WO2016085146A1

WO2016085146A1 - Synthetic resin pipe joining device having dual stopper

Info

Publication number: WO2016085146A1
Application number: PCT/KR2015/011829
Authority: WO
Inventors: 신진욱
Original assignee: 신진욱
Priority date: 2014-11-27
Filing date: 2015-11-05
Publication date: 2016-06-02
Also published as: KR101552107B1

Abstract

The present invention forms a pipe-expanding part and a reinforcement layer on an outer pipe of a synthetic resin pipe joining device, and comprises a packing part which seals the outer pipe and an inner pipe so that material flowing through the inside of a pipe does not leak; a first stopper which is attached to the outer pipe and the inner pipe by an adhesive which prevents the inner pipe inserted into the inner circumference of the outer pipe from being separated; and a second stopper which is formed in a coupling groove of the inner pipe. Accordingly, the present invention provides effects of preventing the separation of the pipes since the inserted pipe further improves the coupling force; reinforcing the strength of the pipe-expanding part; and preventing bacteria infiltration from the outside and bacteria propagation inside the pipe through a synthetic resin pipe connecting region, and the breakage of the synthetic resin pipe caused by joint fluctuation.

Description

Synthetic Resin Pipe Fittings with Double Stoppers

The present invention relates to a connecting joint device of a synthetic resin pipe, the inner tube of the synthetic resin pipe is inserted into the inside of the expansion pipe expansion portion, the inner circumference of the outer appearance of the synthetic resin pipe expansion portion and the outer circumference of the inner pipe of the synthetic resin pipe tightly by packing A device for connecting, in order to prevent separation of these connecting portions, the first stopper is coupled to the inner circumference of the outer appearance of the synthetic resin tube expansion portion, and the second stopper coupling groove is formed on the outer circumference of the inner tube of the synthetic resin tube. The present invention relates to a synthetic resin pipe joint device for coupling a second stopper coupled to the stopper to a coupling groove to prevent separation of the connection site by the coupling thereof.

Synthetic resin pipes are used for various purposes such as water and sewage pipes, agricultural and industrial water pipes, and various devices and methods for connecting synthetic resin pipes are well known in the art, and generally have separate joint pipes or single-hand pipes. The method of connecting the pipes in the form of a pipe is adopted at the construction site.

Such synthetic resin pipe fittings are usually provided with packing and coupling means in order to prevent leakage and separation of the connecting portion.

The present inventors have registered a Patent Application No. 10-1197111 (Registration Date 2012. 10. 29.) 'Utility about the anti-bacterial packing and the stopper is provided with a synthetic resin pipe joint' and the joint for connecting the synthetic resin pipe formed integrally with the packing portion and the stopper Patent Registration No. 20-0461998 has been registered, and Utility Model Registration Application No. 2013-0002336 relating to a synthetic resin pipe fitting equipped with a plurality of packings is currently pending.

According to the inventor's registered patent and utility model and application of the present invention, it prevents contamination of bacteria or bacteria caused by long use in gaps or drainage pipes at the connection part, and fluctuation of the connection synthetic resin pipe due to external impact or ground shaking This could prevent the contact area from being worn or the surface of the synthetic resin pipe caused by the hard stopper, and the constant inside of the pipe penetrated into the connection area, thus preventing the contamination of the contact area for long periods of time. Some problems existed.

In addition, Korean Patent No. 10-1029344 has a stopper 30 is inserted into the separation prevention groove 24 to protrude more inclined; The connector of the water and sewage pipe is formed on the pipe 11 and the stopper 30 is coupled to form a locking jaw 19 to prevent the separation (see Fig. 1).

The patent has a function to improve the bonding force by the stopper is supported by the locking jaw to prevent the separation of the connection pipe, but the locking jaw is formed in the single-layer pipe, there is a fear that the support force is insufficient to separate the strong pressure, stopper When molded into rubber, the metal ring 32 having a "┗" or "∠" shape inside is a complicated structure to be integrally injection molded, and it is difficult to join with the elastic member of the metal ring and the stopper There is a problem of leaving the separation prevention groove (24).

[Preceding technical literature]

(Patent Document 1) Document 1. Patent Registration No. 1029344 (2011. 04. 07. Registration)

(Patent Document 2) Document 2. Patent Registration No. 1197111 (October 29, 2012 registration)

(Patent Document 3) Document 3. Utility Model Registration No. 20-0461998 (Aug. 13, 2012)

(Patent Document 4) Document 4. Utility Model Registration Application No. 2013-0002336 (filed Mar. 28, 2013)

The present invention is to solve the problems of the prior art, it is to provide a synthetic resin pipe joint device to prevent separation by firmly preventing the breakage and coupling of the stopper portion of the synthetic resin connecting device.

In addition, it is an additional purpose to prevent the separation of the packing or stopper when connecting the synthetic resin pipe.

The present invention is to solve the problems of Utility Model Registration Application No. 2013-0002336 (see Fig. 2) and Patent Registration No. 10-1029344, which is the first application of the present inventors, the metal stopper (50) of Utility Model Registration Application No. 2013-0002336 ) Is replaced with the first packing stoppers 51 and 51 'made of rubber, and the second packing stoppers 52 and 52' formed in the joining grooves on the outer circumference of the inner tube are joined to strengthen the bond of the synthetic resin pipe.

In addition, the above-mentioned rubber stopper uses antimicrobial rubber and improves the cohesion force by forming the engaging projection in the shape of a reverse saw blade, and the rubber stopper is adhered to the exterior and the inner tube with an adhesive (adhesive layer: 70). In the bonding operation of the synthetic resin pipe, the second stopper is prevented from being separated from the coupling groove 60 by the coupling pressure.

By combining the outer surface of the coupling portion according to the present invention and the packing stopper of rubber material installed in the inner tube, it is possible to prevent breakage of the outer circumference of the inner tube of the synthetic resin pipe by the metal stopper, and the stopper of the rubber product is coated with the adhesive. By strongly adhering to the inner tube and preventing separation, it is possible to prevent the stopper from being separated from the groove during the joint operation of the tube, and the effect of the packing to prevent leakage as well as the stopper.

The present invention is based on the inner periphery of the outer appearance 10 of the synthetic resin pipe joint portion 10 having an expansion part 1 and the reinforcement part 40 as described in the line utility model registration application 20-2013-0002336 of FIG. Synthetic resin pipe joint portion of the inner pipe (10a) in close contact with the outer pipe, the synthetic resin pipe joint device is connected to the inner pipe, located on the inner circumference of the exterior, when the inner tube is inserted into the interior of the exterior, The inner periphery of the inner tube and the outer periphery of the inner tube is sealed in close contact, the antimicrobial packing portion 20 of the double-layer structure to prevent the material flowing through the synthetic resin tube is configured, the synthetic resin tube, the synthetic resin tube Hard high tensile hard layer to withstand the pressure generated therein; Hard impact resistant hard layer to withstand the impact occurring outside the synthetic resin tube; And a structure forming a second stopper at a position of the first stopper of the external appearance of the synthetic resin tube and the inner side of the synthetic resin tube opposite to the synthetic resin tube in a multi-layered configuration including an impact resistant antimicrobial layer to prevent bacterial growth inside the synthetic resin tube. will be.

The composition of the synthetic resin pipe and the antimicrobial packing used in the synthetic resin pipe joint apparatus to which the present invention is applied is as described in the Utility Model Registration Application No. 20-2013-0002336, and also in the case of transporting a material without concern of contamination. Ordinary packing can also be used.

In addition, two or more packings may be installed and used depending on the length of the joint portion of the synthetic resin pipe. In this case, the rubber stopper may be formed in plural numbers depending on the number of packings.

Synthetic resin pipe joint device is formed by double packing and coupling stopper according to the present invention,

First, it is possible to connect the synthetic resin pipes simply by inserting the inner tube of the synthetic resin pipe into the exterior of the expansion part of the synthetic resin pipe fitting device, thereby reducing the construction cost by improving the work efficiency.

Second, since the inserted tube is not arbitrarily separated even after connecting the tube, it provides a synthetic resin pipe fitting device having a rigid connection without flow.

Third, as a composite pipe fitting device having a multi-layer pipe structure, it has an effect of providing a synthetic pipe fitting device that is more resistant to internal pressure, external pressure, and impact than a single-layer pipe fitting having the same thickness.

Fourth, due to the antimicrobial packing and the antimicrobial layer of the stopper and tube, it prevents bacteria from penetrating and propagating from inside and outside, and has the effect of providing an antimicrobial synthetic resin pipe fitting device in which the material flowing inside the pipe is not contaminated by bacteria. ,

Fifth, by using the same rubber material for the packing and the stopper, no fluid flows into the connection part, so there is a complete pollution prevention effect. The packing and the stopper are formed of the same material at both ends of the connection part, so there is no flow even from external impact. , The bonding force is improved, and there is an effect of preventing the wear and damage of the coupling part,

In addition, the present invention is that the combination of the synthetic resin tube is more robust by the dual configuration to the antimicrobial binding stopper made of rubber material, also has the effect of preventing the leakage and leakage prevention without the installation of a separate packing, additional coupling means is required There is an effect that can provide a cost-effective synthetic resin connection device.

1 is a side cross-sectional view of Korean Patent No. 10-1029344.

Figure 2 shows a side cross-sectional view of a synthetic resin pipe joint device with a stopper of Utility Model Registration Application No. 20-2013-0002336.

Figure 3 is a side cross-sectional view of the packing and the first stopper formed on the outer appearance of the coupling portion of the synthetic resin pipe fittings according to an embodiment of the present invention.

Figure 4 is a partially enlarged side cross-sectional view showing that the second stopper is fixed to the inner tube stopper coupling groove of the synthetic resin pipe joint according to an embodiment of the present invention.

Figure 5 is a partially enlarged side cross-sectional view of the first stopper and the second stopper of the inner tube of the synthetic resin pipe joint according to an embodiment of the present invention is combined.

6 and 7 are partially enlarged side cross-sectional views showing another embodiment of the present invention.

Hereinafter, with reference to the drawings, it will be described in detail the synthetic resin pipe fittings provided with the first, second, packing stopper according to the present invention.

This invention is based on the structure of the said application which improved the structure of utility model registration application 20-2013-0002336.

As shown in FIGS. 3, 4, and 5, in the present invention, the packing 20 and the first packing stopper 51 are formed in the expansion pipe 1 having the reinforcement part 40 and the appearance 10 of the triple pipe structure. The inner tube 10a has a structure in which a second packing stopper 52 is formed in the stopper engaging groove 60.

The packing 20 may use an antimicrobial packing consisting of an antimicrobial ring 21 and a pressure-resistant ring 22, as described in the prior art. , 2 packing stoppers (51, 52) are formed with coupling protrusions (53, 54) can be used antibacterial rubber products, the packing and the stopper may be installed in one or more plural according to the size or use of the connection pipe. .

The second stopper coupling groove 60 is formed in a circular shape along the circumference of the exterior at an opposite position of the first stopper installed in the exterior pipe to be inserted into the interior of the exterior of the synthetic resin pipe coupling device, and the angle of the inner surface of the groove. Is preferably formed at an acute angle.

If it constitutes more than a right angle, the coupling force may fall or the 2nd stopper may detach | deviate by strong pressure, Therefore, the acute angle of 45 degrees or more is the most preferable.

In addition, the coupling protrusions of the first and second stoppers are formed at the acute angle as described above.

The shape of the second stopper coupling groove 60 can be modified according to the shape of the second stopper such as a rectangular shape, a trapezoid or a triangle, and the first stopper at the time of engagement by deepening the insertion direction and having an oblique inclination in the opposite direction. It is preferable that it is easily combined with and does not exceed 1/4 of the thickness of the inner pipe of the synthetic resin pipe. Outside the above range, the thickness of the pipe in the coupling groove portion may be reduced, which may affect the strength of the pipe, and the depth of the coupling groove may be greater than the coupling force of the second stopper when the depth of the coupling groove is about 2 mm or more within the limit not exceeding this range. It does not affect.

The coupling groove may be formed by cutting the manufactured synthetic resin tube in a circular shape or by heat compression. Such processing may be easily selected and applied by those skilled in the art according to the material of the tube. Can be.

In addition, the packing 20 or the first and second packing stoppers may be prevented from being separated from the coupling grooves by adhering by the adhesive when the packing 20 or the first and second packing stoppers are bonded to the outer tube and the inner tube.

Since the stopper may be separated from the groove due to excessive pressure when the synthetic resin tube is coupled, the adhesive and the stopper may be adhered to the inner tube and the exterior by an adhesive to prevent the error caused by this process.

And the synthetic resin pipe forming the connection device of the present invention is preferably to use a high-strength pipe of the triple-pipe structure, if the use of a general single pipe, there is a risk of damage due to weakened strength due to the formation of the coupling groove, in the present invention A triple pipe is used as in the Utility Model Registration Application No. 20-2013-0002336.

6 and 7 show another embodiment in which the coupling protrusions 54 of the first and second packing stoppers 51 'and 52' of the synthetic resin pipe fitting are formed in duplicate.

In the present invention, the sawtooth coupling protrusions may be formed in multiple, 1 to 3 is most preferred. In the case of three or more, the portion occupied by the joining portion becomes wider, which is uneconomical and the strength of the joining portion may be reduced.

The first and second packing stoppers are formed of an elastic rubber product, which is contracted when the inner tube is inserted into the synthetic resin pipe fitting part, and is firmly coupled while being expanded at the coupling part, and the stopper has a depth of the stopper coupling groove 60. It is desirable to have about 10% or more expanded elasticity.

Synthetic rubber, natural rubber, silicone resin, etc. may be used as the material of the first and second packing stoppers, and the antimicrobial properties may be imparted to these materials, and the rubber hardness may be adjusted according to the use or size of the synthetic resin tube. .

Although specific embodiments have been described above, the

stoppers

51 and 52 made of rubber may be used alone for small diameter pipes, and various modifications may be made depending on the configuration of the packing or stopper and the use of the synthetic resin pipe. It is included in the scope of protection of the present invention.

Referring to the coupling method of the present invention in detail, as shown in Figs. 3, 4 and 5, the coupling groove in the outer appearance 10 of the expansion portion 1, the packing 20 and the first stopper 51 is installed When the inner tube 10a in which the second stopper is formed is inserted into the 60, the packing and the

coupling protrusions

53 and 54 of the first and second stoppers are compressed, and the coupling is made to the coupling protrusion grooves of the first and second stoppers. When the position is reached, the engaging projections of the first and second stoppers expand and settle in the engaging projection grooves.

At this time, in order to facilitate bonding, vegetable oil or the like may be applied to the inner tube and the outer surface and the surface of the stopper.

By such a configuration, the bonding force of the synthetic resin pipe is improved to prevent the separation of the synthetic resin pipe.

The antimicrobial packing 20 is a component that seals the synthetic resin tube exterior 10 and the inner tube 10a of the inserted tube, and may use a soft material such as synthetic rubber, natural rubber, or silicone resin, but is not limited thereto. no.

The antimicrobial packing 20 and the stopper serve as a component that prevents bacteria from inside and outside of the pipe from penetrating and propagating and the flow of the joint through the close contact portion of the plastic pipe fitting 10 and the inner pipe 10a. .

Synthetic resin pipe fittings provided with the first and second stoppers according to the present invention may be implemented in various synthetic resin fittings such as a single type, a positive type, a straight tube and a straight line, a tee, and an elbow as shown in the drawing.

In the case of using a straight pipe, a second stopper is formed at a coupling groove at both ends of the straight pipe, and connected using a straight pipe, a tee, an elbow or the like of the present invention.

Synthetic resin tube used in the present invention is a high tensile hard layer 12 of Sun Utility Model Registration Application No. 20-2013-0002336 as described in FIG. 2; Impact resistant hard layer 11; And a triple layer or more including an impact resistant antibacterial layer 13.

In addition, the reinforcing layer 40 also includes a second high tensile hard layer 42; Second impact resistant hard layer 41; And it is characterized in that the triple layer or more comprising a second impact resistant antibacterial layer (43).

High tensile hard layer 12 should have a property that can withstand the pressure generated inside the pipe, it is preferably made of a hard synthetic resin.

Impact-resistant hard layer 11 should be provided with a property to withstand the impact generated outside the tube, it is preferably made of a hard synthetic resin. However, like the high tensile hard layer 12 is preferably made of a hard nature.

Examples of the reinforcing agent included in the impact resistant hard layer 11 may include CPE-based reinforcing agents and MBS-based impact reinforcing agents, and specific manufacturing and production methods of the high tensile hard layer 12 and the impact resistant hard layer 11 may include those of the present inventors. Since it is disclosed in a pre-registered patent (registration number: 10-0338254), a detailed description thereof is omitted.

The impact resistant antimicrobial layer 13 is a component that prevents bacterial propagation of water flowing through the tube, and the impact resistant antimicrobial layer 13 is preferably a resin composition containing a zeolite-based inorganic antimicrobial agent or a resin composition containing silver nanoparticles. . Impact-resistant hard antimicrobial layer 13 contains the inorganic antimicrobial agent or silver nanoparticles to prevent the growth and penetration of bacteria and the generation of scale with the antibacterial effect.

Synthetic resin pipe fittings provided with the first and second stoppers according to the present invention may be modified in various ways and have various embodiments. Specific embodiments are illustrated in the drawings and described in detail in the detailed description.

However, this is not intended to limit the present invention to a specific embodiment, it should be understood to include all changes, equivalents, and substitutes included in the technical spirit and technical scope of the present invention.

That is, the synthetic resin pipe joint device of the present invention can be used in various synthetic resin pipe joint devices, such as straight, elbow or T-shaped, as well as single-handed pipe.

[Description of the code]

1: expansion tube

10: seam appearance

10a: joint inner tube

11: impact hard layer

12: high tensile hard layer

13: impact resistant antibacterial layer

20, 20 ': antimicrobial packing

21, 21 ': antibacterial ring

22, 22 ': Pressure resistant ring

40: reinforcement

41: second impact hard layer

42: second high tensile hard layer

43: second impact hard antimicrobial layer

50: stopper

51: first stopper

52: second stopper

53: first stopper engaging protrusion

54: second stopper engaging projection

60: second stopper engaging groove

70: adhesive layer

Claims

Insert the inner pipe of the synthetic resin pipe into the inside of the expansion pipe of the synthetic resin pipe fitting device, and close the inner circumference of the outer surface and the outer circumference of the inner pipe with packing to expand the triple structure connecting the outer pipe and the inner pipe of the expansion pipe. In a synthetic resin pipe joint having a pipe portion and a reinforcing layer,

The first stopper 50 is provided on the inner circumference of the appearance,

In the inner tube, a second stopper 51 is formed in the engaging groove 60 at a position opposite to the first stopper.

The first and second stoppers are adhesively attached to the coupling grooves of the outer and inner tubes,

Synthetic resin pipe joint device characterized in that the inner inclination angle of the second stopper coupling groove and the engaging projections (53, 54) of the first and second stoppers are formed at an acute angle of 45 degrees or more.
The method of claim 1,

Synthetic resin pipe joint device characterized in that the plurality of first and second stoppers.