Quick-release leak-proof connectors for marine pipelines
By combining threaded rods and tapered plugs with sealing blocks and ferrules, the problem of difficult-to-seal leaks in ship pipelines is solved, achieving effective sealing and stable support for pipelines of different inner diameters and in different damage states.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA SATELLITE MARITIME MEASUREMENT & CONTROL DEPT
- Filing Date
- 2025-09-15
- Publication Date
- 2026-07-31
AI Technical Summary
Existing marine pipelines are prone to leakage at flange connections, welds, or weak points, resulting in poor sealing performance, especially on irregularly damaged surfaces where effective sealing is difficult.
It adopts a threaded rod and tapered plug structure, combined with sealing block, ferrule and adjusting sleeve, to achieve adjustable sealing through multiple sets of clamping and support structures, adapting to pipes with different inner diameters, and providing secondary support after sealing.
It achieves effective sealing of pipes with different inner diameters, enhances the stability and sealing effect of the leak plugging, and is adaptable to pipes in different damage states.
Smart Images
Figure CN224579986U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ship leak sealing, and in particular to a quick leak sealing connector for ship pipelines. Background Technology
[0002] As the core carrier of power transmission, oil delivery, and cooling circulation, the sealing reliability of marine pipeline systems directly affects ship safety and operational efficiency. Currently, due to long-term exposure to seawater corrosion, mechanical vibration, and temperature fluctuations, marine pipelines are prone to leaks at flange connections, welds, or weak points in the pipe walls, seriously threatening the safety of ship operation. Therefore, the primary solution for pipeline leaks or ruptures is to seal the broken or leaking pipeline with plugs.
[0003] Currently, ships have a wide variety of pipe sizes, and a single leak-sealing structure is difficult to completely seal when it is suitable. Of course, leak-sealing plates with soft edges can also be used for sealing, but the surface of the pipe after the damage and leakage is in an irregular cracked state. The leak-sealing plate cannot completely seal the irregular damaged surface when it comes into contact with it, and the overall leak-sealing effect is very poor. Utility Model Content
[0004] In order to solve the problems in the background art, this utility model adopts the following technical solution: A quick-connecting leak-proof connector for marine pipelines includes a threaded rod and a conical plug inserted into the pipeline. A sealing block is fixedly connected to the outside of the conical plug. One side of the threaded rod has an insertion port, and a threaded pin extending into the inner cavity of the threaded rod is movably inserted into the outside of the insertion port. An adjusting sleeve is rotatably fitted on the outside of the insertion port, and the adjusting sleeve is threaded onto the outside of the threaded pin. A first retaining sleeve is fixedly connected to the outer end of the threaded pin, and a second retaining sleeve is movably fitted on the outside of the threaded rod. Both the first and second retaining sleeves have multiple sets of annular slots on their outer sides that engage with the outside of the pipeline. The other end of the threaded rod is fixedly connected to two sets of bent retaining blocks that engage with the sealing block.
[0005] Preferably, a limiting pin is fixedly connected to the inner wall of the insertion interface, and a limiting groove is provided laterally on the outer side of the threaded pin, and the limiting pin is slidably engaged in the limiting groove.
[0006] Preferably, the sealing block abuts against the inner wall of the pipe, and the contact surfaces of the sealing block, the annular groove, and the pipe are provided with sealing gaskets.
[0007] Preferably, the outer side of the sealing block is provided with two sets of slots, and the inner wall of the sealing block is also provided with a sliding groove communicating with the slots.
[0008] Preferably, the bending block is inserted into the slot, and the bending block is slidably engaged in the slot.
[0009] Preferably, the threaded rod is provided with a rotating sleeve on its outer threaded sleeve, and the rotating sleeve is rotatably connected to the outer side of the second sleeve through a bearing.
[0010] Compared with the prior art, the present invention has the following beneficial effects; This utility model can selectively assemble different conical plugs to match pipes with different inner diameters for leak sealing. After the leak sealing is completed, a second ferrule can be adjusted to achieve secondary sealing. At the same time, the other end of the threaded rod is provided with a first ferrule to engage with the other side of the broken pipe or to abut against the wall, thereby supporting the entire leak sealing joint and ensuring the stability of the overall support during the leak sealing process. The overall leak sealing effect is very good. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a side view of the interface structure of this utility model; Figure 3 This is a side view of the card sleeve structure of this utility model; Figure 4 This is a side view of the sealing block structure of this utility model.
[0012] In the diagram: 1-threaded rod, 2-insertion interface, 201-limiting pin, 3-adjusting sleeve, 4-threaded pin, 401-limiting groove, 5-first ferrule, 6-second ferrule, 601-rotating sleeve, 602-bearing, 7-annular groove, 8-conical plug, 9-sealing block, 901-groove, 902-slide groove, 10-bent block. Detailed Implementation
[0013] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component 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.
[0014] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.
[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0017] Reference Figure 1-4 A quick-connecting leak-proof connector for marine pipelines includes a threaded rod 1 and a conical plug 8 inserted into the pipeline. A sealing block 9 is fixedly connected to the outside of the conical plug 8. A insertion port 2 is provided on one side of the threaded rod 1. A threaded pin 4 extending into the inner cavity of the threaded rod 1 is movably inserted into the outside of the insertion port 2. An adjusting sleeve 3 is rotatably sleeved on the outside of the insertion port 2, and the adjusting sleeve 3 is threadedly sleeved on the outside of the threaded pin 4. A first retaining sleeve 5 is fixedly connected to the outer end of the threaded pin 4. A second retaining sleeve 6 is movably sleeved on the outside of the threaded rod 1. Multiple sets of annular grooves 7 are provided on the outside of the first retaining sleeve 5 and the second retaining sleeve 6, which are engaged with the outside of the pipeline. The sealing block 9 abuts against the inner wall of the pipeline, and the sealing block 9 and the annular grooves... A sealing gasket is provided on the contact surface with the pipe. Two sets of bent locking blocks 10 are fixedly connected to the other end of the threaded rod 1 and are engaged with the sealing block 9. Among them, a limiting pin 201 is fixedly connected to the inner wall of the insertion interface 2, and a limiting groove 401 is provided laterally on the outer side of the threaded pin 4. The limiting pin 201 is slidably engaged in the limiting groove 401. Two sets of locking grooves 901 are provided on the outer side of the sealing block 9. The inner wall of the sealing block 9 is also provided with a sliding groove 902 that communicates with the locking groove 901. The bent locking block 10 is inserted into the locking groove 901 and slidably engaged in the sliding groove 902. A rotating sleeve 601 is threadedly sleeved on the outer side of the threaded rod 1, and the rotating sleeve 601 is rotatably connected to the outer side of the second locking sleeve 6 through a bearing.
[0018] Based on the above structural design, when using this device, the operator needs to select different tapered plugs 8 according to pipes with different inner diameters. After selection, the bending block 10 at the front end of the threaded rod 1 is inserted into the groove 901 on the outer side of the sealing block 9 on the outer side of the sealing plug 8. Then, the bending block 10 is rotated. At this time, the outer side of the bending block 10 slides in the sliding groove 902, thereby completing the connection between the sealing plug 8 and the threaded rod 1. Subsequently, the worker holds the tapered threaded rod 1 in one hand and inserts the tapered plug 8 into the leaking pipe. The tapered structure of the tapered plug 8 reduces resistance during insertion. As the tapered plug 8 is inserted, the sealing block 9 on the outside of the tapered plug 8 also blocks and abuts against the matching pipe interior to achieve a seal. Even so, the liquid in the pipe still has a certain impact force. Therefore, the worker rotates the adjusting sleeve 3, which drives the threaded pin 4. Because the limiting groove 401 on the outside of the threaded pin 4 is engaged with the limiting block 201 on the inner wall of the insertion interface 2, the adjusting sleeve 3 will then... The threaded pin 4 moves laterally in the insertion interface 2, causing the outer first ferrule 5 to abut against the outside. If it is a broken pipe, this device is set between two broken pipes. At this time, the annular groove 7 on the outer side of the first ferrule 5 engages with and abuts against the other side of the broken pipe, supporting the conical plug 8. At the same time, the operator also needs to rotate and adjust the rotating sleeve 601. The rotating sleeve 601 rotates and moves threadedly on the outside of the threaded rod 1, thereby driving the second ferrule 6 to move. The annular groove 7 on the outer side of the second ferrule 6 engages with one side of the broken pipe to achieve a reinforced seal and improve the sealing effect.
[0019] It should be added that the annular grooves 7 on the outer sides of the first ferrule 5 and the second ferrule 6 are provided in multiple sets, which can be matched with different pipes for clamping and sealing.
[0020] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.
[0021] In the description of this utility model, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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.
Claims
1. A quick leak-proof joint for a pipeline of a ship, comprising a threaded rod (1) and a conical plug (8) inserted into the pipeline, the conical plug (8) being fixedly connected with a sealing block (9) on the outside, characterized in that, A plug-in interface (2) is provided on one side of the threaded rod (1). A threaded pin (4) extending into the inner cavity of the threaded rod (1) is movably inserted into the outside of the plug-in interface (2). An adjusting sleeve (3) is rotatably sleeved on the outside of the plug-in interface (2), and the adjusting sleeve (3) is threadedly sleeved on the outside of the threaded pin (4). A first retaining sleeve (5) is fixedly connected to the outer end of the threaded pin (4). A second retaining sleeve (6) is movably sleeved on the outside of the threaded rod (1). Multiple sets of annular slots (7) that are snapped onto the outside of the pipe are provided on the outside of the first retaining sleeve (5) and the second retaining sleeve (6). Two sets of bent retaining blocks (10) that are snapped onto the sealing block (9) are fixedly connected to the other end of the threaded rod (1).
2. A ship pipe leak-preventing quick plugging joint according to claim 1, characterized in that, The inner wall of the insertion interface (2) is fixedly connected with a limiting pin (201), and the outer side of the threaded pin (4) is provided with a limiting groove (401), and the limiting pin (201) is slidably engaged in the limiting groove (401).
3. A ship pipe leak-proof quick plugging joint according to claim 2, characterized in that, The sealing block (9) abuts against the inner wall of the pipe, and the sealing block (9), the annular groove (7) and the contact surface of the pipe are provided with sealing gaskets.
4. A ship pipe leak-preventing quick plugging joint according to claim 3, characterized in that, The outer side of the sealing block (9) is provided with two sets of slots (901), and the inner wall of the sealing block (9) is also provided with a sliding groove (902) that communicates with the slots (901).
5. A ship pipe leak-proof quick plugging joint according to claim 4, characterized in that, The bending block (10) is inserted into the slot (901), and the bending block (10) is slidably engaged in the slot (902).
6. A ship pipe leak-preventing quick plugging joint according to claim 5, characterized in that, The threaded rod (1) is threaded with a rotating sleeve (601) on the outside, and the rotating sleeve (601) is rotatably connected to the outside of the second sleeve (6) through a bearing.