KR101547967B1 - Synthetic resin pipe - Google Patents

Synthetic resin pipe Download PDF

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Publication number
KR101547967B1
KR101547967B1 KR1020150098190A KR20150098190A KR101547967B1 KR 101547967 B1 KR101547967 B1 KR 101547967B1 KR 1020150098190 A KR1020150098190 A KR 1020150098190A KR 20150098190 A KR20150098190 A KR 20150098190A KR 101547967 B1 KR101547967 B1 KR 101547967B1
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KR
South Korea
Prior art keywords
spiral
bending resistance
wall portion
resistance wall
synthetic resin
Prior art date
Application number
KR1020150098190A
Other languages
Korean (ko)
Inventor
김종순
Original Assignee
주식회사 태광수지
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Priority to KR1020150098190A priority Critical patent/KR101547967B1/en
Application granted granted Critical
Publication of KR101547967B1 publication Critical patent/KR101547967B1/en

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    • 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
    • F16L9/00—Rigid pipes
    • F16L9/12—Rigid pipes of plastics with or without reinforcement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/001—Pipes; Pipe joints
    • 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
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/14—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics
    • 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
    • F16L9/00—Rigid pipes
    • F16L9/12—Rigid pipes of plastics with or without reinforcement
    • F16L9/127—Rigid pipes of plastics with or without reinforcement the walls consisting of a single layer

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

Abstract

The present invention relates to a synthetic resin pipe. This is a synthetic resin pipe having a spiral pipe member extending in a spiral direction and a joining portion for joining the spiral pipe member, the spiral pipe member comprising: A hollow spiral casing having a square cross-sectional shape; A bending resistance wall portion which is located in the center of the inside of the spiral casing and includes four bending resistance wall portions integrally formed at both ends in the width direction of each bending resistance wall portion, A reinforcing member including a gap retaining portion; And four torsion resistance ribs that connect the points where the bending resistance wall portion and the resistance wallpaper portion meet and the four corner portions of the spiral casing to each other to block the eccentric movement of the reinforcing member in the spiral casing when the torsional force is externally applied do.
The synthetic resin pipe of the present invention having the above-described structure is characterized in that it has a strong resistance against the vertical load, and is provided with a tensile portion and a support portion that maximize the ability of the resistance wall portion and the resistance wall portion to resist vertical load, And the torsion resistance ribs are separately provided on both sides of the resistance wall portion to stably cope with the torsional force, thereby providing excellent durability and reliability.

Description

Synthetic resin pipe

The present invention relates to a synthetic resin pipe.

The so-called synthetic resin pipe formed by molding with polyethylene resin is advantageous in that it is very light and less expensive than conventional concrete pipe or cast iron pipe, and particularly excellent in corrosion resistance. For this reason, the synthetic resin pipe is widely used for various drainage pipes buried in the ground, irrigation water for agriculture, and sewage pipes for living.

However, since the synthetic resin pipes are buried in the ground, they must be affected by the water pressure and the earth pressure. In particular, the synthetic pipe embedded in the ground of a road passing through an automobile can be easily damaged because it receives the dynamic load which is transmitted while the vehicle passes, in addition to the pressure of the earth pressure itself.

Therefore, the synthetic resin pipe is required to have sufficient rigidity so as not to be easily deformed by the pressure coming from the outside, and also to have excellent resilience. Various types of synthetic resin pipes have been proposed to satisfy such demands.

For example, Korean Patent Registration No. 10-1484573 (high-strength synthetic resin pipe) has a configuration in which a substantially A-shaped bottom support portion is applied inside a tubular body of a synthetic resin pipe. The supporting portion is composed of the first and second inclined members and the elastic supporting member, and integrally forms an inward surface of the tubular body.

However, the conventional high-strength synthetic resin pipe has a disadvantage that it does not have a stable means for maintaining the interval between the first and second inclined members. Therefore, for example, when a vertical load is applied from the outside of the tubular body 11, the first and second inclined members can bend inwardly or outwardly and buckle. This problem is more easily caused because the thickness of the first and second inclined members is thinner than the length.

Further, the synthetic resin pipe may be easily broken when receiving a bending force from the outside. Since the tubular body is spirally extended and is adhered and fixed by the joint member, if the bending force is applied to the synthetic resin tube itself, the tubular body receives the twisting force at the position of the tubular body. This is because it can not be effectively countered.

Korean Registered Patent No. 10-1484573 entitled "High Strength Synthetic Pipe Tubes" (registered on January 14, 2015)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a bending resistance wall portion that resists vertical load and a first gap retaining portion and a resistance wall portion that maximize the capability of the bending resistance wall portion, And the torsion resistance ribs are separately provided on both sides of the bending resistance wall portion so as to stably cope with the twisting force, thereby providing a synthetic pipe having high durability and high reliability. have.

In order to achieve the above object, the present invention provides a synthetic resin pipe comprising: a spiral pipe member extending in a spiral direction and having a predetermined pitch and diameter; and a spiral pipe member bonded to the spiral pipe member in an extending direction thereof A synthetic resin pipe comprising a sealed junction, the spiral pipe member comprising: A hollow spiral casing having a square cross-sectional shape; A pair of bending resistance wall portions having a predetermined width and thickness and spaced apart from each other in parallel and spaced apart from each other in the radial direction of the synthetic resin pipe; And the bending resistance wall portion and the bending resistance wall portion are integrally formed on the inner wall surface of the spiral casing and integrally formed with the inner wall surface of the spiral casing, A reinforcing member including a first gap retaining portion for preventing the first gap retaining portion; And four torsion resistance ribs that connect the points where the bending resistance wall portion and the resistance wallpaper portion meet and the four corner portions of the spiral casing respectively to prevent eccentric movement of the reinforcing member in the spiral casing when the torsional force is externally applied .

A bending resistance wall portion is formed between the bending resistance wall portion and the inner wall surface of the spiral casing so as to prevent the bending resistance wall portion from being spaced apart from the first gap holding portion by an external force. And two spacing members are further integrally formed.

In addition, the first spacing portion has a certain thickness and width, and two pairs of the spacing portions form one pair.

The synthetic resin pipe according to the present invention as described above has a bending resistance wall portion that resists vertical load and a first gap maintaining portion and a resistance wall portion that maximize the ability of the bending resistance wall portion are provided at the same time, In addition, since the cross-sectional structure of the spiral tube member is symmetrical and the torsion resistance ribs are separately provided on both sides of the bending resistance wall portion, it can stably cope with the torsion force, thereby providing excellent durability and reliability.

1 is a partially cutaway perspective view of a synthetic resin pipe according to an embodiment of the present invention.
2 is a cross-sectional view for explaining the detailed structure of the synthetic resin pipe shown in FIG.
3 is a partial cross-sectional view showing another example of a synthetic resin pipe according to an embodiment of the present invention.
4 is a partial cross-sectional view showing another example of a synthetic resin pipe according to an embodiment of the present invention.

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

1 is a partially cutaway perspective view of a synthetic resin pipe 11 according to an embodiment of the present invention.

As shown in the figure, the synthetic resin pipe 11 according to the present embodiment includes a spiral tubular member 13 having a hollow square shape and extending spirally, and a spiral pipe member 13, And a joint portion 41 which is applied along the longitudinal direction of the member 13 and joins the adjacent helical tube members 13 in the longitudinal direction of the pipe 11 to each other.

The spiral pipe member 13 and the joint portion 41 are all made of polyethylene and the synthetic pipe 11 itself is manufactured in the same manner as the conventional method.

The spiral tubular member 13 is extruded through an extruder, spirally wound to have a predetermined pitch and diameter after passing through a cooling section. Through the above process, the joint portion 41 is applied between the helical tube members 13, which form the shape of the hollow pipe.

The joining portion 41 is extruded through a separate nozzle during the molding of the spiral tube member 13 and is cured while being coated on one side of the spiral tube member 13, do. The fluid flowing inside the synthetic resin pipe 11 does not leak to the outside of the pipe 11 due to the action of the joint portion 41. [

Such a synthetic resin pipe 11 may be defined as a radial direction being a first direction and a longitudinal direction being a second direction.

The spiral tube member 13 has a hollow spiral casing 13a having a square cross section and a reinforcing member 15 disposed at the center of the inner side of the spiral casing 13a, And a torsion resistance rib 17 connecting the inner wall surface of the spiral casing 13a.

The spiral casing 13a, the reinforcing member 15 and the torsion resistance ribs 17 are formed at the same time during the extrusion process of the spiral pipe member 13 to form an integral body.

Basically, when the load in the direction orthogonal to the longitudinal direction of the synthetic resin pipe 11, for example, the load in the direction of the arrow F is applied, the synthetic resin pipe 11 is pressed (cross section) . That is, the curvature of the circumference of the synthetic resin pipe 11 is maintained.

In other words, it acts to resist the bending force which increases or decreases the curvature of the circumference.

The inner structure of the helical tube member 13 will be described in detail with reference to FIG.

Fig. 2 is a cross-sectional view for explaining the detailed structure of the synthetic resin pipe 11 shown in Fig.

Referring to the drawings, it can be seen that a plurality of helical tube members 13 having a square cross-sectional shape are arranged side by side and spaced apart from each other and a joint portion 41 is interposed between the helical tube members 13. As described above, the joining portion 41 serves to bond the spiral tube members 13 to each other.

The spiral tubular member 13 includes a spiral casing 13 having the same aspect ratio and a hollow square tube shape and a spiral casing 13 which is located at the center of the spiral casing 13 and which is integral with the inner wall surface of the spiral casing 13 And a torsion resistance rib 17 connecting the reinforcing member 15 and the four corner portions (corner portions) of the spiral casing 13.

The four corners of the spiral casing 13 are rounded as shown by a rectangular tube having a predetermined thickness. By forming the corners of the spiral casing 13 in this manner, the contact area with the joining portion 41 is increased.

The reinforcing member 15 includes a pair of bending resistance wall portions 15a having a predetermined width and thickness and a pair of bending resistance wall portions 15b integrally formed at both ends in the width direction of the bending resistance wall portions 15a, And a first interval maintaining portion 15b connecting the central portion of the bending resistance wall portion 15a.

The bending resistance wall portion 15a serves to prevent the synthetic resin pipe 11 from being deformed due to the load in the direction of arrow F described with reference to FIG. The width direction of the bending resistance wall portion 15a is the same as the radial direction of the synthetic resin pipe 11, that is, the first direction.

That is, the imaginary plane including the bending resistance wall portion 15a is parallel or coincident with the plane perpendicular to the longitudinal direction of the synthetic resin pipe 11. The widthwise direction of the bending resistant wall portion 15a is formed as above to naturally maximize the moment of inertia of the bending resistant wall portion 15a.

The resistance wall portion 15c is a portion which is integrally fixed to the inner wall surface of the spiral casing 13 so as to extend to the side of the spiral casing 13 integrally connected to the ends of the bending resistance wall portions 15a, (13) and are fixed to the spiral casing (13a) in a state in which they are close to each other.

The resistor wallpaper portion 15c takes the form of a substantially V shape bent at both ends connected to the bending resistance wall portion 15a. The two resistor wallpaper portions 15c and the spiral casing 13a meet at one point at the same time. As a result, the pair of bending resistance portions 15a and the four resistive wallpaper portions 15c take the form of a hexagonal shape and have a hexagonal cross section shaped like a diamond.

The resistance wallpaper portion 15c supports the bending resistance wall portion 15a in the spiral casing 13a and maintains the bending resistance wall portion 15a at the initial position.

Also, a first interval maintaining portion 15b is provided between the bending resistance wall portions 15a. The first gap holding portion 15b is a portion that is integrally formed at the center portion of the bending resistance wall portion 15a at both ends in the width direction thereof and maintains the gap between the bending resistance wall portions 15a.

Even if the bending resistance wall portion 15a is subjected to a force in the direction of the arrow f2 due to a compressive force in the direction of the arrow f1, the bending resistance wall portion 15a is forcibly opened. The effect of the bending resistance wall portion 15a is doubled by the first gap retaining portion 15b.

On the other hand, the torsion resistance ribs 17 connect the reinforcing member 15 and the four corners of the spiral casing 13a. The torsion resistance ribs 17 are symmetrical with respect to the center of the spiral casing 13a.

One end in the width direction of each of the torsion resistance ribs 17 is integral with the point where the bending resistance wall portion 15a and the resistance wall portion 15c meet and the other end is fixed to the corner of the spiral casing 13a .

The imaginary planes including the one-side torsional resistance ribs 17 and the torsional resistance ribs 17 located diagonally opposite to each other with the reinforcing member 15 as a center are parallel to each other. In some cases, virtual planes may be made to coincide with each other.

The four imaginary planes comprising the four torsional resistance ribs 17 intersect on the central axis of the spiral casing 13a.

The torsion resistance rib 17 serves to prevent eccentric movement of the reinforcing member 15 in the spiral casing 13a when a twisting force is applied from the outside. Even if a force in the direction of the arrow f3 is applied to the spiral tube member 13, the bending resistance wall portion 15a is supported so as not to move in the direction of the arrow s.

If there is no torsion resistance rib 17, the reinforcing member 15 will not function properly, and the screw member 13 will be crushed by the force in the direction f3.

3 is a partial cross-sectional view of a spirally wound tubular member 13 for explaining another example of the synthetic resin pipe 11 according to an embodiment of the present invention.

Hereinafter, the same reference numerals as those of the above-mentioned reference numerals denote the same members having the same function.

Referring to the drawings, it can be seen that the second gap retaining portion 19 is further provided between the bending resistance wall portions 15a and the inward faces of the spiral casing 13a.

The second gap retaining portion 19 serves as a support for preventing the bending resistance wall portion 15a from being pushed out in the direction of arrow f2. That is, the bending resistance wall portions 15a are not moved away from each other due to external force.

When a tensile force is applied to the first spacing portion 15b, a compressive force is transmitted to the second spacing portion 19. The thickness T1 of the second gap retaining portion 19 should be sufficiently thick so that the second gap retaining portion 19 is not buckled even if a strong compressive force is exerted from the outside as a compressive force is applied to the second gap retaining portion 19 And should be at least thicker than the first interval holding portion 15b.

The first gap holding portion 15b may have a relatively thin thickness T2 than the second gap holding portion 19 because the first gap holding portion 15b has a tensile force.

4 is a partial cross-sectional view of a spiral tube member 13 shown to illustrate another example of the synthetic resin pipe 11 according to an embodiment of the present invention.

As shown in the drawing, two first interval holding portions 15b are applied between the bending resistant wall portions 15a. The first spacing portions 15b are parallel to each other and serve to hold the bending resistance wall portions 15a so as not to extend.

When a plurality of the first gap retaining portions 15b are applied in this way, the second gap retaining portions (19 in Fig. 3) may not be applied because the tensile force is sufficient.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

11: synthetic resin pipe 13: helical tube member
13a: spiral casing 15: reinforcing member
15a: bending resistance wall portion 15b:
15c: connection part 17: torsional resistance rib
19: receiving portion 41:

Claims (3)

A spiral tube member extending in a spiral direction and taking the form of a pipe; and a joint portion which is applied in an extending direction of the spiral tube member and which is sealed by bonding the spiral tube member, wherein the radial direction is a first direction Wherein the second direction is a second direction,
The spiral tubular member (13) comprises:
A hollow spiral casing 13a having a square cross-sectional shape;
A pair of bending resistance wall portions 15a located in the center of the inside of the spiral casing 13a and spaced apart from each other in a first direction in the width direction thereof and a pair of bending resistance wall portions 15b extending in the width direction of the bending resistance wall portions 15a Four resister wall portions 15c integrally formed at both ends and extending toward the inner wall surface side of the spiral casing 13a and integrally formed on the inner wall surface in a state that the two are gathered together, A reinforcing member 15 including a first gap holding portion 15b that prevents the bending resistance wall portion 15a from being spaced by an external force while the second direction is a width direction;
The point where the bending resistance wall portion 15a and the resistance wallpaper portion 15c meet and the four corners of the spiral casing 13a are connected to each other so that the reinforcing member 15. The synthetic resin pipe as claimed in claim 1, The method according to claim 1,
A bending resistance wall portion 15a is formed between the bending resistance wall portion 15a and the inner wall surface of the spiral casing 13a in order to prevent the bending resistance wall portion 15a from being spaced apart from the first gap holding portion 15b, And a second spacing portion (19) having a thickness that is relatively thicker than the first spacing portion (15b) in the width direction is integrally formed. The method according to claim 1,
The synthetic resin pipe according to claim 1, wherein the first space-maintaining portion (15b) comprises two first space-maintaining portions (15b) spaced apart from each other.
KR1020150098190A 2015-07-10 2015-07-10 Synthetic resin pipe KR101547967B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150098190A KR101547967B1 (en) 2015-07-10 2015-07-10 Synthetic resin pipe

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Application Number Priority Date Filing Date Title
KR1020150098190A KR101547967B1 (en) 2015-07-10 2015-07-10 Synthetic resin pipe

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KR101547967B1 true KR101547967B1 (en) 2015-08-28

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KR1020150098190A KR101547967B1 (en) 2015-07-10 2015-07-10 Synthetic resin pipe

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100926540B1 (en) 2009-08-06 2009-11-12 미래화학 주식회사 Strength improvement style duplex wall sewer of internal
KR101158278B1 (en) 2012-01-04 2012-06-19 대림프라스틱 주식회사 A resin pipe enhanced intensity
KR101425805B1 (en) 2013-03-06 2014-08-05 유옥수 Polyethylene pipes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100926540B1 (en) 2009-08-06 2009-11-12 미래화학 주식회사 Strength improvement style duplex wall sewer of internal
KR101158278B1 (en) 2012-01-04 2012-06-19 대림프라스틱 주식회사 A resin pipe enhanced intensity
KR101425805B1 (en) 2013-03-06 2014-08-05 유옥수 Polyethylene pipes

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