CN217289631U - Pipe thread cleaning device - Google Patents
Pipe thread cleaning device Download PDFInfo
- Publication number
- CN217289631U CN217289631U CN202221013585.7U CN202221013585U CN217289631U CN 217289631 U CN217289631 U CN 217289631U CN 202221013585 U CN202221013585 U CN 202221013585U CN 217289631 U CN217289631 U CN 217289631U
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- Prior art keywords
- liquid
- pipe
- cleaning
- collecting cover
- spraying ring
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- 238000004140 cleaning Methods 0.000 title claims abstract description 113
- 239000007788 liquid Substances 0.000 claims abstract description 328
- 238000005507 spraying Methods 0.000 claims abstract description 64
- 238000005086 pumping Methods 0.000 claims abstract description 12
- 239000007921 spray Substances 0.000 claims description 52
- 239000002699 waste material Substances 0.000 claims description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000011012 sanitization Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 6
- 239000004519 grease Substances 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The utility model discloses a pipe thread cleaning device, which comprises a liquid supply device and an external cleaning device used for cleaning external threads on pipes, wherein the external cleaning device comprises a first liquid collecting cover and a liquid spraying ring; the liquid supply device is connected with the liquid spraying ring and is used for pumping cleaning liquid into the liquid spraying ring; the liquid spraying ring is used for being sleeved on the outer side of the external thread when the external thread is cleaned, and at least one first nozzle used for spraying liquid to the external thread is arranged in the liquid spraying ring; the first liquid collecting cover is connected with the liquid spraying ring and covers the outer side of the liquid spraying ring, and the first liquid collecting cover is used for collecting cleaning liquid sprayed out from the first nozzle. The utility model discloses can reduce workman intensity of labour with the screw thread sanitization, improve the cleaning efficiency, improve the cleaning performance.
Description
Technical Field
The utility model relates to a tubular product screw thread belt cleaning device.
Background
At present, oil field material storehouses and well teams need to clean thread grease on threads in oil casings after the oil casings are placed in the storehouses and before the oil casings are placed in a well. At present, the threads are manually scrubbed mainly through a brush manually, the whole cleaning process consumes time and labor, the cleaning efficiency is low, bristles can be remained on the threads of the oil sleeve by using the brush for cleaning, and the cleaning effect is poor.
Disclosure of Invention
The utility model aims to solve the technical problem that overcome prior art's defect, provide a tubular product screw thread belt cleaning device, it can reduce workman intensity of labour with the screw thread sanitization, improves the cleaning efficiency, improves the cleaning performance.
In order to solve the technical problem, the technical scheme of the utility model is that: a pipe thread cleaning device comprises a liquid supply device and an outer cleaning device used for cleaning external threads on a pipe, wherein the outer cleaning device comprises a first liquid collecting cover and a liquid spraying ring; wherein,
the liquid supply device is connected with the liquid spraying ring and is used for pumping cleaning liquid into the liquid spraying ring;
the liquid spraying ring is used for being sleeved on the outer side of the external thread when the external thread is cleaned, and at least one first nozzle used for spraying liquid to the external thread is arranged in the liquid spraying ring;
the first liquid collecting cover is connected with the liquid spraying ring and covers the outer side of the liquid spraying ring, and the first liquid collecting cover is used for collecting cleaning liquid sprayed out from the first nozzle.
Further providing a specific connection structure between the liquid spray ring and the first liquid collection cover, wherein the liquid spray ring is connected with the first liquid collection cover through at least two connecting rods;
one end part of the connecting rod is connected with the liquid spraying ring;
the other end of the connecting rod is connected to the inner wall of the first liquid collecting cover;
at least two connecting rods are arranged and distributed in sequence along the circumferential direction of the liquid spraying ring.
Further provides a concrete structure of the liquid supply device, the liquid supply device comprises a first liquid supply assembly which is connected with the liquid spray ring and is used for pumping cleaning liquid into the liquid spray ring;
the first liquid supply assembly comprises a first liquid storage tank, a first liquid supply pump and a liquid distribution pipe;
the first liquid storage tank stores cleaning liquid;
the outlet of the liquid separating pipe is communicated with the liquid spraying ring;
the inlet of the liquid dividing pipe is communicated with the outlet of the first liquid supply pump;
and the inlet of the first liquid supply pump is communicated with the first liquid storage tank so that the first liquid supply pump can pump the cleaning liquid in the first liquid storage tank into the liquid spraying ring.
Further provides a concrete structure of the liquid separating pipe, wherein the liquid separating pipe comprises an inlet pipe and at least two branch pipes; wherein,
the inlet of the inlet pipe is communicated with the outlet of the first liquid supply pump through a first hose;
the outlet of the inlet pipe is communicated with one end part of the branch pipe;
the other end of the branch pipe is communicated with the liquid spraying ring;
at least two branch pipes are arranged and distributed in sequence along the circumferential direction of the liquid spraying ring.
Further, in order to clean the internal threads, the pipe thread cleaning device also comprises an internal cleaning device for cleaning the internal threads on the pipe, wherein the internal cleaning device comprises a second liquid collecting cover and a spray head; wherein,
the liquid supply device is also connected with the spray head and is used for pumping the cleaning liquid into the spray head;
the spray head is used for extending into the inner side of the pipe when the internal thread is cleaned, and at least one second nozzle used for spraying liquid to the internal thread in the pipe is arranged on the spray head;
the second liquid collecting cover is connected with the spray head and used for covering the outer side of the corresponding end part of the pipe when the spray head extends into the pipe so as to collect the cleaning liquid sprayed out from the second nozzle.
Further provides a concrete structure of the spray head, the spray head comprises a spray head body and a liquid guide pipe; wherein,
the liquid guide pipe is connected to the second liquid collection cover;
the inlet end of the liquid guide pipe is connected with the liquid supply device;
the spray head body is connected to the outlet end of the liquid guide pipe and is suitable for extending into the pipe along with the liquid guide pipe;
the second nozzle is arranged on the nozzle body.
The liquid supply device comprises a second liquid supply assembly which is connected with the spray head and used for pumping cleaning liquid into the spray head;
the second liquid supply assembly comprises a second liquid storage tank and a second liquid supply pump;
the second liquid storage tank stores cleaning liquid;
the inlet of the second liquid supply pump is communicated with the second liquid storage tank;
the outlet of the second liquid supply pump is communicated with the inlet end of the liquid guide pipe through a second hose, so that the second liquid supply pump can pump the cleaning liquid in the second liquid storage tank into the liquid guide pipe and further into the spray head body.
Further, in order to prevent the cleaning liquid from overflowing, a first water retaining part is connected to the first liquid collecting cover, the outer periphery of the first water retaining part is connected to the first liquid collecting cover, and the inner periphery of the first water retaining part is used for abutting against the outer pipe wall of the pipe when the end of the pipe extends into the first liquid collecting cover;
and/or the second liquid collecting cover is connected with a second water retaining part, the outer peripheral part of the second water retaining part is connected to the second liquid collecting cover, and the inner peripheral part of the second water retaining part is used for abutting against the outer pipe wall of the pipe when the end part of the pipe extends into the second liquid collecting cover.
Further, the pipe thread cleaning device also comprises a waste liquid collecting container;
a first waste liquid outlet is formed in the first liquid collecting cover;
a second waste liquid outlet is formed in the second liquid collecting cover;
the first waste liquid outlet and the second waste liquid outlet are respectively connected with the waste liquid collecting container through pipelines;
and outlet valves are respectively arranged in the first waste liquid outlet and the second waste liquid outlet.
In order to further facilitate the operation, at least one first handle is connected to the first liquid collecting cover;
and/or at least one second handle is connected to the second liquid collection cover.
After the technical scheme is adopted, the cleaning liquid is pumped into the liquid spraying ring by the liquid supply device, then the cleaning liquid is sprayed out from the first nozzle and can quickly and efficiently wash dirt such as thread grease on the external thread, and the like, so that workers do not need to brush with brushes, the labor intensity of the workers is reduced, bristles cannot be remained, the cleaning efficiency is improved, and the cleaning effect is improved.
Drawings
FIG. 1 is a schematic structural view of the pipe thread cleaning device of the present invention;
FIG. 2 is a schematic structural view of the external cleaning device of the present invention;
fig. 3 is a schematic structural view of the inner cleaning device of the present invention.
Detailed Description
In order that the present invention may be more clearly understood, the following detailed description is given with reference to the accompanying drawings.
As shown in fig. 1 and 2, a pipe thread cleaning device comprises a liquid supply device and an outer cleaning device 200 for cleaning external threads on a pipe 100, wherein the outer cleaning device 200 comprises a first liquid collecting cover 1 and a liquid spraying ring 2; wherein,
the liquid supply device is connected with the liquid spraying ring 2 and is used for pumping cleaning liquid into the liquid spraying ring 2;
the liquid spraying ring 2 is used for being sleeved on the outer side of the external thread when the external thread is cleaned, and at least one first nozzle 3 used for spraying liquid to the external thread is arranged in the liquid spraying ring 2;
the first liquid collecting cover 1 is connected with the liquid spraying ring 2 and covers the outer side of the liquid spraying ring 2, and the first liquid collecting cover 1 is used for collecting cleaning liquid sprayed from the first nozzle 3; in this embodiment, the first nozzle 3 is provided in plurality and uniformly distributed along the circumferential direction of the liquid spray ring 2, and the first nozzle 3 is used for spraying the cleaning liquid toward the inner side of the liquid spray ring 2. Specifically, the cleaning liquid is pumped into the liquid spraying ring 2 by the liquid supply device, then the cleaning liquid is sprayed out of the first nozzle 3, dirt such as thread grease on the external thread can be quickly and efficiently washed away, a worker does not need to brush with a brush, the labor intensity of the worker is reduced, bristles cannot be remained, the cleaning efficiency is improved, and the cleaning effect is improved.
As shown in fig. 1 and 2, the liquid spraying ring 2 can be connected with the first liquid collecting cover 1 through at least two connecting rods 4;
one end part of the connecting rod 4 is connected with the liquid spraying ring 2;
the other end of the connecting rod 4 is connected to the inner wall of the first liquid collecting cover 1;
at least two connecting rods 4 are sequentially arranged and distributed along the circumferential direction of the liquid spraying ring 2; preferably, there are 3 or 4 connecting rods 4, and all the connecting rods 4 are uniformly distributed along the circumferential direction of the liquid spraying ring 2.
As shown in fig. 1 and 2, the liquid supply device may include a first liquid supply assembly connected to the liquid spray ring 2 and used for pumping a cleaning liquid into the liquid spray ring 2;
the first liquid supply assembly is, for example and without limitation, of a structure comprising a first liquid storage tank 5, a first liquid supply pump 6 and a liquid separation pipe 7;
the first liquid storage tank 5 stores cleaning liquid;
the outlet of the liquid distribution pipe 7 is communicated with the liquid spraying ring 2;
the inlet of the liquid separating pipe 7 is communicated with the outlet of the first liquid supply pump 6;
the inlet of the first liquid supply pump 6 is communicated with the first liquid storage tank 5 so that the first liquid supply pump 6 pumps the cleaning liquid in the first liquid storage tank 5 into the liquid spraying ring 2.
As shown in fig. 1 and 2, the liquid distribution pipe 7 is, for example and without limitation, a structure including an inlet pipe 8 and at least two branch pipes 9; wherein,
the inlet of the inlet pipe 8 is communicated with the outlet of the first liquid supply pump 6 through a first hose 10;
the outlet of the inlet pipe 8 is communicated with one end part of the branch pipe 9;
the other end of the branch pipe 9 is communicated with the liquid spraying ring 2;
at least two branch pipes 9 are sequentially arranged and distributed along the circumferential direction of the liquid spraying ring 2; in this embodiment, a first valve 11 is also provided 1 in the inlet tube 8 or the first hose 10. Specifically, the first liquid supply pump 6 pumps the cleaning liquid in the first liquid storage tank 5 to the inlet pipe 8, and then the cleaning liquid is divided into the branch pipes 9 and flows into the liquid spraying ring 2 uniformly.
As shown in fig. 1 and 3, the pipe thread cleaning device may further comprise an internal cleaning device 300 for cleaning internal threads on the pipe 100, and the internal cleaning device 300 may comprise a second liquid collecting cover 12 and a spray head 13; wherein,
the liquid supply device is also connected with the spray head 13 and is used for pumping cleaning liquid into the spray head 13;
the spray head 13 is used for extending into the inner side of the pipe 100 when the internal thread is cleaned, and at least one second nozzle 14 for spraying liquid to the internal thread in the pipe 100 is arranged on the spray head 13;
the second liquid collecting cover 12 is connected with the spray head 13, and the second liquid collecting cover 12 is used for covering the outer side of the corresponding end part of the pipe 100 when the spray head 13 extends into the pipe 100 so as to collect the cleaning liquid sprayed from the second nozzle 14; in the present embodiment, the second nozzle orifices 14 are provided in plurality and uniformly distributed along the circumferential direction of the spray head 13, and the second nozzle orifices 14 are used for spraying the cleaning liquid to the outside.
As shown in fig. 1 and 3, the spray head 13 may include a spray head body 15 and a liquid guide tube 16; wherein,
the liquid guide pipe 16 is connected to the second liquid collecting cover 12;
the inlet end of the liquid guide pipe 16 is connected with the liquid supply device;
the spray head body 15 is connected to the outlet end of the liquid guide pipe 16 and is suitable for extending into the pipe 100 along with the liquid guide pipe 16;
the second nozzle 14 is arranged on the nozzle body 15.
As shown in fig. 1 and 3, the liquid supply device may further include a second liquid supply assembly connected to the spray head 13 and configured to pump a cleaning liquid into the spray head 13;
the second liquid supply assembly may include a second liquid tank 17 and a second liquid supply pump 18;
the second liquid storage tank 17 stores cleaning liquid;
an inlet of the second liquid feed pump 18 is communicated with the second liquid tank 17;
the outlet of the second liquid supply pump 18 is communicated with the inlet end of the liquid guide tube 16 through a second hose 19, so that the second liquid supply pump 18 pumps the cleaning liquid in the second liquid storage tank 17 into the liquid guide tube 16 and further into the spray head body 15, and then the cleaning liquid in the spray head body 15 is sprayed onto the internal thread from the second nozzle 14 so as to clean the internal thread, and further dirt such as thread grease on the internal thread can be quickly and efficiently washed away, so that a worker does not need to brush with a brush, the labor intensity of the worker is reduced, bristles cannot be left, the cleaning efficiency is improved, and the cleaning effect is improved.
In this embodiment, the first liquid supply pump 6 and the second liquid supply pump 18 may be high-temperature and high-pressure water pumps, and the high-temperature and high-pressure water pumps can heat and pressurize the cleaning liquid to a suitable temperature and pressure, thereby facilitating improvement of the cleaning effect and improvement of the cleaning efficiency. More specifically, a second valve 27 is further disposed in the catheter 16 or the second hose 19.
As shown in fig. 1 to 3, a first water blocking member 20 is connected to the first liquid collecting cover 1, an outer circumferential portion of the first water blocking member 20 is connected to the first liquid collecting cover 1, and an inner circumferential portion of the first water blocking member 20 is configured to abut against an outer wall of the pipe 100 when an end portion of the pipe 100 extends into the first liquid collecting cover 1, so as to prevent the cleaning liquid from overflowing.
As shown in fig. 1 to 3, a second water retaining member 21 is connected to the second water collecting cover 12, an outer circumferential portion of the second water retaining member 21 is connected to the second water collecting cover 12, and an inner circumferential portion of the second water retaining member 21 is configured to abut against an outer wall of the pipe 100 when an end portion of the pipe 100 extends into the second water collecting cover 12, so as to prevent the cleaning liquid from overflowing; in this embodiment, the first water stop member 20 and the second water stop member 21 are both made of rubber.
As shown in fig. 1 to 3, the pipe thread cleaning device may further include a waste liquid collecting container 22;
a first waste liquid outlet 23 is formed in the first liquid collecting cover 1;
a second waste liquid outlet 24 is formed in the second liquid collecting cover 12;
the first waste liquid outlet 23 and the second waste liquid outlet 24 are respectively connected with the waste liquid collecting container 22 through pipelines;
outlet valves are respectively arranged in the first waste liquid outlet 23 and the second waste liquid outlet 24; specifically, the cleaning liquid collected by the first liquid collecting cover 1 is discharged into the waste liquid collecting container 22 from the first waste liquid outlet 23, and the cleaning liquid collected by the second liquid collecting cover 12 is discharged into the waste liquid collecting container 22 from the second waste liquid outlet 24.
As shown in fig. 1 to 3, at least one first handle 25 can be connected to the first liquid collecting cover 1;
at least one second handle 26 can be connected to the second liquid collecting cover 12; wherein the first handle and the second handle are provided for the purpose of facilitating the operation.
The working principle of the utility model is as follows:
the cleaning liquid is pumped into the liquid spraying ring 2 by the liquid supply device, then the cleaning liquid is sprayed out of the first nozzle 3, dirt such as thread grease on the external thread can be quickly and efficiently washed away, a worker does not need to brush the cleaning liquid with a brush, the labor intensity of the worker is reduced, bristles cannot be left, the cleaning efficiency is improved, and the cleaning effect is improved.
The above-mentioned embodiments further explain in detail the technical problems, technical solutions and advantages solved by the present invention, and it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The pipe thread cleaning device is characterized by comprising a liquid supply device and an outer cleaning device (200) for cleaning external threads on a pipe (100), wherein the outer cleaning device (200) comprises a first liquid collecting cover (1) and a liquid spraying ring (2); wherein,
the liquid supply device is connected with the liquid spraying ring (2) and is used for pumping cleaning liquid into the liquid spraying ring (2);
the liquid spraying ring (2) is used for being sleeved on the outer side of the external thread when the external thread is cleaned, and at least one first nozzle (3) used for spraying liquid to the external thread is arranged in the liquid spraying ring (2);
the first liquid collecting cover (1) is connected with the liquid spraying ring (2) and covers the outer side of the liquid spraying ring (2), and the first liquid collecting cover (1) is used for collecting cleaning liquid sprayed out from the first nozzle (3).
2. The tubular thread cleaning apparatus of claim 1,
the liquid spraying ring (2) is connected with the first liquid collecting cover (1) through at least two connecting rods (4);
one end part of the connecting rod (4) is connected with the liquid spraying ring (2);
the other end of the connecting rod (4) is connected to the inner wall of the first liquid collecting cover (1);
at least two connecting rods (4) are sequentially arranged and distributed along the circumferential direction of the liquid spraying ring (2).
3. The tubular thread cleaning apparatus of claim 1,
the liquid supply device comprises a first liquid supply assembly which is connected with the liquid spraying ring (2) and is used for pumping cleaning liquid into the liquid spraying ring (2);
the first liquid supply assembly comprises a first liquid storage tank (5), a first liquid supply pump (6) and a liquid distribution pipe (7);
the first liquid storage tank (5) stores cleaning liquid;
the outlet of the liquid separating pipe (7) is communicated with the liquid spraying ring (2);
the inlet of the liquid separating pipe (7) is communicated with the outlet of the first liquid supply pump (6);
the inlet of the first liquid supply pump (6) is communicated with the first liquid storage tank (5) so that the first liquid supply pump (6) pumps the cleaning liquid in the first liquid storage tank (5) into the liquid spraying ring (2).
4. A pipe thread cleaning device according to claim 3,
the liquid separating pipe (7) comprises an inlet pipe (8) and at least two branch pipes (9); wherein,
the inlet of the inlet pipe (8) is communicated with the outlet of the first liquid supply pump (6) through a first hose (10);
the outlet of the inlet pipe (8) is communicated with one end part of the branch pipe (9);
the other end of the branch pipe (9) is communicated with the liquid spraying ring (2);
at least two branch pipes (9) are sequentially arranged and distributed along the circumferential direction of the liquid spraying ring (2).
5. The tubular thread cleaning device according to claim 1, further comprising an inner cleaning device (300) for cleaning an internal thread on the tubular (100), the inner cleaning device (300) comprising a second drip chamber (12) and a spray head (13); wherein,
the liquid supply device is also connected with the spray head (13) and is used for pumping cleaning liquid into the spray head (13);
the spray head (13) is used for extending into the inner side of the pipe (100) when the internal thread is cleaned, and at least one second spray opening (14) for spraying liquid to the internal thread in the pipe (100) is formed in the spray head (13);
the second liquid collecting cover (12) is connected with the spray head (13), and the second liquid collecting cover (12) is used for covering the outer side of the corresponding end part of the pipe (100) when the spray head (13) extends into the pipe (100) so as to collect the cleaning liquid sprayed out from the second spray nozzle (14).
6. The tubular thread cleaning apparatus of claim 5,
the spray head (13) comprises a spray head body (15) and a liquid guide pipe (16); wherein,
the liquid guide pipe (16) is connected to the second liquid collecting cover (12);
the inlet end of the liquid guide pipe (16) is connected with the liquid supply device;
the spray head body (15) is connected to the outlet end of the liquid guide pipe (16) and is suitable for extending into the pipe (100) along with the liquid guide pipe (16);
the second nozzle (14) is arranged on the nozzle body (15).
7. The tubular thread cleaning apparatus of claim 6,
the liquid supply device comprises a second liquid supply component which is connected with the spray head (13) and is used for pumping cleaning liquid into the spray head (13);
the second liquid supply assembly comprises a second liquid storage tank (17) and a second liquid supply pump (18);
the second liquid storage tank (17) stores cleaning liquid;
the inlet of the second liquid supply pump (18) is communicated with the second liquid storage tank (17);
the outlet of the second liquid supply pump (18) is communicated with the inlet end of the liquid guide pipe (16) through a second hose (19) so that the second liquid supply pump (18) pumps the cleaning liquid in the second liquid storage tank (17) into the liquid guide pipe (16) and then into the spray head body (15).
8. The tubular thread cleaning apparatus of claim 5,
the first liquid collecting cover (1) is connected with a first water retaining part (20), the outer peripheral part of the first water retaining part (20) is connected to the first liquid collecting cover (1), and the inner peripheral part of the first water retaining part (20) is used for abutting against the outer pipe wall of the pipe (100) when the end part of the pipe (100) extends into the first liquid collecting cover (1);
and/or a second water retaining part (21) is connected to the second water collecting cover (12), the outer peripheral part of the second water retaining part (21) is connected to the second water collecting cover (12), and the inner peripheral part of the second water retaining part (21) is used for abutting against the outer pipe wall of the pipe (100) when the end part of the pipe (100) extends into the second water collecting cover (12).
9. The tubular thread cleaning device according to claim 5, further comprising a waste liquid collection container (22);
a first waste liquid outlet (23) is formed in the first liquid collecting cover (1);
a second waste liquid outlet (24) is formed in the second liquid collecting cover (12);
the first waste liquid outlet (23) and the second waste liquid outlet (24) are respectively connected with the waste liquid collecting container (22) through pipelines;
outlet valves are respectively arranged in the first waste liquid outlet (23) and the second waste liquid outlet (24).
10. The tubular thread cleaning apparatus of claim 5,
the first liquid collecting cover (1) is connected with at least one first handle (25);
and/or at least one second handle (26) is connected to the second liquid collecting cover (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221013585.7U CN217289631U (en) | 2022-04-28 | 2022-04-28 | Pipe thread cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221013585.7U CN217289631U (en) | 2022-04-28 | 2022-04-28 | Pipe thread cleaning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217289631U true CN217289631U (en) | 2022-08-26 |
Family
ID=82913866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221013585.7U Active CN217289631U (en) | 2022-04-28 | 2022-04-28 | Pipe thread cleaning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217289631U (en) |
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2022
- 2022-04-28 CN CN202221013585.7U patent/CN217289631U/en active Active
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