KR20180010068A - Pipe connection device for preventing turbulence - Google Patents

Abstract

A pipe coupling device capable of preventing vortex is disclosed. According to the present invention, the pipe coupling device capable of preventing vortex includes: a connecting member including a body to which a pipe is coupled, and a protruding portion formed at an end of the body, wherein a flow path is formed through the body and the protruding portion, a portion of an inner surface of the body to be engaged with the pipe has a step with an inner surface of the protruding portion, and a portion of an inner surface of the body to be engaged with the pipe at least partially has a thread.

Description

[0001] PIPE CONNECTION DEVICE FOR PREVENTING TUBULAR FIELD [0002]

The present invention relates to a pipe coupling device capable of vortex prevention in connection with a plastic pipe.

A pipe made of plastic is connected to the end of a pipe coupling device as shown in Fig. 1 for coupling with a plastic pipe made of another pipe or plastic.

Referring to FIG. 2, the pipe coupling device coupled to the end of the pipe includes a stub end member 110 and a flange portion 120. The stub end member 110 uses an adhesive for coupling with the pipe in such a manner that it directly connects to the pipe. In addition, since the pipe is directly connected to the stub end member 110, the outer diameter of the pipe is equal to the diameter of the inside of the stub end, so that a step is formed on the inner flow path by the thickness of the pipe, There is a problem that a risk of breakage may occur.

KR2015-0064505 a

The present invention is to provide a pipe coupling device capable of preventing vortex flow.

According to an aspect of the present invention, a vortex-proof pipe coupling device is provided.

According to an embodiment of the present invention, there is provided a portable terminal including a connection member including a body to which a pipe is coupled and a protrusion formed at a terminal end of the body, wherein a flow path is formed through the body and the protrusion, Wherein a portion of the surface to be engaged with the pipe has a step with the inner surface of the protrusion and a portion of the inner surface of the body to be engaged with the pipe has a thread at least at a portion thereof .

The inner diameter of the body coupled with the pipe is larger than the inner diameter of the protrusion.

The inner diameter of the body is formed to be equal to the outer diameter of the pipe.

The inner diameter of the projecting portion is formed to be equal to the inner diameter of the pipe.

The connecting member may be formed by insert injection.

The connecting member is formed by mixing glass fiber with polyvinyl chloride (PVC), polypropylene (PP), polyphenylene sulfide (PPS), or polyphthalamide (PPA) Or may be made of engineering plastics.

According to another embodiment of the present invention, there is provided a connector comprising: a connection member including a body to which a pipe is coupled and a protrusion formed at a terminal end of the body; And a flange portion arranged at a position corresponding to the protruding portion at the outside of the connecting member or at a position corresponding to the position between the body and the protruding portion, wherein a flow path is formed through the body and the protruding portion, And a portion of the surface to be engaged with the pipe has a step with the inner surface of the protrusion.

The inner diameter of the body coupled with the pipe is larger than the inner diameter of the protrusion.

The portion of the inner surface of the body to be engaged with the pipe may have a thread at least in part.

The inner surface of the flange portion may be formed with a hole having a taper angle corresponding to the contour of the protrusion where the flange portion is located.

By providing the pipe coupling device according to an embodiment of the present invention, it is possible to prevent the generation of vortex in the flow path when coupled with the pipe.

Therefore, the present invention has an advantage in that the risk of breakage of the product made of plastic can be reduced by not interfering with the flow of the fluid on the flow path extending from the pipe.

1 shows a conventional pipe coupling device;
2 is a sectional view of a conventional pipe coupling device;
3 illustrates a pipe coupling apparatus according to an embodiment of the present invention.
4 is a cross-sectional view of a pipe coupling apparatus according to an embodiment of the present invention.
5 is a view illustrating a connection between a connecting member and a flange portion according to an embodiment of the present invention.
6 is a view showing a pipe coupling to a pipe coupling device according to an embodiment of the present invention;
7 illustrates a metallic member according to an embodiment of the present invention.
8 is a cross-sectional view of a pipe coupling apparatus according to an embodiment of the present invention.
Figure 9 illustrates pipe coupling in accordance with one embodiment of the present invention.
10 is a view showing a pipe coupling apparatus according to another embodiment of the present invention.
11 is a view showing the connection of a pipe coupling device and a pipe according to another embodiment of the present invention.

As used herein, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. In this specification, the terms "comprising ", or" comprising "and the like should not be construed as necessarily including the various elements or steps described in the specification, Or may be further comprised of additional components or steps. Also, the terms "part," " module, "and the like described in the specification mean units for processing at least one function or operation, which may be implemented in hardware or software or a combination of hardware and software .

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

FIG. 3 is a view showing a pipe coupling apparatus according to an embodiment of the present invention, FIG. 4 is a sectional view of a pipe coupling apparatus according to an embodiment of the present invention, and FIG. FIG. 6 is a view showing a connection of a pipe to a pipe coupling apparatus according to an embodiment of the present invention, and FIG. 7 is a cross-sectional view of an embodiment of the present invention FIG. 8 is a cross-sectional view of a pipe coupling apparatus according to an embodiment of the present invention, and FIG. 9 is a view illustrating pipe coupling according to an embodiment of the present invention.

Referring to FIG. 3, a pipe coupling apparatus 300 coupled to an end of a pipe according to an embodiment of the present invention includes a connecting member 310 and a flange 320.

The connecting member 310 is made of plastic and is coupled to the end of the pipe. That is, the connecting member 310 is a portion where the pipe is directly inserted.

This connecting member 310 includes a body 410 and a protrusion 420, as shown in FIG.

The body 410 and the protrusion 420 are formed with flow paths and the flow path formed in the body 410 and the protrusion 420 is formed to have an internally stepped portion to prevent vortex generation.

When the fluid moves in the flow path, vortexes may be generated due to energy transfer, speed, etc. In particular, if there is an obstacle obstructing the flow of the fluid in the flow path, .

This vortex affects the pipe coupling device and can shorten the life of the pipe coupling device 300. [ Accordingly, the pipe coupling device 300 according to an embodiment of the present invention has such a structure as to remove such an obstacle to facilitate the flow of the fluid to prevent vortex from being generated.

There is no obstacle obstructing the fluid flow in the flow path of the pipe coupling device 300 and vortex is not generated. As a result, the present invention has an advantage that the life of the pipe coupling device 300 can be extended.

Referring to FIG. 4, the body 410 is a portion into which a pipe is directly inserted.

4, a channel is formed through the body 410 and the protrusion 420, and a portion of the inner surface of the body 410, which is coupled with the pipe, has a step with the inner surface of the protrusion 420 .

That is, the diameter (inner diameter) of the inner surface of the body 410 may be formed to be larger than the diameter (inner diameter) of the inner surface of the protrusion 420.

In this case, the body 410 is a portion to which the pipe is coupled, and the inner diameter of the body 410 may be formed to be the same as the diameter (outer diameter) of the outer surface of the pipe.

When the inner diameter of the body 410 is larger than the outer diameter of the pipe 410, the pipe 410 is detached from the body 410 even if the pipe 410 is inserted into the body 410, do.

Therefore, it is preferable that the inner diameter of the body 410 is formed to be equal to the outer diameter of the pipe.

The protrusion 420 formed at one end of the body 410 is formed to have a taper angle with respect to the body 410 as a reference.

The inner diameter of the protrusion 420 is formed to be equal to the inner diameter of the pipe.

That is, by forming the inner diameter of the protrusion 420 to be the same as the inner diameter of the pipe, steps are not generated on the flow path formed by pipe connection in the body 410 and the protrusion 420.

More specifically, in a state where the pipe is not coupled, a step is formed in the inner space of the protrusion 420 adjacent to the body 410 and the body 410. [

6, when the pipe is inserted into the body 410, the inner diameter of the pipe and the inner diameter of the protrusion 420 are formed to be equal to each other. Therefore, A step is not formed.

Accordingly, the pipe coupling device 300 according to an embodiment of the present invention can prevent the generation of vortices on the flow path when the pipe coupling device 300 is coupled to the pipe, and consequently, 300) can be reduced.

The body 410 and the protrusion 420 of the connecting member 310 may be simultaneously formed through insert injection.

In addition, the connecting member 310 may be made of a fluororesin. The fluororesin generally refers to a resin containing fluorine in the molecule. Examples of the fluororesin include polytetrafluoroethylene (PTFE), polychlorotrifluoroethylene (PCTFE) and the like, and tetrafluoroethylene perfluoroalkyl vinyl ether copolymer (Tetra fluoro ethylene perfluoro alkyl vinyl ether coppolymer, PFA). These fluororesins are excellent in heat resistance, chemical resistance, electrical insulation, friction coefficient, and adhesion and adhesiveness. That is, since the connecting member 310 is formed of the fluororesin, and the frictional coefficient of the connecting member 310 is small, the flow rate change due to the laminar flow in the flow path can be minimized.

The flange portion 320 is made of plastic and includes at least one hole 325.

The flange portion 320 is coupled to the outside of the connecting member 310.

The inner hole 330 of the flange portion 320 is formed with a taper angle. The flange portion 320 can be engaged with the outside of the protruding portion 420 of the connecting member 310. [ The inner hole 330 of the flange portion 320 has a taper angle so that the longitudinal section of the protrusion 420 of the connecting member 310 does not protrude out of the flange portion 320. [

FIG. 5 shows an example in which the flange 320 is coupled to the outside of the connecting member 310. 5, the protrusion 420 is protruded outward from the flange 320 with respect to the flange 320. However, the protrusion 420 may be formed so as to coincide with the longitudinal section of the flange 320, .

The flange portion 320 may be formed of a fluorine resin as in the case of the connecting member 310.

In order to prevent warping of the flange portion 320 made of plastic, a metal member 700 may be included in the flange portion 320. As a result, the strength of the flange portion 320 can be reinforced.

Although the metal member 700 is shown as having a circular shape in FIG. 5, the metal member 700 may have various shapes such as a rectangular shape. However, since the flange portion 320 has a circular shape, it is preferable that the metal member 700 also has a circular shape.

The metal member 700 can be implanted inside the flange portion 320 through insert injection. More specifically, the metal member 700 may be included inside the flange portion 320 by inserting the metal member 700 into the plastic material of the flange portion 320 and performing insert injection.

In this case, at least one hole 730 may be formed in the body 710 of the metal member 700 to firmly engage the metal member 700 inside the flange portion 320. When the molten plastic fills the holes 730 in the insert injection process of the flange portion 320, the metal member 700 is firmly coupled to the inside of the flange portion 320.

7, the metal member 700 includes a body 710, at least one protrusion 720, and at least one hole 730.

The projecting portion 720 may protrude toward the inner ends of the flange portion 320 with respect to the body 710, as shown in Fig.

More specifically, some of the protrusions 720 protrude rightward with respect to the body 710, and the remaining protrusions 720 protrude leftward with respect to the body 710. Here, the protrusions 720 may protrude in opposite directions with respect to the same point of the body 710.

Further, protrusions 720 and holes 325 penetrating the body portion may be formed. A bolt or the like for fastening the hole 325 may be inserted.

The protrusion 720 may extend from the body 710 to the inner one end of the flange portion 320 and the protrusion 720 may extend from the body 710 to the inner other end. However, the protrusions 720 do not protrude to the outside of the flange portion 320 but can protrude only to the inner end, that is, the surface of the flange portion 320.

The flange portion 320 may include a metal member without protrusions 720 therein, but the flange portion 320 may be distorted in a direction opposite to the direction of bolt or the like.

However, when the metal member 700 having the protrusions 720 is used, the protrusions 720 minimize the force corresponding to the twist in the direction opposite to the direction of the fastening. As a result, no distortion occurs in the flange portion 320 (see FIG. 9).

FIG. 10 is a view showing a pipe coupling apparatus according to another embodiment of the present invention, and FIG. 11 is a view showing a pipe connection apparatus and a pipe connection according to another embodiment of the present invention.

10 and 11, the pipe coupling apparatus 300 according to another embodiment of the present invention includes a connecting member 1010 and a flange portion 1020. [

The connecting member 1010 of FIG. 10 includes a body 1110 and a protrusion 1120 similarly to the connecting member 310 described with reference to FIG. A passage is formed through the body 1010 and the protrusion 1020 and a portion of the inner surface of the body 1010 which is coupled with the pipe is formed to have a step with the inner surface of the protrusion 1020.

Further, a thread is formed on at least a part of the inner surface of the body 1110 to be engaged with the pipe.

The inner diameter of the body 1110 having a thread is formed to be the same as the outer diameter of a pipe having a thread at an outer part as described in Fig. In addition, the length of the body 1110 having threads may be the same as the length of the threaded portion formed in a part of the pipe outer side.

In this way, since a thread is formed on the inside of the body 1110, the pipe can be rotated and matched with the screw direction, thereby improving convenience.

Also, the protrusion 1120 is formed so as to have a step with the inner diameter of the body 1110 as described in Fig.

That is, the inner diameter of the protrusion 1120 is formed to be equal to the inner diameter of the pipe.

The inner diameter of the protruding portion 1120 and the inner diameter of the body 1110 are formed to be equal to the difference in inner diameter and outer diameter of the pipe.

Through this, the pipe is inserted into the body 1110, and the protrusion 1120 prevents the flow on the pipe from continuing without a step, thereby preventing the generation of the vortex.

The flange portion 1020 is made of plastic and is positioned outside the connecting member 1010. [ The flange portion 1020 is formed to have a taper angle.

3, the flange portion 1020 may include therein a metal member 700 for preventing the pipe from being twisted when a plurality of pipes made of plastic are coupled. This is the same as that described with reference to FIG. 3, so duplicate descriptions will be omitted.

11 shows an example in which a pipe is coupled to the pipe coupling device 300. As shown in FIG. 11, a screw thread is formed on the body 1110 of the connecting member 1010 and a thread is formed on the end of the pipe so that the pipe can be easily coupled to the body 1110 without any other means such as an adhesive .

By forming the inner diameter of the projecting portion 1120 of the connecting member 1010 to be the same as the inner diameter of the pipe, it is possible to prevent the vortex from being generated by preventing the stepped portion of the flow path leading from the pipe from being formed when the pipe is coupled to the body 1110 There is an advantage to be able to do.

It will be apparent to those skilled in the art that various modifications, additions and substitutions are possible, without departing from the spirit and scope of the invention as defined by the appended claims. Should be regarded as belonging to the following claims.

300: pipe coupling device
310:
320: flange portion
410: Body
420: protrusion

Claims (12)

And a connecting member including a body to which the pipe is coupled and a protrusion formed at an end of the body,
Wherein a portion of the inner surface of the body that is to be engaged with the pipe has a step with the inner surface of the protrusion and a portion of the inner surface of the body that is to be coupled with the pipe is at least And has a thread at a portion thereof.
The method according to claim 1,
Wherein the inner surface diameter of the body coupled with the pipe is greater than the inner surface diameter of the protrusion.
The pipe coupling apparatus according to claim 1, wherein an inner diameter of the body is formed to be equal to an outer diameter of the pipe.
The method according to claim 1,
And the inner diameter of the projecting portion is formed to be equal to the inner diameter of the pipe.
The method according to claim 1,
Wherein said connecting member is formed by insert injection.
The method according to claim 1,
The connecting member is formed by mixing glass fiber with polyvinyl chloride (PVC), polypropylene (PP), polyphenylene sulfide (PPS), or polyphthalamide (PPA) Wherein the pipe is made of a mixed material or an engineering plastic.
A connecting member including a body to which the pipe is coupled and a protrusion formed at the end of the body; And
And a flange portion arranged at a position corresponding to the protrusion outside the connecting member or at a position corresponding to between the body and the protrusion,
Wherein a passage is formed through the body and the protrusion and a portion of the inner surface of the body to be coupled to the pipe has a step with the inner surface of the protrusion.
8. The method of claim 7,
Wherein the inner surface diameter of the body coupled with the pipe is greater than the inner surface diameter of the protrusion.
8. The method of claim 7,
Wherein the portion of the inner surface of the body to be engaged with the pipe has a thread at least in part.
8. The method of claim 7,
And the inner diameter of the body is formed to be equal to the outer diameter of the pipe.
8. The method of claim 7,
And the inner diameter of the projecting portion is formed to be equal to the inner diameter of the pipe.
8. The method of claim 7,
Wherein an inner surface of the flange portion is formed with a hole having a taper angle corresponding to an outer shape of the projection portion in which the flange portion is located.

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