing grease needs to be smeared, but the female buckle end is often filled with slurry, which brings inconvenience to the work of checking the thread, the step and smearing the thread sealing grease, the traditional method is that a mop head is used for stirring in the female buckle end of a drilling rod or mineral water bottles are used for containing the slurry, and the defects of backward technology and low working efficiency exist.
Chinese patent CN202169262U discloses a pneumatic drill rod screw thread cleaning device, which has the technical scheme that: the oil supply part comprises an oil suction pipe, an oil pump, an oil injection pipe and the like, wherein the oil suction pipe is arranged on an oil suction port of the oil pump, and the oil injection pipe is arranged on an oil outlet of the oil pump; the cleaning part comprises a frame, a steel wire brush, a rotating body, a protective cover, a transmission shaft, a cam, a bearing and the like, wherein an oil pump is fixed on the frame, the transmission shaft is fixed in a seat hole of the frame through the bearing, the rotating body is fixed on the frame, the rotating body is fixedly connected with the transmission shaft, the cam is fixed on the transmission shaft, the protective cover is fixed on the outer side of the cam, and the steel wire brush is fixed on the rotating body; this belt cleaning device can't rely on self structure to replace the mud of removing the box end, and its structure is complicated, is applied to the cleaning process who replaces behind the mud.
Under the background, it is imperative to design and process a drill rod thread inspection auxiliary device.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an auxiliary device for checking a screw thread of a drill rod aiming at the defects in the prior art.
The technical scheme of the utility model is as follows: the auxiliary device for checking the screw thread of the drill rod comprises a plug body and a piston rod, wherein the plug body is an inverted frustum-shaped component with a hollow inner cavity, the taper of the inverted frustum-shaped component is matched with the inner taper of a female buckle end of the drill rod, a suction pipe communicated with the inner cavity is arranged on the lower end face of the inverted frustum-shaped component, and a hollow holding rod is fixedly connected to an opening at the upper end of the inner cavity; the piston rod is arranged in the holding rod in a vertically sliding manner, the lower end of the piston rod is provided with a piston, and the upper end of the piston rod is provided with a pull ring; the piston is arranged in the inner cavity of the plug body in an axial sliding sealing mode, and the lower end face of the holding rod provides limiting for the up-and-down sliding of the piston.
Preferably, the outer wall of the lower portion of the plug body is provided with an outer step seat matched with the inner step seat at the female buckle end of the drill rod, the plug body at the lower portion of the outer step seat is in a round rod shape, and the outer diameter of the plug body is slightly smaller than the inner diameter of the drill rod.
Preferably, the maximum outer diameter of the plug body is 125mm, and the outer diameter of the plug body at the lower part of the outer step seat is 75 mm.
Preferably, the plug further comprises an annular positioning plate, the positioning plate is sleeved on the outer side of the holding rod and is coaxially arranged with the holding rod, and the positioning plate is fixedly connected with the upper end of the plug body through a plurality of connecting rods; the inner diameter of the positioning plate is larger than the outer diameter of the holding rod, and the outer diameter of the positioning plate is larger than the outer diameter of the female buckle end of the drill rod; when the positioning plate is contacted with the drill rod female buckle end, the plug body outer step seat is abutted against the drill rod female buckle end inner step seat.
Preferably, the four connecting rods are arranged in a circumferential array by taking the holding rod as an axis.
Preferably, the outer side of the connecting rod and the outer wall of the plug body at the upper part of the outer step seat are respectively provided with a brush for cleaning the inner wall of the female buckle end of the drill rod, and the brushes are attached to the inner wall of the female buckle end of the drill rod.
Preferably, the plug body is made of wood materials or resin materials, and the piston is made of rubber materials.
Preferably, a plurality of suction pipes are arranged on the lower end face of the plug body and are uniformly arranged.
Compared with the prior art, the utility model has the following advantages:
(1) the device is simple in structure and strong in practicability, when in use, the mud can be easily replaced by only placing the device into the female buckle end of the drill rod, and then partial mud can be further discharged by pumping, so that the working efficiency is effectively improved;
(2) the device can be used for quickly removing mud in the female buckle end of the drill rod, and is convenient for checking the threads of the drilling tool, the inner step seat and the development of the work of coating thread sealing grease;
(3) the positioning plate is fixedly arranged above the plug body of the device, and is supported at the upper end of the female buckle end of the drill rod during pumping operation, and then the piston rod is drawn for pumping, so that the stability of the device during slurry pumping operation is further improved by the positioning plate, and the device is more convenient to operate;
(4) the brush that is used for clearing up the female knot of drilling rod end inner wall all is equipped with on the cock body outer wall on the outside of this device connecting rod and outer step seat upper portion, and the brush can tentatively clear up the internal thread of the female knot end of drilling rod, is convenient for follow-up detect the drilling tool screw thread.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic cross-sectional view of FIG. 1;
fig. 3 is a schematic view of the usage state of the present invention.
In the figure: 1. the device comprises a plug body, 101, an inner cavity, 102, an outer step seat, 2, a piston rod, 3, a suction pipe, 4, a holding rod, 5, a piston, 6, a pull ring, 7, a positioning plate, 8, a connecting rod, 9 and a brush.
Detailed Description
The utility model is further illustrated below with reference to the figures and examples.
Example one
Referring to fig. 1-2, the drill rod thread checking auxiliary device comprises a plug body 1 and a piston rod 2, wherein the plug body 1 is an inverted circular truncated cone-shaped component with a hollow inner cavity 101, the taper of the plug body is matched with the inner taper of a female buckle end of a drill rod, a suction pipe 3 communicated with the inner cavity 101 is arranged on the lower end face of the plug body, and a hollow holding rod 4 is fixedly connected to an opening at the upper end of the inner cavity 101; the piston rod 2 is arranged in the holding rod 4 in a vertically sliding manner, the lower end of the piston rod is provided with a piston 5, and the upper end of the piston rod is provided with a pull ring 6; the piston 5 is arranged in the inner cavity 101 of the plug body 1 in an axial sliding sealing mode, and the lower end face of the holding rod 4 provides limiting for the up-and-down sliding of the piston 5.
Referring to fig. 2, the piston 5 in the initial device is positioned at the lowest end of the inner cavity 101 of the plug body 1; when the device is used, the device is placed at the female buckle end of a drill rod, and partial slurry in the female buckle end can be easily removed under the extrusion of the plug body 1; then the operator presses the holding rod 4 downwards and pulls the piston rod 2 upwards through the pull ring 6, and partial mud at the bottom of the plug body 1 is pumped into the inner cavity 101 of the plug body 1 through the suction pipe 3 (shown in figure 3); then the device is taken down, and the slurry in the inner cavity 101 of the plug body 1 is discharged; and finally, visually checking the threads and the inner step seat of the drilling tool, and smearing thread sealing grease after cleaning.
The device is simple in structure and strong in practicability, when in use, the mud can be easily replaced by only placing the device into the female buckle end of the drill rod, and then partial mud can be further discharged by pumping, so that the working efficiency is effectively improved; the device can be used for quickly removing mud in the female buckle end of the drill rod, and is convenient for checking the threads of the drilling tool, the inner step seat and the development of the work of coating thread sealing grease.
Example two
Referring to fig. 1-2, the drill rod thread checking auxiliary device comprises a plug body 1 and a piston rod 2, wherein the plug body 1 is an inverted circular truncated cone-shaped component with a hollow inner cavity 101, the taper of the plug body is matched with the inner taper of a female buckle end of a drill rod, a suction pipe 3 communicated with the inner cavity 101 is arranged on the lower end face of the plug body, and a hollow holding rod 4 is fixedly connected to an opening at the upper end of the inner cavity 101; the piston rod 2 is arranged in the holding rod 4 in a vertically sliding manner, the lower end of the piston rod is provided with a piston 5, and the upper end of the piston rod is provided with a pull ring 6; the piston 5 is arranged in the inner cavity 101 of the plug body 1 in an axial sliding sealing mode, and the lower end face of the holding rod 4 provides limiting for the up-and-down sliding of the piston 5.
In addition, the difference between the present embodiment and the first embodiment is that an outer step seat 102 is disposed on an outer wall of the plug body 1, specifically:
in this embodiment, an outer step seat 102 adapted to the inner step seat at the female buckle end of the drill rod is disposed on the outer wall of the lower portion of the plug body 1, and the plug body 1 at the lower portion of the outer step seat 102 is a round rod, and the outer diameter thereof is slightly smaller than the inner diameter of the drill rod.
More specifically, the maximum outer diameter of the plug body 1 is 125mm, and the outer diameter of the plug body 1 at the lower portion of the outer step seat 102 is 75 mm.
During the use, put into the box end of drilling rod with this device, cock body 1 outer step seat 102 and the contact of the interior step seat of drilling rod box end, cock body 1 of outer step seat 102 lower part enters into drilling rod inner chamber 101, and this setting can replace more mud fast and remove, has further promoted work efficiency.
EXAMPLE III
Referring to fig. 1-2, the drill rod thread checking auxiliary device comprises a plug body 1 and a piston rod 2, wherein the plug body 1 is an inverted circular truncated cone-shaped component with a hollow inner cavity 101, the taper of the plug body is matched with the inner taper of a female buckle end of a drill rod, a suction pipe 3 communicated with the inner cavity 101 is arranged on the lower end face of the plug body, and a hollow holding rod 4 is fixedly connected to an opening at the upper end of the inner cavity 101; the piston rod 2 is arranged in the holding rod 4 in a vertically sliding manner, the lower end of the piston rod is provided with a piston 5, and the upper end of the piston rod is provided with a pull ring 6; the piston 5 is arranged in the inner cavity 101 of the plug body 1 in an axial sliding sealing mode, and the lower end face of the holding rod 4 provides limiting for the up-and-down sliding of the piston 5.
In addition, the outer wall of the lower part of the plug body 1 is provided with an outer step seat 102 matched with the inner step seat at the female buckle end of the drill rod, and the plug body 1 at the lower part of the outer step seat 102 is in a round rod shape, and the outer diameter of the plug body is slightly smaller than the inner diameter of the drill rod.
The maximum outer diameter of the plug body 1 is 125mm, and the outer diameter of the plug body 1 at the lower part of the outer step seat 102 is 75 mm.
In addition, in this embodiment, on the basis of the second embodiment, the positioning plate 7 is additionally arranged above the plug body 1, specifically:
the plug also comprises an annular positioning plate 7, wherein the positioning plate 7 is sleeved on the outer side of the holding rod 4, is coaxially arranged with the holding rod 4 and is fixedly connected with the upper end of the plug body 1 through four connecting rods 8; the inner diameter of the positioning plate 7 is larger than the outer diameter of the holding rod 4, and the outer diameter of the positioning plate is larger than the outer diameter of the female buckle end of the drill rod; when the positioning plate 7 contacts with the upper end of the drill rod female buckle end, the outer stepped seat 102 of the plug body 1 abuts against the inner stepped seat of the drill rod female buckle end.
In more detail, the four connecting rods 8 are arranged in a circumferential array with the holding rod 4 as an axis.
In use, mud squeezed by the plug body 1 can flow between the connecting rods 8; when carrying out the suction operation, support locating plate 7 in the upper end of the female knot end of drilling rod, then the suction is carried out to pull piston rod 2, and the stability of device when this setting has further promoted mud suction operation, the operation of being more convenient for.
Example four
Referring to fig. 1-2, the drill rod thread checking auxiliary device comprises a plug body 1 and a piston rod 2, wherein the plug body 1 is an inverted circular truncated cone-shaped component with a hollow inner cavity 101, the taper of the plug body is matched with the inner taper of a female buckle end of a drill rod, a suction pipe 3 communicated with the inner cavity 101 is arranged on the lower end face of the plug body, and a hollow holding rod 4 is fixedly connected to an opening at the upper end of the inner cavity 101; the piston rod 2 is arranged in the holding rod 4 in a vertically sliding manner, the lower end of the piston rod is provided with a piston 5, and the upper end of the piston rod is provided with a pull ring 6; the piston 5 is arranged in the inner cavity 101 of the plug body 1 in an axial sliding sealing mode, and the lower end face of the holding rod 4 provides limiting for the up-and-down sliding of the piston 5.
In addition, the outer wall of the lower part of the plug body 1 is provided with an outer step seat 102 matched with the inner step seat at the female buckle end of the drill rod, and the plug body 1 at the lower part of the outer step seat 102 is in a round rod shape, and the outer diameter of the plug body is slightly smaller than the inner diameter of the drill rod.
The maximum outer diameter of the plug body 1 is 125mm, and the outer diameter of the plug body 1 at the lower part of the outer step seat 102 is 75 mm.
The device also comprises an annular positioning plate 7, wherein the positioning plate 7 is sleeved on the outer side of the holding rod 4, is coaxially arranged with the holding rod 4 and is fixedly connected with the upper end of the plug body 1 through four connecting rods 8; the inner diameter of the positioning plate 7 is larger than the outer diameter of the holding rod 4, and the outer diameter of the positioning plate is larger than the outer diameter of the female buckle end of the drill rod; when the positioning plate 7 contacts with the upper end of the drill rod female buckle end, the outer stepped seat 102 of the plug body 1 abuts against the inner stepped seat of the drill rod female buckle end.
In more detail, the four connecting rods 8 are arranged in a circumferential array with the holding rod 4 as an axis.
In addition, in this embodiment, on the basis of the third embodiment, a brush 9 is additionally arranged on the outer wall of the plug body 1, specifically:
in this embodiment, the outer side of the connecting rod 8 and the outer wall of the plug body 1 on the upper part of the outer step seat 102 are both provided with a brush 9 for cleaning the inner wall of the female buckle end of the drill rod, and the brush 9 is attached to the inner wall of the female buckle end of the drill rod.
After the pumping operation is completed, the positioning plate 7 is manually rotated to enable the outer side of the connecting rod 8 and the inner thread of the female buckle end of the drill rod to be preliminarily cleaned through the brush 9 on the outer wall of the plug body 1 on the upper portion of the outer step seat 102, and the arrangement is convenient for subsequent detection of the thread of the drilling tool.
EXAMPLE five
Referring to fig. 1-2, the drill rod thread checking auxiliary device comprises a plug body 1 and a piston rod 2, wherein the plug body 1 is an inverted circular truncated cone-shaped component with a hollow inner cavity 101, the taper of the plug body is matched with the inner taper of a female buckle end of a drill rod, a suction pipe 3 communicated with the inner cavity 101 is arranged on the lower end face of the plug body, and a hollow holding rod 4 is fixedly connected to an opening at the upper end of the inner cavity 101; the piston rod 2 is arranged in the holding rod 4 in a vertically sliding manner, the lower end of the piston rod is provided with a piston 5, and the upper end of the piston rod is provided with a pull ring 6; the piston 5 is arranged in the inner cavity 101 of the plug body 1 in an axial sliding sealing mode, and the lower end face of the holding rod 4 provides limiting for the up-and-down sliding of the piston 5.
In addition, the outer wall of the lower part of the plug body 1 is provided with an outer step seat 102 matched with the inner step seat at the female buckle end of the drill rod, and the plug body 1 at the lower part of the outer step seat 102 is in a round rod shape, and the outer diameter of the plug body is slightly smaller than the inner diameter of the drill rod.
The maximum outer diameter of the plug body 1 is 125mm, and the outer diameter of the plug body 1 at the lower part of the outer step seat 102 is 75 mm.
The device also comprises an annular positioning plate 7, wherein the positioning plate 7 is sleeved on the outer side of the holding rod 4, is coaxial with the holding rod 4 and is fixedly connected with the upper end of the plug body 1 through four connecting rods 8; the inner diameter of the positioning plate 7 is larger than the outer diameter of the holding rod 4, and the outer diameter of the positioning plate is larger than the outer diameter of the female buckle end of the drill rod; when the positioning plate 7 contacts with the upper end of the drill rod female buckle end, the outer stepped seat 102 of the plug body 1 abuts against the inner stepped seat of the drill rod female buckle end.
In more detail, the four connecting rods 8 are arranged in a circumferential array with the holding rod 4 as an axis.
The outer side of the connecting rod 8 and the outer wall of the plug body 1 at the upper part of the outer step seat 102 are both provided with a brush 9 for cleaning the inner wall of the female buckle end of the drill rod, and the brush 9 is attached to the inner wall of the female buckle end of the drill rod.
In addition, in this embodiment, the material of each component of the present apparatus is limited based on the fourth embodiment, and specifically, the material includes:
in this embodiment, the plug body 1 is made of wood or resin, and the piston 5 is made of rubber.
EXAMPLE six
Referring to fig. 1-2, the drill rod thread checking auxiliary device comprises a plug body 1 and a piston rod 2, wherein the plug body 1 is an inverted circular truncated cone-shaped component with a hollow inner cavity 101, the taper of the plug body is matched with the inner taper of a female buckle end of a drill rod, a suction pipe 3 communicated with the inner cavity 101 is arranged on the lower end face of the plug body, and a hollow holding rod 4 is fixedly connected to an opening at the upper end of the inner cavity 101; the piston rod 2 is arranged in the holding rod 4 in a vertically sliding manner, the lower end of the piston rod is provided with a piston 5, and the upper end of the piston rod is provided with a pull ring 6; the piston 5 is arranged in the inner cavity 101 of the cock body 1 in an axial sliding and sealing manner, and the lower end surface of the holding rod 4 provides limit for the up-and-down sliding of the piston 5.
In addition, the outer wall of the lower part of the plug body 1 is provided with an outer step seat 102 matched with the inner step seat at the female buckle end of the drill rod, and the plug body 1 at the lower part of the outer step seat 102 is in a round rod shape, and the outer diameter of the plug body is slightly smaller than the inner diameter of the drill rod.
The maximum outer diameter of the plug body 1 is 125mm, and the outer diameter of the plug body 1 at the lower part of the outer step seat 102 is 75 mm.
The device also comprises an annular positioning plate 7, wherein the positioning plate 7 is sleeved on the outer side of the holding rod 4, is coaxially arranged with the holding rod 4 and is fixedly connected with the upper end of the plug body 1 through four connecting rods 8; the inner diameter of the positioning plate 7 is larger than the outer diameter of the holding rod 4, and the outer diameter of the positioning plate is larger than the outer diameter of the female buckle end of the drill rod; when the positioning plate 7 contacts with the upper end of the drill rod female buckle end, the outer stepped seat 102 of the plug body 1 abuts against the inner stepped seat of the drill rod female buckle end.
In more detail, the four connecting rods 8 are arranged in a circumferential array with the holding rod 4 as an axis.
The outer side of the connecting rod 8 and the outer wall of the plug body 1 at the upper part of the outer step seat 102 are both provided with a brush 9 for cleaning the inner wall of the female buckle end of the drill rod, and the brush 9 is attached to the inner wall of the female buckle end of the drill rod.
In addition, in order to improve the pumping efficiency of the device to mud, the present embodiment optimizes the setting of the pumping tube 3 on the basis of the fourth embodiment, specifically:
in the present embodiment, a plurality of suction pipes 3 are provided on the lower end surface of the plug body 1, and the plurality of suction pipes 3 are uniformly arranged.
The present invention is not limited to the above-described embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention, and the contents of the changes still fall within the scope of the present invention.
Claims (8)
1. The utility model provides a drilling rod screw thread inspection auxiliary device, includes the cock body, its characterized in that: the plug body is an inverted circular truncated cone-shaped component with a hollow inner cavity, the taper of the plug body is matched with the inner taper of the female buckle end of the drill rod, the lower end face of the plug body is provided with a suction pipe communicated with the inner cavity, and the opening at the upper end of the inner cavity is fixedly connected with a hollow holding rod; the piston rod is arranged in the holding rod in a vertically sliding manner, the lower end of the piston rod is provided with a piston, and the upper end of the piston rod is provided with a pull ring; the piston is arranged in the inner cavity of the plug body in an axial sliding sealing mode, and the lower end face of the holding rod provides limiting for the up-and-down sliding of the piston.
2. The drill rod threading inspection aid of claim 1, wherein: the outer wall of the lower portion of the plug body is provided with an outer step seat matched with the inner step seat at the female buckle end of the drill rod, the plug body at the lower portion of the outer step seat is in a round rod shape, and the outer diameter of the plug body is slightly smaller than the inner diameter of the drill rod.
3. The drill rod threading inspection aid of claim 2, wherein: the largest outer diameter of the plug body is 125mm, and the outer diameter of the plug body at the lower part of the outer step seat is 75 mm.
4. The drill rod threading inspection aid of claim 2, wherein: the plug body is characterized by also comprising an annular positioning plate, wherein the positioning plate is sleeved on the outer side of the holding rod, is coaxial with the holding rod and is fixedly connected with the upper end of the plug body through a plurality of connecting rods; the inner diameter of the positioning plate is larger than the outer diameter of the holding rod, and the outer diameter of the positioning plate is larger than the outer diameter of the female buckle end of the drill rod; when the positioning plate is contacted with the drill rod female buckle end, the plug body outer step seat is abutted against the drill rod female buckle end inner step seat.
5. The drill rod threading inspection aid of claim 4, wherein: the four connecting rods are arranged in a circumferential array by taking the holding rod as an axis.
6. The drill rod threading inspection auxiliary device according to claim 5, wherein: the outer side of the connecting rod and the outer wall of the plug body on the upper portion of the outer step seat are respectively provided with a brush used for cleaning the inner wall of the female buckle end of the drill rod, and the brushes are attached to the inner wall of the female buckle end of the drill rod.
7. The drill rod threading inspection aid of claim 1, wherein: the plug body is made of wood materials or resin materials, and the piston is made of rubber materials.
8. The drill rod threading inspection auxiliary device according to claim 1, wherein: and a plurality of suction pipes are arranged on the lower end surface of the plug body and are uniformly arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220153091.2U CN216631754U (en) | 2022-01-20 | 2022-01-20 | Auxiliary device for checking screw thread of drill rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220153091.2U CN216631754U (en) | 2022-01-20 | 2022-01-20 | Auxiliary device for checking screw thread of drill rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216631754U true CN216631754U (en) | 2022-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220153091.2U Active CN216631754U (en) | 2022-01-20 | 2022-01-20 | Auxiliary device for checking screw thread of drill rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216631754U (en) |
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2022
- 2022-01-20 CN CN202220153091.2U patent/CN216631754U/en active Active
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