KR101765530B1 - Expansion duct - Google Patents
Expansion duct Download PDFInfo
- Publication number
- KR101765530B1 KR101765530B1 KR1020150139419A KR20150139419A KR101765530B1 KR 101765530 B1 KR101765530 B1 KR 101765530B1 KR 1020150139419 A KR1020150139419 A KR 1020150139419A KR 20150139419 A KR20150139419 A KR 20150139419A KR 101765530 B1 KR101765530 B1 KR 101765530B1
- Authority
- KR
- South Korea
- Prior art keywords
- tube
- pipe
- circumferential surface
- wiper
- duct
- Prior art date
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Classifications
-
- 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
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/08—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
-
- 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
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/08—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
- F16L27/0804—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another
- F16L27/0808—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation
-
- 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
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/08—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
- F16L27/0804—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another
- F16L27/0808—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation
- F16L27/0812—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation with slide bearings
- F16L27/0816—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation with slide bearings having radial sealing
-
- 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
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/12—Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement
-
- 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
- F16L51/00—Expansion-compensation arrangements for pipe-lines
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
Abstract
A telescopic duct is initiated. The elasticized duct according to the embodiment of the present invention may have high heat resistance and durability by including one side tube having a circular, elliptical or polygonal cross section and being telescopically connected to each other, one or more connecting tubes and another side tube.
Description
BACKGROUND OF THE
The ducts are connected to each other by ducts installed at places where expansion and contraction due to temperature changes, mechanical vibrations caused by various mechanisms, mechanical forces such as wind and earthquakes, And is used mainly to make it flow.
[0003] A stretch duct used in an industrial field mainly has a bellows shape. Such a bellows-like stretching duct is generally made of a synthetic resin, a woven fabric, or a composite material of a synthetic resin and a fabric.
Currently, high-strength steel sheets are used in automobile parts and building materials. As such high-strength steel sheets, galvanized steel sheets and ultra-high strength aluminum-coated steel sheets produced by plating cold-rolled steel sheets are widely used. However, the plating process of the cold-rolled steel sheet is carried out under severe conditions such as a high temperature of up to 600 degrees Celsius and a large amount of vibration being generated.
Therefore, when a bellows-shaped duct made of general synthetic resin or fabric is applied to an environment in which a high temperature and a lot of vibration are generated as in the case of a cold rolling process, the hermeticity is deteriorated in a short period of time There are many.
Since many of the materials used in the cold-rolled steel sheet plating process have ignitability or toxicity when exposed to the atmosphere, it is urgently required to provide a stretchable duct having high durability such as heat resistance and corrosion resistance for a long period of time under the above- It is necessary.
In addition, moisture and strong acid compounds contained in the transfer fluid accumulate in a plurality of wrinkles formed in the bellows-shaped duct, deformation of the duct in the gravity direction is caused by the load, or perforations are formed by the corrosion, The function of the duct of the shape is frequently lost.
In order to overcome such disadvantages, Korean Utility Model Registration Utility Model Registration No. 20-0368634 of the Korean Intellectual Property Office has been provided with a telescopic joint having an inner cylinder having a bellows in an outer cylinder. However, in an environment where high temperature and frequent mechanical vibration are applied as described above, It is difficult to expect the effect of extending the bellows, and it is difficult to exclude the possibility that the transferred fluid accumulates in the bellows of the bellows.
The embodiment of the present invention is intended to provide a stretch duct having high durability such as corrosion resistance and heat resistance.
The embodiment of the present invention is intended to prevent accumulation of the transferred fluid in the elastic duct.
In addition, embodiments of the present invention are intended to enable various materials to be used in the production of a stretch duct.
According to the embodiment of the present invention, there is provided a pipe having a side tube having a circular cross section or an elliptical or polygonal cross section, a side tube having a cross section corresponding to the side tube, a cross section having a shape corresponding to the side tube, Is slidably inserted into the other side of the one side tube along the longitudinal direction thereof, and one side of the other side tube is slidably inserted along the longitudinal direction thereof, and is connected to the one side tube by a telescopic connection And a plurality of outer wipers provided on the other end of the one pipe and the other end of the pipe, respectively.
Wherein the expansion and contraction duct further includes a plurality of fixing brackets respectively coupled to the other end of the one pipe and the other end of the connection pipe, and the outer wiper is provided with a plurality of fixing brackets between the central direction of the one pipe and the direction toward the other end of the one pipe Shaped outer blade and a protrusion protruding outwardly from the outer circumferential surface of the one-side tube are formed, and the outer wiper can be seated in the fixing bracket except for the outer blade.
And the reinforcing plate includes a plurality of reinforcing plates respectively installed at one end of the other pipe and one end of the connecting pipe, and a plurality of inner wipers respectively secured to one surface of the reinforcing plate, A wedge-shaped inner blade protruding in a direction between a center direction of the side tube and a direction toward one end of the other side tube may be formed.
The expansion and contraction duct may further include a plurality of fixing panels coupled to the reinforcing plate and supporting the inner wiper so as to prevent the portion of the inner wiper other than the inner blades from being separated from the reinforcing plate.
And a plurality of outer guides each having a circular, elliptic or polygonal ring shape, which surrounds the outer peripheral surface of one end of the other pipe and the outer peripheral surface of the one end of the connection pipe, .
And a plurality of inner guides each having a circular, elliptic or polygonal ring shape and having an outer peripheral surface surrounding the inner peripheral surface of the other end of the one tube and the inner peripheral surface of the other end of the coupling tube, can do.
The above-described stretch duct may further include a plurality of rolling guides formed in a ring shape and having flexibility, and the plurality of the rolling guides may be formed in a shape such that when the connecting pipe is one, And a plurality of connecting pipes which are respectively connected to the inner circumferential surface of the connecting pipe and the outer circumferential surface of the one of the connecting pipes, Between the pair of inner circumferential surfaces and the outer circumferential surfaces connected to each other and between the inner circumferential surface of the plurality of connection pipes connected to the other pipe and the outer circumferential surface of the other pipe.
In this case, the rolling guide may be a surface of a ring-shaped member made of compressed glass fiber wraps with a glass fiber cloth coated with silicone or fluorine resin.
According to one aspect of the present invention, it is possible to provide a telescopic duct having a telescopic connection structure so that a material suitable for a use environment can be easily applied, thereby providing a stretch duct having appropriate durability such as corrosion resistance and heat resistance.
According to the embodiment of the present invention, the space between the connecting parts of the telescopic connecting structure is hermetically sealed, so that the transported fluid is prevented from flowing out and accumulation of the transported fluid in the stretching duct can be prevented.
FIG. 1 is a perspective view of a telescopic duct according to an embodiment of the present invention,
Fig. 2 is a perspective view of the stretchable duct shown in Fig. 1,
Fig. 3 is an exploded perspective view of the one-
Fig. 4 is an exploded perspective view of the first connection pipe shown in Fig.
Fig. 5 is an exploded perspective view of the other pipe shown in Fig.
6 is a longitudinal sectional view of a telescopic duct according to an embodiment of the present invention.
Fig. 7 is an enlarged view of a portion indicated by A in Fig.
8 is an enlarged view of a portion indicated by B in Fig.
9 is a partial cross-sectional view for explaining the operation of the outer guide and the inner guide shown in Figs. 7 and 8. Fig.
10 and 11 are partial sectional views for explaining the operation of the rolling guide
The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated and described in the drawings. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a perspective view showing a state in which a
1 and 2, the
The one
Here, the term " telescopic connection " means that one of the plurality of hollow tube-shaped components is inserted into the other of the other and the inserted portion is slidable along its longitudinal direction, This is done chained between components. That is, the overall length of the connection member formed by the cascade connection of the components can be extended or shortened.
Typical examples of such a telescopic connection include a monocular telescope and an antenna which are configured to increase the length when used and shorten the length when carried.
Therefore, the
One
One
The transverse cross section of the one
In order to facilitate the telescopic connection of the one
Although not shown, the cross-sectional surfaces of the one
The stationary rod (50) is maintained in a shortened state when the stretchable duct (1) is transported, so that the space for loading the transportation means can be saved and the transportation efficiency can be increased. Also, it is possible to prevent the
For example, one end of the
When the fixing
The number of the fixing
However, when a force is applied to the one
The
Hereinafter, for convenience of explanation, the connecting
6 is a longitudinal sectional view showing a state in which the
Referring to FIG. 6, the one
The joint structure of the one
Fig. 3 is an exploded perspective view of the one-
3, the expansion /
The one-
In some cases, the one-
The one
The through-
However, if a foreign matter to be removed together with the transported fluid is transported, the through
The
The
Fig. 8 is an enlarged view of a portion indicated by B in Fig.
Referring to FIGS. 3 and 8 together, a wedge-shaped
As shown in the figure, the
As shown in the drawing, the
A portion of the fixing
The fixing
The fixing
Here, the fixing
The
Fig. 4 is an exploded perspective view of the
4, the expansion /
The
The structure and connection relation of the first connection pipe
The reinforcing
Fig. 7 is an enlarged view of a portion indicated by A in Fig.
Referring to FIGS. 4 and 7 together, a reinforcing
As shown in the figure, the reinforcing
7, the other surface of the reinforcing
The
A through
A wedge-shaped
That is, the
The fixing
A through
The engaging
A number corresponding to the corresponding position is formed in the
The
The
7 and 8, a reinforcing
The reinforcing
The structure and connection relationship of the second connection pipe
Fig. 5 is an exploded perspective view of the
5, the expansion /
A reinforcing
The structure and connection relationship of the other side pipe
Referring to FIG. 7, a
The
In order to increase the sealing effect by the
The
Referring to FIG. 8, a
The
The
The
Therefore, the conveying fluid is prevented from flowing out to the outside by the
The
Since frictional force is frequently applied to the
For reference, examples of the lubricating material having such properties include grease based on silicone.
The lubricant may be lost from the
It is most preferable that the sealing groove has a shape that is linearly embedded in the portion where the friction occurs and is formed in a direction not parallel to the direction in which the friction occurs and is formed in a direction perpendicular to the direction in which the friction occurs.
If a plurality of such closed grooves are formed, the loss of the lubricant is minimized by the labylinth effect, and the hermeticity of the
Therefore, the
For reference, when toxic substances are contained in the transported fluid, it is necessary to be able to quickly grasp the leakage of the transported fluid for the safety of the worker who is working in the field.
The color of the
Fig. 9 is a partial cross-sectional view for explaining the operation of the
9, the
The
Although not shown, when the one-side tube
In other words, the
Therefore, the
The
In this case, the longitudinal direction of the one-
Therefore, when the
Therefore, the structural durability of the
The
36 and 46 or the
Figs. 10 and 11 show partial cross-sectional views for explaining the operation of the rolling
Referring to Figs. 10 and 11, the rolling
The rolling
10, when the one-
In this process, the rolling
Although not shown, when one
Therefore, the rolling
Conversely, when the
Therefore, the rolling
Since the rolling
As described above, the
In the meantime, the number of the connecting
That is, when the distance to be connected to the
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the scope of the present invention is not limited to the disclosed exemplary embodiments, It is to be understood that other embodiments may be easily suggested by adding, changing, deleting, adding, or the like elements, but this is also within the scope of the present invention.
1: stretch duct 10: one side tube
11: one pipe body 12: one flange
121: through hole 122: fastening hole
17: outer wiper 173: outer blade
174: Locking device 18: Fixing bracket
181: Fixing member 19: Inner guide
20: other side pipe 21: other side pipe body
22: the other flange 221: through hole
222: fastening hole 23: reinforcing plate
231: through hole 232:
24: inner wiper 241: through hole
242: coupling hole 243: inner blade
25: fixed panel 251: through hole
252: engaging hole 253: engaging member
26: Outer guide 30: First connector
31: first connecting pipe body 33: reinforcing plate
331: through hole 332: engaging hole
34: inner wiper 341: through hole
342: engaging hole 343: inner blade
35: fixed panel 351: through hole
352: engaging hole 353: engaging member
36: outer guide 37: outer wiper
371: outer blade 372:
38: Fixing bracket 381: Fixing member
39: inner guide 40: second connection pipe
41: second connecting pipe body 43: reinforcing plate
431: through hole 432:
44: inner wiper 441: through hole
442: coupling ball 443: blade
45: fixed panel 451: through hole
452: engaging hole 453: engaging member
46: outer guide 47: outer wiper
473: blade 474:
48: Fixing bracket 481: Fixing member
49: inner guide 50: stationary rod
51, 52: Fixing member 60: Rolling guide
Claims (8)
A side pipe having a cross-sectional shape corresponding to the side pipe;
And the other side is slidably inserted into one side of the one side tube along its longitudinal direction and the other side is slidably inserted into the other side side of the one side tube along its longitudinal direction At least one connecting tube for telescopically connecting the one side tube and the other side tube;
A plurality of outer wipers provided at the other end of the one tube and the other end of the coupling tube;
A plurality of fixing brackets respectively coupled to the other end of the one tube and the other end of the coupling tube;
A plurality of reinforcing plates provided at one end of the other pipe and at one end of the connecting pipe;
A plurality of inner wipers formed with wedge-shaped inner blades protruding in a direction between a center direction of the other pipe and a direction toward one end of the other pipe, and are respectively seated on one surface of the reinforcing plate;
A plurality of fixing panels coupled to the reinforcing plate and supporting portions of the inner wiper other than the inner blades so as not to be separated from the reinforcing plate;
And a plurality of outer guides each having a circular, elliptical or polygonal ring shape, the outer guide having one end portion supported by the other surface of the reinforcing plate, the inner circumferential surface surrounding the outer circumferential surface of the one end portion of the other pipe and the outer circumferential surface of the one end portion of the connection pipe,
A wedge-shaped outer blade protruding in a direction between a center direction of the one side tube and a direction toward the other end of the one side tube and a locking protrusion protruding outward from the outer circumference surface of the one side tube are formed in the outer side wiper,
Wherein the outer wiper is configured such that a portion of the outer wiper other than the outer blade is seated in the fixing bracket
Stretching duct.
And the other end is supported by the outer wiper and the outer circumferential surface surrounds the inner circumferential surface of the other end of the one tube and the inner circumferential surface of the other end of the coupling tube and has a circular, duct.
And a plurality of rolling guides formed in a ring shape and having flexibility,
The plurality of rolling guides
Wherein the connecting pipe is disposed between the inner circumferential surface of the one side tube and the outer circumferential surface of the connecting tube and between the inner circumferential surface of the connecting tube and the outer circumferential surface of the other tube,
And a plurality of connecting pipes connected to the inner circumferential surface of the one pipe and the outer circumferential surface of the plurality of connecting pipes connected to the one pipe, And an outer circumferential surface of the other pipe,
Stretching duct.
The rolling guide
The surface of the ring-shaped member made of compressed glass fiber is wrapped with a glass fiber cloth coated with silicone or fluorine resin
Stretching duct.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150139419A KR101765530B1 (en) | 2015-10-03 | 2015-10-03 | Expansion duct |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150139419A KR101765530B1 (en) | 2015-10-03 | 2015-10-03 | Expansion duct |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20170040050A KR20170040050A (en) | 2017-04-12 |
KR101765530B1 true KR101765530B1 (en) | 2017-08-07 |
Family
ID=58580433
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020150139419A KR101765530B1 (en) | 2015-10-03 | 2015-10-03 | Expansion duct |
Country Status (1)
Country | Link |
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KR (1) | KR101765530B1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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KR200492266Y1 (en) * | 2018-06-27 | 2020-09-08 | 정진헌 | A drain pipe for sewage |
KR102699225B1 (en) * | 2021-12-31 | 2024-08-27 | 케이웨더(주) | Air guide appratus and air cleaning system including same |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006167836A (en) * | 2004-12-14 | 2006-06-29 | Makino Milling Mach Co Ltd | Splash guard of machine tool |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR200368634Y1 (en) | 2004-09-01 | 2004-11-26 | 주식회사 원일산업 | Expansion joint |
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2015
- 2015-10-03 KR KR1020150139419A patent/KR101765530B1/en active IP Right Grant
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006167836A (en) * | 2004-12-14 | 2006-06-29 | Makino Milling Mach Co Ltd | Splash guard of machine tool |
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Publication number | Publication date |
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KR20170040050A (en) | 2017-04-12 |
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