Integrated joint for composite hose and composite hose

Abstract

The utility model provides an integrated splicer for a composite hose, which is integrally forged and formed and comprises a stepped flange part, a sealing part connected to the flange part and a connecting part connected to the sealing part, a plurality of annular sealing grooves are formed in the periphery of the sealing part, and due to the arrangement of the sealing grooves, the sealing colloid and the inner pipe structure of the composite hose have higher connection and form and position stability when the sealing colloid is formed; a double-line thread groove is formed in the periphery of the connecting part, the thread pitch of the double-line thread groove is matched with the distance between spring framework steel wires on the inner layer of the composite hose, the spring framework steel wires on the inner layer of the hose can be just screwed into double-line threads, and the contact area between the connector and the flexible hose body part of the composite hose is increased; after the flexible hose body part of the composite hose is assembled with the joint, the composite hose is firmer, and the joint is not easy to fall off; according to the integrated connector, the leakage problem caused by poor welding is avoided, welding detection is not needed when the integrated connector is used on a ship, and manpower and material resources can be saved.

Description

Technical Field

[0001] The utility model relates to an integrated joint machine composite hose for a composite hose. Background Art

[0002] The composite hose for transporting LNG (liquefied natural gas) is a specially designed hose, which usually includes an inner layer made of low-temperature resistant and corrosion-resistant materials, a reinforcement layer made of stainless steel spiral wire or other high-strength materials, and an outer layer made of wear-resistant and weather-resistant materials; and metal joints are set at both ends. Its joints are usually welded by three accessories: inner spiral pipe, outer steel ring and flange. Since the inner spiral pipe and flange are welded by butt welding, there will be a risk of leakage at the welding point between the inner spiral pipe and the outer steel ring when transporting LNG, which will cause waste and safety hazards during loading and unloading; and the welded parts of marine pipelines need to pass the inspection before they can be used on board, so each batch of joints needs to be inspected, which is time-consuming and labor-intensive. Utility Model Content

[0003] In view of this, the purpose of the present invention is to provide an integrated joint machine composite hose for a composite hose to solve the above problems.

[0004] The utility model adopts the following scheme:

[0005] The present application provides an integrated connector for a composite hose, the connector being integrally forged and comprising a stepped flange portion, a sealing portion connected to the flange portion, and a connecting portion connected to the sealing portion; a plurality of annular sealing grooves are arranged on the outer periphery of the sealing portion; a double-line thread groove is arranged on the outer periphery of the connecting portion, and the pitch of the double-line thread groove matches the pitch of the spring skeleton steel wire of the inner layer of the composite hose.

[0006] Furthermore, the material of the joint is SS316L.

[0007] Furthermore, the sealing groove is a V-shaped groove.

[0008] The present application also provides a composite hose, including the integrated joint, the joint is connected to the two ends of the composite hose, the spring skeleton steel wire of the inner layer of the composite hose is screwed into the double-wire thread groove; the sealing part is coated with sealant and connected to the inner layer of the composite hose.

[0009] Furthermore, it also includes a steel wire wound around the outer layer of the composite hose, which is used to tighten the connection between the composite hose and the connector.

[0010] By adopting the above technical solution, the utility model can achieve the following technical effects:

[0011] The present application provides an integrated connector for a composite hose, which is formed by integrated forging and includes a stepped flange portion, a sealing portion connected to the flange portion, and a connecting portion connected to the sealing portion; a plurality of annular sealing grooves are arranged on the outer periphery of the sealing portion, and the arrangement of the sealing grooves enables the sealing colloid to have a stronger connection and form and position stability with the inner tube structure of the composite hose during molding; and a double-line thread groove is arranged on the outer periphery of the connecting portion, and its pitch matches the pitch of the spring skeleton steel wire of the inner layer of the composite hose, and the spring skeleton steel wire of the inner layer of the hose can just be screwed into the double-line thread, thereby increasing the contact area between the connector and the flexible tube body portion of the composite hose, so that the flexible tube body portion of the composite hose and the connector will be more firm after assembly, and the connector is not easy to fall out; the integrated connector avoids leakage problems caused by poor welding, and does not need to pass welding detection when used on board, which can save some manpower and material resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 This is a schematic diagram of a cross-sectional structure of an integrated joint for a composite hose according to an embodiment of the utility model;

[0014] Icon: connecting part 1, sealing part 2, flange part 3, sealing groove 4, double-line thread groove 5. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0016] Example

[0017] Combination Figure 1 As shown, this embodiment provides an integrated connector for a composite hose, the connector is forged as a whole, and includes a stepped flange portion 3, a sealing portion 2 connected to the flange portion 3, and a connecting portion 1 connected to the sealing portion 2; a plurality of annular sealing grooves 4 are arranged on the outer periphery of the sealing portion 2; a double-line thread groove 5 is arranged on the outer periphery of the connecting portion 1, and its pitch matches the pitch of the spring skeleton steel wire of the inner layer of the composite hose.

[0018] The invention adopts an integral forging molding, and comprises a stepped flange portion 3, a sealing portion 2 connected to the flange portion 3, and a connecting portion 1 connected to the sealing portion 2; a plurality of annular sealing grooves 4 are arranged on the outer periphery of the sealing portion 2, and the arrangement of the sealing grooves 4 enables the sealing colloid to have a stronger connection and form and position stability with the inner tube structure of the composite hose during molding; and a double-line thread groove 5 is arranged on the outer periphery of the connecting portion 1, and its pitch matches the pitch of the spring skeleton steel wire of the inner layer of the composite hose, and the spring skeleton steel wire of the inner layer of the hose can just be screwed into the double-line thread, thereby increasing the contact area between the joint and the flexible pipe body of the composite hose, so that the flexible pipe body of the composite hose and the joint will be more firm after being assembled, and the joint is not easy to fall out; the integrated joint avoids leakage problems caused by poor welding, and does not need to pass welding detection when used on board, which can save part of manpower and material resources.

[0019] Specifically, in this embodiment, the material of the joint is SS316L. The sealing groove 4 is a V-shaped groove, which improves the bonding adhesion between the sealant and the inner tube of the composite tube, so that the sealant has a stronger connection and shape and position stability with the inner tube structure of the composite hose during molding.

[0020] The present application also provides a composite hose, including the one-piece joint, the joint is connected to the two ends of the composite hose, the spring skeleton steel wire of the inner layer of the composite hose is screwed into the double-wire thread groove 5; the sealing part 2 is coated with a sealant and connected to the inner layer of the composite hose. The composite tube is also wrapped with a steel wire, which is placed on the outside of the connecting part 1 and / or the sealing part 2 of the joint, and is used to tighten the connection between the composite hose and the joint. Through the setting of the one-piece joint, the composite hose does not need to pass the welding inspection when used on board, which saves a part of manpower and material resources, and also avoids leakage problems caused by poor welding.

[0021] The above are only preferred implementations of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All technical solutions under the concept of the present utility model belong to the protection scope of the present utility model.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it 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 the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

Claims

1. An integrated connector for a composite hose, characterized in that: The joint is forged in one piece and includes a stepped flange portion, a sealing portion connected to the flange portion, and a connecting portion connected to the sealing portion; a plurality of annular sealing grooves are arranged on the outer periphery of the sealing portion; a double-line thread groove is arranged on the outer periphery of the connecting portion, and the pitch of the double-line thread groove matches the pitch of the spring skeleton steel wire of the inner layer of the composite hose.

2. The one-piece connector for a composite hose according to claim 1, characterized in that: The material of the joint is SS316L.

3. The one-piece connector for a composite hose according to claim 1, characterized in that: The sealing groove is a V-shaped groove.

4. A composite hose, characterized in that: It comprises an integrated connector as described in any one of claims 1 to 3, wherein the connector is connected to both ends of the composite hose, and the spring skeleton steel wire of the inner layer of the composite hose is screwed into the double-wire thread groove; the sealing part is coated with sealant and connected to the inner layer of the composite hose.

5. The composite hose according to claim 4, characterized in that: It also includes a steel wire wound around the outer layer of the composite hose, which is used to fasten the connection between the composite hose and the connector.

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