JPH0313476B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a piping connection device for water heaters, hot water heaters, and other appliances that involve piping work.

(Prior Art) As a conventional device of this kind, one is known that connects each internal pipe of a device that involves piping work and each external pipe that is a corresponding source pipe.

(Problems to be Solved by the Invention) However, according to the above-mentioned conventional device, two works are required: one for laying each external pipe, and one for connecting each internal pipe to each external pipe when installing equipment. However, there was an inconvenience in that the construction work was troublesome.

(Means for Solving the Problems) The present invention aims to eliminate the above-mentioned inconvenience by making it possible to omit the work required to install the appliance, and to eliminate the need for each internal piping of the appliance that requires piping work. In a device for connecting corresponding external piping, the device is composed of a device main body and a cover that covers the device main body, and the cover is provided with joint pipes connected to the respective external pipes, and each joint pipe is provided on the cover. The connection ends of the joint pipes to each of the internal pipes are arranged opposite to the connection ends of each of the internal pipes, and the joint pipes and each of the internal pipes are connected by quick couplings attached to these connection ends. It is characterized by

(Function) The present invention has the above configuration. According to this, when each external pipe is laid, each external pipe and each joint pipe can be connected and the cover fixed, so that the cover can be fixed at an appropriate time thereafter. When the device body is housed in the cover and the device is installed, the quick fittings at the connecting ends of each joint pipe and the quick fittings at the connecting ends of each internal pipe are fitted together, and these two pipes are connected, eventually.
Piping connection work can be omitted when installing equipment, 1
Each internal piping and each external piping can be easily and reliably connected with multiple construction works.

(Example) Next, an example in which the present invention is applied to a wall-mounted water heater will be described based on the drawings.

Figures 1 to 5 show a piping connection device for installing a water heater on the wall of a balcony of a high-rise residence.A water heater 1 consists of a water heater body 2 and a cover 3 that covers it. The main body 2 is formed into a box shape with an open front and top surface, a combustion casing 4 is fixed to the back, and two protrusions 5 each having an enlarged tip are provided on the outside of both sides of the main body 2. The cover 3 is formed into a box shape with an open back and lower surface, and has a discharge port 6 at the lower front thereof, and a joint pipe 7 for water supply, a joint pipe 8 for hot water supply, and a joint pipe 9 for gas supply on the upper surface. The cover 3 has a structure in which a mounting piece 10 is provided, two vertically longitudinal locking grooves 11 and two mounting pieces 12 are provided on both sides of the cover 3.
0 and 12 are screwed to the wall surface 14 of the balcony 13, and the water heater main body 2 is inserted from below the cover 3 so that the protrusion 5 engages with the engagement groove 11, and the combustion housing 4 is slid. When the flange portion 15a of the exhaust port 15 is locked in the locking groove 6a of the discharge port 6 of the cover 3, the water heater main body 2 is screwed to the cover 3 from the side, and the water heater main body 2 and the cover are separated. 3 are now integrated.

A burner 16 is provided in the middle part of the combustion case 4.
and a heat exchanger 17 heated by the burner 16, a fan 18 for supplying combustion air to the burner 16 is provided above the fan 18, and a space 19 for concentrating combustion exhaust is formed below the fan 18. .

The burner 16 is of a premix combustion type,
A combustion flame is formed downward.

The heat exchanger 17 has an upstream end connected to an internal water supply pipe 20 and a downstream end connected to a hot water supply internal pipe 21 .

The fan 18 is provided with a gas nozzle 23 connected to an internal gas supply pipe 22 at its suction port.

The connection ends 20a, 21a, 22a of the three internal pipes 20, 21, 22 are located on the side of the combustion casing 4 inside the water heater main body 2 due to the fact that the combustion control device is installed in one place. They are concentrated vertically in a small space on the other side.

On the other hand, on the ceiling wall surface 24 of the balcony 13, an external pipe 25 for water supply, an external pipe 26 for hot water supply, and an external pipe 27 for gas supply are installed.
The connection ends 25a, 26a, 27a of 6 and 27 are arranged in a dispersed manner to facilitate construction work.

Each internal pipe 20, 21, 2 of the water heater 1 described above
2 and each external piping 25, 26, 27 of the ceiling wall surface 24
Connections are made with each joint pipe 7 of the cover 3,
8, 9, and the connection end of each joint pipe 7, 8, 9 is connected to each internal pipe 20, 21, 2.
2 connection ends 20a, 21a, 22a and connection ends 25a, 26a, 27 of each external piping 25, 26, 27
a, each joint tube 7, 8, 9
connection end on the internal piping side and each internal piping 20, 21,
Conventionally known quick couplings are attached to the connecting ends 20a, 21a, 22a of the external pipes 25, 22, respectively.
26, 27 and each joint pipe 7, 8, 9 are connected using a general tool such as a spanner during the installation work of each external piping 25, 26, 27 performed first.
The connection between each internal pipe 20, 21, 22 and each joint pipe 7, 8, 9 will be made at an appropriate time later when the water heater 1 is installed, that is, when the water heater body 2 is connected to the cover 3 attached to the wall surface 14. Retraction takes place automatically via quick couplings.

In addition, the above-mentioned protrusion 5 and engagement groove 11 are connected to the connection ends 20a, 21a, 2 of each internal pipe 20, 21, 22.
This serves as a guide for making the joint 2a face the connecting ends of the joint pipes 7, 8, and 9.

The water heater 1 for which the piping connection work has been completed in this way is
By driving various control devices associated with ignition operation,
The fan 18 rotates to send a desired amount of air-fuel mixture to the burner 16, the burner 16 is ignited, and the mixture is sent from the external water supply pipe 25 through the water supply joint pipe 7 and the water supply internal pipe 20. Water is heated in the heat exchanger 17, and hot water at a desired temperature is supplied to a predetermined location from the internal piping 21 for hot water supply through the joint pipe 8 for hot water supply and the external piping 26 for hot water supply, and combustion gathers in the space 19 of the combustion case 4. Exhaust gas is discharged to the outside from the exhaust port 6 of the cover 3 via the exhaust port 15.

In addition, in the above embodiment, each external pipe 25, 26, 2
7 was installed on the ceiling wall surface 24 of the balcony 13, the joint pipes 7, 8, and 9 were installed on the top surface of the cover 3, and the water heater main body 2 was inserted from below the cover 3, but this is not limited to this. Not a thing,
For example, as shown in FIGS. 6 to 10, each external pipe 25, 26, 27 is
and each joint pipe 7, 8, 9 with cover 3.
Of course, it is also possible to provide the water heater body 2 on the lower surface of the cover 3 and insert the water heater main body 2 from above the cover 3.

(Effects of the Invention) According to the present invention, each joint pipe connected to each external pipe is provided on the cover that covers the appliance body, and the connection end of each joint pipe with each internal pipe is connected to each internal pipe. Since each joint pipe and each internal pipe are connected by quick fittings attached to these connecting ends, it is easy to install the cover when laying the external pipes first. In other words, when installing the equipment that will be connected to each joint pipe later, the pipe connection work of each external pipe to each joint pipe can be performed using general construction work. When storing the device in the cover, it can be installed with one touch using a quick fitting without any tools, which eliminates the need for two installations, one for laying the external piping and the other for installing the equipment. This has the effect that construction work can be carried out more easily and reliably.

[Brief explanation of the drawing]

1 to 5 show a first embodiment in which the present invention is applied to a water heater, FIG. 1 is an external perspective view of the main body of the water heater, FIG. 2 is a cutaway front view of FIG. 1,
FIG. 3 is an external perspective view of the cover, FIG. 4 is an explanatory view when installing the water heater, and FIG. 5 is an external perspective view of the water heater after piping connection work is completed. Figures 6 to 1
Figure 0 shows a second embodiment in which the present invention is applied to a water heater, Figure 6 is an external perspective view of the main body of the water heater, Figure 7 is a cutaway front view of Figure 6, and Figure 8 is a cover. FIG. 9 is an explanatory diagram when installing the water heater, and FIG. 10 is a perspective view of the exterior after the piping connection work for the water heater is completed. 1...Water heater (equipment that requires plumbing work), 2...
...Water heater body (equipment body), 3...Cover, 7,
8, 9... joint tube, 20, 21, 22...
Internal piping, 20a, 21a, 22a... connection ends of internal piping, 25, 26, 27... external piping.

Claims (1)

[Claims] 1. For those connecting each internal piping of equipment that involves piping work and each corresponding external piping,
The device is composed of a device body and a cover that covers the device body, and the cover is provided with joint pipes connected to the respective external pipes, and the connection ends of the joint pipes to the respective internal pipes are connected to the respective joint pipes. 1. A pipe connection device, characterized in that the joint pipes are arranged opposite to the connection ends of the internal pipes, and each joint pipe and each internal pipe are connected by quick joints attached to these connection ends.