KR200494752Y1 - A hose assembly for fluid transfer of tripple structure - Google Patents

Abstract

The present invention relates to a hose assembly for transporting fluids having a triple structure, in which the hose for fluid transport has an inner tube made of Teflon or PFA material, an aramid intermediate tube and polyvinyl chloride (PVC) It has a triple structure of the exterior of the material, so it is strong against external shocks such as scratches and dents, and the adapter for fluid transfer is easily fixed and installed only with a sleeve tube, so the existing fixing ring can be eliminated, thereby simplifying the overall structure In order to provide a hose assembly for fluid transport of a triple structure that can be configured in a convenient manner and can reduce manufacturing costs, the technical configuration is, in the hose assembly for fluid transport, a tube-shaped inner tube and an outer tube A fluid transport hose formed in a triple structure including an outer tube-shaped outer tube that is extrapolated to a structure surrounding the inner tube on the periphery, and an intermediate tube interposed between the inner tube and the outer tube; Doedoe interpolated into the inner tube of the fluid transfer hose, an adapter for connecting the space of the inner tube by connecting to a separate facility; and a sleeve tube for fixing the adapter inserted into the inner tube; It is characterized in that it includes.

Description

A hose assembly for fluid transfer of triple structure

The present invention relates to a hose assembly for transferring fluid, and more particularly, it has good flexibility, chemical resistance and durability, so that it can effectively respond to stress applied from the outside, and it is easy to respond to the pressure of the fluid by increasing the working pressure. stable flow is possible, and it is strong against damage caused by scratches and dents, so it does not expand in the damaged area, so fluid leakage can be minimized. it's about

In general, in industrial sites, various types of transfer hoses are applied to use or handle various types of fluids.

These transfer hoses are applied to manufacturing processes and devices such as semiconductors, liquid crystal displays (LCDs), and light-emitting diodes (LEDs) to transport fluids in the form of chemical solvents, gases, and refrigerants, with durability and leakage It should be manufactured in a structure that can minimize the risk of

That is, since the transferred fluid is harmful to the human body and a safety accident may occur when leaked, a transfer hose having a structure that can prevent leakage of fluid and a structure that can minimize leakage is required, and for this purpose, a multi-layer structure is required. And a transfer hose with secured flexibility is required.

According to the above-mentioned requirements, various hose assemblies for transport that can provide durability and flexibility at the same time for safe transport of fluid have been proposed. is disclosed.

Here, the hose assembly for fluid transport is a fluid transport hose assembly for connecting the fluid transport hose to one end of a connector, the end of the hose is coupled to one side of the body, and a first connector having a smaller diameter than the body a hollow connector in which a second connector is formed, the other side of the body is coupled to another coupling element, and a second connector is formed on the outer circumferential surface of the first connector to be spaced apart from the body and to which a locking protrusion is formed; a reinforcing pipe having a hose positioned therein so as to enclose the hose, the end of which is coupled to the first connecting pipe at an end position of the hose; a first clamp coupled to an end of the reinforcing pipe to clamp the hose and the reinforcing pipe to the first connecting pipe, and a first clamp having a stopping piece hooked on the stopping protrusion at the end thereof; a transparent tube positioned inside the hose, the reinforcing tube, and the first clamp to be surrounded, the end of which is coupled to the body, and formed of a soft transparent material; It has a cylindrical shape and is coupled to the outside of the end of the transparent tube, and is made to include a second clamp for fixing the transparent tube to the body.

For this reason, even if a fluid leak occurs in the hose and the reinforcing pipe, the leak can be visually confirmed through the transparent tube, and replacement and repair are possible after the operator confirms the leak.

In addition, Republic of Korea Utility Model Registration No. 20-0454175, "a fluid transport hose for semiconductor process" is disclosed, and the fluid transport hose for semiconductor process is used for transporting or supplying various types of chemical fluids in semiconductor manufacturing or processing processes. In the fluid transport hose for a semiconductor process for: a main pipe formed of carbon black-containing polytetrafluoroethylene (CARBONBLACK FILLPOLYTETRAFLUOROETHYLENE) to prevent acidification or deterioration by fluid, and a corrugated pipe to maintain rigidity and flexibility; a mesh tube formed of nylon synthetic fibers to protect the main tube and enclose the entire main tube to insulate the fluid transferred into the main tube; It is formed to surround the entire exterior of the mesh pipe to protect the main pipe and the mesh pipe and to prevent interference of peripheral devices by the mesh pipe, and to maintain the flexibility of the entire fluid transfer hose for ease of installation and prevent fluid leakage Appearance formed of silicone synthetic fiber rubber; A connection part interpolated into the end of the main pipe to communicate with the interior of the main pipe, and a connection part which communicates integrally with the connection part and protrudes to the outside so as to supply the fluid transferred or supplied to the interior of the main pipe to the device or other fluid transport hose, the connection part and the connection part a sleeve integrally formed with and integrally provided with a sleeve in which an end of the main tube and an end of the mesh tube are inserted and fixed, and an end of the outer surface is surfaced; and a fastening member fastened to one end of the outer tube and the outer side of the sleeve so as to condense the main tube, the mesh tube and the outer tube to prevent leakage of the fluid and connect and fix the outer tube to the sleeve.

Accordingly, the gap between the main pipe and the mesh pipe and the sleeve is blocked to prevent leakage of fluid.

However, as described above, the hose assemblies have a structure in which a plurality of tubes are simply stacked to surround the inner tube, and the assembly of the tubes is formed by extrapolating another tube to the outside of the tube. When the fluid leaks due to damage because the connection between the pipe and the tube is not dense, the damaged area is expanded by the pressure of the leaking fluid, which increases the risk.

In addition, since the coupling of the tube and the tube is made mechanically, there is a problem in that the production efficiency is lowered and it is uneconomical.

On the other hand, in order to solve the above-described problems, Republic of Korea Patent No. 10-1340282, "a hose assembly for fluid transport and a manufacturing method thereof" is disclosed, and as shown in FIG. 1, for fluid transport The hose assembly (1) includes an inner tube (2) made of synthetic fiber and an outer tube (3) made of synthetic resin, and the inner tube (2) and the outer tube (3) are fusion-bonded, wherein the inner tube (2) is made of Teflon material made of, and the exterior 3 is made of a silicone material.

And, on the outer peripheral surface of both ends of the inner tube (2), the sleeve tube (7) with the engaging projection (6) extending inwardly in the space between the outer tube (3) and the outer tube (2) is interpolated, and the engaging groove (8) formed on the outer peripheral surface of the adapter (4) ) and fixed, and both ends of the outer tube 3 are formed to extend outward more than the both ends of the inner tube 2, and are pressed toward the adapter 4 in a state that surrounds and accommodates the outer peripheral surface of the adapter 4 It is a configuration that is fixed through the fixing ring (9).

Due to this configuration, even when an external environment such as bending and pressing occurs, it is elastically deformed and is not damaged, so that the flow of the fluid can be stably maintained. Accordingly, since the damaged area is prevented from expanding, there is an advantage in that leakage of fluid can be minimized.

However, in the case of the hose assembly for fluid transfer as described above, it is formed in a double tube shape, and since the exterior of the silicone material is installed on the outer surface of the inner tube made of Teflon, there is a problem that it is vulnerable to damage due to external impacts such as scratches and dents. .

In addition, since the adapter is fixed to the hose for transferring the fluid by a separate fixing ring that compresses the sleeve tube and the adapter, the overall structure is complicated, and there is a problem in that the cost for manufacturing the fixing ring is generated.

Republic of Korea Patent No. 10-1340282

The present invention is to solve the above problems, and the fluid transfer hose is made of a Teflon material or PFA material inner tube, an aramid material intermediate tube, and a polyvinyl chloride (PVC) material. The three-layer structure of the exterior is strong against external impacts such as scratches and dents, and the adapter for fluid transfer is easily fixed and installed only with a sleeve pipe, so the existing fixing ring can be eliminated, thereby simplifying the overall structure An object of the present invention is to provide a hose assembly for transporting a fluid having a triple structure capable of reducing manufacturing costs.

In addition, the present invention has a spiral corrugation formed on the inner tube, so it has excellent flexibility and elastically deforms when an external environment such as bending and pressing occurs, so that the fluid flows more stably, and the exterior is made of a polyvinyl chloride material. The stress applied to the inner tube can be reduced, so the durability is improved, which effectively responds to the stress applied from the outside. An object of the present invention is to provide a hose assembly for transferring fluid having a triple structure capable of minimizing the generation of conduction and particles.

In addition, the present invention is flexible (flexibly deformed) even when an external environment such as bending and pressing occurs to stabilize the flow of fluid, and even if damage such as breakage occurs, expansion of the damaged area does not occur, so fluid leakage An object of the present invention is to provide a hose assembly for transporting a fluid having an economically advantageous triple structure by increasing production efficiency due to simple manufacturing.

In addition, the technical tasks to be achieved by the present invention are not limited to the technical tasks mentioned above, and other technical tasks not mentioned are clearly understood by those of ordinary skill in the art to which the present invention belongs from the description below. it could be

In order to achieve the object as described above, the present invention, in a hose assembly for transferring a fluid, includes a tube-shaped inner tube, a tube-shaped outer tube that is extrapolated to a structure surrounding the inner tube on the outer periphery of the inner tube, and between the inner tube and the outer tube A hose for conveying fluid formed in a triple structure including an intermediate pipe interposed in the; Doedoe interpolated into the inner tube of the fluid transfer hose, an adapter for connecting the space of the inner tube by connecting to a separate facility; and a sleeve tube for fixing the adapter inserted into the inner tube; It is characterized in that it includes.

Preferably, the inner tube is made of any one of a Teflon (Teflon) material or a perfluoroalkoxy (PFA: Perfluoroalkoxy) material.

Preferably, the exterior is made of a polyvinyl chloride (PVC: Polyvinyl chloride) material.

Preferably, the intermediate tube is made of an aramid material.

Here, on the outer periphery of the inner tube, a plurality of helical wrinkles are formed protruding in the longitudinal direction on the outer periphery of the remaining portions except for both end sides thereof.

In addition, the adapter has a plurality of wedge-shaped support pieces protruding from one end of the outer periphery, and the support piece is formed in a wedge shape that is inclined to decrease in diameter in the insertion direction of the adapter, and a locking groove is formed on the outer periphery of the adapter. , the locking grooves are formed in a plurality of spaced apart from the other side of the support piece at regular intervals.

In addition, the sleeve tube has a locking protrusion protruding toward the inside on the inner periphery of one end thereof, and the insertion groove is formed stepwise on the inner periphery of the other end thereof.

As described above, the present invention having the above configuration has a spiral wrinkle formed on the inner tube and has excellent flexibility, so that when an external environment such as bending and pressing occurs, the present invention is flexible and elastically deformed to prevent the fluid from being deformed. It flows more stably, and the exterior is formed to reduce the stress applied to the inner tube, so the durability is improved. It is easy to use and has a triple structure, so it is strong against external impacts such as scratches and dents. The adapter is easily fixed and installed only with a sleeve tube to the fluid transport hose, and the overall structure is simple to increase production efficiency and reduce manufacturing costs. It is economically advantageous, is formed of a non-conductive material, can minimize the generation of particles, has good chemical resistance, has good durability and flexibility, and is particularly suitable for semiconductor manufacturing equipment. can reap

1 is a cross-sectional view schematically showing a hose assembly for transferring a fluid according to the prior art;
2 is a cross-sectional view schematically showing a hose assembly for transporting a fluid having a triple structure according to the present invention;
3 is an enlarged cross-sectional view of a part of a hose assembly for transferring fluid having a triple structure according to the present invention;
4 is a cross-sectional view schematically illustrating an embodiment of a hose assembly for transferring fluid having a triple structure according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, this embodiment does not limit the scope of the present invention, but is presented only as an example, and various changes are possible within the scope that does not deviate from the technical gist thereof.

Since the present invention can make various changes and can have various embodiments, specific embodiments are illustrated in the drawings and described in the detailed description.

However, this is not intended to limit the present invention to specific embodiments, and it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. In describing each figure, like reference numerals have been used for like elements.

The terms used herein are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the second component may be referred to as the first component, and similarly, the first component may also be referred to as the second component. and/or includes a combination of a plurality of related listed items or any of a plurality of related listed items.

When an element is referred to as being “connected” or “connected” to another element, it is understood that it may be directly connected or connected to the other element, but other elements may exist in between. it should be On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that the other element does not exist in the middle.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Also, terms such as “unit”, “unit”, and “module” described in the specification mean a unit that processes at least one function or operation, which may be implemented as hardware or software or a combination of hardware and software.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. 2 is a cross-sectional view schematically showing a hose assembly for transferring fluid of a triple structure according to the present invention, and FIG. 4 is a cross-sectional view schematically illustrating an embodiment of a hose assembly for transferring fluid having a triple structure according to the present invention.

As shown in the drawing, the hose assembly 100 for fluid transport of the triple structure according to the present invention is interpolated into the fluid transport hose 110 and the fluid transport hose 110, and a separate facility (not shown) City) and includes an adapter 130 for connecting the inner space of the hose 110 for fluid transport and a sleeve pipe 150 for fixing the adapter 130 interpolated into the hose 110 for fluid transport.

The fluid transport hose 110 includes an inner tube 111 in the form of a tube, an outer tube 115 installed in a structure surrounding the inner tube 111 on the outer periphery of the inner tube 111, and the inner tube 111 ) and the exterior 115, including the intermediate tube 117 inserted to be interposed between the triple structure.

The inner tube 111 is preferably in the form of a tube, made of any one of a Teflon material or a perfluoroalkoxy (PFA) material.

Here, Teflon forms a very stable compound due to the strong chemical bond between fluorine and carbon, and thus has properties such as chemical inertness, heat resistance, non-adhesiveness, excellent insulation stability and low coefficient of friction.

And, perfluoroalkoxy is a copolymer of tetrafluoroethylene and perfluoroether, which has excellent heat resistance, chemical resistance and electrical properties, optical properties, flame retardancy, and barrier properties, weather resistance, non-adhesive properties and Excellent lubricity.

On the other hand, in the inner tube 111, a plurality of spiral corrugations 112 are formed to protrude in the longitudinal direction of the outer periphery of the remaining parts except for the outer periphery of both ends.

In this way, the helical corrugation 112 is formed to protrude in the inner tube 111, thereby improving flexibility.

In one embodiment of the present invention, a plurality of helical corrugations 112 are protruded in the longitudinal direction of the remaining outer periphery except for the outer periphery of both ends of the inner tube 111, but the outer tube of the inner tube 111 is formed. It is also possible that a plurality of helical corrugations 112 are protruded along the entire periphery in the longitudinal direction thereof.

In addition, in one embodiment of the present invention, a plurality of helical pleats 112 are protruded in the longitudinal direction on the outer periphery of the inner tube 111 , but annular spiral pleats 112 are formed on the outer periphery of the inner tube 111 . ) It is also possible that a plurality of protrusions are formed in the longitudinal direction, and a plurality of helical corrugations 112 are protruded in the longitudinal direction on the outer periphery of the inner tube 111, and another helical wrinkle 112 is crossed to face each other. It is also possible to form a plurality of protrusions in the longitudinal direction so as to form a lattice shape as a whole, and a plurality of annular corrugations 112 are formed on the outer periphery of the inner tube 111 to protrude in the longitudinal direction, the inner tube 111 ) It is also possible that the protruding piece is formed to be long in the longitudinal direction on the radial side of the outer periphery, but it is not limited thereto and various modifications are possible.

On the other hand, both end sides of the inner tube 111 in which the helical pleats 112 are not protruded are made to contact and couple to the outer periphery of the adapter 130 .

The exterior 115 is installed in a structure surrounding the outer periphery of the inner tube 111, and is made of a polyvinyl chloride (PVC) material.

Preferably, the exterior 115 is made of a transparent and soft polyvinyl chloride material.

Here, polyvinyl chloride is a homopolymer of vinyl chloride and an interpolymer containing 50% or more of vinyl chloride, and has excellent cold resistance and strength, and is easy to extrude.

The intermediate tube 117 is inserted and installed between the inner tube 111 and the outer tube 115, and is inserted into the outer periphery of the inner tube 111 and the inner periphery of the outer tube 115, and is made of an aramid material.

Here, aramid is a polyamide fiber, and has excellent tensile strength, toughness, heat resistance and elasticity.

As described above, the intermediate tube 117 is inserted between the inner tube 111 and the outer tube 115 so that the inner periphery abuts against the spiral corrugation 112 protruding from the outer periphery of the inner tube 111 . As a result, the contact area between the inner tube 111 and the intermediate tube 117 is increased, so that the inner tube 111 and the intermediate tube 117 are more densely and firmly fused or compressed.

In addition, even if deformation such as bending occurs, the difference in the bending area of the intermediate tube 117 with respect to the bending area of the inner tube 111 is minimized to prevent the inner tube 111 and the intermediate tube 117 from being separated from each other. can be stable

In addition, the intermediate tube 117 made of an aramid material can be installed directly on the outer periphery of the inner tube 111 by braiding, thereby increasing the working pressure.

Here, the intermediate tube 117 is preferably formed by weaving fibers of an aramid material in a lattice form, but is not limited thereto, and other various modifications are possible.

As described above, when the intermediate tube 117 is formed in a lattice shape, the contact area between the intermediate tube 117 and the outer tube 115 is increased so that they are more densely and firmly coupled.

In addition, it is possible to reduce the stress received from the inner tube 111 by double installing the outer tube 115 made of a transparent soft polyvinyl chloride material on the outer periphery of the intermediate tube 117, thereby reducing the fluid transfer hose ( 110) can improve the durability.

On the other hand, the inner tube 111, the outer tube 115, and the intermediate tube 117 are preferably combined by fusion or compression, but is not limited thereto. When the shape is deformed by bending and external pressure, the inner tube 111, the outer tube 115, and the intermediate tube 117 are not separated from each other, and flexibility is ensured to ensure a stable fluid. transfer operation can be carried out continuously.

The adapter (Adapter, 130) is made of a stainless steel material, and is inserted and installed so that one end is accommodated at both ends of the hose 110 for fluid transfer, is made to be inserted into the inner tube 111, and is connected to a separate facility to the inner tube ( 111) to connect the space.

In this way, the adapter 130 is inserted and installed at both ends of the hose 110 for fluid transfer, so that the fluid is transferred through the inner tube 111 in a state in which separate equipment and equipment are connected through the adapter 130 .

At this time, the adapter 130 is formed in a suitable shape according to the connection structure of the equipment to be connected.

Here, the adapter 130 has a plurality of wedge-shaped support pieces 131 protruding from the outer periphery of one end of the adapter 130 to be inserted and installed in the inner tube 111 , and the support pieces 131 are inserted into the inner tube 111 . is made to be easy and difficult to release, and for this, the support piece 131 is formed in a wedge shape that is inclined to decrease in diameter in the insertion direction. The end of the support piece 131 is made to abut against the inner periphery of the .

In addition, a locking groove 133 is formed on the outer periphery of the adapter 130 , and the locking grooves 133 are spaced apart from each other at regular intervals on the other side of the support piece 131 to form a plurality of locking grooves 133 . That is, a plurality of locking grooves 133 are formed at a predetermined distance apart from one end of the adapter 130 in which a plurality of support pieces 131 are formed to protrude in the opposite direction, and the locking groove 133 has a sleeve tube ( 150) is combined.

In one embodiment of the present invention, the locking groove 133 is formed in three pieces spaced apart from the other side of the support piece 131 at regular intervals, but the number of the locking grooves 133 is not limited thereto and is variously changed. it is feasible

On the other hand, on the outer periphery of the other side of the last locking groove 133 formed in the opposite direction to the support piece 131 among the locking grooves 133, a support jaw 135 is extended and protruded.

The sleeve pipe 150 is made of a stainless steel material to fix the adapter 130 interpolated to the inner pipe 111 of the hose 110 for fluid transfer, and is formed in the form of a tube. The locking protrusion 151 is formed to protrude toward it and has a cross-section of approximately "-┐" shape.

According to the structure as described above, the locking jaw 151 of the sleeve tube 150 is inserted and coupled to any one of the locking grooves 133 among the locking grooves 133 formed on the outer periphery of the adapter 130 , or , The inner periphery of the support jaw 135 formed on the outer periphery of the genital adapter 130 is engaged to abut.

On the other hand, an insertion groove 153 is formed to be stepped on the inner periphery of the other end of the sleeve tube 150 , and the exterior 115 of the hose 110 for fluid transfer is inserted and coupled to the insertion groove 153 .

At this time, the locking jaw 151 of the sleeve tube 150 is formed to have a width corresponding to the locking groove 133 of the adapter 130, and the insertion groove 153 has an exterior 115 in its thickness. formed to a corresponding depth.

On the other hand, in order to fix the exterior 115 inserted and coupled to the insertion groove 153 of the sleeve tube 150, at least one is formed on the inner periphery of the insertion groove 153 of the sleeve tube 150, annular pressurization The piece 155 is formed to protrude inward, and the pressing piece 155 presses the outer tube 115 to press and fix the outer tube 115 inserted into the insertion groove 153 of the sleeve tube 150 . It is also possible, but not limited thereto.

In one embodiment of the present invention, an annular pressing piece 155 is formed on the inner periphery of the insertion groove 153 of the sleeve tube 150 to protrude inward, but the insertion groove of the sleeve tube 150 ( 153), an annular pressing piece 155 is formed protruding toward the inner end of the inner end, it is also possible to be formed in an approximately "┌" shape.

In addition, it is possible to form a plurality of embossed or wedge-shaped pressing pieces on the inner periphery of the insertion groove 153 of the sleeve tube 150 spaced apart from each other at regular intervals along the circumferential direction to protrude, and other various modifications are possible.

In this way, the inner tube 111 and the adapter 130 are fixed through the sleeve tube 150, and at the same time, the outer tube ( By pressing and fixing the outer periphery of the adapter 130 by pressing and fixing it, the adapter 130 is firmly fixed, and at the same time, the outer periphery of the adapter 130, the inner tube 111 and the outer tube 115 are densely coupled to the outside of the adapter 130. Prevent leakage of fluid through the perimeter.

Here, the pressing piece 155 is formed in the form of an embossing or a wedge shape with a sharp end, and by pressing the outer periphery of the exterior 115, the exterior inserted into the insertion groove 153 of the sleeve tube 150. It is preferably made to fix the 115, but other various modifications are possible.

With the structure as described above, as the adapter 130 inserted and installed inside both ends of the inner tube 111 of the fluid transfer hose 110 is firmly fixed through the sleeve tube 150, the adapter 130 is prevented from being separated from the inner tube 111 without permission.

On the other hand, between the aramid fibers of the intermediate tube 117 which is installed so as to be in contact with the inner periphery of the sleeve tube 150 by a "V" or "ㅗ"-shaped coupling piece is formed protruding from the inner periphery of the sleeve tube 150. It is also possible to be made to improve the coupling force of the sleeve tube 150 and the intermediate tube 117 by being coupled to, but is not limited thereto.

In this way, since the inner tube 111 and the adapter 130 are fixed through the sleeve tube 150, a separate fixing ring for fixing the inner tube 111 and the adapter 130 can be eliminated, and thereby the overall structure can be easily configured, and production cost and product unit cost can be reduced.

As described above, the hose assembly 100 for fluid transport in which the adapter 130 and the sleeve pipe 150 are installed in the hose 110 for fluid transport of the triple structure is a variety of devices and It is applied and used to transfer fluids for handling fluids in facilities. It has durability and elasticity, so it performs the transfer of deciduous teeth without interruption through appropriate responses such as elastic deformation of shape to external environments such as bending and pressure. Prevents damage and prevents fluid leakage.

And, even when damage such as breakage occurs in the exterior 115 due to an external environment, the damaged portion is prevented from expanding, thereby minimizing leakage of fluid.

In addition, the hose assembly 100 for fluid transport according to the present invention is made so that the connection portion between the fluid transport hose 110 and the adapter 130 is covered by the sleeve pipe 150, so that the fluid transport hose 110 and Compared to the conventional hose assembly for fluid transfer in which the connection part of the adapter 130 is covered by the exterior 115, it is strong against damage due to scratches and dents.

Hereinafter, a method of manufacturing a hose assembly for transferring fluid having a triple structure according to the present invention will be schematically described.

First, the inner tube forming step of forming a spiral corrugation 112 in the longitudinal direction of the outer periphery of the remaining parts except for both end sides of the inner tube 111 made of Teflon material or PFA material and the intermediate tube on the outer periphery of the inner tube 111 The intermediate tube installation step of installing the 117, the exterior installation step of installing the outer tube 115 on the outer periphery of the intermediate tube 117, and the adapter insertion for extrapolating the adapter 130 into both ends of the inner tube 111 and a sleeve tube fixing step of extrapolating the sleeve tube 150 to the outer periphery of both ends of the exterior 115 to fix the adapter 130 .

On the other hand, it is preferable to manufacture in a triple structure by fusion or compression bonding during the installation of the intermediate tube 117 on the inner tube 111 and the molding of the outer tube 115 on the intermediate tube 117, but is not limited thereto. .

Here, the flexibility (Flexibility) of the fluid transfer hose 110 is improved by each spiral corrugation 112 protruding from the outer periphery of the inner tube 111 .

And, in the adapter insertion step of extrapolating the adapter 130 into both ends of the inner tube 111 , a wedge-shaped support piece formed on the outer periphery of one end of the adapter 130 in the portion to be inserted into the inner tube 111 . One end of the adapter 130 inserted into the inner tube 111 by the 131 is prevented from being released and separated from the inner tube 111 .

In addition, in the sleeve tube fixing step of fixing the adapter 130 by extrapolating the sleeve tube 150 to the outer periphery of both ends of the exterior 115 , a locking jaw protruding from the inner periphery of the end of the sleeve tube 150 . (151) is inserted and fastened into any one of the locking grooves 133 of the plurality of locking grooves 133 formed in the adapter 130, or a locking jaw 151 protruding from the inner periphery of the end of the sleeve tube 150 ) may be engaged with the support jaw 135 protruding from the outer periphery of the other side of the engaging groove 133 .

At this time, according to the length of the intermediate tube 117, the position of the locking jaw 151 of the sleeve tube 150 is adjusted to correspond to the length of the intermediate tube 117, and the inner tube 111 is coupled to the locking groove 133 or the support jaw 135. The adapter 130 installed in the can be firmly fixed.

On the other hand, the insertion groove 153 by the annular pressing piece 155 protruding from the inner periphery of the insertion groove 153 when the end of the exterior 115 is inserted into the insertion groove 153 of the sleeve tube 150 . The exterior 115 inserted in the can be fixed more firmly.

For this reason, the adapter 130 is firmly fixed inside and outside both ends of the inner tube 111 and is coupled while ensuring tight airtightness, so that fluid leakage does not occur at the fixed portion of the adapter 130 .

In addition, the sleeve pipe 150 is installed at both ends of the fluid transport hose 110 to partially cover the connection part of the adapter 130, so that when damage such as scratches and dents occurs in the connection part, the fluid transport hose ( 110) is easy to protect.

As described above, the hose assembly 100 is formed in a triple stacked structure of the inner tube 111 , the outer tube 115 , and the intermediate tube 117 through the hose assembly 100 for transferring fluid having a triple structure according to the present invention. Of course, since each tube is joined by fusion or compression molding, it is possible to increase the production efficiency and at the same time secure the durability and elasticity because the coupling of each tube is dense.

Above, although the present invention has been illustrated and described in relation to specific embodiments, it is common knowledge in the art that various modifications and changes are possible within the limits without departing from the spirit and scope of the invention shown in the appended utility model registration claims. Anyone who has , can easily find out.

100: hose assembly for fluid transfer,
110: hose for fluid transfer, 111: inner tube,
112: spiral pleats, 115: appearance,
117: middle tube, 130: adapter,
131: support piece, 133: locking groove,
135: support jaw, 150: sleeve tube,
151: locking jaw, 153: insertion groove,
155: a press piece.

Claims (7)

A hose assembly for conveying fluid, the hose assembly comprising:
It is formed in a triple structure including a tube-shaped inner tube, an outer tube-shaped outer tube extrapolated to a structure surrounding the inner tube on the outer periphery of the inner tube, and an intermediate tube interposed between the inner tube and the outer tube, compression or fusion bonding a hose for conveying fluid coupled to each other by a;
Doedoe interpolated into the inner tube of the fluid transfer hose, an adapter for connecting to a separate facility to connect the space of the inner tube; and
a sleeve tube for fixing the adapter inserted into the inner tube;
Including, but made so that the connection portion of the fluid transfer hose and the adapter is covered by a sleeve tube,
The inner tube is made of any one of a Teflon (Teflon) material or a perfluoroalkoxy (PFA: Perfluoroalkoxy) material,
The exterior is made of a transparent soft polyvinyl chloride (PVC: Polyvinyl chloride) material,
On the outer periphery of the inner tube, a plurality of annular wrinkles are formed protruding from the outer periphery of the remaining parts except on both end sides of the inner tube, or lattice-shaped wrinkles are formed protruding from the outer periphery of the inner tube, or the outer periphery of the inner tube A plurality of annular wrinkles are formed on the periphery to protrude in the longitudinal direction, and protrusions are formed long in the longitudinal direction on the outer periphery of the inner tube,
The sleeve tube is formed with a locking jaw protruding toward the inside on the inner periphery of one end thereof, and is bent into a cross-section in the form of “─┐”, and an insertion groove is formed in a stepped manner on the inner periphery of the other end thereof,
A coupling piece in the form of "V" or "ㅗ" is formed to protrude on the inner periphery of the sleeve tube and is coupled between the intermediate tubes installed so as to abut against the inner periphery of the sleeve tube,
At least one doedoe formed on the inner periphery of the insertion groove of the sleeve tube, an annular pressing piece is formed to protrude toward the inside, or an annular pressing piece is formed to protrude toward the inside at the inner end of the insertion groove of the sleeve tube to form a “┌” shape or a plurality of embossed or wedge-shaped pressing pieces on the inner periphery of the insertion groove of the sleeve tube are formed to protrude at regular intervals along the circumferential direction, so that the pressing pieces press the exterior and are inserted and coupled to the insertion groove of the sleeve tube A hose assembly for transferring fluid of a triple structure, characterized in that it is made to press and fix the exterior.
delete delete The method according to claim 1,
The intermediate pipe is made of aramid (Aramid) material, a triple structure fluid transport hose assembly, characterized in that it is installed on the outer periphery of the inner tube by weaving the fibers of the aramid material in a grid shape.
delete The method according to claim 1,
In the adapter, a plurality of wedge-shaped support pieces are protruded from one end of the outer periphery, and the support pieces are formed in a wedge shape inclined to decrease in diameter in the insertion direction of the adapter,
A locking groove is formed on the outer periphery of the adapter, and the locking grooves are formed in plurality at a predetermined interval on the other side of the support piece, and the other side outer periphery of the last locking groove formed in the opposite direction of the support piece among the locking grooves is supported. A hose assembly for transferring fluid of a triple structure, characterized in that the jaws are extended and protruded. delete

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