KR200480512Y1

KR200480512Y1 - 45 90Were to be applied applied to the 45 elbow duct is 90 elbow duct

Info

Publication number: KR200480512Y1
Application number: KR2020150003498U
Authority: KR
Inventors: 민성식
Original assignee: 주식회사 성원에어테크
Priority date: 2015-06-01
Filing date: 2015-06-01
Publication date: 2016-06-02

Abstract

The design is a 45 ° elbow duct that allows 90 ° elbow ducts to be used with conventional 45 ° elbow ducts by simple cuts when a 45 ° elbow duct is needed in the process of connecting the supply duct to the 90 ° elbow duct. And to provide a 90 ° elbow duct for application.
The present invention is characterized in that a plurality of unit bending portions 10, 20 and 30 formed by cutting a plate body P to a predetermined cutting line are connected to each other by a bending joint 40 while being bent in a circular shape to form a 90 ° elbow duct L1, And,
(30) formed in the intermediate portion of the unit bending portions (10, 20, 30) is formed to be widened while a predetermined cut line (32) The beading 31 is formed at intervals to cut along the preliminary cutting line 32 formed in the 90 ° elbow duct L 1 and can be used as two 45 ° elbow ducts such as the conventional 45 ° elbow ducts .

Description

A 45 ° elbow duct is a 90 ° elbow duct that can be applied to a 45 ° elbow duct.

This design relates to a 90 ° elbow duct that can be applied to a 45 ° elbow duct, more specifically to a 45 ° elbow duct that allows a 90 ° elbow duct to be used as a 45 ° elbow duct by simple cutting operations. To < RTI ID = 0.0 > 90.degree. &Lt; / RTI >

As shown in FIGS. 1 and 2, a typical 90 ° elbow duct (L1) is used when connecting the supply and exhaust duct (L3) in a perpendicular direction, and when the supply and exhaust ducts are connected to the diagonal direction If you do not have a 45 ° Elbow, you can use a 45 ° Elbow Duct to cut the middle part of the 90 ° Elbow Duct with a handle grinder.

However, in the conventional 90 ° elbow duct, since the middle portion is formed to have a narrow inner side and a wide outer shape, when the air supply duct is connected by cutting the middle portion, the fitting portion of one portion is considerably narrow, There is a problem that the bead is not formed so as to be hooked and hooked, so that there is a danger of leaking to the outside of the joint portion and it is difficult to make a strong connection, so that it can not be utilized as a 45 ° elbow duct.

The present invention has been made in view of the above-mentioned conventional problems, and it is an object of the present invention to provide a 90 ° elbow duct which can be applied to a 45 ° elbow duct by a simple cutting operation.

The present invention will now be described with reference to the accompanying drawings.

A plurality of unit bending portions formed by cutting the plate body with a predetermined cutting line are formed into circular shapes, respectively, and are connected by bending joints to form a 90 ° elbow duct,

Wherein a bead is formed on both sides of a preliminary cutting line formed in a groove shape at an intermediate portion of the unit bending portion to form an inner width of the unit bending portion located at an intermediate portion of the unit bending portion, It is cut along the preliminary cutting line to provide two 45 ° elbow ducts like the existing 45 ° elbow ducts.

This design allows a 90 ° elbow duct to be used with a conventional 45 ° elbow duct by simple cutting when a 45 ° elbow duct is needed in the process of connecting the supply duct to a 90 ° elbow duct, It has an effect of improving the usability.

1 is a schematic view showing a conventional 90 ° elbow duct;
Fig. 2 is a 45 ° elbow duct configuration with a conventional 90 ° elbow duct cut.
Fig. 3 is an exemplary view showing a cutting process of a unit bending portion for making a 90 ° elbow duct;
Figure 4 is a schematic view of a 90 ° elbow duct of the present invention.
Figure 5 shows a 45 ° elbow duct configuration with the 90 ° elbow duct cut in this design

This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

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

As shown in FIG. 3, a plurality of unit bending portions 10, 20 and 30 are formed by cutting the plate body P into a cutting line set by a press in a preliminary step for forming a 90 ° elbow duct L1 The unit bending portions 10 and 20 are symmetrically symmetrical about the central unit bending portion 30 in the longitudinal direction.

The unitary bending portion 30 positioned at the middle portion has a predetermined width W extended to both sides, and a preliminary cutting line (not shown) for displaying a slight groove shape by a press in the central transverse direction 32 are formed.

As shown in FIG. 4, when the unit bending portions 10, 20 and 30 are formed into circular shapes and the unit bending portion 30 located at the intermediate portion is formed in a circular shape, the preliminary cutting lines 32 Are formed in a state shown in the diagonal direction in the middle.

The beading 31 is formed at predetermined intervals on both sides of the preliminary cutting line 32 formed in the unit bending portion 30 of the intermediate portion and the beading 31 is formed on both sides of the unit bending portion 10 positioned at both ends, ).

The unit bends 10, 20 and 30 formed in the circular shape are connected to each other by the bending joints 40 to form the 90 ° elbow duct L1.

As shown in FIG. 5, the air supply and exhaust ducts L3 are connected to both ends of the 90 ° elbow duct L1. When the 90 ° elbow duct L1 is changed to a 45 ° elbow duct, Along a preliminary cutting line 32 formed in the middle portion of the duct L1, is cut with a grinder or the like to provide two 45 ° elbow ducts L2 as the conventional 45 ° elbow ducts.

The 45 ° elbow duct (L2) has a portion cut through the preliminary cutting line (32) is not only sufficiently provided with a fitting portion into which the fitting width of the fitting portion into the air supply duct (L3) When it is inserted into the air supply / exhaust duct (L3), the bead (31) can be stuck to the stator so that the stiffness can be stably maintained and the stiffness can be increased by the beading (31).

L1: 90 ° Elbow duct
L2: 45 ° Elbow duct
10, 20, 30:
31: Bidding
32: Preliminary cutting line

Claims

A plurality of unit bending portions 10, 20 and 30 formed by cutting the plate body P to a predetermined cutting line are bent in a circular shape and connected by a bending joint 40 to form a 90 ° elbow duct L1 In this regard,
The unitary bending portion (30) located at an intermediate portion of the unit bending portion (10, 20, 30) is formed to extend inward and a predetermined cut line (32) The beading 31 is formed at intervals to cut along the preliminary cutting line 32 formed in the 90 ° elbow duct L 1 and can be used as two 45 ° elbow ducts such as the conventional 45 ° elbow ducts 90 ° elbow duct for 45 ° elbow ducts.