A split seal pipe coupling

CN224622440UActive Publication Date: 2026-08-11DAQING BAOHE PETROLEUM TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-02
Publication Date
2026-08-11

AI Technical Summary

Technical Problem

但是上述装置,设置需要直管接头直径大于出水管,液体由小直径管输送到大直径管,流速突然降低,杂质等物质可能因流速低于临界值而析出沉积;反之大管径输送到小管径的突缩结构可能因流速升高导致杂质颗粒对管道内壁的冲刷磨损加剧

Benefits of technology

[0011] The detachable sealing pipe fitting proposed in this utility model has the following advantages: Through the cooperation of the insertion mechanism and the first and second mounting plates, the insert on the second pipe body is inserted into the insertion hole on the first pipe body. After the insert is inserted into the insertion hole, the inner cavities of the first and second pipe bodies fit together. Then, the operator passes the bolt through the threaded hole on the first and second mounting plates. The bolt is fitted with a washer, which makes the fixation more stable. Then, two screws are tightened onto the bolt, and the first and second pipe bodies will press against the second sealing gasket. When the first and second pipe bodies are pressed against the second sealing gasket, the installation of the first and second pipe bodies is achieved. Because the insertion hole and the insert on the insertion mechanism are both machined on the outer wall of the first and second pipe bodies, the inner wall diameter will not be affected during the fit, ensuring that the inner wall diameter is consistent and reducing problems caused by different diameters during oil transportation.

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Abstract

This utility model relates to the field of oil transportation technology, and in particular to a detachable sealed piping connector, comprising a first pipe body and a second pipe body. A first mounting plate and a second mounting plate are respectively fixedly connected to the outer walls of the first and second pipe bodies, and the first and second mounting plates are connected by bolts and threads. The first and second pipe bodies are provided with insertion mechanisms, and the outer walls of both the first and second pipe bodies are sealed to a first sealing gasket. This detachable sealed piping connector, through the cooperation of the insertion mechanism and the first and second mounting plates, enables the installation of the first and second pipe bodies. Because the insertion holes and inserts on the insertion mechanism are machined on the outer walls of the first and second pipe bodies, the inner wall diameter is not affected during the fit, ensuring consistent inner wall diameter and reducing problems caused by diameter discrepancies during oil transportation.
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Description

Technical Field

[0001] This utility model relates to the field of oil transportation technology, specifically a detachable sealed pipe fitting. Background Technology

[0002] Split-type pipe fittings are components used for pipe connections. Their core feature is that they enable quick connection and disassembly of pipes through a "split" structure. They are widely used in industrial, mechanical, and hydraulic systems.

[0003] For example, a detachable pipe connector with announcement number "CN210439393U" features a detachable filter element that effectively solves pipe blockage and is easy to replace and clean. The combination of a snap-fit ​​and elastic plate, along with the reinforcement and fixing blocks, provides double locking to the pipe, improving installation stability and preventing pipe detachment. A dirt-blocking layer prevents oil and sediment buildup, increasing pipe lifespan to some extent. However, this device requires a straight pipe connector diameter larger than the outlet pipe. When liquid is transported from a small-diameter pipe to a large-diameter pipe, the sudden decrease in flow velocity can cause impurities to precipitate and deposit due to the flow velocity falling below a critical value. Conversely, the abrupt contraction from a large-diameter pipe to a small-diameter pipe can lead to increased flow velocity, exacerbating the erosion and wear of the pipe's inner wall by impurities. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the above-mentioned device requires a straight pipe joint with a diameter larger than the outlet pipe. When liquid is transported from a small-diameter pipe to a large-diameter pipe, the flow rate suddenly decreases, and impurities and other substances may precipitate and deposit due to the flow rate falling below the critical value. Conversely, the sudden contraction structure of transporting liquid from a large-diameter pipe to a small-diameter pipe may cause the impurity particles to aggravate the scouring and wear of the inner wall of the pipe due to the increased flow rate. Therefore, a detachable sealed pipe joint is proposed.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A detachable sealing pipe fitting is designed, comprising a first pipe body and a second pipe body. The outer walls of the first pipe body and the second pipe body are respectively fixedly connected to a first mounting plate and a second mounting plate. The first mounting plate and the second mounting plate are connected by bolt threads. The first pipe body and the second pipe body are provided with insertion mechanisms. The outer walls of the first pipe body and the second pipe body are both sealed to a first sealing gasket.

[0006] Preferably, the first sealing gasket is fixedly connected to the inner wall of the sealing sleeve, and the two sealing sleeves are connected by bolt threads.

[0007] Preferably, the insertion mechanism includes an insertion tube and a second sealing gasket, and the right end of the outer wall of the insertion tube is fixedly connected to the second tube body.

[0008] Preferably, the inner wall of the second sealing gasket is fitted with an insertion tube.

[0009] Preferably, the outer wall of the second sealing gasket is fixedly connected to the second tube body, and the outer wall of the second sealing gasket abuts against the first tube body.

[0010] Preferably, the outer wall of the insertion tube is inserted into the insertion hole, which is machined on the top of the first tube body.

[0011] The detachable sealing pipe fitting proposed in this utility model has the following advantages: Through the cooperation of the insertion mechanism and the first and second mounting plates, the insert on the second pipe body is inserted into the insertion hole on the first pipe body. After the insert is inserted into the insertion hole, the inner cavities of the first and second pipe bodies fit together. Then, the operator passes the bolt through the threaded hole on the first and second mounting plates. The bolt is fitted with a washer, which makes the fixation more stable. Then, two screws are tightened onto the bolt, and the first and second pipe bodies will press against the second sealing gasket. When the first and second pipe bodies are pressed against the second sealing gasket, the installation of the first and second pipe bodies is achieved. Because the insertion hole and the insert on the insertion mechanism are both machined on the outer wall of the first and second pipe bodies, the inner wall diameter will not be affected during the fit, ensuring that the inner wall diameter is consistent and reducing problems caused by different diameters during oil transportation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 Front view; Figure 3 for Figure 1 Front sectional view; Figure 4 This is a partial front sectional view of the first tube. Figure 5 This is a partial front sectional view of the second tube. Figure 6 for Figure 3 Schematic diagram of part A in the middle.

[0013] In the figure: 1. First tube body, 2. Second tube body, 3. First mounting plate, 4. Second mounting plate, 5. Sealing sleeve, 6. Insertion mechanism, 601. Insertion tube, 602. Second sealing gasket, 603. Insertion hole, 7. First sealing gasket. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings: See attached document Figure 1-6 : In this embodiment, a detachable sealing pipe fitting includes a first pipe body 1 and a second pipe body 2. The outer walls of the first pipe body 1 and the second pipe body 2 are respectively fixedly connected to a first mounting plate 3 and a second mounting plate 4. The first mounting plate 3 and the second mounting plate 4 are connected by bolts and threads. Fixing the first mounting plate 3 and the second mounting plate 4 fixes the first pipe body 1 and the second pipe body 2. The first tube 1 and the second tube 2 are provided with a plug-in mechanism 6. The outer walls of the first tube 1 and the second tube 2 are sealed to the first sealing gasket 7. The first sealing gasket 7 can prevent leakage. The first sealing gasket 7 is fixedly connected to the inner wall of the sealing sleeve 5. The two sealing sleeves 5 are connected by bolt threads.

[0015] See attached document Figure 1-6 : The insertion mechanism 6 includes an insertion tube 601 and a second sealing gasket 602. The right end of the outer wall of the insertion tube 601 is fixedly connected to the second tube body 2. The inner wall of the second sealing gasket 602 is fitted with the insertion tube 601, and the outer wall of the second sealing gasket 602 is fixedly connected to the second tube body 2. The outer wall of the second sealing gasket 602 abuts against the first tube 1. The second sealing gasket 602 ensures the sealing of the connection between the first tube 1 and the second tube 2. The outer wall of the insertion tube 601 is inserted into the insertion hole 603. After the insertion tube 601 is inserted into the insertion hole 603, the first tube 1 and the second tube 2 are aligned. The insertion hole 603 is machined on the top of the first tube 1.

[0016] Working principle: When installing oil pipelines.

[0017] Installation process: The workers align the first pipe body 1 and the second pipe body 2 (both ends of the first pipe body 1 and the second pipe body 2 are respectively machined with insert tubes 601 and insertion holes 603 for easy connection), insert the insert tube 601 on the second pipe body 2 into the insertion hole 603 on the first pipe body 1. After the insert tube 601 is inserted into the insertion hole 603, the inner cavities of the first pipe body 1 and the second pipe body 2 fit together, which can realize the transportation of oil. Then, two sealing sleeves 5 are put between the connection of the first pipe body 1 and the second pipe body 2. The workers then pass the bolts through the threaded holes on the first mounting plate 3 and the second mounting plate 4. The bolts are fitted with washers to make the fixation more stable. Then, the two screws are screwed onto the bolts. As the nuts are tightened, the first tube 1 and the second tube 2 are brought closer and closer. As a result, the first tube 1 and the second tube 2 will squeeze the second sealing gasket 602. The second sealing gasket 602 is made of rubber and has elasticity. When the first tube 1 and the second tube 2 are pressed against the second sealing gasket 602, the nuts are stopped from being tightened. At this time, the second sealing gasket 602 can ensure the sealing of the connection between the first tube 1 and the second tube 2, thus realizing the installation of the first tube 1 and the second tube 2. Then, the bolts are inserted into the threaded holes on the sealing sleeve 5 and tightened with nuts, so that the first sealing gasket 7 on the sealing sleeve 5 presses against the connection between the first tube body 1 and the second tube body 2, which strengthens the connection and further ensures its sealing performance, thus completing the installation of the first tube body 1 and the second tube body 2. Since the first tube body 1 and the second tube body 2 are connected by the insertion tube 601 and the insertion hole 603, and both the insertion hole 603 and the insertion tube 601 are machined on the outer wall of the first tube body 1 and the second tube body 2, the inner wall diameter will not be affected during the connection, ensuring that the inner wall diameter is consistent. The working principle during disassembly is the opposite of the above, and will not be described in detail again.

[0018] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A detachable sealing pipe fitting, comprising a first pipe body (1) and a second pipe body (2), characterized in that: The outer walls of the first tube (1) and the second tube (2) are respectively fixedly connected to a first mounting plate (3) and a second mounting plate (4). The first mounting plate (3) and the second mounting plate (4) are connected by bolt threads. The first tube (1) and the second tube (2) are provided with a plug-in mechanism (6). The outer walls of the first tube (1) and the second tube (2) are sealed to the first sealing gasket (7).

2. The detachable sealing pipe fitting according to claim 1, characterized in that: The first sealing gasket (7) is fixedly connected to the inner wall of the sealing sleeve (5), and the two sealing sleeves (5) are connected by bolt threads.

3. The detachable sealing pipe fitting according to claim 1, characterized in that: The insertion mechanism (6) includes an insertion tube (601) and a second sealing gasket (602), and the right end of the outer wall of the insertion tube (601) is fixedly connected to the second tube body (2).

4. The detachable sealing pipe fitting according to claim 3, characterized in that: The inner wall of the second sealing gasket (602) is fitted with a cannula (601).

5. The detachable sealing pipe fitting according to claim 4, characterized in that: The outer wall of the second sealing gasket (602) is fixedly connected to the second tube body (2), and the outer wall of the second sealing gasket (602) abuts against the first tube body (1).

6. The detachable sealing pipe fitting according to claim 3, characterized in that: The outer wall of the insertion tube (601) is inserted into the insertion hole (603), which is machined on the top of the first tube body (1).

Citation Information

Patent Citations

  • Split type pipe joint

    CN210439393U