KR101871168B1 - Plastic pipe connection of liquid pipings connection system being possible for visual identification using multi layer - Google Patents

Abstract

The present invention relates to an identification type industrial multi-layer fluid piping clamping connection system plastic joint structure for visual inspection by a visual identification part, which is capable of fastening a plurality of pipes, It is possible to know whether or not the pipe is securely fastened only by confirming whether or not the visual identification member is projected. When the visual confirmation is not made, the projected portion is confirmed as tactile, .
The color of the fastening member, which is one of the structures of the joint structure, can be made different for each pipe to be fastened to be applied, so that only the naked eye identification The present invention relates to an industrial type multi-layer fluid piping crimping connection system.

Description

TECHNICAL FIELD [0001] The present invention relates to a plastic multi-layer fluid piping system, a plastic multi-layer structure, and a plastic multi-

The present invention relates to an industrial multi-layer fluid piping clamping connection system having a visual identification part protruding outward from a joint structure at the time of fastening so as to easily check whether an object to be fastened is connected externally when a plurality of fasteners to be fastened are connected Plastic joint structure.

Generally, pipes are used variously as means for transferring fluids, and it is preferable to use pipes integrally so as not to form joints when pipes are installed. The pipe is cut and cut to a certain length in order to make it convenient to move and install it.

Accordingly, when the pipe is used, the pipe is connected to the pipe if necessary, so that the connecting means of the pipe is required.

Conventionally, in order to connect a plurality of pipes, a female screw is formed at the inner diameters of both ends of the connection pipe, and a male screw is formed around one side of the pipe to jointly join the pipe. However, it is difficult to maintain airtightness, There is a disadvantage that the long pipe must be rotated to join the pipe.

In recent years, as shown in Fig. 4, tightening threads are formed on the outer circumferences on both sides of the joint pipe, and a locking protrusion is formed on the inner side of the joint pipe to insert the annular packing, the tightening cap is inserted into both ends of the joint pipe, So that the pipe is fastened to both ends of the joint pipe.

However, this structure has a problem in that the structure of the periphery of the joint pipe for pressing the inner packing to adhere to the pipe is complicated, and airtightness due to the packing is often not maintained.

In addition, when using such a conventional pipe fitting, it is impossible to confirm to which portion of the pipe the inserted pipe has been inserted and whether the pipe has been securely fastened. Thus, the annular packing portion provided inside does not come in close contact with the pipe, There was a problem that it was more difficult.

In addition, when the pipe fails to securely connect to the joint pipe, there is a problem that leakage occurs to the outside and foreign substances are injected into the pipe.

In addition, since it is not possible to directly check the diameter of the pipe to be used at the opposite ends of the pipe, it is necessary for the operator or the user to insert the pipe into the pipe There has been a problem that it is necessary to check and confirm the information written on the outer shape or the pipe or the connecting pipe in a narrow space when replacing and repairing pipes and fittings.

Registered Utility Model No. 20-0220160 (Registered on January 31, 2001)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a fastening device for fastening a plurality of fastening pipes to each other, It is possible to know whether or not the visual identification member is projected by simply confirming whether the visual identification member protrudes from the outside or not, By confirming it with touch, it is possible to know whether or not it is concluded,

In addition, it is easy for the naked eye to see the diameter of the pipe to be fastened, which can be used even by color confirmation, through a fastening member having different colors in accordance with the diameter of the pipe to be fastened and the use standard. Clamping connection system plastic joint structure.

Other objects and advantages of the present invention will be described hereinafter and will be understood by the embodiments of the present invention. Further, the objects and advantages of the present invention can be realized by the means and the combination shown in the claims.

SUMMARY OF THE INVENTION The present invention, as a means for solving the above problems,

An inner tube (10) through which the interior passes in the longitudinal direction; The inner pipe 10 is coupled to both ends of the inner pipe 10 and has a double pipe shape with the inner pipe 10 so that the pipe P to be fastened is spaced apart from the outer circumference of the inner pipe 10 by a preset distance, An outer tube (20) forming an insertion hole for allowing the insertion tube And the other end is fastened to the outer periphery of the outer tube 20 so that the inner tube 10 and the outer main tube are connected and fixed to each other while the inner tube 10 is fastened to the outer periphery of the inner tube 10, A fastening member 30 for forming a hole 32 penetrating to the outside at a portion where the step 31 is formed; A ring member 41 which is fastened to the outer periphery of the inner tube 10 so as to be positioned at one end side of the outer tube 20 and a ring member 41 which is extended outwardly of the ring member 41, And a naked eye identification member (40) corresponding to the visual identification member (40) corresponding to the visual identification member (40), which is supported in the longitudinal direction to prevent foreign matter from entering outside through the confirmation hole (32) The end of the pipe to be fastened P contacts the ring member 41 and presses the ring member 41 to the step 31 when the pipe P to be fastened is inserted into the insertion hole in the longitudinal direction, The naked eye identification member 44 is pushed outwardly in the confirmation hole 32 and is extended to the outside of the confirmation hole 32 so that whether or not the pipe P to be fastened is fastened to the visual- It is possible to easily identify the object by the presence or absence of the protruding hole 32 of the confirmation hole 32, Check the protrusions to the skin is characterized in that to determine whether the fastening of the fastening target pipe (P).

As described above, according to the present invention, when a plurality of fastening pipes are connected, it is possible to easily confirm whether or not the pipe is fastened to the outside by a visual identification member protruding to the outside of the coupling structure at the time of fastening.

Further, according to the present invention, visually recognizing members protruding outwardly when the pipe connection is fastened can be confirmed through tactile sense to confirm whether or not the fastener is fastened.

In addition, according to the present invention, the color of the fastening member constituting the joint structure has various colors according to the diameter of the applied pipe, so that it is possible to know the specification of the pipe to be fastened which can be used only by checking the color of the fastening member.

Further, according to the present invention, a plurality of O-rings can be inserted without being detached from the fastened pipe, thereby achieving a reliable sealing and an effect of facilitating fastening of the pipe.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of an embodiment of a joint structure according to the present invention, showing a state prior to fastening a pipe to be fastened. FIG.
2 is a cross-sectional view of an embodiment of a joint structure according to the present invention after a pipe to be fastened is fastened.

Before describing in detail several embodiments of the invention, it will be appreciated that the application is not limited to the details of construction and arrangement of components set forth in the following detailed description or illustrated in the drawings. The invention may be embodied and carried out in other embodiments and carried out in various ways. It should also be noted that the device or element orientation (e.g., "front,""back,""up,""down,""top,""bottom, Expressions and predicates used herein for terms such as "left,"" right, "" lateral, " and the like are used merely to simplify the description of the present invention, Or that the element has to have a particular orientation. Also, terms such as " first "and" second "are used in this specification and the appended claims for the purpose of description and are not intended to indicate or imply their relative importance or purpose.

The present invention has the following features in order to achieve the above object.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

According to one embodiment of the present invention,

An inner tube (10) through which the interior passes in the longitudinal direction; The inner pipe 10 is coupled to both ends of the inner pipe 10 and has a double pipe shape with the inner pipe 10 so that the pipe P to be fastened is spaced apart from the outer circumference of the inner pipe 10 by a preset distance, An outer tube (20) forming an insertion hole for allowing the insertion tube And the other end is fastened to the outer periphery of the outer tube 20 so that the inner tube 10 and the outer main tube are connected and fixed to each other while the inner tube 10 is fastened to the outer periphery of the inner tube 10, A fastening member 30 for forming a hole 32 penetrating to the outside at a portion where the step 31 is formed; A ring member 41 which is fastened to the outer periphery of the inner tube 10 so as to be positioned at one end side of the outer tube 20 and a ring member 41 which is extended outwardly of the ring member 41, And a naked eye identification member (40) corresponding to the visual identification member (40) corresponding to the visual identification member (40), which is supported in the longitudinal direction to prevent foreign matter from entering outside through the confirmation hole (32) The end of the pipe to be fastened P contacts the ring member 41 and presses the ring member 41 to the step 31 when the pipe P to be fastened is inserted into the insertion hole in the longitudinal direction, The naked eye identification member 44 is pushed outwardly in the confirmation hole 32 and is extended to the outside of the confirmation hole 32 so that whether or not the pipe P to be fastened is fastened to the visual- It is possible to easily identify the object by the presence or absence of the protruding hole 32 of the confirmation hole 32, Check the protrusions to the skin is characterized in that to determine whether the fastening of the fastening target pipe (P).

The naked eye identification piece 44 includes a connecting portion 42 extending in the oblique direction from the ring member 41 toward the lower end at a predetermined angle alpha and extending from the ring member 41 toward the upper side And a projection 43 having a size corresponding to the size of the opening hole of the confirmation hole 32. When the ring member 41 is pressed and pressed by the step 31, The protruding portion 43 protrudes out of the check hole 32 while the connecting portion 42 of the oblique line connected to the check hole 32 is horizontally expanded.

The fastening member 30 may have a different color depending on the diameter of the pipe P to be fastened so that the diameter of the fastening pipe P that can be fastened only by color identification of the fastening member 30 So as to be able to know.

The visual identification member 40 is configured such that the shape of one projecting portion 43 protruding from the confirmation hole 32 corresponds to an elliptical confirmation hole 32 whose width is relatively wider than the vertical diameter And the like.

The visually recognizable member 40 is made of a material that is not energized so that the pipe P to be fastened can be insulated even when fastened, and the visually-invisible member 40 is made of a flexible stretchable material Or the connecting portion 42 of the naked eye identification piece 44 horizontally extending from the oblique line has a relatively soft elastic material than that of the ring member 41. [

The inner pipe 10 is provided with a detachment preventing portion 11 that protrudes and protrudes toward the direction of fastening the pipe P to be fastened to the outer circumferential edge of the one end portion so as not to be detached after the pipe P to be fastened is inserted And a large number of O-ring fastening portions 12, which can be fitted and fitted with O-rings, are continuously formed in the longitudinal direction for water tightness between the pipe P to be fastened and the inner pipe 10 do.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0028] Hereinafter, a detailed description will be made of a visual identification industrial multi-layer fluid piping crimping connection system plastic joint structure according to a preferred embodiment of the present invention with reference to FIGS. 1 and 2.

A visually recognizable type industrial multi-layer fluid piping crimping connection system by visual naked eye identification unit according to the present invention comprises an inner tube 10, an outer tube 20, a fastening member 30, a visual identification member 40, .

The inner tube 10 is a tubular body whose interior is hollow in the longitudinal direction, and has both ends opened.

Further, the inner tube 10 in the present invention has a bent shape and has an elongated shape, but it is natural that it can be made of a straight tube according to the embodiment of the user.

The detachment prevention portion 11 and the O-ring coupling portion 12 are formed for preventing detachment and sealing after fastening the pipe P to be fastened to the outer periphery of both ends of the inner tube 10 .

The detachment preventing portion 11 has a semicircular protrusion protruding from the outer periphery of both ends of the inner tube 10 so that the outer circumference of the detachment preventing portion 11 is rounded and protruded toward the fastening direction of the pipe P to be fastened. (11) are such that the projections are continuously formed on the outer circumferences on both sides of the inner tube (10) continuously in the longitudinal direction of the inner tube (10). Thus, when the pipe P to be fastened corresponds to the outer circumference of the inner tube 10 and is inserted and fitted, the detachment preventing portion 11 can be easily fastened by the detaching preventing portion 11, When the pipe P to be fastened is to be detached, the detachment preventing portion 11 is provided on the inner peripheral edge of the pipe P to be fastened Thereby preventing detachment of the pipe P to be fastened.

The oil-tightening portion is formed on the outer periphery of the inner tube 10 after the detachment preventing portion 11, and a ring-shaped protrusion is continuously formed on the outer periphery of the inner tube 10 at predetermined intervals.

That is, by inserting an O-ring between the protrusions and the protrusions, the water tightness at the contact portion between the outer periphery of the inner pipe 10 and the pipe P to be fastened is ensured.

The outer tube 20 is fastened to both ends of the inner tube 10 described above and has a straight tube shape with both ends opened and the interior thereof being hollow in the longitudinal direction. In addition, the outer tube 20 is formed of a metal material (AL).

The outer tube 20 is inserted into both outer circumferences of both sides of the inner tube 10 to have a double tube shape together with the inner tube 10, Holes H are formed so as to be spaced apart from each other by a predetermined distance.

That is, the pipe P to be fastened is inserted and fastened through the insertion hole H in the longitudinal direction. The outer tube 20 is secured to the inner tube 10 through a fastening member 30 to be described later.

The coupling member 30 is a portion where the viscous identification member 40, which will be described later, protrudes outward while connecting the inner tube 10 and the outer tube 20 described above.

These fastening members 30 are respectively fastened to both sides of the bending of the inner tube 10 having the elec- tronic storage type so that one end thereof is located at the outer periphery near the intermediate portion of the inner tube 10 And the other end is fixedly fastened to the outer periphery of the outer tube 20 which is fitted to both sides of the inner tube 10 in the longitudinal direction.

Of course, the outer peripheral edge of the inner tube 10 and the outer peripheral edge of the outer tube 20, which are fastened to both sides of the fastening member 30, have the shape of a groove and a protrusion, For fastening, and for such interconnection, various methods other than grooves and projections can be used.

In the case of the outer tube 20, the inner tube 10 is coupled in the form of a double tube so as to form an insertion hole H on the outer circumference of the inner tube 10, It is natural that the inner diameter of the other side fastened to the outer periphery of the outer tube 20 should be relatively larger.

As a result, a step 31 is formed in the inner peripheral edge portion of the fastening member 30, and a check hole communicating with the step 31 is formed to penetrate to the outer peripheral edge. Of course, the confirmation hole 32 is structured to communicate with the insertion hole H between the inner tube 10 and the outer tube 20, and the visual identification member 40, which will be described later, Which will be described later in detail with reference to the naked eye identification member 40 in the following description.

Unlike the outer tube 20 (or the inner tube 10) made of a metal material, the fastening member 30 is made of a plastic material. And the diameter of the pipe P to be fastened is increased. Accordingly, the user can confirm the specification of the pipe to be used in the joint structure by checking the color of the fastening member 30 from the outside. (Of course, The diameter information of the pipe P to be fastened can be displayed on the periphery.

The naked eye identification member 40 is configured so that it can be confirmed from the outside so as to confirm whether the pipe P to be fastened is securely fastened when the pipe P is inserted into the joint structure of the present invention.

The visual identification member 40 for this purpose is composed of a ring member 41 and a naked eye identification piece 44.

The ring member 41 is fastened to the outer peripheral edge of the inner tube 10 and the ring member 41 is provided in the vicinity of the step 31 of the fastening member 30, And is fastened at a position corresponding to one end.

The naked eye identification piece 44 protrudes from the outer periphery of the above-mentioned ring member 41 and is composed of a connecting portion 42 and a protruding portion 43.

The connecting portion 42 extends and extends at a preset angle? From the outer periphery to the lower end of the ring member 41, that is, has a shape extending in the shape of a slanted line.

The protruding portion 43 is formed at the end of the connecting portion 42 which extends in an oblique line shape. The protruding portion 43 has a shape bent and extended vertically toward the upper portion.

At this time, the shape and thickness of the projecting portion 43 have the same shape as that of the above-described through-hole forming of the confirmation hole 32, so that the projecting portion 43 is inserted into the confirmation hole 32 (The shape of the one projecting portion 43 protruding from the confirmation hole 32 is such that the diameter of the lateral side is relatively larger than the diameter of the vertical side And corresponds to the confirmation hole 32 having a wider elliptical shape.)

The naked eye identification member 40 is a member in which the part of the naked eye identification piece 44 that is bent downward is inserted into the confirmation hole 32 in the longitudinal direction in a state in which the ring member 41 is disposed apart from the step 31 And has a corresponding inserted form.

That is, in the initial state in which the pipe P to be fastened is not inserted, the naked eye identification piece 44 has a structure in which it extends in the longitudinal direction inside the confirmation hole 32, 41, the ring member 41 is naturally not in close contact with the step 31 but spaced upward.

Thereafter, when the pipe P to be fastened is inserted through the insertion hole, the end of the pipe P to be fastened contacts the ring member 41 at the end of the outer pipe 20, The ring member 41 which has been inserted into the check hole 32 has a slanting shape in the direction of the arrow X. When the ring member 41 is pushed up to the step 31, 42 are extended horizontally while being pushed in the longitudinal direction of the confirmation hole 32 so that a part of the protrusion 43 formed at the end of the connection portion 42 protrudes outside the confirmation hole 32 .

In order to warp the visual identification member 40, in the present invention, the entirety of the visual identification member 40 is formed of a flexible stretchable material, or the connection portion 42, which is a bent portion, It is possible to have a relatively flexible elastic material so as to have flexibility to be horizontally expanded in a sloped shape.

In addition, the naked eye identification member 40 is formed of a non-conductive material which is not energized with the inner tube 10 and the outer tube 20 so that the pipe P to be fastened in the insertion portion is made of a metal Even in this case, the insulation shall be made possible.

In addition, in the case of the joint structure according to the present invention, it is further provided with a cover (not shown) which is detachably fastened to the end of the outer tube 20 to which the pipe P is first inserted, The cover is fastened to both sides to prevent foreign matter from entering in advance, and to be detached when using the joint structure.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is to be understood that various changes and modifications may be made without departing from the scope of the appended claims.

10: inner tube 11: detachment prevention part
12: O-ring fastening portion 20: Outer tube
30: fastening member 31: step
32: confirmation hole 40: naked eye identification member
41: ring member 42:
43: protruding portion 44: naked eye identification piece
H: Insertion hole P: Pipe to be fastened
α: preset angle

Claims (6)

An inner tube (10) through which the interior passes in the longitudinal direction;
The inner pipe 10 is coupled to both ends of the inner pipe 10 and has a double pipe shape with the inner pipe 10 so that the pipe P to be fastened is spaced apart from the outer circumference of the inner pipe 10 by a preset distance, An outer tube (20) forming an insertion hole for allowing the insertion tube
And the other end is fastened to the outer periphery of the outer tube 20 so that the inner tube 10 and the outer main tube are connected and fixed to each other while the inner tube 10 is fastened to the outer periphery of the inner tube 10, A fastening member 30 for forming a hole 32 penetrating to the outside at a portion where the step 31 is formed;
A ring member 41 which is fastened to the outer periphery of the inner tube 10 so as to be positioned at one end side of the outer tube 20 and a ring member 41 which is extended outwardly of the ring member 41, And a naked eye identification member (40) made up of a naked eye identification piece (44) which is supported in the longitudinal direction so as to prevent foreign matter from entering through the confirmation hole (32) in advance,
When the pipe P to be fastened is inserted into the insertion hole in the longitudinal direction, the end portion of the pipe P to be fastened is brought into contact with the ring member 41, The visually identifiable piece 44 is pushed outwardly in the check hole 32 and spreads out to the outside of the confirmation hole 32 so that the fastening of the pipe P to be fastened The visual confirmation member 40 can be easily identified by projecting the visual confirmation member 40 to the outside of the confirmation hole 32. Even if the visual field is not secured, And,
The visually recognizable member 40 is made of a material which is not energized so that the pipe P to be fastened can be insulated even when fastened, and the visual identification member 40 is formed of a flexible stretchable material , Or the connecting portion (42) of the naked eye identification piece (44) horizontally extending from the oblique line has a relatively soft elastic material than the ring member (41). Multilayer fluid piping clamping connection system Plastic joint structure.
The method according to claim 1,
The naked eye identification piece (44)
A connecting portion 42 extending diagonally from the ring member 41 toward the lower end at a predetermined angle alpha and a connecting portion 42 extending upward from the ring member 41 and extending upwardly, And a protrusion 43 having a size corresponding to the size of the opening hole,
When the ring member 41 is pushed and pressed by the step 31, the slanting line connecting portion 42 connected to the ring member 41 is horizontally expanded so that the protruding portion 43 is pressed against the outside of the check hole 32 And the protruding portion is formed so as to have a shape that protrudes to the outside of the body. An identification type industrial multi-layer fluid piping crimping connection system by the naked eye identification unit.
The method according to claim 1,
The fastening member (30)
Wherein a diameter of the pipe to be fastened (P) is different from a diameter of the pipe to be fastened (P), and the diameter of the fastening pipe (30) Visual identification by identification part Identification type Industrial multi-layer fluid piping Clamping connection system Plastic joint structure.
The method according to claim 1,
The visual identification member (40)
Wherein the shape of one projecting portion (43) protruding from the confirmation hole (32) has a shape corresponding to an elliptically shaped confirmation hole (32) whose width is relatively wider than the vertical diameter. Identification type Industrial multi - layer fluid piping Clamping connection system Plastic joint structure.
The method according to claim 1,
The inner tube (10)
The detachment preventing portion 11 is formed continuously on the outer circumferential edge of one end portion so as to protrude in the direction of the fastening of the pipe P to be fastened so that the pipe P to be fastened is not detached after being inserted,
Wherein a plurality of O-ring fastening portions (12) capable of fitting and fitting with O-rings are formed continuously in the longitudinal direction for water tightness between the pipe (P) to be fastened and the inner tube (10) Identification type Industrial multi - layer fluid piping Clamping connection system Plastic joint structure.
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