CN101266009A

CN101266009A - Integral helix tube

Info

Publication number: CN101266009A
Application number: CNA2007100855688A
Authority: CN
Inventors: 车圭奭
Original assignee: Hanwoong Coatech Co Ltd
Current assignee: Hanwoong Coatech Co Ltd
Priority date: 2007-03-12
Filing date: 2007-03-12
Publication date: 2008-09-17

Abstract

The invention provides an integral-type helix tube, which comprises a bent pipe, and a straight connecting pipe formed on two ends of the bent pipe, wherein the bent pipe and the straight connecting pipe are formed integrally in helix type. Therefore, a metal strip is continuously wound to form a pipe without welding joint, thereby reducing the number during the production procedure so as to obviously increase productivity, improve quality and durability.

Description

Integral helix tube

Technical field

The present invention relates to integral helix tube, and more specifically relate to the integral helix tube that the two ends of wherein direct-connected adapter and bend pipe integrally form with screw type.

Background technique

Circular hollow tube is widely used for air conditioning or the gas flow in industrial plant or the building.

Usually, hollow tubular has straight shape.Yet, little or have the position of obstacle for pipe being installed in the space, multiple bend pipe is inserted in changes its installation direction between the straight tube.

Fig. 1 to Fig. 4 illustrates the example of traditional curved hollow tubular.

Fig. 1 illustrates the structure of pipe, and its halfbody of semicircular pipe up and down is bent to have predetermined radius of curvature and to be welded to each other.

Yet the upper semi-body and the lower semi-body that form the tubular construction of Fig. 1 are to bother very much with difficult.In addition, also extremely difficult formation is managed the attachment portion (circumference is outstanding) at the pipe two ends that connect with other.In addition, when the part of the connection of upper semi-body and lower semi-body is crooked, extremely difficult bend pipe is connected to other pipes.

Fig. 2 illustrates wherein a plurality of straight sections and is coupled to each other to form the tubular construction of bend pipe.The pipe of Fig. 2 is by forming each section dividually and making with mutual hand in hand form folded section or section is welded to each other then.

Yet according to traditional technology, a plurality of sections be coupled to each other needs a large amount of processes, and the intensity of coupling part deficiency may cause the decline of durability.

Simultaneously, Korean Patent announces that openly No.1990-17678 has disclosed the bend pipe of the metal bar of the special shaping of wherein reeling continuously, and its structure will be described with reference to figure 3.

At first, traditional bend pipe is formed by the sheet metal of band shape.Sheet metal has a plurality of big width segments and little width segments, and they alternately form.Sheet metal also has in the front of longitudinal direction formation and the side of waveform.

The front of sheet metal has double curvature, and the side of the waveform of sheet metal has the single curved section perpendicular to whole length.

In addition, sheet metal is wound as screw type, make big width segments be positioned at bent out portion office and little width segments be positioned in the turn of bilge office, sequentially single curved section is inserted in the tangent bend part, and, therefore curved section is coupled to each other securely at each junction point then with the mutual press fit of curved section.

In addition, in traditional technology, disclosed the sheet metal that uses individual band shape and can obtain two sheet metals as the band shape of bend pipe.

Yet, in traditional technology, the pipe that does not exist wherein bend pipe and straight tube integrally to form.

Reason for this reason, as shown in Figure 4, bend pipe and direct-connected adapter interconnect by welding.

Yet, in this case,, still require a large amount of processes, and the junction point part may be irregular so that it makes trouble because bend pipe and direct-connected adapter are welded to each other.

Summary of the invention

The purpose of this invention is to provide integral helix tube, it can reduce the number of process to increase productivity significantly and to improve quality by removing junction point.

Another object of the present invention provides integral helix tube, and it can remove junction point to improve durability significantly by integrally forming pipe.

One aspect of the present invention provides integral helix tube, comprising: bend pipe; With the direct-connected adapter that is formed on bend pipe two ends places, wherein bend pipe and direct-connected adapter integrally form with screw type and do not have any junction point.

Herein, when volute launched, volute can be to comprise the two ends with uniform width and have the side that has periodic waveform and the bar of the intermediate portion of the opposite side of straight shape.

In addition, each of direct-connected adapter can have the annular portion of the protrusion that is formed on predetermined position to be connected to another pipe.

Further, the mutual hook of side margin of each of spiral section and sewing up then.

Herein, every section of spiral can have Z-shaped cross section, and the flange portion of section can constitute the coupling part of the side margin of sewing up.

In addition, direct-connected adapter can have the annular portion that the concave-concave outside the annular portion that is formed on protrusion is gone into, and O type circle can further be installed so that it is inserted in the recessed annular portion.

Description of drawings

Above purpose, feature and advantage with other of the present invention will be clearer from following detailed description with the accompanying drawing, and each figure is:

Fig. 1 shows the perspective view of the example of traditional pipe;

Fig. 2 shows the perspective view of another example of traditional pipe;

Fig. 3 shows the perspective view of the example of traditional bend pipe;

Fig. 4 shows the perspective view of another example again of traditional pipe;

Fig. 5 is the perspective view and the plane view of bend pipe according to an exemplary embodiment of the present invention;

Fig. 6 is the part perspective view of the coupling part of Fig. 5;

Fig. 7 shows the plane view of expansion shape of the bend pipe of Fig. 5;

Fig. 8 shows the schematic representation of manufacture process of the pipe of Fig. 5; With

Fig. 9 is the perspective view according to another typical embodiment's of the present invention bend pipe.

Embodiment

Typical embodiment of the present invention will be described with reference to the drawings below.

As shown in Fig. 5 to Fig. 7, integral helix tube according to an exemplary embodiment of the present invention comprises bend pipe 100 and is formed on the direct-connected adapter 200 at the place, two ends of bend pipe 100.Bend pipe 100 integrally forms with screw type with direct-connected adapter 200 and does not have any welds joint.Pipe is formed by the material with good formation property and durability, for example zinc-plated iron, aluminium etc.

Here, when volute launched, it was the bar of intermediate portion of opposite side that comprises the two ends with uniform width and have the shape of a side peace that has periodic waveform.

At this moment, the mutual hook of side margin C of each of spiral section S and being sewn then.

Especially, every section S of spiral has approximate Z-shaped cross section, and the flange portion of section S constituted the coupling part of the side margin C that sews up, so the side margin that closes of tooled joint is with by sewing process connecting tube securely.As a result of, the pipe according to typical embodiment of the present invention does not have welding portion.

Then, intactly look back the integral helix tube according to typical embodiment of the present invention, every section stitching side margin of spiral has the projection that causes because of the attachment portion.

Simultaneously, as shown in Figure 9, each of two direct-connected adapters 200 has the annular portion 210 of the projection that is formed on predetermined position to be connected to another pipe.For this purpose, the part of long projection should be formed on the bar place that has constituted direct-connected adapter 200 on its longitudinal direction, and it has uniform width.

In addition, direct-connected adapter 200 has annular portion 250a and the 250b that the concave-concave in annular portion 210 outsides that are formed on protrusion is gone into.The annular portion 250a that concave-concave is gone into has the different degree of depth with 250b, and promptly the degree of depth of the outer annular portion 250b that is recessed into is greater than the degree of depth of the annular portion 250a that is recessed.

When another straight tube 700 connected with direct-connected adapter 200, O type circle 260 can be installed between them.Therefore, outside the O type circle 260 that is formed by rubber at first is inserted in the recessed annular portion 250b and when inserting another straight tube 700, O type circle 260 is rotated to cross the partition wall between internal annular section 250a and the external annular section 250b, closely to be engaged in the shallow recessed annular portion 250a.

Hereinafter will method that make volute be described with reference to figure 8.

At first prepare to have the long metal bar 300 of even width.

Then, metal bar is by wherein having installed a plurality of formation rollers to 400 platform.

Two side margin of metal bar are formed roller 400 and are bent downwardly to form hook groove 310.

Then, the center line of the width of metal bar 300 is cut at its longitudinal direction and forms the roller cutting.In this case, the layout angle of cutter changes continuously alternately forming little width segments and big width segments in intermediate portion, and forms uniform width at the place, two ends.

In addition, the side surface of each metal bar that separates from the line of cut of the width of metal bar 300 to form hook 320, has therefore formed approximate Z-shaped cross section in the direction bending relative with hook groove 310.

At last, when when one cross sectional view of two metal bars 300 is watched, each metal bar has the hook groove 310 that is formed on an one end surfaces place and is positioned at the height that is lower than metal bar slightly, and at direction bending the hook 320 to be combined to hook groove 310 relative with hook groove 310.

Then, metal bar is reeled and is used sewing machine to be sewn to finish integrated pipe.

As from aforementioned description as seen, because metal bar is reeled continuously to form any welds joint of Guan Erwu, the number that can reduce manufacture process is to increase productivity significantly and to improve the quality.

In addition, because bend pipe integrally forms with direct-connected adapter, can remove middle welds joint and improve durability significantly.

Though described the present invention with reference to exemplary embodiments of the present invention, be clear that and carry out multiple modification and not depart from the spirit and scope of the present invention that in subsidiary claims and equivalent thereof, limit described embodiment for the technician in the field under the present invention.

Claims

1. integral helix tube, it comprises:

Bend pipe; With

Be formed on the direct-connected adapter at place, bend pipe two ends,

Wherein bend pipe and direct-connected adapter integrally form with screw type and do not have the welding junction point.

2. integral helix tube according to claim 1, wherein when volute launches, volute is to comprise the two ends with uniform width and have the side that has periodic waveform and the bar of the intermediate portion of the opposite side of straight shape.

3. integral helix tube according to claim 1, wherein each of direct-connected adapter has the annular portion of the protrusion that is formed on predetermined position, to be connected to another pipe.

4. according to each described integral helix tube of claim 1 to 3, the mutual hook of side margin of each of spiral section and sewing up then wherein.

5. integral helix tube according to claim 4, wherein every section of spiral has Z-shaped cross section, and the flange portion of section has constituted the coupling part of the side margin of sewing up.

6. integral helix tube according to claim 3, wherein direct-connected adapter have the annular portion that the concave-concave outside the annular portion that is formed on protrusion is gone into, and O type circle further are installed so that it is inserted in the recessed annular portion.