WO2023113579A1 - One-touch pipe coupler including divided fastening piece - Google Patents

Abstract

The present invention relates to a one-touch pipe coupler including divided fastening pieces and, more specifically, to a one-touch pipe coupler including divided fastening pieces, wherein a pipe can be conveniently fixed in a one-touch method by using a plurality of divided fastening pieces which are mutually widened to expand the diameter or gathered to reduce the diameter. Furthermore, by the coupler, stainless steel pipes having smooth surfaces and considerable rigidity can also be securely fixed, and even in a vacuum or high pressure environment, secure watertightness or airtightness can be maintained.

Description

One-touch pipe coupler with split clamping piece

The present invention relates to a one-touch pipe coupler equipped with split fasteners, and more particularly, to conveniently fix pipes in a one-touch manner using a plurality of split fasteners that are mutually widened, diameters are expanded, mutually gathered, and diameters are reduced. Furthermore, it relates to a one-touch pipe coupler equipped with a split clamp capable of securely fixing a stainless steel pipe having a smooth surface and considerable rigidity, and maintaining a watertight or airtight seal even in a vacuum or high pressure environment.

Piping work collectively refers to the work of forming a pipeline by cutting and connecting a plurality of pipes manufactured to a certain length according to the installation environment. For this reason, pipe couplers are used.

Conventionally used as such a pipe coupler has a plurality of connecting parts having the same inner diameter as the pipe to be connected but having a larger outer diameter than the pipe to be connected so that the pipe can be screwed into it.

However, such a conventional conventional pipe coupler has a problem in that workability is not easy because the pipe must be inserted while rotating.

In order to solve the above disadvantages of conventional pipe couplers, Korean Utility Model Registration No. 0381922 (registration date: 2005.04.07) proposes a pipe connecting device having a packing member.

1 shows a pipe coupler according to the prior art published in Korean Utility Model Registration No. 0381922.

Referring to Figure 1, the pipe coupler according to the prior art is installed at the inner end of the connection portion in a hollow body 10 'formed with a plurality of connection parts having an opening into which a pipe to be connected is inserted and is connected to the body 10' A packing member 20' that secures the airtightness of the pipe, a support ring 30' having an inclined surface on the top of which is inserted into the connecting portion and closely attached to the packing member 20', the inner surface of which is reduced downward, and the support A grip ring 40', which is placed on the inclined surface of the ring 30' and has a plurality of fixing pieces that press and fix the outer diameter surface of the pipe to be inserted and connected to the inside of the connection part, and a screw groove is formed on the inside thereof It is characterized in that the locking nut (50') is screwed to the end of the connection part and tightly fixed to the grip ring (40') so that it is sequentially installed.

However, the conventional grip ring 40 'has a limitation in that it cannot be used for stainless steel pipes because a plurality of fixing pieces cannot penetrate stainless steel pipes having a smooth surface and considerable rigidity.

On the other hand, due to the limitations of the grip ring 40' as described above, stainless steel pipes, etc., are clamped to the pipe using the "pipe joint compression device" published in Korean Patent Registration No. 10-0744696 (published on August 1, 2007). The current situation adopts a method of forcibly compressing and connecting the connecting parts.

However, the method of connecting the pipes using the pipe fitting crimping device has disadvantages in that the work is cumbersome and requires a lot of labor by the operator because a separate crimping device is used.

In addition, in the case of a pipe coupler according to the prior art, in the case of a pipe in which grooves are dug at regular intervals along the circumferential direction on the outer circumferential surface, the fluid moves through the grooves so that packing is not properly performed, and the grooves formed in the connection portion are bonded, etc. There was a disadvantage that it had to be used after filling it through, and as a single packing member, there was a limit to maintaining water density or airtightness due to the limit of volume change by elasticity.

The present invention has been made to solve the problems of the prior art as described above, and an object of the present invention is to conveniently fix a pipe in a one-touch method, to reliably fix a pipe made of stainless steel, and to secure a vacuum or high pressure It is an object of the present invention to provide a one-touch pipe coupler equipped with a split clamping piece capable of maintaining reliable watertightness or airtightness even in an environment.

In order to achieve the above object, the one-touch pipe coupler having a split fastener according to the present invention is a pipe coupler that connects pipes having a condition in which a vacuum pressure is formed or a positive pressure is formed while maintaining watertightness or airtightness, a coupler body in which a hollow is formed along a direction and the pipe is inserted into the front of the hollow and communicates with the pipe; a pipe fixing means provided in the hollow of the coupler body and fixing the pipe so that the pipe can be inserted into the inside but the inserted pipe is not separated; A packing member provided in the hollow of the coupler body and made of a material having certain elasticity to seal a gap between the coupler body and the pipe when the pipe is inserted into the coupler body; Including, but, the pipe fixing means, the tightening taper surface formed by being obliquely dug in the shape of a forearm halo on the inner circumferential surface of the coupler body, and the outer circumferential surface when the pipe is inserted into the inside and formed a circle by mutual combination and moved back and forth A plurality of split fasteners that are in contact with the tightening taper surface and whose diameter can be changed, and the diameter of the plurality of split fasteners becomes smaller so that the pipe inserted into the inside can be pressed and fixed. Elastically pressing the split fastener forward Characterized in that it comprises a pipe fixing spring.

Here, the split clamping piece has a pipe insertion guiding tapered surface inclined in an all-round narrow shape on the inner circumferential surface of the front end, and has a front end of a shape capable of digging into the pipe by an external force at the lower end of the inner circumferential surface at regular intervals along the inner circumferential surface A plurality of pipe fixing protrusions protruding in a direction toward the pipe are provided, and a sliding tapered surface having a shape that can be slid back and forth along the tightening taper surface is formed on the outer circumferential surface, and the pipe enters the inside of the plurality of divided tightening pieces In the inserted state, when an external force acts in the direction in which the pipe is separated, the inclination angle of the sliding taper surface is such that the split fastener can be rotated in the direction in which the front end of the pipe fixing protrusion penetrates the pipe. It is characterized in that it is formed smaller than the inclination angle.

Here, the split clamping piece is made of a spring steel material capable of elastic deformation in shape by an external force, and the protruding heights of the two pipe fixing protrusions located on the outermost side on both sides of the plurality of pipe fixing protrusions are different from each other. It is characterized in that it is formed higher than the protrusion height.

Here, the packing member is disposed in front of the first packing member and passes through the inside of the first packing member having a pipe locking jaw protruding inward at the lower end of the inner circumference so that the front end of the pipe inserted into the inside abuts and is sealed. It is characterized by consisting of a combination of a second packing member having an O-ring shape for sealing between the outer circumferential surface of the pipe and the inner circumferential surface of the coupler body.

Here, the first packing member is formed with a fluid pressure groove concave inwardly at the rear end so that it can be moved forward by the positive pressure formed inside the coupler body, and a vacuum pressure is formed inside the coupler body so that the first packing member can be moved forward. 2 Contact with the second packing member so that the second packing member is pressed in the direction of compressing the pipe when the packing member is moved backward or the first packing member is moved forward as a positive pressure is formed inside the coupler body It is characterized in that a pressure inclined surface inclined in the shape of a front beam is formed on the inner circumferential surface of the front end.

One-touch pipe coupler equipped with a split clamping piece according to the present invention according to the configuration as described above is a tightening taper surface formed on the inner circumferential surface of the coupler body. There is an advantage in that the pipe can be conveniently fixed in a one-touch method by the organic coupling relationship between the split clamping piece and the pipe fixing spring.

In addition, the one-touch pipe coupler having a split fastener according to the present invention varies the inclination angle of the tightening tapered surface formed on the inner circumferential surface of the coupler body and the inclined angle of the sliding taper surface formed on the outer circumferential surface of the split fastener, so that the external force acts in the direction in which the pipe is separated In this case, it rotates in the direction of penetrating the pipe, so it has the advantage of securely fixing the pipe made of stainless steel.

In addition, the one-touch pipe coupler equipped with a split clamping piece according to the present invention has the advantage of maintaining certain watertightness or airtightness even in a vacuum or high pressure environment by constructing a double packing member, being compressed before and after each other, and pressurized in a direction that spreads to both sides of each other. .

1 is an exploded perspective view of a pipe coupler according to the prior art

Figure 2 is an exploded perspective view of a one-touch pipe coupler equipped with a split fastener according to an embodiment of the present invention

Figure 3 is an exploded cross-sectional view of a one-touch pipe coupler equipped with a split fastener according to an embodiment of the present invention

Figure 4 is a plan view of a split fastener according to an embodiment of the present invention

5 to 7 are cross-sectional views showing a state of use in which a pipe is inserted into a one-touch pipe coupler equipped with a split fastener according to an embodiment of the present invention

Figure 8 is a cross-sectional view showing a state of use when an external force acts in a direction in which the pipe is separated from the one-touch pipe coupler equipped with a split fastener according to an embodiment of the present invention

Figure 9 is a cross-sectional view showing a state of use when vacuum pressure is formed inside the one-touch pipe coupler equipped with a split fastener according to an embodiment of the present invention

Figure 10 is a cross-sectional view showing a state of use when positive pressure is formed inside the one-touch pipe coupler equipped with a split fastener according to an embodiment of the present invention

<Brief description of major drawing symbols>

P pipe

10 coupler body

20 Pipe fixing means

30 packing member

40 packing support

50 guide member

60 closing cap

Hereinafter, a one-touch pipe coupler equipped with a split fastener according to the present invention will be described in more detail with reference to the embodiment shown in the drawings.

Figure 2 is an exploded perspective view of a one-touch pipe coupler equipped with a split fastener according to an embodiment of the present invention, Figure 3 is an exploded cross-sectional view of a one-touch pipe coupler equipped with a split fastener according to an embodiment of the present invention, Figure 4 is a plan view of a split fastener according to an embodiment of the present invention, and FIGS. 5 to 7 are cross-sectional views showing a state of use in which a pipe is inserted into a one-touch pipe coupler equipped with a split fastener according to an embodiment of the present invention, 8 is a cross-sectional view showing a state of use when an external force acts in a direction in which a pipe is separated from a one-touch pipe coupler equipped with a split fastener according to an embodiment of the present invention, and FIG. 10 is a cross-sectional view showing a state of use when vacuum pressure is formed inside the one-touch pipe coupler equipped with a split fastener according to the present invention, and FIG. It is a cross-sectional view showing a state of use when formed.

Looking at Figures 2 to 10, the present invention relates to a pipe coupler for connecting a pipe (P) having a condition in which a vacuum pressure is formed or a positive pressure is formed while maintaining watertightness or airtightness therein, and the split fastener according to the present invention is The provided one-touch pipe coupler includes a coupler body 10, a pipe fixing means 20, a packing member 30, a packing support 40, a guide member 50, and a closing cap 60. do.

In the coupler body 10, a hollow 11 is formed along the longitudinal direction at a position where a pipe P for connection is inserted, and the pipe P is inserted into the front of the hollow 11, and the pipe It is a configuration that communicates with (P).

In one embodiment of the present invention, the coupler body 10 has a straight line shape in which the pipe P can be inserted in the direction of both ends of the hollow 11, but is manufactured in various shapes such as T-shape and cross-shape It can be.

At the upper end of the coupler body 10, the guide member 50 can be hooked and supported, and the end of the cap 60 can be hooked and supported. ) is formed.

On the other hand, in a state where all other components of the present invention are embedded in the hollow 11 of the coupler body 10, the upper end of the coupler body 10 is bent inward and the bending fixing part 14 is formed, thereby forming the closing cap. It is configured to fix the closing cap 60 between the locking jaw 13 and the bending fixing part 14.

In addition, a tightening taper surface 21 as the pipe fixing means 20 is formed on the inner circumferential surface of the coupler body 10 .

The pipe fixing means 20 is provided in the hollow 11 of the coupler body 10, and the pipe P can be inserted into the inside, but the pipe P is inserted so that the pipe P does not escape. As a fixing configuration, in one embodiment of the present invention, a tightening taper surface 21, a divided tightening piece 22, and a pipe fixing spring 23 are included.

The fastening taper surface 21 is formed by being inclined to be dug in the shape of a front narrow halo on the inner circumferential surface of the coupler body 10 .

The tightening taper surface 21 is engaged with the sliding taper surface 223 formed on the split clamping piece 22 to be described later, and when the split clamping piece 22 slides back and forth, the diameter formed by the split clamping piece 22 It is a structure that induces change.

The split clamping piece 22 is configured to form a circle by a plurality of combinations, and when the pipe P is inserted into the inside and moved back and forth, the outer circumferential surface abuts the clamping taper surface 21 and changes in diameter It is possible, and it is a configuration capable of fixing the pipe (P) inserted into the inside when the diameter is reduced.

4 shows a configuration in which the split fasteners 22 form a circle by three combinations as an embodiment of the present invention, and the split fasteners 22 are formed in a plurality of combinations, such as two or four. can be configured.

By the combination as described above, the split fasteners 22 are configured to be mutually gathered and reduced in diameter as shown in FIG. 4 (A), and widened and expanded in diameter as shown in FIG. 4 (B).

In addition, in one embodiment of the present invention, the split clamping piece 22 is formed with a pipe insertion guiding taper surface 221, a pipe fixing protrusion 222, and a sliding taper surface 223.

The pipe insertion guiding taper surface 221 is formed to be inclined in a front-to-back narrow shape on the inner circumferential surface of the front end of the split clamping piece 22, so that the pipe P is at the center of the circle formed by the plurality of split clamping pieces 22 It can be induced to be inserted accurately.

The pipe fixing protrusion 222 has a front end of a shape capable of digging into the pipe P by an external force at the lower end of the inner circumferential surface of the split clamping piece 22, and a plurality of them along the inner circumferential surface at regular intervals. ) is a configuration that protrudes in the direction toward.

In one embodiment of the present invention, the split clamping piece 22 is made of a spring steel material capable of elastic deformation in shape by an external force, and the pipe fixing protrusion 222 is as shown in FIG. It is characterized in that the protruding heights of the two pipe fixing protrusions 222a positioned at the outermost side of the plurality of pipe fixing protrusions 222 are higher than those of the other pipe fixing protrusions 222b.

As shown in (B) of FIG. 4 by the above configuration, in the state where the pipe P is inserted into the divided clamping piece 22, the two pipe fixing protrusions 222a located on the outermost side The front end first comes into contact with the pipe (P).

As shown in FIG. 4 (C) in the state of FIG. 4 (B), the split clamping piece 22 is moved forward by applying the pressing force of the pipe fixing spring 23 or an external force in the direction in which the pipe P is separated. When moved to, the plurality of split fasteners 22 have a reduced diameter and are more closely attached to the pipe P, and eventually, both ends of the split fastener 22 due to a relative action with the pipe P. It is elastically deformed into an outwardly widening shape, and other pipe fixing protrusions 222b are also configured to sequentially come into contact with the pipe P.

In the state of FIG. 4 (B), when all the pipe fixing protrusions 222 are formed to come into contact with the pipe P from the beginning, when the pipe P does not form a perfectly circular shape, the pipe does not come into contact with the pipe P. There is a possibility that the fixing protrusions 222 may not perfectly fix the pipe P and slip may occur due to irregularities.

However, in the present invention, even when the pipe P does not form a perfectly circular shape, the outermost two pipe fixing protrusions 222a arranged radially symmetrically with respect to the center of the pipe P are unconditionally It first comes into contact with the pipe (P) to maintain balance, and in that state, the split clamping piece 22 is elastically deformed by the clamping force, and the other pipe fixing protrusion 222b also comes into contact with the pipe (P), thereby making it more reliable. The pipe P can be fixed.

The sliding tapered surface 223 is formed on the outer circumferential surface of the divided tightening piece 22 in a shape capable of sliding forward and backward along the tightening taper surface 21 .

An inclination angle θ2 of the sliding tapered surface 223 according to an embodiment of the present invention is smaller than an inclination angle θ1 of the tightening tapered surface 21 .

As shown in FIG. 8 by the configuration as described above, when an external force acts in a direction in which the pipe P is separated from the state in which the pipe P is inserted into the plurality of split clamping pieces 22 The split clamping piece 22 is rotated in a direction in which the front end of the pipe fixing protrusion 222 penetrates the pipe P, so that the pipe P can be securely fixed.

The pipe fixing spring 23 elastically presses the split clamping piece 22 forward so that the diameter of the plurality of split clamping pieces 22 is reduced and the pipe P inserted into the inside can be pressurized and fixed. is a composition

The pipe fixing spring 23 may be composed of a cylindrical coil spring, but in one embodiment of the present invention, wavy wrinkles along the circumferential direction of the ring to minimize the height while having a certain elasticity in the front and rear directions It was composed of a disc spring formed thereon.

5 and 6 show a state in which the pipe P is inserted into the coupler body 10 in the initial state. As shown in FIG. 6, the split fastener 22 is the pipe P It is in contact with, moves backward by friction, and the diameter increases, so that the insertion of the pipe P becomes possible.

On the other hand, as the pipe fixing spring 23 elastically presses the split clamping piece 22 forward, the split clamping piece 22 receives a continuous elastic force in a direction in which the diameter decreases, so that the split clamping piece 22 Insertion of the pipe (P) into the inside is possible, but a state in which separation can be prevented is maintained.

That is, by the organic coupling relationship between the tightening taper surface 21, the split tightening piece 22, and the pipe fixing spring 23 with the pipe fixing means 20 as described above, the pipe P is connected to the coupler body 10 It becomes possible to fasten and fix with one touch.

The packing member 30 is provided in the hollow 11 of the coupler body 10 and is made of a material having a certain elasticity, when the pipe P is inserted into the coupler body 10, the coupler body 10 And a configuration for sealing the gap between the pipe (P).

In one embodiment of the present invention, the packing member 30 is composed of a combination of a first packing member 31, a second packing member 32, and a packing pressure spring 33.

The first packing member 31 is made of a material having a certain elasticity and is configured to maintain watertightness or airtightness between the front end of the pipe P and the front and back sides of the hollow 11 of the coupler body 10. supported movably.

The second packing member 32 is disposed in front of the first packing member 31, is formed in an O-ring shape, and the outer circumferential surface of the pipe P passing therein and the inner circumferential surface of the coupler body 10 It is a structure that seals the gap between them.

In one embodiment of the present invention, the first packing member 31 is formed with a pipe holding jaw 311, a fluid pressure groove 312, and a pressure inclined surface 313.

The pipe holding jaw 311 is configured to protrude inward from the lower end of the inner circumferential surface so that the front end of the pipe inserted into the inside abuts and is sealed.

As shown in FIG. 7, the front end of the pipe P comes into contact with the pipe holding jaw 311, and the first packing member 30 is compressed to a certain extent by elasticity, and watertightness or airtightness is maintained therebetween. It becomes.

As in the prior art, in the case of a method of sealing the outer surface of the pipe (P), the contact surface with the packing member is not precisely processed according to the material of the pipe (P) or the coupler body 10, In some cases, it is difficult to maintain watertightness or airtightness due to a gap between the pipes, but the present invention adopts a method in which the first packing member 31 seals the front end of the pipe P, thereby sealing the pipe P or the airtight seal. Regardless of the material of the coupler body 10, it is possible to secure a reliable sealing force.

As shown in FIG. 10, the fluid pressure groove 312 is the first packing member 31 so that the first packing member 31 can be moved forward by the positive pressure formed inside the coupler body 10. ) It is a configuration formed concave inward at the rear end of the ).

The pressure inclined surface 313 is configured to be inclined in an all-round narrow shape on the inner circumferential surface of the front end of the first packing member 31 in contact with the second packing member 32 .

9 shows a state in which vacuum pressure is formed inside the coupler body 10. In this case, the first packing member 31 is deformed in shape by the vacuum pressure so as not to secure sealing force with the pipe P. Unpredictable situations may arise.

In this case, the second packing member 32 is moved backward by vacuum pressure, and by the configuration of the pressure inclined surface 313, the second packing member 32 is pressed in the direction of compressing the pipe P, , The first packing member 31 is relatively pressed in the direction of compressing the inner circumferential surface of the coupler body 10 .

On the other hand, FIG. 10 shows a state in which positive pressure is formed inside the coupler body 10. In this case, the first packing member 31 is moved forward by the positive pressure, and the positive pressure is applied to the front end of the pipe P. The sealing force is further strengthened.

When positive pressure is formed inside the coupler body 10, the sealing force is secured only by the first packing member 31, so the second packing member 32 plays little role, but even in this case, the second packing member (32) is pressed in the direction of compressing the pipe, and the first packing member 31 is relatively pressed in the direction of compressing the inner circumferential surface of the coupler body 10, thereby ensuring more reliable watertightness or airtightness do.

The packing pressure spring 33 is configured to elastically press the first packing member 31 forward, and in one embodiment of the present invention, the packing pressure spring 33 is composed of a disk spring.

As described above, when positive pressure is formed inside the coupler body 10, the first packing member 31 is moved forward by the positive pressure, and the sealing force with the front end of the pipe P is further strengthened. .

However, when the magnitude of the positive pressure formed by the relatively low-pressure fluid flowing inside the coupler body 10 is small or when the pipe P is inserted less than a predetermined depth, the first packing member 31 and The sealing force with the front end of the pipe (P) may be a problem, but the first packing member 31 is moved forward by the configuration of the packing pressure spring 33, so that the first packing member 31 and the It is possible to secure the sealing force with the front end of the pipe (P).

The packing support 40 is provided in the hollow 11 of the coupler body 10, a fluid passage hole 41 through which fluid can pass is formed in the center, and the first packing member 31 It is configured to support the rear end of the first packing member 31 so as not to move backward.

In one embodiment of the present invention, the packing support 40 has a fluid inlet hole communicating with the fluid pressurizing groove 312 so that the fluid inside the coupler body 10 can flow into the fluid pressurizing groove 312. (42) is formed.

The guide member 50 has a predetermined length in front and rear, and a pipe guide hole 51 through which the pipe P can pass is formed in the center to guide the insertion movement of the pipe P.

In one embodiment of the present invention, the guide member 50 has a guide catching protrusion (reference numeral not shown) protruding from the outer surface of the upper end, so that the guide catching protrusion is caught on the guide catching protrusion 12 of the coupler body 10. It is supported, and the pipe fixing spring 23 is seated on the front side.

The pipe P is guided by the configuration of the guide member 50 and can be accurately inserted into the center of the coupler body 10 without being shaken.

A pipe passage hole 61 is formed in the center of the closing cap 60.

In the state where the closing cap 60 is seated on the closing cap holding jaw 13 of the coupler body 10, the bending fixing part 14, which is the front end of the coupler body 10, is bent inward, and the coupler body ( 10) is fixed.

In one embodiment of the present invention, the closing cap 60 is formed with a pipe guide 62 protruding forward along the pipe passage hole 61 to insert the pipe P together with the guide member 70. It is configured to guide the

The one-touch pipe coupler provided with the split fasteners described above and shown in the drawings is only one embodiment for carrying out the present invention, and should not be construed as limiting the technical spirit of the present invention. The scope of protection of the present invention is determined only by the matters described in the claims below, and the improved and changed embodiments without departing from the gist of the present invention are obvious to those skilled in the art to which the present invention belongs. It will be said that it belongs to the protection scope of the present invention.

The one-touch pipe coupler equipped with a split fastener according to the present invention can conveniently fix a pipe in a one-touch manner, and can further securely fix a stainless steel pipe with a smooth surface and considerable rigidity, even in a vacuum or high-pressure environment. It is an industrially useful invention capable of maintaining certain watertightness or confidentiality.

Claims (5)

In a pipe coupler that connects pipes having a condition in which vacuum pressure is formed or positive pressure is formed while maintaining watertightness or airtightness, a coupler body in which a hollow is formed along the longitudinal direction and the pipe is inserted into the front of the hollow and communicates with the pipe; a pipe fixing means provided in the hollow of the coupler body and fixing the pipe so that the pipe can be inserted into the inside but the inserted pipe is not separated; A packing member provided in the hollow of the coupler body and made of a material having certain elasticity to seal a gap between the coupler body and the pipe when the pipe is inserted into the coupler body; include, The pipe fixing means includes a tightening tapered surface formed by being obliquely dug in a forearm halo shape on the inner circumferential surface of the coupler body, and the outer circumferential surface when the pipe is inserted into the inside and formed a circle by mutual combination and moved back and forth, the outer circumferential surface is the tightening tapered surface A plurality of split clamps that are in contact with each other and have a diameter changeable, and a pipe fixing spring that elastically presses the split clamps forward so that the diameter of the plurality of divider clamps decreases and the pipe inserted into the inside can be pressed and fixed. One-touch pipe coupler provided with a split clamping piece comprising a. According to claim 1, The split clamping piece is formed with a pipe insertion guide tapered surface inclined in the shape of a front light on the inner circumference of the front end, and has a front end of a shape capable of digging into the pipe by an external force at the lower end of the inner circumference, and the pipe at regular intervals along the inner circumferential surface A plurality of pipe fixing projections protruding in a direction are provided, and a sliding taper surface is formed on the outer circumferential surface in a shape that can slide back and forth along the tightening taper surface, When an external force acts in a direction in which the pipe is separated from the state in which the pipe is inserted into the plurality of split fasteners, the split fastener can be rotated in a direction in which the front end of the pipe fixing protrusion penetrates the pipe. The one-touch pipe coupler with a split tightening piece, characterized in that the inclination angle of the sliding taper surface is formed smaller than the inclination angle of the tightening taper surface. According to claim 2, The split clamping piece is made of a spring steel material capable of elastic deformation in shape by an external force, and the protruding heights of the two pipe fixing protrusions located at the outermost part on both sides of the plurality of pipe fixing protrusions are different. One-touch pipe coupler equipped with a split fastener, characterized in that formed higher than the protruding height. According to any one of claims 1 to 3, The packing member includes a first packing member having a pipe holding jaw protruding inward at the lower end of the inner circumferential surface so that the front end of the pipe inserted into the inside abuts and is sealed, and is disposed in front of the first packing member and passes through the inside. One-touch pipe coupler equipped with a split clamping piece, characterized in that consisting of a combination of a second packing member having an O-ring shape that seals between the outer circumferential surface of the pipe and the inner circumferential surface of the coupler body. According to claim 4, The first packing member has an inwardly concave fluid pressure groove formed at its rear end so that it can be moved forward by the positive pressure formed inside the coupler body, and a vacuum pressure is formed inside the coupler body to form the second packing member. When the member moves backward or positive pressure is formed inside the coupler body so that the first packing member moves forward, the front end that comes into contact with the second packing member so that the second packing member is pressed in the direction of compressing the pipe. One-touch pipe coupler equipped with a split clamping piece, characterized in that the inclined pressure inclined surface is formed on the inner circumferential surface of the portion in the shape of a front light.

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