KR20090012810A - Pipe assembly - Google Patents

Abstract

A pipe assembly is provided to maintain border dry, in which two pipes are connected, as a sealing condition without using additional a connecting and drying member. A pipe assembly(100) comprises a first piping(10) in the formed of a surface in which an inner circumference of one end part extremely curved in the longitudinal direction, a second piping(20) in which one end part connects to the end part of the first piping, a first packing(31) sealing border of the second piping and the first piping and a fastener(40), connected to the end part circumference side of the first piping, pressurizing the first piping to the first packing.

Description

Pipe assembly

The present invention relates to a pipe assembly, and more particularly, to a pipe assembly having a structure capable of easily connecting two pipes at a predetermined angle.

For example, sewage generated in a toilet of a home toilet, sewage generated in a bathtub and a sink of a toilet, and sewage generated in a sink (sink) of a kitchen flow to an external sewage storage tank through a drain pipe. Here, the pipe connected to the toilet of the toilet, the tub and sink and the sink of the kitchen is connected to the main pipe through a pipe connecting member.

As described above, in the method of connecting the second pipe (or the pipe connecting member) to the first pipe, the first pipe and the second pipe are forcibly fitted in a state in which the end of the second pipe corresponds to the end of the first pipe. And connecting both pipes in the form of spiral coupling in the state in which spirals are formed on the inner peripheral surface of the terminal end of the first pipe and the outer peripheral surface of the terminal end of the second pipe, respectively.

The first pipe and the second pipe connected through the above method are in a straight line, that is, in a horizontal or vertical state. The connection state of both pipes after such a connection causes a lot of restrictions on the arrangement of the pipes.

That is, since the first pipe and the second pipe after the connection are inevitably kept in a straight line state, the connection method as described above cannot satisfy the design condition that the first pipe and the second pipe should be arranged at a predetermined angle.

Therefore, in order to connect and arrange the first pipe and the second pipe at a predetermined angle, an elbow connecting pipe and an auxiliary member should be additionally used. This method also has a disadvantage in that the cost of the pipe connecting process is complicated and the cost increases. .

It is an object of the present invention to provide a pipe assembly capable of connecting the second pipe at a predetermined angle with respect to the first pipe while being able to seal the boundary of both pipes without using a separate connecting member.

Piping assembly according to the present invention for realizing the above object is the first pipe is formed with a curved surface curved in the longitudinal direction of the inner peripheral surface of one end; A second pipe connected to one terminal in a state accommodated in the terminal of the first pipe; And a first packing positioned in a space formed between the curved inner circumferential surface of the first pipe and the outer circumferential surface of the second pipe to seal the boundary between the first pipe and the second pipe.

In addition, the pipe assembly according to the present invention may further include a fastener fastened to the outer peripheral surface of the front end portion of the first pipe to press the first pipe toward the first packing.

Here, the fastener is pressed in part of the region directly in contact with the first packing against the second pipe, the first packing is preferably made of an elastic body to achieve the object of the present invention. In addition, an extension piece may be formed at the front end of the first packing to contact the front end surface of the second pipe.

In addition, a plurality of protrusions are formed on the surface of the first packing corresponding to the outer circumferential surface of the second pipe, and the direction in which the protrusions are formed is preferably the same as the insertion direction of the second pipe to the first pipe.

The present invention having the structure as described above can easily connect the second pipe at a predetermined angle with respect to the first pipe in a state in which the sealing condition of the boundary portion is maintained without using an additional member. It works.

Hereinafter, with reference to the accompanying drawings of the present invention will be described in detail.

1 is a cross-sectional view of a pipe assembly according to the present invention, wherein the pipe assembly 100 according to the present invention includes a first pipe 10 and a second pipe 20 connected to the first pipe 10. Meanwhile, FIG. 1 illustrates only a part of the first pipe 10 and the second pipe 20 constituting the pipe assembly 100 for convenience.

In the 1st piping 10 which comprises the piping assembly 100 which concerns on this invention, the whole inner peripheral surface of the terminal part is formed in the curved surface 11 which was convex in the longitudinal direction. In addition, a spiral portion 12 is formed on the outer circumferential surface of the terminal 10 of the first pipe 10, and the fastener 40 described later is coupled to the first pipe 10 through the spiral 12.

The pipe assembly 100 according to the present invention includes a ring-shaped first packing 31 mounted between the curved inner circumferential surface 11 of the first pipe 10 and the outer circumferential surface of the second pipe 20. The first packing 31 is made of an elastic body, and suppresses leakage of fluid through the boundary between the first pipe 10 and the second pipe 20.

Meanwhile, the first surface of the first packing 31, that is, the surface corresponding to the inner circumferential surface 11 of the first pipe 10 may be formed to be in close contact with the curved inner circumferential surface 11 of the first pipe 10. , The second surface 21-2, that is, the portion corresponding to the outer circumferential surface of the second pipe 20, which is a general pipe, is formed as a curved surface curved in the circumferential direction.

Here, an extension piece 31-1 extending inwardly is formed at the tip of the first packing 31, and the extension piece 31-1 contacts the tip surface of the second pipe 20. In this case, the extension piece 31-1 may be formed along the power main part of the tip of the first packing 31, or may be formed by being separated into a plurality of extension pieces.

The pipe assembly according to the present invention may further include a fastener 40 coupled to the outer circumferential surface of the first pipe 10 so that the first packing 31 presses toward the first pipe 10. A spiral portion is formed on the inner circumferential surface of the fastener 40, so that the fastener 40 may be fastened to the outer circumferential surface of the first pipe 10. Here, the inner diameter of the fastener 40 is preferably smaller than the outer diameter of the first pipe 10.

Such a function of the pipe assembly 100 according to the present invention will be described with reference to the drawings.

FIG. 2 rotates the second pipe 20 by a predetermined angle in a radial direction with respect to the first pipe 10 of the pipe assembly 100 assembled in the straight state shown in FIG. It is sectional drawing which shows the state which has arrange | positioned the piping 20 at predetermined angle.

First, one end portion of the second pipe 20 is forcibly fitted into one end portion of the first pipe 10 in a state in which the first packing 31 is positioned on the outer peripheral surface of the end portion of the second pipe 20. Insert it as

Accordingly, the first pipe 10 and the second pipe 20 are connected to each other, and in particular, the first pipe 10 and the second pipe 20 are in a state of being connected between the first inner peripheral surface 11 of the first pipe 10 and the end peripheral surface of the second pipe 20. As the packing 31 is positioned, the boundary between the first pipe 10 and the second pipe 20 is completely sealed.

In this state, the fastener 40 located in the outer circumferential portion of the second pipe 20 is moved to the tip of the first pipe 10 and fastened to the tip of the first pipe 10. In the process of fastening the fastener 40 to the outer peripheral surface of the distal end of the first pipe 10 in the form of screwing, the fastener 40 presses the first pipe 10 in the radial direction, and thus The first packing 31 in contact with the inner circumferential surface 11 is pressed toward the second pipe 20 (state of FIG. 1).

In particular, because a part of the fastener 40 directly presses a part of the area of the first packing 31, the entire area of the first packing 31 is completely pressed.

As such, the packing 40 is located between the inner circumferential surface 11 of the first pipe 10 and the outer circumferential surface of the second pipe 20 so that the first pipe 10 and the second pipe 20 are firmly connected and simultaneously. The boundary between the first pipe 10 and the second pipe 20 is sealed by the first packing 31.

In such a state, when an external force (counterclockwise in FIG. 2) is applied in the radial direction to the second pipe 20 in order to arrange the second pipe 20 at a predetermined angle with respect to the first pipe 10, The second pipe 20 rotates a predetermined angle in the radial direction with respect to the first pipe 10, and the first packing 31 is along the curved inner circumferential surface 11 of the first pipe 10 in the longitudinal direction of the pipe. Slips naturally into (the state of Figure 2)

An extension piece 31 formed at the tip of the first packing 31 at the time of rotation of the second pipe 20, that is, the first packing 31 slides along the curved inner circumferential surface 11 of the first pipe 10. Since -1) contacts the front end surface of the second pipe 20, the first packing 31 is not separated from the second pipe 20. Therefore, the sliding of the first packing 31 has no effect on the function of sealing the boundary between the first pipe 10 and the second pipe 20.

Preferred embodiments of the present invention described above are disclosed for purposes of illustration, and those skilled in the art having various ordinary knowledge of the present invention may make various modifications, changes, and additions within the spirit and scope of the present invention. And additions should be considered to be within the scope of the following claims.

For example, by placing the second packing 32 at the boundary between the first pipe 10 and the fastener 40, the boundary between the first pipe 10 and the first packing 31, the first packing 31, and the like. The boundary between the fasteners 40 is sealed to completely block external leakage of the fluid.

In addition, it is possible to maximize the sealing function of the first packing 31 by forming a curved surface of the fastener 40 in contact with the first packing 31 so as to coincide with the curved surface of the first packing 31. Of course.

In addition, as shown in FIG. 2, a plurality of protrusions may be formed on the second surface 31-2 of the first packing 31 in contact with the outer circumferential surface of the second pipe 20. At this time, the forming direction of the projections is preferably formed in the same direction as the insertion direction (right to left in FIG. 1) of the second pipe 20 with respect to the first pipe 10, the second pipe by such a projection 20 is not easily separated and separated from the first pipe 10.

1 is a cross-sectional view of a piping assembly according to the present invention.

2 is a cross-sectional view showing a state in which the first pipe and the second pipe constituting the pipe assembly shown in FIG. 1 are assembled at an angle;

Claims (6)

A first pipe in which the inner circumferential surface of one terminal portion is formed as a curved surface curved in the longitudinal direction; A second pipe connected to one terminal in a state accommodated in the terminal of the first pipe; And And a first packing positioned in a space formed between the curved inner circumferential surface of the first pipe and the outer circumferential surface of the second pipe, the first packing sealing the boundary between the first pipe and the second pipe. The piping assembly according to claim 1, further comprising a fastener fastened to an outer circumferential surface of the front end of the first pipe to pressurize the first pipe toward the first packing. 3. A piping assembly according to claim 2, wherein the fastener presses the first packing directly against the second piping in such a region that a portion thereof contacts the first packing. The pipe assembly according to any one of claims 1 to 3, wherein the first packing is made of an elastic body, and an extension piece is formed at an end thereof to contact a front end surface of the second pipe. The surface of the first packing corresponding to the outer circumferential surface of the second pipe is formed with a plurality of protrusions, and the direction in which the protrusions are formed is selected from the second pipe with respect to the first pipe. A piping assembly characterized by the same as the insertion direction. The piping assembly of claim 1, further comprising a second packing positioned at the boundary of the first piping and the fastener.

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