Hose assembly

Abstract

The utility model relates to the technical field of transportation pipelines, and discloses a hose assembly which comprises a hose and a connector assembly, and the hose comprises an inner metal framework, an inner blocking layer, a reinforcing layer, an anti-puncture layer, an anti-aging outer covering layer and an outer metal framework which are sequentially connected from inside to outside; the connector assembly comprises a connector body, a sleeve and a connecting assembly, a threaded part is arranged on the periphery of one end of the connector body, a clamping groove is formed in the periphery of the other end of the anti-aging outer coating connector body, one end of the hose is connected to the threaded part in a matched mode, the sleeve is arranged on the periphery of the connector body in a sleeving mode, and the hose is pressed between the sleeve and the anti-threaded part. A first sealing ring is arranged between the threaded part and the sleeve, and the connecting assembly is clamped in the clamping groove; the use reliability of the hose assembly can be guaranteed, and the service life of the hose is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of transportation pipeline, specifically relates to a hose assembly. BACKGROUND

[0002] The hose assembly is the connecting structure of the hose and its attached increase, can very conveniently butt joint with other equipment, and it is widely used in petroleum chemical industry.

[0003] However, in the actual use process, the hose assembly exposes a series of problems to be solved. In the prior art, the joint of the hose assembly often adopts a cam type locking joint, which has sliding and friction wear problems during locking. The stress points of the joint are only two points. When facing a large pressure and lateral force, leakage is prone to occur. More seriously, sliding friction wear will cause the joint gap to increase, eventually causing sealing failure, greatly reducing the use reliability of the hose assembly and reducing the service life of the hose. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a hose assembly, which has good use reliability and prolongs the service life of the hose.

[0005] In order to achieve the above purpose, the application provides a hose assembly, which comprises a hose and a joint assembly,

[0006] The hose comprises an inner metal framework, a pipe body and an outer metal framework connected in sequence from inside to outside, the inner and outer circumferential walls of the pipe body are provided with threaded grooves, and the inner metal framework and the outer metal framework are in the shape of a spiral adapted to the threaded grooves; the pipe body comprises an inner barrier layer, a reinforcing layer, a puncture-proof layer and an anti-aging outer cover layer arranged in sequence from inside to outside, the inner barrier layer is connected to the outer circumference of the inner metal framework, and the anti-aging outer cover layer is connected to the inner circumference of the outer metal framework;

[0007] The joint assembly is arranged at the end of the hose,

[0008] The joint assembly comprises a joint body, a sleeve and a connecting assembly, the joint body is in the shape of a cylinder, one end of the joint body has a threaded portion on the outer circumference, the other end of the joint body is provided with a clamping groove on the outer circumference, one end of the hose is connected to the threaded portion in a matching mode, the sleeve is sleeved on the outer circumference of the joint body and presses the hose between the sleeve and the threaded portion, a first sealing ring is arranged between the threaded portion and the sleeve, and the connecting assembly is clamped in the clamping groove.

[0009] As a preferred technical scheme, the joint assembly further comprises a clamp, one end of the clamp is provided with a clamping portion along the inner periphery of the clamp, the clamping portion is matched and clamped in the clamping groove, and the inner periphery of the clamp is pressed and combined with the outer periphery of the joint body with a second sealing element.

[0010] As a preferred technical scheme, the clamp comprises two clamp bodies in a semicircular shape, the two clamp bodies are sequentially connected head to tail, each of the two ends of the clamp body is provided with a connecting portion, a gap is defined between each of the two opposite connecting portions, the width of the gap gradually increases from the inner side of the clamp to the outer side of the clamp, a connecting hole is formed on the connecting portion, and a fastener sequentially penetrates through the two opposite connecting holes to connect the two opposite connecting portions.

[0011] As a preferred technical scheme, the outer periphery of the joint body is provided with a limiting boss between the clamping groove and the threaded portion.

[0012] As a preferred technical scheme, the puncture-proof layer comprises a plurality of glass fiber layers and a plurality of aramid fiber layers, the plurality of glass fiber layers and the plurality of aramid fiber layers are sequentially stacked, and the glass fiber layers and the aramid fiber layers are bonded by an adhesive.

[0013] As a preferred technical scheme, the glass fiber layers and the aramid fiber layers are sequentially stacked in 3-5 layers.

[0014] As a preferred technical scheme, the thickness of the puncture-proof layer is 40% of the thickness of the pipe body.

[0015] As a preferred technical scheme, the thickness of the puncture-proof layer is 2-3 mm.

[0016] As a preferred technical scheme, the inner barrier layer, the reinforcing layer, and the anti-aging outer cover layer each comprise a plurality of polymer films, the plurality of polymer films are sequentially stacked, and adjacent two polymer films are bonded by an adhesive.

[0017] As a preferred technical scheme, the pitches of the inner metal skeleton and the outer metal skeleton are the same, and the inner metal skeleton and the outer metal skeleton are staggered.

[0018] The above technical scheme provides a hose assembly, which has the following beneficial effects compared with the prior art:

[0019] 1. The joint assembly is composed of a joint body, a sleeve and a connecting assembly, one end of the joint body has a threaded portion on the outer periphery, the other end has a clamping groove on the outer periphery, the open end of the hose is connected to the threaded portion, the sleeve is sleeved on the outer periphery of the joint body and the hose is pressed between the sleeve and the threaded portion, a first sealing ring is arranged between the threaded portion and the sleeve, and the connecting assembly is clamped in the clamping groove, thereby replacing the traditional cam type locking joint, enhancing the sealing performance of the overall structure, effectively preventing the liquid in the hose from leaking during use, and ensuring the use reliability of the hose assembly.

[0020] 2. The hose is composed of an inner metal skeleton, an inner barrier layer, a reinforcing layer, a puncture-proof layer, an anti-aging outer cover layer and an outer metal skeleton, the multi-layer structure has excellent wear resistance, effectively increasing the service life of the hose. BRIEF DESCRIPTION OF DRAWINGS

[0021] The present application will be further described in detail below in conjunction with the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of explaining the preferred embodiments and therefore should not be regarded as limiting the scope of the present application. In addition, unless specifically indicated, the drawings are only intended to conceptually represent the composition or structure of the described object and can include exaggerated display, and the drawings are not necessarily drawn to scale.

[0022] Figure 1 is a partial sectional view of the hose assembly of the utility model;

[0023] Figure 2 is a sectional view of A of the utility model;

[0024] Figure 3 is a sectional view of B of the utility model;

[0025] Figure 4 is a front view of the hose assembly of the utility model;

[0026] Figure 5 is a structure schematic view of the puncture-proof layer of the utility model;

[0027] Wherein: 1, the hose; 11, the inner metal skeleton; 12, the outer metal skeleton; 13, the pipe body; 130, the inner barrier layer; 131, the reinforcing layer; 132, the puncture-proof layer; 1320, the glass fiber layer; 1321, the aramid fiber layer; 133, the anti-aging outer cover layer; 2, the joint assembly; 21, the joint body; 210, the clamping groove; 211, the limiting boss; 22, the sleeve; 23, the connecting assembly; 230, the clamp; 2301, the clamping part; 2302, the connecting part; 2303, the clamp body; 231, the fastener; 3, the first sealing ring; 4, the second sealing member. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present application will be described in detail below with reference to the attached drawings. It will be appreciated by those skilled in the art that the description is merely descriptive, illustrative and should not be interpreted as limiting the scope of protection of the present application.

[0029] First of all, it should be noted that the top, bottom, upward, downward and other orientations mentioned herein are defined with respect to the direction in the respective drawings, which are relative concepts and thus can change according to different positions and different practical states. Therefore, these or other orientations should not be used as restrictive terms.

[0030] It should be noted that the term "comprising" does not exclude other elements or steps, and "a" or "one" does not exclude a plurality.

[0031] In addition, it should also be pointed out that for any single technical feature described or implied in the embodiments herein, or any single technical feature shown or implied in the drawings, combinations between these technical features (or their equivalents) can still be continued, so as to obtain other embodiments of the present application which are not directly mentioned herein.

[0032] In addition, it should be understood that the terms "first", "second" and the like are used herein to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, the "first" information can also be referred to as "second" information without departing from the scope of the present application, and similarly, the "second" information can also be referred to as "first" information.

[0033] The specific embodiments of the present application will be further described in detail below with reference to the drawings and examples. The following examples are used to illustrate the present application, but not to limit the scope of the present application.

[0034] Please refer to Figures 1-5 A hose assembly provided by the embodiments of the present application comprises a hose 1 and a joint assembly 2,

[0035] The hose 1 comprises an inner metal skeleton 11, a pipe body 13 and an outer metal skeleton 12 connected in sequence from inside to outside, the inner and outer circumferential walls of the pipe body 13 are provided with thread grooves, the inner metal skeleton 11 and the outer metal skeleton 12 are in the shape of a spiral adapted to the thread grooves; the pipe body 13 comprises an inner barrier layer 130, a reinforcing layer 131, a puncture-proof layer 132 and an anti-aging outer cover layer 133 arranged in sequence from inside to outside, the inner barrier layer 130 is connected to the outer circumferential wall of the inner metal skeleton 11, and the anti-aging outer cover layer 133 is connected to the inner circumferential wall of the outer metal skeleton 12; wherein the inner metal skeleton 11 and the outer metal skeleton 12 are steel wire coils arranged in the thread grooves of the inner and outer circumferential walls of the pipe body 13 to clamp and compact the pipe body 13, so as to ensure the connectivity and structural strength of the whole hose 1. The pipe body 13 specifically comprises an inner barrier layer 130, a reinforcing layer 131, a puncture-proof layer 132 and an anti-aging outer cover layer 133 arranged in sequence from inside to outside, the multi-layer structure makes the pipe body 13 have better wear resistance and effectively improves the service life of the hose 1.

[0036] The joint assembly 2 is arranged at the end of the hose 1, and comprises a joint body 21, a sleeve 22 and a connecting assembly 23; the joint body 21 is in the shape of a cylinder, the outer circumferential wall of one end of the joint body 21 is provided with a threaded part, the outer circumferential wall of the other end of the joint body 21 is provided with a clamping groove 210, one end of the hose 1 is connected to the threaded part in a matching manner, the sleeve 22 is arranged on the outer circumferential wall of the joint body 21 and presses the hose 1 between the sleeve 22 and the threaded part, a first sealing ring 3 is arranged between the threaded part and the sleeve 22, and the connecting assembly 23 is clamped in the clamping groove 210.

[0037] In this embodiment, the open end of the hose 1 is connected to the threaded part in a matching manner, the threads of the outer metal skeleton 12 are adapted to the threads of the threaded part, the sleeve 22 is arranged on the outer circumferential wall of the joint body 21 and presses the hose 1 between the sleeve 22 and the threaded part, so as to realize reliable connection of the hose 1 and the joint body 21; the first sealing ring 3 is arranged between the threaded part and the sleeve 22, so as to further strengthen the sealing property among the sleeve 22, the hose 1 and the joint body, and effectively prevent the liquid in the hose 1 from leaking at the connection between the hose 1 and the joint body 21. The connecting assembly 23 is clamped in the clamping groove 210 at one end of the joint body 21, compared with the traditional cam type locking joint, there is no problem of sliding and frictional wear in the locking process, the joint is uniformly stressed, and no leakage occurs when facing large pressure and lateral force.

[0038] In the embodiment, the joint assembly 2 preferably uses a clamp 230, one end of the clamp 230 is provided with a clamping portion 2301 along the inner periphery, the clamping portion 2301 is matched and clamped in the clamping groove 210, and the inner periphery of the clamp 230 is pressed with the outer periphery of the joint body 21 with the second sealing member 4. The clamp 230 can generate a larger holding force through fastening bolts and other components, tightly fix the external device and the joint body 21 together, effectively prevent the loosening or falling of the connecting portion 2302, and ensure the reliability of the connection. When installing, only need to put the clamp 230 in the clamping groove 210, then tighten the bolt to complete the connection, without complex tools and professional skills, simple operation, can greatly improve the installation efficiency. When the connected device needs to be repaired, replaced or adjusted, only need to loosen the bolt of the clamp 230, then the clamp 230 can be conveniently taken off, so as to separate the connected components, facilitate the maintenance and upgrading of the device. In addition, the clamp 230 has various specifications and materials to choose from, which can be selected according to the size, shape and use environment of the external device. The clamp 230 is used with the sealing ring in the application, the sealing ring is deformed by the uniform holding force, so as to realize good sealing effect and prevent liquid leakage.

[0039] Further, the clamp 230 includes two semicircular clamp bodies 2303, the two clamp bodies 2303 are sequentially connected end to end, the two ends of the clamp body 2303 are respectively provided with a connecting portion 2302, a gap is defined between each two opposite connecting portions 2302, the width of the gap gradually increases from the inner side of the clamp 230 to the outer side of the clamp 230, a connecting hole is formed on the connecting portion 2302, and a fastener 231 sequentially penetrates through the opposite connecting holes to connect the opposite connecting portions 2302. That is, the opposite side of the opposite connecting portions 2302 is provided as an inclined surface to form an inclined opening after the two connecting portions 2302 are connected. The inclined opening changes the contact mode between the clamp 230 and the fastened object. During the fastening process, the inclined opening is extruded at a certain angle with the surface of the fastened object, so that the normal pressure on the contact surface increases, the friction force also increases, which helps to resist the sliding tendency of the clamp 230 during fastening, thereby increasing the pre-tightening force. Also, the clamp 230 can be more closely attached to the surface of the pipeline to prevent the pipeline from loosening under pressure. In addition, the inclined opening design enables the clamp 230 to quickly reach a higher pre-tightening force during the fastening process. Compared with the flat opening clamp 230, the inclined opening clamp 230 can be tightened faster when tightening the fastener 231 due to the guiding and extruding effect of the inclined opening, which reduces the energy loss and deformation during the fastening process, thereby more effectively converting the fastening force into the pre-tightening force, improving the fastening efficiency and the size of the pre-tightening force.

[0040] Further, the outer periphery of the joint body 21 is provided with a limiting boss 211 between the clamping groove 210 and the threaded portion, the sleeve 22 is in interference fit with the joint body 21, and the limiting boss 211 can limit the sleeve 22 and leave a suitable connecting position for the connecting assembly 23.

[0041] Further, the puncture-proof layer 132 comprises a plurality of glass fiber layers 1320 and a plurality of aramid fiber layers 1321, the plurality of glass fiber layers 1320 and the plurality of aramid fiber layers 1321 are sequentially stacked, and the glass fiber layers 1320 and the aramid fiber layers 1321 are bonded by an adhesive. The glass fiber has good tensile strength and toughness, the aramid fiber has good tensile strength, cutting resistance and wear resistance, and the puncture-proof layer 132 made of glass fiber and aramid fiber can provide strong puncture-proof protection for the hose 1, so that the hose 1 can maintain good performance when facing various harsh environments and sharp object impacts, and the use reliability and safety of the hose 1 are ensured.

[0042] In the present application, the glass fiber layer 1320 and the aramid fiber layer 1321 are sequentially stacked for 3-5 layers, and the thickness of the puncture-proof layer 132 is 2-3 mm, so that the thickness of the puncture-proof layer is 40% of the thickness of the entire composite hose 1. Increasing the thickness of the puncture-proof layer 132 means that there are more fiber materials to resist the impact and puncture of sharp objects. In complex environments such as fields, mountains or construction sites, a thicker puncture-proof layer 132 can better cope with the frequent impact of sand, thorns, nails, etc., reduce the risk of being penetrated, and more effectively protect the hose 1. Controlling the thickness of the puncture-proof layer 132 can ensure the protection effect while avoiding the negative effects of excessive thickness. If the puncture-proof layer 132 is too thick, although the protection performance will be improved, the flexibility of the hose 1 may be reduced, and the weight and cost may be increased. Therefore, the inventors have obtained the best number of stacked layers of the glass fiber layer 1320 and the aramid fiber layer 1321 through many experiments, which is 3-5 layers, and the best thickness of the puncture-proof layer 132 is 2-3 mm. By accurately controlling the thickness, the best balance point between puncture-proof performance, flexibility, weight and cost can be found, and the hose 1 can efficiently operate in various working conditions.

[0043] Further, the inner barrier layer 130, the reinforcing layer 131 and the anti-aging outer cover layer 133 each comprise a plurality of polymer films, and the adjacent two polymer films are sequentially stacked and bonded by an adhesive. Specifically, the inner barrier layer 130 is made of a polytetrafluoroethylene film, a polyethylene film or the like, so as to have good corrosion resistance and sealing performance, and can adapt to different conveying environments; the reinforcing layer 131 is made of an aramid fiber reinforced polymer film or a polyester fiber reinforced polymer film, so as to have good strength and pressure resistance, and also has flexibility and tensile resistance, so that it is not easy to be damaged in bending, stretching and other operations, thereby prolonging the service life of the hose 1; the anti-aging outer cover layer 133 is made of a polyurethane film, a polyvinyl chloride film or the like, so as to have good wear resistance, anti-aging performance and insulation performance, so as to cope with the friction of sharp objects such as sand and thorns in complex environments such as wild mountains and construction sites, prevent the internal structure of the hose 1 from being damaged, and resist the erosion of environmental factors such as ultraviolet rays and oxygen, thereby prolonging the service life of the hose 1.

[0044] Further, the inner metal skeleton 11 and the outer metal skeleton 12 have the same pitch, and the inner metal skeleton 11 and the outer metal skeleton 12 are staggered. The inner metal skeleton 11 and the outer metal skeleton 12 can clamp and compact the inner barrier layer 130, the reinforcing layer 131, the puncture-resistant layer 132 and the anti-aging outer cover layer 133, and further ensure the connectivity and structural strength of the whole.

[0045] In summary, the hose assembly provided by the embodiment comprises the inner metal skeleton 11, the inner barrier layer 130, the reinforcing layer 131, the puncture-resistant layer 132, the anti-aging outer cover layer 133 and the outer metal skeleton 12 to form the hose 1, and the sleeve 22 is arranged on the connector body 21, and the sealing ring is arranged between the sleeve 22 and the connector body 21. The above arrangement can effectively prolong the service life of the hose 1 and improve the use reliability of the hose assembly.

[0046] This specification discloses the present application with reference to the accompanying drawings, and also enables those skilled in the art to implement the present application, including manufacturing and using any device or system, using appropriate materials, and using any combined method. The scope of the present application is defined by the claimed technical solutions, and includes other examples that those skilled in the art can think of. As long as such other examples include structural elements that are not different from the literal language of the claimed technical solutions, or such other examples contain equivalent structural elements that are not substantially different from the literal language of the claimed technical solutions, such other examples should be considered to be within the protection scope determined by the claimed technical solutions of the present application.

Claims

1. A hose assembly characterized by, The utility model relates to a hose and joint assembly, and relates to the technical field of hoses. The hose comprises an inner metal skeleton, a pipe body and an outer metal skeleton connected in sequence from inside to outside, the inner and outer circumferential walls of the pipe body are provided with thread grooves, and the inner and outer metal skeletons are in the shape of a spiral that matches the thread grooves. The joint assembly is arranged at the end of the hose. The joint assembly comprises a joint body, a sleeve and a connecting assembly, the joint body is in the shape of a cylinder, the outer circumferential wall of one end of the joint body is provided with a threaded part, the outer circumferential wall of the other end of the joint body is provided with a clamping groove, one end of the hose is connected to the threaded part in a matching manner, the sleeve is arranged around the outer circumferential wall of the joint body and presses the hose between the sleeve and the threaded part, a first sealing ring is arranged between the threaded part and the sleeve, and the connecting assembly is clamped in the clamping groove. The joint assembly further comprises a clamp, one end of the clamp is provided with a clamping part along the inner circumferential wall, the clamping part is clamped in the clamping groove in a matching manner, and the inner circumferential wall of the clamp is pressed against the outer circumferential wall of the joint body with a second sealing member.

2. The hose assembly of claim 1, wherein, The clamp comprises two clamp bodies in the shape of a semicircle, the two clamp bodies are connected in sequence in a head-to-tail manner, each of the two ends of the clamp body is provided with a connecting part, a gap is defined between each pair of opposite connecting parts, the width of the gap gradually increases from the inner side of the clamp to the outer side of the clamp, a connecting hole is arranged on the connecting part, and a fastener passes through the opposite connecting holes in sequence to connect the opposite connecting parts.

3. The hose assembly of claim 2, wherein, The outer circumferential wall of the joint body between the clamping groove and the threaded part is provided with a limiting boss.

4. The hose assembly of claim 1, wherein, The puncture-resistant layer comprises a plurality of glass fiber layers and a plurality of aramid fiber layers, the glass fiber layers and the aramid fiber layers are arranged in sequence in a superimposed manner, and the glass fiber layers and the aramid fiber layers are bonded by an adhesive.

5. The hose assembly of claim 1, wherein, The glass fiber layers and the aramid fiber layers are arranged in sequence in 3-5 layers.

6. The hose assembly of claim 5, wherein, The thickness of the puncture-resistant layer is 40% of the thickness of the pipe body.

7. The hose assembly of claim 5, wherein, The thickness of the puncture-resistant layer is 2-3 mm.

8. The hose assembly of claim 7, wherein, The inner barrier layer, the reinforcing layer and the anti-aging outer cover layer each comprise a plurality of polymer films, the polymer films are arranged in sequence in a superimposed manner, and adjacent polymer films are bonded by an adhesive.

9. The hose assembly of claim 1, wherein, The pitch of the inner metal skeleton and the outer metal skeleton is the same, and the inner metal skeleton and the outer metal skeleton are arranged in an interlaced manner.

10. The hose assembly of claim 1, wherein, ​

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