Subsea pipeline connection seal clamp for easy installation

By designing a sealing clamp for easy fixing of subsea pipeline connections, and utilizing a combination of preliminary positioning components and bolt components, the problem of cumbersome sealing operations at traditional subsea pipeline connections has been solved, achieving rapid connection and stable sealing, and improving the maintenance efficiency of subsea pipelines.

CN224301483UActive Publication Date: 2026-05-29SHANGHAI COMM CENT DONGHAI MARITIME SUPPORT CENT MINISTRY OF TRANSPORT +1
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Patent Information

Application Number
CN202521226925.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-16
Publication Date
2026-05-29
Estimated Expiration
2035-06-16

AI Technical Summary

Technical Problem

The sealing operation at the connection of traditional submarine pipelines is cumbersome and not convenient for quick inspection and maintenance.

Method used

A sealing clamp for easy fixing of subsea pipeline connections was designed. By combining the use of a preliminary positioning component and a bolt component, rapid connection and stable sealing can be achieved.

Benefits of technology

It improved the sealing performance and connection reliability of submarine pipeline joints, shortened maintenance time, and simplified the operation process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of seabed pipeline connection sealing clamps of being convenient for fixed, including clamping body, the one side of the clamping body is fixedly connected with upside fixed plate and downside fixed plate, the surface of upside fixed plate and downside fixed plate is equipped with preliminary connection groove, the surface of preliminary connection groove is movably connected with preliminary positioning assembly, preliminary positioning assembly includes positioning box, the one side of the inner wall of positioning box is fixedly connected with isolating plate, the utility model relates to pipeline technical field.The seabed pipeline connection sealing clamps of being convenient for fixed, staff seals when clamping body, directly inserts preliminary positioning assembly into preliminary connection groove, can first limit upside fixed plate and downside fixed plate within certain range, then fast rotating clamping plate, can quickly connect upside fixed plate and downside fixed plate with fixed type, and the relevant structure of preliminary positioning assembly is very simple, and operation logic is clear and reliable.
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Description

Technical Field

[0001] This utility model relates to the field of pipeline technology, specifically to a sealing clamp for easy fixing of submarine pipeline connections. Background Technology

[0002] A pipeline is a system of pipes, pipe fittings, and valves used to transport gases, liquids, or fluids containing solid particles. Typically, fluids are pressurized by blowers, compressors, pumps, and boilers, flowing from high-pressure areas to low-pressure areas within the pipeline. Alternatively, the fluid's own pressure or gravity can be used for transport. Pipelines have a wide range of applications, primarily in water supply, drainage, heating, gas supply, long-distance transport of oil and natural gas, agricultural irrigation, hydraulic engineering, and various industrial installations. Pipeline transportation offers advantages such as large capacity, continuous operation, speed, economy, safety, reliability, stability, low investment, small footprint, low cost, and the ability to achieve automatic control. Besides its widespread use in long-distance transport of oil and natural gas, it can also transport ores, coal, building materials, chemicals, and grains.

[0003] With rapid economic development, more and more materials such as natural gas, water and oil are being transported through pipelines, leading to an increase in the total amount of pipelines in use. In particular, many pipelines are subsea pipelines. The land portion of subsea pipelines is subjected to special stresses such as waves, tides, beach erosion, and thermal expansion and contraction. During pipeline use, the joints need to be sealed. Traditional sealing operations are too cumbersome and not convenient for quick inspection and maintenance. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a sealing clamp for easy fixing of submarine pipeline connections, solving the problem that traditional sealing operations are too cumbersome and inconvenient for quick inspection and maintenance when sealing the connection points of pipelines is required during use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sealing clamp for easy fixing of a submarine pipeline connection, comprising a clamp body, an upper fixing plate and a lower fixing plate fixedly connected to one side of the clamp body, a preliminary connection groove formed on the surface of the upper and lower fixing plates, a preliminary positioning component movably connected to the surface of the preliminary connection groove, the preliminary positioning component comprising a positioning box, an isolation plate fixedly connected to one side of the inner wall of the positioning box, an arc-shaped elastic plate fixedly connected to one side of the isolation plate, a protruding plate fixedly connected to one side of the arc-shaped elastic plate, a positioning block fixedly connected to one end of the positioning box, a screw rod rotatably connected to the surface of the positioning block, a clamping plate fixedly connected to one end of the screw rod, a rubber pad movably connected to the inner surface of the clamp body, a toothed groove formed on the surface of the rubber pad, three bolt assemblies penetrating the surfaces of the upper and lower fixing plates, each bolt assembly comprising a bolt rod, a reinforcing rib provided on the surface of the bolt rod, and a horizontal buckle fixedly connected to one end of the bolt rod.

[0006] Preferably, the surface of the bolt rod is threaded with a nut, and the surface of the nut is chrome-plated.

[0007] Preferably, the surfaces of the upper fixing plate and the lower fixing plate are provided with closed grooves, and the inner surface of the closed grooves is provided with static friction textures.

[0008] Preferably, the inner surface of the closed groove is movably connected with a connecting bending strip, and the connecting bending strip is made of stainless steel.

[0009] Preferably, the bottom of the upper fixing plate is provided with a positioning groove, and the inner surface of the positioning groove is made of iron.

[0010] Preferably, a positioning clip is fixedly connected to the top of the lower fixing plate, and the surface of the positioning clip is magnetic.

[0011] Beneficial effects

[0012] This invention provides a sealing clamp for easy fixing of subsea pipeline connections. Compared with the prior art, it has the following advantages:

[0013] (1) The easy-to-fix submarine pipeline connection sealing clamp has an upper fixing plate and a lower fixing plate fixedly connected to one side of the clamp body. The surfaces of the upper and lower fixing plates have preliminary connection grooves. A preliminary positioning component is movably connected to the surface of the preliminary connection groove. The preliminary positioning component includes a positioning box. An isolation plate is fixedly connected to one side of the inner wall of the positioning box. An arc-shaped elastic plate is fixedly connected to one side of the isolation plate. A protruding plate is fixedly connected to one side of the arc-shaped elastic plate. A positioning block is fixedly connected to one end of the positioning box. A screw rod is rotatably connected to the surface of the positioning block. A clamping plate is fixedly connected to one end of the screw rod. The inner surface of the clamp body is movably connected to the positioning box. The moving connection has a rubber pad with a toothed groove on its surface. With the setting of the preliminary positioning component, when the operator seals the clamp body, the preliminary positioning component is directly inserted into the preliminary connection groove. This first restricts the upper and lower fixing plates within a certain range. Then, the clamping plate is quickly rotated to quickly connect and fix the upper and lower fixing plates. The structure of the preliminary positioning component is very simple, and the operating logic is clear and reliable. Through the combined setting of the rubber pad and the toothed groove, the clamp can further seal the internal pipe joints, effectively preventing gas and liquid from leaking from the pipe joints and improving the pipe sealing performance.

[0014] (2) This easy-to-fix submarine pipeline connection sealing clamp has three bolt assemblies penetrating through the surfaces of the upper and lower fixing plates. Each bolt assembly includes a bolt shank with reinforcing ribs on its surface. One end of the bolt shank is fixedly connected to a horizontal buckle, and a nut is threaded onto its surface. The nut is chrome-plated. The surfaces of the upper and lower fixing plates have closed grooves with static friction textures on their inner surfaces. A connecting bending strip, made of stainless steel, is movably connected to the inner surface of the closed groove. A positioning groove is located at the bottom of the upper fixing plate, and the inner surface of the positioning groove is made of stainless steel. Made of iron, the top of the lower fixing plate is fixedly connected with a positioning clip. The surface of the positioning clip is magnetic. Through the setting of the bolt assembly, the operator can stably rotate the nut to stably connect the upper and lower fixing plates together. Furthermore, through the combined setting of the closed groove and the connecting bending strip, it can ensure that the edge of the clamp is stably clamped, improving the overall sealing performance of the clamp. The combined setting of the positioning groove and the positioning clip can quickly determine the basic position of the upper and lower fixing plates during the initial connection, improving the reliability of the clamp connection and shortening the alignment time of the upper and lower fixing plates. Attached Figure Description

[0015] Figure 1 This is the front view of the present invention;

[0016] Figure 2 This is a schematic diagram of the preliminary positioning component structure of this utility model;

[0017] Figure 3This is a schematic diagram of the bolt assembly structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the rubber pad structure of this utility model.

[0019] In the diagram: 1. Clamp body; 2. Upper fixing plate; 3. Lower fixing plate; 4. Preliminary connecting groove; 5. Preliminary positioning assembly; 51. Positioning box; 52. Isolation plate; 53. Arc-shaped elastic plate; 54. Protruding plate; 55. Positioning block; 56. Screw rod; 57. Clamping plate; 6. Bolt assembly; 61. Bolt rod; 62. Horizontal buckle; 63. Nut; 7. Enclosed groove; 8. Connecting bending strip; 9. Positioning groove; 10. Positioning clip; 11. Rubber pad; 12. Toothed groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 This utility model provides a technical solution: a sealing clamp for easy fixing of a submarine pipeline connection, including a clamp body 1. An upper fixing plate 2 and a lower fixing plate 3 are fixedly connected to one side of the clamp body 1. A preliminary connection groove 4 is formed on the surface of the upper fixing plate 2 and the lower fixing plate 3. A preliminary positioning component 5 is movably connected to the surface of the preliminary connection groove 4. The preliminary positioning component 5 includes a positioning box 51. An isolation plate 52 is fixedly connected to one side of the inner wall of the positioning box 51. An arc-shaped elastic plate 53 is fixedly connected to one side of the isolation plate 52. A protruding plate 54 is fixedly connected to one side of the arc-shaped elastic plate 53. A positioning block 55 is fixedly connected to one end of the positioning box 51. A screw rod 56 is rotatably connected to the surface of the positioning block 55. One end of the screw rod 56 is fixedly connected to... The clamping plate 57 and the inner surface of the clamp body 1 are movably connected to a rubber pad 11. The surface of the rubber pad 11 is provided with a toothed groove 12. With the setting of the preliminary positioning component 5, when the operator seals the clamp body 1, the preliminary positioning component 5 is directly inserted into the preliminary connection groove 4. This can first restrict the upper fixing plate 2 and the lower fixing plate 3 within a certain range. Then, by quickly rotating the clamping plate 57, the upper fixing plate 2 and the lower fixing plate 3 can be quickly connected and shaped. The relevant structure of the preliminary positioning component 5 is very simple, and the operating logic is clear and reliable. Through the combined setting of the rubber pad 11 and the toothed groove 12, the clamp can further seal the internal pipe joint, effectively preventing gas and liquid from leaking from the pipe joint and improving the pipe sealing performance.

[0022] Three bolt assemblies 6 penetrate the surfaces of the upper fixing plate 2 and the lower fixing plate 3. Each bolt assembly 6 includes a bolt shank 61 with reinforcing ribs on its surface. A horizontal buckle 62 is fixedly connected to one end of the bolt shank 61, and a nut 63 is threaded onto its surface. The nut 63 is chrome-plated. A closed groove 7 is formed on the surfaces of the upper fixing plate 2 and the lower fixing plate 3. The inner surface of the closed groove 7 has static friction textures, and a connecting bending strip 8, made of stainless steel, is movably connected to the inner surface of the closed groove 7. A positioning groove 9 is formed at the bottom of the upper fixing plate 2, with its inner surface made of iron. The lower fixing plate... A positioning clip 10 is fixedly connected to the top of plate 3. The surface of the positioning clip 10 is magnetic. With the setting of bolt assembly 6, the operator can stably rotate nut 63 to stably connect the upper fixing plate 2 and the lower fixing plate 3 together. With the combined setting of the sealing groove 7 and the connecting bending strip 8, the edge of the clamp can be stably clamped, improving the overall sealing performance of the clamp. With the combined setting of positioning groove 9 and positioning clip 10, the basic position of the upper fixing plate 2 and the lower fixing plate 3 can be quickly determined during the initial connection, improving the reliability of the clamp connection and shortening the alignment time of the upper fixing plate 2 and the lower fixing plate 3.

[0023] The relevant pipelines are installed in near-shore shallow sea areas. This application is aimed at the surface (land) or beach transition area of ​​the submarine pipeline. When operating near-shore, the staff wear safety clothing.

[0024] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0025] During operation, the two ends of the rubber pad 11 are interlocked with the toothed grooves 12 to be tested. The rubber pad 11 is then rolled into a circle and inserted into the inner surface of the clamp body 1. The pipe connection is placed into the inner surface of the rubber pad 11. The upper fixing plate 2 and the lower fixing plate 3 are closed. The positioning clamp head 10 is connected to the positioning groove 9. The connecting bending strip 8 is inserted into the closed groove 7. The protruding plate 54 is pressed inward, and the arc-shaped elastic plate 53 is pressed in the same way. The top of the positioning box 51 passes through the lower fixing plate 3 and the upper fixing plate 2. Then, the arc-shaped elastic plate 53 pushes the protruding plate 54 out of the positioning box 51. Open and pull down the positioning box 51. The protruding plate 54 is pressed tightly against the top of the upper fixing plate 2. Rotate the clamping plate 57 and the screw rod 56 moves into the positioning block 55 until the top of the clamping plate 57 is in close contact with the surface of the lower fixing plate 3. Insert the bolt rod 61 through the upper fixing plate 2 and the lower fixing plate 3. Push the horizontal buckle 62 to the surface of the upper fixing plate 2. Rotate the nut 63 to make the nut 63 in close contact with the surface of the lower fixing plate 3. The upper fixing plate 2 and the lower fixing plate 3 are pressed and fixed. After the operation is completed, restore the device to its original state after use.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sealing clamp for easy fixing of subsea pipeline connections, comprising a clamp body (1), characterized in that: One side of the clamp body (1) is fixedly connected to an upper fixing plate (2) and a lower fixing plate (3). The surfaces of the upper fixing plate (2) and the lower fixing plate (3) are provided with preliminary connection grooves (4). A preliminary positioning assembly (5) is movably connected to the surface of the preliminary connection grooves (4). The preliminary positioning assembly (5) includes a positioning box (51). One side of the inner wall of the positioning box (51) is fixedly connected to an isolation plate (52). One side of the isolation plate (52) is fixedly connected to an arc-shaped elastic plate (53). One side of the arc-shaped elastic plate (53) is fixedly connected to a protruding plate (54). The positioning box (51)... A positioning block (55) is fixedly connected to one end, and a screw rod (56) is rotatably connected to the surface of the positioning block (55). A clamping plate (57) is fixedly connected to one end of the screw rod (56). A rubber pad (11) is movably connected to the inner surface of the clamp body (1). The surface of the rubber pad (11) is provided with a toothed groove (12). Three bolt assemblies (6) penetrate the surfaces of the upper fixing plate (2) and the lower fixing plate (3). The bolt assembly (6) includes a bolt rod (61). The surface of the bolt rod (61) is provided with reinforcing ribs. A horizontal buckle (62) is fixedly connected to one end of the bolt rod (61).

2. The easy-to-fix submarine pipeline connection sealing clamp according to claim 1, characterized in that: The surface of the bolt rod (61) is threaded with a nut (63), and the surface of the nut (63) is chrome plated.

3. The easy-to-fix subsea pipeline connection sealing clamp according to claim 1, characterized in that: The upper fixing plate (2) and the lower fixing plate (3) are provided with closed grooves (7), and the inner surface of the closed grooves (7) is provided with static friction texture.

4. The easy-to-fix submarine pipeline connection sealing clamp according to claim 3, characterized in that: The inner surface of the closed groove (7) is movably connected with a connecting bending strip (8), which is made of stainless steel.

5. The easy-to-fix subsea pipeline connection sealing clamp according to claim 1, characterized in that: The bottom of the upper fixing plate (2) is provided with a positioning groove (9), and the inner surface of the positioning groove (9) is made of iron.

6. The easy-to-fix subsea pipeline connection sealing clamp according to claim 1, characterized in that: The top of the lower fixing plate (3) is fixedly connected to a positioning clip (10), and the surface of the positioning clip (10) is magnetic.