Special petroleum pipeline screw thread cleaning device

By designing a special oil pipeline thread cleaning device, which utilizes a drive motor and water injection components in conjunction with a spraying rotating drum and drive structure, it achieves thorough cleaning of oil and gas pipeline threads, solving the problem of poor cleaning effect of existing devices and improving cleaning efficiency and automation.

CN224114700UActive Publication Date: 2026-04-14TIANJIN DAFANHUA PETROLEUM TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN DAFANHUA PETROLEUM TECH CO LTD
Filing Date
2025-05-07
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing oil and gas pipeline cleaning equipment is not effective in cleaning the threads of oil-specific pipelines, often leaving lubricating oil residue that affects subsequent pipeline connections.

Method used

A special oil pipeline thread cleaning device has been designed, comprising a cleaner housing, a drive motor, a water injection component, a cleaning spray rotary drum, a drive turntable, a drive spring pin, a drum drive plate, a spring reset component, and a limit plate. The drive motor provides power, the water injection component provides clean water, and the spray rotary drum performs thorough cleaning without dead angles. The drive spring pin and the limit plate enable reciprocating oscillation to ensure effective cleaning.

Benefits of technology

It achieves comprehensive and efficient cleaning of the threads of oil pipelines, avoiding lubricant residue and improving cleaning effect and automation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of petroleum and natural gas, and provides a special petroleum pipeline screw thread cleaning device which is characterized in that a driving motor is arranged in a cleaner shell, the output end of the driving motor is fixedly connected with a driving turntable, and a driving spring pin is arranged on the front side of the driving turntable; the driving spring pin is used in cooperation with an arc-shaped sliding groove formed in the rotary drum driving plate, the spring reset assembly is arranged between the rotary drum driving plate and the limiting clamping plate, one end of the spring reset assembly is fixedly connected with the rotary drum driving plate, the other end of the spring reset assembly is fixedly connected with the limiting clamping plate, and the limiting clamping plate is fixedly connected with the cleaner shell. The cleaning and spraying rotary drum is fixedly installed on the front side of the rotary drum driving plate, the water injection assembly is arranged on the upper side of the cleaning device shell, and the output end of the water injection assembly is connected with the input end of the cleaning and spraying rotary drum movably arranged in the cleaning device shell. The automation degree is high.
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Description

Technical Field

[0001] This utility model relates to the field of oil and gas technology, and in particular to a special oil pipeline thread cleaning device. Background Technology

[0002] Oil and gas pipelines are pipelines that transport oil and gas from extraction sites or processing plants to urban gas distribution centers or industrial users. They are also known as gas transmission pipelines. Using oil and gas pipelines to transport oil and gas is the only way to transport large quantities of oil and gas on land. During the production process, oil and gas pipelines are coated with sealing lubricating oil. It is necessary to clean the sealing lubricating oil off the threads at both ends of the pipeline to ensure that the threads are clean and smooth.

[0003] For example, application number CN201310341943.6 discloses a portable threaded cleaner for oil pipe rod joints. The detachable threaded brush is connected to the motor shaft via a flat key, screws, and a heat dissipation window inside the housing and is sealed by a sealing groove. The battery is located at the bottom of the housing and is connected to the housing via screws. The battery is electrically connected to the motor.

[0004] However, the cleaning brush used when cleaning the above-mentioned device is generally not very effective, and often leaves a small amount of lubricating oil residue, which is not conducive to subsequent pipe connections. Utility Model Content

[0005] To address the aforementioned problems, this invention provides a special oil pipeline thread cleaning device.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A thread cleaning device for oil pipelines includes: a cleaner housing, a drive motor, a water injection assembly, a cleaning spray rotary drum, a drive disc, a drive spring pin, a drum drive plate, a spring reset assembly, and a limit plate. The drive motor is located inside the cleaner housing, and its output end is fixedly connected to the drive disc. A drive spring pin is located on the front side of the drive disc and engages with an arc-shaped groove on the drum drive plate. The spring reset assembly is located between the drum drive plate and the limit plate, with one end fixedly connected to the drum drive plate and the other end fixedly connected to the limit plate. The limit plate is fixedly connected to the cleaner housing. The cleaning spray rotary drum is fixedly installed on the front side of the drum drive plate. The water injection assembly is located on the upper side of the cleaner housing, and its output end is connected to the input end of the cleaning spray rotary drum, which is movably located inside the cleaner housing.

[0008] Preferably, the cleaner housing includes: a housing body, a motor mounting part, a water injection component mounting part, and a rotating drum mounting part. The housing body, motor mounting part, water injection component mounting part, and rotating drum mounting part are an integral structure. The rotating drum mounting part is connected to the housing body through the motor mounting part and the water injection component mounting part. The drive motor is disposed in the motor mounting part, the water injection component is disposed on the water injection component mounting part, and the drive turntable, drive spring pin, rotating drum drive plate, spring reset component, and limit plate are disposed in the rotating drum mounting part. The housing body is provided with a handle and a controller. The controller is electrically connected to the drive motor and the water injection component and is used to control the start of the drive motor and the water injection component.

[0009] Preferably, the water injection assembly includes: an external water injection threaded interface, a horizontal connecting pipe, a water pump, a vertical connecting pipe, and a flexible hose. The lower end of the external water injection threaded interface is connected to the input end of the water pump through the horizontal connecting pipe. The output end of the water pump is connected to one end of the flexible hose through the vertical connecting pipe. The other end of the flexible hose is connected to the input end of the cleaning spray rotary drum.

[0010] Preferably, the cleaning spray rotary drum has a water-holding area inside, and the inner wall of the cleaning spray rotary drum is provided with multiple sets of spray nozzles arranged in a uniform array, and the spray nozzles are connected to the water-holding area.

[0011] Preferably, the drive spring pin includes a wedge pin, a connecting rod, and a compression spring. The wedge pin is used in conjunction with an annular groove provided on the rotary drum drive plate. The wedge pin is slidably connected to the drive turntable through the connecting rod. The compression spring, which is provided between the wedge pin and the drive turntable, is fitted onto the connecting rod.

[0012] Preferably, the rotary drum drive plate includes: a rotary drum drive plate body, an annular groove, an annular mounting plate, and a first mounting protrusion. The annular groove, the annular mounting plate, and the first mounting protrusion are disposed on the rotary drum drive plate body. The annular groove is used in conjunction with a wedge pin. The rotary drum drive plate body is connected to the cleaning spray rotary drum through the annular mounting plate. The rotary drum drive plate body is connected to one end of the spring reset assembly through the first mounting protrusion.

[0013] Preferably, the limiting plate includes: a plate body, a connecting narrow block and a second mounting protrusion. Two sets of connecting narrow blocks are provided, and the two sets of connecting narrow blocks are provided on the upper and lower sides of the plate body. The plate body is fixedly connected to the rotating drum mounting part through the connecting narrow blocks, and the plate body is connected to the other end of the spring reset assembly through the second mounting protrusion.

[0014] The advantages of this utility model are as follows: By setting a water injection component, this utility model can provide clean water to the cleaning spray rotary drum, so that the cleaning spray rotary drum can clean the pipe threaded parts by spraying clean water. By setting a rotary drum drive plate, the cleaning spray rotary drum can be driven to rotate, thereby cleaning the pipe threaded parts without dead angles. By setting a drive motor to provide rotational power, and by setting a drive spring pin, spring reset component and limit plate, the rotary drum drive plate can be reciprocated, thereby preventing the water inlet pipe from getting tangled on the cleaning spray rotary drum. Attached Figure Description

[0015] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a side view of the interior of this utility model;

[0018] Figure 3 This is a side view of the connection between the limiting plate and the rotating drum drive plate of this utility model;

[0019] Figure 4 This is a side view of the outer casing of the cleaner of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the water injection component of this utility model;

[0021] Figure 6 This is a cross-sectional view of the cleaning spray rotary drum of this utility model;

[0022] Figure 7 This is a schematic diagram of the structure of the drive spring pin of this utility model;

[0023] Figure 8 This is a schematic diagram of the structure of the rotary drum drive plate of this utility model;

[0024] Figure 9 This is a schematic diagram of the structure of the limiting plate of this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Cleaner housing; 2. Drive motor; 3. Water injection assembly; 4. Cleaning spray rotary drum; 5. Drive turntable; 6. Drive spring pin; 7. Drum drive plate; 8. Spring return assembly; 9. Limiting plate; 11. Housing body; 12. Motor mounting part; 13. Water injection assembly mounting part; 14. Drum mounting part; 31. External water injection threaded interface; 32. Horizontal connecting pipe; 33. Water pump; 34. Vertical connecting pipe; 35. Flexible hose; 41. Water holding area; 42. Spray nozzle; 61. Wedge pin; 62. Connecting rod; 63. Compression spring; 71. Drum drive plate body; 72. Annular groove; 73. Annular mounting plate; 74. First mounting protrusion; 91. Clamping plate body; 92. Connecting narrow block; 93. Second mounting protrusion. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0028] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Example 1, combined with Figure 1 , Figure 2 and Figure 3 Explanation:

[0031] A special oil pipeline thread cleaning device includes: a cleaner housing 1, a drive motor 2, a water injection assembly 3, a cleaning spray rotary drum 4, a drive turntable 5, a drive spring pin 6, a drum drive plate 7, a spring reset assembly 8, and a limit plate 9.

[0032] The drive motor 2 is installed inside the cleaner housing 1. The output end of the drive motor 2 is fixedly connected to the drive turntable 5. The drive motor 2 can drive the drive turntable 5 to rotate.

[0033] A drive spring pin 6 is provided on the front side of the drive turntable 5. The drive spring pin 6 works in conjunction with the arc-shaped slide groove on the rotary drum drive plate 7. The drive spring pin 6 can drive the rotary drum drive plate 7 to rotate slightly through the arc-shaped slide groove.

[0034] The spring reset assembly 8 is disposed between the rotary drum drive plate 7 and the limit plate 9. One end of the spring reset assembly 8 is fixedly connected to the rotary drum drive plate 7, and the other end of the spring reset assembly 8 is fixedly connected to the limit plate 9. The spring reset assembly 8 is used to reset the rotary drum drive plate 7, thereby enabling the cleaning spray rotary drum 4 to complete the reciprocating swing action.

[0035] The limiting plate 9 is fixedly connected to the cleaner housing 1, the cleaning spray rotary drum 4 is fixedly installed on the front side of the drum drive plate 7, the water injection component 3 is set on the upper side of the cleaner housing 1, and the output end of the water injection component 3 is connected to the input end of the cleaning spray rotary drum 4 which is movably set inside the cleaner housing 1.

[0036] By setting up the water injection component 3, clean water can be provided to the cleaning spray rotary drum 4, so that the cleaning spray rotary drum 4 can clean the pipe threaded parts by spraying clean water. By setting up the drum drive plate 7, the cleaning spray rotary drum 4 can be driven to rotate, thereby cleaning the pipe threaded parts without dead angles. By setting up the drive motor 2, rotational power is provided. By setting up the drive spring pin 6, spring reset component 8 and limit plate 9, the drum drive plate 7 can be made to swing back and forth.

[0037] Example 2, based on Example 1, combined with... Figure 4 Explanation:

[0038] The cleaner housing 1 includes: housing body 11, motor mounting part 12, water injection component mounting part 13 and rotating drum mounting part 14.

[0039] The outer shell 11, motor mounting part 12, water injection component mounting part 13 and rotating drum mounting part 14 are integrated into one structure, which has high structural strength and is easy to form into one piece.

[0040] The rotating drum mounting part 14 is connected to the outer shell body 11 through the motor mounting part 12 and the water injection component mounting part 13. The drive motor 2 is installed in the motor mounting part 12, and the water injection component 3 is installed on the water injection component mounting part 13. The drive turntable 5, drive spring pin 6, rotating drum drive plate 7, spring reset component 8 and limit plate 9 are installed in the rotating drum mounting part 14. The outer shell body 11 is provided with a handle and a controller. The controller is electrically connected to the drive motor 2 and the water injection component 3 and is used to control the start of the drive motor 2 and the water injection component 3.

[0041] Example 3, based on Example 2, combined with Figure 5 Explanation:

[0042] The water injection assembly 3 includes: an external water injection threaded interface 31, a horizontal connecting pipe 32, a water pump 33, a vertical connecting pipe 34, and a flexible hose 35. The lower end of the external water injection threaded interface 31 is connected to the input end of the water pump 33 through the horizontal connecting pipe 32. The output end of the water pump 33 is connected to one end of the flexible hose 35 through the vertical connecting pipe 34. The other end of the flexible hose 35 is connected to the input end of the cleaning spray rotary drum 4.

[0043] By using an external water injection threaded interface 31, a horizontal connecting pipe 32, a vertical connecting pipe 34, and a flexible hose 35, the entire water injection assembly has a compact structure, and the connections between the components are convenient, facilitating installation and maintenance. The external water injection threaded interface 31 allows users to easily connect to an external water source for water injection, making operation simple and quick. The water pump 33 increases the water pressure from the external source, ensuring sufficient water pressure for the cleaning spray rotary drum 4, thereby improving the cleaning effect. The flexible hose 35 allows for small reciprocating rotation of the cleaning spray rotary drum 4.

[0044] Example 4, based on Example 3, combined with Figure 6 Explanation:

[0045] The cleaning spray rotary drum 4 has a water-containing area 41 inside, and multiple sets of spray nozzles 42 are arranged in a uniform array on the inner wall of the cleaning spray rotary drum 4. The spray nozzles 42 are connected to the water-containing area 41.

[0046] This configuration, by setting up the water-holding area 41 and the spray nozzle 42, can improve the uniformity of spraying.

[0047] Example 5, based on Example 4, combined with Figure 7 Explanation:

[0048] The drive spring pin 6 includes a wedge pin 61, a connecting rod 62, and a compression spring 63. The wedge pin 61 is used in conjunction with the annular groove 72 provided on the rotary drum drive plate 7. The wedge pin 61 is slidably connected to the drive turntable 5 through the connecting rod 62. The compression spring 63, which is provided between the wedge pin 61 and the drive turntable 5, is fitted on the connecting rod 62.

[0049] With this configuration, the wedge pin 61 can drive the rotary drum drive plate 7 to rotate. When the rotary drum drive plate 7 rotates to the position limited by the limiting plate 9, the wedge pin 61 is compressed and retracts, disengaging from the limiting position of the rotary drum drive plate 7. Subsequently, the rotary drum drive plate 7 is reset under the action of the spring reset assembly 8, completing one small rotation of the rotary drum drive plate 7. When the wedge pin 61 returns to the initial position, the wedge pin 61 pops out under the action of the compression spring 63 and inserts into the annular groove 72 on the rotary drum drive plate 7, continuing to drive the rotary drum drive plate 7 to rotate slightly. This achieves the reciprocating small rotation of the rotary drum drive plate 7, thereby improving the spraying effect and expanding the spraying area.

[0050] Example 6, based on Example 5, combined with Figure 8 Explanation:

[0051] The rotary drum drive plate 7 includes: a rotary drum drive plate body 71, an annular groove 72, an annular mounting plate 73, and a first mounting protrusion 74. The annular groove 72, the annular mounting plate 73, and the first mounting protrusion 74 are disposed on the rotary drum drive plate body 71. The annular groove 72 is used in conjunction with the wedge pin 61. The rotary drum drive plate body 71 is connected to the cleaning spray rotary drum 4 through the annular mounting plate 73. The rotary drum drive plate body 71 is connected to one end of the spring reset assembly 8 through the first mounting protrusion 74.

[0052] With this configuration, the main body 71 of the rotating drum drive plate can drive the cleaning spray rotating drum 4 to rotate via the annular mounting plate 73, so as to clean the pipe threads with ease. The first mounting protrusion 74 is used to fix one end of the spring reset assembly 8.

[0053] Example 7, based on Example 6, combined with Figure 9 Explanation:

[0054] The limiting plate 9 includes: a plate body 91, a connecting narrow block 92, and a second mounting protrusion 93. Two sets of connecting narrow blocks 92 are provided, and the two sets of connecting narrow blocks 92 are provided on the upper and lower sides of the plate body 91. The plate body 91 is fixedly connected to the rotating drum mounting part 14 through the connecting narrow blocks 92. The plate body 91 is connected to the other end of the spring reset assembly 8 through the second mounting protrusion 93.

[0055] With this configuration, the card plate body 91 is fixed by the connecting narrow block 92, thereby limiting the rotation drive plate 7, and the second mounting protrusion 93 is used to fix the other end of the spring reset assembly 8.

[0056] The working principle of this utility model is as follows: When using this device, first connect the external water source to the external water injection thread interface 31, then put the cleaning spray rotary drum 4 onto the pipe thread, start the drive motor 2 and water pump 33, and clean water flows into the cleaning spray rotary drum 4 through the water injection component 3, and then sprays out from the spray nozzle 42 inside the cleaning spray rotary drum 4, thereby cleaning the residual oil stains on the pipe thread. The drive motor 2 drives the cleaning spray rotary drum 4 to swing, thereby improving the cleaning effect. This utility model has a reasonable structure, is easy to use, can clean the pipe thread from all directions, and has a high degree of automation.

[0057] For those skilled in the art, this utility model is not limited to the details of the exemplary embodiments described above, and can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model; therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0058] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any minor modifications, equivalent substitutions and improvements made to the above embodiments based on the technical essence of the present utility model should be included within the protection scope of the technical solution of the present utility model.

Claims

1. A special oil pipeline thread cleaning device, characterized in that, include: The cleaner comprises a housing (1), a drive motor (2), a water injection assembly (3), a cleaning spray rotary drum (4), a drive turntable (5), a drive spring pin (6), a drum drive plate (7), a spring return assembly (8), and a limit plate (9). The drive motor (2) is located inside the housing (1). The output end of the drive motor (2) is fixedly connected to the drive turntable (5). A drive spring pin (6) is provided on the front side of the drive turntable (5). The drive spring pin (6) cooperates with the arc-shaped sliding groove provided on the drum drive plate (7). The spring return assembly (8) The spring reset assembly (8) is fixedly connected at one end to the drum drive plate (7) and at the other end to the limit plate (9). The limit plate (9) is fixedly connected to the cleaner housing (1). The cleaning spray rotary drum (4) is fixedly installed on the front side of the drum drive plate (7). The water injection assembly (3) is set on the upper side of the cleaner housing (1). The output end of the water injection assembly (3) is connected to the input end of the cleaning spray rotary drum (4) which is movably set inside the cleaner housing (1).

2. The oil pipeline thread cleaning device according to claim 1, characterized in that, The cleaner housing (1) includes: a housing body (11), a motor mounting part (12), a water injection component mounting part (13), and a drum mounting part (14). The housing body (11), the motor mounting part (12), the water injection component mounting part (13), and the drum mounting part (14) are an integral structure. The drum mounting part (14) is connected to the housing body (11) through the motor mounting part (12) and the water injection component mounting part (13). The drive motor (2) is installed in the motor mounting part (12), the water injection component (3) is installed on the water injection component mounting part (13), the drive turntable (5), the drive spring pin (6), the drum drive plate (7), the spring reset component (8), and the limit plate (9) are installed in the drum mounting part (14). The housing body (11) is provided with a handle and a controller. The controller is electrically connected to the drive motor (2) and the water injection component (3). The controller is used to control the start of the drive motor (2) and the water injection component (3).

3. The oil pipeline thread cleaning device according to claim 2, characterized in that, The water injection assembly (3) includes: an external water injection threaded interface (31), a horizontal connecting pipe (32), a water pump (33), a vertical connecting pipe (34), and a flexible hose (35). The lower end of the external water injection threaded interface (31) is connected to the input end of the water pump (33) through the horizontal connecting pipe (32). The output end of the water pump (33) is connected to one end of the flexible hose (35) through the vertical connecting pipe (34). The other end of the flexible hose (35) is connected to the input end of the cleaning spray rotary drum (4).

4. The oil pipeline thread cleaning device according to claim 3, characterized in that, The cleaning spray rotary drum (4) has a water-holding area (41) inside, and multiple sets of uniformly arranged spray nozzles (42) are provided on the inner wall of the cleaning spray rotary drum (4). The spray nozzles (42) are connected to the water-holding area (41).

5. The oil pipeline thread cleaning device according to claim 2, characterized in that, The drive spring pin (6) includes a wedge pin (61), a connecting rod (62), and a compression spring (63). The wedge pin (61) is used in conjunction with the annular groove (72) provided on the rotary drum drive plate (7). The wedge pin (61) is slidably connected to the drive turntable (5) through the connecting rod (62). The compression spring (63) provided between the wedge pin (61) and the drive turntable (5) is fitted on the connecting rod (62).

6. The oil pipeline thread cleaning device according to claim 5, characterized in that, The rotary drum drive plate (7) includes: a rotary drum drive plate body (71), an annular groove (72), an annular mounting plate (73), and a first mounting protrusion (74). The annular groove (72), the annular mounting plate (73), and the first mounting protrusion (74) are disposed on the rotary drum drive plate body (71). The annular groove (72) is used in conjunction with the wedge pin (61). The rotary drum drive plate body (71) is connected to the cleaning spray rotary drum (4) through the annular mounting plate (73). The rotary drum drive plate body (71) is connected to one end of the spring reset assembly (8) through the first mounting protrusion (74).

7. A thread cleaning device for oil pipelines according to claim 2, characterized in that, The limiting plate (9) includes: a plate body (91), a connecting narrow block (92), and a second mounting protrusion (93). The connecting narrow block (92) is provided in two sets, which are located on the upper and lower sides of the plate body (91). The plate body (91) is fixedly connected to the rotating drum mounting part (14) through the connecting narrow block (92). The plate body (91) is connected to the other end of the spring reset assembly (8) through the second mounting protrusion (93).

Citation Information

Patent Citations

  • Portable screw thread cleaning device of petroleum pipe pole connector

    CN103418561A