KR20160033466A - Reducer for conduit - Google Patents

Abstract

According to the present embodiment, a reducer for a conduit comprises: a first body of which one end is connected to a water supply side conduit, and includes a first barrel portion having a first space portion and a second barrel portion having a second space portion therein, and as the other side of the first barrel portion connecting the water supply conduit, the first body has a first water discharge hole having a first diameter at an end portion of the second barrel portion; a second body including a third barrel portion having a third space portion inserted into and coupled to a space portion in which an outer peripheral surface of the second barrel portion is formed, and a fourth barrel portion having a fourth space portion formed smaller than the third space portion, and having a second water discharge hole having a second diameter at an end portion of an opposite side from a side where the second barrel portion is inserted; and a buffer space portion arranged between the third and the fourth barrel portion, and forming a flow passage of which an outlet is narrower than an inlet by forming the diameter of a position corresponding to the third space portion larger than the diameter of a position corresponding to the fourth space portion.

Description

Reducer for conduit

The present embodiment relates to a reducer for changing the diameter of a pipe through which a fluid flows.

A reducer is a component used to change the diameter of a pipe with different diameters. In general, as a configuration for connecting different pipes, a fastening member using a screw connection, such as Korean Patent No. 10-0512467 (Aug. 29, 2005), etc., is used. However, since it is difficult to use such a structure in the case of a thin pipe having a diameter of about several millimeters, such as a water purifier, a tubular pipe is connected to both ends of a plastic connecting member.

On the other hand, water purified by a filter or the like is moved to the outflow port to be supplied to the user. At this time, a reducer and a check valve are connected to a high pressure cutoff switch HPS at the rear end of a solenoid valve, As shown in FIG. At this time, the reducer is connected to the solenoid valve side by the first pipe and the other side is connected to the check valve by the second pipe. At this time, the diameter of the first and second pipes may be the same or may be different have. At this time, the reducer is installed to drop the pressure of the purified water flowing through the first pipe and deliver it to the second pipe.

In the case of a general compact reducer that leaves a small amount of fluid or reduces the hydraulic pressure, the shape of the inlet side and the outlet side is formed through injection molding, and the outlet side is formed with a fine heading hole by using a laser or a needle.

In the case of such a small reducer, since the flow rate and the hydraulic pressure are fixed, it is difficult to produce different flow rates and different hydraulic pressures, and improvement is required.

Korean Registered Patent No. 10-0512467 (registered on August 29, 2005)

The present embodiment provides a piping reducer having an improved structure capable of controlling various flow rates and hydraulic pressures by combining parts when controlling flow rate and hydraulic pressure.

The reducer of the piping according to the present embodiment includes a first tube portion having one end connected to a water supply pipe and a first space portion formed inside and a second tube portion having a second space portion formed therein, A first body having a first outlet hole of a first diameter formed at an end of the second tubular portion as a second side of the first tubular portion; And a fourth tubular portion having a fourth tubular portion formed to be smaller than the third tubular portion, wherein the third tubular portion has a first end formed with a third space portion into which the outer circumferential surface of the second tubular portion is inserted, A second body having a second outlet hole having a second diameter formed at the other end of the side where the second tube portion is inserted; And a third passage communicating with the fourth space, wherein a diameter of a position corresponding to the third space is larger than a diameter of a position corresponding to the fourth space, And a cushioning space portion for forming the cushioning portion.

The first space may be gradually narrower than an inlet side diameter connected to the water supply side pipe.

The diameter of the second space portion may correspond to the diameter of the fourth space portion.

The first body having a first end disposed at an end of the first tube; And a second step formed at a connecting portion between the first tubular portion and the second tubular portion and supporting the end of the second body.

The outflow pipe may be inserted into the outer peripheral surface of the first tube portion of the first body so that the end portion is supported by the first step and the second body may be disposed inside the outflow pipe.

Wherein the buffer space is formed to have a smaller diameter at the outlet side facing the second outlet hole than at the inlet side facing the first outlet hole and a central axis cross-sectional shape parallel to the fluid flow direction forms a slope, The inner circumferential surface can be formed.

The outer diameters of the second tubular portion and the fourth tubular portion may correspond to each other.

The first and second bodies may be injection molded with the same material.

And the second space portion may have a larger volume than the fourth space portion.

And the water supply side pipe may be inserted into the first space portion.

According to the present embodiment as described above, the reducer is constituted by the first and second bodies that can be separated, and the buffer space portion in which the flow path is gradually narrowed is formed at the connecting portion of the first and second bodies, Compared with the reducer, the flow rate and the hydraulic pressure can be effectively controlled. Further, since the second body can be continuously connected to the connecting portion of the second body, it is possible to more finely control the flow rate and the hydraulic pressure.

1 is a perspective view of a reducer according to the present embodiment,
Fig. 2 is a cross-sectional view taken along line II in Fig. 1,
Fig. 3 is an exploded perspective view of Fig. 1,
4 is a sectional view of the first and second bodies constituting the reducer according to the present embodiment.

Hereinafter, the reducer of the piping according to the present embodiment will be described with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

In addition, the same or corresponding components are denoted by the same reference numerals regardless of the reference numerals, and redundant description thereof will be omitted. For convenience of explanation, the size and shape of each constituent member shown may be exaggerated or reduced have.

On the other hand, terms including an ordinal number such as a first or a second may be used to describe various elements, but the constituent elements are not limited by the terms, and the terms may refer to a constituent element from another constituent element It is used only for the purpose of discrimination.

As shown in FIGS. 1 and 2, the reducer according to the present embodiment may include a first body 100 and a second body 200.

The first body 100 may include a first tubular portion 110 and a second tubular portion 120.

The first tubular portion 110 is connected to the water supply side pipe T1 at one end and may include the first step 111 and the first space portion 112. As shown in Figs. 1 and 2, the first step 111 can be supported at the end of the outgoing pipe T2, which will be described later.

The diameter D1 of the first tube 110 is smaller than the diameter D1 at the inlet of the water supply pipe T1 to which the water supply pipe T1 is inserted, So that the sectional area gradually becomes narrower. On the other hand, at the outlet side of the first space portion 112 formed in the inner space of the first cylindrical portion 110, a second space portion D3 having a diameter D3 smaller than the diameter D2 of the end portion, (Not shown).

The second tubular portion 120 is injection-molded into one body with the first tubular portion 110, and the second step 121 and the second space 122 may be formed therein. At this time, the diameter of the outer circumferential surface of the second tubular portion 120 is formed to be smaller than the diameter of the outer circumferential surface of the first tubular portion 110, so that the second step 121 can be formed. A first outflow hole (101) is formed at the end of the second tubular portion (120), and water introduced into the first body (100) can be discharged to the outside. At this time, the diameter d1 of the first outlet hole 101 may vary depending on a system to be installed, and may not be formed through a physical method such as a needle or a laser process, A core is formed in the mold at the time of injection molding so that it can be formed simultaneously with injection.

2, the second space portion 122 formed on the inner side of the second cylindrical portion 120 has a diameter at the inlet side connected to the first space portion 112 and a diameter of the first water outlet hole 101 may be formed in a cylindrical shape having the same diameter on the outlet side. Accordingly, the shape of the outer peripheral surface of the second cylindrical portion 120 can also be a cylindrical shape. The second tubular portion 120 can be inserted into the second body 200 to be described later.

The second body 200 may include a third tubular portion 210 and a fourth tubular portion 220.

A third space portion 211 is formed on the inner side of the third tubular portion 210 and an inner shape of the third space portion 211 may correspond to a shape of the outer circumferential surface of the second tubular portion 120. 3 and 4, when the second tubular portion 120 is provided in a cylindrical shape, the third space portion 211 formed on the inner side of the third tubular portion 210 may also be provided in a cylindrical shape have. At this time, the length L1 of the second cylinder portion 120 and the length L2 of the third space portion 211 of the third cylinder portion 210 may correspond to each other.

The fourth tubular part 220 may have a fourth space 221 formed therein narrower than the third tubular part 210 and a second outflow hole 201 may be formed at the end thereof. At this time, the second water outlet hole 201 is provided by the insert injection molding method like the above-described first water outlet hole 101, and an insert core or the like is used in the inside of the mold without using any equipment for penetrating such as laser or needle And may be formed simultaneously with the injection of the second body 200. The diameter d2 of the second water outlet hole 201 may be the same as the diameter d1 of the first water outlet hole 101 described above. On the other hand, the diameter D3 of the second space portion 122 and the diameter D5 of the fourth space portion 221 may be formed to correspond to each other. However, the present invention is not limited to these, and it is also possible to configure the diameters thereof to be different from each other if necessary.

The second body portion 120 of the first body 100 is connected to the third body portion 210 of the second body 200. The first body portion 100 is coupled to the second body 200, As shown in Fig. At this time, the end of the second tube portion 120 and the third space portion 211 formed on the inner side of the fourth tube portion 220 may not be directly connected but may be connected to the buffer space portion 230.

1 to 4, the buffer space 230 is formed on the inner side of the second body 200 and has one end connected to the third space 211 and the other end connected to the fourth space (221). At this time, the diameter of the portion connected to the third space portion 211 is larger than the diameter of the portion connected to the fourth space portion 221, and they are connected so as to form a gentle slope, A flow path can be formed. With such a configuration, it is possible to form a flow path in which the outlet side is narrower than the inlet side.

2, the outgoing pipe T2 is inserted into the outer peripheral surface of the first cylinder 110 of the first body 100 and the end thereof is supported by the first step 111, 200 can be disposed inside the outgoing pipe T2. In this case, the outer diameter of the second body 200 is formed to be the same as the inner diameter of the outgoing pipe T2. In fact, the outgoing pipe T2 is connected to the first tubular portion 110 of the first body 100, The second tubular portion 210 of the second body 200 can be engaged with the outer tubular portion.

In addition, the first and second bodies 100 and 200 may be injection-molded using the same material. However, it is not limited thereto, and it may be formed of different materials if necessary.

In addition, the second space portion 122 may have a larger volume than the fourth space portion 221. However, the present invention is not limited thereto, and if necessary, the volume of the fourth spatial section 221 may be larger than that of the second spatial section 122, or the volumes thereof may be the same.

Hereinafter, the operation of the reducer according to the present embodiment will be described with reference to the drawings.

The water supply side pipe T1 may be inserted into the first space portion 112 formed on the first cylinder 110 side of the first body 100. Water to be introduced through the water supply side pipe T1 is generally purified water and can be supplied or not by a solenoid valve which is opened or closed by a control operation of a predetermined control unit in order to be provided to the user. The water flowing into the water supply pipe T1 is supplied to the first body 100 by a pressure of a predetermined magnitude or more by a pressure unit such as a pump unit or the like not shown. The inflowing water may be discharged to the second body 200 through the first water outlet hole 101 after filling the second space portion 122. [

The water introduced into the second body 200 first enters the buffer space 230 and moves to the fourth space 221 to fill up the spaces and is then discharged to the second water outlet 201, Through a pipe T2 to a check valve (not shown) and a high-pressure switch (HPS).

At this time, the diameters of the inlet and outlet pipes T1 and T2 connected to the reducer according to the present embodiment and the diameters of the first and second outlet holes 101 and 201 may be different from each other, The present invention is not limited thereto, and if necessary, it is also possible to configure them to be the same. The inner diameter of the second space portion 122 of the second cylindrical portion 120 and the inner diameter of the fourth space portion 221 of the fourth cylindrical portion 220 are formed to correspond to each other.

Further, according to the present embodiment as described above, it is possible to perform the injection molding without performing a physical drilling operation such as a needle or laser processing in order to form the first and second water outlet holes 101 and 201, Since the core member is injected in a state interposed in the position of the outflow hole, burrs are not formed near the outflow hole, and it is possible to prevent unintended clogging and increase in water pressure.

The damper space 230 is formed by the first and second bodies 100 and 200 separable from the reducer and the connecting portion of the first and second bodies 100 and 200 gradually narrows the flow path. The flow rate and the hydraulic pressure can be effectively controlled as compared with the reducer having a single body. Further, since the second body can be continuously connected to the connecting portion of the second body, it is possible to more finely control the flow rate and the hydraulic pressure.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Accordingly, the true scope of the present invention should be determined by the following claims.

T1; A first pipe T2; The second piping
100; A first body 101; First watering hole
110; A first tubular portion 111; 1st step
112; A first space portion 122; The second space portion
120; A second tubular portion 121; Second stage
200; A second body 201; The second watering hole
210; A third tubular portion 220; Fourth cylinder
221; A fourth spatial section 211; The third space portion
230; The buffer space
220

Claims (10)

And a second tubular portion connected to the water supply side pipe and having a first tubular portion formed on an inner side thereof with a first space portion and a second tubular portion formed with a second space portion, A first body in which a first water outlet hole of a first diameter is formed at an end of the tubular portion;
And a fourth tubular portion having a fourth tubular portion formed to be smaller than the third tubular portion, wherein the third tubular portion has a first end formed with a third space portion into which the outer circumferential surface of the second tubular portion is inserted, A second body having a second outlet hole having a second diameter formed at the other end of the second tube portion; And
A diameter of a position corresponding to the third space portion is formed to be larger than a diameter of a position corresponding to the fourth space portion, thereby forming a flow path that narrows the outlet side from the inlet side And a cushioning space portion for accommodating the cushioning material. The apparatus according to claim 1,
Wherein the diameter of the pipe connected to the water supply pipe is gradually narrower than the diameter of the inlet pipe connected to the water supply pipe. The method according to claim 1,
And the diameter of the second space portion corresponds to the diameter of the fourth space portion. [2] The apparatus of claim 1,
A first step disposed at an end of the first tube portion; And
And a second step formed at a connection portion between the first tubular portion and the second tubular portion, the second end being supported by the end of the second body. 5. The method of claim 4,
Side piping is inserted into the outer peripheral surface of the first tube portion of the first body so that the end portion is supported by the first step,
And the second body is disposed inside the outflow pipe. The apparatus according to claim 1,
The diameter of the outlet side facing the second outlet hole is smaller than the diameter of the inlet side facing the first outlet hole and the central axis cross-sectional shape parallel to the fluid flow direction forms an inclined surface to form an inner peripheral surface of the funnel shape Reducer of piping. The method according to claim 1,
And the outside diameter of the second tubular portion and the outside diameter of the fourth tubular portion correspond to each other. The method according to claim 1,
Wherein the first and second bodies are injection-molded with the same material. The method according to claim 1,
And the second space portion has a larger volume than the fourth space portion. The method according to claim 1,
And the water supply side pipe is inserted into the first space portion.

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