KR20100116057A - T-shape pipe for duct - Google Patents

T-shape pipe for duct Download PDF

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Publication number
KR20100116057A
KR20100116057A KR1020090034783A KR20090034783A KR20100116057A KR 20100116057 A KR20100116057 A KR 20100116057A KR 1020090034783 A KR1020090034783 A KR 1020090034783A KR 20090034783 A KR20090034783 A KR 20090034783A KR 20100116057 A KR20100116057 A KR 20100116057A
Authority
KR
South Korea
Prior art keywords
tube
pipe
shape
shaped
duct
Prior art date
Application number
KR1020090034783A
Other languages
Korean (ko)
Inventor
노성근
Original Assignee
노성근
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 노성근 filed Critical 노성근
Priority to KR1020090034783A priority Critical patent/KR20100116057A/en
Publication of KR20100116057A publication Critical patent/KR20100116057A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
    • B21C37/29—Making branched pieces, e.g. T-pieces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L41/00—Branching pipes; Joining pipes to walls
    • F16L41/02—Branch units, e.g. made in one piece, welded, riveted
    • F16L41/021—T- or cross-pieces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
    • F16L13/02—Welded joints

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

The present invention relates to a T-shaped tube, and has a shape in which a cylinder is cut into a cross section including a centerline constituting a central axis thereof, and an upper tube 110 press-molded in a shape in which a protruding tube 111 protrudes from an upper portion thereof. The lower tube 120 is coupled to the lower portion of the upper tube 110 through the welding part 130 and has a shape in which a cylinder is cut into a cross section including a center line constituting a central axis thereof. A T-shaped tube 100 for duct piping.

According to the present invention, by simply welding and joining two components manufactured using a simple press method, a T-shaped pipe for duct piping widely used in a plumbing facility can be very quickly and inexpensively and efficiently. There is an advantage that it can be manufactured.

In addition, even when a separate sealing process is not performed in the manufacturing process, there is an advantage in that leakage does not occur at the coupling part and is very efficient.

Description

T-shape pipe for duct piping {T-shape Pipe for Duct}

The present invention relates to a T-shaped pipe for duct piping, and has a shape in which a cylinder is cut into a cross section including a centerline constituting a central axis thereof, and an upper tube press-molded in a shape in which a protruding pipe 111 protrudes from the top ( 110 and a lower tube 120 coupled to the lower portion of the upper tube 110 through a welded portion 130 and having a shape in which a cylinder is cut into a cross section including a center line forming a central axis thereof. It relates to a T-shaped tube 100 for duct piping characterized in that.

T-shaped tube for duct piping, which is used for duct piping and has a shape of the capital letter "T" as shown in FIG. 1, is widely used as a piping material having a high usage range and a high frequency of use. In particular, in the case of a T-shaped pipe used in a duct pipe, it is used in a relatively low temperature range, and in most cases, the fluid flowing inside the pipe is gas such as air, and the cross section of the pipe needs to be relatively large, Strength and pressure resistance are not required but the weight should be light.

Due to these characteristics, the production of T-shaped pipes for duct piping is generally made by combining or forming thin metal plates. Initially, the metal plate is cut as shown in the shape of the flat view of the T-shaped pipe for duct piping, and the joints are soldered or joined by riveting, and then a sealant is used to prevent leakage. Since it was produced in such a way, there was a problem that it takes a lot of time and effort required for production. After that, a hole was formed in a part of the cylindrical pipe and then another pipe was inserted into the hole. However, in this case, a problem occurs in the strength of the joint between the pipes where the stress is concentrated. Of course, there was a problem that the production efficiency is low.

In order to solve the problems of the conventional T-shaped pipe for duct piping, as shown in Figure 1 by inserting the press-structured upper structure 10 in the hole 30 formed in the pipe 20 T duct pipe T A method of manufacturing a shaped tube has been proposed and used. However, in this conventional method, in order to have a structure that is stable against the pressure of the gas flowing in the duct, the portion of the upper edge 11 of the superstructure that must be inserted into the inside of the pipe 20 must be larger than the size of the hole 30. In the following, when inserting the upper structure 10 into the hole 30, the rim 11 portion is crushed once to reduce its size, and after insertion, the rim 11 portion should be stretched back to its original shape. There was a problem that many difficulties in the production. In addition, as a method of joining the upper structure 10 and the pipe 20, after drilling a plurality of holes in the coupling portion of the rim 11, pressing a portion of the edge 11 corresponding to the riveting (press or the like) A bonding method was used mainly in which a structure 40 similar to riveting was formed. Since the joining method inevitably creates a space on the joining surface, it is necessary to seal the gap once the joining process is completed, and thus there is a problem in that the manufacturing efficiency decreases due to the increase of the manufacturing process step. .

The present invention solves the problems of the existing invention described above, simply by welding and joining the two components produced using a simple press method, the T-shaped pipe for duct piping widely used in plumbing facilities is greatly The task is to be able to manufacture efficiently quickly and inexpensively.

In addition, even if a separate sealing treatment (Seal) in the manufacturing process, the problem is that the leakage does not occur in the coupling portion.

In order to achieve the above object, the T-shaped tube for duct piping of the present invention has a shape in which the cylinder is cut into a cross section including a centerline constituting a central axis thereof, and the protrusion tube 111 protrudes to the top. The lower tube 120 is coupled to the press-formed upper tube 110 and the lower portion of the upper tube 110 through a weld part 130 and has a shape in which a cylinder is cut into a cross section including a center line constituting a central axis thereof. Characterized in that comprises a.

In addition, the welding part 130 is formed by inserting a metal to be melted at a low temperature between the upper tube 110 and the lower tube 120 is pressed and heated from the outside and inside.

In addition, the welding part 130 is formed by overlapping the upper tube 110 and the lower tube 120 with each other and then compressed and arc welded.

According to the present invention, by simply welding and joining two components manufactured using a simple press method, a T-shaped pipe for duct piping widely used in a plumbing facility can be very quickly and inexpensively and efficiently. There is an advantage that it can be manufactured.

In addition, even when a separate sealing process is not performed in the manufacturing process, there is an advantage in that leakage does not occur at the coupling part and is very efficient.

Hereinafter, with reference to the accompanying drawings, a T-shaped tube according to an embodiment of the present invention will be described in detail. First, in the drawings, the same components or parts are to be noted that as indicated by the same reference numerals as possible. In describing the present invention, detailed descriptions of related well-known functions or configurations are omitted in order not to obscure the subject matter of the present invention.

 As shown in FIG. 3, the upper tube 110 has a shape in which a cylinder is cut into a cross section including a centerline constituting a central axis thereof, and is press-molded in a shape in which a protruding tube 111 protrudes at an upper portion thereof. The lower tube 120 is coupled to the lower portion of the upper tube 110 through the welding part 130 and has a shape in which a cylinder is cut into a cross section including a center line constituting a central axis thereof. In this case, the upper tube 110 is simply manufactured by using a press method, and the lower tube 120 may be manufactured by simply pressing a metal plate or a press method.

On the other hand, according to the temperature range in which the T-shaped pipe 100 for duct piping of the present invention will be used, the weld portion 130 includes lead or tin between the upper pipe 110 and the lower pipe 120. After inserting a metal that is melted at a low temperature, such as an alloy, it is pressed to be formed by heating and squeezing from the outside and the inside, or the welding part 130 is pressed after overlapping the upper tube 110 and the lower tube 120 with each other. It is possible to form by arc welding. Since the welding part 130 formed by this usage has a sealing function as such, a separate sealing is required to prevent leakage of gas flowing inside the T-shaped pipe 100 for duct piping. You will not.

Each end portion of the T-shaped pipe 100 for duct piping of the present invention may be further formed with a coupling structure or a leakage preventing ring for connecting to other pipes and preventing leakage. Such a coupling structure or a structure such as a leakage preventing ring is well known in the art to which the present invention pertains, and thus detailed description thereof will be omitted.

In the foregoing description, optimal embodiments have been disclosed in the drawings and the specification. Although specific terms have been used herein, they are used only for the purpose of describing the present invention and are not used to limit the scope of the present invention as defined in the meaning or claims. Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

1 is an exploded perspective view of a T-shaped tube according to an embodiment of the present invention

2 is a perspective view of the coupling of the T-shaped tube according to an embodiment of the present invention

3 is an exploded perspective view of a T-shaped tube according to an embodiment of the present invention

4 is a perspective view of the coupling of the T-shaped tube according to an embodiment of the present invention

<Description of Symbols Used in Main Parts of Drawing>

100: T-shaped tube 110: upper tube

111: protrusion tube

120: lower tube 130: weld

Claims (3)

An upper tube 110 having a shape in which a cylinder is cut into a cross section including a center line constituting a central axis thereof, and press-molded into a shape in which a protruding tube 111 protrudes from the upper portion; A lower tube 120 coupled to the lower portion of the upper tube 110 by a welding unit 130 and having a shape in which a cylinder is cut into a cross section including a center line constituting a central axis thereof; T-shaped pipe for duct piping, characterized in that comprises a (100). The method according to claim 1, The welding part 130 is formed by inserting a metal to be melted at a low temperature between the upper pipe 110 and the lower pipe 120, and then compressed and heated from the outside and inside to form a T-pipe. Shaped tube (100). The method according to claim 1, The welding part 130 is a T-shaped pipe for duct piping, characterized in that the upper pipe 110 and the lower pipe 120 by overlapping each other formed by pressing and arc welding.
KR1020090034783A 2009-04-21 2009-04-21 T-shape pipe for duct KR20100116057A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020090034783A KR20100116057A (en) 2009-04-21 2009-04-21 T-shape pipe for duct

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020090034783A KR20100116057A (en) 2009-04-21 2009-04-21 T-shape pipe for duct

Publications (1)

Publication Number Publication Date
KR20100116057A true KR20100116057A (en) 2010-10-29

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020090034783A KR20100116057A (en) 2009-04-21 2009-04-21 T-shape pipe for duct

Country Status (1)

Country Link
KR (1) KR20100116057A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102553965A (en) * 2012-02-16 2012-07-11 中国石油天然气集团公司 Tee joint manufacturing method
CN103599981A (en) * 2013-11-08 2014-02-26 中航飞机股份有限公司西安飞机分公司 Deep drawing forming method for T-shaped three-way pipes
CN103934306A (en) * 2013-01-22 2014-07-23 赵伟星 Manufacturing technology for steel-made welded tilted three-way pipe
CN103962796A (en) * 2013-01-27 2014-08-06 赵伟星 Manufacturing technique of steel welded lateral tee fitting

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102553965A (en) * 2012-02-16 2012-07-11 中国石油天然气集团公司 Tee joint manufacturing method
CN103934306A (en) * 2013-01-22 2014-07-23 赵伟星 Manufacturing technology for steel-made welded tilted three-way pipe
CN103962796A (en) * 2013-01-27 2014-08-06 赵伟星 Manufacturing technique of steel welded lateral tee fitting
CN103599981A (en) * 2013-11-08 2014-02-26 中航飞机股份有限公司西安飞机分公司 Deep drawing forming method for T-shaped three-way pipes
CN103599981B (en) * 2013-11-08 2015-05-27 中航飞机股份有限公司西安飞机分公司 Deep drawing forming method for T-shaped three-way pipes

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E902 Notification of reason for refusal
E601 Decision to refuse application