KR100721594B1 - Triple jointing pipe for prevention of noise - Google Patents

Abstract

The present invention relates to a triple joint pipe for noise prevention, and more particularly, a noise attenuating tube formed of two layers of soft synthetic resin is inserted into an outer tube formed of a hard synthetic resin material, and a noise attenuating tube is installed in the outer tube. When installed inside, the space is inserted between the outer circumference of the noise damping tube and the inner circumferential surface of the outer tube, and the insertion part is inserted. The end insertion start portion of the noise attenuation tube is fitted into the locking jaw inside the outer tube, and the other end is sealed by a sealing ring. In order to minimize the noise in the joint pipe and to improve the sealing force at the part to which the drain pipe is connected, a double packing is formed in the drain pipe connecting part which is fixed and the drain pipe outside the sealing ring is inclined inwardly. It is for.

According to the present invention, a drain pipe connecting portion 14 having a screw portion 12 and a flange portion 13 is formed on one side of the outer tube body 11 formed of a hard synthetic resin material, and the other side of the outer tube body 11 is formed. The outer soft tube 22 and the inner portion forming the outer space portion 17 and the space portion 23 inside the outer tube 10 formed with the connecting tube portion 15 having a smaller inner diameter than the outer tube body 11. Noise attenuation pipe 20 made of a soft pipe 21 is inserted, the drain pipe connecting portion 14, the sealing ring 30 for fixing the noise attenuation pipe 20, and the drain pipe and the outer pipe is to be tightly coupled 1 The vehicle packing 41, the support ring 50, and the secondary packing 42 are inserted and installed one by one, and the fastening nut 60 is screwed into the threaded portion of the outer tube. The inner side of the (11) is formed so that the locking projections 16 of the same size as the connecting pipe portion 15 is projected inward, the inner soft pipe 21 and the outer soft of the noise reduction tube 20. The insertion start portion of the 22 is integrally connected, and a locking groove 24 is formed at the inner circumference of the tip insertion start portion to be fitted to the locking jaw 16 of the outer tube 10, and the outer soft tube 22 is formed. Between the outer surface of the inner tube and the inner circumferential surface of the outer tube body 11 is formed a plurality of protrusions (25) protruding to form the outer space portion 17, the sealing ring 30 is the outer tube (10) A drain pipe catching portion 32 is formed inwardly at the inner circumference of the insertion start portion side of the ring-shaped body 31 inserted into the drain pipe connecting portion 14 of the inner and outer soft pipes 21 ( 22 is inserted into the open inlet of the space portion 23 formed between the blocking projection frame 33 is formed so as to protrude, the outer peripheral surface of the ring-shaped body 31 is in contact with the inner peripheral surface of the drain pipe connecting portion 14 A plurality of ribs 34 protruding from the outer surface of the ring-shaped body 31 and the inner circumferential surface of the drain pipe connecting portion 14 to form the third space portion 35. Is formed, characterized in that the sealing blade 43 is inclined inwardly formed on the inner circumference of the primary, secondary packing (41, 42).

Joint pipe, triple pipe, space part, noise reduction pipe, external pipe, packing, packing support ring, sealing ring, soft pipe, tightening nut, noise

Description

Triple jointing pipe for prevention of noise}

1 is a cross-sectional view showing a triple joint pipe for noise prevention in accordance with the present invention.

FIG. 2 is an enlarged partial cross-sectional view of part “A” of FIG. 1;

3 is a cross-sectional view taken along the line B-B in FIG.

4 is a cross-sectional view taken along the line C-C of FIG.

Figure 5 is an exploded cross-sectional view showing a noise prevention triple joint pipe according to the present invention.

<Explanation of symbols for main parts of drawing>

10: outer tube 11: outer tube body 12: screw portion

13 flange portion 14 drain pipe connection 15 connector portion

16: locking step 17: outer space 20: noise reduction tube

21: internal soft pipe 22: external soft pipe 23: space

24: engaging groove 25: denture meat 30: sealing ring

31 ring-shaped body 32: drain pipe catching part 33: blocking protrusion

34: rib 35: third space portion 40: packing

41: primary packing 42: secondary packing 43: seal wing

50: support ring 51: arc support 60: tightening nut

100: triple joint pipe 101: drain pipe

The present invention relates to a triple joint pipe for noise prevention, and more particularly, a noise attenuating tube formed of two layers of soft synthetic resin is inserted into an outer tube formed of a hard synthetic resin material, and a noise attenuating tube is installed in the outer tube. When installed inside, the space is inserted between the outer circumference of the noise damping tube and the inner circumferential surface of the outer tube, and the insertion part is inserted. The end insertion start portion of the noise attenuation tube is fitted into the locking jaw inside the outer tube, and the other end is sealed by a sealing ring. In order to minimize the noise in the joint pipe and to improve the sealing force at the part to which the drain pipe is connected, a double packing is formed in the drain pipe connecting part which is fixed and the drain pipe outside the sealing ring is inclined inwardly. It is for.

Conventional anti-noise joint pipe is known as Utility Model Registration No. 261548 (name of the design: double pipe pipe connecting body), such a conventional design, as described in the claims, claims 1 or 1 of the tubular body made of synthetic resin material or In the double pipe pipe connecting body formed by connecting the fastening nut pipe to the screw pipe portion formed on both sides, forming a soundproof space by forming a double wall inside the cylinder, and built the inner pipe body of the soft synthetic resin material having the bent ends at both ends The bent end of the inner tube is inserted into the soundproof space, and the fixed tube and the connecting tube are inserted into both ends of the inner tube, so that the smoothing portion of the inner tube can be pressed inwardly. will be.

Such a conventional design has an effect of reducing noise by forming a portion in which the fluid falling water collides when the fluid falling water hits the inner tube made of the soft synthetic resin material.

However, this means that the inner tube body installed inside the cylinder made of a hard synthetic resin material is formed in one layer, and a plurality of annular protrusions protruding from the outer surface of the inner tube body formed in this layer are in close contact with the inner surface of the rigid body. Since it is installed in the state, a part of the falling water that hits the inner surface of the inner pipe is reduced, but the damping effect of the noise is not satisfactory because the impact of the falling water is transmitted directly to the hard body. I still had it.

The present invention is to solve the above problems, the soft noise attenuating tube is inserted into the interior of the outer tube formed of a hard synthetic resin material formed in two layers formed a space portion therein, the noise formed by these two layers On the outer surface of the attenuating tube, a protrusion is formed to protrude between the outer circumferential surface of the noise attenuating tube and the inner circumferential surface of the outer tube, and when the noise attenuating tube is installed inside the outer tube, the front end of the attenuating tube is inserted. The inlet part is fixed to the locking jaw inside the outer tube while the other end is fixed by a sealing ring that seals the space of the noise attenuation tube without shrinking, so that the inner soft tube floats in the air at a distance from the outer soft tube. In this case, the internal soft pipe reduces a large amount of noise primarily, and the second one is produced in the space between the outer circumferential surface of the noise attenuating pipe and the inner circumferential surface of the outer pipe. The technical problem is to provide a noise prevention triple joint tube that can reduce the noise and excellent noise reduction effect.

In addition, the drain pipe connecting portion is connected to the drain pipe is installed in the inclined packing inclined inwards, it is another technical problem to improve the sealing force in the part connected to the drain pipe.

In order to solve the above technical problem, the present invention, the drain pipe connecting portion having a screw portion and a flange portion is formed on one side of the outer tube body formed of a hard synthetic resin material, the inner diameter of the outer tube body is larger than the outer tube body A noise attenuation tube composed of an external soft tube and an internal soft tube is formed inside the outer tube in which the reduced connection tube part is formed, and a sealing ring for fixing the noise attenuation tube is inserted into the drain pipe connection part. The primary packing, the support ring, and the secondary packing are inserted and installed in order, and the tightening nut is screwed to the threaded portion of the outer tube so that the outer tube and the outer tube are tightly coupled to each other. In the inner part of the noise reduction tube and the outside of the noise damping tube is formed to protrude inwardly the engaging jaw of the same size as the connecting pipe portion. The insertion start portion of the vaginal canal is integrally connected, and an inner circumference of the insertion end of the vaginal canal is formed with a catching groove which is caught by a locking jaw of the outer tube, and is externally connected between the outer surface of the outer soft tube and the inner circumferential surface of the outer tube body. A plurality of protrusions are formed to protrude to form a space portion, the sealing ring is formed in the inner peripheral edge of the insertion start portion side of the ring-shaped body inserted into the drain pipe connection portion of the outer tube inward, the inner and outer sides of the drain pipe caught part Insertion into the opening of the opening of the space formed between the flexible pipe is formed so as to protrude the blocking projection blocking the entrance, the outer peripheral surface of the ring-shaped body in contact with the inner peripheral surface of the drain pipe connection portion between the outer surface of the ring-shaped body and the inner peripheral surface of the drain pipe connection A plurality of ribs are formed to protrude to form the third space portion, the sealing blade is inclined inwardly on the inner periphery of the primary and secondary packing It is characterized in that formed.

Hereinafter, with reference to the accompanying drawings, Figures 1 to 5 for the noise prevention triple joint according to the present invention.

The triple joint pipe for noise prevention according to the present invention includes an outer tube 10 formed of a hard synthetic resin material such as PVC, and an outer space portion 17 and a space portion inserted into the outer tube 10 to reduce noise. A sealing ring for installing the noise attenuation pipe 20 consisting of an outer soft pipe 22 and an inner soft pipe 21 and a noise attenuating pipe 20 to be sealed inside the outer pipe 10. 30 and the primary packing 41, which is inserted into the drain pipe connection portion 14 in order to closely couple the drain pipe 101 to the triple joint pipe 100 of the present invention, support ring 50, and 2 The vehicle packing 42 and a fastening nut 60 fastened to the threaded portion 12 of the outer tube 10.

As shown in FIGS. 1 and 5, the outer tube 10 includes a drain pipe connecting portion 14 having a screw portion 12 and a flange portion 13 on one side of the outer tube body 11. The other side of the body 11 is formed with a connecting tube portion 15 is reduced in diameter than the outer tube body 11, the inner side of the outer tube body 11, the locking jaw 16 of the same size as the connecting tube portion 15 ) Is formed to protrude inward.

As shown in FIGS. 1 to 3 and 5, the noise attenuation tube 20 inserted into the outer tube body 11 may have only one side of the insertion start portion of the inner soft tube 21 and the outer soft tube 22. It is formed in two layers by the internal soft pipe 21 and the external soft pipe 22 connected integrally, and the other end of the front circumference excluding the connected part of the insertion start part has a gap between the internal and external soft pipes 21. The space portion 23 is formed between the 22, and the engaging groove 24, which is fitted to the locking jaw 16 of the outer tube 10, is formed at the inner circumference of the insertion end of the tip. The outer circumferential surface of the tube 22 is in contact with the inner circumferential surface of the outer tube body 11 to form an outer space portion 17 between the outer surface of the outer soft tube 22 and the inner circumferential surface of the outer tube body 11. Protruding meat 25 is formed to protrude.

Then, the sealing ring 30 is caught in the drain pipe at the inner peripheral edge of the insertion start portion of the ring-shaped body 31 is inserted into the drain pipe connecting portion 14 of the outer tube 10 as shown in Figures 1,2 and 4,5. The part 32 is formed inwardly, and the backside of the drain pipe catching part 32 is inserted into the open inlet of the space part 23 formed between the inner and outer soft pipes 21 and 22 to block the inlet. Frame 33 is formed to protrude, the outer peripheral surface of the ring-shaped body 31 in contact with the inner circumferential surface of the drain pipe connecting portion 14 between the outer surface of the ring-shaped body 31 and the inner peripheral surface of the drain pipe connecting portion 14 A plurality of ribs 34 for forming 35 are formed to protrude.

In addition, as shown in FIGS. 1 to 3, a primary packing 41 having a sealing blade 43 inclined inwardly is inserted at an inner circumference at the rear of the sealing ring 30, and the primary packing 41 of the primary packing 41 is inserted. At the rear, a support ring 50 having an arc-shaped support part 51 in contact with the rear surface of the primary packing 41 is inserted, and at the rear of the support ring 50, a sealing blade 43 is inclined inwardly. The packing 42 is inserted, and the threaded portion 12 is pressed into the sealing ring 30 inserted into the drain pipe connection part 14, the primary packing 41, the support ring 50, and the secondary packing 42. The tightening nut 60 to be fixed is fastened.

In the description of the present invention, the elbow (L) fitting pipe is illustrated in the drawings, but the soft synthetic resin material or the rubber material is formed inside the outer tube body 11 formed of the hard synthetic resin material, which is the main part of the present invention. The configuration of inserting and installing the noise reduction tube 20 formed in two layers by using, and the configuration of installing two packings in which the seal wing 43 is formed in the drain pipe connection portion 14 to which the drain pipe is connected is doubled. Of course, it is also possible to apply to T-type joints, Y-type joints, and ear joints.

Referring to Figures 1 to 5 the operational relationship of the present invention configured as described above is as follows.

When to assemble a triple joint pipe for noise prevention according to the present invention, as shown in Figure 5 inserts the noise attenuation tube 20 into the outer tube body 11 of the outer tube (10). At this time, the inner diameter of the outer tube body 11 and the outer diameter of the noise attenuation tube 20 is the same as the protrusions 25 formed to protrude outside the outer soft tube 22 of the noise damping tube 20 is the outer tube body. The outer space portion for noise attenuation between the inner circumferential surface of the outer tube body 11 and the outer surface of the outer soft tube 22 of the noise attenuation tube 20 as shown in FIGS. 1 and 3 in contact with the inner circumferential surface of the 11. (17) is formed.

When the noise reduction tube 20 is inserted into the outer tube body 11 as described above, the inner and outer soft tubes 21 and 22 are inserted into the insertion start portion connected integrally with each other, FIGS. 1 and FIG. As shown in 5, a locking groove 24 is formed at the front end insertion start side of the noise reduction tube 20, and a locking jaw 16 is formed at the inner side of the outer tube body 11 to engage the locking groove 24. The tip insertion start portion of the noise reduction tube 20 is firmly fixed to the locking step 16 of the outer tube body 11 without flow.

At this time, the other end of the noise attenuation pipe 20 is a state in which the inner and outer soft pipes 21 and 22 are spaced apart with the space 23 interposed therebetween, and the other end of the noise attenuation pipe 20 is opened. It is in a state. In this state, as shown in FIGS. 1, 2 and 5, when the sealing ring 30 is inserted into the drain pipe connecting portion 14 of the outer tube 10, the rib 34 protruding to the outer circumferential surface of the ring-shaped body 31 is formed. The end and the inner circumferential surface of the drain pipe connecting portion 14 is fitted snugly is formed between the outer circumferential surface of the ring-shaped body 31 and the inner circumferential surface of the drain pipe connecting portion 14, the third space portion 35 for noise reduction.

Then, when the sealing ring 30 is inserted into the drain pipe connecting portion 14 as described above, the blocking protrusion 33 formed to protrude on the insertion start portion side of the sealing ring 30 is an inner, outer soft pipe 21 (22) Is inserted into the inlet of the opening 23 between the inner and outer openings 21 to seal the space 23 between the inner and outer flexible pipes 21 and 22, and at the same time the sound attenuating pipe 20 is 11) can be firmly fixed to the inside of the inside, and as the blocking protrusion 33 is inserted into the inlet of the open space portion 23 between the inner and outer soft pipes 21 and 22, the inner and outer The soft pipes 21 and 22 are prevented from contracting.

After the sealing ring 30 is inserted as described above, as shown in FIGS. 1, 2 and 5, the primary packing 41, the support ring 50, and the secondary packing 42 are rearward of the sealing ring 30. ) In turn and then tighten the tightening nut 60 to the threaded portion 12, the sealing ring 30 inserted into the drain pipe connecting portion 14, the primary packing 41, the support ring 50, the secondary The packing 42 is prevented from coming out.

At this time, the tightening nut 60 is loosely fastened, and the sealing blade 43 formed to be inclined downward on the inner circumference of the primary and secondary packings 41 and 42 is inclined toward the inside. .

In this state, when the drain pipe 101 is inserted into the sealing ring 30, the primary packing 41, the support ring 50, and the secondary packing 42 as shown in FIG. Each sealing wing 43 of the formed primary and secondary packings 41 and 42 is in close contact with the outer circumferential surface of the drain pipe 101.

At this time, the two sealing wings 43 are formed to be inclined inwardly while having a predetermined width to be in close contact with the surface contact at a space between the outer circumferential surface of the drain pipe 101 by the elasticity of the sealing wings 43. The effect is good, there is an effect that is also strengthening the holding force for holding the drain pipe (101).

After inserting the drain pipe 101 into the drain pipe connection part 14 as described above, when the tightening nut 60 loosely fastened to the screw part 12 is screwed tightly, the screw part 12 formed in the outer pipe 10 is fixed. ) And the female threaded portion of the tightening nut 60 are tightly coupled, and the sealing ring 30 inserted into the drain pipe connecting portion 14, the primary packing 41, the support ring 50, and the secondary packing 42 are firm. It is fixed so that the assembly of the drain pipe 101 is completed.

When water is introduced into the triple joint pipe 100 in the state where the assembly and installation of the triple joint pipe 100 are completed as described above, the water introduced into the triple joint pipe 100 is the first outer tube ( The noise attenuating tube 20 is inserted into the inside of the 10), the noise attenuating tube 20 is formed of two layers of inner and outer soft pipes 21 and 22 with the sealing ring 30 therebetween. As the outer space 17 is formed between the outer circumferential surface of the outer soft pipe 22 and the inner circumferential surface of the outer tube body 11, the primary space in the space 23 and the outer space 17 are formed. Secondly, the noise is reduced.

In particular, the noise attenuation pipe 20 is doubled by the inner and outer soft pipes 21 and 22 with the space 23 interposed therebetween in a sealed state as a soft synthetic resin material or a rubber material having a large noise reduction effect. Since the internal soft pipe 21 is in a floating state in the air, the impact sound of the water hitting the internal soft pipe 21 is attenuated most in the internal soft pipe 21.

This is to attenuate the noise primarily in the soft material when the water hits the soft noise reduction tube 20, the internal soft tube 21 directly hit the water in the noise attenuated state is As the space portion 23 is located on the outside, a large amount of noise that strikes the internal soft pipe 21 is attenuated in the space 23, followed by the external soft pipe 22 and then the external space portion. Since noise is attenuated from (17), it is possible to see a very good noise attenuation.

Lastly, as shown in FIGS. 1, 2, and 4, another third space part 35 is disposed between the outer surface of the sealing ring 30 connected to the noise damping pipe 20 and the inner circumferential surface of the drain pipe connection part 14. It is formed to attenuate in the third space portion 35 until the sound of water going through the drain pipe 101 will be able to see the noise reduction so excellent.

The triple noise pipe for noise prevention of the present invention as described above is formed in two layers so that the soft noise attenuating tube inserted into the outer tube formed of a hard synthetic resin material forms a space therein. On the outer surface of the noise attenuation tube, protrusions are formed to protrude between the outer circumferential surface of the noise attenuation tube and the inner circumferential surface of the outer tube, and when the noise attenuation tube is installed inside the outer tube, the tip of the noise attenuation tube is installed. The insertion start portion is fixed to the locking jaw inside the outer tube while the other end is fixed by a sealing ring that seals the space portion of the noise damping tube without shrinking, so that the inner soft tube floats in the air at a distance from the outer soft tube. In this case, the internal soft pipe reduces a large amount of noise primarily, and in the second part, in the space between the outer circumferential surface of the noise attenuating pipe and the inner circumferential surface of the outer pipe. Is to see a good noise attenuation by attenuating noise.

In addition, the drain pipe connection portion is connected to the drain pipe is provided with two seals with a double wing to double the drain pipe is securely connected to the drain pipe connection, and at the same time there is an effect that can improve the sealing force in the part connected to the drain pipe. .

Claims (1)

A drain pipe connecting portion 14 having a screw portion 12 and a flange portion 13 is formed on one side of the outer tube body 11 formed of a hard synthetic resin material, and the outer tube body on the other side of the outer tube body 11. (11) the outer soft pipe 22 and the inner soft pipe to form the outer space portion 17 and the space portion 23 in the outer tube 10, the inner diameter of the connecting tube portion 15 is reduced than the inner tube ( The noise attenuation pipe 20 made of 21 is inserted, and the drain pipe connecting portion 14 has a sealing ring 30 for fixing the noise attenuation pipe 20 and a primary packing for tightly coupling the drain pipe and the outer pipe ( 41), the support ring 50 and the secondary packing 42 are inserted and installed in order, and the fastening nut 60 is screwed into the threaded portion of the outer tube. The inner side of the outer tube body 11 is formed so that the engaging projection 16 of the same size as the connecting tube portion 15 protrudes inward, The insertion start portion of the inner soft tube 21 and the outer soft tube 22 of the noise reduction tube 20 are integrally connected, and the locking jaw of the outer tube 10 is formed at the inner circumference of the tip insertion start portion. A plurality of protrusions 25 are formed to engage the grooves 24 to be caught and to form the outer space portion 17 between the outer surface of the outer soft tube 22 and the inner circumferential surface of the outer tube body 11. ) Is formed to protrude, The sealing ring 30 is formed in the drain pipe catching portion 32 inwardly on the inner circumference of the insertion start portion side of the ring-shaped body 31 is inserted into the drain pipe connecting portion 14 of the outer tube 10, the drain pipe catching portion 32 At the rear of the inner and outer flexible pipes 21, 22 is inserted into the opening of the opening of the space portion 23 formed between the blocking member 33 is formed to protrude, blocking the entrance, ring-shaped body 31 The outer circumferential surface of the plurality of ribs 34 protruding from the inner circumferential surface of the drain pipe connecting portion 14 to form a third space portion 35 between the outer surface of the ring-shaped body 31 and the inner circumferential surface of the drain pipe connecting portion 14. Formed, Triple-sealing pipe for noise prevention, characterized in that the sealing wing blade 43 is formed inclined inward to the inner periphery of the primary and secondary packing (41) (42).

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