KR20120031728A - Sleeve connection structure - Google Patents

Sleeve connection structure Download PDF

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Publication number
KR20120031728A
KR20120031728A KR1020100093285A KR20100093285A KR20120031728A KR 20120031728 A KR20120031728 A KR 20120031728A KR 1020100093285 A KR1020100093285 A KR 1020100093285A KR 20100093285 A KR20100093285 A KR 20100093285A KR 20120031728 A KR20120031728 A KR 20120031728A
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KR
South Korea
Prior art keywords
screw
synthetic resin
sleeve
reverse
coupled
Prior art date
Application number
KR1020100093285A
Other languages
Korean (ko)
Inventor
김학건
Original Assignee
김학건
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 김학건 filed Critical 김학건
Priority to KR1020100093285A priority Critical patent/KR20120031728A/en
Publication of KR20120031728A publication Critical patent/KR20120031728A/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
    • F16L17/00—Joints with packing adapted to sealing by fluid pressure
    • F16L17/02—Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket
    • F16L17/03—Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket having annular axial lips
    • F16L17/032—Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket having annular axial lips the sealing rings having only one lip
    • 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
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/06—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end
    • F16L47/08—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end with sealing rings arranged between the outer surface of one pipe end and the inner surface of the sleeve or socket, the sealing rings being placed previously in the sleeve or socket
    • 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
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/06—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end
    • F16L47/12—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end with additional locking means
    • 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
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/16—Screw-threaded 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2/00—Friction-grip releasable fastenings
    • F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
    • F16B2/06—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action
    • F16B2/08—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action using bands

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)

Abstract

According to the present invention, one side of the synthetic resin tube is formed by processing an outer diameter to form a male screw portion, and the other side is formed by a female thread portion by processing an inner diameter. As the sleeve is rotated so that the synthetic resin screw tube is rotated to enter the inside of the sleeve relates to a double-sided coupling sleeve connecting structure for the synthetic resin screw tube coupled to maintain the watertight by the packing in the center.
The present invention is the reverse injection molding on the inner thread (11b) formed by processing the outer diameter at one end portion and formed by processing the inner diameter of the opposite end portion of the opposite male thread portion (10a). Synthetic resin screw pipes (10, 11) for screwing the male screw portions (11a) to connect a portion of the reverse male screw portions (11a) to protrude; A positive female thread portion 21 to which the positive male thread portion 10a of the synthetic resin screw tube 10 is coupled, and a positive female thread portion 21 to which the reverse male thread portion 11a of the synthetic resin screw tube 11 is coupled. A sleeve 20 for forming a reverse female threaded portion 22 on the opposite side of the counter and forming a ring groove 23 between the positive female threaded portion 21 and the reverse female threaded portion 22; The rubber ring 31 is integrally installed with the inner diameter of the plastic ring 30 inserted into the ring groove 23 so that the synthetic resin screw tubes 10 and 11 are horizontally coupled at both sides by the rotation of the sleeve 20. It is characterized by.

Description

Sleeve connection structure for synthetic screw thread

The present invention relates to a double-sided coupling sleeve connecting structure for a synthetic resin screw tube, and more particularly, one side of the synthetic resin tube is processed by the outer diameter to form a male thread portion and the other side to the inner diameter to form a female thread portion and then separately injected into the female screw portion Synthetic resin screw pipe is formed by joining the molded male threaded parts on both sides of the sleeve, and the synthetic screw screw is rotated to enter the inside of the sleeve as the synthetic screw screw is rotated so that the watertight is maintained by the central packing. A double-sided coupling sleeve connection structure.

In general, synthetic resin pipes widely used as sewage pipes are extruded from the extruder to form rectangular or circular profiles or profiles with various shapes for reinforcement inside the profiles, cooled in a cooler, and then supplied by a winder device. While the resin supplied from the auxiliary extruder was integrally connected to the profile and then cut in a cutting device to a certain length to be discharged to the discharge device.

In order to connect the synthetic resin tube produced as described above, there is a sheet fusion method of connecting sheets by fusion by heat generation by supplying power by winding sheets on both sides of the synthetic resin tube.

However, the sheet fusion method as described above has a disadvantage in that it is not moist or can work in water, power must be supplied, and it takes a lot of time such as various tools for fusion and time for melting and time for cooling and fixing. There is this.

In addition, a method of integrally injection molding a single color collar that can be connected to one side of a synthetic resin pipe and then connecting the bolt and nut and a rubber ring from the opposite side has been proposed.

However, this method requires time and equipment for molding single-handed collars on one side of the synthetic resin pipe, it is difficult to apply to large diameters, and bolts and nuts have to be tightened at equal intervals. .

Patent No. 0462009, filed by the applicant of the present application, forms a female screw by processing an inner diameter on one side and a male thread by processing an outer diameter on the opposite side, and then combines the female screw and a male screw with each other. .

However, the screwing process is easy, so the installation is good, but there is a drawback that many leaks occur in the screwed part after adjustment, and the screw part is fragile and can be easily damaged. There was a drawback of having to perform the connection work once again by winding the connection part with a sheet.

Document 1. Patent Registration No. 0787594 (Dec. 13, 2007 registration) Document 2. Patent Registration No. 0462011 (registered Dec. 07, 2004) Document 3. Patent Registration No. 0462009 (registered Dec. 07, 2004) Document 4. Patent Registration No. 0555963 (Registration No. 1006. 02. 21)

Therefore, the problem of the present invention, which is devised to solve the above-mentioned drawback, inserts a rubber ring integrally formed with a plastic ring in the center of the sleeve having both the positive and the reverse male parts formed on both sides, and the synthetic resin on both sides of the sleeve. As the sleeve is coupled to the screw to rotate the sleeve, the resin screw tube moves simultaneously from both sides so that the resin screw tube can be coupled to both sides of the rubber ring to prevent watertightness.

Another object of the present invention is to form a protrusion with the outer diameter of the sleeve to be able to move the synthetic resin screw tube at the same time in both directions at the same time, the synthetic resin screw tube to remove all the obstacles of the straight movement by the rotation conveniently It can be moved.

Another object of the present invention is to process the inner diameter forming the female thread on the opposite side of the male threaded portion of the synthetic resin screw pipe, and to separately join the injection-molded reverse male thread to the inner diameter female screw portion of the synthetic resin screw pipe to be coupled to the sleeve. To make it possible.

Another problem of the present invention is to ensure that the packing coupled to the outer diameter of the synthetic resin screw tube to be moved and coupled to the sleeve is terminated while the packing is coupled to the packing groove when the sleeve and the synthetic resin screw tube are coupled.

According to the present invention, a positive male thread is formed by processing an outer diameter at one end, and a reverse male thread is injection-molded to the internal male thread formed by machining an inner diameter of the opposite end of the positive male thread to protrude a portion of the reverse male thread. A synthetic resin screw tube connected to each other;

Forming a positive female thread portion to which the positive male thread portion of the synthetic screw thread is coupled, and forming a reverse female thread portion on the opposite side of the positive female thread portion to which the reverse male thread portion of the synthetic resin screw thread is coupled, and forming a ring groove between the positive female thread portion and the reverse female thread portion. A sleeve;

The rubber ring is integrally installed with the inner diameter of the plastic ring inserted into the ring groove, and the synthetic resin screw pipe is horizontally coupled at both sides by the rotation of the sleeve.

The present invention inserts a rubber ring integrally formed with a plastic ring in the center of the sleeve formed on both sides of the positive and reverse male thread, and the synthetic screw screw is rotated by rotating the sleeve by combining the synthetic resin screw pipe on both sides of the sleeve At the same time, both sides of the rubber ring move straight to the center rubber ring so that the resin screw tube can be easily combined to prevent watertightness.

The present invention is to form a protrusion by the outer diameter of the sleeve so that the resin screw tube can be conveniently rotated by using a tool so that it can be moved in both directions at the same time in the center direction, and the synthetic screw screw tube is an obstacle to the straight movement by rotation It is to remove all and move conveniently so that it can be combined stably.

The present invention is injection molding the sleeve, the plastic ring which is coupled to the center of the sleeve so that the sleeve is easily rotated without being caught in rotation, and securely coupled so that the watertight is maintained on both sides of the rubber ring at the end of the plastic screw tube It is.

The present invention is a watertight seal in the outer diameter of the synthetic resin screw tube so that the packing coupled to the outer diameter of the synthetic resin screw tube is moved to the straight by the rotation of the sleeve is coupled to the packing groove when the sleeve and the synthetic screw screw coupling To be maintained.

1 is an exploded perspective view of a synthetic resin screw tube of the present invention
Figure 2 is a cross-sectional view of the separated state of the synthetic resin screw tube and sleeve of the present invention
Figure 3 is a cross-sectional view of the bonded state of the synthetic resin screw tube and the sleeve of the present invention
4 is an enlarged cross-sectional view of main parts of the present invention;
5 is a cross-sectional view of the bonding state of the plastic ring and the rubber ring of the present invention
Figure 6 is a front view of the bonding state of the plastic ring and the rubber ring of the present invention
Figure 7 is a front view of the engaged state of the connecting rotary device to the sleeve of the present invention
8 is a side view of the engaged state of the connecting rotary device to the sleeve of the present invention;

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

1 is an exploded perspective view of a synthetic resin screw tube of the present invention, Figure 2 is a separated state sectional view of the synthetic resin screw tube and the sleeve of the present invention, Figure 3 is a cross-sectional view of the combined state of the synthetic resin screw tube and the sleeve of the present invention, Figure 4 shows an enlarged cross-sectional view of the main portion of the present invention.

The synthetic resin screw tubes 10 and 11 process the outer diameter of one end portion to form a positive male thread portion 10a on one side, and an inner diameter at the end portion on the opposite side of the positive male thread portion 10a of the synthetic resin screw tubes 10 and 11. To form an internal thread (11b), and injection molding the reverse male part (11a) so that the screw is projected to the outer diameter separately, and screwed connection to the internal thread (11b) to a part of the reverse male thread (11a) to the outside To protrude.

After coupling the reverse male threaded portion 11a to the inner diameter screw 11b, if necessary, the molten resin is supplied from the outer diameter of the connecting portion in the circumferential direction to be welded and fixed so as to be integrally installed so that a part of the reverse male threaded portion 11a protrudes. It is possible to do

The outer diameters of the synthetic resin screw tubes 10 and 11 form packing fixing grooves 12 and 13 to couple the packings 14 and 15 to the packing grooves 27 and 28, respectively, when combined.

The sleeve 20, to which the synthetic resin screw tubes 10 and 11 are coupled, processes an inner diameter to form a positive female screw portion 21 and a reverse female screw portion 22.

The sleeve 20 in which the positive female screw portion 21 and the reverse female screw portion 22 are formed allows the ring groove 23 to be formed at the center thereof.

Injection molding such that the forward female threaded portion 21 and the reverse female threaded portion 22 face each other on the both sides of the ring groove 23, or injection molding the same shape based on the ring groove 23 and then butt welding. It connects to shape the sleeve 20.

The outer side of the positive female threaded portion 21 and the reverse female threaded portion 22 protrudes at regular intervals to form packing grooves 27 and 28, and packings 14 and 15 are coupled to the packing grooves 27 and 28. It is to combine so that the watertightness is maintained at the outer diameter of the synthetic resin screw pipe (10, 11).

The positive female threaded portion 21 is coupled to the positive male screw portion 10a of the synthetic resin screw tube 10, and the reverse female threaded portion 22 is to be coupled to the reverse male screw portion 11a of the synthetic resin screw tube 11.

The plastic ring 30 is coupled to the ring groove 23 formed at the center of the sleeve 20, and the rubber ring 31 is integrally injection molded to the inner diameter of the plastic ring 30.

Figure 5 is a cross-sectional view of the coupling state of the plastic ring and the rubber ring of the present invention, Figure 6 shows a front view of the coupling state of the plastic ring and the rubber ring of the present invention.

The plastic ring 30 is coupled to the ring groove 23 formed at the center of the sleeve 20, and the coating protrusion 32 protrudes from the inner diameter of the plastic ring 30 to form a hole in the coating protrusion 32 at predetermined intervals. (33) is formed so as to be integral with the rubber ring 31, and the projections 34 are formed on both sides of the plastic ring 30 at regular intervals.

The rubber ring 31 coupled to the inner diameter of the plastic ring 30 is preferably injection molded to be integrated through the hole 33 of the coating protrusion 32.

Figure 7 is a front view of the engaged state of the connection rotary device to the sleeve of the present invention, Figure 8 shows a coupled state side view of the connection rotary device to the sleeve of the present invention.

The outer diameter of the sleeve 20 is to form a protrusion 24 at regular intervals so that the sleeve 20 can be rotated in either direction.

The outer diameter of the protrusion 24 of the sleeve 20 is coupled to the protrusion 24 formed in the inner diameter, and installs a ratchet 41 and a fixing ring 42 which transmit rotational force in one direction and rotate in the opposite direction. One part is to install the connector rotary device 40 that the handle 43 is installed.

According to the present invention having the above configuration, the synthetic resin screw tubes 10 and 11 are extruded and supplied to the winder after extruding the rectangular or cross-shaped profile to one side of the synthetic screw tubes 10 and 11. Machining the outer diameter at the end to form the right male screw portion 10a, and on the opposite side of the right male screw portion 10a to process the inner diameter at the end to form the inner screw 11b, and then to the reverse male portion 11a. By injection molding, the reverse male screw portion 11a is screwed to the inner diameter screw 11b at the ends of the synthetic resin screw tubes 10 and 11 to fix a portion of the reverse male screw portion 11a to protrude.

The end of the synthetic resin screw pipe (10, 11) coupled to the reverse male screw portion (11a) and the inner diameter screw (11b) is preferably fixed to be integrated by fusion by supplying molten resin to the outer diameter.

The synthetic resin screw tubes 10, 11 formed with both the positive male thread portion 10a and the reverse male thread portion 11a on both sides supply a sleeve 20 between the synthetic resin screw tubes 10, 11 when embedded in the ground. will be.

The sleeve 20 has a forward female threaded portion 21 and a reverse female threaded portion 22 by injection molding, and forms a ring groove 23 at the center facing each other and is injected at a time so that the packing grooves 27 and 28 are formed. Molding or injection molding so as to be bisected based on the ring groove 23, and then molded to be an integral type by welding or fusion.

The sleeve 20 is connected to the ring groove 23 while the plastic ring 30 is inserted into the ring groove 23 before the sleeve 20 is formed at both ends of the female thread part 21 and the reverse female thread part 22. It is.

The plastic ring 30 is injection molded so that the rubber ring 31 is integrated through the hole 933 of the coating protrusion 32 with an inner diameter.

On both sides of the sleeve 20, the positive male thread portion 10a of the synthetic resin pipes 10 and 11 is in contact with the positive female thread portion 21 and the reverse male thread portion 11a is in contact with the reverse female thread portion 22. Combining the connector rotary device 40 to the central outer diameter of 20) to rotate the handle 43 in one direction is coupled to the protruding portion 24 at the outer diameter of the sleeve 20, the ratchet 41 and the retaining ring 42 When rotated in one direction with the sleeve 20, and rotated in the opposite direction, the sleeve 20 is intact, while the handle 43 and the ratchet 41 are repeatedly performed to rotate together the sleeve 20 ) Can be rotated in one direction.

When the sleeve 20 is rotated through the connector rotating device 40, the positive male portion 10a is coupled to the positive female screw portion 21, and the reverse male portion 11a is coupled to the reverse female screw portion 22. At the same time, as the sleeve 20 rotates, the synthetic resin screw tubes 10 and 11 move horizontally toward the center of the sleeve 20.

As the sleeve 20 rotates, the synthetic resin screw tubes 10 and 11 move horizontally toward the ring groove 23, which is the center of the sleeve 20. When the sleeve 20 rotates, the synthetic resin screw tubes 10 and 11 are coupled to the ring groove 23. The plastic ring 30 does not rotate by sliding and remains as it is.

When the synthetic resin screw tubes 10 and 11 reach the outer side of the rubber ring 31 of the ring groove 23, the ends of the right male thread portion 10a and the reverse male thread portion 11a are closely attached to both sides of the rubber ring 31. While combining to maintain watertightness.

The rubber ring 31 is in close contact with the ends of the right male thread portion (10a) and the reverse male thread portion (11a) of the synthetic resin screw tube (10, 11) on both sides to prevent water leakage while maintaining a stable watertight It is.

At the same time, the packing (14, 15) coupled to the packing fixing grooves (12, 13) of the synthetic resin threaded pipe (10, 11) is a synthetic resin threaded pipe (10, 11) both sides of the rubber ring 31 at the inner diameter of the sleeve (20) Is coupled to the end of the connection work at the same time coupled to the packing grooves (27, 28) of the sleeve 20 will be able to maintain the watertight in both the outer diameter and the portion where the synthetic resin screw tubes (10, 11) meet.

The positive female screw portion 21 and the reverse female screw portion 22 formed on the sleeve 20 are formed so that the screw thread is about 1 to 2.5 turns, thereby forming the synthetic resin screw tubes 10 and 11 with little rotation of the sleeve 20. It is possible to bury it underground to move straight and prevent leakage.

As described above, the present invention reduces the working time by a quick connection and provides an advantage that anyone can work quickly and easily. Although not shown, the present invention can be implemented by those skilled in the art. It is self-evident.

The present invention forms a male screw portion at one end of the synthetic resin screw pipe, and on the other side to form an internal thread with an inner diameter, the inner screw is injection molded by forming a reverse male screw portion to the inner diameter screw to form a part of the reverse male screw projecting Then, by forming a ring groove in the center of the sleeve forming the internal threaded portion of the male threaded portion to the inner diameter and inserting the plastic ring and the rubber ring, the synthetic resin screw tube is horizontally moved by the rotation of the sleeve to be coupled to the sleeve and watertight on both sides of the rubber ring. It is possible to connect the resin screw tube quickly and conveniently to maintain this.

10, 11: synthetic resin screw tube 10a: positive male thread
11a: reverse male thread 11b: internal thread
12, 13: packing fixing groove 14, 15: packing
20: sleeve 21: positive female thread
22: reverse female thread 23: ring groove
24: protrusions 27, 28: packing groove
28: packing 30: plastic ring
31: rubber ring 32: uneven connection
33: watertight projection 40: connector rotation device
41: ratchet 42: retaining ring 43; handle

Claims (5)

Reverse male thread portion 11a injection molded into inner threaded portion 11b formed by processing an outer diameter at one end thereof and formed by processing an inner diameter of the opposite end portion of the right male threaded portion 10a. ) And synthetic resin screw pipes (10, 11) for connecting a part of the reverse male screw portion (11a) to protrude by screw type;
A positive female thread portion 21 to which the positive male thread portion 10a of the synthetic resin screw tube 10 is coupled, and a positive female thread portion 21 to which the reverse male thread portion 11a of the synthetic resin screw tube 11 is coupled. A sleeve 20 for forming a reverse female threaded portion 22 on the opposite side of the counter and forming a ring groove 23 between the positive female threaded portion 21 and the reverse female threaded portion 22;
The rubber ring 31 is integrally installed with the inner diameter of the plastic ring 30 inserted into the ring groove 23 so that the synthetic resin screw tubes 10 and 11 are horizontally coupled at both sides by the rotation of the sleeve 20. Double-sided coupling sleeve connection structure for synthetic screw thread.
The method of claim 1,
The sleeve 20 is provided with packing grooves 27 and 28 on both sides of the inner diameter, and is integrally welded to each other in the ring groove 23 between the positive female screw portion 21 and the reverse female screw portion 22. Double-sided coupling sleeve connection structure for synthetic screw thread.
The method of claim 1,
The plastic ring 30 coupled to the ring groove 23 of the sleeve 20 passes through a plurality of holes 33 formed in the coating protrusion 32 with an inner diameter, so that the rubber ring 31 is integrally injection molded. Double-sided coupling sleeve connection structure for synthetic screw thread.
The method of claim 1,
The synthetic resin screw tubes 10 and 11 are screwed with the reverse male screw portion 11a which is injection molded into the inner screw 11b formed at the inner diameter at the opposite end of the opposite male screw portion 10a. 11a) to protrude a part, and a double-sided coupling type sleeve connecting structure for synthetic resin screw pipe, characterized in that the welded by winding the molten resin to the part connecting the reverse male screw portion (11a) and the inner diameter screw (11b).
The method of claim 1,
The synthetic resin screw tubes 10 and 11 form packing fixing grooves 12 and 13 with outer diameters to join the packings 14 and 15, and when the synthetic resin screw tubes 10 and 11 are coupled to the sleeve 20, they are packed. A double-sided coupling type sleeve connecting structure for a synthetic resin screw tube, characterized in that the packing (14, 15) is located in the groove (27, 28) is coupled to maintain the watertight at the outer diameter of the synthetic resin screw tube (10, 11).
KR1020100093285A 2010-09-27 2010-09-27 Sleeve connection structure KR20120031728A (en)

Priority Applications (1)

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KR1020100093285A KR20120031728A (en) 2010-09-27 2010-09-27 Sleeve connection structure

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Application Number Priority Date Filing Date Title
KR1020100093285A KR20120031728A (en) 2010-09-27 2010-09-27 Sleeve connection structure

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KR20120031728A true KR20120031728A (en) 2012-04-04

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KR1020100093285A KR20120031728A (en) 2010-09-27 2010-09-27 Sleeve connection structure

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110360402A (en) * 2019-07-26 2019-10-22 袁洪金 A kind of polypropylene anti-corrosion pipe fitting

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110360402A (en) * 2019-07-26 2019-10-22 袁洪金 A kind of polypropylene anti-corrosion pipe fitting

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