JP2018159566A - Leakage water testing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a leakage water testing apparatus capable of easily and visually displaying a result of a leakage water test while having a simple structure.SOLUTION: A leakage water testing apparatus 100 inspects water leakage of an inspection object by measuring a change with time of the water level in a stored inspection object. The leakage water testing apparatus comprises a support body 110 attached to the inspection object, and a movable body 120 movably supported on the support body 110 in a vertical direction. The movable body 120 disposed in a floating state in a water surface or water in the inspection object, includes: a float portion 121 moving up and down in accordance with a change in a water level; an extending portion 122 extending upward from the float portion 121; and a water level indicator 123 formed on the extending portion 122 at a position higher than the water surface in a state where the support body 110 is attached to the inspection object, for displaying a relative position change of the movable body 120 with respect to the support body 110.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a water leakage test apparatus for inspecting water leakage of an inspection object.

  Conventionally, a water leakage test apparatus has been used to inspect the presence or absence of water leakage in inspection objects including stored pipes, drainage systems, toilets, baths, basins, and the like.

  For example, Patent Document 1 discloses a full water tester for inspecting the presence or absence of water leakage in a building drainage system pipe by measuring a change in the water level in a branch pipe connected to the drainage system pipe of the building. Hereinafter, the reference numerals of Patent Document 1 are shown in parentheses. The full water tester (5) of Patent Document 1 includes a float part guide (6), a float part (7), an infrared sensor (8), positioning means (10), and a housing (11). The float guide (6) has a cylindrical shape like the branch pipe (4), and is inserted into the branch pipe (4) below the water surface when the full water tester (5) is installed in the branch pipe (4). Is done. The float part (7) has a cylindrical shape with a hemispherical bottom, and is placed in the float part guide (6) before the full water tester (5) is installed in the branch pipe (4). It slides up and down along the float guide (6) according to the change of the water level in the pipe (4). The infrared sensor (8) is disposed above the float part (7), and measures the vertical position of the float part (7) by reflecting infrared rays on the reflective surface of the float part (7) during the test. .

JP 2013-053913 A

  However, since the full water tester (leakage test apparatus) of Patent Document 1 measures the water level in the branch pipe through the float part by the infrared sensor, it is inevitable that the structure becomes complicated. In this full water tester, since the float part moves up and down in the branch pipe, the state of the float part is not exposed to the outside. Therefore, it is difficult for the user to visually confirm whether or not the position of the float portion has changed from the outside, and the user cannot know at a glance the result of the water leakage test.

  An object of the present invention is to provide a water leakage test apparatus that has a simple structure and easily displays the result of a water leakage test visually.

The water leakage test apparatus according to claim 1, wherein the water leakage test apparatus inspects the water leakage of the inspection object by measuring a change over time of the water level in the stored inspection object,
A support attached to the inspection object;
A movable body supported movably in the vertical direction on the support body,
The movable body is
A float unit that is arranged in a state of floating in the water surface or water in the inspection object, and moves up and down according to a change in water level,
An extending part extending upward from the float part;
A water level display unit that is formed in the extended portion at a position higher than the water surface in a state where the support is attached to the inspection object, and displays a relative position change of the movable body with respect to the support. It is characterized by providing.

  The water leakage test apparatus according to claim 2 is the water leakage test apparatus according to claim 1, wherein the water level display unit is vertically moved according to the float unit at a position higher than an opening end of the inspection object opened upward. It is comprised so that it may move.

  The water leakage test apparatus according to claim 3 is the water leakage test apparatus according to claim 1 or 2, wherein the support includes a reference unit that displays a relative position of the water level display unit to the support at an initial water level. It is provided, The position change amount of the water level display part with respect to the reference part shows the change amount of the water level.

  The water leak test apparatus according to claim 4 is the water leak test apparatus according to claim 3, wherein the support includes a standing part extending along a vertical direction, and the reference part is the standing part. And a sliding body that is slidably held along the surface.

  The water leakage test apparatus according to claim 5 is the water leakage test apparatus according to claim 3 or 4, wherein the support includes a standing portion extending in a vertical direction, and the reference portion is the vertical portion. It is characterized by having a mark attached to the installation part.

  The water leakage test apparatus according to claim 6 is the water leakage test apparatus according to claim 4 or 5, wherein the standing part interpolates the extension part and the water level display part, and the extension part and the water level A hollow cylindrical wall that guides the vertical movement of the display unit is provided, and the water level display unit is visible from the outside through the cylindrical wall.

The water leakage test apparatus according to claim 7 is the water leakage test apparatus according to any one of claims 1 to 6, wherein the inspection object is a piping structure having a vertical pipe that opens upwardly.
The support includes a pipe attachment portion attached to an opening end of the vertical pipe, and the pipe attachment portion abuts on an inner peripheral surface or an outer peripheral surface around the opening of the vertical pipe, It is configured to restrict movement in the direction of the opening surface with respect to the opening.

  The water leakage test apparatus according to claim 8 is the water leakage test apparatus according to any one of claims 1 to 7, wherein the support is a bar that extends over an opening of the inspection object that opens upward. It is characterized by comprising a bar material attaching part attached to the material.

  According to the water leakage test apparatus of claim 1, the support is attached so as to be stationary with respect to the inspection object, while the movable body is relatively moved in the vertical direction with respect to the support and the inspection object. Is possible. Further, the movable body includes a water level display portion formed at an extended portion that extends upward from the float portion at least at a position higher than the water level. And, with the support attached to the inspection object, the water level display unit displays the relative position change of the movable body relative to the support, thereby measuring the water level change over time in the inspection object. it can. That is, since the water level display unit displays the positional relationship with the support at the position away from the surface of the water or the float unit that floats in the water, the user can visually check whether the position of the float unit has changed from the outside. It became easy to grasp. Therefore, the water leakage test apparatus of the present invention easily displays the result of the water leakage test visually while having a simple structure.

  According to the water leakage test apparatus of the second aspect, in addition to the effect of the invention of the first aspect, the water level display unit is arranged at a position higher than the opening end of the inspection object opened upward, Furthermore, it is easier for the user to visually determine whether or not the position of the float portion has changed from the outside.

  According to the water leakage test apparatus of claim 3, in addition to the effect of the invention of claim 1 or 2, the reference part displays the relative position of the water level display part to the support at the initial water level, so that after time, By comparing the reference part and the water level display part, the user can easily grasp the presence or absence of the position change of the float part and the water level change amount by visual observation.

  According to the water leakage test apparatus of claim 4, in addition to the effect of the invention of claim 3, by sliding the sliding body along the vertically extending part, the water level display part at the initial water level The position of the reference portion can be changed according to the position. Thereby, by comparing the water level display part with the reference part, it is possible to easily grasp the change in the vertical position relative to the reference part of the water level display part.

  According to the water leakage test apparatus of the fifth aspect, in addition to the effect of the invention of the third or fourth aspect, with reference to the mark attached to the standing part extending vertically, the relative water level display part Therefore, it is possible to easily grasp the vertical position change.

  According to the water leakage test apparatus of the sixth aspect, in addition to the effect of the invention of the fourth or fifth aspect, the vertical movement of the movable body is guided by the hollow cylindrical wall, so that the movable body according to the water level change is Operation is stable.

  According to the water leakage test apparatus of the seventh aspect, in addition to the effect of the invention of any one of the first to sixth aspects, the support is attached to the opening end of the vertical pipe via the pipe attachment part. Thereby, the movement to the direction of the opening surface with respect to the opening part of a support body can be controlled, and position shift can be prevented.

  According to the water leakage test apparatus of the eighth aspect, in addition to the effect of the invention of any one of the first to seventh aspects, the support body is bridged over the opening of the inspection object via the bar material attaching section. Can be attached to bar material.

BRIEF DESCRIPTION OF THE DRAWINGS (a) The schematic perspective view seen from the front of the water leak test apparatus of one Embodiment of this invention, (b) The schematic perspective view seen from the back surface. The (a) top view, (b) front view, (c) bottom view, and (d) side view of the water leakage test apparatus of FIG. FIG. 3 is a cross-sectional view taken along the line AA of the water leakage test apparatus in FIG. 2. BB sectional drawing of the water leak test apparatus of FIG. CC sectional drawing of the water leak test apparatus of FIG. The schematic perspective view which shows the vertical piping which installed the water leak test apparatus of one Embodiment of this invention. The front view of the vertical piping of FIG. It is DD sectional drawing of the vertical piping of FIG. 7, and shows the state at the time of a water leak test start. FIG. 8 is a cross-sectional view of a state where water leakage is detected by a water leakage test apparatus after lapse of time in the vertical pipe of FIG. 7. The schematic perspective view which shows the toilet bowl which installed the water leak test apparatus of one Embodiment of this invention. It is sectional drawing of the toilet bowl of FIG. 9, and shows the state at the time of a water leak test start. FIG. 11 is a cross-sectional view of the toilet of FIG. 10 in a state in which water leakage is detected by a water leakage test apparatus after a lapse of time. Schematic which shows the modification of the water leak test apparatus of this invention. Schematic which shows the modification of the water leak test apparatus of this invention.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In addition, the shape of each figure referred in the following description is a conceptual diagram or a schematic diagram for explaining a suitable shape dimension, and a dimension ratio etc. do not necessarily correspond with an actual dimension ratio. That is, the present invention is not limited to the dimensional ratio in the drawings.

  The water leakage test apparatus 100 according to the present embodiment is attached to an inspection object including a stored pipe, drainage system, toilet, bath, basin, and the like, and measures the change over time of the water level to thereby detect the inspection object. The presence or absence of water leakage is tested. In the present embodiment, the inspection object is exemplified as a drainage system (or its vertical piping) and a toilet. Hereinafter, with reference to FIG. 1 thru | or FIG. 4, the structure of the water leak test apparatus 100 of one Embodiment of this invention is demonstrated in detail.

  FIGS. 1A and 1B are schematic perspective views from the front and back of the water leakage test apparatus 100. 2A to 2D are a plan view, a front view, a bottom view, and a side view of the water leakage test apparatus 100. FIG. 3, 4, and 5 are an AA sectional view, a BB sectional view, and a CC sectional view of the water leakage test apparatus 100.

  As shown in FIGS. 1 and 2, the water leakage test apparatus 100 includes a support body 110 attached to an inspection object, and a movable body 120 movably supported on the support body 110 in the vertical direction. The support body 110 and the movable body 120 are separate bodies and are in a relative movable relationship with each other.

  The support 110 is arranged in a stationary state with respect to the inspection object, and is configured to support the movable body 120 so as to be movable relative to the inspection object. The support 110 includes a base portion 111 extending in the horizontal direction and a standing portion 112 extending from the approximate center of the upper surface of the base portion 111 and extending in the vertical (vertical) direction.

  The base 111 is formed as a substantially rectangular flat plate in plan view. And this base 111 is comprised so that it may be arrange | positioned on the opening part of a test object. The standing portion 112 includes a hollow cylindrical wall 113 having a predetermined length and extending vertically in a cross-sectional view, and a bottom wall 114 formed at the lower end of the cylindrical wall 113. The cylindrical wall 113 has a flat surface portion on the front and both side surfaces, and a curved surface portion on the back surface side. The plane portion on the front side of the cylindrical wall 113 projects in a flange shape on both sides. Further, the cylindrical wall 113 has a cross-sectional area that can accommodate a part of the movable body 120 (the extended portion 122 and the water level display portion 123). The cylindrical wall 113 is formed of a transparent or translucent synthetic resin, and encloses the movable body 120 so as to be visible from the outside. Furthermore, a protruding wall 113a extending in the width direction is formed to protrude from the upper end of the front side plane portion of the cylindrical wall 113. As shown in FIGS. 3 and 4, the upper end of the cylindrical wall 113 is open, and a through hole 114 a is formed in the approximate center of the bottom wall 114 at the lower end.

  A sliding body 115 is held on the cylindrical wall 113 so as to be slidable along the standing portion 112. That is, the sliding body 115 is slidably inserted in the vertical direction on the cylindrical wall 113 of the standing portion 112 and is maintained (still) in place so as not to fall freely due to gravity. The sliding body 115 functions as a reference unit that displays a relative position of the movable body 120 (water level display unit 123) with respect to the support 110 at an initial water level (an initial stage or a full water level). As will be described later, the position change amount of the water level display unit 123 with respect to the reference portion indicates the change amount of the water level. Specifically, as shown in FIG. 5, the sliding body 115 is an annular body having a shape corresponding to the outer peripheral shape of the cylindrical wall 113. A plurality of (four) protrusions 115 a extending in the vertical direction are provided on the inner peripheral surface of the sliding body 115. A frictional force is generated between the sliding body 115 and the cylindrical wall 113 by the plurality of protrusions 115 a coming into contact with the inner peripheral surface of the cylindrical wall 113. The sliding body 115 is slidably held at a predetermined height on the cylindrical wall 113 by this frictional force. A substantially semi-circular window 116 is cut out on the front surface of the sliding body 115. It is possible to visually recognize the inside of the cylindrical wall 113 through the window 116.

  On the lower surface of the base 111, a pipe attachment 117 is provided that is attached to the opening end of the vertical pipe P (see FIG. 6), which is a part of the inspection object. The pipe attachment portion 117 is configured to abut on the inner peripheral surface or the outer peripheral surface around the opening portion of the vertical pipe, and to restrict movement in the direction of the opening surface with respect to the opening portion. Specifically, the pipe attachment portion 117 is formed by arc walls facing each other at a distance corresponding to the pipe diameter. In the present embodiment, the tube attachment portion 117 is configured by a plurality of pairs of arcuate walls so as to correspond to a plurality of tube diameters.

  Behind the standing part 112 of the base part 111, there is a bar material attaching part 118 attached to the bar material S extending over the opening part of the toilet T (see FIG. 10) that is an inspection object that opens upward. Is provided. The bar material attaching portion 118 extends from the rear end edge of the base portion 111 to the rear and the lower wall portion 118a extending upward from the rear end edge of the base portion 111 at a substantially right angle, and then bends and extends rearward. And an upper wall portion 118b. Further, a fixing screw hole 118c is formed in the upper wall portion 118b. As will be described later, the bar material S is supported or fixed between the lower wall portion 118a and the upper wall portion 118b.

  In the present embodiment, the support 110 is made of a transparent or translucent synthetic resin except for the sliding body 115, and the cylindrical wall 113, the bottom wall 114, the tube attaching portion 117, and the bar material with respect to the base 111. The attachment portion 118 is integrally formed. However, they may be assembled separately. That is, it goes without saying that the present invention can take various forms without being limited to the embodiment.

  As shown in FIGS. 3 and 4, the movable body 120 is arranged in a state of being floated on the surface of the water or in the water to be inspected, and floats 121 that move up and down according to changes in the water level. An extension part 122 extending upward, and a water level display part 123 formed on the extension part 122 for displaying the water level above the base 111 are provided. A part of the extended portion 112 and the water level display portion 123 are disposed in the cylindrical wall 113 of the standing wall portion 112, while the float portion 121 is disposed below the base portion 111. The movable body 120 can move relative to the support 110 and the inspection object in the vertical direction.

  The float portion 121 is a so-called “floating” having a spherical shape, and is configured to generate buoyancy in water and float on the water surface or in water. That is, the float part 121 may be formed of a material that is lighter than the specific gravity of water, or may be formed as a hollow sphere. Moreover, since the diameter of the float part 121 is larger than the diameter of the through hole 114a of the bottom wall 114 of the standing part 112, the float part 121 cannot move into the cylindrical wall 113 through the through hole 114a. .

  The extending portion 122 was formed as an elongated shaft extending vertically. The lower end of the extension part 122 is integrally coupled to the outer surface of the float part 121. The length of the extended portion 122 is determined to be at least larger than the distance from the base 111 (or the opening of the inspection object) to the water surface of the inspection object. In addition, the diameter of the extending portion 122 is smaller than the diameter of the through hole 114 a of the bottom wall 114 of the standing portion 112. The extending portion 122 is disposed so as to pass through the through hole 114a and be movable in the vertical direction within the cylindrical wall 113.

  The water level display part 123 is formed in the extending part 122 at a position higher than the water surface in a state in which the support body 110 is attached to the inspection object, and the movable body 120 relative to the support body 110 is displayed in order to display a change in the water level. It is configured to display relative position changes. Specifically, the water level display portion 123 is formed at the upper end portion of the extending portion 122 via the enlarged diameter portion 124 and is disposed in the cylindrical wall 113. In addition, the water level display part 123 is formed as a cup part extending in the radial direction of the extension part 122. The cup portion has a shape corresponding to the shape of the window 116 in a front view. The water level display portion 123 (or the enlarged diameter portion 124) is larger than the diameter of the through-hole 114a, and thus is restricted from moving to the lower side of the base 111 while being locked to the bottom wall 114. Has been. That is, the movement of the water level display unit 123 is restricted within the standing unit 112. Further, the water level display unit 123 can move in the vertical direction inside the cylindrical wall 113 above the base 111 (the opening of the inspection object) according to the movement of the float unit 121 floating on the water surface. That is, the water level display unit 123 is configured to move at a position that is easily visible above the end of the opening of the inspection object. Furthermore, since the movement of the water level display portion 123 and the extending portion 122 in the axial direction is guided by the cylindrical wall 113 surrounding the water level display portion 123 and the extending portion 122, the water leakage test apparatus 100 operates stably in the vertical direction.

  In the present embodiment, the movable body 120 is formed of a colored synthetic resin material so as to be visible from the outside of the cylindrical wall 113. And the float part 121 and the extension part 122 are integrally formed, and the water level display part 123 is adhere | attached on the extension part 122 front-end | tip. However, it is needless to say that the present invention can take various forms without being limited to the embodiment.

  Next, with reference to FIGS. 6 to 9, a method for performing a water leak test on the drainage system having the vertical pipe P as an inspection object using the water leak test apparatus 100 of the present embodiment will be described. In general, such a water leak test is also called a full water test, and measures the water level over time (the water level after the test time has passed) in the vertical pipe P that opens upwards with the interior of the drainage system filled with a predetermined water pressure. By doing so, the presence or absence of water leakage is detected.

  As shown in FIG.6 and FIG.7, the water leak test apparatus 100 of this embodiment is attached to the vertical piping P of a drainage system, and a water leak test is performed. The vertical pipe P has an opening that opens upward, and the support 110 of the water leakage test apparatus 100 is placed on the edge of the opening. The support 110 is attached to the vertical pipe P by the pipe attaching part 117 in a state where the base 111 of the support 110 is stretched over the opening of the vertical pipe P. In particular, the opposing arc wall of the pipe attachment portion 117 abuts (or engages) with the inner or outer peripheral surface around the opening of the vertical pipe P, and moves in the direction of the opening surface with respect to the opening. It is regulated. Thus, the support body 110 is attached so as to be stationary with respect to the vertical pipe P.

  As shown in FIG. 8, the drainage system that is the inspection object is full, and the water surface of the vertical pipe P has an initial water level L1. And it floats on the water surface in the state where a part of float part 121 was immersed in water. The extended portion 122 connected to the float portion 121 extends above the base portion 111 (and the opening end of the vertical pipe P), and the water level display portion 123 is at a predetermined height inside the cylindrical wall 113 at the upper end. Has been placed. That is, the water level display part 123 is at a position that is easily visible from the outside above the opening of the vertical pipe P. Then, the sliding body 115 is slid by the user so that the window 116 of the sliding body 115 and the cup portion of the water level display unit 123 match. After alignment, the sliding body 115 indicates a reference position corresponding to the initial water level L1 of the water level display unit 123. The sliding body 115 functions as a reference portion that displays a relative position of the water level display portion 123 with respect to the support 110 at the initial water level L1.

  When a water leak location exists in the drainage system that is the inspection object, the water level in the vertical pipe P is lowered after the test time (for example, several hours to several tens of hours) elapses. As shown in FIG. 9, the water surface in the vertical pipe P after time has a time-dependent water level L2. Similarly, since part of the float part 121 is floated on the water surface in a state where it is immersed in water, the float part 121 moves relative to the vertical pipe P opening downward according to the water level fluctuation. The extension part 122 connected to the float part 121 extends above the base part 111 (and the opening part of the vertical pipe P), and the water level display part 123 at the upper end thereof is easily visible from the outside inside the cylindrical wall 113. In position. In particular, the water level display unit 123 descends inside the cylindrical wall 113 by a distance corresponding to the difference between the initial water level L1 and the time-dependent water level L2. On the other hand, even if the water level display part 123 moves downward, the sliding body 115 is held in place, and the sliding body 115 as a reference part is maintained at the same position as the initial position of the water level display part 123. And since the said sliding body 115 becomes a mark, it is possible to visually recognize that the water level display part 123 descend | falls at a glance, As a result, the presence or absence of the water leak of a drainage system can be confirmed easily. That is, the user can easily grasp the temporal displacement of the water level display unit 123 with reference to the sliding body 115. Furthermore, by comparing the position of the window 116 of the sliding body 115 with the position of the water level display unit 123 after movement with time, and measuring the movement distance, the amount of water leakage (ml / H) can also be detected.

  Next, as another example of use of this embodiment, referring to FIG. 10 and FIG. 11, a water leakage test is performed on a drainage system including a toilet T as an inspection object using the water leakage test apparatus 100 of this embodiment. How to do it. The toilet T is generally connected to a drainage system, and it is tested whether or not there is water leakage in the toilet T itself or the drainage system.

  As shown in FIG. 10, the water leakage test apparatus 100 of this embodiment is attached to the toilet bowl T which has the opening part opened upwards, and a water leakage test is performed. A bar material S having a rectangular cross section is spanned on the edge of the opening of the toilet T, and the support 110 of the water leakage test apparatus 100 is attached to the toilet T via the bar material S. Specifically, the support member 110 is supported on the opening of the toilet bowl T by the bar member S being sandwiched between the lower wall portion 118a and the upper wall portion 118b of the bar member attaching portion 118 of the support member 110. Is done. Optionally, the water leakage test apparatus 100 can be fixed to the toilet bowl T by screwing screws into the screw holes 118 c of the bar material attaching portion 118. In this way, the support body 110 is attached so as to be stationary with respect to the toilet bowl T.

  As shown in FIG. 11, the toilet T as the inspection object is full, and the water surface of the toilet T has an initial water level L1. And it floats on the water surface in the state where a part of float part 121 was immersed in water. The extending part 122 connected to the float part 121 extends above the base part 111 (and the opening end of the toilet bowl T), and the water level display part 123 at the upper end is arranged at a predetermined height inside the cylindrical wall 113. Has been. The water level display part 123 is at a position that is easily visible from the outside above the opening end of the toilet T. Then, the sliding body 115 is slid and moved so that the window 116 of the sliding body 115 and the cup portion of the water level display unit 123 match. At this time, the sliding body 115 is at a reference position corresponding to the initial water level L1 of the water level display unit 123.

  When there is a water leakage point in the toilet T and / or its drainage system, which is the inspection object, the water level in the toilet P decreases after time (for example, after several hours to several tens of hours). As shown in FIG. 12, the water surface in the toilet bowl T after time has a time-dependent water level L2. Similarly, since a part of the float part 121 is floated on the water surface in a state where it is immersed in water, the float part 121 moves downward relative to the toilet T opening according to the water level fluctuation. The extending part 122 connected to the float part 121 extends above the base part 111 (and the opening end of the toilet T), and the water level display part 123 at the upper end is easily visible from the outside inside the cylindrical wall 113. In position. In particular, the water level display unit 123 descends inside the cylindrical wall 113 by a distance corresponding to the difference between the initial water level L1 and the time-dependent water level L2. On the other hand, as described above, the sliding body 115 as the reference portion is maintained at the same position as the initial position of the water level display portion 123. And since the said sliding body 115 becomes a mark, it is possible to visually recognize that the water level display part 123 fell.

  That is, since the water leakage test apparatus 100 of this embodiment has both the pipe attachment part 117 and the bar material attachment part 118, it is possible to perform a water leakage test on various inspection objects. In addition, although the object to which the water leak test apparatus 100 demonstrated here was attached was vertical piping and a toilet bowl, this is only the example. The water leakage test apparatus of the present invention is intended to perform a water leakage test on all types of inspection objects that can be assumed by those skilled in the art.

  Hereinafter, the effect of the water leak test apparatus 100 of one Embodiment which concerns on this invention is demonstrated.

  According to the water leakage test apparatus 100 of the present embodiment, the support 110 is attached so as to be stationary with respect to the inspection object (vertical pipe P, toilet bowl T), while the movable body 120 includes the support 110 and the inspection. It can move relative to the object in the vertical direction. In addition, the movable body 120 includes a water level display unit 123 formed in an extending part 122 that extends upward from the float part 121 at a position higher than the opening end of the inspection object (at least a position higher than the water level). On the other hand, by adjusting the position of the sliding body 115 provided on the support body 110 to the position of the water level display portion 123 corresponding to the initial water level L1, the sliding body 115 serves as a reference portion to support the water level display portion 123 at the initial water level L1. The relative position with respect to the body 110 is displayed. After a lapse of time, the water level display part 123 displays the relative position change of the movable body 120 with respect to the support body 110 together with the reference part, whereby the change in the water level in the inspection object can be detected or measured. That is, since the water level display unit 123 displays the positional relationship with the sliding body 115 (reference unit) in an easy-to-understand manner at a position away from the water surface or the float unit 121 that floats in the water, the user can float from the outside. It has become easy to visually determine whether or not the position of the portion 121 has changed. Therefore, the water leakage test apparatus 100 of this embodiment displays the result of a water leakage test easily visually, having a simple structure.

[Modification]
The present invention is not limited to the above embodiment, and various modifications can be made. Hereinafter, modifications of the present invention will be described. Note that, in each modified example, components having the same last two digits in the components indicated by three digits have the same or similar features unless otherwise described, and a part of the description is omitted.

(1) In the said embodiment, although the reference | standard part was comprised as a sliding body hold | maintained slidably to a cylinder wall, this invention is not limited to this. For example, the water leakage test apparatus 200 of FIGS. 13A and 13B includes a scale or symbol (mark) 215 stamped on the cylindrical wall 213 of the standing wall 212 as a reference portion. As shown in FIGS. 13 (a) and (b), by referring to the scale or symbol 215, it is possible to easily detect the position change of the water level display unit 223 according to the change of the water level (L1 → L2). In addition, the amount of variation can be easily measured.

  14A to 14B includes a recording surface 315 formed on the cylindrical wall 313 of the standing wall 312 as a reference portion. A user can paste or write a mark on the recording surface 315 in accordance with the water level display portion 323 at the initial position. For example, in FIG. 14A, the recording surface 315 is blank with respect to the water level display portion 323 indicating the initial water level L1 of the inspection object. Next, as shown in FIG. 14B, the initial position of the water level display unit 323 is recorded as a reference by attaching a first mark 315a to the recording surface 315 with a pen or the like according to the initial position of the water level display unit 323. Is done. Then, as shown in FIG. 14 (c), when there is a water leakage point and a water level change with time (water level L 1 → water level L 2) occurs, the water level display unit 323 at the time position drops from the mark on the recording surface 315. You can see at a glance. Further, the time position of the water level display unit 323 is recorded as the second mark 315b on the recording surface 315, and the distance between the first mark 315a and the second mark 315b is measured, thereby easily grasping the degree of water leakage. Is possible. The reference portion of the above embodiment is merely an example and can take various forms. The reference portion may be configured as a separate body from the standing portion (cylinder wall). Furthermore, a plurality of forms of the reference unit may be simultaneously incorporated in the water leakage test apparatus.

(2) The water leakage test apparatus of the above embodiment is not limited to the form of the above embodiment. For example, in the above-described embodiment, the standing body is formed of a transparent cylindrical wall, but may be a frame shape so that the inside can be visually recognized from the outside. Or a standing body and a reference | standard part may be abbreviate | omitted, In that case, an extending part and a water level display part are directly exposed outside, and the presence or absence of water leakage can be grasped | ascertained by the positional relationship of an extending part and a base. Furthermore, the shape of each member of the water leakage test apparatus is not limited to the above embodiment, and is arbitrarily determined. For example, the water level display unit is not cup-shaped as in the above embodiment, and may have any shape as long as it can be visually confirmed from the outside. As another example of the water level display section, there may be mentioned a shaft body with a mark. Further, the extending portion may not have an axial shape, and may have any shape as long as the water level display portion can be held upward. For example, the extending portion may be a thin plate. That is, as long as it is included in the technical scope of the present invention, it goes without saying that the shape and size thereof can be appropriately modified by those skilled in the art.

  The present invention is not limited to the above-described embodiments and modifications, and can be implemented in various modes as long as they belong to the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 100 Water leak test apparatus 110 Support body 111 Base part 112 Standing part 113 Cylinder wall 114 Bottom wall 114a Through-hole 115 Sliding body (reference | standard part)
116 Window 117 Pipe attachment part 118 Bar material attachment part 120 Movable body 121 Float part 122 Extension part 123 Water level display part 124 Diameter expansion part P Vertical piping (part of inspection object)
T Toilet bowl (part of inspection object)
S Bar material L1 Initial water level L2 Water level over time

Claims (8)

A water leakage test apparatus for inspecting water leakage of the inspection object by measuring a change in water level with time in the stored inspection object,
A support attached to the inspection object;
A movable body supported movably in the vertical direction on the support body,
The movable body is
A float unit that is arranged in a state of floating in the water surface or water in the inspection object, and moves up and down according to a change in water level,
An extending part extending upward from the float part;
A water level display unit that is formed in the extended portion at a position higher than the water surface in a state where the support is attached to the inspection object, and displays a relative position change of the movable body with respect to the support. A water leakage test apparatus comprising:   2. The water leakage test apparatus according to claim 1, wherein the water level display unit is configured to move up and down in accordance with the float unit at a position higher than an opening end of the inspection object opening upward. .   The support is provided with a reference unit for displaying a relative position of the water level display unit at the initial water level with respect to the support, and a position change amount of the water level display unit with respect to the reference unit indicates a change amount of the water level. The water leakage test apparatus according to claim 1 or 2, characterized in that   The said support body is provided with the standing part extended along an up-down direction, and the said reference | standard part is provided with the sliding body hold | maintained slidably along the said standing part. 3. The water leakage test apparatus according to 3.   5. The water leakage test according to claim 3, wherein the support includes a standing part extending along a vertical direction, and the reference part includes a mark attached to the standing part. apparatus.   The standing portion includes a hollow cylindrical wall that interpolates the extended portion and the water level display portion and guides the vertical movement of the extended portion and the water level display portion, and the water level display portion includes the cylindrical wall. The water leakage test device according to claim 4, wherein the water leakage test device is visible from outside. The inspection object is a pipe structure having a vertical pipe opening upward,
The support includes a pipe attachment portion attached to an opening end of the vertical pipe, and the pipe attachment portion abuts on an inner peripheral surface or an outer peripheral surface around the opening of the vertical pipe, The water leakage test device according to any one of claims 1 to 6, wherein the water leakage test device is configured to regulate movement in the direction of the opening surface with respect to the opening.   The said support body is equipped with the bar material attachment part attached to the bar material spanning on the opening part of the said test object opened upwards, The Claim 1 characterized by the above-mentioned. The water leakage test apparatus described.

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