KR20210112129A - Connecting device for pipe and connecting apparatus for pipe having the same - Google Patents

Abstract

In accordance with the present invention, a piping connector includes: a hollow connector body having a cap coupling screw part provided at one end and having a passage provided therein for fluids to pass therethrough; a cap having a cap through hole formed therein for a pipe to pass therethrough and having a cap screw part matched with the cap coupling screw part to be screwed with the connector body; a sealing material placed in the connector body to be adjacent to the outer circumference surface of a pipe inserted into the connector body; a grip ring placed in the connector body so as to fix the pipe to the connector body by including a plurality of elastically transformable engaged pieces adjacent to the outer circumference surface of the pipe inserted into the connector body; and a release tube. The release tube has a tube through hole formed therein for the pipe to pass therethrough, has an outer diameter which is larger than that of the pipe inserted into the connector body, and has one end inserted into the cap through hole to be brought into contact with the plurality of engaged pieces. The release tube can be moved in a direction to be inserted into the connector body to press the plurality of engaged pieces in a direction to be spaced apart from the outer surface of the pipe inserted into the connector body. Therefore, the present invention is capable of facilitating the replacement of components through easy separation.

Description

Connection device for piping and connection device for piping including the same

The present invention relates to a pipe connector, and more particularly, to a pipe connector capable of easily connecting pipes constituting a pipe for transferring various fluids, and a pipe connector including the same.

In general, a pipe is used for transferring the fluid of various devices or facilities, from various machines to which the fluid must be supplied, to general households or large industrial facilities. Such a pipe is usually composed of a plurality of pipes connecting the fluid supply part to the use part.

Since the pipe is manufactured to a certain standard due to transport or handling restrictions, various pipe connection devices are used to connect the pipe when it is necessary to construct a pipe with a length longer than the standard length of the pipe or to install a bent pipe. . The pipe connection device includes a coupling, an elbow, a T-joint, or various sockets.

As a pipe constituting the pipe, there are various materials such as copper pipe, stainless steel pipe, synthetic resin pipe, etc. depending on the type of fluid flowing along the pipe, and various connection methods are used depending on the type of pipe.

As for the connection method of the pipe, a flange coupling method in which a flange is formed and connected to the tip of each pipe corresponding to each other, a coupling connection method in which the tip of each pipe is inserted into the coupling to connect, and each tip of the corresponding pipe is connected to each other. There are a screw coupling method in which a screw is formed and screwed together, a band connection method in which ends of pipes are connected using a stainless steel band, and an electric fusion method in which the ends of pipes to be connected with a mesh-shaped hot wire are melt-bonded. In addition, in the case of a pipe for transferring a high-pressure fluid such as a refrigerant, a flare connection method or the like is used.

In the flare connection method, the end of the pipe is plastically machined with a jig to form an expanded pipe section, and the expanded pipe section is applied to the tapered section of the joint body and fastened with a cap nut, and the expanded pipe section is between the tapered surface of the cap nut and the tapered section of the joint body. It is a method of securing airtightness by press-fitting into the

However, since this method requires plastic processing of the end of the pipe, the operation is cumbersome, the operation time is long, and it is difficult for a non-technical person to perform the operation.

Public Utility Model Publication No. 2000-0010261 (2000. 06. 15.)

The present invention has been devised in view of the above-described points, and aims to provide a piping connector capable of quickly and easily connecting a pipe and a pipe, or a pipe and other piping accessories, and a piping connection device including the same do

Objects of the present invention are not limited to those described above, and other objects not mentioned will be clearly understood by those skilled in the art from the following description.

The connector for piping according to the present invention for achieving the object as described above, in the connector for piping for connecting a pipe with another pipe or piping accessory, is provided with a cap fastening thread at one end, and a fluid passes therein A hollow connector body in which a passage is provided; a cap having a cap through hole through which a pipe can pass therein and having a cap screw portion corresponding to the cap fastening screw portion to be screwed to the connector body; a sealing material disposed inside the connector body to be in contact with the outer circumferential surface of the pipe entering the inside of the connector body; a grip ring disposed inside the connector body so as to have a plurality of engaging pieces elastically deformed in contact with the outer circumferential surface of the pipe entering the inside of the connector body to fix the pipe to the connector body; and a tube through hole through which a pipe can pass is formed therein, has an outer diameter greater than an outer diameter of a pipe that enters the inside of the connector body, and is inserted into the cap through hole so that one end can contact the plurality of engaging pieces and a release tube, wherein the release tube is movable so as to press the plurality of locking pieces in a direction spaced apart from the outer surface of the pipe that has entered the inside of the connector body.

The release tube may include a tube body and a pressing part provided at one end of the tube body so that the diameter gradually decreases as the distance from the tube body increases.

The release tube may include a locking part protruding from the outer surface of the tube body, and a locking jaw on which the locking part can be caught may be provided inside the cap to prevent the release tube from being separated from the cap.

The pipe connector according to the present invention includes a hollow sleeve body having an outer surface in contact with the inner surface of the connector body, and is interposed between the sealing material and the grip ring to support the sealing material and the grip ring. It may include; a sleeve disposed on the inside of the connector for.

A window penetrating the connector body may be formed on one side of the connector body to expose the inside of the connector body to the outside, and the sleeve may have light transmittance and be disposed at a position where the window is formed.

The connector body may be formed in a straight shape, an elbow shape, or a T shape.

On the other hand, the connection device for piping according to the present invention for achieving the object as described above, the pipe connector for connecting the pipe with another pipe or piping accessory; and an opening into which a pipe connected to the pipe connector can be inserted, and is detachably coupled to a pipe connected to the pipe connector so as to be approached to the pipe connector side or away from the pipe connector. includes; a release handle movable in a direction parallel to the direction in which the pipe is inserted into the pipe connector, wherein the pipe connector has a cap fastening thread at one end, and a passage through which a fluid can pass therein is provided. a hollow connector body, a cap through hole through which a pipe can pass therein, and a cap screw portion corresponding to the cap fastening screw portion to be screwed to the connector body; A sealing material disposed inside the connector body so as to be in contact with the outer circumferential surface of the pipe entering into A grip ring disposed on the inside of the connector body so as to be fixed, a tube through hole through which a pipe can pass is formed therein, and has an outer diameter larger than the outer diameter of the pipe entering the inside of the connector body, and one end is and a release tube inserted into the cap through hole so as to reach the plurality of locking pieces, wherein the release tube moves in a direction to be inserted into the connector body by the release handle to move the plurality of locking pieces into the connector body It is characterized in that it can be pressed in a direction spaced from the outer surface of the pipe that has entered the inside of the.

The connection device for piping according to the present invention includes a marking auxiliary tool having a pipe insertion hole into which a connection target pipe connected to the piping connection port can be detachably inserted, and the depth of the pipe insertion hole is the pipe connection port It may be equal to the insertion depth of the pipe being inserted into it.

The connector for piping according to the present invention as described above can simply couple the pipe to be connected in a one-touch insertion method.

In addition, the pipe connector according to the present invention is easy to separate the pipe connected thereto. Accordingly, the replacement of the pipe can be easily and conveniently performed without cumbersome work such as separating some parts of the pipe connector.

In addition, since the connector for piping according to the present invention can separate the cap from the connector body and easily separate the parts disposed in the connector body, replacement of the parts is easy.

Effects of the present invention are not limited to those described above, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.

1 shows a pipe connector, a release handle, and a marking auxiliary tool constituting a pipe connection device according to an embodiment of the present invention.
2 is a cross-sectional view showing a connector for piping according to an embodiment of the present invention.
3 and 4 are disassembled views of a pipe connector according to an embodiment of the present invention.
5 shows a method of marking a mark on a pipe using a marking auxiliary tool according to an embodiment of the present invention.
6 illustrates a process of connecting a pipe to a pipe connector according to an embodiment of the present invention.
7 and 8 show a process of separating a pipe from a pipe connector according to an embodiment of the present invention.
9 to 12 show various modifications of the pipe connector according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art to which the present invention pertains can easily implement them. The present invention may be embodied in many different forms and is not limited to the embodiments described herein.

In describing the present invention, the size or shape of the components shown in the drawings may be exaggerated or simplified for clarity and convenience of explanation.

In addition, terms specifically defined in consideration of the configuration and operation of the present invention may vary depending on the intention or custom of the user or operator. These terms should be interpreted as meanings and concepts consistent with the technical spirit of the present invention based on the contents throughout this specification.

In order to clearly explain the present invention, the description of parts not related to the technical idea of the present invention is omitted, and the same reference numerals are given to the same or similar elements throughout the specification.

In addition, in various embodiments, components having the same configuration will be described using the same reference numerals only in the representative embodiment, and only configurations different from the representative embodiment will be described in other embodiments.

Throughout the specification, when a part is "connected" to another part, it includes not only the case where it is "directly connected" but also the case where it is "indirectly connected" with another member interposed therebetween. In addition, when it is said that a part "includes" a certain component, this may mean further including other components rather than excluding other components unless otherwise stated.

1 is a list of components of a connection device for piping according to an embodiment of the present invention.

As shown in the drawings, the connecting device 100 for piping according to an embodiment of the present invention includes a pipe connector 110 for connecting a pipe 10 (see FIG. 6 ) to another pipe or piping accessory, and a pipe A release handle 150 used to separate the pipe 10 from the connector 110, and a marking auxiliary tool 160 that can be used as an auxiliary in the process of connecting the pipe 10 to the pipe connector 110 include

1 to 4, the pipe connector 100 includes a hollow connector body 111, a cap 120 coupled to the connector body 111, and the connector body 111. The grip ring 127 for fixing the pipe 10, the sealing material 130 for sealing between the connector body 111 and the pipe 10, and the grip ring 127 and the sealing material 130 are disposed between the It includes a sleeve 132 and a release tube 137 movably coupled to the cap 120 to press the grip ring 127 .

The connector body 111 has a hollow structure in which a passage 112 through which a fluid can flow is formed. A cap fastening screw part 113 is provided at one end of the connector body 111 so that the cap 120 can be screwed.

A sealing material seating part 115 and a sleeve seating part 116 are provided inside the cap fastening screw part 113 of the connector body 111 . The sealing material seating part 115 is a portion on which the sealing material 130 is mounted, has a width corresponding to the width of the sealing material 130 , and is disposed adjacent to the sleeve seating part 116 . The sleeve seating portion 116 is a portion on which the sleeve 132 is seated, has a width corresponding to the width of the sleeve 132 and is disposed adjacent to the cap fastening screw portion 113 .

In addition, a window 118 penetrating through the connector body 111 is formed on one side of the connector body 111 to expose the inside of the connector body 111 to the outside. The window 118 is formed to be connected to the sleeve receiving part 116 so that the sleeve 132 seated on the sleeve receiving part 116 may be exposed through the window 118 .

In addition to the illustrated structure, the connector body 111 may have various external shapes and internal structures.

The cap 120 has a hollow structure in which a cap through hole 121 through which the pipe 10 can pass is formed. A cap screw portion 122 corresponding to the cap fastening screw portion 113 of the connector body 111 is provided on the outer surface of the cap 120 . The cap 120 may be screwed to the connector body 111 . A locking protrusion 123 on which the release tube 137 can be caught is provided inside the cap 120 . A seating groove 124 into which the grip ring 127 can be partially inserted is provided at the end of the cap 120 . When the cap 120 is screwed to one end of the connector body 111 and the end enters the inside of the connector body 111 , the grip ring 127 is partially inserted into the seating groove 124 , and the connector body 111 . ) can be stably coaxially arranged with the passage 112 .

In addition, a plurality of cap grooves 125 are formed on the outer surface of the cap 120 . The plurality of cap grooves 125 are spaced apart from each other at regular intervals around the cap 120 . A tool for rotating the cap 120 may be stably coupled to the cap 120 by partially inserting the tool into the cap groove 125 , and the cap 120 may be smoothly rotated using the tool.

The grip ring 127 is installed inside the connector body 111 to fix the pipe 10 entering the inside of the connector body 111 so as not to be separated from the connector body 111 . The grip ring 127 includes a plurality of locking pieces 128 elastically deformed in contact with the outer circumferential surface of the pipe 10 , and a plurality of connecting parts 129 connecting the plurality of locking pieces 128 . The plurality of locking pieces 128 are connected in the circumferential direction to surround the outer circumferential surface of the pipe 10 entering the inside of the connector body 111 and are inclined toward the pipe 10 . That is, the plurality of locking pieces 128 are arranged in a form in which the pipe 10 is gradually closed in the direction in which it is inserted into the connector body 111 .

The edge of the grip ring 127 is interposed between the sleeve 132 and the cap 120 , and a plurality of connecting portions 129 are inserted into the seating grooves 124 of the cap 120 to pass through the connector body 111 . It is possible to maintain a stable arrangement with (112). In addition, as the cap 120 is screwed to the connector body 111 , the grip ring 127 has its edge sandwiched between the sleeve 132 and the cap 120 and does not move inside the connector body 111 . It can maintain a stable position fixed state.

As shown in FIG. 5 , the grip ring 127 includes a plurality of engaging pieces 128 when the end of the pipe 10 enters the inside of the connector body 111 through the cap through hole 121 of the cap 120 . ) is in close contact with the outer circumferential surface of the pipe 10 and elastically deformed, so that the pipe 10 can be firmly fixed.

In addition to the structure shown, the grip ring 127 may be changed to various other structures including a plurality of engaging pieces that can be elastically deformed by being in close contact with the outer surface of the pipe 10 .

The sealing material 130 is made of an O-ring shape, and is made of an elastically deformable material such as rubber or silicone. The sealing material 130 may be disposed on the sealing material seating portion 115 of the connector body 111 to maintain a stably fixed position without moving inside the connector body 111 . The sealing material 130 seals between the connector body 111 and the pipe 10 by being in close contact with the outer circumferential surface of the pipe 10 entering the inside of the connector body 111 .

The sleeve 132 has a hollow sleeve body 134 whose outer surface can be in contact with the inner surface of the connector body 111 , and a ring-shaped sleeve protruding to the inside of the sleeve body 134 at one end of the sleeve body 134 . and an inner rim 135 . The sleeve 132 may be disposed on the sleeve seating portion 116 of the connector body 111 to maintain a stably fixed position without moving inside the connector body 111 . In the sleeve 132, the inner rim of the sleeve 135 is in close contact with the sealing material 130, thereby fixing the sealing material 130 so as not to move, and the other end of the sleeve body 134 is in close contact with the edge of the grip ring 127, so that the cap ( 120) together with the grip ring 127 may be fixed immovably. The sleeve 132 may be formed to have light transmittance. That is, the sleeve 132 may be made of a transparent or translucent material.

The sleeve 132 may be exposed to the outside of the connector body 111 through the window 118 . That is, since the sleeve seat 116 in which the sleeve 132 is positioned is connected to the window 118 , the sleeve 132 can be seen from the outside of the connector body 111 . In addition, since the sleeve 132 has light transmittance, the inside of the sleeve 132 may be exposed through the window 118 . Therefore, in the process of coupling the pipe 10 to the pipe connector 110 , the user checks the inside of the sleeve 132 through the window 118 , and the pipe 10 normally moves into the inside of the pipe connector 110 . It can be checked whether it is inserted or whether the pipe 10 is stably fixed by the grip ring 127 . In addition, the user can stably couple the pipe 10 to the pipe connector 110 by adjusting the insertion depth of the pipe 10 while checking the position of the pipe 10 inside the sleeve 132 .

In addition to the structure shown, the sleeve 132 may be installed inside the connector body 111 to have various other structures capable of supporting the sealing material 130 and the grip ring 127 .

The release tube 137 includes a hollow tube body 138 having a tube through-hole 139 through which the pipe 10 can pass therein, and a pressing unit 140 provided at one end of the tube body 138 . includes The outer diameter of the tube body 138 is larger than the outer diameter of the pipe 10 inserted into the connector body 111 . The inner diameter of the tube body 138 may be the same as or similar to the outer diameter of the pipe 10 to allow the pipe 10 to pass therethrough. The pressing part 140 has a tapered ring shape whose diameter is gradually reduced as it goes away from the tube body 138 . An inclined surface 141 to which the engaging piece 128 of the grip ring 127 can come into contact is provided on the outside of the pressing part 140 . A portion where the tube body 138 and the pressing portion 140 are connected is provided with a locking portion 142 protruding from the outer surface of the tube body 138 . The release tube 137 coupled to the cap 120 cannot be separated from the cap 120 because the locking part 142 is caught on the locking protrusion 123 of the cap 120 .

The release tube 137 may move linearly in a direction parallel to the direction in which the pipe 10 is inserted into the connector body 111 . One end of the tube body 138 protrudes outwardly from the cap 120 . When the user presses the release tube 137 in a direction to be inserted into the connector body 111 , the pressing part 140 may come into contact with the locking piece 128 . At this time, the pressing unit 140 may press the engaging piece 128 in close contact with the outer surface of the pipe 10 to elastically deform it in a direction spaced apart from the outer surface of the pipe 10 . Due to the action of the release tube 137 , the fixing force of the grip ring 127 to the pipe 10 is released, so that the pipe 10 can be separated from the connector body 111 .

The structure or arrangement of the tube body 138 constituting the release tube 137 , the pressing part 140 , and the engaging part 142 may be variously changed.

The cap 120 coupled to the connector body 111, the grip ring 127, the sealing material 130, the sleeve 132, and the release tube 137 are the pipe ( 10) constitutes a pipe fixing unit 145 for fixing. In this embodiment, the pipe fixing unit 145 is disposed at both ends of the connector body 111 , and the pipe connector 110 may connect the two pipes 10 to form a straight line.

Referring to FIG. 1 , the release handle 150 may be used to move the release tube 137 to separate the pipe 10 coupled to the pipe connector 110 from the pipe connector 110 . The release handle 150 has an opening 151 into which the pipe 10 can be inserted. The opening 151 is formed to open from one edge of the release handle 150, and can be movably coupled to the pipe 10 in such a way that the pipe 10 is inserted into the opening 151 as shown in FIG. have. When the user presses the release handle 150 toward the pipe connector 110 while the release handle 150 is coupled to the pipe 10, the release handle 150 connects the release tube 137 to the connector body 111. Push in the direction of insertion. At this time, the fixing force of the grip ring 127 to the pipe 10 is released, so that the pipe 10 can be separated from the pipe connector 110 .

In addition to the structure shown, the release handle 150 may be changed to various other structures capable of pressing the release tube 137 .

Referring to FIGS. 1 and 6 , the marking auxiliary tool 160 is used as an auxiliary in the process of connecting the pipe 10 to the pipe connector 110 , and the connection target pipe connected to the pipe connector 110 . has a plurality of pipe insertion holes 161a, 161b, 161c, and 161d into which can be detachably inserted.

In the process of connecting the pipe 10 to the connector 110 for piping, it is difficult for the user to visually confirm whether the pipe 10 is inserted into the connector body 111 to a sufficient depth. According to the structure of the pipe connector 110 , the insertion depth for the pipe 10 to maintain a stable coupling state with the pipe connector 110 is determined. Therefore, if the insertion depth of the pipe 10 to be inserted into the pipe connector 110 is marked on the outer surface of the pipe 10, the operation of connecting the pipe 10 to the pipe connector 110 can be made easier. have.

That is, as shown in FIGS. 5 and 6, if the mark 11 is displayed at a position away from the end of the pipe 10 by the insertion depth of the pipe 10, the user can use the pipe ( 10) is simply pushed into the pipe connection port (110). When the pipe 10 enters the pipe connector 110 up to the marked portion of the mark 11 , a strong coupling state between the pipe connector 110 and the pipe 10 can be maintained.

The marking auxiliary tool 160 may be conveniently used to mark the mark 11 on the pipe 10 . That is, as shown in FIG. 6 , the user inserts the pipe 10 into the pipe insertion hole 161a corresponding to the corresponding pipe connector 110 among the plurality of pipe insertion holes 161a, 161b, 161c, and 161d. and using the marker 170 to mark the mark 11 on the outer surface of the pipe 10 . The depth of the pipe insertion hole (161a) is equal to the insertion depth of the pipe (10) inserted into the corresponding pipe connector (110).

The plurality of pipe insertion holes 161a, 161b, 161c, and 161d have different diameters and depths, and the larger the diameter, the deeper the depth may be formed. Each of the pipe insertion holes 161a, 161b, 161c, and 161d may be formed in various diameters and depths to match various pipe connectors used to connect pipes of various sizes.

In addition to the structure shown, the marking auxiliary tool 160 may be changed to various other structures having a pipe insertion hole into which a connection target pipe connected to the piping connector 110 can be detachably inserted. And the number of pipe insertion holes provided in the marking auxiliary tool 160 may be variously changed.

Hereinafter, a method of connecting the pipe 10 to the pipe connector 110 or separating the pipe 10 connected to the pipe connector 110 according to an embodiment of the present invention will be described.

A method of connecting the pipe 10 to the pipe connector 110 is as follows.

First, as shown in FIG. 6 , the user marks the mark 11 indicating the insertion depth of the pipe 10 on the outer surface of the pipe 10 using the marking auxiliary tool 160 .

Then, as shown in turn in Fig. 5 (a) and (b), the user inserts the mark 11 marked pipe 10 into the pipe connector (110). When the user pushes the pipe 10 through the tube through-hole 139 into the piping connector 110 so that the mark 11 is placed at the end of the release tube 137, the pipe 10 is used for piping. It may be firmly coupled to the connector 110 . At this time, since the engaging pieces 128 of the grip ring 127 are in close contact with the outer circumferential surface of the pipe 10 , the pipe 10 is fixed so as not to be easily separated from the pipe connector 110 . In addition, the sealing material 130 is in close contact with the outer surface of the pipe 10 , thereby sealing between the pipe connector 110 and the pipe 10 .

On the other hand, a method of separating the pipe 10 connected to the pipe connector 110 from the pipe connector 110 is as follows.

First, as shown in turn in (a) and (b) of Figure 7, the user couples the release handle 150 to the pipe (10).

Then, as shown in (a) of FIG. 8 , when the user presses the release handle 150 toward the pipe connector 110 , the release handle 150 pushes the release tube 137 into the connector body 111 . push in the direction you enter. At this time, the pressing part 140 of the release tube 137 presses the engaging piece 128 in close contact with the outer surface of the pipe 10 to elastically deform it in a direction away from the outer surface of the pipe 10 . Accordingly, the fixing force of the grip ring 127 to the pipe 10 is released. In this state, as shown in (b) of FIG. 8 , when the user pulls the pipe 10 , the pipe 10 can be easily separated from the pipe connector 110 . Since the pressing unit 140 has a tapered shape that gradually decreases in diameter, the pressing unit 140 stably holds the plurality of engaging pieces 128 when the release tube 137 is pressed by the release handle 150 . can be elastically deformed.

As described above, in the pipe connector 110 according to an embodiment of the present invention, the pipe 10 to be connected can be simply coupled in a one-touch insertion method.

In addition, in the pipe connector 110 according to an embodiment of the present invention, the pipe 10 connected thereto can be simply separated. Therefore, the replacement of the pipe 10 can be easily and conveniently without cumbersome work such as separating some parts of the pipe connector 110 .

In addition, the connector 100 for piping according to an embodiment of the present invention separates the cap 120 from the connector body 111 and includes a grip ring 127 , a sealing material 130 , a sleeve 132 , and a release. Since the tube 137 can be easily separated from the connector body 111, replacement of parts is easy.

On the other hand, Figures 9 to 11 show various modified examples of the pipe connector according to the present invention.

First, the connector 210 for piping shown in FIG. 9 includes an elbow-type connector body 211 bent at an approximately right angle, and a pair of pipe fixing units 145 provided at both ends of the connector body 211 . As a modification of this embodiment, a structure in which the pipe fixing unit 145 is provided at one end of the connector body 211 is also possible.

The connector 310 for piping shown in FIG. 10 includes an elbow-type connector body 311 bent to form an obtuse angle, and a pair of pipe fixing units 145 provided at both ends of the connector body 311 . As a modification of this embodiment, a structure in which the pipe fixing unit 145 is provided at one end of the connector body 311 is also possible.

The connector 410 for piping shown in FIG. 11 includes a T-shaped connector body 411 and three pipe fixing units 145 provided at an end of the connector body 411 . As a modification of this embodiment, a structure in which the pipe fixing unit 145 is provided at one or two ends of the ends of the connector body 411 is also possible.

The connector 510 for piping shown in FIG. 12 includes a straight connector body 511 and a pipe fixing unit 145 provided at one end of the connector body 511 . The other end of the connector body 511 may have a structure to which another pipe or piping accessory may be fastened.

Although preferred examples of the present invention have been described above, the scope of the present invention is not limited to the forms described and illustrated above.

For example, the connector body 111, the cap 120, the grip ring 127, the sealing material 130, the sleeve 132, and the release tube 137 constituting the connector 110 for piping have the structure shown. It can be changed to various other structures other than this.

While the present invention has been shown and described in connection with preferred embodiments for illustrating the principles of the present invention, the present invention is not limited to the construction and operation as so shown and described, and is not intended to be limited by the appended claims. It will be understood by those skilled in the art that many changes and modifications can be made to the present invention without departing from the spirit and scope of the present invention.

100: connection device for piping
110, 210, 310, 410, 510: Connection for piping
111, 211, 311, 411, 511: connector body
112: passage 113: cap fastening screw portion
115: sealing material seating part 116: sleeve seating part
118: window 120: cap
121: cap through hole 122: cap screw portion
123: hooking jaw 127: grip ring
128: catching piece 129: connection part
130: sealing material 132: sleeve
137: release tube 138: tube body
140: pressing part 141: inclined surface
150: release handle 160: marking auxiliary tool

Claims (8)

A pipe connector for connecting a pipe to another pipe or pipe fitting, comprising:
a hollow connector body provided with a cap fastening screw at one end and having a passage through which a fluid can pass therein;
a cap having a cap through hole through which a pipe can pass therein and having a cap screw portion corresponding to the cap fastening screw portion to be screwed to the connector body;
a sealing material disposed inside the connector body to be in contact with the outer circumferential surface of the pipe entering the inside of the connector body;
a grip ring disposed inside the connector body so as to have a plurality of engaging pieces elastically deformed in contact with the outer circumferential surface of the pipe entering the inside of the connector body to fix the pipe to the connector body; and
A tube through hole through which a pipe can pass is formed therein, and has an outer diameter larger than the outer diameter of the pipe that enters the inside of the connector body, and is inserted into the cap through hole so that one end can contact the plurality of engaging pieces. release tube; including,
The release tube is a connector for piping, characterized in that it is movable so as to press the plurality of locking pieces in a direction spaced apart from the outer surface of the pipe that has entered the inside of the connector body.
According to claim 1,
The release tube is a tube body, and the pipe connector, characterized in that it comprises a pressing portion provided at one end of the tube body so that the diameter gradually decreases as the distance from the tube body.
3. The method of claim 2,
The release tube includes a locking portion protruding from the outer surface of the tube body,
A connector for piping, characterized in that a locking protrusion on which the locking part can be caught is provided inside the cap to prevent the release tube from being separated from the cap.
According to claim 1,
a sleeve having a hollow sleeve body having an outer surface in contact with the inner surface of the connector body, the sleeve being interposed between the sealing material and the grip ring to support the sealing material and the grip ring; A connector for piping, characterized in that it comprises a.
5. The method of claim 4,
A window penetrating the connector body is formed on one side of the connector body to expose the inside of the connector body to the outside,
The sleeve is a pipe connector, characterized in that it has a light transmittance and is disposed at a position where the window is formed.
According to claim 1,
The connector body is a pipe connector, characterized in that made of a straight, elbow, or T-shape.
a pipe connector for connecting a pipe to another pipe or pipe fitting; and
It has an opening into which a pipe connected to the pipe connector can be inserted, and is detachably coupled to the pipe connected to the pipe connector so that it can approach to the pipe connector side or away from the pipe connector, so that the pipe is and a release handle movable in a direction parallel to the direction inserted into the pipe connector.
The pipe connector is
A hollow connector body provided with a cap fastening screw at one end and having a passage through which a fluid can pass therein;
a cap having a cap through hole through which a pipe can pass therein and having a cap screw portion corresponding to the cap fastening screw portion to be screwed to the connector body;
A sealing material disposed inside the connector body so as to be in contact with the outer circumferential surface of the pipe entering the inside of the connector body;
a grip ring disposed inside the connector body so as to have a plurality of engaging pieces elastically deformed in contact with the outer circumferential surface of the pipe entering the inside of the connector body to fix the pipe to the connector body;
A tube through hole through which a pipe can pass is formed therein, and has an outer diameter larger than the outer diameter of the pipe that enters the inside of the connector body, and is inserted into the cap through hole so that one end can contact the plurality of engaging pieces. a release tube;
The release tube is moved in a direction to be inserted into the connector body by the release handle to pressurize the plurality of locking pieces in a direction spaced apart from the outer surface of the pipe that has entered the inside of the connector body. for connector.
8. The method of claim 7,
Including; and a marking auxiliary tool having a pipe insertion hole into which the connection target pipe connected to the pipe connector can be detachably inserted.
The depth of the pipe insertion hole is the same as the insertion depth of the pipe inserted into the pipe connection device for piping.

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