Hose assembly

Abstract

The invention discloses a hose assembly, and relates to the technical field of conveying equipment, the hose assembly comprises: a hose comprising a steel wire rope and a structural layer wrapping the steel wire rope; the kit assembly comprises a first kit and a second kit which are arranged in a nested mode, the first kit and the second kit are arranged on the outer side and the inner side of the hose respectively, the first kit can press the hose between the second kit and the first kit by extruding the structural layer, and an inner cavity of the second kit is connected with an inner cavity of the hose in a sealed mode and used for being communicated with external equipment; the fastening assembly is arranged on the side, away from the hose, of the first sleeve piece and used for fastening the steel wire rope which is located at the end of the hose and penetrates out of the first sleeve piece to the first sleeve piece. According to the hose assembly, through cooperation of the steel wire rope and the fastening assembly, the anti-drawing performance of the hose assembly can be guaranteed, the use reliability of the hose assembly is guaranteed, and the safety problem caused by falling off or breaking is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of conveying equipment, and more particularly to a hose assembly. Background Art

[0002] In the field of fluid conveying technology, the conveying system needs to withstand complex mechanical stresses and high demands brought about by different application environments, which places high requirements on the tensile strength of the conveying system.

[0003] In related technologies, in complex environments such as nuclear industry environments, the hose connections of the conveying system are prone to loosening or even breaking, causing fluid leakage, affecting the production process and posing a safety hazard.

[0004] In summary, how to provide a hose with good pull-out resistance is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a hose assembly that can ensure the pull-out resistance of the hose assembly through the cooperation of the wire rope and the fastening component, ensure the reliability of the hose assembly, and avoid safety problems caused by falling off or breaking.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A hose assembly, comprising:

[0008] A hose comprising a steel wire rope and a structural layer wrapping the steel wire rope;

[0009] A kit assembly, comprising a first kit and a second kit arranged in a nested manner, wherein the first kit and the second kit are respectively arranged on the outside and inside of the hose, the first kit being capable of pressing the hose between the second kit and the first kit by squeezing the structural layer, and the inner cavity of the second kit being hermetically connected to the inner cavity of the hose and being used for communicating with external equipment;

[0010] The fastening assembly is arranged on a side of the first set away from the hose, and is used to fasten the steel wire rope located at the end of the hose and passing through the first set to the first set.

[0011] Preferably, the first kit is provided with at least one perforation groove which is arranged to penetrate the first kit along its radial direction, and the perforation groove is arranged close to the end of the hose, and the perforation groove is used for the steel wire rope to pass through.

[0012] Preferably, a guide portion is provided on the outer periphery of the first set, and the guide portion is arranged in the axial direction and / or radial direction of the first set for guiding the installation of the steel wire rope extending out of the perforated slot portion relative to the first set.

[0013] Preferably, a plurality of the fastening components are arranged along the axial direction of the first kit, and the fastening components are arranged in a ring on the first kit to fasten the steel wire rope.

[0014] Preferably, the first set is provided with a barbed protrusion on one side close to the hose, and the second set is provided with a snap-fitting portion that can be nested in the barbed protrusion on one side close to the hose, and the contact area between the snap-fitting portion and the hose is larger than the contact area between the barbed protrusion and the hose.

[0015] Preferably, a plurality of the engaging portions are axially arranged along the second kit to form a pagoda-shaped boss, and a recessed position of the pagoda-shaped boss corresponds to at least one of the barbed protrusions.

[0016] Preferably, at least one clamping portion is provided at the end of the first kit, and a clamping groove is provided on the second kit to cooperate with the clamping portion, and the maximum distance between the pagoda-shaped boss and the axis of the second kit is smaller than the distance between the bottom plane of the clamping groove and the axis of the second kit.

[0017] Preferably, it also includes a fastening nut, the step inside the fastening nut and the card platform at the end of the second kit are cooperatively connected, a movable distance is formed between the card platform and the end of the first kit close to the fastening nut, the fastening nut moves within the movable distance, and the step and the card platform are carded after the fastening nut and the external device are connected in place.

[0018] Preferably, the structural layer includes: a reinforcing fiber layer, a weather-resistant protective layer and an anti-corrosion lining layer located on both sides of the reinforcing fiber layer, at least two of the reinforcing fiber layers are arranged on both sides of the steel wire rope, and along the axial direction away from the hose, the anti-corrosion lining layer, the reinforcing fiber layer, and the weather-resistant protective layer are arranged radially in sequence.

[0019] Preferably, the reinforcing fiber layer includes a first aramid braided layer and a second aramid braided layer, and the steel wire rope is located between the first aramid braided layer and the second aramid braided layer;

[0020] The second aramid braided layer is arranged closer to the hose axis than the first aramid braided layer, a second braiding angle of the second aramid braided layer is smaller than a first braiding angle of the first aramid braided layer, and a difference between the second braiding angle and the first braiding angle is 0.1-0.3.

[0021] The hose assembly provided by the present invention includes a hose, a kit component and a fastening component, wherein the hose includes a steel wire rope and a structural layer wrapping the steel wire rope, and the kit component includes a first kit and a second kit arranged in a nested manner. The first kit is located on the outside of the hose, and can be squeezed by squeezing the first kit to squeeze the structural layer and fix the hose between the first kit and the second kit, thereby ensuring the reliability of the hose installation; further, the inner cavity of the second kit is sealed and connected to the inner cavity of the hose and can be connected to the external setting to realize the connection between the hose and the external equipment; the steel wire rope at the end of the hose can pass through the first kit setting and can be fastened to the outside of the first kit by the fastening component. In this way, the pull-out resistance of the hose assembly is guaranteed, the reliability of the hose assembly is guaranteed, and the safety problems caused by falling off or breaking are avoided.

[0022] The beneficial effects of the present invention are: by passing the steel wire rope through the first kit and cooperating with the fastening effect of the fastening component, the hose is ensured to be reliably installed, and then the structural strength and pull-out resistance of the hose assembly are ensured by squeezing the first kit. Without affecting the sealing of the hose assembly, the performance of the hose assembly is greatly improved. The structure is simple and reliable, the manufacturing cost is low, and it is more suitable for the transportation of medium solutions in harsh environments such as nuclear industry scenarios, ensuring safety and reliability of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0024] Figure 1 This is a schematic structural diagram of the hose assembly provided by the present invention;

[0025] Figure 2 for Figure 1 sectional view of

[0026] Figure 3 A schematic structural diagram of the first kit provided by the present invention;

[0027] Figure 4 This is a schematic structural diagram of the second kit provided by the present invention;

[0028] Figure 5 for Figure 4 Schematic diagram of the local structure;

[0029] Figure 6 This is a schematic structural diagram of the fastening nut provided by the present invention;

[0030] Figure 7 A schematic structural diagram of the fastening assembly provided by the present invention;

[0031] Figure 8 A schematic diagram of the structure of the hose provided by the present invention;

[0032] Figure 9 for Figure 8 sectional view of .

[0033] Figures 1-9 , the reference numerals include:

[0034] 1-first set; 2-fastening nut; 3-clamping platform; 4-step; 5-second set; 6-cage; 7-clamping part; 8-raised platform; 9-barbed protrusion; 10-clamping part; 11-weather-resistant protective layer; 12-reinforced fiber layer; 13-steel wire rope; 14-anti-corrosion lining layer; 15-perforated groove; 16-fastening component; 17-hose. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] The core of the present invention is to provide a hose assembly with good pull-out resistance and reliable performance.

[0037] The hose assembly provided by the present invention includes a hose 17, a kit component and a fastening component 16, please refer to Figure 1 .

[0038] The hose 17 includes a steel wire rope 13 and a structural layer that wraps the steel wire rope 13. The arrangement of the steel wire rope 13 can provide greater tensile strength and impact resistance with lower manufacturing cost and simpler structural form, thereby ensuring the reliable service life of the hose 17 and the overall pull-out resistance of the hose 17.

[0039] In a specific embodiment, the structural layer is a single layer, and the steel wire rope 13 is also a single layer. The steel wire rope 13 is wrapped in the structural layer. The setting of the steel wire rope 13 ensures the tensile performance of the hose 17, reduces the possibility of breakage during use, and reduces safety hazards during use.

[0040] In another specific embodiment, the structural layer is multi-layered, and the steel wire rope 13 is also multi-layered. The steel wire rope 13 and the structural layer are arranged in sequence, and the outermost layer and the innermost layer are both structural layers, so that multiple steel wire ropes 13 can be arranged in the hose 17 to ensure the reliable tensile performance of the hose 17, reduce the possibility of breakage during use, and reduce safety hazards during use.

[0041] The potential safety hazards in the above embodiment include the application of the hose 17 in the field of conveying highly corrosive medium solutions, such as acid and alkali solutions, radioactive liquids, etc. It is necessary to avoid the risk of fluid leakage to avoid affecting the production process.

[0042] In addition, the steel wire rope 13 in this embodiment can be a grid-shaped steel wire rope 13, or can be a round strand structure, a single-twist structure, or a multi-twist structure, etc., which can provide better structural strength.

[0043] The kit assembly includes a first kit 1 and a second kit 5 that are nested, wherein the first kit 1 and the second kit 5 are respectively located on the outside and inside of the hose 17. The first kit 1 can squeeze the hose 17 between the first kit 1 and the second kit 5 in the form of an extruded structural layer. The specific extrusion method can be to extrude the first kit 1 through a crimping machine and then extrude the structural layer onto the second kit 5 to ensure reliable fit of the first kit 1, the hose 17, and the second kit 5.

[0044] The second sleeve 5 is located inside the hose 17, effectively forming a sealed connection between the second sleeve 5 and the inner structural layer of the hose 17. In actual use, the hose 17 can be connected to an external device through the second sleeve 5 to achieve the delivery of liquid media. Specifically, the external device can be a medium container including a connector, which can be connected to the second sleeve 5 via the connector.

[0045] Specifically, during use, the first kit 1 and the second kit 5 can be arranged at the end positions of the hose 17. The end positions correspond to positions that are prone to breakage or falling when connected to external equipment, and require enhanced tensile performance. The remaining positions do not need to be set to meet the bending performance of the hose 17, so as to facilitate long-distance liquid medium transportation operations and transportation and transfer operations; in addition, the first kit 1 and the second kit 5 can be arranged at all axial positions of the hose 17. In this case, it is suitable for relatively short transportation distances and areas with high requirements for the overall tensile performance of the hose 17. The overall length of the hose 17 is small, and transportation and transfer are relatively convenient.

[0046] The steel wire rope 13 can specifically increase the tensile strength of the hose 17 in that the steel wire rope 13 can pass through the first set 1 and be fastened by the fastening assembly 16 .

[0047] Specifically, the structural layer and the steel wire rope 13 can be set to be of equal length. When the specific hose 17 is connected to an external device for use, a portion of the structural layer at the end of the hose 17 is peeled off to expose a portion of the length of the steel wire rope 13. This portion of the length can extend out of the first kit 1 and can be fastened to the first kit 1 by the fastening component 16. By fastening the steel wire rope 13 with the fastening component 16, the hose 17 can be reliably fixed relative to the kit component to avoid falling off or breaking during use, thereby ensuring reliability of use.

[0048] Alternatively, the length of the steel wire rope 13 is greater than that of the structural layer. Specifically, the length of the steel wire rope 13 exposed from the structural layer is the portion that can pass through the first sleeve 1 and can be fastened by the fastening assembly 16. In this case, the exposed length of the steel wire rope 13 is reserved in advance when the hose 17 is manufactured, eliminating the need to peel off the structural layer and reducing material waste.

[0049] In this embodiment, the fastening assembly 16 is arranged on the side of the first kit 1 away from the hose 17, that is, on the outside of the first kit 1, and can reliably fasten the portion of the wire rope 13 passing through the first kit 1. The reliable fastening here specifically means that the portion of the wire rope 13 wrapped or arranged on the outside of the first kit 1 can be firmly fixed. By reliably fixing this portion of the wire rope 13, the pull-out resistance of the hose 17 is improved, thereby ensuring the reliability of the hose 17 during use.

[0050] In this embodiment, the wire rope 13 may pass through the first sleeve 1 through the gap between the first sleeve 1 and the hose 17 or through an opening or hole provided on the first sleeve 1, without any specific limitation.

[0051] It should be noted that the part of the wire rope 13 passing through the first kit 1 does not affect the normal use of the wire rope 13 arranged in the structural layer, and does not cause pulling on the wire rope 13 arranged in the structural layer, thereby ensuring the reliable use performance of the hose 17 located between the first kit 1 and the second kit 5.

[0052] The fastening assembly 16 in this embodiment may specifically be a component that can be tightened by winding, a component that can be fastened in the form of a hoop, or a combination of fastenings, without further limitation.

[0053] In this embodiment, the use of the kit assembly can ensure that the hose 17 is reliably fixed, and the wire rope 13 passes through the kit assembly and is fastened by the fastening assembly 16, thereby ensuring the pull-out resistance of the entire hose 17 and ensuring the service life of the hose 17.

[0054] On the basis of the above embodiment, the first set 1 is provided with at least one perforation slot 15 extending radially therethrough. The perforation slot 15 is provided close to the end of the hose 17 and is used for the steel wire rope 13 to pass through.

[0055] The setting of the perforation groove 15 can facilitate the passage of the steel wire rope 13 . If one perforation groove 15 is provided, the steel wire rope 13 can pass through it and be wound around or arranged on the outside of the first set 1 , and then be fastened by the fastening assembly 16 .

[0056] If multiple perforated grooves 15 are provided, the steel wire rope 13 can be passed through the corresponding perforated grooves 15 in sequence and then fastened by the fastening assembly 16 to ensure that the steel wire rope 13 is reliably fixed relative to the first kit 1; or, on the premise of providing multiple perforated grooves 15, different layers of steel wire ropes 13 of the corresponding hose 17 are passed through, and each layer of steel wire rope 13 passes through the perforated groove 15 at the corresponding position.

[0057] In this embodiment, the perforation groove 15 is arranged close to the end of the hose 17, and a steel wire rope 13 extending out of the structural layer is provided corresponding to the end position of the hose 17. This arrangement facilitates the passage of the steel wire rope 13 and avoids the situation where a long steel wire rope 13 remains between the first kit 1 and the second kit 5, thereby ensuring the reliable passage of the steel wire rope 13. Combined with the use of the fastening component 16, the reliability of the overall use of the hose assembly is guaranteed.

[0058] In this embodiment, the specific shape and size of the perforation slot 15 are not limited, and can be set to be circular, square, waist-shaped, etc., and the size can be convenient for the wire rope 13 to pass through.

[0059] The portion of the steel wire rope 13 at the end of the hose 17 passing through the perforated groove 15 can be securely fixed to the outside of the first kit 1 through the fastening assembly 16, so as to meet the use requirements of improving the pull-out resistance of the hose 17, reduce the possibility of the hose 17 falling off or leaking, and ensure the reliability of use.

[0060] Based on any of the above embodiments, a guide portion is provided on the outer periphery of the first kit 1, which is arranged in the axial and / or radial direction of the first kit 1 and is used to guide the installation of the wire rope 13 extending from the perforated groove 15 relative to the first kit 1.

[0061] The guide portion can be in the form of an installation groove, which can be a radial installation groove or an axial installation groove, so as to reliably guide the steel wire rope 13 passing through the perforated groove 15 relative to the first assembly 1, thereby ensuring the reliable installation of the steel wire rope 13. Specifically, the steel wire rope 13 extends into the installation groove for positioning and installation.

[0062] The guide portion can be in the form of a protrusion, which can be a radial protrusion or an axial protrusion, and can be used to reliably guide the steel wire rope 13 passing through the perforated groove 15 relative to the first set 1, ensuring the reliable installation of the steel wire rope 13. Specifically, the steel wire rope 13 contacts the protrusion to be positioned and installed.

[0063] The guide portion can be configured in a spiral, circular, or elongated shape, etc., and can be designed based on actual needs without further restrictions. In this embodiment, if the wire rope 13 passes through the perforated slot 15 and is wrapped around the outer circumference of the first sleeve 1, the corresponding guide portion can be configured in a spiral or circular shape. If the wire rope 13 passes through the perforated slot 15 and is radially arranged around the outer circumference of the first sleeve 1, the guide portion can be configured in an elongated shape.

[0064] Taking a specific implementation as an example, after the steel wire rope 13 passes through the perforation groove 15, it is accurately positioned by the positioning guidance of the guide part, and then the steel wire rope 13 is reliably fastened by the fastening component 16 to ensure the pull-out resistance of the hose 17.

[0065] In this embodiment, the setting of the guide part on the first kit 1 can ensure the reliable installation of the wire rope 13 passing through the first kit 1 part, ensure the reliable installation of the hose 17 relative to the first kit 1 and the second kit 5, and ensure reliable performance.

[0066] Based on any of the above embodiments, please refer to Figure 1 、 Figure 2 A plurality of fastening components 16 are provided along the axial direction of the first set 1 , and the fastening components 16 are arranged in a ring on the first set 1 to fasten the steel wire rope 13 .

[0067] Taking a specific embodiment as an example, the steel wire rope 13 extends radially along the first kit 1 after passing through the perforated groove 15. The radially extended part is reliably fixed to the outside of the first kit 1 through multiple fastening components 16. The steel wire rope 13 is reliably fastened from multiple radial positions. On the basis of the hose 17 being partially placed between the first kit 1 and the second kit 5, the steel wire rope 13 part passing through the perforated groove 15 of the first kit 1 is reliably fixed to ensure the pull-out resistance of the entire hose 17 and the reliable use performance of the hose assembly as a whole.

[0068] In this embodiment, a plurality of fastening components 16 can be provided in a ring on the first set 1 to ensure reliable fastening performance. For example, the fastening component 16 can be a hoop. Please refer to Figure 1 、 Figure 6 After the steel wire rope 13 is positioned through the guide portion, the hoop provides a reliable fastening force to ensure that the kit assembly and the hose 17 are reliably fixed, to ensure the pull-out resistance and structural strength of the hose 17, and to ensure reliable and safe use.

[0069] Based on any of the above embodiments, please refer to Figure 2 The first set 1 is provided with a barbed protrusion 9 on the side close to the hose 17, and the second set 5 is provided with a snap-fitting portion 10 that can be nested in the barbed protrusion 9 on the side close to the hose 17. The contact area between the snap-fitting portion 10 and the hose 17 is larger than the contact area between the barbed protrusion 9 and the hose 17.

[0070] The first set 1 is close to one side of the hose 17, that is, the relatively inner position of the first set 1, and a barbed protrusion 9 is set at this position; correspondingly, the second set 5 is close to one side of the hose 17, that is, the relatively outer position of the second set 5, and a snap-fit ​​portion 10 is set.

[0071] The snap-fitting portion 10 cooperates with the barbed protrusion 9. When the crimping machine compresses the first sleeve 1 and, in turn, the hose 17 onto the second sleeve 5, the first sleeve 1 and the second sleeve 5 engage with each other, with the barbed protrusion 9 partially engaging the snap-fitting portion 10, thus ensuring the overall reliability and structural strength of the hose assembly. Furthermore, this snap-fitting relationship allows for significant and appropriate deformation of the structural layer, reliably ensuring the installation of the hose 17 and maintaining overall pullout resistance.

[0072] Specifically, since the structural layer is wrapped around the steel wire rope 13 and has a certain thickness, when the first set 1 and the second set 5 are relatively buckled, the barbed protrusion 9 can be partially inserted into the locking portion 10 to cause a large deformation of the structural layer without affecting the normal performance of the steel wire rope 13 between the structural layers.

[0073] In addition, the barbed protrusion 9 and the engaging portion 10 can be set slightly longer to form an extended sealing section, thereby ensuring the sealing performance of the inner side of the hose 17 and the second set 5 and ensuring reliable use effect.

[0074] As shown in the figure, the diameter of the barbed protrusion 9 gradually decreases as it approaches the hose 17, but it does not tend to zero. Instead, the diameter of the part closest to the hose 17 is the smallest but still has a flat shape, which can ensure a good connection effect while avoiding damage to the structural layer and the wire rope 13.

[0075] In addition, the contact area between the engaging portion 10 and the hose 17 is larger than the contact area between the barbed protrusion 9 and the hose 17 , thereby avoiding damage to the inner side of the hose 17 and ensuring the service life and reliable performance of the hose 17 .

[0076] In this embodiment, the specific engaging portion 10 can be an arc-shaped structure, a square structure, etc., and can be designed in combination with specific usage requirements, and is not limited here.

[0077] Based on any of the above embodiments, please refer to Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 A plurality of engaging portions 10 are axially arranged along the second sleeve 5 to form a pagoda-shaped boss, and a recessed position of the pagoda-shaped boss corresponds to at least one barbed protrusion 9 .

[0078] The concave position of the pagoda-shaped boss corresponds to the part that engages with the barbed protrusion 9 of the first kit 1. As shown in the figure, the structure of the pagoda-shaped boss is relatively flat as a whole. By increasing the contact area with the hose 17, it can effectively reduce the pressure on the inner side of the hose 17 when buckled, so as to effectively ensure the service life of the hose 17 and ensure reliability of use.

[0079] As shown in the figure, the recessed position of the pagoda-shaped boss can correspond to a barbed protrusion 9, which can ensure that the first kit 1 and the second kit 5 are reliably matched, and can ensure the reliable installation of the hose 17, ensure the pull-out resistance and structural strength of the entire hose assembly, and ensure the safety and reliability of use.

[0080] In some embodiments, since the recessed area of ​​the pagoda-shaped boss is relatively large, the first set 1 and the second set 5 can also be ensured to be reliably matched by contacting a plurality of barbed protrusions 9 .

[0081] Based on any of the above embodiments, please refer to Figure 2 、 Figure 3 The end of the first set 1 is provided with at least one clamping portion 7, and the second set 5 is provided with a clamping groove 6 that cooperates with the clamping portion 7. The maximum distance between the pagoda-shaped boss and the axis of the second set 5 is smaller than the distance between the bottom plane of the clamping groove 6 and the axis of the second set 5.

[0082] The cooperation between the clamping portion 7 and the clamping groove 6 can provide the first kit 1 and the second kit 5 with the positioning of clamping and installing the hose 17, so as to ensure the reliable engagement of the first kit 1 and the second kit 5, and ensure the reliability of the installation of the hose 17 between the first kit 1 and the second kit 5. Further combined with the steel wire rope 13 passing through the perforated groove 15 of the first kit 1 and the fastening setting of the fastening component 16, the overall reliable structural strength of the hose assembly can be guaranteed, and the pull-out resistance performance can be improved.

[0083] In addition, the maximum distance between the pagoda-shaped boss and the axis of the second kit 5 is smaller than the distance between the bottom plane of the groove 6 and the axis of the second kit 5. As shown in the figure, the step structure formed at the position of the boss 8 is used for positioning and installing the hose 17, and the step structure is set lower than the groove 6. Through this setting, when the crimping machine is crimped on the first kit 1 to reliably install the hose 17, the first kit 1 is divided into sections to meet the extrusion and positioning installation requirements respectively, thereby ensuring the sealing performance of the first kit 1 and the second kit 5 relative to the hose 17 and ensuring the reliable use performance of the hose assembly.

[0084] Based on any of the above embodiments, please refer to Figure 2 、 Figure 4 、 Figure 6 , and also includes a fastening nut 2, a step 4 inside the fastening nut 2 and a card table 3 at the end of the second kit 5 are matched and connected, a movable distance is formed between the card table 3 and the end of the first kit 1 close to the fastening nut 2, the fastening nut 2 moves within the movable distance, and after the fastening nut 2 and the external device are connected in place, the step 4 and the card table 3 are carded.

[0085] The fastening nut 2 is mainly used to connect the second kit 5 and the external device. The second kit 5 and the hose 17 are tightly connected. The fastening nut 2 is moved to partially extend out of the end of the second kit 5 and be able to connect with the external device, that is, it can be used to achieve communication between the external device and the hose 17.

[0086] Specifically, the step 4 within the fastening nut 2 is mated with the catch 3 at the end of the second sleeve 5. The end of the second sleeve 5 extends relatively beyond the end of the first sleeve 1, and a movable distance is formed between the end of the first sleeve 1 and the catch 3. The fastening nut 2 can move within this movable distance when not in use. When the fastening nut 2 is in operation, it moves and tightens relative to the external device until the step 4 of the fastening nut 2 reaches the catch 3, completing the tightening connection. The reaction force between the catch 3 and the nut step 4, combined with the cooperation of the clamping portion 7 and the slot 6, ensures the hose assembly's pull-out resistance during use, ensuring reliability.

[0087] Based on any of the above embodiments, please refer to Figure 7 、 Figure 9 The structural layer includes: a reinforcing fiber layer 12, a weather-resistant protective layer 11 and an anti-corrosion lining layer 14 located on both sides of the reinforcing fiber layer 12. At least two reinforcing fiber layers 12 are arranged on both sides of the steel wire rope 13. Along the axial direction away from the hose 17, the anti-corrosion lining layer 14, the reinforcing fiber layer 12, and the weather-resistant protective layer 11 are arranged in sequence along the radial direction.

[0088] In a specific embodiment, the anti-corrosion lining layer 14 is a polytetrafluoroethylene composite layer. This configuration can ensure the corrosion resistance of the hose 17, allowing it to be used in the transportation of corrosive medium solutions and ensuring reliability. The specific processing process of the anti-corrosion lining layer 14 is as follows:

[0089] Mix polytetrafluoroethylene and polyetheretherketone in a certain proportion, place them in a high-speed mixer, and stir them at a temperature of 80℃-100℃ for 2-3 hours to ensure that the ingredients are fully mixed. Subsequently, the mixture is placed in a vacuum drying oven and dried for 12-24 hours at a temperature of 120℃-150℃ and a vacuum degree of ≤1000Pa to remove moisture and volatile impurities in the mixture. Next, the dried material is heated to 300℃-350℃ through a twin-screw extruder for melt extrusion. The extrusion speed is controlled at 5-10 meters / minute. At the same time, it is cooled and shaped through a cooling water tank. The cooling water temperature is controlled at 10℃-15℃ to obtain an anti-corrosion lining layer 14 with good corrosion resistance.

[0090] Furthermore, the weather-resistant protective layer 11, the reinforcing fiber layer 12, the steel wire rope 13, and the anti-corrosion inner lining layer 14 are connected as a whole. Specifically, several fiber layers, the steel wire rope 13, several fiber layers, and the weather-resistant protective layer 11 are sequentially laid on the anti-corrosion inner lining layer 14 to obtain a corrosion-resistant and pull-out-resistant resin hose 17. It should be noted that a good connection strength can be ensured by laying an adhesive between the anti-corrosion inner lining layer 14, the fiber layer, the steel wire rope 13, and the weather-resistant protective layer 11, and the specific form of the adhesive is not limited.

[0091] The weather-resistant protective layer 11 may be a thermoplastic polyurethane protective layer, which can provide better protection performance and ensure the service life and reliability of the hose 17.

[0092] Taking a specific embodiment as an example, the diameter of the steel wire rope 13 can be selected to be 1.5-3 mm, the thickness of the anti-corrosion lining layer 14 can be 1.0-1.5 mm, and the thickness of the reinforcing fiber layer 12 can be 1.0-1.5 mm.

[0093] Based on any of the above embodiments, the reinforcing fiber layer 12 includes a first aramid braided layer and a second aramid braided layer. The steel wire rope 13 is located between the first and second aramid braided layers and arranged along the braiding direction. The first and second aramid braided layers can be securely connected by an adhesive, thereby reliably securing the steel wire rope 13. The first and second aramid braided layers are both formed by cross-weaving aramid.

[0094] The second aramid braided layer is arranged closer to the axial direction of the hose 17 than the first aramid braided layer, that is, the first aramid braided layer is arranged closer to the outside.

[0095] The second braid angle of the second aramid braided layer is smaller than the first braid angle of the first aramid braided layer, and the difference between the second braid angle and the first braid angle is 0.1-0.3. This arrangement ensures the reliable performance of the reinforcing fiber layer 12 formed by the first and second aramid braided layers, thereby ensuring the reliability of the entire hose 17.

[0096] In one embodiment, the second braid angle of the second aramid braid layer is 54.5-55 degrees, and the first braid angle of the first aramid braid layer is 0.1-0.3 degrees smaller than the second braid angle. The braiding angle can be adjusted accordingly during use. During braiding, the braiding stroke T can be calculated using T = πD / tanα, where D is the outer diameter of the current aramid braid layer and α is the aramid braid angle of the aramid braid layer.

[0097] The above completes the structural introduction of the entire hose assembly. Next, the manufacturing and use effects of this hose assembly will be explained in detail.

[0098] Taking the inner diameter of the hose assembly as an example, the braiding angle ɑ1 of the second layer of aramid is 54.7 degrees, the outer diameter is 17.9 mm, and the calculated braiding stroke is 35.6; the braiding angle ɑ2 of the first layer of aramid is 54.9 degrees, the outer diameter is 20 mm, and the calculated braiding stroke is 39.8;

[0099] The design calculation of the pipe structure is as follows:

[0100] Taking the hose assembly Φ13mm×25MPa (standard bursting pressure PB is 100MPa) as an example, different specifications of skeletons are selected, the aramid specification is 3160D, and the wire rope 13 specification is 1-3mm.

[0101] Among them, the calculation formula for compressive strength is:

[0102] ;

[0103] Among them, P B is the bursting pressure, MPa; K is the calculation coefficient, which is 0.735; K b is the strength of a single wire, N; N is the number of spindles in the braiding machine; n is the number of wires on each spindle; i is the number of braided layers; D is the average diameter of the hose 17, mm, where the average diameter also refers to the diameter of the tube body at the radial middle position.

[0104] According to the above formula and the determined weaving method, P is calculated. B =131.8MPa, which meets the requirement of set bursting pressure of 100MPa, that is, it has good performance.

[0105] The sealing performance was verified by controlling whether the skeleton layer had steel wire rope 13, and setting the diameter of the steel wire rope 13 and the size of the aramid specifications. The results are shown in the following table:

[0106]

[0107] From the above experiments, it can be seen that the first to fourth groups can ensure good sealing performance, that is, under the premise that the aramid specification is 3160D, the sealing performance of the hose assembly can be guaranteed by adding two layers of aramid braided layers and adding steel wire rope 13.

[0108] After the sealing performance test, the tensile performance test was continued, and the results are as follows:

[0109]

[0110] As can be seen from the above table, the design of adding the steel wire rope 13 is beneficial to improving the pull-out resistance of the hose assembly and ensuring reliable performance.

[0111] From the above, it can be seen that the hose assembly provided by the present application can ensure corrosion resistance, reliable sealing and pull-out resistance, and each performance is significantly enhanced, so it has good use value.

[0112] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0113] The above describes in detail the hose assembly provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The above examples are intended only to facilitate understanding of the present invention's methods and core concepts. It should be noted that those skilled in the art will be able to make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications fall within the scope of protection of the claims.

Claims

1. A hose assembly, characterized in that: include: A hose (17) comprising a steel wire rope (13) and a structural layer wrapping the steel wire rope (13); A kit assembly comprises a first kit (1) and a second kit (5) which are nested, wherein the first kit (1) and the second kit (5) are respectively arranged on the outside and inside of the hose (17), the first kit (1) can press the hose (17) between the second kit (5) and the first kit (1) by squeezing the structural layer, and the inner cavity of the second kit (5) is tightly connected to the inner cavity of the hose (17) and is used for communicating with external equipment; A fastening assembly (16) is provided on a side of the first assembly (1) away from the hose (17) and is used to fasten the steel wire rope (13) located at the end of the hose (17) and passing through the first assembly (1) to the first assembly (1).

2. The hose assembly according to claim 1, characterized in that: The first set (1) is provided with at least one perforation slot (15) extending radially therethrough, the perforation slot (15) being arranged close to the end of the hose (17), and the perforation slot (15) being used for the steel wire rope (13) to pass through.

3. The hose assembly according to claim 2, characterized in that: A guide portion is provided on the outer periphery of the first set (1), and the guide portion is arranged in the axial direction and / or radial direction of the first set (1) and is used for guiding the installation of the steel wire rope (13) extending from the perforated groove (15) relative to the first set (1).

4. The hose assembly according to claim 1, characterized in that: A plurality of the fastening components (16) are arranged along the axial direction of the first set (1), and the fastening components (16) are arranged in a ring on the first set (1) to fasten the steel wire rope (13).

5. The hose assembly according to claim 1, characterized in that: The first set (1) is provided with a barbed protrusion (9) on one side close to the hose (17), and the second set (5) is provided with a snap-fit ​​portion (10) that can be nested in the barbed protrusion (9) on one side close to the hose (17), wherein the contact area between the snap-fit ​​portion (10) and the hose (17) is greater than the contact area between the barbed protrusion (9) and the hose (17).

6. The hose assembly according to claim 5, characterized in that: A plurality of the engaging portions (10) are axially arranged along the second set (5) to form a pagoda-shaped boss, and a recessed position of the pagoda-shaped boss corresponds to at least one of the barbed protrusions (9).

7. The hose assembly according to claim 6, characterized in that: At least one clamping portion (7) is provided at the end of the first set (1), and a clamping groove (6) is provided on the second set (5) to cooperate with the clamping portion (7), and the maximum distance between the pagoda-shaped boss and the axis of the second set (5) is smaller than the distance between the bottom plane of the clamping groove (6) and the axis of the second set (5).

8. The hose assembly according to any one of claims 1 to 7, characterized in that: It also includes a fastening nut (2), a step (4) in the fastening nut (2) and a card table (3) at the end of the second set (5) are connected in a cooperative manner, a movable distance is formed between the card table (3) and the end of the first set (1) close to the fastening nut (2), the fastening nut (2) moves within the movable distance, and after the fastening nut (2) and the external device are connected in place, the step (4) and the card table (3) are carded.

9. The hose assembly according to claim 8, characterized in that: The structural layer comprises: a reinforcing fiber layer (12), a weather-resistant protective layer (11) and an anti-corrosion lining layer (14) located on both sides of the reinforcing fiber layer (12), at least two of the reinforcing fiber layers (12) are arranged on both sides of the steel wire rope (13), and along the axial direction away from the hose (17), the anti-corrosion lining layer (14), the reinforcing fiber layer (12), and the weather-resistant protective layer (11) are arranged in sequence along the radial direction.

10. The hose assembly according to claim 9, characterized in that The reinforcing fiber layer (12) comprises a first aramid braided layer and a second aramid braided layer, and the steel wire rope (13) is located between the first aramid braided layer and the second aramid braided layer; The second aramid braided layer is arranged closer to the axial direction of the hose (17) than the first aramid braided layer, the second braiding angle of the second aramid braided layer is smaller than the first braiding angle of the first aramid braided layer, and the difference between the second braiding angle and the first braiding angle is 0.1-0.3.

Images