Quick connecting device for dredging pipeline
The dredging pipeline connection device, which combines flexible contact and mechanical locking, solves the problems of difficult and leaky traditional flange connections, and achieves fast and stable pipeline connection, making it suitable for dredging projects in complex environments.
Patent Information
- Application Number
- CN202520570478.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-28
AI Technical Summary
The connection points of dredged pipelines require high-precision alignment, and traditional rigid flange connections are difficult to achieve and prone to leakage.
The male and female connectors are connected by a flexible abutment method, and the rubber sealing gasket is used to compensate for the mating error. The mechanical locking is achieved by the axial engagement of the annular flange and the groove. Combined with the guide slope for automatic alignment correction, the sealing performance and connection stability are enhanced.
It simplifies the pipe connection process, reduces installation accuracy requirements, prevents slurry leakage, improves connection efficiency and stability, and is suitable for rapid connection in complex environments.
Smart Images
Figure CN223938958U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to pipeline connection technical field especially dredging pipeline quick connecting device. BACKGROUND
[0002] Dredging engineering mainly dredges, widens or digs deep the earth and stone and mud of sea, river, lake and other water area and carries out the treatment of transport, and the dredging pipeline is a kind of equipment commonly used in dredging engineering, wherein, end face type flange steel pipe is mostly used in domestic dredging engineering.
[0003] It has the following technical problems: the connecting part of pipeline adopts flange hard connection, and it is necessary to make bolt and corresponding flange insertion hole correctly butt joint in the process of pipeline butt joint, and it needs higher butt joint accuracy, and due to the large quality of steel dredging pipeline, the butt joint process is difficult. UTILITY MODEL CONTENT
[0004] In view of the problems in the background art, the utility model discloses a dredging pipeline connecting device convenient for butt joint.
[0005] The utility model discloses a technical scheme: dredging pipeline quick connecting device, including male joint, female joint and rubber sealing pad, the male joint and the female joint are arranged at the end of dredging pipeline respectively, the male joint on different dredging pipelines is connected with the female joint through flexible abutment, and the rubber sealing pad is arranged between the abutment surface of male joint and female joint and is used for sealing between the male joint and the female joint.
[0006] Preferably, the outer periphery of the male joint is provided with an annular flange, the inner wall of the female joint is provided with an annular groove matched with the annular flange, and the annular flange and the annular groove realize flexible abutment through axial clamping.
[0007] Preferably, the inner wall of the annular groove is provided with a guide inclined surface, and the outer periphery of the annular flange is provided with an inclined surface matched with the guide inclined surface, for guiding the axial alignment of the male joint and the female joint.
[0008] Preferably, the rubber sealing pad is a double-layer structure, including a wear-resistant rubber layer of inner layer and an elastic compensation layer of outer layer, and the compression rate of the elastic compensation layer is greater than that of the wear-resistant rubber layer.
[0009] Preferably, the outer surface of the male joint and the female joint is coated with an anticorrosive coating, and the anticorrosive coating is an epoxy resin-based composite material.
[0010] Preferably, at least one limiting block is arranged between the abutment surfaces of the male joint and the female joint, and the limiting block is used to limit the relative rotation of the male joint and the female joint.
[0011] Preferably, the material of the male joint and the female joint is high-strength low-alloy steel.
[0012] Compared with the prior art, the present invention has the following beneficial technical effects:
[0013] By inserting the male connector into the female connector, their end faces abut against each other, and the rubber gasket is compressed to fill the gap, forming a seal. This reduces rigid constraints during dredged pipe connection, simplifies the installation process, and prevents leakage of contents (such as mud) flowing through the dredged pipe through the rubber gasket. The flexible abutment between the male and female connectors replaces the traditional rigid flange connection, utilizing the elastic deformation of the rubber gasket to compensate for connection errors and reduce installation accuracy requirements. The quick-connect device for dredged pipes allows for rapid extension of dredged pipes without stopping the dredging vessel during dredging operations. Attached Figure Description
[0014] Figure 1 This is a front view of the male connector and female connector after they are joined together in an embodiment of this utility model;
[0015] Figure 2 This is a front sectional view of the male connector in an embodiment of this utility model;
[0016] Figure 3 This is a front sectional view of the female connector in an embodiment of this utility model;
[0017] Figure 4 This is a front sectional view of the male connector and female connector after they are joined together in an embodiment of this utility model;
[0018] Figure 5 for Figure 4 Enlarged view of a portion of point A in the middle.
[0019] Figure label:
[0020] 1 is the male connector; 2 is the female connector; 3 is the rubber sealing gasket; 4 is the limiting block; 5 is the dredging pipe; 11 is the inclined surface; 21 is the guide inclined surface. Detailed Implementation
[0021] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0022] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "vertical", "horizontal", "inner", "outer", "front", "back", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.
[0023] like Figure 1 , Figure 4 and Figure 5 As shown, the dredging pipeline connection device proposed in this embodiment of the present invention includes a male connector 1, a female connector 2 and a rubber sealing gasket 3; the male connector 1 and the female connector 2 are respectively disposed at the ends of the dredging pipeline 5, and the male connector 1 and the female connector 2 on different dredging pipelines 5 are connected by a flexible abutment method, and the rubber sealing gasket 3 is disposed between the abutment surfaces of the male connector 1 and the female connector 2 to seal the male connector 1 and the female connector 2.
[0024] Insert the male connector 1 into the female connector 2, so that their end faces abut against each other. The rubber sealing gasket 3 is compressed and fills the gap, forming a seal. This reduces the rigid constraints when connecting the dredged pipe 5, simplifies the installation process, and prevents leakage of the contents (such as mud) flowing through the dredged pipe 5 through the rubber sealing gasket 3. The flexible abutment between the male connector 1 and the female connector 2 replaces the traditional rigid flange connection, and the elastic deformation of the rubber sealing gasket 3 compensates for the connection error, reducing the installation accuracy requirements.
[0025] like Figure 2 and Figure 3 As shown, the male connector 1 has an annular flange on its outer periphery, and the inner wall of the female connector 2 has an annular groove that matches the annular flange. The annular flange and the annular groove achieve flexible contact through axial engagement. The annular flange of the male connector 1 is pushed axially into the annular groove of the female connector 2, and the inner wall of the annular groove and the contact surface of the annular flange form a tight fit. This enhances the pull-out resistance after connection and prevents the dredging pipeline 5 from separating due to pressure fluctuations when transporting slurry. The annular flange of the male connector 1 and the annular groove of the female connector 2 achieve mechanical locking through axial engagement, and axial force is transmitted through geometric fit.
[0026] The inner wall of the annular groove is provided with a guide slope 21, and the outer periphery of the annular flange is provided with an inclined surface 11 adapted to the guide slope 21, for guiding the axial alignment of the male connector 1 and the female connector 2. An inclined angle, for example 15° to 30°, is machined on the contact surface between the annular flange and the annular groove. The alignment is automatically corrected by the guide slope 21 contacting the inclined surface 11. This improves docking efficiency and reduces the difficulty of manual adjustment, making it particularly suitable for underwater or complex environments. The guide slope 21 and the inclined surface 11 form a self-aligning guiding structure, utilizing the sliding of the slope to reduce lateral deviation during installation.
[0027] The rubber gasket 3 has a double-layer structure, consisting of an inner wear-resistant rubber layer and an outer elastic compensation layer. The compression ratio of the elastic compensation layer is greater than that of the wear-resistant rubber layer. It is formed by compounding and molding two rubber materials with different hardnesses; the inner layer is made of polyurethane rubber, and the outer layer is made of silicone rubber. This extends the gasket's lifespan while maintaining long-term sealing performance. In the double-layer rubber gasket, the inner wear-resistant rubber layer withstands mud erosion, while the outer elastic compensation layer adapts to joint deformation.
[0028] The outer surfaces of male connector 1 and female connector 2 are coated with an anti-corrosion coating, which is an epoxy resin-based composite material. The surfaces of the male and female connectors are sandblasted, then coated with epoxy resin and cured at high temperature. This improves the connectors' resistance to seawater and mud corrosion, extending the service life of the equipment. The epoxy resin coating bonds to the metal surface, forming a dense protective layer that isolates corrosive media.
[0029] At least one limiting block 4 is provided between the contact surfaces of the male connector 1 and the female connector 2. The limiting block 4 is used to restrict the relative rotation of the male connector 1 and the female connector 2.
[0030] A steel limiting block, bolted or welded, is installed circumferentially on the mating surfaces of male connector 1 and female connector 2 to enhance connection stability and is suitable for dynamic loads or vibration conditions. The limiting block mechanically restricts the relative rotation of the male and female connectors, preventing seal failure due to external torsion.
[0031] Both male connector 1 and female connector 2 are made of high-strength low-alloy steel. The connector body is cast from HSLA steel, and the inner wall is coated with an alumina ceramic layer using a thermal spraying process. The high-strength low-alloy steel provides high load-bearing capacity, improving the overall strength and wear resistance of the connector.
[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" 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, a direct connection, or an indirect connection through an intermediate medium. Those skilled in the art will understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0033] The above specific embodiments are merely one or more preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.
Claims
1. A quick connection device for dredged pipelines, characterized in that, It includes a male connector, a female connector, and a rubber sealing gasket; the male connector and the female connector are respectively disposed at the ends of the dredging pipeline, and the male connector and the female connector on different dredging pipelines are connected by a flexible abutment method, and the rubber sealing gasket is disposed between the abutment surfaces of the male connector and the female connector to seal between the male connector and the female connector; The male connector has an annular flange on its outer periphery, and the female connector has an annular groove on its inner wall that matches the annular flange. The annular flange and the annular groove achieve flexible contact through axial engagement. The inner wall of the annular groove is provided with a guide slope, and the outer periphery of the annular flange is provided with an inclined surface adapted to the guide slope, which is used to guide the axial alignment of the male connector and the female connector.
2. The quick connection device for dredged pipelines according to claim 1, characterized in that, The rubber sealing gasket has a double-layer structure, including an inner wear-resistant rubber layer and an outer elastic compensation layer. The compression ratio of the elastic compensation layer is greater than that of the wear-resistant rubber layer.
3. The quick connection device for dredged pipelines according to claim 1, characterized in that, The outer surfaces of the male and female connectors are coated with an anti-corrosion coating, which is an epoxy resin-based composite material.
4. The quick connection device for dredged pipelines according to claim 1, characterized in that, At least one limiting block is provided between the mating surfaces of the male connector and the female connector, and the limiting block is used to restrict the relative rotation of the male connector and the female connector.
5. The quick connection device for dredged pipelines according to claim 1, characterized in that, The male and female connectors are made of high-strength low-alloy steel.