KR200211198Y1 - The pipe coupling structure - Google Patents

Abstract

The present invention relates to a pipe connection structure that can easily separate the two pipes fixed and connected by pressing a pushbutton.

The conventional pipe connection structure equipped with a connection cap, sealing, fixing ring, washer, etc. has the advantage of easy coupling and fixing and connecting, but it is difficult to calibrate when tightening and cannot be separated for repair, and plastic pipe In addition, there was a disadvantage that could not be applied to the copper pipe and stainless steel pipe for indoor piping difficult to weld, the present design is the one end of the female pipe with the sealing cap inserted in the connection cap assembly in which the pushbutton, the retaining ring, and the tension washer are inserted in the connection cap The problem was completely solved by fixing to. In other words, when the push button is pressed, the fixing piece of the retaining ring is slightly separated from the outer circumferential surface of the male pipe, so that the coupling state of the male pipe can be easily corrected or separated.

The present invention having the configuration described above is easy to calibrate when connecting the pipes, and can be easily separated after the completion of the connection is excellent in economics during repair and repair, there is an effect of presenting a breakthrough connection structure of copper pipes and stainless steel pipe.

Description

The pipe coupling structure

The present invention relates to a pipe connection structure, and more particularly to a pipe connection structure that can easily separate the two pipes fixed and connected using a push button, and can easily connect copper and stainless steel pipes.

Since the connection of two or more pipes is essential when piping a fluid transporting pipe, it must be easy, fast and securely connected and secured. Various piping connection methods and structures have been devised and used, and one of the most widely used plastic pipes is a seal-ring and washer 6 as shown in FIG. (washer), the ring-shaped connection cap (3) provided with a fixing ring (8) is fixed to one side of the pipe (1) (hereinafter female pipe), and one end of the other pipe (2) (hereinafter water pipe) the connection cap Insert (3) to fix and connect the two pipes so as not to release them. This will be described in detail as follows.

First, the connection cap 3 is a hollow cylinder (cylinder), one end is screwed to the female pipe (1), the other end is formed with an insertion hole (4) so that one side of the male pipe (2) can be inserted snugly have. And the insertion hole 4 is slightly protruded to the inside of the connection cap (3).

The sealing 5 is used to maintain airtightness when connecting and fixing two pipes, and uses a known O-ring usually made of rubber.

In addition, the washer 6 is formed on one side of the flat as a known washer, and the other side is tapered portion 7 is formed in the center portion so that the fixing ring 8 formed with the elastic piece 9 is settled. do. And the material usually uses hard synthetic resin without elasticity.

Meanwhile, the fixing ring 6 is called a grab-ring, and a plurality of elastic pieces 7 are radially formed by bending more than a vertical angle inward from one side of the ring. 7) is formed to be tapered because the predetermined angle is bent.

The pipe connecting structure composed of the above components inserts the retaining ring 8 so that the elastic piece 9 bent to the stepped portion 1 ′ formed inside the female pipe 1 faces the inside of the female pipe 1. Then, insert the washer (6) so that the taper (7) faces the same direction as the elastic piece (9) of the fixing ring (8), and then insert the sealing (5) after the connection cap (3) When screwing in, the above elements are fixed. When the two pipes are connected, one side of the male pipe (2) is opposed to the inserting portion (4) of the connecting cap (3), and then inserted. The tip of the male pipe (2) to be inserted is a fixed ring (8). The elastic piece 9 is inserted while pushing slightly, and the elastic piece 9 is elastically deformed while pressing the outer surface of the male pipe 2 with elastic restoring force. When the insertion of the male pipe 2 is completed, since the elastic piece 9 of the fixing ring 8 presses the outer surface of the male pipe 2 with a strong elastic restoring force, the elastic piece 9 is closed by the force. The outer surface of the pipe 2 is slightly penetrated and positioned so that the two pipes are firmly connected and fixed in a state that cannot be easily separated by external force in the reverse direction.

The pipe connection structure is a connection structure that is very widely used because of its advantages in that its structure and components are simple, easy to manufacture, and excellent in airtightness, and above all, easy to connect pipes and are not easily separated from external forces.

However, this connection structure is difficult to correct because of the fixing action of the retaining ring (8) when trying to correct the pipe is not exactly inserted horizontally when tightening. And once the pipe is inserted, it cannot be pulled out again in the reverse direction of the elastic piece 9, so if the separation of the pipe is necessary for work such as repair or repair, there is no other device for separation, which destroys the connection cap 3 or the pipe. Had to cut.

This pipe connection structure has the above advantages, but is widely used, but it is difficult to calibrate when connecting pipes, and for the replacement of some pipes, it is necessary to destroy and replace other pipes that can still be used for a long time. There was a problem that a large economic loss due to unnecessary piping material replacement work such as destroying the connection cap and re-combining a new connection cap.

Meanwhile, copper pipes and stainless pipes are frequently used for indoor piping at construction sites. These copper and stainless pipes are usually welded to connect, but a large diameter pipe can be easily welded, but a narrow diameter pipe can easily be ruptured by the heat of welding. However, the above connection structure has many advantages, but it has been used only for the connection of plastic pipes in the meantime, and thus, difficulties in connecting copper pipes and stainless pipes for indoor pipes such as construction sites cannot be solved.

The present invention was devised to solve the above problems, by introducing a washer and pushbutton with a tension function, it is easy to calibrate when connecting the pipe, it is possible to easily separate the connected pipe even after the completion of tightening, The object is to provide a pipe connection structure that can also facilitate the connection.

The present invention for achieving the above object, the ring-shaped connection cap provided with a sealing, washer, a fixed ring therein is fixed to one side of the pipe, the other pipe end is inserted into the connection cap does not release the two pipes In the pipe connection structure to be fixed and connected so that the hollow cylinder end is formed into the insertion hole, the first end jaw and the second end jaw having different diameters are formed stepwise on the inner surface of the connection cap is fixed and coupled to one end of the arm pipe and; A ring-shaped push button formed in a tapered portion from a hook portion vertically protruding from one side thereof to a shortest portion thereof and inserted into an insertion hole so that the hook portion is settled on the first step; A ring-shaped tension washer having another tapered portion of the same inclination corresponding to the tapered portion formed on the push button formed inside and fixed to the connection cap; A fixing ring in which a plurality of elastic pieces are radially bent so as to be in close contact between the tapered portion of the pushbutton and the tapered portion of the tension washer inside the flat washer-shaped ring and placed on the second step of the connection cap; It is characterized by consisting of a sealing that is inserted into the sealing step formed in the inner side of the female pipe by a known O-ring made of rubber and is completely tightly fixed by the tension washer when fixing the connection cap.

The present invention having the configuration described above is easy to calibrate when connecting the pipe, and even after the completion of the fastening can be easily connected pipe is excellent in economics during repair and repair, there is an effect of presenting a breakthrough connection structure of copper pipe and stainless steel pipe.

1 is an exploded perspective view of a conventional pipe connection structure.

Figure 2 is an exploded perspective view of one embodiment of a pipe connection structure according to the present invention.

Figure 3 is a cross-sectional view of one embodiment of the pipe connection structure according to the present invention.

Figure 4 is a cross-sectional view of another embodiment of a pipe connection structure according to the present invention.

Figure 5 is a perspective view of the pipe connection structure according to the present invention.

* Explanation of symbols for the main parts of the drawings

10: connection cap 11: insertion hole

12: first step 13: second step

20: push button 21: push surface

22: hook portion 23, 41: tapered portion

30: retaining ring 31: elastic piece

40: tension washer 50: sealing

60: connecting cap assembly 61: sealing step

71: connecting cap step

Detailed features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings.

2 is a perspective view of an embodiment of a pipe connection structure according to the present invention, FIG. 3 is a cross-sectional view of one embodiment of the pipe connection structure according to the present invention, and FIG. 4 is a view of a pipe connection structure according to the present invention. Another embodiment is a perspective view, Figure 5 is a cross-sectional view of the pipe connection structure according to the present invention.

The present invention introduces a new push button 20 and a tension washer 40 with elasticity as a key feature of the conventional pipe connection structure, as shown in FIGS. It is done by

First, the connecting cap 10 fixed and coupled to one end of the female pipe 1 in the form of a hollow short cylinder forms one end of the insertion hole 11, and the inner surface of the insertion hole 11 has a diameter in a stepwise manner. The first stepped portion 12 and the second stepped portion 13, which are extended, are continuously formed stepwise.

In addition, the push button 20 is a short cylinder whose outer diameter is the same as the diameter of the insertion hole 11, and the side portion of one end (that is, the cylinder thickness surface of one end) can be pressed using a tool such as a hand or a stick. The push surface 21 is comprised. And the other side hook portion 22 and the tapered portion 23 is formed, the hook portion 22 is formed from one side of the push button 20, the outer circumferential surface is projected vertically to a predetermined height, the protruding hook portion 22 ) Is inclined from the innermost side to the innermost side thereof to form a tapered portion 23.

In addition, unlike the conventional washer 6, the tension washer 40 is made of a synthetic resin having a material elasticity, the overall appearance is a thick ring-shaped tapered portion 23 formed on the push button 20 on the inner surface Another tapered portion 41 of the same inclination is formed, and the outer circumferential surface is inserted and fixed to fit the inner circumferential surface of the connection cap 10.

On the other hand, the fixing ring 30 has a plurality of elastic pieces 31 are radially formed toward the center of the inner ring-like flat washer, the tapered portion 23 and the tension washer of the push button 20 All of them are bent at a predetermined angle toward one side so as to be in close contact between the tapered portions 41 of the 40 and appear to be tapered.

Finally, the sealing 50 uses a well-known O-ring made of rubber and is inserted into a sealing step 61 formed inside the female pipe 1 to hold the tension washer 40 when fixing the connection cap 10. It is completely tightly fixed by) to maintain the airtightness of the fluid flowing in the two pipes are joined.

The present invention having the above configuration has the following coupling configuration, first, the push surface 21 of the push button 20 is exposed out of the insertion hole 11 of the connection cap 10, the hook portion 22 is connected The pushbutton 20 is inserted through the inside of the connection cap 10 so as to be placed in the first step 12 of the cap 10. When the fixing ring 30 is placed on the second step 13 of the connection cap 10, the fixing ring 30 is bent and inclined to the tapered portion 23 of the push button 20. It will be placed in the same shape as the 31. After the fixing ring 30 is placed, the tension washer 40 is connected to the inner taper portion 41 so as to correspond to the taper portion 23 of the push button 20 with the fixing ring 30 therebetween. Insert it into the inside of 10). On the other hand, the sealing 50 is inserted into the sealing step 61 formed in the female pipe (2), after the insertion of the push button 20, the fixing ring 30, the tension washer 40 is inserted into the connection cap 10 (hereinafter, the connecting cap assembly 60) secures the female pipe 1 with the sealing 50 inserted therein, one embodiment of which is shown in FIGS. 2 and 4.

2 and 4 illustrate an embodiment in which a connection cap assembly (.60) is inserted and fixed to a connection cap step 71 formed in a cascading successive manner with the sealing step 61 on one side of the female pipe 1. Doing. That is, as shown in FIG. 2, after inserting the connection cap assembly 60 into one side of the female pipe 1 which is completely open so that the connection cap assembly 60 can be inserted, When the end is bent inward, the connection cap assembly 60 is completely fixed as shown in the cross-sectional view of FIG. 3. This embodiment is very useful when applied to the case of copper and stainless steel tubing difficult to weld connections.

And as shown in Figure 4, the connection cap assembly 60 may be fixed by screwing on the inner side of the connection cap 10 and one side of the female pipe (1). At this time, it is preferable to process the diameter of one side of the outer circumferential surface of the arm pipe 1 side of the tension washer 40 in the same manner as the inner diameter of the arm pipe 1. The connection cap 10 is made of the same material as the pipe.

When the connection cap assembly 60 is fixed to the female pipe 1 as described above, one end of the male pipe 2 is opposed to the insertion hole 11 and then inserted, and then, as shown in FIG. As shown in the drawing, it is firmly fixed. However, if the male pipe 2 needs to be calibrated, for example, to be inserted at an angle, or if the two pipes need to be separated after being inserted and fixed, the pushbutton 20 may be used using a hand or a stick. When the push surface 21 of the pressing, the elastic pieces 31 of the fixing ring 30 is forced by the taper portion 23 of the push button 20, the elastic pieces 31 are elastic The force applied to the outer circumferential surface of the male pipe 2 is released while slightly pushing toward the tapered portion 41 of the tension washer 40 so that the fixing is released, so that the coupling state can be easily corrected or the male pipe 2 can be separated.

On the other hand, the invention is not shown, but also as a method of fixing the connection cap assembly 60 to one side of the female pipe (1), it can also be used as a pipe connector produced by fixing a pair of separate short pipes on both sides, This will also be included in the ideological scope of the present invention.

Therefore, the present invention is easy to calibrate when connecting the pipe, can be easily separated after the completion of the connection pipe, copper pipe and stainless steel pipe can be easily connected.

As apparent from the above description, the present invention has all the advantages of the conventional pipe connection structure and completely solves the shortcomings. By pressing a pushbutton, the pipe can be easily calibrated when the pipe is connected, and the pipe connected after the completion of the connection is completed. It has an effect that can be easily separated.

Therefore, this design eliminates the need for replacement due to the unnecessary cutting of pipes and the destruction of the connection cap during repair and repair. It is very economically effective.

In addition, the present invention can be easily connected to copper and stainless pipes, in particular, in the embodiment of Figures 2 and 3, because the connection cap assembly is inserted into the end of the female pipe is made integrally with the pipe to connect the pipe without additional work in the field It can be used to provide breakthrough connections between copper pipes and stainless steel pipes, which are particularly difficult to weld.

Claims (1)

A ring-shaped connection cap provided with a sealing, washer, and fixing ring therein is fixed to one side of a pipe (hereinafter referred to as an arm pipe), and one end of another pipe (hereinafter referred to as a water pipe) is inserted into the connection cap so as not to release two pipes. In the pipe connection structure for fixing and connecting, One end of the hollow cylinder forms an insertion hole 11, the first step 12 and the second step 13 of different diameters formed on the inner surface of the casing is connected to be fixed and coupled to one end of the arm pipe (1) A cap 10; A ring-shaped push button is inserted into the insertion hole 10 so that the taper portion 23 is formed from the hook portion 22 formed vertically protruding from one side thereof to the shortest end thereof so that the hook portion 22 is placed on the first step 12. 20); The other taper portion 41 of the same inclination corresponding to the taper portion 23 formed on the push button 20 is formed on the inner side, and a ring-shaped tension washer 40 inserted and fixed inside the connection cap 10. ; A plurality of elastic pieces 31 are radially bent and formed to be in close contact with the tapered portion 23 of the pushbutton 20 and the tapered portion 41 of the tension washer 40 inside the flat washer-shaped ring. A fixing ring 30 settled on the second step 13 of 10; Sealing which is inserted into the sealing step 61 formed inside the female pipe 1 with a known O-ring made of rubber and is completely tightly fixed by the tension washer 40 when the connecting cap 10 is fixed. A pipe connection structure, characterized in that consisting of 50).