KR200356963Y1 - Socket for connecting of double walled pipe - Google Patents

Abstract

The present invention is configured to be movable horizontally from the outside of the double wall pipe, it is very easy to install between the fixed installations that are pre-installed and fixed at the time of new and repair construction, by forming the insertion end separated into a plurality of pieces like comb teeth To provide a double wall pipe connection socket that can facilitate insertion coupling.

The double wall pipe connecting socket of the present invention has insertion end portions 111 and 121 extended in an inclined direction, and is coupled to one side of at least one double wall pipe type pipe member, and at least one mounted to the valley portion of the pipe member. The hollow body portion 10 having an inner circumference not forming any protrusions and integrally protruding from the outer circumference of the body portion 10 so as to maintain watertightness by frictional force from the packing 30 of the body 30. At least one outline protrusion 20, 21, 22, 23, 24.

Description

Double Wall Pipe Connecting Socket {SOCKET FOR CONNECTING OF DOUBLE WALLED PIPE}

The present invention relates to a double wall pipe connection socket, and more particularly, to a double wall pipe connection socket used to interconnect pipes, corrugated pipes, double wall pipes, etc. buried underground.

Underground pipe members, commonly referred to as double-walled pipes, have a corrugated uneven surface, so durability and structural stiffness are very excellent compared to their loads, and are very useful for discharging fluids such as sewage, sewage, or wastewater into a collection station or river. Suitable.

The double wall tube is produced and manufactured by an automatic process because of its good formability, and is usually cut into a predetermined length (about 6 m) and supplied to the field.

The conventional construction method of such double wall pipes is to bury the double wall pipes which are individually cut at the actual plumbing site in sequence, and connect each double wall pipe to a pipe connection to complete a continuous pipe as a whole.

The pipe connector used for joint connection of the double wall pipe (1) having the hill and valley (2) according to the prior art is an inner depression in the center of the socket body (3), as disclosed in 2004 Utility Model 340910 An inner protrusion 5 is formed, and both ends of the socket body 3 having an uneven surface of a hill and a valley are formed to be bent upwardly, so that the locking jaw 6 is provided, but the socket body 3 is formed. Fixing clip (7) to be fitted to the bone portion of the configuration is configured to be integrally formed on the locking jaw (6).

However, in the prior art, since the inner protrusion formed in the recessed or axial direction protrudes inside the center of the socket body, which is a pipe connector for double wall pipe, the double wall pipe can only be inserted in the direction of the arrow, and the material is opaque. There is a disadvantage that the coupling position can not be visually confirmed from the outside.

In addition, the conventional pipe fittings for double wall pipes, as mentioned above, can not only bury the double wall pipe and the socket body sequentially, there is an inefficiency in buried construction as follows.

In other words, when constructing new pipes, it is necessary to extend the double wall pipe from 'fixed installations installed in the ground' (hereinafter referred to as 'equipment installations') to main pipes (a kind of installations) through which sewage flows, such as manholes and sewage receivers. do.

At this time, before any one double wall tube is coupled to one side of the socket body, the other double wall tube cannot be coupled to the other side of the socket body.

In addition, the length of the entire double wall pipe should be formed relatively longer than the distance between the existing installations (manholes, sewers, main pipes), so that the existing installations and the double wall pipes can be inserted and combined, and the 'branch entrance' of the existing installations. (Hereinafter, branch entrance) 'branch' (hereinafter, branch) is protrudingly coupled.

In addition, when the repair construction is performed according to the partial breakage of the double wall pipe, even if only a part of the double wall pipe is damaged, there is a problem that the whole must be excavated and replaced.

For this reason, in the final connection part of the site laying work, both the new construction and the repair construction are combined with the double wall pipe and the pipe connection through a very difficult construction method such as the following, so the installation and repair construction is very inefficient, This will take a relatively long time.

In other words, the construction workers by using a device such as a crane, fork-lane to maintain the installation to be inclined by applying excessive force to the installation.

Accordingly, between the branch pipe entrance of the existing installation and the end of the double wall pipe extending to the front of the branch pipe entrance, or between the branch pipe connected to the branch pipe entrance of the existing pipe and the pipe connection connected to the end of the double wall pipe in front of the branch pipe entrance. Temporary spacing for insertion is created.

In this state, the worker mounts a packing such as a rubber ring to the double wall pipe and performs a dangerous operation such as an adjustment operation to coincide the shaft cores, and then moves the installation of the double wall pipe to maintain the inclined part. The end is forcibly inserted into the pipe inlet, or the branch pipe of the paper inlet is forcibly inserted into the pipe connection.

Not only is there a risk of safety accidents in this process, but the construction and laying of double wall pipes is very difficult and can not be done quickly.

In addition, the conventional pipe connector for double wall pipe is formed so that the inner diameter of both ends of the socket body can not be variably expanded and contracted by its shape, except that the axial center direction coincides with the linear direction, for example, inserted in the oblique direction This has an almost impossible disadvantage.

Therefore, an object of the present invention for solving the above-mentioned problems is to form at least one outer protrusion integrally on the outer periphery of the main body portion, it is possible to horizontally move the main body portion from the outer periphery of the double wall tube for the connection of the double wall tube It is to provide a double wall pipe connecting socket that can be easily installed and repaired.

In addition, another object of the present invention is to form a plurality of pieces of insertion end separated on both sides of the main body portion like a comb, double-wall pipe connection that can be inserted and coupled in the direction of the oblique direction to facilitate the connection construction of the main body portion and the double wall pipe We want to provide a socket.

In addition, another object of the present invention is injection molding method of a material having excellent transparency such as ABS (Acrylonitrile Butadiene Styrene), PVC (PolyVinyl Chloride), polyethylene (PE), polycarbonate (PC), acrylic (PMMA; Polymethyl Methacrylate) It is intended to provide a double wall pipe connection socket that can easily check the connection state of the main pipe during construction.

In addition, another object of the present invention is to extend the double wall pipe in the axial direction without moving the installation, or to repair only the damaged part, various double wall pipe connecting sockets that can be convenient and shorten the construction period It is to provide a construction method using.

1 is a cross-sectional view illustrating a pipe connector for a double wall pipe according to the prior art,

2 is a perspective view of a double wall pipe connecting socket according to the first embodiment of the present invention;

3A to 3D are enlarged cross-sectional views for explaining a modification of the outer protrusion shown in FIG. 2;

4a to 4d are cross-sectional views for explaining the installation relationship of the double wall pipe connecting socket shown in FIG.

5 is a cross-sectional view for explaining the installation relationship of the double wall pipe connecting socket according to the new construction,

6a to 6d are cross-sectional views for explaining the installation relationship of the double wall pipe connection socket according to the repair construction,

7 is a cross-sectional view of a double wall pipe connecting socket according to a second embodiment of the present invention;

8 is a cross-sectional view for explaining the coupling relationship of the double wall pipe connecting socket shown in FIG.

9 is a cross-sectional view of a double wall pipe connecting socket according to a third embodiment of the present invention;

10 is a cross-sectional view for explaining the coupling relationship of the double wall pipe connecting socket shown in FIG.

11 is a block diagram illustrating a construction method using a double wall pipe connecting socket of the present invention;

12 is a flow chart for explaining the basic installation construction method shown in FIG.

FIG. 13 is a flowchart illustrating a new construction method of sequentially piping shown in FIG. 11;

14 is a flow chart for explaining a new construction method for arranging the connector shown in FIG. 11 in advance;

15 is a flow chart for explaining the repair construction method shown in FIG.

<Description of the symbols for the main parts of the drawings>

10: main body 19: groove

20, 21, 22, 23, 24: Outer process 30, 31: Packing

40: joist 41, 42: rope

50, 56: installation fixture 60: band member

70: clamp 110, 120: band connection site

Objects of the present invention as described above have an insertion end extended in the inclined direction, in the double wall pipe connecting socket coupled to one side of the at least one double wall pipe type pipe member, at least mounted to the bone portion of the pipe member A hollow body portion having an inner circumference not forming any protrusions, and at least one outer protrusion integrally protruding from the outer circumference of the body portion so as to maintain watertightness by frictional force from one packing; It is achieved by a double wall pipe connecting socket.

Hereinafter, exemplary embodiments of the present invention will be described with reference to FIGS. 2 to 15.

First Embodiment

First, FIG. 2 is a perspective view of a double wall pipe connecting socket according to a first embodiment of the present invention, and FIGS. 3A to 3D are enlarged cross-sectional views for explaining a modification of the outer protrusion shown in FIG. 2. 4A to 4D are cross-sectional views illustrating the installation relationship of the double wall pipe connection socket shown in FIG. 2, and FIG. 5 is a cross-sectional view illustrating the installation relationship of the double wall pipe connection socket according to the new construction, and FIG. 6A. 6D are cross-sectional views illustrating the installation relationship of the double wall pipe connecting socket according to the repair construction.

As shown in Figure 2, the double wall pipe connection socket of the present invention has a technical configuration that is easy to pipe and fasten the pipe member.

The technical features of the present invention are used to connect pipes to sewers or manholes, which are already buried, and to repair them in case of breakage of the pipes. Preferably, it has a cylindrical body portion 10.

The main body 10 has a circular to elliptical shape as a pipe tube body with both ends penetrated, and has an inner diameter that can be inserted into the outer periphery of each double wall pipe in accordance with the product-specific standard of the double wall pipe.

In order to facilitate the insertion coupling of the double wall tube, the insertion end 11, 12 in the main body portion 10 has an inner diameter of the inclined portion extended in the inclined direction relative to the inner diameter of the main body portion 10.

The outer peripheral edge of the center portion of the main body 10 has at least one outer protrusion 20 extending in the circumferential direction and protruding integrally.

Here, the outer protrusions 20 are formed in a ring shape, and the inner circumference of the main body portion 10 on which the outer protrusions 20 are formed does not form any protruding portions, so that the outer protrusions 20 have a smooth and relatively flat circumferential ratio. .

In this case, the traction force of the joist is coupled to the rope at the outer periphery of the double wall pipe can be transmitted to the center side of the main body portion 10 through the outer projection 20, the main body portion 10 is a double wall pipe as a horizontal moving shaft It is very easy to move horizontally.

The main body 10 and the outer protrusion 20 are made of polyvinyl chloride (PVC), polypropylene (PP), polyethylene (PE), polycarbonate (PC), acrylonitrile-butadiene-styrene (ABS), and acrylic (PMMA). It is molded into at least one material selected from the group of synthetic resins of opaque or transparent material, including.

Herein, PVC is used for general vinyl chloride pipes and pipes for agriculture, construction, and sewage materials, and is manufactured by the manufacturing method of vinyl chloride (EDC) using ethylene as a raw material, having excellent transparency and gloss and good strength. In order to improve thermal stability, a predetermined amount of stabilizer or plasticizer is added and used.

PP is a vinyl polymer, which can be extensively modified in mechanical properties by blending fillers (where the fillers include asbestos, silica mica, glass fibers, etc.), and its transparency is a crystal nucleating agent (here, crude The nucleating agent has an optical property which is much superior to polyethylene by the addition of metal salts such as Na, Zn, and Al of aromatic carboxylic acids.

PC is made by reacting phosgene or carbonate under a solvent of bisphenol A produced from acetone and phenol as raw materials. PC is not only excellent in rigidity and mechanical strength but also excellent in transparency and weatherability after acrylic.

ABS is a plastic material located between the reinforced styrene resin (PS) and the reinforced acrylic. It is low in strength, toughness, transparency, gloss and surface hardness, and resistant to acids and alkalis. It is easy to use, economical in price, resistant to impact and corrosion, and can be applied to flame retardant products that are not easily burned.

PMMA has excellent weather resistance, optical properties, electrical insulation, especially transparency among many plastic materials, and has a heat deflection temperature of 66 ~ 99 ?? As a range, it is a material that can withstand sufficiently at normal temperatures. In particular, since the PMMA is excellent in transparency, even if the main body 10 having a thickness of 10 cm or more can be produced, the inside can be viewed.

After blending the compound corresponding to the above-described material with an impact modifier, a plasticizer, a stabilizer, a nucleating agent and the like at a predetermined ratio, the body part 10 is molded and manufactured in a predetermined mold of an injection machine heated to a suitable melting temperature for each material.

The main body 10 of the present invention produced as described above is finished in a transparent or opaque product according to the material.

In the modification as shown in FIG. 3A, it is preferable that the plurality of outer protrusions 21 are integrally arranged while maintaining a predetermined interval in the circumferential direction at the outer peripheral edge of the central portion of the main body portion 10.

As shown in FIG. 3B, each of the outer protrusions 22 may be formed in one of a plurality of types formed in a ring shape in a circumferential direction, or a plurality of types formed at a predetermined interval in the circumferential direction. It is preferable that the coupling groove 22a is further formed to insert the tip portion of the predetermined tool for the rotation of 10).

As shown in FIG. 3c, the other outer protrusion 23 of any one of the above types has a cross section of any one of 'a', 'b', 'c', and 'hook'. , Can easily fasten the rope to the jaw and can easily act as a traction in one direction.

As shown in FIG. 3D, another outer protrusion 24 of any one of the above types has a cross section of any one of an 'H' character, an 'I' character, and a 'T' character. The traction force can be easily acted on.

As shown in Figure 4a to 4d, the features of the coupling configuration of the present invention is as follows.

Referring to FIG. 4A, a ring-shaped watertight member (hereinafter, referred to as a 'packing 30') such as a rubber ring, a packing for a double wall pipe, a seal for a double wall pipe, and the like is formed at the end of the connecting pipe 1a having a double wall pipe shape. Is mounted.

The packing 30 provided in the present invention is a double wall pipe packing having watertight extension ribs and a separation preventing rib in an inclined direction to facilitate horizontal movement, and is disclosed in detail in Korean Patent Application Utility Model No. 302818 of 2002. It is preferable that it is a watertight member.

Since there are no protrusions or protrusions on the inner circumference of the main body 10, the main body 10 is connected to one side of the connecting pipe 1a, and also on the outer periphery of the other connecting pipe 1b, which also has a double wall pipe shape. It is inserted in the horizontal direction.

At this time, the operator can easily act the traction force in the horizontal direction by using the outer projection 20 formed in the center of the body portion 10 as a jaw.

Referring to FIG. 4B, the packing 31 as described above is also mounted on the other connecting pipe 1b into which the main body 10 is inserted.

Referring to FIG. 4C, ropes 41 and 42 of the joists 40 are installed on one side of the connecting pipe 1a and the main body 10 inserted into the other connecting pipe 1b.

In this case, the joist 40 can pull the main body 10 through the rope 42 fastened to the outer protrusion 20 in the state supported by the mountain and the valley of one side of the connecting pipe (1a) according to its operation. Will be.

That is, when the operation of the jockey 40 starts, the main body portion 10 slides beyond the packing (31, 30), and when the operation of the jockey 40 is stopped, as shown in Figure 4d, the main body The part 10 is located in a predetermined engagement position.

Thus, since the main body 10 does not form any inner protrusions including recesses, protrusions, and the like on its inner circumference, it can move horizontally along the connecting pipes 1a and 1b. The connecting pipes 1a and 1b coupled to each other by the horizontal movement of the main body 10 have a feature in installation that does not have to move in the embedding position.

As illustrated in FIG. 5, the above-described installation construction features allow the operator to have a connection pipe 1a or branch pipe having a shape of a double wall pipe between pre-installation installations 50 such as manholes, rain gutters, and main pipes. 51 can be buried or repaired in sequence very easily.

For example, during the new construction of the pipe line, the worker seats the existing installation 50 such as a manhole at the installation position, and inserts the branch pipe 51 into the branch pipe inlet 52 of the existing installation 50.

At this time, a stop jaw 53 is formed at the inner end of the branch pipe inlet 52 so that one end of the branch pipe 51 no longer enters the inside of the installation 50.

Thereafter, the operator installs the packing 31 at the other end portion of the branch pipe 51, and then inserts one end of the body portion 10 into the other end of the branch pipe 51 to surround the packing 31.

The other end of the main body portion 10 is inserted into the connecting pipe (1a) with the other packing 30 is mounted, the elbow pipe 54 is coupled to the connecting pipe (1a), the elbow pipe 54 is It is connected to the main pipe 55 through the 'T' tube (not shown).

Here, the outer protrusion 20 serves to effectively transmit the traction force through the rope of the manpower or joist of the worker to the center of the body portion 10 to easily generate a horizontal movement.

In addition, as shown in Figures 6a to 6d, the installation feature as described above allows the operator to easily perform the maintenance work.

That is, a part of the branch pipe 51 connected between the branch pipe inlet 52 and the elbow pipe 54 of the existing installation 50, for example, a pipe installed by a general double wall pipe, is effectively damaged only in the damaged part. It can be watertight.

The operator cuts a part of the branch pipe 51 by the distance m corresponding to the breakage site.

Thereafter, the worker mounts the packings 30 and 31 at the ends of the one branch pipe 51a and the other branch pipe 51b, and inserts the main body portion 10 into the one branch pipe 51a through the cut space.

Then, the worker is equipped with a joggi (not shown) including a rope to the outer projection 20 and the other branch pipe (51a), after which the joist is fitted to the main body portion 10 fitted to one branch pipe (51a) the other branch pipe (51b). By moving horizontally toward), consequently, the branch pipes 51a and 51b are connected to each other through the main body 10.

In this way, the maintenance work can be performed quickly because there is no need to move the fixture 50 and the elbow pipe 54.

Second Embodiment

The double wall pipe connecting socket according to the second embodiment of the present invention is the same as the previous embodiment except that the insertion end portions corresponding to both ends of the main body portion are separated into combs in several pieces. Therefore, the same or similar reference numerals will be given to the same or corresponding components from FIGS. 2 to 8, and the description thereof will be omitted here.

In the drawings, Figure 7 is a cross-sectional view of a double wall pipe connecting socket according to a second embodiment of the present invention, Figure 8 is a cross-sectional view for explaining the coupling relationship of the double wall pipe connecting socket shown in FIG.

As shown in FIG. 7, the double wall pipe connecting socket of the present invention has a main body portion 10 configured to facilitate the insertion coupling of the double wall pipe.

The main body portion 10 has insertion end portions 111 and 121 having inner diameters of the inclined portions extending in the inclined direction relative to the inner diameter of the main body portion 10.

Between the cutting end portions 112 and 122 disposed inside the main body portion 10 and the insertion end portions 111 and 121, band connection portions 110 and 120 are separated into combs in a plurality of pieces. Doing.

As shown in FIG. 8, the main body 10 is fastened to the piping member 59 which is a double wall tube type pipe by a horizontal movement method using the outer protrusion 20, and tightly fastened by the band member 60. do.

The band member 60 compresses the band connection portions 110 and 120 separated from each other in the body portion 10 like the comb teeth between the insertion ends 111 and 121 and the cutting ends 112 and 122 in the axial direction. Let's do it.

The main body portion 10 may be easily connected to the piping member 59 through the band connecting portions 110 and 120, or may be inserted in the inclination angle direction without moving the previously embedded piping member 59. As a result, the band member 60 is prevented from being separated from the piping member 59.

Third Embodiment

The double wall pipe connecting socket according to the third embodiment of the present invention is the same as the previous embodiment except that the grooves extending in the circumferential direction are formed at the outer periphery of both ends of the main body, and the clamp is coupled to the grooves. . Therefore, the same or similar reference numerals will be given to the same or corresponding components from FIGS. 2 to 10, and the description thereof will be omitted here.

9 is a cross-sectional view of a double wall pipe connecting socket according to a third embodiment of the present invention, Figure 10 is a cross-sectional view for explaining the coupling relationship of the double wall pipe connecting socket shown in FIG.

9 and 10, grooves 19 having a depth relatively shallower than the thickness of the body portion 10 are formed at the end portions of the body portion 10 in the circumferential direction.

One end of the clamp 70 is coupled to the groove 19, and the other end of the clamp 70 is coupled to any one of the pipe member 59 or the connection tube of the double wall tube type, and the band member described above. It will play the same role.

Of course, it is also possible that the main body portion 10 having the grooves 19 is further formed with a band connecting portion separated like the comb teeth described above.

Hereinafter, the construction method of the double wall pipe connecting socket will be described in detail.

In the drawings, Figure 11 is a block diagram for explaining the construction method using a double wall pipe connection socket of the present invention, Figure 12 is a flow chart for explaining the basic installation construction method shown in FIG. FIG. 13 is a flowchart illustrating a new construction method of sequentially piping shown in FIG. 11, and FIG. 14 is a flowchart illustrating a new construction method of arranging the connecting tube illustrated in FIG. 11 in advance. Is a flow chart for explaining the repair construction method shown in FIG.

As shown in Figure 11, the construction method using the double wall pipe connection socket presented by way of example in the present invention, the basic installation construction method (S10) as mentioned in the first embodiment, between the installation and the main pipe New construction method (S20) to sequentially pipe in the installation, and new construction method (S30) for arranging the connection pipe in advance between the existing installation and the main pipe, and repair construction method of repairing only the damaged portion without moving the existing installation or pipeline ( S40).

In the basic installation method (S10) shown in FIG. 12, the packing is mounted at the end side bone portion of one pipe member (S11), and the body part is inserted as if it wraps past the end of the other pipe member (S12).

In addition, the other packing is mounted on the end side bone portion of the other tube member to which the main body portion is coupled (S13).

Afterwards, the operator further applies an adhesive or the like around the packing (S14), or installs a joist on the main body and the one side pipe member (S15).

Then, the main body inserted into the other side tube member is horizontally moved so as to overlap between the one side tube member and the other side tube member by a joist or the like (S16).

The horizontally moved main body portion can maintain watertightness only by the elastic force of the packing, and is completely fixed to the tube member when the additionally applied adhesive or the like solidifies.

As shown in FIG. 13, the new construction method (S20) that sequentially pipes between the existing installation and the main pipe has been mentioned above in the description of FIG. 5.

That is, the operator is to attach the packing to the bone portion of both ends of the branch pipe (S21), respectively, and insert one end of the branch pipe equipped with such packing into the branch pipe entrance of the existing installation, so as to be connected to the branch pipe and the branch pipe entrance (S22). .

Thereafter, the operator inserts the main body into the connecting pipe (S23), and attaches packings to both ends of the connecting pipe (S24), respectively.

In addition, the operator may further perform the operation of mounting the joist or the adhesive as described above, and moves the body portion only horizontally until the outer end of the branch pipe is located to the center of the body portion (S25).

The operator repeatedly performs the steps 'S23' to 'S25' described above, thereby extending the plurality of connecting pipes to the main pipe one by one.

As shown in Figure 14, in the new installation method (S30) of arranging the connecting pipe in advance between the existing installation and the main pipe, the operator prepares by inserting the main body into the plurality of connecting pipes in advance (S31). At this time, it is preferable to insert two connecting tubes into the last connecting tube.

In addition, the operator installs the packing on both end portions of each of the connection pipe prepared in advance (S32).

Typically, there is a branch pipe entrance to the installation, and there is a branch pipe entrance to the elbow pipe or 'T' pipe connected to the main pipe or main pipe through which sewage and the like will flow. The operator installs the packing on both ends of each of the branch pipe and the main pipe of the main installation of the equipment to be inserted into each of the branch pipe entrance, and combines each branch pipe equipped with the packing to the corresponding branch pipe entrance (S33).

The operator arranges each connecting pipe combined with the main body part and the packing through the step S31 and the step S32, respectively, in a line between the branch pipe of the installation and the branch pipe of the main pipe (S34).

For example, the first main body part and the first connecting tube disposed close to the side of the fixture are called the first main body part and the first connecting tube, and the main body part disposed close to the main body side is called the last main body portion and the last connecting tube. .

In this case, the worker moves the first body horizontally in one direction to the position between the first connecting pipe and the branch pipe of the existing installation, and the second main body in one direction to the position between the first connecting pipe and the second connecting pipe. To move horizontally. In this way, the operator moves all the restriction body parts in one direction in the third, fourth to the last one, while horizontally moving the last body part in the other direction opposite to the one direction, so that the last connector and Ensure that the last body part spans between the main tubes of the main body.

As a result, the operator can maximize the construction efficiency through the new construction method (S30) of arranging the connection pipe in advance between the existing double wall pipe connection construction method and other existing installations and the main pipe.

As shown in FIG. 15, in the repair construction method S40 for repairing only a damaged part without moving a fixture or a pipe, when the damaged part is relatively shorter than the length of the main body part, the above-described FIGS. 6A to 6D are described. Perform maintenance as described.

However, if the damaged portion is relatively longer than the length of the main body, and maintenance cannot be performed with only one main body, it is necessary to further require at least one, that is, two or more body parts and a separate maintenance pipe in the following manner. do.

In other words, the operator cuts off the pipe breakage part (S41), inserts at least one main body into the outer periphery of the repair pipe (S42), and cuts the packing into the both ends of the remaining pipe after cutting the water pipe and the breakage part. After mounting (S43) and arranging a plurality of main body parts and packings to each other in a cutout area (S44), each main body is horizontally moved toward the remaining pipes located on both sides of the repair pipe, and as a result, one side Pipe and the maintenance pipe and the other side pipe to be connected to each other through each of the main body interposed therebetween (S45).

In the new construction or repair, the operator may further perform step S14 to further apply an adhesive or the like around the packing, or step S15 to install the joist on the main body and the one side pipe member before the horizontal movement of the socket body. Of course.

In the present invention configured as described above, the horizontally movable outer periphery of the double wall tube is formed on the outer periphery of the main body portion, and no protrusion or protruding jaw is formed on the inner periphery. There is an effect that can provide a double wall pipe connecting socket to consumers, contractors and contractors that can be very simple and easy to install between the fixed installations.

In addition, the double wall pipe connection socket of the present invention is a large-diameter pipe member provided by various types of joint pipe bodies such as transparent, semi-transparent, and local transparent to visually identify the internal coupling state, it is very suitable for the connection of large diameter double wall pipe have.

In addition, the double wall pipe connection socket according to the present invention can visually check the connecting part and the joint part of the main pipe, the joint pipe and the double wall pipe packing with the naked eye, and can maintain a good joint state between the main pipe and the pipe, and ensure water tightness and regulation. The construction (connection) according to the specification can easily determine whether the effect.

In addition, the double wall pipe connecting socket of the present invention forms a portion separated by comb teeth into a plurality of pieces between the incision end portion and the insertion end portion, and by placing a band member on the outside of such a portion, to facilitate insertion coupling In addition, there is an advantage that can be inserted into the main body portion in the oblique direction to the double-walled pipe.

In addition, the double wall pipe connection socket of the present invention is provided with a groove in the main body to provide a variety of methods of fixing, such as fastening to the pipe by a clamp, thereby maximizing the convenience of the user.

Claims (6)

In the double wall pipe connecting socket having insertion end portions 111 and 121 extended in the oblique direction, and coupled to one side of at least one double wall pipe type piping member, A hollow body portion 10 having an inner circumference which does not form any protruding portion so as to maintain watertightness by frictional force from at least one packing 30 mounted on the valley portion of the piping member, Double wall pipe connection socket, characterized in that it comprises at least one outer protrusion (20, 21, 22, 23, 24) integrally protruded to the outer periphery of the main body portion (10). The method of claim 1, The main body 10 and the outer protrusions 20, 21, 22, 23, 24 are polyvinyl chloride (PVC), polypropylene (PP), polyethylene (PE), polycarbonate (PC), acrylonitrile- A double wall pipe connecting socket, characterized in that it is molded from at least one material selected from the group of synthetic resins of opaque or transparent materials including butadiene-styrene (ABS) and acrylic (PMMA). The method according to claim 1 or 2, Double wall pipe connection socket, characterized in that the outer projection (22, 21, 22, 23, 24) is further formed with a coupling groove (22a). The method according to claim 1 or 2, The periphery (22, 21, 22, 23, 24) is 'a', 'b', 'c', 'hook', 'H', 'I', 'T' Double wall pipe connecting socket, characterized in that it has a cross section of any one of the rulers. The method according to claim 1 or 2, Between the cutting end portions 112 and 122 disposed inside the main body portion 10 and the insertion end portions 111 and 121, the band connection portions 110 and 120 are separated into combs in a plurality of pieces. Double wall pipe connection socket, characterized in that the forming. The method according to claim 1 or 2, In the end portion of the main body portion 10 is formed a groove 19 of a depth relatively shallower than the thickness of the main body portion 10 in the circumferential direction, One end of the clamp (70) is coupled to the recess (19), and the other end of the clamp (70) is a double wall pipe connecting socket, characterized in that coupled to any one of the piping member (59) or connecting pipe.