KR200481756Y1 - Branched pipe assembly - Google Patents

Abstract

The present invention is configured to have an intersecting shape in the form of an alphabet 'T' character or an 'L' character, and a first branch tube having a small area is integrally formed, leaving only a central large area connecting block through cutting, A second branch tube having a small area ensuring hermeticity through welding is fitted to the second communication passage of the block to minimize the welded joint portion and to prevent the welding burr from entering the fluid communication path , And a branch pipe assembly with reduced defective rate.
A branch pipe assembly having reduced defective rate according to the present invention includes a central large area connection block having a first communication path and a second communication path communicated with each other; A first branch tube integrally connected to the first communication passage of the connection block through a cutting process; And a second branch pipe having a small area that is fitted to the second communication passage of the connection block and is hermetically sealed through welding.

Description

[0001] BRANCHED PIPE ASSEMBLY [0002]

The present invention relates to a branch pipe assembly,

A first branch tube having a small area is formed integrally with a central large area connecting block through a cutting process, and the first branch tube having a small area is formed integrally with the first branch tube, The second branch pipe of the connection block is fitted to the second communication passage and then the second branch pipe having a small area ensuring the hermeticity is welded to minimize the welded joint portion and to prevent the welding burr from entering the fluid communication passage By configuring

Improved productivity by eliminating corrosion problems caused by leakage defects, welding residues and fluid contact, minimizing defect rate, and providing high quality products without using laser welding, which is an alternative method to eliminate corrosion problems Which is capable of ensuring unit price competitiveness and having a low defect rate, and particularly, a branch pipe assembly of SUS material for a drinking water supply device such as a water purifier or a cold / hot water machine.

A related art related to the production method of a metal pipe is disclosed in Utility Model Publication No. 20-2000-0019417 (published on Nov. 15, 2000) [hot water distributor for boiler]

This disclosure design makes it possible to make the welding very stable by increasing the contact area when welding both sides of the collecting tube and the branch tube installed and fixed on the outer circumferential surface of the collecting tube, and even if high pressure acts due to the large contact area, There is no fear of leakage of the same internal air-tightness, and the technology that ensures durability is presented.

However, in this disclosure design, since each of the plurality of branch pipes is welded to the collecting pipe, there is a problem of leakage failure as much as that, and there is a problem that the heat-deformed portion (especially the welding burr) do.

In addition, there is a patent registration No. 10-0566508 (registered date March 24, 2006) [branch pipe member for piping]

This patent allows for the selection of the most suitable construction method while improving construction cost and construction quality according to the situation and circumstances of the construction site when connecting pipes used in firefighting and construction sites, It is possible to improve the piping workability with other parts, the precision of the piping equipment, the high quality of the piping equipment construction Which is capable of completing the piping.

However, this patent also has the problem caused by welding the main pipe and the branch pipe.

Next, Patent Document 10-2009-0116316 (published on November 11, 2009) [Gas Distribution Branch]

This patent relates to a gas branch pipe installed on the outer wall surface of a high-rise apartment and a branch pipe branching from the gas vertical pipe and connected to the branch pipe externally discharged to the customer so as to be stably connected to each other. Durability and ease of operation at the time of construction are ensured and the branch pipe is stably and tightly piped to the gas inlet port, so that there is no possibility of cracking due to impact or vibration, and the internal stress of the branch pipe is eliminated And a gas distribution system is proposed.

This patent also has the problem of welded coupling of the gas inlet and the connection tube.

Then, there is a patent registration No. 10-1068287 (registration date September 21, 2011) [branch connection structure]

This patent discloses a branch connection structure for connecting and assembling a small-diameter branch pipe (branch pipe) to one side of a large-diameter main pipe. In this branch pipe connection structure, And the welding operation is simple in welding the connection part, thereby improving the convenience of the work, and the assembled state of the branch pipe is robust, so that the sealing watertightness of the connection part can be maintained for a long time.

This patent also has a problem due to welding of the main pipe and the branch pipe.

The present invention is configured to have an intersecting shape in the form of an alphabet 'T' character or an 'L' character, and a first branch tube having a small area is integrally formed by cutting only a central large area connecting block, The second branch pipe of the connection block is fitted to the second communication passage and then the second branch pipe having a small area ensuring the hermeticity is welded to minimize the welded joint portion and to prevent the welding burr from entering the fluid communication passage It is possible to provide high quality products without using laser welding, which is an alternative method that can eliminate the corrosion problem by eliminating the leakage defect, the corrosion problem caused by the contact between the welding residues and the fluid, Provided is a branch pipe assembly of SUS material for feeding water such as water purifier or water heater, which can improve productivity, assure unit cost competitiveness, and reduce defective rate. The purpose.

In addition, the present invention consists of an integrated type 1-1 and 1-2 branch tubes having a first branch tube arranged with a connection block interposed therebetween, and an inner diameter of the branch tubes 1-1 and 2- Of the inner diameter of the first branch tube and 70 to 130% of the inner diameter of the first branch tube. When the large branch connecting block is not introduced, the first branch tube and the second branch tube or the 1-1 It is an object of the present invention to provide a branch pipe assembly having a defect rate lowered so as to eliminate the problem that welding residues (burrs) invade into the fluid communication path when the branch pipes and the first and second branch pipes are mutually coupled .

Next, the present invention proposes a clamping jaw, especially an interpolation type, an extrapolation type, or an inner or outer contact type clamping jaw around the second communication path of the connecting block in which the second branch tube is inserted, It is an object of the present invention to provide a branch pipe assembly that maximizes the effect of preventing intrusion into a fluid communication path.

In addition, the present invention is characterized in that the cross-sectional shape of the connecting block is circular, elliptical or rectangular, and the circular, elliptical, and rectangular bar-shaped blocks are directly milled or lathe- It is an object of the present invention to provide a branch pipe assembly in which a branch pipe is integrally formed and a stopper for engaging the second branch pipe is formed around the second communication passage to improve both workability, .

In order to achieve the above-mentioned object, a branch pipe assembly having a reduced defective rate according to the present invention

A central large area connection block having a first communication path and a second communication path communicated with each other;

A first branch tube integrally connected to the first communication passage of the connection block through a cutting process; And

A second branch tube having a small area which is fitted in a second communication passage of the connection block and is hermetically sealed through welding;

.

In addition, in the branch pipe assembly lowering the defect rate according to the present invention

Wherein the first branch tube is composed of an integrated type 1-1 and 1-2 branch tubes arranged with a connection block interposed therebetween,

A coupling protrusion is formed around the second communication passage of the connection block in which the second branch tube is inserted,

The outer shape of the connecting block section is circular, elliptical or quadrangular,

It is preferable that the first branch tube and the second branch tube have a shape intersecting with the alphabet 'T' character or 'L' character.

The branch pipe assemblies having reduced defective rate according to the present invention are configured to have an intersecting shape in the form of an alphabet 'T' character or 'L' character, and a first small area And a second branch tube having a small area ensuring hermeticity through welding is formed to minimize a welded joint portion, and a welding burr is formed in the second branch tube, It is possible to minimize the defective rate by eliminating the leakage problem and the corrosion defect problem due to the contact of the fluid with the welding residuum, and also it is possible to minimize the defective rate, 1-1 and 1-2 branch tubes, the inner diameter of the branch tubes 1-1 to 1-20 is 70 to 130% of the inner diameter of the branch tubes 1-2, and the inner diameter of the second branch tube is the inner diameter of the first branch tube inner diameter 70 to 130% ratio, and large area connection block If the first branch tube and the second branch tube or the first branch tube and the second branch tube are coupled to each other, the problem that the welding burr is invaded into the fluid communication path is inevitably eliminated In particular, it is possible to form a fastening jaw, especially an insert type, an extrapolation type, or an inner and outer contact type fastening jaw around the second communication passage of the connecting block in which the second branch tube is inserted, The outer shape of the cross-section of the connecting block is circular, elliptical or rectangular, so that the circular, elliptical, and rectangular rod masses are directly milled or latheized The first and second communication passages and the first branch tube are formed integrally with each other, and a stopping jaw for fitting the second branch tube is formed around the second communication passage, so that the processability, productivity, To be improved It is possible to provide high quality products without using laser welding, which is an alternative method that can prevent corrosion problem. Therefore, it is possible to improve productivity, to secure price competitiveness, to reduce defective rate, especially to supply water such as water purifier or water heater A branch pipe assembly of SUS material for the device can be provided.

1 is a perspective view of a branch pipe assembly with a reduced defect rate according to the present invention;
Fig. 2 is a view of a branch pipe assembly with a reduced defect rate according to the present invention; Fig.
3 is a perspective view showing an example in which a branch pipe assembly having a reduced defective rate according to the present invention is applied to a perforated pipe for a cold / hot water machine.

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

The present invention will be described in detail with reference to the embodiments (embodiments) which can make various changes and can take various forms. It should be understood, however, that this invention is not intended to be limited to the particular forms disclosed, but is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

In the drawings, the same reference numerals are used for the same reference numerals, and in particular, the numerals of the tens and the digits of the digits, the digits of the tens, the digits of the digits and the alphabets are the same, Members referred to by reference numerals can be identified as members corresponding to these standards.

In the drawings, the components are expressed by exaggeratingly larger (or thicker) or smaller (or thinner) in size or thickness considering simplicity of understanding, etc. However, since the scope of protection of the present invention is limited It should not be.

It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only, and is not intended to limit the scope of the present invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the term " comprising " or " consisting of ", or the like, refers to the presence of a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

It is to be understood that the first, second, third, etc. described in this specification are merely referred to in order to distinguish the different components from one another, and are not limited to the order in which they are manufactured, It may not match.

First, as shown in the assembled perspective view of FIG. 1 (A), the exploded perspective view of FIG. 2 (A), and the combined cross-sectional view of FIG. 2 (B), the branch pipe assembly A, An area connection block 10, a first branch tube 20 formed integrally with the connection block, and a second branch tube 30 welded to the connection block.

The central large area connection block 10 is formed by milling or lathing a rectangular, circular or elliptical bar-like mass as it is, and drilling or the like to cut the first and second communication passages 11 and 13 And is formed integrally with the first branch tube 20.

The large-area connection block 10, which has been cut, has a large area of about 110 to 140% as compared with the first branch tube 20 having a small area (the first branch tube section and the first branch tube connection section) Based on the cross-sectional area).

Also, the large-area connection block 10 completed in this way has a large area of about 110 to 160% as compared with the first branch tube 20 having a small area.

And the welded portion 30w is welded to the second communication passage 13 of the connection block 10 and welded (welded piece 30w can be confirmed in the sectional view of FIG. 2 (B)). It is preferable that the inner diameter of the branch tube 20 has a ratio of 70 to 130% of the inner diameter of the first branch tube 10 (it is preferable that the outer diameter ratio is also the same in consideration of mass productivity).

The pipe assembly of the present invention, completed by welding the second branch tube 20, has an alphabetical letter 'T' (FIGS. 1 to 3) or an 'L' letter (FIG. 2 [B] Assembly Am) and the like. The angle formed by the branch tube (20, 21, 23, 30) and the connection block can be variously modified.

A connecting block obtained by milling or lathing a rectangular, circular or elliptical bar-like ingot as it is is roughly cut as shown in Figs. 1 A, 1 B, 2 A, (A cross-sectional reference when the first branch tube 21 is observed from the front side) (see FIG. 1 (A), FIG. 2 (A), FIG. 2 The connecting block 10A is made to have a softer edge by further machining the corner compared to the connecting block 10a of Fig. 1 (B)),

(The cross-sectional reference when the first branch tube 21 is viewed from the front) as in the right one-dot chain line on the right side of Fig. 1 [A]

May be the elliptical connection block 10C (sectional reference when the first branch tube 21 is viewed from the front) as in the right one-dot chain line on the right side of Fig. 1 [B].

As compared with the inner diameter of the first branch tube (20, 21, 23) having a small area connected to the first communication passage of the connection block through the cutting process, the second branch pipe is fitted to the second communication passage of the connection block, The inner diameter of the second branch tube 30 having a small area, which has a tight seal, can have a ratio of 70 to 130%

Also, as in the case of the pipe assembly A having the shape of intersecting with the alphabet 'T' shape, the first branch tube 20 is formed as the integral type 1-1 and 1-2 In the case of the branch tubes 21 and 23, it is preferable that the inner diameter of the first branch tube is about 70 to 130% of the inner diameter of the first and second branch tubes (in this case, The same ratio is preferable).

Further, a stopping protrusion is formed around the second communication passage 13 of the connection block 10 in which the second branch tube 20 is inserted, so that the welding residues burr To maximize the effect of preventing intrusion into the fluid communication path.

1, 2, and 3) (welded pieces 30w are omitted for the sake of convenience except for FIG. 2 (B)). ),

 (Refer to a variation in the lower one-dot chain line at the lower left side of FIG. 2 (B)) fitted into the second branch tube 30 and contacting the inner circumferential surface of the second branch tube 30,

(Refer to Fig. 2 [B] middle double-dashed circle in the middle of the left half), or both the inner and outer contact-type engagement jaws 13b and 13a in contact with both the inner and outer surfaces when the second branch tube 30 is fitted.

For example, if the branch pipe assembly (A) with a reduced defect rate according to the present invention is a branch pipe assembly of SUS material for a drinking water supply device such as a water purifier or a cold /

The welding residuals buried in the welding of the second branch pipe are not welded to the fluid communication path but exist only as welded welds 30w outside the communication passages 13 and 11, ) Is intercepted by the contact.

In addition, the welded joints are minimized through the integral first branch tubes (20) (21, 23) to minimize the generation of the leakage defects, thereby minimizing the defective rate such as leakage defects and corrosion defects as a whole,

In addition, it is possible to provide high quality products without using laser welding, which is an alternative method that can prevent corrosion problems, so that it is possible to improve productivity and secure price competitiveness.

2 (B), the second branch pipe 30 is connected to the lower end of the connection block 10 for fitting the second communication passage 13, It is preferable to introduce the spacing array cut-out portion 33 of the outer contact type engagement portion 33 to be welded to the outer contact type engagement portion 13a so as to improve the bonding strength.

As can be seen from FIG. 3, when the present invention is utilized as a branch pipe assembly of SUS material for a water supply device to be fed, it can be constituted in particular of a perforated pipe assembly (AM) for a cold / hot water machine.

In this case, the perforation tip 31 of the water tank (or jacket) is joined (particularly screwed) to the upper portion of the second branch pipe 30,

The purified water discharged from the perforated purified water tank (or the jacket) flows along the inside of the second branch pipe at the upper end of the second branch pipe and flows through the second communication passage 13 of the connection block 10, Branched into two communication passages 11A and 11B, and then divided into first and second branch pipes 21 and 23, respectively, and branched into a hot water tank and a cold water tank, respectively.

The puncturing tip 31 has a plurality of irregular (or regular) communication grooves 31g formed by corrosion or the like in order to ensure a constant and smooth discharge around the circumference of the cone (in the case of a jacket type purified water tank made of a synthetic resin sheet Thereby eliminating the problem that the drainage of purified water may not be performed smoothly when the jacket lower sheet is in close contact with the peripheral edge of the pierced tip)

A knurling portion 31k is formed under the piercing tip 31 so that the piercing tip can be easily coupled to the inner surface female thread of the second branch tube 30. [

In the above description, conventionally known techniques related to the specific dimensions, specifications, materials, and the places of use of the branch pipe assembly are omitted, but those skilled in the art can easily guess, deduce, and reproduce them.

While the present invention has been described with reference to the accompanying drawings, it is to be understood that the present invention is not limited thereto, and various modifications, alterations, and permutations thereof may be made by those skilled in the art. And should be construed as falling within the scope of protection of the present invention.

A, Am, AM: pipe assembly 10, 10A, 10a, 10B, 10C: connection block
11A, 1B, 13: communication paths 13A, 13B, 13a, 13b:
20, 21, 23, 30: branch pipe

Claims (4)

A central large area connection block having a first communication path and a second communication path communicated with each other;
A first branch tube integrally connected to the first communication passage of the connection block through a cutting process; And
And a second branch tube having a small area that is fitted to the second communication passage of the connection block and secured through hermetic sealing,

Wherein the first branch tube is composed of an integrated type 1-1 and 1-2 branch tubes arranged with a connection block interposed therebetween,
A coupling protrusion is formed around the second communication passage of the connection block in which the second branch tube is inserted,
The latching jaw is an inner and outer contact type latching jaws (13b, 13a) which are in contact with both the inner and outer surfaces when the second branch tube (30) is fitted,
The second branch pipe (30) is formed with a plurality of spaced apart cutouts (33) at the lower end for fitting the second communication passage (13) of the connection block (10)
The large-area connection block 10 has an area of about 110 to 140% as compared with the first branch tube 20 having a small area,
The first branch pipe of the connection block is connected to the second communication passage of the connection block by a cutting process and is connected to the second branch pipe of the connection block in a smaller area than the inner diameter of the first branch pipe, The inner diameter of the branch tube 30 has a ratio of 70 to 130%

(AM) for a cold / hot water machine, which is used as a branched pipe assembly of SUS material for a drinking water supply device,
The purified water tank perforation tip 31 is coupled to the upper portion of the second branch pipe 30,
The purified water discharged from the perforated water tank flows along the inside of the second branch pipe at the upper end of the second branch pipe and flows through the second communication passage 13 of the connection block 10 to the 1-1 and 1-2 communication passages 11A, and 11B, branched into first and second branch tubes 21 and 23, respectively, and branched and supplied to the hot water tank and the cold water tank, respectively,
The puncturing tip 31 is formed with a plurality of communication grooves 31g for ensuring an even and smooth discharge around the outer periphery of the cone,
Characterized in that a knurling portion (31k) is machined in the lower portion of the piercing tip (31) so that the piercing tip is easily engaged with the internal surface female thread of the second branch tube (30). The method according to claim 1,
The outer shape of the connecting block section is circular, elliptical or quadrangular,
Wherein the first branch tube and the second branch tube have a shape intersecting with an alphabet 'T' shape. delete delete

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