JPH082194Y2 - Leakage detection type piping structure - Google Patents

Description

[Detailed description of the device] [Industrial applications]

The present invention relates to a water leakage detection type piping structure capable of easily and early detecting a water leakage accident.

[Prior art]

As is well known, in water facilities for buildings, pipes for water supply, hot water supply, and water distribution are installed at various places and parts. By the way, for floor piping in the washroom,
The pipe on the floor panel and the pipe under the floor panel are connected via a connecting tool, the connecting tool is hidden under the floor panel, and a process for preventing a water leakage accident is a predetermined part including a pipe connecting part. Is applied to. In the case of the above-mentioned piping technique, an unexpected water leakage accident may occur at the pipe connection portion although the water leakage prevention treatment is performed. Such accidents must be detected early and promptly taken measures, but in a piping situation where the pipe connection is hidden, it is almost impossible to detect the accident, so damage to the water leaks around the area. Spread to.
In addition, even if the pipe connection portion is regularly inspected as a countermeasure, it is not easy to inspect the pipe portion hidden under the panel. In the case of the water faucet mounting structure disclosed in Japanese Utility Model Laid-Open No. 59-51866, when the above-mentioned water leakage accident occurs, it can be found from the outside. That is, since such a known technique is to allow water leakage from the pipe connection portion to be leaked to the panel surface side by receiving the water leakage from the surrounding watertight tubular body, even if the water leaks from the hidden pipe portion, It is possible to detect water leak accidents.

[Problems to be solved by the device]

In the above-described water supply plug mounting structure of the known art, the waterproof cylinder is fitted into the panel opening, and the connection end of the water supply plug on the front side of the panel and the connection end of the water supply pipe on the back side of the panel are inside the waterproof cylinder. It is connected with. However, the following problems remain in this structure. One of them is that when the waterproof tubular body is fixed to the panel surface together with the water tap, the front side opening of the waterproof tubular body is completely closed by the water tap or the flange thereof. When the surface opening of the waterproof tubular body is closed in this manner, the leakage of water from the waterproof tubular body to the panel surface side is significantly hindered, so that the discovery of a water leak accident tends to be delayed. Further, when the amount of water leakage is large, the waterproof packing is pushed open by the pressure of the water leakage filled in the waterproof cylinder, and a part of the water leakage enters the back surface of the panel. The other one is that the waterproof packing is only interposed between the water supply pipe and the water supply pipe at the opening on the back side of the waterproof pipe body, and these waterproof pipe body and water supply pipe are not directly and firmly fixed. . If the waterproof tubular body and the water supply pipe are not firmly fixed, the center axes of both will not match (centering failure), so the waterproof packing protruding from the waterproof tubular body will be even with respect to the outer peripheral surface of the water supply pipe. There is no close contact, and a minute gap is partially formed between the waterproof packing and the water supply pipe. Such gaps are of course harmful,
Water leaking through the water supply pipe escapes to the back side of the panel.

[The purpose of the device]

In view of such a technical problem, the present invention enhances the fluidity of water leakage from the pipe connection part to the panel front surface side and prevents the water leakage intrusion to the panel back surface side in order to detect the water leakage accident easily and early. The present invention is intended to provide a water leakage detection type piping structure that can be used.

[Means for Solving the Problems]

The water leakage detection type piping structure according to the present invention is characterized by the following means for solving the problems in order to achieve the intended purpose. That is, a part of the panel is opened to connect the pipe on the front side of the panel and the pipe on the back side of the panel, and one end of the water leakage cup is opened for leakage of water and insertion of the pipe. , The other end of the water leakage cup is opened for inserting the pipe, and the pipe on the front surface side of the panel and the pipe on the rear surface side of the panel are connected by the panel opening portion and covered on the outer periphery of the pipe connection portion. If the water leakage cup is fitted and fixed in the panel opening and there is a water leakage space between the outer peripheral surface of the pipe connection part and the inner peripheral surface of the water leakage cup, one end of the water leakage cup is open at the panel surface side. It is characterized in that the other end of the water leak cup on the back surface side of the panel and the pipe connecting portion in the water leak cup are fitted and tightly fixed to each other.

[Action]

In the case of the water leakage detection type piping structure according to the present invention, the water leakage space is interposed between the outer peripheral surface of the pipe connecting portion and the inner peripheral surface of the water leakage cup. When no water leakage accident occurs in such a piping structure, there is no water pool in the water leakage space of the water leakage cup, but if water leaks from the pipe connection due to an unexpected cause, water will accumulate in the water leakage cup. Or the water in the leak cup may flow out to the panel surface side. Therefore, the presence or absence of water leakage accidents can be found by visually inspecting them, such as whether water pools have formed in the water leakage cups or whether water overflows from the water leakage cups and the panel surface side is wet. . When a water leakage accident is found in this way, the water leakage cup is removed from the panel opening, and this is pulled out to the panel surface side together with the pipe connecting portion to perform a predetermined repair work.

【Example】

A water leakage detection type piping structure according to the present invention will be described based on an illustrated embodiment. 1 to 3, 11 is a concrete wall of a building, and 12 is a panel provided on the concrete wall 11 (example:
Floor panel), 13 is a panel opening formed in the panel 12,
Reference numeral 14 is a pipe on the rear surface side of the panel, 15 is a pipe on the front surface side of the panel, 16 is a washing container (eg, wash basin), 21 and 31 are connectors, and 41 is a leak cup. The connecting tool 21 is, for example, made of a metal cap nut, and has a female screw portion 22 on the inner periphery of one end and a male screw portion on the outer periphery of the other end.
While having 23, a cylindrical fitting portion 24 and an annular groove 25 are integrally formed on the other end side. The connection tool 31 is made of, for example, a metal or synthetic resin tightening ring, and the inner peripheral surface of the connection tool 31 has an uneven line 32 for preventing slippage.
Are formed. The water leakage cup 41 is made of, for example, a cylindrical body made of metal or synthetic resin. The water leakage cup 41 is formed by concentrically forming a main cup portion 42 and a subordinate taper cylinder portion 44 side by side in the axial direction thereof. A flange 43 is formed on the outer circumference of the open end of the cup portion 42. In the tapered cylindrical portion 44, a female screw portion 45 is provided on the inner peripheral surface of the end portion near the cup portion 42 side.
Are formed. As is obvious, one end of the water leakage cup 41 is open and the other end is also open. The panel 12, the pipes 14 and 15, the washing container 16 and the like are all well known. As these materials, wood, synthetic resins, metals, ceramics, and composite materials of these materials are used arbitrarily or in suitable places. As an example, the panel 12 is made of wood, the pipe 14 is made of synthetic resin, 15 is made of metal, and the washing container 16 is made of ceramic. The water leakage detection type piping structure according to the present invention is assembled in the following procedure as will be apparent from FIGS. 1 and 2. The washing container 16 is attached to a predetermined wall surface on the surface of the panel 12, and one pipe 15 is connected to the lower end thereof. The pipe 14 on the back side of the panel 12 has a panel opening 13
After being drawn toward the panel surface side and the water leakage cup 41 and the connector 31 are loosely fitted on the outer circumference of the pipe outlet end, the connector 21 is attached to the pipe outlet end. In this case, first, the fitting portion 24 of the connector 21 and the end of the pipe 14 are relatively fitted in and out, and the end of the pipe 14 is abutted in the concave groove 25 of the connector 21, and,
The connector 31 forcibly fitted to the end of the pipe 14 tightens the pipe end from the outer circumference. Next, the end of the pipe 15 on the side of the washing container 16 is screwed with the male screw portion 23 of the connector 21, and the female screw portion 45 formed on the tapered cylinder portion 44 of the water leakage cup 41 and the connector.
The male screw portion 23 of 21 is relatively screwed. Hereinafter, when the water leak cup 41 is fitted into the panel opening 13 and the flange 43 of the water leak cup 41 is screwed to the panel 12, the water leak detection type piping structure of FIG. 1 is obtained. In the above, both pipes 14 and 15 are connected to each other,
When the water leakage cup 41 and the water leakage cup 45 are fixed to each other, a water leakage space 46 is formed between the inner and outer peripheral surfaces of the water leakage cup 41 and the pipe connection portion (a portion including the connection tool 21). This leak space 46 is the panel 12
It is open to the front side of the, and the pipe connection part is housed inside. The pipe 14 is on the back side of the panel 12, and the pipe 15 is on the front side of the panel 12. When a water leakage accident occurs near the pipe connection in the water leakage detection type piping structure of FIG. 1, as described above, water may accumulate in the water leakage cup 41 or the water in the water leakage cup 41 may flow to the panel surface side. From this, a water leak accident can be identified by visually observing such a situation. When a water leakage accident is found, disassemble the predetermined place as shown in Fig. 3 to remove the water leakage cup 41 from the panel opening 13, and pull it up together with the pipe connection to the panel surface side for necessary repair work. To do. In the illustrated embodiment, the water leakage detection type piping structure is applied to the drainage piping system of the building, but such a water leakage detection type piping structure can also be applied to the water supply, hot water supply and other piping systems. Other than this, it can be applied to a drainage, water supply, hot water supply, and other piping systems in a toilet unit, a bathroom unit, a kitchen unit, a toilet unit, a composite unit, and other water-related facilities.

[Effect of device]

The water leakage detection type piping structure according to the present invention has the following effects. (1) Since one end of the water leak cup is open on the panel surface side, when the water leaking from the pipe connection and accumulated in the water leak cup flows out to the panel surface side, its fluidity is completely impeded. Not done. When such a notification signal based on water leakage fluidity is obtained, the presence or absence of a water leakage accident can be easily visually identified, and a water leakage accident can be detected early and reliably. (2) Since the water leakage cup has an open end on the front surface side of the panel, there is no inconvenience that the water leakage cup fills the water leakage cup and flows into the back surface side of the panel. Therefore, it also helps prevent water leakage to the back side of the panel. (3) The other end of the water leak cup on the rear surface side of the panel and the pipe connecting portion in the water leak cup are fitted and fixed tightly to each other. That is, since the water leakage cup and the pipe connecting portion in this portion are directly and firmly fixed via the connecting tool, no harmful gap is generated between them,
Water leaks from this part are unlikely to occur. Therefore, also in this respect, it is useful for preventing water leakage to the back side of the panel and contributes to the simple, early and reliable discovery of a water leakage accident.

[Brief description of drawings]

FIG. 1 is a front view of a cutout showing an embodiment of a water leakage detection type piping structure according to the present invention, FIG. 2 is a cutaway view showing an exploded main part of the structure, and FIG. 3 is the present invention. FIG. 4 is a front view showing a removed state of the water leakage cup in FIG. 12 …… Panel 13 …… Panel opening 14 …… Pipe 15 …… Pipe 21 …… Connector 31 …… Connector 41 …… Water leak cup 46 …… Water leak space

Claims (1)

[Scope of utility model registration request] 1. A part of the panel is opened to connect a pipe on the front surface side of the panel and a pipe on the rear surface side of the panel, and one end of the water leakage cup is opened for leakage of water and insertion of the pipe. In addition, the other end of the leak cup is opened for inserting the pipe, the pipe on the panel front side and the pipe on the panel back side are connected by the panel opening, and at the outer periphery of the pipe connecting part. In the case where the covered water leakage cup is fitted and fixed in the panel opening and the water leakage space is interposed between the outer peripheral surface of the pipe connection portion and the inner peripheral surface of the water leakage cup, one end of the water leakage cup is on the panel surface side. The leak detection pipe is characterized in that the other end of the leak cup on the back side of the panel and the pipe connection part in the leak cup are fitted and tightly fixed to each other. Elephants.