KR20210110420A - CPVC pipe coupling adapter for groove joint to secure hermetic stability and wall-through earthquake-resistant pipe structure employing the same - Google Patents

Abstract

The present invention relates to a CPVC pipe connection adapter for a groove joint with secured sealing stability, and a wall-penetrating type seismic pipe structure using the same, and more particularly, to a metal buried pipe passing through an installation hole formed in the wall through a groove joint, a CPVC pipe connection adapter for groove joints with secured sealing stability to form a separation joint state with improved fluidity secured between internal pipes made of a CPVC material, and a wall-penetrating type seismic pipe structure using the same. The CPVC pipe connection adapter for a groove joint of the present invention includes a joint body and a hollow support bush.

Description

CPVC pipe coupling adapter for groove joint to secure hermetic stability and wall-through earthquake-resistant pipe structure employing the same}

The present invention relates to a CPVC pipe connection adapter for a groove joint with secured sealing stability, and a wall-penetrating earthquake-resistant piping structure using the same, and more particularly, a metal buried pipe that penetrates an installation hole formed in a wall through a groove joint. And, it relates to a CPVC pipe connection adapter for a groove joint with sealing stability to form a separation joint with improved fluidity between internal pipes made of CPVC material, and a wall-penetrating type earthquake-resistant pipe structure using the same.

As is well known, the groove joint is to connect two pipes having an annular shoulder groove formed at the joint end in an end-to-end form using a grooving machine.

The groove joint includes a ring gasket that seals between two pipes to prevent leakage, and the ring gasket is provided therein, and both ends are fastened to a groove formed at the joint end of the pipe to connect the two pipes to each other It includes a pair of joint couplings connected in the longitudinal direction.

On the other hand, a pipe structure is formed in the building and configured to discharge sewage to the outside, and when the building shakes when an earthquake occurs, the pipes constituting the pipe assembly are individually shaken.

In particular, the piping structure formed by penetrating the pipe on the wall formed between the household external space and the household internal space penetrates the external pipe formed in the household external space, the internal pipe formed in the household internal space, and the installation hole formed in the wall. to include a buried pipe connecting between the external pipe and the internal pipe.

In addition, since the buried pipe and the external pipe are made of a metal material that can be plastically deformed, the joint end is plastically machined through a grooving machine to integrally form a groove to which the joint coupling of the grooved joint is attached, The buried pipe and the external pipe are connected to each other by forming a separate joint structure through a groove joint.

However, since the inner pipe connected to the buried pipe made of the metal material is made of CPVC material, it is difficult to plastically process the joint end through a grooving machine, unlike the buried pipe made of a metal material.

In addition, since it is manufactured long through extrusion and is cut to the length required at the site and constructed, forming a groove for the connection of the groove joint at the joint end of the buried pipe and the joint end of the inner pipe that requires a joint is difficult. realistically difficult.

Of course, it is possible to form a groove at the joint end by injection molding the internal pipe to a unit length, but this is not a fundamental solution due to the construction characteristics of the pipe construction, which is cut and constructed to suit the productivity and field conditions at the site.

Therefore, in the conventional wall-penetrating seismic-resistant piping structure, a separation joint structure is formed between the external pipe and the buried pipe so that flow is possible in the event of an earthquake, but a separation joint structure is not implemented between the buried pipe and the internal pipe made of CPVC material When an earthquake occurs, independent flow between the buried pipe and the internal pipe is difficult, which may cause damage to the buried pipe or damage to the internal pipe.

Accordingly, in the art, by increasing the diameter of the installation hole formed in the wall, and configuring the buried pipe disposed in the installation hole to flow, damage to the buried pipe and the internal pipe is minimized.

On the other hand, the present inventors, through the Republic of Korea Patent Registration No. 10-2063912, a grooved pipe part having a groove to which a groove joint is coupled to the outer diameter surface, and a groove head in which a joint pipe communicating with the grooved pipe part is integrally formed; It includes a socket pipe body formed integrally with a pipe socket part into which the joint end of the CPVC pipe enters and is joined, and a head socket part to be joined by entering the joint pipe part of the groove head,

The groove head is made of a metal molded body, and is connected by a metal pipe and a groove joint, and the socket pipe body, which is connected to the CPVC pipe by assembling the groove head, is made of a CPVC material, CPVC pipe and socket inserted into the pipe socket part The end connector of the CPVC pipe for connecting the groove joint, characterized in that the pipe body is bonded by bonding through the CPVC pipe and the CPVC adhesive, has been proposed.

With the proposal of the end connector of the CPVC pipe, it became possible to connect the CPVC pipe and the buried pipe with an earthquake-resistant structure.

However, since the end connector of the CPVC pipe is insert injection-molded for the pipe socket part in the socket pipe body made of a metal material, injection between the inner diameter surface of the socket pipe body made of metal and the outer diameter surface of the pipe socket part made of the CPVC material If the molding is unstable, leakage may occur.

That is, the inner diameter surface of the socket tube body and the outer diameter surface of the pipe socket part have a relationship configured to communicate with the hollow part through which the fluid moves due to the structural characteristics. There is a possibility of leakage between the inner diameter surface of the socket tube body and the outer diameter surface of the pipe socket part.

KR 10-2010-01333393 A KR 20-0213625 Y1 KR 10-2018-0020692 A

The object of the present invention devised to solve the above problems, CPVC It is conveniently installed at the joint end of the internal pipe of a material and promotes a stable connection between the internal pipe and the buried pipe through the grooved joint. Prevents the fluid moving along the hollow part from leaking to the outside to secure improved sealing stability,

In addition, by securing a separation joint state in which fluidity is secured between the buried pipe passing through the installation hole formed in the wall and the internal pipe made of CPVC (chlorinated PVC) connected to the inner end of the buried pipe, the installation hole formed in the wall CPVC pipe connection adapter for groove joints, which secures sealing stability to prevent damage to buried pipe and internal pipe while achieving minimization of the diameter of the installation hole and the sealed space between the installation hole and the buried pipe passing through the installation hole It is to provide a wall-penetrating type earthquake-resistant piping structure.

The above object is achieved by the following configuration provided in the present invention.

The CPVC pipe connection adapter for a groove joint with sealing stability according to the present invention is secured,

A pipe socket part communicating with the hollow part and entering the CPVC pipe is formed on one side, and an annular shoulder attachment groove in which the arch-shaped shoulder attachment end of the groove joint is attached in a stepped structure to the outer diameter of the other side, and the inner diameter surface of the ring gasket is in contact with the outer diameter a fitting body integrally formed with an assembly end having an annular sealing rim;

A hollow support bush formed on the outer diameter surface of the annular shoulder groove of the fitting body to reinforce the support strength of the annular shoulder groove to support the arcuate end of the groove joint entering the annular shoulder groove. .

Preferably, the hollow support part is formed by laminating on the outer diameter surface of the annular sealing rim and supports the inner and outer surfaces of the arcuate shoulder attachment end in a stepped structure on both sides of the outer diameter of the support pipe body supported on the inner diameter surface of the arcuate shoulder attachment end. It is composed of a hollow body formed by protruding annular annular support jaws.

More preferably, the hollow support bush is laminated on the outer diameter of the annular shoulder groove formed in the CPVC joint body by insert injection molding, and the hollow support made of a metal material at the assembly end of the insert injection-molded fitting body. The bush is configured to be formed by insert injection.

A CPVC adhesive layer made of a CPVC adhesive is formed between the inner diameter surface of the pipe socket part and the outer diameter surface of the CPVC pipe that enters the pipe socket part in the longitudinal direction and contacts the inner diameter surface of the pipe socket part.

On the other hand, the wall penetration type seismic piping structure according to the present invention,

an external pipe made of a metal material formed in the external space of the household; an internal pipe made of CPVC material formed in the internal space of the household; And it is installed through the installation hole of the wall dividing the internal space of the household and the external space of the household, and connects the joint end of the external pipe at one end and the internal pipe of the household at the other end, and includes a metal buried pipe,

A separation joint structure including a groove joint is formed between the inner joint end of the buried pipe and the joint end of the inner pipe,

An annular shoulder groove and sealing rim are integrally formed at the joint end of the buried pipe made of the metal material, and the CPVC pipe connection adapter for the groove joint according to the present invention is assembled at the joint end of the inner pipe made of the CPVC material. do it with

As described above, in the present invention, it is conveniently installed at the joint end of the inner pipe made of CPVC material, and connects the joint end of the buried pipe made of metal and the inner pipe made of CPVC material through a groove joint in a separate joint structure. We propose a CPVC pipe connection adapter for joints.

In particular, in the present invention, the CPVC pipe connection adapter is not separated and configured as a single joint, so that as the conventional groove head and the socket pipe are molded, the fluid moving along the hollow between the joint of the groove head and the socket pipe is external. The leakage problem can be fundamentally solved.

And, in the present invention, a hollow support bush made of a metal material is formed in the annular shoulder attachment groove formed at the assembly end of the fitting body through insert injection. It is stably supported in a stepped structure by a hollow support bush that is stacked on top and consequently, the joint coupling made of a metal material prevents the joint body made of CPVC from being physically deformed or damaged, so improved durability and sealing stability is ensured.

In addition, if a separation joint structure is formed in the wall-penetrating earthquake-resistant piping structure through the CPVC piping connection adapter for groove joints according to the present invention, even if the internal piping made of CPVC material connected to the buried piping flows during an earthquake, the gap between the buried piping and the internal piping Separation or damage is prevented, and the phenomenon that the buried pipe passing through the installation hole of the wall excessively flows in the installation hole and interferes with the inner wall of the installation hole is prevented. Interference between the buried pipe and the inner wall of the installation hole can be suppressed.

1 is a view showing the overall configuration of a through-wall seismic piping structure proposed as a preferred embodiment in the present invention,
2 is a view showing a CPVC pipe connection adapter for a groove joint that secures sealing stability, which is proposed as a preferred embodiment in the present invention;
3 is a view showing the detailed configuration of the hollow support in the CPVC pipe connection adapter for the groove joint, which has secured sealing stability, proposed as a preferred embodiment in the present invention;
4 to 6 show the state of the separation joint between the buried pipe and the internal pipe by applying the CPVC pipe connection adapter for a groove joint with sealing stability according to the present invention,
7 is a view showing the state of leakage of the end connector of the conventional CPVC pipe.

Hereinafter, with reference to the accompanying drawings, a CPVC pipe connection adapter for a groove joint with sealing stability, which is proposed as a preferred embodiment in the present invention, and a wall-penetrating earthquake-resistant pipe structure using the same will be described in detail.

1 shows the overall configuration of a through-wall seismic resistance piping structure proposed as a preferred embodiment in the present invention, and FIG. 2 is a CPVC pipe connection for a groove joint with sealing stability proposed as a preferred embodiment in the present invention. 3 shows the detailed configuration of a hollow support in the CPVC pipe connection adapter for a groove joint that has secured sealing stability, which is proposed as a preferred embodiment in the present invention, and FIGS. 4 to 6 are It shows the state of the separation joint between the buried pipe and the internal pipe by applying the CPVC pipe connecting adapter for the groove joint, which has secured sealing stability according to the present invention.

The seismic piping structure 1 in which the CPVC piping connection adapter 100 for the groove joint according to the present invention is installed, as shown in FIG. 1, includes an internal pipe 20 made of CPVC material formed in the internal space of the household; It penetrates the installation hole (H) of the wall (W) dividing the internal space of the household and the external space of the household and is disposed between the external space of the household and the internal space of the household. It includes a metal buried pipe 30 connecting the joint end 21 of the pipe 20 .

And, the outer joint end 31 of the buried pipe 30 is connected to an external pipe 10 made of a metal material, so that the external pipe 10 and the internal pipe 20 are embedded in the buried pipe 30 passing through the wall. communicated with each other by

The buried pipe 30 and the external pipe 10 are composed of a metal pipe body capable of plastic processing of the joint ends 11, 31, 32 through post-processing. 11b, 31b, 32b) and annular shoulder grooves 11a, 31a, and 32a formed by a grooving machine are respectively formed.

Accordingly, the joint end 11 of the external pipe 10 made of metal is connected to the outer joint end 31 of the buried pipe 30 exposed to the external space of the household through the groove joint 200, and the external pipe 10 ) and the buried pipe 30 form a mutually separated joint structure.

The groove joint 200 for connecting the pipes requiring the joint in a separate joint structure is a pair of joint couplings 210A that divide the joint ends of the opposite pipes as shown in FIGS. 4 to 6 , 210B); a ring gasket 220 disposed on the inner wall of the joint coupling (210A, 210B) to elastically surround and seal the joint portion of the pipe by the joint coupling (210A, 210B); and a compression bolt 230 for pulling the joint couplings 210A and 210B surrounding the joint end of the pipe.

And, on both sides of each of the joint couplings 210A, 210B, an arcuate shoulder attachment end 211 that is attached to the annular shoulder attachment groove 11a, 31a, 32a formed at the joint end of each pipe in a stepped structure is formed, respectively, A compression space 212 for accommodating the ring gasket 220 is formed between the shoulder attachment ends 211 .

The buried pipe 30 and the external pipe 10 according to this embodiment are made of a metal material that can be molded through a grooving machine, and the joint ends 11, 31, 32 are plastically processed to form a groove joint. By integrally forming the annular shoulder grooves 11a, 31a, 32a to which the joint couplings 210A, 210B of 200 are attached, the buried pipe 30 and the external pipe 10 are connected through the groove joint 200 They are connected to each other by forming a separate joint structure.

By the way, the inner pipe 20 connected to the inner joint end 32 of the buried pipe 20 made of a metal material is made of CPVC material unlike the buried pipe 30 made of a metal material, and the joint end portion through post-processing ( 21) plastic processing is difficult.

In addition, the joint end 21 of the inner pipe 20 requiring a joint with the inner joint end 32 of the buried pipe 30 and the joint end 21 of the buried pipe 30 because it is manufactured long through extrusion molding and cut to the length required on site for construction. It is practically difficult to form a groove for the connection of the groove joint 200 to the.

Of course, if the internal pipe 20 is injection molded to a unit length through CPVC, it is possible to form a groove in the joint end 21, but this is due to the construction characteristics of the pipe construction, which is cut and constructed to be suitable for productivity and field conditions in the field. It is not a fundamental solution.

In order to solve this problem, in the present invention, it is simply assembled to the joint end 21 of the inner pipe 20 made of CPVC material, and the inner joint end 32 and the inner pipe of the buried pipe 30 through the groove joint 200 A groove joint connector 100 for CPVC piping that implements the connection of the joint end 21 of (20) to a separate joint structure is proposed, and this is scheduled as a technical feature of the present invention.

The groove joint connector 100 for CPVC piping according to this embodiment communicates with the hollow part on one side as shown in FIGS. 2 to 6 and the CPVC pipe 20 such as an internal pipe enters the piping socket part 111 is formed, and the annular shoulder attachment groove 112a in which the arcuate shoulder attachment end 211 of the grooved joint 200 is attached in a stepped structure to the outer diameter of the other side, and the sealing inner diameter surface of the ring gasket 220 are in contact with the outer diameter to elastically close The assembly end 112 having an annular sealing rim 112b to be formed includes a joint body 110 integrally formed therewith.

The joint body 110 is composed of an injection-molded product made of the same CPVC material as the CPVC pipe 20, and the CPVC pipe enters in the longitudinal direction to the pipe socket part 111 formed in the fitting pipe 110 and is connected.

In this embodiment, a CPVC adhesive is applied between the inner diameter surface of the pipe socket part 111 and the outer diameter surface of the CPVC pipe 20, and the inner diameter surface of the pipe socket part 111 and the pipe socket part 111 are inserted. The outer diameter of the CPVC pipe 20 is stably sealed and fixed by the CPVC adhesive layer 130 made of CPVC adhesive.

And, in this embodiment, the hollow support bush 120 made of a metal material is formed on the outer diameter surface of the annular shoulder groove 112a constituting the assembly end 112 of the joint pipe body 110 made of the CPVC material to be laminated. Thus, by reinforcing the support strength of the annular shoulder attachment groove 112a, a stable support state of the arcuate shoulder attachment end 211 formed in the joint couplings 210A and 210B of the assembled groove joint 200 is secured.

Here, the hollow support bush 120 disposed in the annular shoulder groove 112a of the assembly end 112 formed in the joint pipe body 110 is made of brass, cast iron, etc. formed by casting molding, cutting molding, or die casting method. It consists of a metal molded product.

And, the hollow support bush 120 is formed by stacking on the outer diameter of the annular shoulder groove 112a formed in the joint pipe body 110 of CPVC material by insert injection molding, and insert injection molding of the fitting pipe body 110 Insert injection into the assembly end 122 is integrally formed.

In addition, the hollow support bush 120 is formed by laminating on the outer diameter surface of the annular shoulder attachment groove 112a as shown in FIG. 3, and is supported on the inner diameter surface of the arcuate shoulder attachment end 211. An annular support jaw 122 for supporting the inner and outer surfaces of the arcuate shoulder end 211 in a stepped structure is composed of a hollow body formed by protruding annularly.

Accordingly, the hollow support bush 120 made of the metal material is formed by laminating on the outer diameter of the annular shoulder attachment groove 112a formed in the joint pipe body 110 of CPVC material molded by insert injection as shown in FIGS. 5 and 6, and , as a result, the arcuate shoulder attachment end 211 formed in the groove joint 200 is stably supported in a stepped structure.

The CPVC pipe connection adapter 100 for the groove joint configured as described above is easily assembled to the joint end 21 of the inner pipe 20, which is a CPVC pipe disposed in the inner space of the household, and the inner joint end of the buried pipe 30 ( 32) and a groove 111a for forming a separation joint structure through a groove joint 200 at the joint end 21 of the inner pipe 20 requiring a joint.

The groove joint connector 100 is connected to the joint part 21 of the internal pipe 20 by inserting the joint part 21 of the internal pipe 20 into the pipe socket part 121, and at this time, the groove joint Since the socket pipe body 120 and the inner pipe 20 constituting the connector 100 are made of the same CPVC material, as shown in FIGS. 5 and 6 , a stable joint state through adhesion through the CPVC adhesive 130 to form

On the other hand, the construction process of the wall penetration type earthquake-resistant piping structure 1 adopting the groove joint connector 100 configured as described above is, in the installation hole H of the wall W, the groove 31a by a grooving machine. , 32a) is disposed to penetrate through the buried pipe 30 made of a metal material having joint ends 31 and 32 formed therein.

In the present invention, a fire-resistant filler (B) is filled in the installation hole (H) through which the buried pipe 30 passes, and between the outer diameter of the buried pipe 30 and the inner wall of the installation hole (H) by the fire-resistant filler (B). The formed void is sealed, and the resilient fixation of the buried pipe 30 is achieved by the elastic support action of the fire resistant filler (B).

In addition, the joint end 11 of the outer pipe 10 in which the groove 11a is formed by a grooving machine is provided at the outer joint end 31 of the buried pipe 30 in which the annular shoulder attachment groove 31a is formed. After they are in close contact with each other, they are joined in a mutually separated joint structure by a groove joint 200 .

In addition, after assembling the CPVC pipe connection adapter 100 for a groove joint according to the present invention to the joint end 21 of the inner pipe 20, the joint end 31 of the buried pipe 30 and the CPVC for the groove joint The pipe connection adapter 100 is connected in a mutually separated joint structure through the groove joint 200 .

That is, the joint end 21 of the inner pipe 20, which is the first CPVC pipe, is inserted into the pipe socket part 121 formed in the groove joint connector 100, and the pipe socket part 121 and the pipe socket part 121 are inserted. ) The socket tube body 120 inserted into the joint is bonded through the CPVC adhesive 130 .

Thereafter, the operator operates the CPVC pipe connection adapter 100 for a groove joint assembled to the joint end 21 of the inner pipe 20 and the inner joint end 32a of the buried pipe 30 in which the annular shoulder mounting groove 21a is formed. ) in an end-to-end form, and then separated through a groove joint 200 consisting of a ring gasket 220 and a pair of joint couplings 210A and 220B, and an inner pipe 20 made of CPVC material. ) and a metal material, forming a separation joint state between the buried pipe 30 penetrating the wall W.

At this time, the arcuate shoulder attachment end 211 formed in the groove joint 200 is stepped by the hollow support bush 120 stacked on the annular shoulder attachment groove 112A of the joint pipe body 110 as shown in FIGS. 5 to 6 . By stably supporting the structure, the joint coupling 210A, 210B made of a metal material prevents the fitting body 110 made of a CPVC material from being physically deformed or damaged.

And, the sealing inner diameter surface 221 of the ring gasket 220 disposed in the compression space 212 of the joint couplings 210A and 210B is a sealing rim formed at the assembly end 112 of the joint body 110 . It is in close contact with (112b) externally to ensure a stable sealing state between the internal pipe 20, which is a CPVC pipe, and the CPVC pipe connection adapter 100 for a groove joint.

In particular, the sealing rim 112b in close contact with the sealing inner surface 221 of the ring gasket 220 is integrally formed with the joint pipe body 110 made of CPVC material, and the groove joint 200 is compressed. Since a stable sealing state is formed with the joint body 110 through the ring gasket 220 disposed in the space 212, the sealing state is poor by the CPVC pipe connection adapter 100 for the groove joint, which causes water leakage. phenomenon can be prevented.

With this configuration, it is possible to connect the buried pipe 30 and the internal pipe 20, which are expected to be damaged in the event of an earthquake, with a separate joint structure in a state in which stable sealing properties are secured, because it is difficult to form a conventional separation joint. Thus, when an earthquake occurs, the buried pipe 30 penetrating the wall (W) and the internal pipe 20 formed in the internal space of the household are physically damaged or damaged to ensure seismic safety that can be prevented.

1. Through-wall seismic piping structure
10. External piping 11. Joint end
11a. Glove 11b. closed forest
20. Internal piping 21. Joint end
30. Buried piping 31. Outer joint end
31a. Annular shoulder groove 31b. closed forest
32. Inner seam end
32a. Annular shoulder groove 32b. closed forest
100. CPVC Pipe Connection Adapter for Groove Joints
110. Fitting body 111. Pipe socket part
112. Assembly end 112a. Annular shoulder groove
112b. closed forest
120. Hollow Support Bush 121. Support Pipe
122. Annular support jaw 130. CPVC adhesive layer
200. Groove joints 210A, 210B. joint coupling
211. Arched shoulder end 212. Compression space
220. Ring gasket 221. Sealing inner surface
230. Crimp bolt B. Fireproof filler
W. Wall H. Installer

Claims (5)

A pipe socket part communicating with the hollow part and entering the CPVC pipe is formed on one side, and an annular shoulder attachment groove in which the arch-shaped shoulder attachment end of the groove joint is attached in a stepped structure to the outer diameter of the other side, and the inner diameter surface of the ring gasket is in contact with the outer diameter a fitting body integrally formed with an assembling end having an annular sealing rim;
A hollow support bush formed on the outer diameter surface of the annular shoulder groove of the fitting body to reinforce the support strength of the annular shoulder groove to support the arcuate shoulder end of the groove joint that enters into the annular shoulder groove. CPVC pipe connection adapter for grooved joints with tight seal stability. According to claim 1, wherein the hollow support part is formed by laminating on the outer diameter surface of the annular sealing rim, both sides of the outer diameter of the support pipe body supported on the inner diameter surface of the arcuate shoulder attachment end, the inner surface and the outer surface of the arcuate shoulder attachment end has a stepped structure CPVC pipe connection adapter for grooved joints with sealing stability, characterized in that it consists of a hollow body formed by protruding annular annular support jaws supported by According to claim 2, wherein the hollow support part is formed by insert injection molding, laminated on the outer diameter of the annular shoulder groove formed in the CPVC joint pipe body, the insert injection molded hollow made of a metal material at the assembly end of the pipe body. A CPVC pipe connection adapter for a groove joint with sealing stability, characterized in that the support bush is formed by insert injection. The CPVC adhesive layer made of a CPVC adhesive is formed between the inner diameter surface of the pipe socket part and the outer diameter surface of the CPVC pipe that enters the pipe socket part in the longitudinal direction and makes external contact with the inner diameter surface of the pipe socket part. CPVC pipe connection adapter for grooved joints with tight sealing stability. an external pipe made of metal formed in the external space of the household; an inner pipe made of CPVC material formed in the inner space of the household; And it is installed through the installation hole of the wall dividing the internal space of the household and the external space of the household, and connects the joint end of the external pipe at one end and the internal pipe of the household at the other end, and includes a metal buried pipe,
A separation joint structure including a groove joint is formed between the inner joint end of the buried pipe and the joint end of the inner pipe,
An annular shoulder groove and a sealing rim are integrally formed at the joint end of the buried pipe made of the metal material, and the joint end of the inner pipe made of the CPVC material is for the groove joint according to any one of claims 1 to 4 Through-wall earthquake-resistant piping structure, characterized in that the CPVC piping connection adapter is assembled.

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