Ultrahigh-pressure integrally vulcanized flexible hose for ocean engineering

Abstract

The invention discloses an ultrahigh-pressure integrally vulcanized flexible hose for ocean engineering, and relates to the technical field of high-pressure hoses, the ultrahigh-pressure integrally vulcanized flexible hose comprises a joint and a hose body, the inner wall of the joint is provided with a positioning space for positioning the hose body and a reinforcing space for preventing the hose body from being separated from the joint, and the hose body is provided with a positioning section and a reinforcing section; the positioning section is located in the positioning space, and a first medium is filled between the positioning space and the positioning section; the reinforcing section is located in the reinforcing space, and the space between the reinforcing space and the reinforcing section is filled with a second medium. By means of the structural design, the pipe body and the connector can be fused, vulcanized and crosslinked into a whole, meanwhile, by arranging the reinforcing space, the reinforcing section of the pipe body can be designed in a diversified mode, and therefore the reinforcing section can be firmly embedded in the connector in cooperation with the second medium. And by adopting a non-traditional buckling and pressing type connection mode, the device can work under ultrahigh pressure, and the risk of overpressure damage does not need to be worried about.

Description

Technical Field

[0001] This invention relates to the field of high-pressure hose technology, and more specifically, to ultra-high pressure integrated vulcanized flexible hoses for marine engineering. Background Technology

[0002] In the oil and gas transportation sector of the oil and gas industry, conventional oil and gas transportation hoses have a relatively simple structure, typically consisting of an inner rubber layer, a pressure-bearing steel wire rope layer, and an outer rubber layer. The connection between the connector and the pipe body often employs crimping, compression, or internal expansion methods. The core principle of all these methods is to use a crimping machine to deform the metal connector, thereby creating a compression fit between the rubber layer and the steel wire rope layer of the hose. The compression deformation force of the metal connector engages the reinforcing steel wire and the inner rubber lining, thus achieving a fixed connection between the connector and the pipe body.

[0003] The above connection method can meet basic usage requirements in fluid delivery scenarios with pressures below 35 MPa. This is because the hose wall is relatively thin at this pressure level, the number of steel wire layers in the hose structure is small, and the compression and interlocking of the metal joints can form an effective fixation. However, when the fluid pressure exceeds 34.5 MPa (5000 PSI), especially reaching ultra-high pressure conditions of 69 MPa (10000 PSI), 103.5 MPa (15000 PSI), and even 138 MPa (20000 PSI), the hose needs to be wound with more layers and thicker steel wires to increase its pressure-bearing capacity, resulting in a significant increase in hose wall thickness. At this time, the traditional crimp connection method exposes many intractable drawbacks and safety risks: 1. Prominent steel wire stress problem: Excessive crimping pressure will cause the steel wire of the pipe to bear excessive stress, and may even cause the pressure-bearing steel wire to break; even if the crimping pressure is controlled within the normal range, the squeezing and biting stress of the crimping joint on the pressure-bearing skeleton steel wire cannot be eliminated, which directly causes a significant decrease in the safety of the connection between the joint and the hose, and is prone to serious accidents such as pipe bursting and joint detachment under high pressure.

[0004] 2. Poor reliability of rubber seals: During the crimping process, the rubber layer is subjected to excessive stress, and the compressed rubber is prone to stress creep, which leads to seal failure and leakage. At the same time, under ultra-high pressure conditions, the rubber is very prone to compression deformation, which causes a drop in sealing pressure, further aggravating the risk of media leakage and making it impossible to ensure the smooth completion of the transportation task.

[0005] 3. Flow transmission is affected: The inner diameter of the pipe head in the crimped structure differs from the inner diameter of the pipe body, creating a necking effect at the pipe head, which directly hinders the flow of the medium and affects the transmission flow rate.

[0006] With the rapid development of the oil and gas industry, offshore and onshore oil and gas exploration and extraction operations are gradually moving towards deeper and more demanding working environments. The requirements for working pressure and transportation efficiency are continuously increasing, and supporting production equipment is being upgraded accordingly. This places a core demand on oil and gas transportation hoses—they must withstand higher working pressures while also meeting the requirements for transporting large volumes of media through increased pipe diameter. Existing pipe and fitting connection methods, such as crimp-type connections, are no longer adequate for these ultra-high-pressure working environments.

[0007] Therefore, how to achieve a reliable, stable, and long-life safe connection between the connector and the pipe body in high-pressure or ultra-high-pressure working environments has become the core technical problem that this application urgently needs to solve. Summary of the Invention

[0008] The summary section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. The summary section of this invention is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0009] To at least partially solve the above problems, the present invention provides an ultra-high pressure integrated vulcanized flexible hose for marine engineering, comprising: a connector and a tube body, wherein the inner wall of the connector has a positioning space for positioning the tube body and a reinforcement space for preventing the tube body from separating from the connector, and the tube body has a positioning section and a reinforcement section. The positioning segment is located within the positioning space, and a first medium is filled between the positioning space and the positioning segment. The reinforced section is located within the reinforced space, and a second medium is filled between the reinforced space and the reinforced section.

[0010] Preferably, the positioning space includes a first positioning groove disposed on the inner wall of the connector, wherein the inner diameter b of the first positioning groove is greater than the inner diameter a of the connector.

[0011] Preferably, the positioning space includes a second positioning groove disposed on the inner wall of the joint, the inner diameter c of the second positioning groove being larger than the inner diameter b of the first positioning groove, the second positioning groove being located between the first positioning groove and the reinforcement space, the joint being provided with a first hole communicating with the second positioning groove, and the space between the second positioning groove and the positioning segment being filled with a first medium.

[0012] Preferably, the reinforcement space includes a first reinforcement groove disposed on the inner wall of the joint, wherein the inner diameter of the first reinforcement groove is larger than the inner diameter c of the second positioning groove; The reinforcement section includes a first reinforcement section, wherein the outer diameter D of the first reinforcement section on the side closer to the positioning section is greater than the outer diameter E on the side farther from the positioning section; The connector is provided with a second hole, which communicates with the first reinforcing groove. The space between the first reinforced section and the first reinforced groove is filled with a second medium.

[0013] Preferably, the inner diameter d of the first reinforcing groove on the side closer to the second positioning groove is greater than the inner diameter e on the side farther from the second positioning groove, and the inner diameter e of the first reinforcing groove on the side farther from the second positioning groove is greater than the inner diameter c of the second positioning groove.

[0014] Preferably, the reinforcement space includes a second reinforcement groove disposed on the inner wall of the joint, wherein the inner diameter of the second reinforcement groove is larger than the inner diameter of the first reinforcement groove; The reinforcement section includes a second reinforcement section, and the first reinforcement section is located between the positioning section and the second reinforcement section. The outer diameter F of the second reinforcement section on the side closer to the first reinforcement section is greater than the outer diameter G on the side farther from the first reinforcement section. The second reinforcement groove is connected to the first reinforcement groove; The space between the second reinforcement section and the second reinforcement groove is filled with a second medium.

[0015] Preferably, the inner diameter f of the second reinforcing groove on the side closer to the first reinforcing groove is greater than the inner diameter g on the side farther from the first reinforcing groove.

[0016] Preferably, the inner diameter g of the second reinforcing groove on the side away from the first reinforcing groove is greater than the inner diameter d of the first reinforcing groove on the side closer to the second positioning groove.

[0017] Preferably, the inner wall of the first reinforcing groove has a first reinforcing structure for increasing the contact area with the second medium; And / or the inner wall of the second reinforcing groove has a second reinforcing structure for increasing the contact area with the second medium.

[0018] Preferably, the first reinforcing section is provided with a first adjusting member for changing the outer diameter of the first reinforcing section; And / or the second reinforcing section is provided with a second adjusting member for changing the outer diameter of the second reinforcing section.

[0019] Preferably, the inner wall of the second positioning groove is provided with a third positioning groove, the inner diameter h of the third positioning groove is greater than the inner diameter c of the second positioning groove and less than the inner diameter of the first reinforcing groove, the third positioning groove is located between the second positioning groove and the first reinforcing groove, and the side of the first adjusting member near the positioning section is located in the third positioning groove.

[0020] Compared with the prior art, the present invention has at least the following beneficial effects: The above structural design allows the pipe body and connector to be fused and cross-linked together through vulcanization (e.g., resin curing and rubber vulcanization). Simultaneously, the inclusion of a reinforcement space allows for diverse design options for the reinforcement section of the pipe body, ensuring the reinforcement section is securely embedded within the connector in conjunction with the second medium. By employing a non-traditional crimp-type connection method, this application can operate under ultra-high pressure without the risk of overpressure damage.

[0021] The ultra-high pressure integrated vulcanized flexible hose for marine engineering described in this invention, along with other advantages, objectives, and features of this invention, will be partly apparent from the following description and partly understood by those skilled in the art through study and practice of the invention. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of the ultra-high pressure integrated vulcanized flexible hose for marine engineering described in this invention.

[0023] Figure 2 This is a cross-sectional view of the ultra-high pressure integrated vulcanized flexible hose for marine engineering described in this invention (without the second adjustment component).

[0024] Figure 3 This is a partial sectional view when setting up the second adjustment component.

[0025] Figure 4 for Figure 2 A cross-sectional view of the joint.

[0026] Figure 5 for Figure 2 A schematic diagram of the reinforced section.

[0027] Figure 6 This is a schematic diagram of one embodiment of the first reinforcing structure and the second reinforcing structure.

[0028] Figure 7 This is a schematic diagram of one embodiment of the first reinforcing structure.

[0029] Figure 8 This is a cross-sectional structural diagram of one embodiment of the first reinforcing structure.

[0030] In the figure: 1 Connector, 11 First Hole, 12 Second Hole, 2 Pipe Body, 3 Positioning Section, 4 First Medium, 5 Second Medium, 6 First Reinforcing Section, 7 Second Reinforcing Section, 8 First Reinforcing Structure, 9 Second Reinforcing Structure, 101 First Adjusting Component, 102 Second Adjusting Component, 111 First Engaging Tooth, 112 Second Engaging Tooth, 121 First Engaging Groove, 122 Second Engaging Groove. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments, so that those skilled in the art can implement it based on the description.

[0032] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0033] like Figures 1-8 As shown, the present invention provides an ultra-high pressure integrated vulcanized flexible hose for marine engineering, comprising: a connector 1 and a tube body 2. The structure of the tube body 2 is divided according to its different functions, including but not limited to the innermost layer, the medium-resistant layer, the pressure-bearing skeleton layer, the heat insulation layer and the flame-retardant layer from the inside to the outside. The above layers are vulcanized and cross-linked into an integrated structure.

[0034] The innermost structure of tube 2 can take many forms, such as a spiral metal liner made of stainless steel or carbon steel, rubber, stainless steel inner armor, plastic, or a combination of stainless steel inner armor and plastic, to provide internal support for tube 2.

[0035] The dielectric-resistant layer covers the outer surface of the innermost structure and typically consists of a first fabric layer, an inner rubber layer, and a second fabric layer, all vulcanized and cross-linked together. The first fabric layer usually consists of 1-8 layers, the inner rubber layer is 2-10 mm thick, and the second fabric layer consists of 1-8 layers. The inner rubber layer is usually made from high-quality synthetic rubber as the main formulation to meet the dielectric resistance requirements under high-pressure, sealed conditions.

[0036] The pressure-bearing skeleton layer is vulcanized and cross-linked on the outer surface of the media-resistant layer. The pressure-bearing skeleton layer includes a pressure-bearing steel wire rope layer and an adhesive intermediate layer. An adhesive intermediate layer is bonded to the inner surface of the innermost pressure-bearing steel wire rope layer, the outer surface of the outermost pressure-bearing steel wire rope layer, and between adjacent pressure-bearing steel wire rope layers. Typically, there are 3-9 layers of adhesive intermediate layer and 2-8 layers of pressure-bearing steel wire rope layer. The pressure-bearing steel wire rope layer usually uses high-strength steel wire rope with a diameter of ф2mm-ф6mm as the skeleton material, with multiple layers cross-wound. It should be noted that the pressure-bearing steel wire rope layer is not limited to steel wire rope; it can be steel wire or steel wire cord, or aramid or carbon fiber composite winding. Depending on the pressure and inner diameter of the hose, there are at least 2 layers and a maximum of 14 layers.

[0037] To reduce the deformation of the hose under high pressure, a cord layer can be set in the adhesive layer during bonding. The cord layer is usually 2-14 layers with a diameter of ф0.5mm-ф4mm, and is made of binding steel wire cords wound at a large angle.

[0038] The insulation layer is vulcanized and cross-linked on the outer surface of the pressure-bearing skeleton layer. The insulation layer includes a third fabric layer, an adhesive intermediate layer (containing the layer of binding pressure-bearing steel wire rope), and a fourth fabric layer. The third and fourth fabric layers are 2-10 layers each, and the adhesive intermediate layer is 2-10 mm thick. It should be noted that rubber should be applied to the surface of all four fabric layers so that the layers of the pipe can be cross-linked into a unified structure through vulcanization.

[0039] The flame-retardant layer is vulcanized and cross-linked on the outer surface of the insulation layer. The flame-retardant layer includes a steel wire cord layer and a fire-resistant outer adhesive layer, with the steel wire cord layer located inside the fire-resistant outer adhesive layer. The thickness of the fire-resistant outer adhesive layer is 2-10 mm.

[0040] The inner wall of the connector 1 has a positioning space for positioning the tube body 2. During assembly of the connector 1 and the tube body 2, the positioning space is used to define the position of the tube body 2. The inner wall of the connector 1 also has a reinforcing space to prevent the tube body 2 from separating from the connector 1. When the tube body 2 is inserted into the connector 1, it passes through the reinforcing space and enters the positioning space. The end of the tube body 2 has a positioning section 3 and a reinforcing section. The tube body 2 is connected to the connector 1 through the positioning section 3 and the reinforcing section. The positioning section 3 is usually cross-linked with the tube body 2 using a first medium 4. The reinforcing section can usually be directly formed from the tube body 2. A positioning ring is provided on the positioning section 3. Figure 3 and Figure 5 As shown, the positioning ring is located on the side of the positioning section 3 near the reinforcement section and abuts against the reinforcement section. The positioning ring can position the pipe body 2 in the radial direction, prevent the pipe body 2 and the connector 1 from being misaligned when the first medium 4 is filled into the positioning space, and avoid the first medium 4 from overflowing into the reinforcement space area. The positioning segment 3 is located within the positioning space, and the positioning space and the positioning segment 3 are filled with a first medium 4 to achieve a sealing and filling effect. The reinforced section is located within the reinforced space, and the space between the reinforced section and the reinforced section is filled with a second medium 5.

[0041] When assembling the connector 1 and the tube body 2, the connector 1 is fitted onto the mandrel of the tube body 2 and slid along the mandrel to mate the connector 1 with the tube body 2. When the tube body 2 mates with the connector 1, the positioning section 3 and the positioning ring of the tube body 2 will enter the positioning space. The positioning space can limit the position of the tube body 2 in the axial and radial directions. Then, the connector 1 is fixed on the mandrel to prevent the connector 1 and the tube body 2 from having relative displacement in the axial direction. Then, the positioning space is filled with the first medium 4. Usually, the first medium 4 is uncured compound rubber. Uncured compound rubber has extremely strong plasticity and can fully fill the positioning space after the position of the tube body 2 and the connector 1 is adjusted, and can be vulcanized and cross-linked with the tube body.

[0042] To further maintain the firmness of the connection between connector 1 and pipe body 2, a second medium 5, typically resin, is filled into the reinforcement space. Through the structural design of the reinforcement section, after the second medium 5 is formed, the reinforcement section can be fixed in the reinforcement space like a wedge. In addition to filling the second medium 5, the reinforcement space can also provide space for the design of different reinforcement sections.

[0043] Through the above structural design, the tube body 2 and the connector 1 can be fused and vulcanized (e.g., through resin curing and rubber vulcanization) to form a single unit. Simultaneously, by providing a reinforcing space, the reinforcing section of the tube body 2 can be designed in various ways, thus ensuring that the reinforcing section is firmly embedded within the connector 1 in conjunction with the second medium 5. By employing a non-traditional crimp-type connection method, this application can operate under ultra-high pressure without the risk of overpressure damage.

[0044] Furthermore, the positioning space includes a first positioning groove disposed on the inner wall of the connector 1, wherein the inner diameter b of the first positioning groove is greater than the inner diameter a of the connector 1. Typically, the first positioning groove is an annular groove disposed circumferentially along the inner wall of the connector 1, and b > a, such that the first positioning groove can form a first end face on the inner wall of the connector 1 that abuts against the positioning section 3. When assembling the pipe body 2 and the connector 1, the end of the positioning section 3 can abut against this first end face, thereby making the connector 1 and the pipe body 2 axially positionally defined.

[0045] Furthermore, the positioning section 3 is tubular, and the inner diameter of the first positioning groove is adapted to the outer diameter of the positioning section 3. When the positioning section 3 is inserted into the first positioning groove, the inner wall of the first positioning groove can limit the position of the positioning section 3, thereby making the connector 1 and the tube body 2 form a position limit in the radial direction.

[0046] When only the first positioning groove is provided, the connector 1 is provided with a first hole, which is connected to the first positioning groove. The first positioning groove and the positioning section 3 are in clearance fit. The first hole can be set as a threaded hole, and the position of the positioning section 3 can be adjusted by screws, thereby avoiding the situation of the tube body 2 being eccentric. At the same time, the clearance fit can reserve a certain filling space for filling the first medium 4.

[0047] It should be noted that in order to smoothly adjust the relative position of the tube body 2 on the connector 1, an additional threaded correction hole can be provided on the connector 1, and a screw can be installed in the correction hole.

[0048] Furthermore, the positioning space includes a second positioning groove disposed on the inner wall of the connector 1. The inner diameter c of the second positioning groove is larger than the inner diameter b of the first positioning groove. Typically, the second positioning groove is connected to the first positioning groove. The second positioning groove is located between the first positioning groove and the reinforcement space. The connector 1 is provided with a first hole 11, which is connected to the second positioning groove. The number of first holes 11 varies depending on the diameter of the hose connector. For example, the number of first holes 11 for hose connectors of different diameters can be 4-12. The space between the second positioning groove and the positioning section 3 is filled with a first medium 4. The inner diameter c of the second positioning groove can be slightly larger than the outer diameter of the positioning section 3 to reserve filling space for the first medium 4.

[0049] Furthermore, during the vulcanization and cross-linking process of the first medium 4 and the positioning section 3, the first medium 4 overflows into the reinforcement space, causing the reinforcement space to be occupied. This significantly reduces the pull-out resistance between the joint 1 and the pipe body 2, which is a common technical problem in the prior art. To solve this problem, the outer diameter of the positioning ring is adapted to the inner diameter of the second positioning groove. When the pipe body 2 and the joint 1 are assembled, the positioning ring is located in the second positioning groove, and the outer wall of the positioning ring abuts against the inner wall of the second positioning groove, thereby limiting the position of the pipe body 2 in the radial direction. At the same time, the end of the positioning ring near the reinforcement section abuts against the end face of the reinforcement section. Through the above structural design, during the vulcanization and cross-linking process of the first medium 4 and the positioning section 3, the positioning ring can block the first medium 4, thereby preventing the first medium 4 from overflowing into the reinforcement space. Therefore, the positioning ring has an anti-overflow effect.

[0050] Furthermore, the length of the positioning ring can cover the first hole 11, so that when the first hole 11 is a threaded hole, it can be connected to the positioning ring by a screw, thereby adjusting the relative position of the tube body 2 on the connector 1 by the screw.

[0051] Furthermore, the reinforcement space includes a first reinforcement groove disposed on the inner wall of the joint 1, wherein the inner diameter of the first reinforcement groove is larger than the inner diameter c of the second positioning groove; The reinforcement section includes a first reinforcement section 6, wherein the outer diameter D of the first reinforcement section 6 on the side closer to the positioning section 3 is greater than the outer diameter E on the side farther from the positioning section 3, and the outer diameter D of the first reinforcement section 6 on the side closer to the positioning section 3 is smaller than the inner diameter of the first reinforcement groove, thereby creating a space between the first reinforcement groove and the first reinforcement section 6 for filling the second medium 5.

[0052] Furthermore, the first reinforcing section 6 is conical (or T-shaped, for example, a convex ring with an outer diameter of D is provided on the side of the first reinforcing section 6 near the positioning section 3. Regardless of the shape of the first reinforcing section 6, as long as the outer diameter on the side near the positioning section 3 is greater than the outer diameter on the side away from the positioning section 3), it can form a wedge in the first reinforcing groove. When the pipe body 2 is subjected to axial force, the first reinforcing section 6 can be firmly fixed in the first reinforcing groove.

[0053] In order to allow the second medium 5 to be filled, the connector 1 is provided with a second hole 12, which is connected to the first reinforcing groove; The first reinforced section 6 and the first reinforced groove are filled with a second medium 5.

[0054] Furthermore, in order to cooperate with the first reinforcing section 6, the inner diameter d of the first reinforcing groove on the side closer to the second positioning groove is greater than the inner diameter e on the side farther from the second positioning groove, and the inner diameter e of the first reinforcing groove on the side farther from the second positioning groove is greater than the inner diameter c of the second positioning groove.

[0055] Furthermore, the first reinforcing groove is a conical groove.

[0056] Furthermore, in order to further strengthen the connection between the pipe body 2 and the connector 1, the reinforcement space includes a second reinforcement groove provided on the inner wall of the connector 1, wherein the inner diameter of the second reinforcement groove is larger than the inner diameter of the first reinforcement groove; The reinforcement section includes a second reinforcement section 7, and the first reinforcement section 6 is located between the positioning section 3 and the second reinforcement section 7. The outer diameter F of the second reinforcement section 7 on the side closer to the first reinforcement section 6 is greater than the outer diameter G on the side farther from the first reinforcement section 6. The second reinforcement groove is connected to the first reinforcement groove; The second reinforcement section 7 and the second reinforcement groove are filled with a second medium 5.

[0057] Furthermore, the second reinforced section 7 is tapered.

[0058] Furthermore, the inner diameter f of the second reinforcing groove on the side closer to the first reinforcing groove is greater than the inner diameter g on the side farther from the first reinforcing groove.

[0059] Furthermore, the inner diameter g of the second reinforcing groove on the side away from the first reinforcing groove is greater than the inner diameter d of the first reinforcing groove on the side closer to the second positioning groove.

[0060] Furthermore, the second reinforcing groove is a conical groove.

[0061] Furthermore, without changing the external main structure of the tube body 2 (i.e. without setting the convex ring structure as described above), in order to reduce the production difficulty of the tube body 2, in order to make it present a shape with one end larger than the other in the first reinforcing section 6, a first adjusting member 101 for changing the outer diameter of the first reinforcing section 6 is provided on the first reinforcing section 6.

[0062] Furthermore, the first adjusting member 101 is a conical sleeve, thereby making the first reinforcing section 6 conical.

[0063] And / or the second reinforcing section 7 is provided with a second adjusting member 102 for changing the outer diameter of the second reinforcing section 7. When the second reinforcing section 7 is provided, the second adjusting member 102 can be provided so that the second reinforcing section 7 is tapered.

[0064] It should be noted that when multiple reinforcing sections are provided, the number of adjusting parts can also be increased accordingly. For example, when a third reinforcing section is provided, a third adjusting part for changing the outer diameter of the third reinforcing section can be provided on the third reinforcing section. Therefore, the scope of protection of this application should not be limited to providing one or two reinforcing sections, and the implementation of providing multiple reinforcing sections and multiple adjusting parts should not be excluded from the scope of protection of this application.

[0065] Furthermore, when the first adjusting member 101 is provided, the inner wall of the second positioning groove is provided with a third positioning groove. The inner diameter h of the third positioning groove is greater than the inner diameter c of the second positioning groove and less than the inner diameter of the first reinforcing groove, so that the third positioning groove forms a second end face for abutment on the second positioning groove. The third positioning groove is located between the second positioning groove and the first reinforcing groove. The side of the first adjusting member 101 near the positioning section 3 is located in the third positioning groove and abuts against the second end face.

[0066] Furthermore, the inner wall of the first reinforcing groove has a first reinforcing structure 8 for increasing the contact area with the second medium 5. The first reinforcing structure 8 can be a corrugated, grooved, or triangular groove provided along the inner wall of the first reinforcing groove. And / or the inner wall of the second reinforcing groove has a second reinforcing structure 9 for increasing the contact area with the second medium 5. The second reinforcing structure 9 can be a corrugated, grooved, or triangular groove provided along the inner wall of the first reinforcing groove.

[0067] Furthermore, the first reinforcing structure 8 and the second reinforcing structure 9 can be teeth extending from the inner wall of the reinforcing groove toward the reinforcing section, and the teeth are inclined toward the positioning section 3, so that when the tube body 2 is subjected to axial force, the teeth can form barbs embedded in the second medium 5, further increasing the firmness of the connection between the tube body 2 and the connector 1.

[0068] Furthermore, the first reinforcing structure 8 comprises several occlusal groups, each occlusal group including two protrusions extending towards the first reinforcing section and two grooves extending away from the first reinforcing section; the two protrusions are respectively a first occlusal tooth 111 and a second occlusal tooth 112, and the two grooves are respectively a first occlusal groove 121 and a second occlusal groove 122, wherein the cross-sections of the first occlusal tooth 111, the first occlusal groove 121, and the second occlusal groove 122 are all triangular, and the cross-section of the second occlusal tooth 112 is trapezoidal. Each occlusal group is arranged in the order of the first occlusal tooth 111, the first occlusal groove 121, the second occlusal tooth 112, and the second occlusal groove 122, that is, the first occlusal groove 121 is provided between the first occlusal tooth 111 and the second occlusal tooth 112 (e.g., ...). Figure 7 As shown, the right side wall of the first occlusal tooth 111 and the left side wall of the second occlusal tooth 112 form the two sidewalls of the first occlusal groove 121. A second occlusal groove 122 is provided between the second occlusal tooth 112 and the first occlusal tooth 111 of another occlusal group (e.g., Figure 7 As shown, the right side wall of the second biting tooth 112 and the left side wall of the first biting tooth 111 of another biting group form the two side wall surfaces of the second biting groove 122. The above structural design can form male and female teeth through the cooperation of the biting teeth and the biting groove, which can provide extremely strong pull-out resistance when axial tensile force is generated.

[0069] Furthermore, the engagement assembly is spirally arranged on the inner wall of the first reinforcing groove, so that the engagement assembly forms a thread on the first reinforcing groove, such as... Figure 7 , Figure 8 As shown, when the hose is under ultra-high pressure, if the second medium 5 becomes loose from the first reinforcing groove (for example, when assembling the connector 1 and the tube body 2, if the inside of the connector 1 is not cleaned properly and there are residual dust and other impurities, the firmness between the second medium 5 and the connector 1 will be reduced), the second medium 5 attached to the first reinforcing section 6 can be tightened onto the first reinforcing groove like a screw under the action of the high-pressure fluid inside the tube. Especially when the first reinforcing groove is a conical groove, the connection will be more secure. Therefore, even if the second medium 5 is peeled off from the first reinforcing groove due to the connector 1 not being cleaned properly, the tube body 2 and the connector 1 can still maintain a firm connection.

[0070] Furthermore, the second reinforcing structure 9 is the same as the first reinforcing structure 8.

[0071] In the description of this invention, 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," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention 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 invention.

[0072] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0073] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. Other modifications can be easily made by those skilled in the art. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. Ultra-high pressure integrated vulcanized flexible hose for marine engineering, including: The connector (1) and the pipe body (2) are characterized in that the inner wall of the connector (1) has a positioning space for positioning the pipe body (2) and a reinforcing space for preventing the pipe body (2) from separating from the connector (1), and the pipe body (2) has a positioning section (3) and a reinforcing section. The positioning segment (3) is located within the positioning space, and the positioning space and the positioning segment (3) are filled with a first medium (4). The reinforced section is located within the reinforced space, and the space between the reinforced section and the reinforced section is filled with a second medium (5).

2. The ultra-high pressure integrated vulcanized flexible hose for marine engineering according to claim 1, characterized in that, The positioning space includes a first positioning groove disposed on the inner wall of the connector (1), wherein the inner diameter b of the first positioning groove is greater than the inner diameter a of the connector (1).

3. The ultra-high pressure integrated vulcanized flexible hose for marine engineering according to claim 2, characterized in that, The positioning space includes a second positioning groove provided on the inner wall of the connector (1). The inner diameter c of the second positioning groove is greater than the inner diameter b of the first positioning groove. The second positioning groove is located between the first positioning groove and the reinforcement space. The connector (1) is provided with a first hole (11). The first hole (11) is connected to the second positioning groove. The second positioning groove and the positioning section (3) are filled with a first medium (4).

4. The ultra-high pressure integrated vulcanized flexible hose for marine engineering according to claim 3, characterized in that, The reinforcement space includes a first reinforcement groove provided on the inner wall of the joint (1), wherein the inner diameter of the first reinforcement groove is greater than the inner diameter c of the second positioning groove; The reinforcement section includes a first reinforcement section (6), wherein the outer diameter D of the first reinforcement section (6) on the side closer to the positioning section (3) is greater than the outer diameter E on the side farther from the positioning section (3); The connector (1) is provided with a second hole (12), which is connected to the first reinforcing groove; The first reinforced section (6) and the first reinforced groove are filled with a second medium (5).

5. The ultra-high pressure integrated vulcanized flexible hose for marine engineering according to claim 4, characterized in that, The inner diameter d of the first reinforcing groove on the side closer to the second positioning groove is greater than the inner diameter e on the side farther from the second positioning groove, and the inner diameter e of the first reinforcing groove on the side farther from the second positioning groove is greater than the inner diameter c of the second positioning groove.

6. The ultra-high pressure integrated vulcanized flexible hose for marine engineering according to claim 4, characterized in that, The reinforcement space includes a second reinforcement groove provided on the inner wall of the joint (1), the inner diameter of the second reinforcement groove being larger than the inner diameter of the first reinforcement groove; The reinforcement section includes a second reinforcement section (7), the first reinforcement section (6) is located between the positioning section (3) and the second reinforcement section (7), and the outer diameter F of the second reinforcement section (7) on the side closer to the first reinforcement section (6) is greater than the outer diameter G on the side farther from the first reinforcement section (6); The second reinforcement groove is connected to the first reinforcement groove; The second reinforcement section (7) and the second reinforcement groove are filled with a second medium (5).

7. The ultra-high pressure integrated vulcanized flexible hose for marine engineering according to claim 6, characterized in that, The inner diameter f of the second reinforcing groove on the side closer to the first reinforcing groove is greater than the inner diameter g on the side farther from the first reinforcing groove.

8. The ultra-high pressure integrated vulcanized flexible hose for marine engineering according to claim 7, characterized in that, The inner wall of the first reinforcing groove has a first reinforcing structure (8) for increasing the contact area with the second medium (5); And / or the inner wall of the second reinforcing groove has a second reinforcing structure (9) for increasing the contact area with the second medium (5).

9. The ultra-high pressure integrated vulcanized flexible hose for marine engineering according to claim 6, characterized in that, The first reinforcing section (6) is provided with a first adjusting member (101) for changing the outer diameter of the first reinforcing section (6); And / or the second reinforcing section (7) is provided with a second adjusting member (102) for changing the outer diameter of the second reinforcing section (7).

10. The ultra-high pressure integrated vulcanized flexible hose for marine engineering according to claim 9, characterized in that, The inner wall of the second positioning groove is provided with a third positioning groove. The inner diameter h of the third positioning groove is greater than the inner diameter c of the second positioning groove and less than the inner diameter of the first reinforcing groove. The third positioning groove is located between the second positioning groove and the first reinforcing groove. The side of the first adjusting member (101) near the positioning section (3) is located in the third positioning groove.

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