Petroleum pipeline connecting assembly convenient to maintain

By using easy-to-maintain oil pipeline connection components, filter components, and gate structures, the shortcomings of welding and flange connections are overcome, enabling cleaning and maintenance without draining oil and extending the service life of oil pipelines.

CN224214963UActive Publication Date: 2026-05-08孟祥斌
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
孟祥斌
Filing Date
2025-06-23
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

The existing oil pipeline connection methods are mainly welding or flange connection. Welding is not convenient for separation and maintenance, and flange connection requires the oil to be drained for maintenance. Moreover, oil deposits are difficult to clean, leading to valve blockage and pipeline corrosion, which shortens the service life.

Method used

The oil pipeline connection components are easy to maintain and include a first housing, a second housing, a gate, a sealing strip, a filter assembly, and an adjustment assembly. The filter assembly filters out deposits, and the gate is adjusted by rotating the handwheel to block the oil pipeline, thus avoiding the need to drain the oil for cleaning and maintenance.

Benefits of technology

It enables the cleaning and maintenance of oil pipelines without draining the oil, reducing sediment buildup and extending the service life of pipelines and valves.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a petroleum pipeline connecting assembly convenient to maintain, which relates to the technical field of petroleum pipeline connection and comprises a first shell, a second shell is fixedly mounted on the rear side of the first shell, two flashboards are slidably mounted between the first shell and the second shell, and a connecting plate is fixedly mounted between the tops of the two flashboards. And the four sealing rubber strips are fixedly installed on the arc-shaped inner walls of the left ends and the right ends of the first shell and the second shell correspondingly, and a first cover plate is fixedly installed between the top of the first shell and the top of the second shell. According to the device, the hand wheel is rotated, the threaded rod is driven to rotate, then the threaded rod drives the connecting plate to move downwards to control the two flashboards to descend, in the descending process, the two flashboards can gradually block ports of the two petroleum pipelines, and therefore petroleum in the petroleum pipelines does not need to be emptied; and the efficiency of cleaning and maintaining the filtering assembly is improved.
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Description

Technical Field

[0001] This utility model relates to the field of oil pipeline connection technology, and in particular to an oil pipeline connection component that is easy to maintain. Background Technology

[0002] An oil pipeline (also known as a pipeline or conduit) is composed of oil pipes and their accessories. According to the needs of the process, it is equipped with corresponding oil pump units and designed and installed into a complete pipeline system to complete the tasks of oil unloading and transportation. Oil pipelines are generally made of steel. During the transportation of oil, due to the long transportation route, connecting components are needed to connect and combine multiple sections of oil pipelines.

[0003] In existing technologies, oil pipelines are generally connected by welding or flanges. Welding is not convenient for separating and maintaining each section of the pipeline. Although flange connections allow for segmented maintenance, the oil in the pipeline needs to be emptied each time maintenance is performed. Furthermore, during the transportation of oil in the pipeline, sediments in the oil tend to accumulate on the inner wall of the pipeline, which is difficult to clean, can easily cause blockage of valves and equipment on the pipeline, and can also cause corrosion to the inner wall of the pipeline, thus shortening its service life. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an easy-to-maintain oil pipeline connection component. It solves the problems of conventional oil pipeline connections, which typically involve welding or flange connections. Welding makes it difficult to separate and maintain each section of the pipeline, while flange connections, although allowing for segmented maintenance, require draining the oil from the pipeline each time. Furthermore, during oil transport, deposits in the oil tend to accumulate on the inner wall of the pipeline, making them difficult to clean, potentially clogging valves and causing corrosion to the inner wall, thus shortening the pipeline's service life.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An easy-to-maintain oil pipeline connection assembly includes a first housing, a second housing fixedly installed on the rear side of the first housing, two gates slidably installed between the first housing and the second housing, and a connecting plate fixedly installed between the tops of the two gates.

[0007] Four sealing strips are fixedly installed on the arc-shaped inner walls at the left and right ends of the first housing and the second housing respectively. A first cover plate is fixedly installed between the top of the first housing and the second housing.

[0008] A filter assembly is installed between a first housing and a second housing and is used to filter the medium flowing within the first housing and the second housing.

[0009] An adjustment component is mounted on the first cover plate and is used to adjust the position of the gate.

[0010] Preferably, the filtering component includes:

[0011] Two mounting frames are slidably mounted on the lower inner walls of the first and second housings, and a filter screen is fixedly mounted between the two mounting frames. A handle is fixedly mounted on the front side of one of the mounting frames.

[0012] Preferably, the adjustment component includes:

[0013] A threaded rod is mounted on the first cover plate through and rotatably. The threaded rod is also threadedly connected to the connecting plate. A handwheel is fixedly mounted on the upper end of the threaded rod.

[0014] Preferably, a first adhesive groove is provided at the joint between adjacent sides of the first housing and the second housing.

[0015] Preferably, the inner walls at both ends of the first and second housings are provided with second adhesive grooves.

[0016] Preferably, a second cover plate is fixedly installed on the lower part of the front side of the first housing.

[0017] Preferably, a sealing frame is fixedly installed on the rear side of the second cover plate.

[0018] Preferably, two oil lines are connected between the first housing and the second housing, and the two oil lines are located at the left and right ends of the first housing, respectively.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. By installing filter components in the connection components of oil pipelines, sediment or other impurities in the oil are filtered out as it passes through the filter components, thereby reducing the accumulation of sediment or other impurities on the valves and inner walls of the pipeline.

[0021] Second, by opening a through hole on the front side of the first housing and sealing the through hole with a second cover plate and a sealing frame, it is convenient to clean and maintain the filter assembly.

[0022] Third, by rotating the handwheel, the threaded rod is driven to rotate, and then the connecting plate is driven to move downward through the threaded rod to control the descent of the two gates. During the descent, the two gates will gradually block the ports of the two oil pipelines, so that the oil in the oil pipelines does not need to be emptied, thus improving the efficiency of cleaning and maintaining the filter components. Attached Figure Description

[0023] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is an exploded view of the overall structure of this utility model;

[0026] Figure 3 This is a schematic diagram of the front housing in this utility model;

[0027] Figure 4 This is a schematic diagram of the regional structure of the gate in this utility model;

[0028] Figure 5 This is a schematic diagram of the filter assembly in this utility model;

[0029] Figure 6 This is an exploded view of the filter component in this utility model.

[0030] Legend: 1. Handwheel; 2. First cover plate; 3. First housing; 4. Second housing; 5. Second cover plate; 6. Oil pipeline; 7. Gate; 8. Sealing frame; 9. Sealing strip; 10. Mounting frame; 11. First sealing strip groove; 12. Threaded rod; 13. Connecting plate; 14. Filter screen; 15. Handle; 16. Second sealing strip groove. Detailed Implementation

[0031] This application provides an easy-to-maintain oil pipeline connection component, effectively solving the problems of conventional oil pipeline connections, which are typically made of welding or flanges. Welding makes it difficult to separate and maintain each section of the pipeline, while flange connections, although allowing for segmented maintenance, require draining the oil from the pipeline each time. Furthermore, during oil transport, deposits in the oil tend to accumulate on the inner wall of the pipeline, making them difficult to clean, potentially clogging valves and causing corrosion to the inner wall, thus shortening the pipeline's service life.

[0032] Example

[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the technical solution in this application effectively solves the problems that oil pipelines are generally connected by welding or flanges. Welding makes it difficult to separate and maintain each section of the pipeline, while flange connections, although allowing for segmented maintenance, require draining the oil from the pipeline each time. Furthermore, during oil transport, deposits in the oil tend to accumulate on the inner wall of the pipeline, making them difficult to clean, clogging valves and equipment, and corroding the inner wall, thus shortening the pipeline's service life. The overall approach is as follows:

[0034] To address the problems existing in the prior art, this utility model provides an easy-to-maintain oil pipeline connection assembly, including a first housing 3, a second housing 4 fixedly installed on the rear side of the first housing 3, two gate plates 7 slidably installed between the first housing 3 and the second housing 4, and a connecting plate 13 fixedly installed between the tops of the two gate plates 7.

[0035] Four sealing strips 9 are fixedly installed on the arc-shaped inner walls at the left and right ends of the first housing 3 and the second housing 4 respectively. A first cover plate 2 is fixedly installed between the top of the first housing 3 and the second housing 4.

[0036] A filter assembly is installed between the first housing 3 and the second housing 4 and is used to filter the medium flowing inside the first housing 3 and the second housing 4.

[0037] An adjustment component is installed on the first cover plate 2 and is used to adjust the position of the gate 7.

[0038] Furthermore, the filtering components include:

[0039] Two mounting frames 10 are slidably mounted on the lower inner walls of the first housing 3 and the second housing 4. A filter screen 14 is fixedly mounted between the two mounting frames 10. A handle 15 is fixedly mounted on the front side of one of the mounting frames 10.

[0040] Furthermore, the adjustment components include:

[0041] A threaded rod 12 is installed through and rotatably on the first cover plate 2. The threaded rod 12 is threaded through and connected to the connecting plate 13. A handwheel 1 is fixedly installed on the upper end of the threaded rod 12. The other end of the threaded rod 12 is inserted into the interior of the first housing 3 and the second housing 4.

[0042] Furthermore, a first adhesive groove 11 is provided at the joint of the first housing 3 and the second housing 4 on the adjacent side.

[0043] Furthermore, the inner walls at both ends of the first housing 3 and the second housing 4 are provided with second adhesive strip grooves 16, and the four sealing strips 9 are respectively located in the four second adhesive strip grooves 16.

[0044] Furthermore, a second cover plate 5 is fixedly installed on the lower part of the front side of the first housing 3, and the rear side wall of the second cover plate 5 contacts the handle 15.

[0045] Furthermore, a sealing frame 8 is fixedly installed on the rear side of the second cover plate 5, and the front end of the filter assembly is located inside the sealing frame 8.

[0046] Furthermore, two oil pipelines 6 are inserted between the first housing 3 and the second housing 4. The two oil pipelines 6 are located at the left and right ends of the first housing 3, respectively, and the opposite sides of the two gates 7 are flush with the end faces of the adjacent sides of the two oil pipelines 6.

[0047] in:

[0048] Handwheel 1: It is circular in shape and made of stainless steel;

[0049] First cover plate 2: It is a rectangular carbon steel plate. A sealing strip needs to be installed around the bottom where it meets the first housing 3. The sealing strip is made of polytetrafluoroethylene and is fixed to the first housing 3 by multiple bolts.

[0050] First housing 3: Made of carbon steel, with a semi-square tube in the middle and semi-circular tubes on both sides. The two are cast together as one piece and are connected inside. A through hole is opened on the front side of the middle part, so that the filter assembly can be inserted and removed from the front side for easy cleaning and maintenance of the filter assembly.

[0051] The second shell 4 is made of carbon steel, with a semi-square tube in the middle and semi-circular tubes on both sides. The two are cast together as one piece and are connected inside, forming a complete whole with the first shell 3.

[0052] The second cover plate 5 is a rectangular carbon steel plate, installed at the through hole on the front side of the first housing 3. A sealing strip needs to be installed around the joint with the first housing 3 to improve the sealing performance. The sealing strip is made of polytetrafluoroethylene.

[0053] Oil Pipeline 6: A steel pipe used for transporting oil;

[0054] Gate 7: It is a stainless steel square plate, installed vertically inside the semi-square tubular mechanism of the first housing 3 and the second housing 4, and located on both sides of the filter assembly.

[0055] Sealing frame 8: It is a square frame made of carbon steel and is cast as one piece with the second cover plate 5. A square frame-shaped rubber sealing strip is glued around the rear side of the sealing frame 8 to seal the gap between the front end of the filter assembly and the first housing 3.

[0056] Sealing strip 9: It is a semi-circular ring. The sealing strips 9 on the front and rear sides are fixed to the first housing 3 and the second housing 4 respectively by adhesive. The sealing strips 9 on the front and rear sides can form a complete ring.

[0057] Mounting frame 10: The whole is a square stainless steel metal plate with a round hole in the middle to facilitate the flow of oil, and stainless steel strips are welded on the top and bottom sides.

[0058] First rubber strip groove 11: It is formed at the joint between the first housing 3 and the second housing 4. A rubber strip is bonded inside the first housing 3 to seal the joint surface between the first housing 3 and the second housing 4.

[0059] Threaded rod 12: It is a stainless steel rod with trapezoidal threads on its surface. Its lower end abuts against the cylindrical groove formed by the first housing 3 and the second housing 4, and is used to adjust the position of the connecting plate 13.

[0060] Connecting plate 13: It is a stainless steel metal plate, installed horizontally, with both ends welded to the upper side of the two gate plates 7 respectively, and a threaded hole is opened in the middle. The specifications of the threaded hole are the same as those of the threaded rod 12.

[0061] Filter screen 14: It is a stainless steel filter screen, which is disc-shaped and has semi-circular metal locking lugs welded on all four sides. These lugs are used to insert and fix the bolts of the two mounting frames 10, so that the filter screen 14 can be fixed together when fixing the two mounting frames 10.

[0062] Handle 15: A U-shaped stainless steel block, which is fixed to one of the mounting frames 10 by welding, so as to facilitate the entire filter assembly being pulled out of the first housing 3;

[0063] The second rubber strip groove 16 is semi-arc-shaped and is used to install the sealing strip 9. Its thickness is smaller than that of the sealing strip 9, so that when the first housing 3 and the second housing 4 clamp the oil pipeline 6, the sealing strip 9 will be in an interference fit with the surface of the oil pipeline 6 to improve the sealing performance. It is formed on the semi-circular tubular inner wall of the first housing 3 and the second housing 4.

[0064] Working principle:

[0065] The first step is to install a filter assembly inside the first housing 3 and the second housing 4 so that impurities in the oil are filtered out when the oil passes through the through hole between the first housing 3 and the second housing 4.

[0066] The second step involves cleaning or replacing the filter screen 14 in the filter assembly. This can be done by rotating the handwheel 1, which in turn rotates the threaded rod 12. The threaded rod 12 then drives the connecting plate 13 downwards to control the two gates 7 to descend. During the descent, the two gates 7 gradually block the ports of the two oil pipelines 6, thus eliminating the need to drain the oil from the oil pipelines 6. Then, by loosening the bolts securing the second cover plate 5 to the first housing 3 and removing the second cover plate 5, the entire filter assembly can be pulled out by holding the handle 15. By loosening the bolts securing the two mounting frames 10, the filter screen 14 can be removed from between the two mounting frames 10, allowing for cleaning or replacement of the filter screen 14.

[0067] The third step involves loosening the bolts securing the first housing 3 and the second housing 4, allowing them to separate. Then, by loosening the bolts securing the first cover plate 2, the first cover plate 2 can be separated from the first housing 3 and the second housing 4. This allows the connecting assembly to be disassembled from the oil pipeline 6, enabling the cleaning and maintenance of the interior of the first housing 3 and the second housing 4.

[0068] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A maintenance-friendly oil pipeline connection assembly, characterized in that, include: A first housing (3) is fixedly installed on the rear side of the first housing (3), and two gates (7) are slidably installed between the first housing (3) and the second housing (4), and a connecting plate (13) is fixedly installed between the tops of the two gates (7); Four sealing strips (9) are fixedly installed on the arc-shaped inner walls at the left and right ends of the first housing (3) and the second housing (4), respectively. A first cover plate (2) is fixedly installed between the top of the first housing (3) and the second housing (4). A filter assembly is installed between a first housing (3) and a second housing (4) and is used to filter the medium flowing within the first housing (3) and the second housing (4); An adjustment component is mounted on the first cover plate (2) and is used to adjust the position of the gate (7).

2. The easy-to-maintain oil pipeline connection assembly as described in claim 1, characterized in that, The filtering component includes: Two mounting frames (10) are slidably mounted on the lower inner walls of the first housing (3) and the second housing (4). A filter screen (14) is fixedly mounted between the two mounting frames (10). A handle (15) is fixedly mounted on the front side of one of the mounting frames (10).

3. The easy-to-maintain oil pipeline connection assembly as described in claim 1, characterized in that, The adjustment component includes: A threaded rod (12) is installed through and rotatably on the first cover plate (2). The threaded rod (12) is threaded through and threadedly connected to the connecting plate (13). A handwheel (1) is fixedly installed at the upper end of the threaded rod (12). The other end of the threaded rod (12) is inserted into the interior of the first housing (3) and the second housing (4).

4. The easy-to-maintain oil pipeline connection assembly as described in claim 1, characterized in that: A first adhesive groove (11) is provided at the joint of the first housing (3) and the second housing (4) on the adjacent side.

5. The easy-to-maintain oil pipeline connection assembly as described in claim 1, characterized in that: The inner walls of the first housing (3) and the second housing (4) at both ends are provided with second adhesive strip grooves (16), and the four sealing strips (9) are respectively located in the four second adhesive strip grooves (16).

6. The easy-to-maintain oil pipeline connection assembly as described in claim 1, characterized in that: A second cover plate (5) is fixedly installed on the lower part of the front side of the first housing (3), and the rear side wall of the second cover plate (5) is in contact with the handle (15).

7. The easy-to-maintain oil pipeline connection assembly as described in claim 6, characterized in that: A sealing frame (8) is fixedly installed on the rear side of the second cover plate (5), and the front end of the filter assembly is located inside the sealing frame (8).

8. The easy-to-maintain oil pipeline connection assembly as described in claim 1, characterized in that: Two oil pipelines (6) are inserted between the first housing (3) and the second housing (4). The two oil pipelines (6) are located at the left and right ends of the first housing (3), respectively. The opposite side of the two gates (7) is flush with the end face of the adjacent side of the two oil pipelines (6).