KR102121862B1 - fitting apparatus for connecting hose - Google Patents

Abstract

The present invention is a connecting tube body formed on the inner circumferential surface of the seating end and the mounting end are sequentially stepped; A collet portion configured to grip the outer circumferential surface of the hose while the engaging piece protrudes to the inner circumferential surface of the rear end; A support holder that prevents the collet from coming off; A packing member seated in a seating end of the connecting tube body; Provided is a fitting device for hose connection, characterized in that it comprises a guide member that supports the packing member and guides to open the rear end portion of the collet portion where the engaging piece is located when moved by the pressing operation of the collet portion. Through this, the connection of the hose can be stably made, but the hose can be taken out smoothly without damaging the outer surface of the hose or damaging the fitting device when the hose is taken out.

Description

Fitting apparatus for connecting hoses

The present invention relates to a fitting device, and more specifically, while allowing the hose to be connected stably, while removing the hose, the outer surface of the hose is damaged, or the fitting device can be taken out smoothly without damage. It relates to a fitting device for hose connection according to the form.

Generally, a hose used to deliver water, such as a water purifier or bidet, is made to be connected to another hose or device (eg, filter, etc.) by a fitting device.

Such a fitting device should be configured to be able to prevent undesired separation in the state where the hose is connected, as well as to be configured with a structure capable of preventing water leakage, and in addition, it is most preferable that simple operability is also satisfied.

Accordingly, various types of fitting devices have been provided in the prior art, which are registered utility model 20-0159243, registered utility model 20-0194982, public utility model 20-2010-0007460, and public utility model 20 -2011-0007157, Patent No. 10-1127284, Patent Publication No. 10-2014-0040315, Patent Publication No. 10-2017-0056944 has been provided in a variety of structures.

However, the fitting device according to the prior art described above is designed to be provided with a structure that is not taken out when the hose is simply connected, and when it is designed to perform maintenance such as replacing the hose as designed, the surface of the hose is damaged This has occurred, or a problem that the fitting device is damaged and cannot be used has been caused.

That is, the fitting device of the prior art is configured to prevent the hose from being taken out while digging the outer circumferential surface of the hose when the hose is taken out by arranging a locking ring made of a metal ring in a direction in which the hose is inserted, at the portion where the hose is inserted. However, when the hose was taken out, there was a discomfort that had to be performed by forcing the hose with a greater force, or by inserting a separate tool between the hose and the fitting device and taking out the hose while tilting the locking ring.

In addition, the fitting device of the prior art is to prevent leakage through the outer circumferential surface of the hose by placing the O-ring in the main body tube, in the case of such O-ring is not fixed in the fitting device and made to flow in the connection direction of the hose According to this, when the hose was connected, a distortion occurred due to friction with the hose, and there was a problem in that leakage could be caused by a gap due to the distortion of the O-ring.

Utility Model Registration No. 20-0159243 Utility Model Registration No. 20-0194982 Public Utility Model No. 20-2010-0007460 Public utility model No. 20-2011-0007157 Registered Patent No. 10-1127284 Patent Publication No. 10-2014-0040315 Patent Publication No. 10-2017-0056944

The present invention has been devised to solve various problems according to the prior art described above, and the object of the present invention is to allow the connection of the hose to be stably made while damaging the outer surface of the hose when taking out the hose or fitting device. It is to provide a fitting device for a hose connection according to a new form that can be taken out smoothly without damaging the.

According to the fitting device for hose connection according to the present invention for achieving the above object is formed of a tube body into which the hose is inserted, and the inner end surface of the end end where the hose is inserted is a connecting pipe formed with a seating end and a mounting end sequentially stepped Body; It is formed of a tubular body through which the hose passes, and is formed to grip the outer circumferential surface of the hose while the engaging piece protrudes to the inner circumferential surface of the rear end, and a collet portion formed by expanding the flange on the outer circumferential surface of the front end; A support holder which is coupled and fixed to the end side of the connecting tube body to prevent the collet from being detached; A packing member seated in a seating end of the connecting tube body; It is characterized in that it is configured to include a guide member that guides to open the rear end portion of the collet portion where the engaging piece is located when moving by the pressing operation while supporting the packing member while being seated in the mounting end in the connecting tube body. .

Here, on the surface facing the packing member, which is the rear surface of the guide member, a support groove is formed to be concavely rounded to surround a part of the inner circumferential side of the packing member.

In addition, the collet portion is divided into a plurality of parts by a plurality of incision holes, and configured to open outwardly or inwardly, and the rear end end portion of the collet portion is on a surface facing the collet portion which is the front side of the guide member. In addition to the formation of the guide groove is accommodated, the guide groove is characterized in that it is formed to be inclined upward toward the rear so as to gradually open the rear end portion where the engaging piece is positioned when the collet is inserted.

Along with this, the inner circumferential surface of the rear end of the collet portion is formed to be inclined outwardly as the diameter increases toward the front, and the inner circumferential surface of the guide member is inclined inwardly toward the rear to be reduced in diameter.

In addition, on the rear inner circumferential surface of the support holder, a fulcrum formed to contact and support the front circumferential side portion of the guide member is formed to protrude, and the inner circumferential surface of the fulcrum is gradually inclined toward the front side.

As described above, the fitting device for hose connection of the present invention can be smoothly connected without damaging the surface of the hose by additionally providing a guide member that opens the guide end of the collet portion when the collet portion is pressed, as well as separating the hose. It also has the effect of being able to perform stably.

In addition, the fitting device for hose connection according to the present invention has an effect of preventing the collet from being damaged due to forcing out of the hose because the collet portion is configured not to grip the hose when connecting or taking out the hose.

In addition, the fitting device for connecting the hose of the present invention is configured to be operated so that the guide end of the collet is further closed when the collet pulls the hose in the take-out direction while the collet is gripping the hose. It has an effect that can be prevented.

In addition, the fitting device for connecting a hose of the present invention prevents a defect in connection such as twisting of the packing member when connecting between the hose and the packing member as a support groove having a round structure surrounding a part of the packing member is additionally formed on the guide member. It has the effect of being able to prevent leakage from occurring.

In addition, the fitting device for connecting the hose of the present invention, because the collet portion is always kept away from the support holder by the elastic restoring force, forcibly moves the collet portion backward to prevent the hose from falling, and then separates a separate locker. It has the effect that it does not need to be inserted between the collet portion and the support holder.

1 is an exploded perspective view showing for explaining a fitting device for hose connection according to an embodiment of the present invention
Figure 2 is a combined perspective view for explaining a fitting device for hose connection according to an embodiment of the present invention
Figure 3 is an exploded cross-sectional view for explaining a fitting device for connecting a hose according to an embodiment of the present invention
Figure 4 is a cross-sectional view showing for explaining a fitting device for hose connection according to an embodiment of the present invention
Figure 5 is an exploded cross-sectional view for explaining a fitting device for connecting a hose according to an embodiment of the present invention
6 to 10 is an enlarged main portion showing to explain the hose connection and disconnection process of the fitting device for hose connection according to an embodiment of the present invention

Hereinafter, a preferred embodiment of the fitting device for connecting a hose of the present invention will be described with reference to FIGS. 1 to 10.

On the other hand, in the description of the embodiment, the description of the front and rear directions will be described in the drawing as the left side is forward and the right side is rear.

Attached Figure 1 is an exploded perspective view showing to explain a fitting device for hose connection according to an embodiment of the present invention, Figure 2 is a combined perspective view showing to illustrate a fitting device for hose connection according to an embodiment of the present invention, 3 is an exploded cross-sectional view illustrating a fitting device for connecting a hose according to an embodiment of the present invention, and FIG. 4 is a combined cross-sectional view illustrating a fitting device for connecting a hose according to an embodiment of the present invention. Is an exploded cross-sectional view illustrating a fitting device for connecting a hose according to an embodiment of the present invention.

As shown in these drawings, a fitting device for hose connection according to an embodiment of the present invention guides the structure of a fitting device for general hose connection having a connecting pipe body 100 and a collet part 200 and a support holder 300 The member 400 is additionally provided so that the end of the collet part 200 is opened when the collet part 200 is pressed by the guide member 400 so as to be spaced apart from the hose 10, through this It is possible to easily remove the outer surface of the hose 10 without damaging the assembly work.

This will be described in more detail for each configuration as follows.

First, the connecting pipe body 100 is a portion forming an external body of a fitting device for connecting a hose according to an embodiment of the present invention.

The connecting tube body 100 may be provided in a variety of structures depending on the intended use, and at least one part is formed of a tube to which the hose 10 is inserted and coupled.

In an embodiment of the present invention, the connecting pipe body 100 is made of a horizontal straight tube body, and is configured to be connected by connecting different hoses to both ends, respectively.

Of course, although not shown, the connecting tube body 100 may be a bent tube or a tube that is integrally formed in a reservoir in which fluid is stored.

In addition, the inner circumferential surface of the connecting tube body 100 is formed with a protruding jaw 110 that limits the insertion distance of the hose 10, and the inner circumferential surface of the end of the connecting tube body 100 has a central inner diameter. Compared to the seating end 120 having an expanded inner diameter and the mounting end 130 having an inner diameter expanded compared to the seating end 120, the seating end 120 is formed to be stepped while being sequentially extended from the inner portion to the outer portion.

Here, as the packing member 500 is provided to the seating end 120, it is configured to block water leakage through a gap between the outer circumferential surface of the hose 10 and the inner circumferential surface of the connecting tube body 100.

The packing member 500 is formed of an O-ring seated in the seating end 120 of the connecting tube body 100, and its inner diameter is formed smaller than the inner diameter formed by the inner portion of the connecting tube body 10). It is configured as possible. At this time, the inner diameter of the seating end 120 is formed in a size in consideration of the outer diameter and inner diameter of the packing member 500, and the inner diameter of the mounting end 130 is sized in consideration of the outer diameter of the guide member 400 to be described later. Is formed.

Next, the collet part 200 is a part provided for restraining the hose 10.

The collet part 200 is formed of an empty tube body so that the hose 10 passes therein, and is generally divided into three parts: a body end 210, a guide end 220, and a flange end 230. .

Here, the body end 210 is made of a cylindrical tubular body and forms a body, and is divided into a plurality of parts by a plurality of incision holes 211 cut from the front side to the rear end. It is configured to be able to wheel.

In addition, when the guide end 220 forms the rear end portion of the body end 210 and presses and inserts the collet 200 into the connection tube body 100, the gripping of the hose 10 is released. It is a guided part, and the inner circumferential surface is formed to be inclined outward toward the rear.

Particularly, a locking piece 221 is protrudingly formed on a portion of the inner circumferential surface of the guide end 220 just before the inclination starts, and is made to grip and clamp the outer circumferential surface of the hose 10. At this time, the engaging piece 221 is formed to be gradually inwardly inclined toward the insertion direction of the hose 10, and when the collet 200 is forcibly pulled while the hose 10 is installed to penetrate the inside, the engaging piece 221 ) As it digs into the outer circumferential surface of the hose 10, the hose 10 is held firmly.

In addition, the flange end 230 is formed on the front end of the body end 210, the collet portion 200 is a portion to prevent excessive insertion into the connecting tube body 100, the body end 210 ) Is formed to be bent outward from the front end.

Next, the support holder 300 is a portion provided to prevent separation of the collet part 200.

The support holder 300 is made such that its rear inner circumferential portion is fixed while being inserted into the inner circumferential surface of the end of the connecting tube body 100.

Along with this, an outwardly projecting locking protrusion 222 is formed on the outer circumferential surface of the guide end 220 forming the collet part 200, and the colleting part is caught on the locking protrusion 222 on the inner circumferential surface of the support holder 300. The locking jaw 310 to prevent the front departure of the 200 is formed to protrude.

In addition, a support jaw 320 formed to contact and support the front circumferential side of the guide member 400 to be described later is protruded on the rear inner circumferential surface of the support holder 300.

In particular, the inner circumferential surface of the support jaw 320 is gradually inclined inward toward the front side, whereby when the collet 200 is pulled outward (the front side), the locking protrusion 222 of the collet 200 is generated. As the pressure is gradually pressed by the inclined surface, the guide end 220 is closed so that the gripping of the hose can be made more firmly.

Next, the guide member 400 is a portion provided so that the gripping of the hose 10 by the collet portion 200 is released when the collet portion 200 is pressed.

The guide member 400 is configured to support the packing member 500 while being seated in the mounting end 130 in the connecting tube body 100, and a support groove 410 for supporting the packing member 500 And a guide groove 420 for guiding the collet unit 200.

At this time, the support groove 410 is formed to be concave and rounded so as to surround a part of the inner circumferential side of the packing member 500 from a surface facing the packing member 500 which is the rear surface of the guide member 400, and the guide groove 420 is formed to be recessed so that the rear end portion of the collet portion 200 is accommodated on a surface facing the collet portion 200 which is the front side of the guide member 400.

In particular, the guide groove 420 is formed to be inclined upward toward the rear to gradually open the rear end portion where the engaging piece 221 is located during the insertion operation of the collet portion 200.

Along with this, the front inner inner circumferential surface of the guide member 400 is formed to be inclined inward toward the rear and reduced in diameter, through which the hose 10 that is accommodated into the guide member 400 passes through the collet part 200. So that the movement can be made smoothly.

In the following, the operation of the fitting device for hose connection according to the embodiment of the present invention described above will be described in more detail.

First, when the hose 10 is to be connected in the initial state as shown in FIG. 6, first, the collet part 200 is pressed and inserted into the connecting tube body 100. Of course, although not shown, the hose 10 is pushed into the connecting tube body 100 while the hose 10 is penetrated through the collet part 200 and the hose 10 is pushed at the same time. 10) can also be connected.

When the collet part 200 is pressed in this way, the guide end 220 constituting the collet part 200 is inserted into the guide groove 420 of the guide member 400 while being inclined by the inclination in the guide groove 420. It gradually happens. This is as shown in the attached Figure 7.

Then, in the above-described state, the hose 10 is inserted into the collet part 200 and penetrated to the inside of the connecting tube body 100. At this time, the hose 10 is inserted up to the portion where the limiting jaw 110 in the connecting tube body 100 is located, as shown in the attached FIG. 8. In this way, even during the insertion of the hose 10, the collet part 200 can achieve a pressurized state.

In addition, when the insertion of the hose 10 as described above is completed, the collet part 200 is pulled and moved in the take-out direction as shown in the attached FIG. 9.

In this case, as the guide end 220 of the collet part 200 is separated from the guide groove 420 of the guide member 400, it is restored and closed to the original state, thereby making the inner circumferential surface of the guide end 220 The formed hook piece 221 is retracted with the hose 10 and the guide end 220 together while digging and gripping the outer circumferential surface of the hose 10 in a wedge shape.

At this time, the receding movement of the collet portion 200 is made until the locking projections 222 formed on the outer circumferential surface of the guide end 220 collide with the locking jaws 320 formed on the inner circumferential surface of the support holder 300, like this When the engaging projection 222 hits the engaging jaw 310, the collet part 200 is maintained in the corresponding position while it is no longer retracted.

In particular, when considering that the inner circumferential surface of the support holder 300 (inner circumferential surface of the portion where the support jaw is formed) is gradually inclined inward toward the front side, the collet portion when the guide end 220 according to the pulling of the hose 10 moves forward Since the locking protrusion 222 of the 200 is gradually pressurized by the slope formed by the inner circumferential surface of the support holder 300, the engaging piece 221 of the guide end 220 is dug deeper into the outer circumferential surface of the hose 10 For example, the hose 10 is gripped more firmly, thereby preventing undesired departure of the hose 10.

If the hose 10 is to be removed in the above-described state, the hose 10 may be taken out while the collet part 200 is pressurized as illustrated in FIG. 10. That is, through the pressurization of the collet portion 200, the guide end 220 is opened so that the engaging piece 221 of the collet portion 200 is completely spaced from the surface of the hose 10, the hose 10 By separating, it is possible to prevent damage to the catching piece 221 of the collet part 200 as well as damage to the surface of the hose 10.

After all, the fitting device for hose connection of the present invention is the surface of the hose 10 by the additional provision of a guide member 400 that opens the guide end 220 of the collet part 200 when the collet part 200 is pressed. Not only can a smooth connection be performed without damage, but also the separation of the hose 10 can be performed stably.

In addition, the fitting device for hose connection of the present invention is configured to prevent the collet part 200 from gripping the hose 10 when connecting or taking out the hose 10. The occurrence of damage to the part 200 is prevented.

In addition, the fitting device for hose connection of the present invention, when the collet portion 200 pulls the hose 10 in the take-out direction while the hose 10 is gripped, the guide end 220 of the collet portion 200 is As it is configured to be more retracted, unwanted separation of the hose 10 can be prevented.

In addition, the fitting device for connecting a hose of the present invention is formed by additionally protruding the support groove 410 of a round structure surrounding a part of the packing member 500 in the guide member 400, the hose 10 and the packing member 500 ) When connecting between the packing member 500, it is possible to prevent a connection failure phenomenon such as twisting due to friction with the hose 10, so that leakage may be prevented.

In addition, the fitting device for hose connection of the present invention is to force the collet part 200 to prevent the hose 10 from falling out because the collet part 200 is always kept separated from the support holder 300 by the elastic restoring force. ) After retreating, there is no need to insert a separate locker between the collet part 200 and the support holder 300.

10. Hose 100. Connector body
110. Limit jaw 120. Seating stage
130. Mounting stage 200. Collet section
210. Body end 211. Incision
220. Guide 221. Hanging
222. Protrusion 230. Flange end
300. Support holder 310. Hanging jaw
320. Base 400. Guide member
410. Support groove 420. Guide groove

Claims (5)

It is formed of a tube body into which the hose is inserted and coupled to the inner circumferential surface of the end side, a connecting tube body formed in such a manner that the seating end and the mounting end are sequentially stepped, and the tubing body through which the hose passes and the locking piece protrudes to the inner circumferential surface of the rear end. In addition to being made to grip the outer circumferential surface, a collet portion formed by expanding and forming a flange on the outer circumferential surface of the front end, a support holder to prevent separation of the collet portion while being fixed to the end side of the connecting pipe body, and a seating end of the connecting pipe body It includes a packing member seated within, and a guide member for supporting the packing member while being seated in the mounting end in the connecting pipe body, and guiding the gap between the collet parts located at the rear end of the collet part when moving by the pressing operation of the collet part. ;
The collet part is divided into a plurality of parts by a plurality of incision holes, and is configured to open outwardly or inwardly, and the rear end end portion of the collet part is accommodated on a surface facing the collet part, which is the front side of the guide member. In addition to the guide groove is formed, the guide groove is a fitting device for hose connection, characterized in that it is formed to be inclined upward toward the rear so as to gradually open the rear end portion where the engaging piece is positioned when the collet is inserted. According to claim 1,
A fitting device for hose connection, characterized in that a support groove is formed to be rounded to surround a part of the inner circumferential side of the packing member on a surface facing the packing member, which is a rear surface of the guide member. delete According to claim 1,
The inner circumferential surface of the rear end of the collet portion is formed to expand in diameter while being inclined outward toward the front,
Fitting device for a hose connection, characterized in that the inner circumferential surface of the front side of the guide member is inclined inwardly toward the rear side to be reduced in diameter. According to claim 1,
On the inner circumferential surface of the rear side of the support holder, a support jaw made to contact and support the front circumferential side of the guide member is formed to protrude,
Fitting device for a hose connection, characterized in that the inner circumferential surface of the base is gradually inclined toward the front side.

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