JP2016142521A - Full water test method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cover for a joint and a full water test method capable of preventing water leakage from a joint for piping even if water leakage from a tool for a full water test occurs.SOLUTION: A cover 1 for a joint is attached to a joint 100 for piping. The joint includes: an upper opening 110 communicable with an upper vertical pipe 102; a lower opening 112 communicable with a lower vertical pipe 104; and an insertion opening 114 into which a tool 130 for a full water test for blocking the upper opening 110 can be inserted. The cover 1 for the joint can block the insertion opening 114 by storing the tool 130 for the full water test and being attached to the insertion opening 114 of the joint 100 for piping in the state in which the upper opening 110 is blocked by the tool 130 for the full water test.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a joint cover used at the time of a full water test for inspecting leakage of piping disposed in a building, and a full water test method using the joint cover.

  Conventionally, in order to inspect the leakage of piping arranged in a building, a full water test is performed after part or all of piping work is completed. The full water test is a test for checking the presence or absence of water leakage by damming pipes at each level or several levels of the building and filling the test target pipes with water. In this full water test, conventionally, a pipe joint and a full water test jig are used to dam the pipe (Patent Documents 1 and 2).

  As shown in FIGS. 5 to 7, the conventional pipe joint 100 is a pipe joint member installed between an upper vertical pipe 102 and a lower vertical pipe 104 arranged along the vertical direction. is there. The pipe joint 100 is formed in a substantially cylindrical shape having an upper opening 110 communicating with the upper vertical pipe 102 and a lower opening 112 communicating with the lower vertical pipe 104, and a water filling test jig is provided on the side thereof. An insertion opening 114 for inserting the tool 130 therein is formed. The insertion opening 114 of the pipe joint 100 is closed by a lid 120 as shown in FIGS. 5 and 6 at a normal time other than the full water test. The lid body 120 includes a lid portion 122 that can close the insertion opening 114 and a pipe portion 124 that can form a pipe line in the joint main body 110. It is attached to the joint 100 via the seal member 111 and is removed from the pipe joint 100 during the full water test.

  As shown in FIG. 7, the conventional full water test jig 130 includes a closing lid portion 132 that can close the upper opening 110 of the piping joint 100 and an edge of the lower opening 112 of the piping joint 100. The base part 134 that can be placed on the base part 134 and a connecting part 136 that connects the closing lid part 132 and the base part 134 so that the distance between them can be adjusted. The closing lid portion 132 and the connecting portion 136 are formed with a channel capable of discharging the water in the upper vertical pipe 102 from the drain port 138 of the connecting portion 136, and the connecting portion 136 has an open state of the channel. An open / close lever 140 that can be switched between a closed state and a closed state is provided. The full water test jig 130 is attached to the pipe joint 100 only during the full water test, and is removed from the pipe joint 100 during normal times other than during the full water test.

  In the conventional full water test, first, a full water test jig is installed in the pipe joint 100 with the lid 120 removed from the pipe joint 100 installed between the upper vertical pipe 102 and the lower vertical pipe 104. 130 is installed, and the upper opening 110 of the pipe joint 100 is closed by the closing lid 132. Next, the upper vertical pipe 102 is filled with water, and the water level in the upper vertical pipe 102 is confirmed. Further, after a predetermined time has elapsed, the water level in the upper vertical pipe 102 is confirmed again. And if there is no change in these two confirmed water levels, it is determined that there is no water leakage, and if there is a change in the water level, it is determined that there is water leakage.

  On the other hand, the cover 120 is attached to the pipe joint 100 in a state where the full water test jig 130 is removed from the pipe joint 100 at normal times other than during the water full test. As a result, the insertion opening 114 of the pipe joint 100 is closed, and a pipe line communicating from the upper vertical pipe 102 to the lower vertical pipe 104 is formed in the pipe joint 100. , Function as part of the piping.

JP 10-317448 A JP 2000-80692 A

  However, in the conventional piping joint 100, the lid 120 is removed during the full water test, and the water supplied into the upper vertical pipe 102 is stopped only by the closing lid portion 132 of the full water test jig 130. . For this reason, for example, the displacement of the full water test jig 130, the wear or aging of the seal member 132a disposed on the closing lid portion 132 of the full water test jig 130, the adhesion of foreign matter to the seal member 132a, etc. Due to this, there is a possibility that a poor contact portion such as a gap is generated between the closing lid portion 132 and the upper opening 110, and water leakage may occur from this poor contact portion.

  When such a water leak occurs, water is discharged from the insertion opening 114 of the piping joint 100 and the installation site is submerged, which may cause damage to property at the installation site. There is. Further, in order to prevent the installation site from being flooded, it is conceivable to cure the vicinity of the installation location of the pipe joint 100 with a blue sheet or the like. There is a problem of cost.

  Accordingly, an object of the present invention is to provide a joint cover and a full water test method capable of preventing water leakage from a pipe joint even when water leakage occurs from a full water test jig. .

  In order to achieve the above object, a joint cover according to the present invention closes an upper opening that can communicate with an upper vertical pipe, a lower opening that can communicate with a lower vertical pipe, and the upper opening. A fitting cover to be attached to a pipe fitting having an insertion opening into which a full water test jig can be inserted, wherein the full water test jig is housed inside, and the full water test jig The insertion opening can be closed by being attached to the insertion opening of the pipe joint in a state where the upper opening is closed.

  The joint cover according to the present invention may include a cover main body configured to be able to close the insertion opening, and at least a part of the cover main body is attached to the insertion opening of the pipe joint. It is preferable to have transparency that allows the inside of the joint for piping to be visually recognized in a state.

  In addition, the joint cover according to the present invention may further include a drainage portion provided in the cover body and having a flow path penetrating the cover body, the drainage section being blocked from an open state of the flow path. It is preferable to have switching means capable of switching between states.

  Furthermore, the joint cover according to the present invention may further include a plurality of fixing members for fixing the cover main body to the insertion opening of the pipe joint, and the cover main body is attached to the fixing member. It is preferable that the position is configured to be adjustable according to the size of the insertion opening of the pipe joint.

  The full water test method according to the present invention is a full water test method performed using the joint cover described above, wherein the full water test jig is accommodated inside the pipe joint, and the full water test jig is used. A full water test is performed with the joint cover attached to the pipe joint in a state where the upper opening is closed by the pipe so that the insertion opening of the pipe joint is closed. To do.

  ADVANTAGE OF THE INVENTION According to this invention, even if it is a case where water leaks from the jig for a full water test, the cover for joints and the full water test method which can prevent the water leak from the joint for piping can be provided.

It is a perspective view which shows the joint cover which concerns on one Embodiment of this invention with the joint for piping, and the jig for a full water test. It is a front view showing a schematic structure of a joint cover according to the present embodiment. It is sectional drawing along the AA 'line of FIG. It is sectional drawing which shows the use condition of the joint cover which concerns on this embodiment. It is a perspective view which shows schematic structure of the conventional coupling for piping, and a cover body. It is sectional drawing which shows schematic structure of the coupling for conventional piping, and a cover body. It is sectional drawing which shows schematic structure of the coupling for conventional piping, and the jig for a full water test.

  Next, a joint cover according to an embodiment of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the joint cover 1 according to the present embodiment is a lid member that is used by being attached to the piping joint 100 in a state where a full water test jig 130 is installed during a full water test. In addition, since the pipe joint and the full water test jig used together with the joint cover 1 according to the present embodiment can use the conventional pipe joint 100 and the full water test jig 130 described above, the same reference numerals are used. As a result, detailed description of the contents overlapping with those already described will be omitted.

  As shown in FIGS. 1 and 4 to 7, the pipe joint 100 is a pipe joint member installed between an upper vertical pipe 102 and a lower vertical pipe 104 disposed along the vertical direction. It is. The pipe joint 100 closes the upper opening 110 that can communicate with the upper vertical pipe 102, the lower opening 112 that can communicate with the lower vertical pipe 104, and the upper opening 110 and the lower opening 112. Therefore, it is formed in a substantially cylindrical shape having an insertion opening 114 into which a full water test jig 130 can be inserted. The upper opening 110 is configured so that the lower end of the upper vertical pipe 102 can be inserted, and the lower opening 112 is configured so that the upper end of the lower vertical pipe 104 can be inserted.

  As shown in FIG. 4, a flange-like upper mounting seat 117 a that protrudes radially inward is formed on the inner wall of the pipe joint 100 at the height of the upper end of the insertion opening 114, and protrudes radially inward. A flange-like lower mounting seat 117b is formed at the height position of the lower end portion of the insertion opening 114. The diameters of the protruding edge portions of the upper mounting seat 117a and the lower mounting seat 117b are configured to be substantially the same as the inner diameters of the upper vertical pipe 102 and the lower vertical pipe 104. The lower mounting seat 117b serves as a seat portion for placing the full water test jig 130 inside the piping joint 100. The upper mounting seat 117a is pressed against the closing lid portion 132 of the full water test jig 130. It is comprised so that it may become a seat part. That is, the space between the upper mounting seat 117a and the lower mounting seat 117b is configured as a jig housing space 116 in which the full water test jig 130 is housed.

  As shown in FIG. 1, bolt holes 119 a to 119 d for fixing the lid 120 with the fixing bolt 30 are formed at the four corners of the peripheral portion 118, that is, at the peripheral portion 118 of the insertion opening 114 of the pipe joint 100. It is formed in the upper right corner, lower right corner, upper left corner and lower left corner, respectively.

  As shown in FIGS. 4 and 7, the full water test jig 130 includes a closing lid portion 132 capable of liquid-tightly closing the upper opening portion 110 by being pressed against the upper mounting seat 117a of the piping joint 100; The base part 134 which can be mounted on the lower attachment seat 117b of the joint 100 for piping is provided, and the connection part 136 which connects these obstruction | occlusion lid parts 132 and the base part 134 is provided.

  The closing lid portion 132 and the base portion 134 are each formed of a metal disk member having an outer diameter larger than the diameter of the protruding edge portion of the upper mounting seat 117a and the lower mounting seat 117b. A sealing member 132 a for ensuring liquid tightness is disposed on the upper surface of the closing lid portion 132. Further, when the closing lid portion 132 and the base portion 134 are accommodated in the jig accommodating space 116 of the piping joint 100, the closing lid portion 132 and the base portion 134 are moved away from each other by the connecting portion 136. The upper opening 110 is closed in a liquid-tight manner and the lower opening 112 is closed in a liquid-tight or non-liquid-tight manner.

  The connecting portion 136 is configured to change its axial length by rotating the nut portion 137 using a tool such as a wrench, thereby separating the closing lid portion 132 and the base portion 134 from each other. It can be moved in the direction of moving or approaching. Further, a drainage port (drainage nipple) 138 capable of discharging the water in the upper vertical pipe 102 is formed in the connecting portion 136, and the upper vertical pipe 102 and the drainage port 138 are formed in the closing lid portion 132 and the connecting portion 136. A flow path (drainage channel) is formed, and an opening / closing lever 140 for operating a valve body (not shown) for opening and closing the flow path is provided at the connecting portion 136.

  As shown in FIGS. 1 to 3, the joint cover 1 is provided in the cover main body 10 configured to close the insertion opening 114 of the pipe joint 100 and the cover main body 10, and penetrates the cover main body 10. A drainage section 20 having a flow path (not shown) and a plurality of fixing bolts (fixing members) 30 for fixing the four corners of the cover body 10 to the peripheral edge portion 118 of the insertion opening 114 of the piping joint 100 are provided. ing. As shown in FIG. 4, the joint cover 1 is inserted into the insertion opening 114 of the pipe joint 100 in a state where the upper opening 110 and the lower opening 112 are closed by the full water test jig 130. By being attached via the seal member 11 arranged around the portion 114, the inside of the pipe joint 100 can be sealed.

  Hereinafter, a specific configuration of the joint cover 1 will be described. Since the fixing bolt 30 can use various well-known bolt members having a threaded shaft portion and a head portion having a diameter larger than that of the shaft portion, description thereof is omitted. As the seal member 11, various known seal members can be used as long as the liquid-tightness between the peripheral edge 118 of the insertion opening 114 of the pipe joint 100 and the joint cover 1 can be secured. Therefore, the description thereof is omitted.

  As shown in FIGS. 2 and 3, the cover body 10 includes a transparent plate portion 12 made of a transparent plate member, an upper reinforcing plate portion 14 provided in the vicinity of the upper edge of the transparent plate portion 12, and a transparent plate portion. 12 and a lower reinforcing plate portion 16 provided in the vicinity of the lower end edge portion.

  The transparent plate portion 12 is a transparent plate member such as an acrylic plate member or the like, or a transparent laminated plate member obtained by laminating a plurality of such plate members, and is formed in a rectangular shape as shown in FIG. . The transparent plate portion 12 has a size capable of closing the insertion opening 114 of the pipe joint 100. Here, there are various types of pipe joints 100, such as pipe diameters of about 100 mm, pipe diameters of about 125 mm, and pipes of about 150 mm, and the insertion opening 114 depends on the type of pipe joint 100. The horizontal width dimensions of are different. The transparent plate part 12 according to the present embodiment has a size capable of closing the insertion opening 114 of the largest possible joint 100 for piping, for example, the insertion opening 114 of the piping joint 100 having a pipe diameter of about 150 mm. Have. In the present embodiment, the term “transparent” means that the interior of the piping joint 100 is transparent through the transparent plate portion 12.

  As shown in FIGS. 2 and 3, the upper reinforcing plate portion 14 and the lower reinforcing plate portion 16 are parallel to each other in the longitudinal direction on both side edges 14b, 14c, 16b, 16c of the long metal plate member. It is comprised from the metal plate member formed so that the shape bent at right angles, ie, the cross section of the direction orthogonal to a longitudinal direction may become U shape. As shown in FIG. 2, the upper reinforcing plate portion 14 and the lower reinforcing plate portion 16 have substantially the same length as the length of the transparent plate portion 12 in the width direction (left and right direction in FIG. 2) or a slightly shorter length. Have. The upper reinforcing plate portion 14 and the lower reinforcing plate portion 16 have the longitudinal direction parallel to the longitudinal direction of the transparent plate portion 12, and both end portions in the longitudinal direction are opposite to both end portions in the longitudinal direction of the transparent plate portion 12. The rear surfaces of the base portions 14a and 16a (surfaces opposite to the direction in which the side edge portions 14b, 14c, 16b, and 16c are bent) are attached to the surface of the transparent plate portion 12 (to the piping joint 100) so that they match. On the side facing the front). The upper reinforcing plate portion 14 and the lower reinforcing plate portion 16 have a function of reinforcing the transparent plate portion 12 so that the transparent plate portion 12 is not damaged or deformed by water pressure at the time of water leakage.

  As shown in FIGS. 1 and 2, the cover body 10 is formed with a pair of upper and lower right through holes 17 that are commonly used regardless of the type of the joint 100 for piping on one side in the longitudinal direction. On the other side of the direction, a plurality of left side through holes 18 a to 18 c that are appropriately selected and used according to the type of the pipe joint 100 are formed as a pair of upper and lower sides. The right side through hole 17 and the left side through holes 18a to 18c are through holes having a diameter through which the shaft portion of the fixing bolt 30 can be inserted and the passage of the head portion of the fixing bolt 30 can be restricted. 12 is formed in both the region where the upper reinforcing plate portion 14 is provided and the region where the lower reinforcing plate portion 16 of the transparent plate portion 12 is provided.

  The right through-hole 17 formed in the region where the upper reinforcing plate portion 14 of the transparent plate portion 12 is provided is connected to the bolt hole 119a formed in the upper right corner of the peripheral portion 118 of the insertion opening 114 of the piping joint 100. Correspondingly, the right through-hole 17 formed in the region where the lower reinforcing plate portion 16 of the transparent plate portion 12 is provided is formed in the lower right corner portion of the peripheral portion 118 of the insertion opening 114 of the pipe joint 100. This corresponds to the bolt hole 119b. The pair of upper and lower right through-holes 17 is a through-hole used when the cover 1 for fitting is attached to the insertion opening 114 of the joint 100 for piping using the fixing bolt 30 regardless of the type of the joint 100 for piping. (Bolt hole).

  The left through holes 18a to 18c are a plurality of through holes arranged at predetermined intervals along the longitudinal direction of the cover body 10, and in the present embodiment, the first left through hole 18a, the second left through hole 18b, It is comprised from the 3rd left side through-hole 18c. The plurality of left-side through holes 18 a to 18 c are inserted into the joint cover 1 according to the type of the pipe joint 100 when the fixing cover 30 is attached to the insertion opening 114 of the pipe joint 100 using the fixing bolt 30. A through hole (any one of the first left through hole 18a, the second left through hole 18b, and the third left through hole 18c) that matches the size of the opening 114 is selected and used. The number of the left through holes 18a to 18c can be the same as the number of types of width dimensions of the horizontal direction of the assumed insertion opening 114.

  The first left through hole 18a is a through hole formed at a position closest to the right through hole 17 in the longitudinal direction among the left through holes 18a to 18c. That is, the first left through-hole 18a in the present embodiment is the smallest width among the types of width dimensions in the horizontal direction of the insertion opening 114 in which the piping joint 100 to be attached to the joint cover 1 is assumed. This is a through hole (bolt hole) used in the case of having a dimension (for example, a pipe joint 100 having a pipe diameter of about 100 mm). Specifically, the first left through-hole 18a formed in the region where the upper reinforcing plate portion 14 of the transparent plate portion 12 is provided is a peripheral portion 118 of the insertion opening 114 in the relatively small pipe joint 100. Corresponding to the bolt hole 119c formed in the upper left corner of the first left through hole 18a formed in the region where the lower reinforcing plate portion 16 of the transparent plate portion 12 is provided is a relatively small joint for piping. 100 corresponds to the bolt hole 119d formed at the lower left corner of the peripheral edge 118 of the insertion opening 114.

  The second left side through hole 18b is a through hole formed at a position farther in the longitudinal direction than the first left side through hole 18a with respect to the right side through hole 17. That is, the second left side through-hole 18b in the present embodiment is a medium of the types of width dimensions in the horizontal direction of the insertion opening 114 in which the pipe joint 100 to be attached to the joint cover 1 is assumed. This is a through hole (bolt hole) used in the case of a width dimension (for example, a pipe joint 100 having a pipe diameter of about 125 mm). Specifically, the second left through-hole 18b formed in the region where the upper reinforcing plate portion 14 of the transparent plate portion 12 is provided is a peripheral portion 118 of the insertion opening 114 in the relatively medium-sized piping joint 100. Corresponding to the bolt hole 119c formed in the upper left corner of the second left through hole 18b formed in the region where the lower reinforcing plate portion 16 of the transparent plate portion 12 is provided is a relatively medium-sized pipe joint 100 corresponds to the bolt hole 119d formed at the lower left corner of the peripheral edge 118 of the insertion opening 114.

  The third left through hole 18c is a through hole formed at a position farthest in the longitudinal direction from the right through hole 17 among the left through holes 18a to 18c. That is, the third left through-hole 18c in the present embodiment is the largest width among the types of width dimensions in the horizontal direction of the insertion opening 114 in which the piping joint 100 to be attached to the joint cover 1 is assumed. This is a through hole (bolt hole) used in the case of a dimension (for example, a pipe joint 100 having a pipe diameter of about 150 mm). Specifically, the third left through hole 18c formed in the region where the upper reinforcing plate portion 14 of the transparent plate portion 12 is provided is the peripheral portion 118 of the insertion opening 114 in the relatively large piping joint 100. The third left through-hole 18c formed in the region where the lower reinforcing plate portion 16 of the transparent plate portion 12 is provided corresponding to the bolt hole 119c formed in the upper left corner of the 100 corresponds to the bolt hole 119d formed at the lower left corner of the peripheral edge 118 of the insertion opening 114.

  As shown in FIGS. 1 to 3, the drainage part 20 includes a discharge pipe part 22 provided through the transparent plate part 12, a valve body (not shown) embedded in the discharge pipe part 22, a valve And an open / close lever 24 for switching between an open state and a shut-off state of the body, and configured to be able to discharge water leaked from the full water test jig 130 to the inside of the pipe joint 100 (the jig housing space 116). Has been. The valve body and the opening / closing lever 24 may be any appropriate switching means that can switch between the open state and the shut-off state of the flow path of the discharge pipe portion 22, and various known ones can be used. Description is omitted.

  The discharge pipe portion 22 is a metal cylindrical member formed in a substantially cylindrical shape, and one end projects to the front side (right side in FIG. 3) of the transparent plate portion 12 and the other end is the back side of the transparent plate portion 12. The transparent plate portion 12 is disposed so as to protrude to the left (in FIG. 3, the left side), and a midway portion in the longitudinal direction is fixed to the transparent plate portion 12. That is, when the joint cover 1 is attached to the pipe joint 100, the discharge pipe portion 22 forms a flow path that allows the inside (the jig housing space 116) of the pipe joint 100 to communicate with the outside. It is configured. A valve body is provided in the flow path extending to the front side of the transparent plate portion 12, and by operating the valve body with the opening / closing lever 24, the open state and the shut-off state of the flow path can be switched. It is configured. The discharge pipe portion 22 is located at a position below the intermediate portion in the vertical direction of the transparent plate portion 12, preferably the lower end portion of the insertion opening 114 when the joint cover 1 is attached to the pipe joint 100. It is provided at a position that will be located slightly above the height position.

  The joint cover 1 having the above configuration has a full water test jig 130 in the pipe joint 100 installed between the upper vertical pipe 102 and the lower vertical pipe 104 arranged along the vertical direction. Is inserted into the insertion opening 114 of the pipe joint 100 in a full water test carried out in a state where the pipe from the upper vertical pipe 102 to the lower vertical pipe 104 is closed by the full water test jig 130. It is what is used.

  Specifically, the water filling test method performed using the joint cover 1 according to the present embodiment is first performed from the pipe joint 100 installed between the upper vertical pipe 102 and the lower vertical pipe 104 to the lid 120. The full water test jig 130 is installed in the pipe joint 100 in a state where the pipe joint 100 is removed, the upper opening 110 of the pipe joint 100 is closed by the closing lid part 132, and the pipe part 100 of the pipe joint 100 is closed by the base part 134. The lower opening 112 is closed.

  Next, the joint cover 1 is attached to the pipe joint 100 in this state via the seal member 11 with the fixing bolt 30 so that the insertion opening 114 is closed. At this time, one of the first through third left through holes 18a to 18c is selected according to the size of the insertion opening 114 of the pipe joint 100 to be attached, and the fixing bolt 30 is attached. Further, the open / close lever 24 of the drainage section 20 is operated so that the flow path of the discharge pipe section 22 is cut off. In this way, the upper opening 110 and the lower opening 112 of the pipe joint 100 are closed by the closing lid part 132 and the base part 134 of the full water test jig 130, and the pipe joint 100 is inserted by the joint cover 1. By closing the opening 114, the internal space (the jig housing space 116) of the pipe joint 100 is sealed.

  Next, the upper vertical pipe 102 is filled with water, and the water level in the upper vertical pipe 102 is confirmed. Further, after a predetermined time has elapsed, the water level in the upper vertical pipe 102 is confirmed again. And if there is no change in these two confirmed water levels, it is determined that there is no water leakage, and if there is a change in the water level, it is determined that there is water leakage.

  Further, in the process of the full water test, as shown in FIG. 4, water leaks from the poorly adhered portion between the closing lid portion 132 and the upper opening portion 110, and the inside of the pipe joint 100 (sealed jig) When water accumulates in the accommodation space 116), drainage from the inside of the joint 100 for piping is performed. Specifically, a drainage hose 142 is connected to the discharge pipe portion 22, and the discharge port of the drainage hose 142 is guided to a place where it can be drained safely, and then the open / close lever 24 of the drainage portion 20 is operated. Then, the flow path of the discharge pipe portion 22 is opened. Thereby, the water collected inside the piping joint 100 can be drained safely.

  After the full water test is completed, as shown in FIG. 7, the joint cover 1 is removed from the pipe joint 100, and a drain hose 142 is connected to the drain port (drain nipple) of the full water test jig 130. Then, after the discharge port of the drainage hose 142 is guided to a place where the drainage can be safely drained, the open / close lever 140 of the full water test jig 130 is operated to open the flow path of the full water test jig 130. To do. Thereby, the water accumulated in the upper vertical pipe 102 can be drained safely.

  Then, after the full water test and the drainage treatment are completed, the lid 120 is attached to the pipe joint 100 with the full water test jig 130 removed from the pipe joint 100. As a result, the insertion opening 114 of the pipe joint 100 is closed, and a pipe line communicating from the upper vertical pipe 102 to the lower vertical pipe 104 is formed in the pipe joint 100. , Function as part of the piping.

  As described above, the joint cover 1 according to the present embodiment includes the upper opening 110 that can communicate with the upper vertical pipe 102, the lower opening 112 that can communicate with the lower vertical pipe 104, and at least the upper opening. 1 is a joint cover 1 attached to a pipe joint 100 having an insertion opening 114 into which a full water test jig 130 for closing 110 can be inserted, and the full water test jig 130 is accommodated therein. The insertion opening 114 can be closed by being attached to the insertion opening 114 of the pipe joint 110 in a state where at least the upper opening 110 is closed by the full water test jig 130.

  According to such a joint cover 1, tentatively, a poor contact portion such as a gap is generated between the closing lid portion 132 of the full water test jig 130 and the upper opening portion 110 of the piping joint 100, and this poor contact. Even when water leaks from the site, the insertion opening 114 of the pipe joint 100 is liquid-tightly closed by the joint cover 1, so that water leak from the pipe joint 100 can be prevented. Thereby, since the installation site is not flooded, it is possible to prevent damage to property and the like at the installation site. Further, since the leakage from the piping joint 100 can be prevented by only a simple operation of attaching the joint cover 1 to the insertion opening 114 of the piping joint 100, the working time, work labor and cost can be reduced. Can do. Furthermore, since the joint cover 1 according to the present embodiment can be attached to the existing piping joint 100, only the joint cover 1 according to the present embodiment is added without changing the existing equipment. Since the leakage preventing effect can be exhibited, the introduction cost can be suppressed.

  Further, the joint cover 1 according to the present embodiment includes a cover main body 10 configured to be able to close the insertion opening 114, and at least a part of the cover main body 10 (in this embodiment, the upper reinforcing plate portion 14 and The cover body 10 except for the lower reinforcing plate portion 16 has transparency that allows the inside of the pipe joint 100 to be visually recognized in a state where the cover main body 10 is attached to the insertion opening 114 of the pipe joint 100. For this reason, according to the joint cover 1 according to the present embodiment, it is possible to visually check the leakage state in the pipe joint 100 only by a simple configuration in which at least a part of the cover body 10 is transparent. It becomes possible.

  Furthermore, the joint cover 1 according to the present embodiment further includes a drainage part 20 provided on the cover body 10 and having a flow path penetrating the cover body 10, and the drainage part 20 is blocked from the open state of the flow path. Switching means (valve body and opening / closing lever 24) capable of switching between states is provided. For this reason, according to the joint cover 1 according to the present embodiment, the water inside the pipe joint 100 is drained even when water accumulates inside the pipe joint 100 due to water leakage from the poorly adhered portion. It becomes possible to discharge through the unit 20.

  Furthermore, the joint cover 1 according to the present embodiment is configured such that the cover body 10 can adjust the mounting position of the fixing bolt (fixing member) 30 according to the size of the insertion opening 114 of the piping joint 100. Therefore, it can respond to various kinds of joints 100 for piping.

  The joint cover and the full water test method according to the present invention are not limited to the above-described embodiments, and various modifications can be made without departing from the technical idea of the present invention.

  For example, in the above-described embodiment, the joint cover 1 has been described as including the cover body 10, the drainage unit 20, and the plurality of fixing bolts 30. However, the present invention is not limited thereto, and the full water test jig 130 is provided inside. The insertion opening 114 can be closed by being accommodated and attached to the insertion opening 114 of the pipe joint 100 in a state where the upper opening 110 is closed by the full water test jig 130. Any configuration may be used.

  In the above-described embodiment, the cover body 10 includes the transparent plate portion 12 that is transparent as a whole, the upper reinforcing plate portion 14 and the lower reinforcing plate portion 16 that reinforce the transparent plate portion 12, and the upper reinforcing plate portion. Although the description has been given assuming that substantially the entire cover main body 10 excluding 14 and the lower reinforcing plate portion 16 has transparency, the present invention is not limited to this. For example, the cover main body 10 may be formed of a member having no transparency such as a metal plate member, and a window portion may be formed in a part thereof so that the inside of the pipe joint 100 can be visually recognized. . In addition, for example, in the case where a notification means for notifying when water leakage in the piping joint 100 is detected, a display means for detecting and displaying the water level inside the piping joint 100, etc., are provided. The whole structure may not have transparency. In addition, when these alerting | reporting means and a display means are provided, you may further provide the transmission means which transmits water leak generation information to the portable terminal etc. which an operator hold | maintains, for example.

  Furthermore, in the above-described embodiment, the drainage unit 20 is provided in the cover body 10, and the drainage unit 20 has switching means (valve body and opening / closing lever 24) that can switch between the open state and the shut-off state of the flow path. Although described as a thing, it is not limited to this. For example, when a safe drainage situation is ensured, such as when a drainage hose or the like is always connected to the discharge port of the drainage unit 20, the switching means may not be provided. Further, when water leaking from the poorly contacted portion into the pipe joint 100 can flow out to the lower vertical pipe 104 via the base part 134 of the full water test jig 130, the water is drained into the cover body 10. A configuration in which the portion 20 is not provided may be employed.

  Furthermore, in the above-described embodiment, a plurality of through holes for attaching the fixing bolt 30 to the cover body 10 are formed, so that the fixing bolt 30 is attached according to the size of the insertion opening 114 of the piping joint 100. However, the present invention is not limited to this. For example, by forming at least one of the right side through hole and the left side through hole formed in the cover main body 10 into a long hole shape extending along the longitudinal direction of the cover main body 10, the insertion opening 114 of the pipe joint 100 is formed. The mounting position of the fixing bolt 30 may be configured to be adjustable according to the size.

  Further, the pipe joint to which the joint cover according to the present invention is attached and the full water test jig used for the pipe joint are not limited to the pipe joint 100 and the full water test jig 130 described above. .

  That is, the pipe joint includes an upper opening 110 that can communicate with the upper vertical pipe 102, a lower opening 112 that can communicate with the lower vertical pipe 104, and a full water test treatment for closing the upper opening 110. Any configuration may be used as long as it has an insertion opening 114 into which the tool 130 can be inserted.

  Further, the full water test jig may be provided with any configuration as long as it is accommodated inside the pipe joint and can close the upper opening of the pipe joint from the inside of the pipe joint. . For example, in the above-described embodiment, the full water test jig 130 configured to drain from the drain port (drain nipple) 138 provided in the connecting portion 136 is illustrated, but the embodiment is not limited thereto. The full water test jig is formed with, for example, a flow path penetrating through the closing lid portion 132, the connecting portion 136, and the base portion 134, and the water in the upper vertical pipe 102 is passed through the flow path to the lower vertical pipe 104. It is also possible to use one that can be drained. Further, in the above-described embodiment, the base portion 134 of the full water test jig 130 is formed of a metal disk member, and the lower opening 112 of the pipe joint 100 is configured to be able to be closed. However, the present invention is not limited to this, and the base portion 134 can adopt various shapes as long as it can function as a base, and does not close the lower opening 112 of the pipe joint 100. Also good.

  1 Joint cover, 10 Cover body, 20 Drain part, 100 Pipe joint, 102 Upper vertical pipe, 104 Lower vertical pipe, 110 Upper opening, 112 Lower opening, 114 Insertion opening, 130 Water filling test Ingredients

Claims (5)

An upper opening that can communicate with the upper vertical pipe, a lower opening that can communicate with the lower vertical pipe, and an insertion opening into which a full water test jig for closing the upper opening can be inserted. A joint cover to be attached to a pipe joint,
The full water test jig is housed inside, and the insertion opening is closed by being attached to the insertion opening of the pipe joint in a state where the upper opening is closed by the full water test jig. The joint cover is characterized by being configured. A cover body configured to be able to close the insertion opening;
2. The joint according to claim 1, wherein at least a part of the cover main body has transparency so that an inside of the pipe joint can be visually recognized in a state of being attached to the insertion opening of the pipe joint. Cover. A drainage part provided in the cover body and having a flow path penetrating the cover body;
The joint drain cover according to claim 2, wherein the drainage unit includes switching means capable of switching between an open state and a shut-off state of the flow path. A plurality of fixing members for fixing the cover body to the insertion opening of the pipe joint;
4. The joint cover according to claim 2, wherein the cover body is configured to be capable of adjusting a mounting position of the fixing member according to a size of the insertion opening of the pipe joint. . A water fullness test method using the joint cover according to any one of claims 1 to 4,
The filling joint is accommodated in the piping joint, and the insertion opening of the piping joint is formed in the piping joint in a state where the upper opening is closed by the filling test jig. A full water test method, wherein the full water test is performed with the joint cover attached so as to be closed.

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