WO2014046376A1

WO2014046376A1 - Fitting apparatus for connecting hose

Info

Publication number: WO2014046376A1
Application number: PCT/KR2013/006268
Authority: WO
Inventors: 노응석; 최병철; 김종길
Original assignee: (주)워피온
Priority date: 2012-09-24
Filing date: 2013-07-12
Publication date: 2014-03-27
Also published as: KR20140040315A

Abstract

The present invention relates to a fitting apparatus for connecting hoses, the fitting apparatus comprising: a body provided with an inlet and an outlet, and having coupling recesses on the outer circumference of the inlet; a connecting member provided with coupling protrusions for coupling with the coupling recesses so as to be coupled to the inlet of the body, a hole into which a hose is inserted, and a catching flange on the upper end thereof extending towards the center; and a fixing member, provided with a hole into which the hose is inserted, inserted into the connecting member, and provided with a plurality of fixing arms for coupling with the catching flange so as to fix the hose, and thus, as the coupling protrusions on the coupling member are coupled to or separated from the coupling recesses of the body while the connecting member and the fixing member are coupled, the hoses can be easily connected or separated without any changes to the coupling region.

Description

Fitting device for hose connection

The present invention relates to a fitting device for connecting and fixing a separated hose, and more particularly, when connecting or disconnecting a hose, a hose connection fitting device that can simplify the connection or disconnection of the hose without deformation of the fastening portion. It is about.

In general, the fitting device is to connect the hoses separated from each other integrally to communicate the fluid, such as a fitting device for communicating a liquid such as water or oil, and a fitting device for communicating a gas such as air or gas It is largely divided. Among them, fittings applied to liquids include fittings for connecting plastic hoses in domestic water treatment devices such as water purifiers, water softeners and ionizers, and urethane hoses in machinery used throughout the industry. Divided into devices.

1 and 2 illustrate a one-touch fitting device for a water purifier among fitting devices applied to household water treatment devices. As shown, the one-touch fitting device for the water purifier 20 includes a support 3 into which the hose 1 is inserted, and a main body 4 into which the support 3 is inserted and fixed.

When the hose 1 is inserted into a hole located in the center, the supporter 3 includes a plurality of holding parts 5 provided at regular intervals such that the hose 1 is elastically supported, and the holding part 5 of the holding part 5. It consists of a locking projection 6 formed in the tip portion.

The main body 4 has a jaw on the inner circumferential surface of the trunk portion 7 so that the trunk portion 7 having a hollow formed therein so that the support 3 can be inserted therein, and the engaging projection 6 of the support 3 can be caught. It consists of a locking portion 8 and the O-ring member 10 provided on one side of the locking portion (8).

When the hose 1 is fitted in the fitting device 20, the operation is that when the hose 1 is first inserted into the hole of the support 3, the holding part 5 of the support 3 opens outward. . Thereafter, while the locking projection 6 of the holding portion 5 is caught by the locking portion 8 of the main body 4, the holding portion 5 catches and fixes the outer circumferential surface of the hose 1.

If the hose 1 is damaged or old and needs to be replaced, in order to separate the hose 1 from the fitting device 20, the end of the support 3 exposed on one side of the main body 4 is removed from the main body. When pressed to the (4) side, the locking projection 6 of the holding portion 5 in the support 3 is spaced apart from the locking portion 8 of the main body 4, in this state to hold the hose 1 to one side Pulling separates the hose 1 from the fitting device 20.

Here, the conventional fitting device 20 is a large force is applied to the locking projections 6 of the support when the connection or disconnection of the hose, the problem that the locking projections 6 are easily broken. there was. In order to reinforce this, in recent years, the engaging projection 6 is made of a metal material such as stainless steel.

However, in order for the locking projection to be made of a metal material, there was a problem inevitably undergoing a separate press and insert production process. In addition, in the process of producing the conventional fitting device 20, the combination of the body portion and the engaging portion is necessarily performed by the ultrasonic device, which has a problem in that the production cost, production time and production process according to the ultrasonic welding increases.

In this way, by ultrasonic fusion of the body portion and the locking portion, a large amount of impurities such as tips during the fusion operation is generated, there is a cumbersome problem of having to wash the finished product again due to these impurities. In addition, if the product is used in a state in which the impurities are buried in the o-ring member without being completely cleaned in the process of washing impurities, fine voids are generated between the hose and the o-ring member due to impurities, thereby causing leakage. there was.

The present invention has been invented to solve the above problems, an object of the present invention is to provide a hose connecting fitting device that can simplify the connection or disconnection of the hose without deformation of the connection portion when connecting or disconnecting the hose. .

According to an aspect of the present invention for achieving the above object, a body having an inlet and an outlet, the coupling groove is formed on the outer periphery of the inlet; A connection member having a coupling protrusion coupled to the coupling groove, the coupling member being fastened to the inlet of the body, having a hole into which the hose is inserted, and having a locking flange extending in the center direction at the top; And a fixing member having a plurality of fixing legs inserted into the connecting member and fastened to the locking flange to secure the hose.

Preferably, the coupling groove has a vertical portion extending a predetermined length in the direction of the outlet from the end of the inlet and a horizontal portion extending a predetermined length in the circumferential direction of the inlet from the vertical portion, the coupling projection is the vertical portion After being inserted into and rotated in the horizontal direction to combine with the coupling groove.

More preferably, a stepped portion is provided between the vertical portion and the horizontal portion of the coupling groove.

Here, the coupling groove is made of at least two, the coupling grooves are arranged spaced apart from each other in the circumferential direction of the inlet, the coupling protrusion is provided to correspond to the coupling groove on the inner circumference of the connecting member It is characterized by.

In addition, the fixing leg of the fixing member is provided with a locking jaw protruding outwardly at the end, it is characterized in that coupled to the locking flange on the inside of the connecting member.

Preferably, the engaging flange is characterized in that it is made of a shape bent to surround the end of the inlet.

More preferably, the engaging flange is characterized in that the portion surrounding the inner circumference of the inlet has a tapered shape so that the width is reduced downward.

Preferably, the body is characterized in that it is fastened with the other fitting device having a screw fastening portion on the outer or inner circumference of the outlet.

In addition, the outer circumference of the outlet is characterized in that the same coupling groove is formed with the coupling groove of the inlet.

In addition, an airtight O-ring is provided between the inner circumference of the connecting member and the outer circumference of the fixing member.

In addition, the connecting member has a tension portion cut in a 'c' shape on the outer peripheral surface, characterized in that the end of the tension portion is provided with a protrusion protruding into the connection member.

According to the present invention, since the engaging projection of the connecting member is fastened or separated from the coupling groove of the body in a state where the connecting member and the fixing member are fastened, the connection or disconnection of the hose can be easily performed without deformation of the fastening portion. .

In addition, there is no need to make a connection between the fastening member and the body from a durable metal material, thus eliminating the need for a separate press and insert production process.

1 is an exploded perspective view showing a one-touch fitting connecting the water purifier hose according to the prior art,

Figure 2 is a cross-sectional view showing a one-touch fitting connecting the hose for water purifier according to the prior art,

Figure 3 is a perspective view of the fitting device for hose connection according to the invention,

Figure 4 is an exploded perspective view showing a hose connecting fitting device according to the present invention,

5 is a sectional view showing a hose connecting fitting device according to the present invention;

Figure 6 is a perspective view showing a connection cap of the hose connecting fitting device according to the invention,

7a and 7b show another form of the connecting member of the hose connecting fitting device according to the invention,

8a and 8b is a view showing another form of the connection member of the hose connecting fitting device according to the invention,

9A and 9B show yet another form of the connecting member of the hose connecting fitting device according to the present invention.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the connection fitting device according to the present invention. For reference, in the following description of the present invention, terms referring to the components of the present invention are named in consideration of the function of each component, and should not be understood as a meaning of limiting the technical components of the present invention. Will be.

Figure 3 is a perspective view showing a hose connecting fitting device according to the present invention, Figure 4 is an exploded perspective view showing a hose connecting fitting device according to the invention, Figure 5 is a hose connecting fitting device according to the invention 6 is a cross-sectional view illustrating a connection cap of a hose connecting fitting device according to the present invention.

As shown in Figures 3 to 6, the hose connecting fitting device according to the present invention comprises a body 100, the connecting member 200 and the fixing member 300.

The body 100 has an inlet 101 on one side and an outlet 102 on the other side. Then, the coupling groove 110 is formed on the outer circumference of the inlet 101. The coupling groove 110 is an element that is coupled to the coupling protrusion 210 of the connection member 200 to be described later.

The connection member 200 is an element that is fastened to the outer circumference of the inlet 101 of the body 100, the coupling protrusion 210 coupled to the coupling groove 110 is provided on the inner circumference of the connection member 200. In addition, the connection member 200 includes a through hole 201 into which a hose (not shown) to be connected is inserted. The upper end of the connecting member 200 is provided with a latching flange 220 extending in the center direction of the through hole 201. The locking flange 220 is an element that is engaged with the fixing leg 310 of the fixing member 300 to be described later.

The fixing member 300 includes a through hole 301 into which the hose is inserted, and includes a plurality of fixing legs 310 inserted into the connecting member 200 and fastened to the locking flange 220. The upper end of the fixing member 300 has a support 320 having a size larger than the diameter of the through hole 301 of the connection member 200, the plurality of fixing legs 310 are connected from the support 320 It extends in the direction of the member 200. In addition, the fixing legs 310 are configured to be retractable when radially spaced apart from each other and inserted into the through hole 201 of the connecting member 200.

With this configuration, the fixing member 300 is inserted into the through hole 201 of the connecting member 200 in a state where the hose is inserted into the through hole 301 of the fixing member 300 so that the fixing member 300 and The connection member 300 is coupled. Then, the connection member 200 coupled with the fixing member 300 is coupled to the outer circumference of the body 100.

Therefore, when connecting or disconnecting the hose, only the connecting member 200 and the body 100 is coupled or released, so that no external force acts on the fixing leg 10 of the fixing member 300 except when first fitted. Therefore, the fixing leg 310 is not deformed. Therefore, it is not necessary to make the joining portion of the connecting member 200 or the fixing member 300 from a separate metallic material.

Preferably, the coupling groove 110 formed at the outer circumference of the inlet 101 of the body 100 extends a predetermined length from the end of the inlet 101 toward the outlet 102 and then bends back to the outer circumferential direction of the inlet 101. And a certain length is extended. That is, when the coupling groove 110 is viewed from the side. It has an "L" shape. In other words, the coupling groove 110 includes a vertical portion 111 extending in the vertical direction and a horizontal portion 112 extending in the horizontal direction.

Then, the coupling protrusion 210 formed on the inner circumference of the connecting member 200 is inserted into the coupling groove 110 in the direction of the body 100 from the outside of the inlet 101, and then in the outer circumferential direction of the inlet 101 By rotating a predetermined distance, the coupling groove 110 and the coupling protrusion 210 is fastened to couple the connection member 200 and the body 100.

Therefore, when the body 100 and the connection member 200 are coupled, the body 100 and the connection member 200 are simply not required to apply external force to the inlet 101 and the connection member 200 of the body 100. Can be fastened and detached.

Here, the stepped portion 120 is provided between the vertical portion 111 and the horizontal portion 112 of the coupling groove 110. The stepped portion 120 serves to prevent the connecting member 200 from being separated from the body 100 by being separated from the coupling protrusion 210 inserted into and coupled to the coupling groove 110.

Preferably, the coupling groove 110 provided in the inlet 101 of the body 100 is made of at least two, the coupling grooves 110 are spaced apart from each other by a predetermined distance in the circumferential direction of the inlet 101 Are arranged. In the present specification, the three coupling grooves 110 are arranged radially spaced apart from each other at the outer circumference of the inlet 101. In addition, the coupling protrusion 210 provided on the inner circumference of the connection member 200 is also provided in a number corresponding to the coupling groove 110 and at a position corresponding to the coupling groove 110.

As such, since the coupling groove 110 and the coupling protrusion 210 are configured in plural numbers spaced apart in the radial direction, the coupling of the body 100 and the connection member 200 is possible.

Preferably, the plurality of fixing legs 310 provided in the fixing member 300 has a locking jaw 311 protruding outward at its end. The locking jaw 311 is coupled to the end of the locking flange 220 inside the connecting member 200 when the fixing member 300 is inserted into the through hole 201 of the connecting member 200. The 300 is prevented from being separated from the connecting member 200.

On the other hand, referring to Figure 5, the engaging flange 220 of the connecting member 200 is formed in a shape bent to surround the end of the inlet 101 of the body 100. Therefore, the connection member 200 may be more stably coupled with the body 100.

Preferably, the locking flange 220 is provided with a tapered portion 221 in close contact with the inner circumference of the inlet 101 to surround the inner circumference of the inlet 101. The tapered portion 221 is formed such that its width is reduced downward.

The tapered portion 221 allows the locking jaw 311 provided in the fixing leg 310 of the fixing member 300 to be inserted into the through hole 201 of the connecting member 200 to be smoothly inserted. Therefore, when the fixing member 300 is inserted into the through hole 201 of the connecting member 200, excessive external force does not act on the contact portion, thereby preventing the fixing leg 310 of the fixing member 300 from being damaged. can do.

Meanwhile, as illustrated in FIG. 4, an O-ring 400 for airtightness may be provided between the inner circumference of the connection member 200 and the outer circumference of the fixing member 300.

Preferably, the body 100 may include a screw fastening portion 103 on the outer circumference or the inner circumference of the outlet 102. The screw fastening portion 103 allows the fitting device according to the present invention to be fastened with another fitting device having the same configuration as the present invention.

However, although not shown in the drawings, the outlet can be provided with a coupling groove similarly to the inlet, the coupling member and the fixing member can be coupled to both the inlet and the outlet.

7A and 7B illustrate another form of the connection member of the hose connecting fitting device according to the present invention. As shown in FIGS. 7A and 7B, the connection member 200 ′ is a connection member (described above). It is substantially the same as 200, and differs from the connecting member 200 in that the tension unit 230 is further provided.

The tension part 230 is a portion of the outer circumference of the connection member 200 'cut into a' c 'shape, and a protrusion 231 protruding toward the inside of the connection member 200' at the end of the tension part 230. ) Is provided.

According to this configuration, when the connecting member 200 ′ is coupled to the body 100, the protrusion 231 and the body 100 are connected to the body 100 by the cut portion of the tension unit 230 even when the protrusion 231 and the body 100 are pressed. Joining of the member 200 'is possible. Further, after the body 100 and the connection member 200 'are coupled, a more firm coupling may be achieved by the pressing force of the tension unit 230.

In this case, the coupling protrusion 210 'of the connection member 200' is preferably arranged to face each other along the radial direction of the connection member 200 'in order to avoid interference with the tension portion 230. That is, the connection member 200 'includes a pair of coupling protrusions 210'.

On the other hand, although not shown in the drawings, the coupling of the body 100 and the connecting members (200, 200 ') can be coupled in a screw fastening method.

8A and 8B show another form of the connecting member of the hose connecting fitting device according to the present invention, wherein the connecting member 200 ″ is substantially the same as the connecting member 200 described above, and has a coupling protrusion ( 210 '') is different.

Specifically, in FIGS. 7A and 7B, the inner side of the connecting member 200 'is provided with two engaging protrusions 210' arranged to face each other along the radial direction of the connecting member 200 ', while FIG. 8a and 8b are provided with three engaging protrusions 210 ″ spaced at regular intervals from each other along the radial direction of the connecting member 200 ″ on the inner side of the connecting member 200 ″.

Meanwhile, FIGS. 9A and 9B are views illustrating still another form of the connecting member of the hose connecting fitting device according to the present invention, wherein the inner side of the connecting member 200 '' 'is connected to the inner side of the connecting member 200' ''. Four coupling protrusions 210 ′ ″ spaced apart from each other along a radial direction may be provided.

The embodiments of the present invention described above are merely illustrative of the technical idea of the present invention, and the protection scope of the present invention should be interpreted by the following claims. In addition, one of ordinary skill in the art to which the present invention pertains will be capable of various modifications and variations without departing from the essential characteristics of the present invention, all technical ideas within the scope equivalent to the present invention of the present invention It should be interpreted as being included in the scope of rights.

Claims

A body having an inlet and an outlet and having a coupling groove formed on an outer circumference of the inlet;

A connection member having a coupling protrusion coupled to the coupling groove, the coupling member being fastened to the inlet of the body, having a hole into which the hose is inserted, and having a locking flange extending in a central direction at an upper end thereof; And

And a fixing member having a hole into which a hose is inserted and having a plurality of fixing legs inserted into said connecting member and fastened to said locking flange to secure said hose.
The method of claim 1,

The coupling groove has a vertical portion extending a predetermined length in the direction of the outlet from the end of the inlet and a horizontal portion extending a predetermined length in the circumferential direction of the inlet from the vertical portion, the coupling protrusion is inserted into the vertical portion Hose fitting device for connecting to the coupling groove is rotated in the horizontal direction.
The method of claim 2,

Hose fitting device for connecting characterized in that the step is provided between the vertical portion and the horizontal portion of the coupling groove.
The method according to claim 2 or 3,

The coupling groove is formed of at least two, the coupling grooves are arranged spaced apart from each other in the circumferential direction of the inlet, the coupling protrusion is provided to correspond to the coupling groove on the inner circumference of the connecting member. Fitting device for hose connection.
The method of claim 1,

The fixing leg of the fixing member is provided with a locking jaw protruding outward at the end, and the fitting device for hose connection, characterized in that coupled to the locking flange in the inner side of the connecting member.
The method of claim 5,

The engaging flange is a hose connecting fitting device, characterized in that formed in a shape bent to surround the end of the inlet.
The method of claim 6,

The engaging flange is a hose connecting fitting device, characterized in that the portion surrounding the inner circumference of the inlet has a tapered shape so that the width is reduced downward.
The method of claim 1,

The body is provided with a screw fastening portion on the outer circumference or the inner circumference of the outlet fitting device for hose connection, characterized in that the fastening.
The method of claim 1,

Fitting device for a hose connection, characterized in that the same coupling groove with the coupling groove of the inlet is formed on the outer circumference of the outlet.
The method of claim 1,

An airtight O-ring is provided between the inner circumference of the connecting member and the outer circumference of the fixing member.
The method of claim 1,

The connecting member has a tension portion cut in a 'c' shape on the outer circumferential surface, the fitting portion for connecting hoses, characterized in that the end of the tension portion is provided with a protrusion protruding into the connection member.