JP2004183849A - Water leakage finding device of pipe joint portion - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water leakage finding device of a pipe joint portion in which water leakage is visually and easily found even when water leakage is small, or the liquid is transparent and hardly seen, and repairs or the like are performed in an early stage. <P>SOLUTION: An outer circumference of a pipe joint portion is tightly covered by a cover body, a small hole is opened in the cover body, and a penetration member to allow the liquid to penetrate and flow is provided from a joint portion to an outer portion of the cover body via the small hole. A display means to display the liquid leaking and flowing from a pipe with the color is provided on the outer portion of the cover body of the penetration member, so that water leakage from the joint portion is found by visually checking the color of the display means. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a device for detecting water leakage in a pipe joint, and in particular, by using a display means that reacts with water leakage and changes color or is colored with a dye or pigment, when the amount of water leakage is small or when the liquid is transparent and difficult to see, it is visually observed. The present invention relates to a technology that can be easily confirmed.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a joint pipe has been used for adding and branching a branch pipe to a pipe member, connecting pipes having different diameters, or repairing the pipe. This joint pipe generally has a structure in which the pipe is fitted with an existing pipe, and is attached with an adhesive, a rubber packing, or a threaded screw.
[0003]
By the way, the connection between the existing pipe and the joint pipe is easily damaged by the type of liquid flowing in the pipe and the fluid pressure thereof, and water leakage has gradually occurred due to corrosion and aging. Therefore, if the flowing liquid adversely affects the human body or the environment, serious accidents may be caused.In particular, piping is often installed in an invisible place, so if transparent liquid is difficult to see or In case of small amount of water leakage, it was sometimes overlooked during inspection.
[0004]
[Problems to be solved by the invention]
The problem to be solved by the present invention is to solve these conventional problems, and to make it possible to easily confirm by visual inspection even when the amount of water leakage is small or the liquid is difficult to see, so that repairs and the like can be performed at an early stage. It is an object of the present invention to provide a leak detecting device for a pipe joint.
[0005]
[Means for Solving the Problems]
The configuration of the present invention that has solved such a problem includes:
1) The outer periphery of the pipe joint is covered with a cover body and sealed, a small hole is opened in the cover body, and a penetrating member for allowing liquid to permeate and flow from the joint between the pipe and the joint pipe through the small hole. Provided over the outside of the cover body, and provided on the outside of the cover body of the osmotic member with a display means that changes color when it comes into contact with the liquid in the pipe, so that the color of the display means can be visually observed to detect water leakage from the pipe joint. 2) A leak detecting device for pipe joints according to 1) above, wherein the end of the penetrating member outside the cover body is sealed with a transparent or translucent liquid receiving pipe 3) A space inside the cover body The leak detecting device for a pipe joint section according to the above 1) or 2), in which a water passage is formed by a penetrating member to easily collect water leakage, and the penetrating member is made of felt. Water leakage at the pipe joint section according to any of the above 1) to 3) Discovery device 5) The display means is sealed with a capsule that dissolves the reactant / dye or pigment that changes color upon contact with the liquid in the pipe with the leaked liquid, and an absorbing member capable of absorbing the liquid is provided below the capsule. After the liquid that has flowed out dissolves the capsule and mixes with the reactant / dye or pigment, the color changes with the reactant / dye or pigment, and the discolored reactant / dye or pigment is absorbed by the absorbing member to color a large area. The leak detecting device for a pipe joint section according to any one of the above 1) to 4), which is configured so that the leak can be easily observed by displaying the information. 6) The leak detecting device according to the above 5), wherein the reactant is litmus powder. 7) Piping joint leak detection device 7) The outer periphery of the pipe joint member is covered and sealed with a cover body, and a small hole is closed in the cover body. From the part through the small hole Provided outside the body, provided with a sensor that detects or reacts with or contacts liquid leaked from the pipe and leaked out of the pipe on the outside of the cover of the penetrating member, and provided with alarm means that receives a signal from the sensor and issues an alarm with light or sound The present invention is directed to a leak detecting device for a pipe joint, which can detect a leak from the pipe joint at a distance.
[0006]
[Action]
According to the present invention, when water leaks at the pipe joint, the liquid permeates the permeating member and flows out of the cover body, and the discharged liquid comes into contact with the display means and the display means changes color. Therefore, the inspector can easily confirm whether or not water leakage has occurred by visually observing the discoloration of the display means.Moreover, even if a small amount of water leaks, the water can reliably flow to the display means with the penetrating member. Repairs can be performed.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
When the penetrating member of the present invention is covered with a transparent or translucent liquid receiving tube made of a material that is not eroded by the liquid, the liquid is easily stored and stored in the liquid receiving tube, which makes it easier to find. Further, when the cover body is filled with a foamed resin such as urethane resin, a water channel is formed by the osmotic member, and it becomes easy to collect water leakage. The penetrating member is generally made of felt, but any other material such as a fiber rod that can easily penetrate the liquid by capillary action can be used.
[0008]
As the display means, those which are mixed with the liquid in the pipe and are sealed with a capsule that dissolves the reactant / dye or pigment that discolors with the leaked liquid and provided with an absorbing member capable of absorbing the liquid below the capsule. After the dissolved liquid dissolves the capsule, it discolors by touching the reactant / dye or pigment, and the discolored reactant / dye or pigment penetrates into the absorbing member and is widely colored to easily display water leakage. it can. Litmus powder is generally used as a reactant.
[0009]
As another means, there is a sensor that can detect by contact with the liquid, and it is also possible to provide a warning means that receives a signal from the sensor and warn by light or sound so that a leak can be found in a distant place. Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
[0010]
【Example】
Embodiment 1 Embodiment 1 shown in FIGS. 1 to 5 is an example in which the leak detection device of the present invention is attached to an elbow portion of an existing pipe. FIG. 1 is a side view of the water leak detection device of the first embodiment, FIG. 2 is a plan view of the water leak detection device of the first embodiment, FIG. 3 is an explanatory diagram of the inside of the water leak detection device of the first embodiment, and FIG. FIG. 5 is an explanatory diagram showing a use state of the water leakage detection device of the first embodiment.
[0011]
In the figure, reference numeral 1 denotes a cover body, 1a is a multi-staged insertion portion which can be cut into close contact by cutting according to various pipe diameters, 1b is a small hole, 1c is a joint piece, 1d is a screw hole, 1e Is a closing bolt, 1f is a mounting screw, 2 is a display member, 2a is a liquid receiving tube, 2b is a reactant, 2c is a capsule, 2d is an absorbing member, 2e is a penetrating member, 3 is an existing pipe, 4 is an elbow, 5, 6 is a penetrating member, 7 is a foamed resin, and W is a liquid.
[0012]
In the first embodiment, as shown in FIGS. 1 to 3, a penetrating member 5 made of a thin felt is adhered to each outer peripheral edge of the elbow 4, and the felt is formed between both ends of the outer surface of the elbow 4 between the penetrating members 5. The penetrating member 6 is adhered, and each insertion portion 1a of the multi-stage cover body 1 is cut at a step portion corresponding to the outer diameter of the existing pipe 3, and the outer circumference of the joint including the existing pipe 3 and the elbow 4 is symmetrical. The existing pipe 3 is covered with a pair of L-shaped cover bodies 1 so as to match the insertion portion 1a, and the superposed joint pieces 1c are screwed together with mounting screws 1f to come into close contact.
[0013]
On the other hand, an absorbing member 2d made of a white fiber rod is inserted into a liquid receiving tube 2a made of transparent plastic, and a water-soluble capsule 2c in which a reactant 2b made of litmus powder is sealed at the upper end of the absorbing member 2d. A display member 2 is formed by mounting a penetrating member 2e made of a hard fiber rod on the upper surface of the capsule 2c so as to protrude from an upper end opening of the liquid receiving tube 2a, and a plurality of small holes formed in the cover body 1. The upper end of the penetrating member 2e of the display member 2 is attached to the penetrating member 6 in the small hole 1b of the lower side 1b.
[0014]
The foamed resin 7 made of urethane resin is injected from the small holes 1b on the side surface of the cover 1 and the space inside the cover 1 is filled with the foamed resin 7 and then closed with the closing bolts 1e. A water channel through which the liquid leaked by the penetrating members 5, 6, 2e after curing flows.
[0015]
Here, as shown in FIG. 5 (a), when the liquid W flowing through the existing pipe 3 and the elbow 4 leaks from the joint portion for some reason such as aging, the liquid W becomes the penetrating member 5 bonded to the joint portion. And flows inside the fibers of the penetrating members 6 and 2e by capillary action, flows out of the cover body 1, and reaches the capsule 2c.
[0016]
The liquid W that has flowed out dissolves the capsule 2c and mixes with the reactant 2b sealed therein, and the liquid W changes color according to its component (pH). The discolored liquid W is absorbed by the absorbing member 2d as shown in FIG. 5B, and a wide area colored portion is formed over the entire area. The inspector visually observes the display member 2 at the time of inspection, finds out that water is leaking when the absorbing member 2d in the liquid receiving pipe 2a is colored, and promptly takes measures such as repair. It becomes.
[0017]
Second Embodiment A second embodiment shown in FIG. 6 is an example in which a water leak sensor is attached instead of the absorbing member 2d of the display member 2 of the first embodiment. FIG. 6 is an explanatory diagram of the inside of the water leak detection device according to the second embodiment. In the figure, 8 is a water leak sensor, 8a is a signal line, 9 is an alarm unit, 9a is an alarm speaker, and 9b is an alarm lamp.
[0018]
In the second embodiment, as shown in FIG. 6, a water leak sensor 8 is integrally attached to a lower half position of the liquid receiving pipe 2a where the absorbing member 2d is located. Therefore, when water leaks, the liquid W that has flowed out dissolves the capsule 2c and mixes and discolors with the reactant 2b in the same manner as in the first embodiment, and when the liquid W touches the water leak sensor 8, a signal is transmitted through the signal line 8a. The alarm is transmitted to the distant alarm unit 9 and an alarm is generated by an alarm sound from the alarm speaker 9a or blinking of the alarm lamp 9b. Otherwise, the reference numerals and configurations are the same as in the first embodiment.
[0019]
【The invention's effect】
As described above, according to the present invention, the inspector can easily check whether or not water leakage has occurred even if the liquid is transparent by visually observing the discoloration state of the display means. Since it flows to the display means, it is possible to detect a water leak at an early stage and take measures such as repair.
[Brief description of the drawings]
FIG. 1 is a side view of a water leakage detection device according to a first embodiment.
FIG. 2 is a plan view of the water leakage detection device according to the first embodiment.
FIG. 3 is an explanatory diagram of the inside of the water leak detection device according to the first embodiment.
FIG. 4 is an explanatory diagram of a display member according to the first embodiment.
FIG. 5 is an explanatory diagram illustrating a usage state of the water leakage detection device according to the first embodiment.
FIG. 6 is an explanatory diagram of the inside of a water leak detection device according to a second embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cover body 1a Inserting part 1b Small hole 1c Joining piece 1d Screw hole 1e Closing bolt 1f Mounting screw 2 Display member 2a Liquid receiving tube 2b Reagent 2c Capsule 2d Absorbing member 2e Penetrating member 3 Existing piping 4 Elbow 5, 6 Penetrating member 7 Foam resin W liquid

Claims (7)

The outer periphery of the pipe joint is covered with a cover body and sealed, and a small hole is opened in the cover body to cover a permeating member through which the liquid permeates and flows from the joint between the pipe and the joint pipe through the small hole. A pipe that is provided outside the body and provided with a display means that changes color when it comes into contact with the liquid of the pipe on the outer part of the cover of the osmotic member, so that the color of the display means can be visually observed to find water leakage from the pipe joint. Water leak detection device for joints. 2. The leak detecting device according to claim 1, wherein an end portion of the penetrating member outside the cover body is sealed with a transparent or translucent liquid receiving pipe. The leak detecting device for a pipe joint according to claim 1 or 2, wherein the space inside the cover body is filled with a foamed resin, and a water passage is formed by a permeating member to easily collect the leak water. The leak detecting device for a pipe joint according to any one of claims 1 to 3, wherein the permeating member is made of felt. The display means is sealed with a capsule that dissolves the reactant / dye or pigment discolored by contact with the liquid in the pipe with the leaked liquid, an absorbing member capable of absorbing the liquid is provided below the capsule, and the liquid that has flowed out is provided. After dissolving the capsule, it is mixed with a reactant / dye or pigment after dissolving to discolor with the reactant / dye or pigment, and the discolored reactant / dye or pigment is absorbed by an absorbing member to display a large area by coloring. The leak detecting device for a pipe joint according to any one of claims 1 to 4, wherein the leak detecting device is configured so that the leak can be easily visually observed. The leak detecting device for a pipe joint according to claim 5, wherein the reactant is litmus powder. The outer periphery of the pipe joint member is covered and sealed with a cover body, a small hole is closed in the cover body, and a penetrating member for allowing liquid to permeate and flow is covered from the joint between the pipe and the joint pipe through the small hole. Provided outside the body, provided with a sensor that detects or reacts with or contacts liquid leaked from the pipe and leaked out of the pipe on the outside of the cover of the penetrating member, and provided with alarm means that receives a signal from the sensor and issues an alarm with light or sound , A leak detection device for pipe joints that allows water leaks from pipe joints to be found at a distance.

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