KR20230001400U - Structure for connecting pipes - Google Patents

Abstract

The present invention provides a pipe connection structure. In one aspect of the pipe connection structure according to an embodiment of the present invention, in the pipe connection structure connecting the first and second pipes: the pipe connection structure is coupled to one end of the first pipe, and the second pipe a ring holder through which the through opening is defined; a grip ring elastically supporting an outer circumferential surface of the second pipe inserted into one end of the first pipe in a state supported by the ring holder; and a fixing cap coupled to one end of the first pipe to fix the ring holder to the first pipe. The ring holder includes: a first holder body provided with a first support protrusion and a locking jaw; and a second holder body provided with a second supporting protrusion and a hooking skirt. And, when the first and second holder bodies are coupled to each other, the grip ring is supported in a space defined between the first and second supporting protrusions, and the catching jaw is engaged with the catching skirt, so that the first holder body is coupled to the first holder body. and the coupled state of the second holder body is maintained.

Description

Pipe connection structure {STRUCTURE FOR CONNECTING PIPES}

The present invention relates to a pipe connection structure.

Piping is for fluid flow, and is mainly made of metal or synthetic resin material. Synthetic resin piping has advantages in price and workability, and in the prior art literature (Korean Patent No. 2154692, name: PB joint gripping damage prevention device for plastic piping that can be detached without tools), synthetic resin according to the prior art A joint structure of piping is disclosed.

Referring to the prior art literature, conventionally, the grip ring 40 for preventing the removal of the pipe 60 is mounted inside the first and second bodies 10 and 20 constituting the guide washer 30, , The first and second bodies 10 and 20 are press-fitted to maintain a coupled state. And conventionally, after inserting a tool such as a screwdriver or a finger into the through-hole 14 formed in the first body 10, the protrusion 22 is pressed against the locking jaw 12, and the first and second bodies 10 ) (20).

However, the pipe connection structure according to the prior art has the following problems.

First, in the prior art, a tool or a finger is inserted into the through-hole 14 to press the protrusion 22 against the locking jaw 12, that is, press the second body 20 against the first body 10. And the second body (10) (20) is separated. That is, since an external force must be substantially applied in a direction in which the first and second bodies 10 and 20 are separated, excessive force is required for separation of the two.

In addition, conventionally, the locking jaw 12 and the protrusion 22 for coupling the first and second bodies 10 and 20 are substantially inner or outer circumferential surfaces of the first and second bodies 10 and 20. is formed in Therefore, conventionally, in a state in which the first body 10 is fixed to the pipe, the protrusion 22 is pressed against the protrusion 12 so that the protrusion 12 and the protrusion 22 are separated, that is, the first and Since the second bodies 10 and 20 are separated, at least a portion of the second body 20 cannot but flow or deform in a direction inclined with respect to the axial direction of the pipe 60. On the other hand, it is preferable that the second body 20 substantially supports the pipe 60 in contact with the outer circumferential surface of the pipe 60 in order to prevent the eccentricity of the pipe 60 relative to the grip ring 40 . However, when the length of the second body 20 is increased, the flow or deformation of the second body 20 is interfered with by the pipe 60 during the separation process of the first and second bodies 10 and 20. , Separation of the first and second bodies 10 and 20 becomes more cumbersome.

And conventionally, the pipe 60 penetrates the guide washer 30 and is inserted into the pipe. However, conventionally, when the front end of the pipe 60 comes into contact with the O-ring 70, the operator misunderstands that the pipe 60 is completely inserted and contacts the pipe, and the pipe 60 is not completely inserted. A phenomenon in which work is interrupted without

Republic of Korea Patent Registration No. 2154692 (Title: PB joint gripping damage prevention device for plastic piping that can be detached without tools)

The present invention is to solve the problems caused by the prior art as described above, and the object of the present invention is to provide a pipe connection structure configured to more easily separate the ring holder.

Another object of the present invention is to provide a pipe connection structure configured to more simply separate the ring holder.

Another object of the present invention is to provide a pipe connection structure configured to enable accurate connection.

One aspect of the pipe connection structure according to an embodiment of the present invention for achieving the above object is, in the pipe connection structure connecting the first and second pipes: the pipe connection structure, at one end of the first pipe a ring holder that is coupled and defines a through opening through which the second pipe passes; a grip ring elastically supporting an outer circumferential surface of the second pipe inserted into one end of the first pipe in a state supported by the ring holder; and a fixing cap coupled to one end of the first pipe to fix the ring holder to the first pipe. The ring holder includes: a first holder body provided with a first support protrusion and a locking jaw; and a second holder body provided with a second supporting protrusion and a hooking skirt. And, when the first and second holder bodies are coupled to each other, the grip ring is supported in a space defined between the first and second supporting protrusions, and the catching jaw is engaged with the catching skirt, so that the first holder body is coupled to the first holder body. and the coupled state of the second holder body is maintained.

In one aspect of the embodiment of the present invention, the first and second support protrusions are each defined by opposite ends of the first and second holder bodies, and the locking jaw is adjacent to the first support protrusion A portion of the outer circumferential surface of the first holder body that protrudes radially is defined, and the hooking skirt extends from one end of the second holder body defining the second supporting protrusion.

In one aspect of the embodiment of the present invention, the hooking skirt is formed to a thickness less than the thickness of the second holder body, and is inclined at a predetermined angle with respect to the direction in which the second pipe is inserted into the end of the first pipe is extended

In one aspect of the embodiment of the present invention, in the process of coupling and separating the first and second holder bodies, the hooking skirt is inserted into the second pipe at one end of the first pipe with respect to the second holder body It is elastically deformed in a direction inclined with respect to the direction.

In one aspect of the embodiment of the present invention, the hooking skirt is formed with an elastic opening for elastic deformation of the hooking skirt in the process of coupling and separating the first and second holder bodies.

In one aspect of the embodiment of the present invention, at least one hooking protrusion engaged with the hooking jaw is provided at an end of the hooking skirt when the first and second holder bodies are coupled.

In one aspect of the embodiment of the present invention, the elastic opening is composed of one or more defined by cutting a part of the end of the hooking skirt, and the hooking protrusion is provided at the rest of the end of the hooking skirt except for the elastic opening do.

In one aspect of the embodiment of the present invention, at one end of the first pipe, a display window capable of checking the length of the second pipe inserted through one end of the first pipe is formed, and at the end of the second pipe, A display unit distinguished from other parts of the second pipe is provided, and when the second pipe is inserted through one end of the first pipe and positioned in place with respect to the first pipe, the display portion faces the display window. It is positioned and exposed through the display window.

According to the pipe connection structure according to the embodiment of the present invention, the following effects can be expected.

First, in an embodiment of the present invention,

1 is a front view showing a pipe connection structure according to a first embodiment of the present invention;
Figure 2 is a cross-sectional view showing the main part of the first embodiment of the present invention.
Figure 3 is a cross-sectional view showing the main part of the pipe connection structure according to the second embodiment of the present invention.

Hereinafter, the pipe connection structure according to the first embodiment of the present invention will be described in more detail with reference to the accompanying drawings.

1 is a front view showing a pipe connection structure according to a first embodiment of the present invention, and FIG. 2 is a cross-sectional view showing main parts of the first embodiment of the present invention.

1 and 2, the pipe connection structure according to this embodiment is for connecting the first and second pipes P1 and P2, and includes a ring holder 100, a grip ring 200, and a fixing Includes cap 300. Substantially, in this embodiment, the second pipe (P2) is inserted into and connected to one end of the first pipe (P1). In FIG. 1, the first pipe (P1) is shown in the form of a branch pipe, but is not necessarily limited thereto. In addition, this embodiment may further include an O-ring 400 and a washer 500.

More specifically, the ring holder 100 is coupled to one end of the first pipe P1, and a through opening 100A is defined in the ring holder 100. The through opening 100A is a place through which the second pipe P2 inserted into one end of the first pipe P1 passes.

In this embodiment, the ring holder 100 includes first and second holder bodies 110 and 120 . Substantially, the first and second holder bodies 110 and 120 are coupled to form the ring holder 100 and the grip ring 200 is supported.

The first holder body 110 includes a first supporting protrusion 111 and a hooking jaw 113, and the second holder body 120 includes a second supporting protrusion 121 and a hooking skirt 123. is provided The first and second supporting protrusions 121 are for supporting the grip ring 200, and the hooking jaw 113 and the hooking skirt 123 are the first and second holder bodies 110 (120) for maintaining the combined state.

The first and second supporting protrusions 121 are respectively defined by ends of the first and second holder bodies 110 and 120 facing each other. When the first and second holder bodies 110 and 120 are coupled to each other, the grip ring 200 is supported in the space between the first and second support protrusions 121 . Substantially, the grip ring 200, in the space between the first and second support protrusions 121, in the direction in which the second pipe P2 is inserted into one end of the first pipe P1 Only floating is allowed. The first and second supporting protrusions 121 may be defined by opposite ends of the first and second holder bodies 110 and 120 .

In addition, the locking protrusion 113 is defined by radially protruding at least a part of the outer circumferential surface of the first holder body 110 adjacent to the first supporting protrusion 111 . Further, the hanging skirt 123 extends from at least a part of one end of the second holder body 120 defining the second supporting protrusion 121 . In particular, in this embodiment, the hooking skirt 123 is formed to a thickness less than the thickness of the second holder body 120, and the second pipe P2 is at the end of the first pipe P1. It extends obliquely at a predetermined angle with respect to the insertion direction. In addition, a hooking protrusion 123A is provided at an end of the hooking skirt 123 . When the first and second holder bodies 110 and 120 are coupled, the locking protrusion 123A engages with the locking jaw 113 and hangs thereon. Therefore, when the first and second holder bodies 110 and 120 are coupled to each other, the hooking jaw 113 is engaged with the hooking skirt 123, and thus the first and second holder bodies 110 and 120 remains connected.

In this embodiment, in the process of coupling and separating the first and second holder bodies 110 and 120, the hooking skirt 123 is attached to the second holder body 120 to the first pipe P1. ), one end of which is elastically deformed in a direction inclined with respect to the direction in which the second pipe (P2) is inserted. Substantially, in the process of coupling and separating the first and second holder bodies 110 and 120, the catching protrusion 123A rides over the catching protrusion 113, and in this process, the catching skirt 123 is elastically deformed with respect to the second holder body 120 in a direction inclined with respect to the direction in which the second pipe P2 is inserted into one end of the first pipe P1, that is, in a radial direction. .

Also, in this embodiment, an elastic opening 123B is formed in the hooking skirt 123 . The elastic opening 123B is for easy elastic deformation of the hooking skirt 123 in the process of connecting and separating the first and second holder bodies 110 and 120 . To this end, the elastic opening 123B is defined by cutting a portion of an end portion of the hooking skirt 123 . Accordingly, the hooking protrusion 123A may be provided at an end of the hooking skirt 123 except for the elastic opening 123B.

Next, the grip ring 200 serves to fix the second pipe P2 inserted into one end of the first pipe P1 and is formed in a ring shape. A plurality of grip pieces 210 are provided on the grip ring 200 . The grip piece 210 obliquely extends from the inner periphery of the grip ring 200 at a predetermined angle in a direction in which the second pipe P2 is inserted into the end of the first pipe P1.

The fixing cap 300 fixes the ring holder 100 to the first pipe P1. To this end, the fixing cap 300 is screwed to one end of the first pipe P1, and a through hole 300A through which the first pipe P1 passes is formed in the fixing cap 300. .

Meanwhile, the O-ring 400 and the washer 500 are disposed inside the first pipe P1 so as to contact the ring holder 100 . Substantially, the O-ring 400 is disposed so as to contact one end of the ring holder 100, and the washer 500 is disposed between the O-ring 400 and the first pipe P1.

In the present embodiment configured as described above, during the process of coupling and separating the first and second holder bodies 110 and 120, in particular, during the separation process, the locking protrusion 123A is attached to the locking protrusion 113. will pass over At this time, the hooking skirt 123 is elastically deformed in the radial direction of the second holder body 120, so that the first and second holder bodies 110 and 120 are more easily separated. In particular, in this embodiment, the elastic deformation of the hooking skirt 123 in the radial direction of the second holder body 120 can be more easily achieved by the elastic opening 123B.

Hereinafter, a second embodiment of a pipe connection structure according to a second embodiment of the present invention will be described in more detail with reference to the accompanying drawings.

Figure 3 is a cross-sectional view showing the main part of the pipe connection structure according to the second embodiment of the present invention. Among the components of this embodiment, the same components as those of the first embodiment of the present invention are referenced by reference numerals in FIGS. 1 and 2, and detailed descriptions thereof are omitted.

Referring to FIG. 3 , in this embodiment, a display window 600 is formed at one end of the first pipe P1 and a display unit 700 is provided at the end of the second pipe P2. The display window 600 and the display unit 700 determine whether the second pipe P2 is correctly inserted into one end of the first pipe P1, that is, the second pipe P2 is connected to the first pipe P1. ) to check whether or not it is located in the correct position.

For example, the display window 600 may be defined by forming a part of one end of the first pipe P1 with a transparent material. And, the display unit 700, for example, can be defined by displaying the end of the second pipe (P2) in a color distinguished from other parts of the second pipe (P2). And, when the second pipe (P2) is inserted through one end of the first pipe (P1) and positioned in the right position with respect to the first pipe (P1), the display unit (700) faces the display window (600). By being positioned and exposed through the display window 600, the operator can confirm that the second pipe (P2) is located in the right position with respect to the first pipe (P1).

Within the scope of the basic technical idea of the present invention, many other modifications are possible to those skilled in the art, and the scope of the present invention is interpreted based on the attached utility model registration claims. It should be.

100: ring holder 110: first holder body
111: first support protrusion 113: locking jaw
120: second holder body 121: second support protrusion
123: hooking skirt 123A: support projection
123B: elastic opening 200: grip ring
210: grip piece 300: fixed cap
400: O-ring 500: washer
600: display window 700: display unit
P1, P2: Piping

Claims (8)

In the pipe connection structure connecting the first and second pipes (P1) (P2):
The pipe connection structure,
A ring holder (100) coupled to one end of the first pipe (P1) and defining a through opening (100A) through which the second pipe (P2) passes;
a grip ring 200 elastically supporting an outer circumferential surface of the second pipe P2 inserted into one end of the first pipe P1 while being supported by the ring holder 100; and
a fixing cap 300 coupled to one end of the first pipe P1 to fix the ring holder 100 to the first pipe P1; including,
The ring holder 100,
a first holder body 110 provided with a first support protrusion 111 and a locking jaw 113; and
a second holder body 120 provided with a second supporting protrusion 121 and a hooking skirt 123; including,
When the first and second holder bodies 110 and 120 are coupled to each other, the grip ring 200 is supported in a space defined between the first and second support protrusions 121, and the locking jaw ( 113) engages with the hooking skirt 123 to maintain a coupled state of the first and second holder bodies 110 and 120.
According to claim 1,
The first and second supporting protrusions 121 are each defined by ends of the first and second holder bodies 110 and 120 facing each other,
The locking jaw 113 is defined by radially protruding a portion of the outer circumferential surface of the first holder body 110 adjacent to the first support protrusion 111,
The hooking skirt 123 is a pipe connection structure extending from one end of the second holder body 120 defining the second support protrusion 121.
According to claim 2,
The hanging skirt 123 is formed to a thickness less than the thickness of the second holder body 120, and has a predetermined direction with respect to the direction in which the second pipe P2 is inserted into the end of the first pipe P1. A piping connection structure that extends obliquely at an angle.
According to claim 2,
In the process of coupling and separating the first and second holder bodies 110 and 120, the hooking skirt 123 is attached to one end of the first pipe P1 with respect to the second holder body 120. A pipe connection structure elastically deformed in a direction inclined with respect to the direction in which the second pipe (P2) is inserted.
According to claim 4,
A pipe connection in which an elastic opening 123B for elastic deformation of the hooking skirt 123 is formed in the hooking skirt 123 in the process of coupling and separating the first and second holder bodies 110 and 120. structure.
According to claim 5,
At an end of the hooking skirt 123, when the first and second holder bodies 110 and 120 are coupled, at least one hooking protrusion 123A engaged with the hooking jaw 113 is provided. connection structure.
According to claim 6,
The elastic opening 123B is composed of one or more defined by cutting a part of the end of the hooking skirt 123,
The hooking protrusion 123A is a pipe connection structure provided at the rest of the end of the hooking skirt 123 except for the elastic opening 123B.
According to any one of claims 1 to 7,
At one end of the first pipe (P1), a display window 600 capable of checking the length of the second pipe (P2) inserted through one end of the first pipe (P1) is formed,
At the end of the second pipe (P2), a display unit 700 distinguished from other parts of the second pipe (P2) is provided,
When the second pipe (P2) is inserted through one end of the first pipe (P1) and positioned in the right position with respect to the first pipe (P1), the display unit (700) faces the display window (600). A pipe connection structure positioned and exposed through the display window 600.

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