JPH0213822Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a solenoid valve for gas appliances such as water heaters and bathtubs.

Conventionally, a solenoid valve for a gas appliance, which is piped into a gas path of a gas appliance and constitutes a control unit, has a solenoid valve main body 4 provided with a gas inlet 5 and a gas outlet 6, as shown in FIG. It is formed by placing an electromagnetic coil 1 thereon, and connecting the center of the electromagnetic coil 1 to the tip of a plunger 3 which is freely movable in the axial direction and a valve body 2. Then, the electromagnetic coil 1 is energized to attract the plunger 3, and the gas inlet 5 and the gas outlet 6 are communicated with each other to open a gas path. Generally, the electromagnetic valve main body 4 is manufactured by die casting, and various directional positions of the gas inlet 5 and the gas outlet 6 are required due to dimensional limitations of the control section and piping considerations. As a result, although various performances such as flow rate and pressure loss are the same, it is necessary to separately manufacture a solenoid valve body 4 that meets these installation conditions, which is extremely unreasonable.

The purpose of this invention is to provide a solenoid valve having a newly constructed solenoid valve body, expand the installation specifications, and eliminate the above-mentioned disadvantages.

The configuration and effects of this invention will be specifically explained below using examples shown in FIG. 2 and below.

FIGS. 2 and 3 show a die-cast electromagnetic valve body 10, which is a first embodiment of this invention. Branch pipes 11, 12, 13, 14 in four directions are provided in the horizontal direction on the side wall of the solenoid valve body 10 in a planar cross shape, and a branch pipe 15 is provided in the downward direction on the bottom wall.
An inner cylindrical portion 16 is provided upright on the bottom wall at a distance within the side wall. A branch pipe 14 in one direction is connected to the inner cylinder part 16, and branch pipes 11, 12, 13 in three other horizontal directions are connected.
are connected to the side wall of the solenoid valve main body 10. The solenoid valve main body 10 is die-cast in the above shape, and the electromagnetic coil 1 is placed on the solenoid valve main body 10, and the valve body 2 connected to the tip of the plunger 3 is connected to the inner cylinder as in the conventional example. The upper end opening 16a of the portion 16 is brought into contact with the upper end opening 16a.

In the electromagnetic valve body 10 having such a shape, any of the three horizontal branch pipes 11, 12, 13 connected to the side wall is selected, and the contact surfaces 11a, 12a,
One of the holes 13a is drilled to form a hole, and a gas inlet is formed in communication with the primary gas chamber 17 formed in the space between the side wall and the inner cylindrical portion 16. Also, select either the branch pipe 14 connected to the inner cylinder part 16 or the downward branch pipe 15, and drill the contact surface 14a to the inner cylinder part 16 or the contact surface 15a to the bottom wall. If a hole is opened and communicated with the secondary gas chamber 18 in the inner cylinder part 16 to form a gas outlet, and both contact surfaces 14a and 15a are opened,
A two-way gas outlet can be formed. Above, gas inlet, primary gas chamber 17, secondary gas chamber 1
8. Complete the gas outlet path to configure the gas flow path. Therefore, in consideration of the convenience of piping and the conditions for installing the electromagnetic valve, the branch pipes in which direction are to be used as the gas inlet and the gas outlet are selected and set.

FIG. 4 shows another embodiment of this invention, in which branch pipes 12', 14' in two opposite directions among four horizontal branch pipes 11, 12', 13, 14' are connected to an inner cylinder part 16. It was established and formed. Therefore, branch pipe 1
Contact surfaces 12a', 14 of 2', 14' to the inner cylinder part 16
By drilling a' and forming a hole, it is possible to select two gas outlets in the horizontal direction.

FIG. 5 shows yet another embodiment of this invention, in which branch pipes 1 are arranged horizontally in three directions on the side wall of the solenoid valve main body 10.
1, 12, and 13'' are arranged in a T-shape, and a branch pipe 13'' in one direction is connected to the inner cylinder portion 16. As in the previous example, a branch pipe is provided downward on the bottom wall, and is configured so that two directions can be selected as a gas inlet and two directions as a gas outlet.

The characteristic functions and effects of this invention are as follows.

This idea provides branch pipes in three or four directions in the horizontal direction on the side wall, provides branch pipes in the downward direction on the bottom wall, and connects one or two of the horizontal branch pipes to the inner cylinder part 16. The electromagnetic valve main body 10 is cast by connecting and connecting other horizontal branch pipes to the side wall, and selecting one of the branch pipes connected to the side wall to form a gas inlet, and connecting it to the inner cylinder part 16. The gas outlet is formed by selecting either the continuous branch pipe or the downward branch pipe, and the directions of the gas inlet and the gas outlet can be set in any combination. for example,
When branch pipes in four directions are provided in the horizontal direction and a branch pipe in one direction is connected to the inner cylinder part 16, it is possible to select three directions as the gas inlet and two directions as the gas outlet. Taking into account the dimensional limitations of the control unit, the convenience of piping, etc., it is possible to arbitrarily set the direction that suits the installation conditions.

Therefore, in this invention, since the gas inlet and the gas outlet can each be selected from a plurality of directions, the relative positional relationship between the gas inlet and the gas outlet can also be freely set. For example, the relative positional relationship between the gas inlet and the gas outlet can be set arbitrarily to 90° to the right, 90° to the left, etc., and the relative positional relationship of the piping ports can be freely set, allowing for easy installation. The specifications have been expanded, and it is possible to adapt to various installation conditions by simply casting a single solenoid valve body.

Furthermore, if either the branch pipes connected to the inner cylinder part 16 or the downward branch pipes are selected in multiple directions and gas outlets are formed in multiple directions, it becomes possible to control the gas passages in multiple directions. It can also be effectively used as a main valve for gas appliances having multiple independent combustion parts, such as bathtubs.

In addition, this invention opens holes on each abutting surface of the selected branch pipe to form the gas inlet and gas outlet, so the abutting surfaces of other branch pipes are left unprocessed and closed. Although there is no risk of gas leakage and piping ports in multiple directions can be selected, the risk of gas leakage can be eliminated and the device can be used safely.

As described above, this invention can be adapted to various installation conditions by simply casting a single solenoid valve body, so it is useful for use in large water heaters that use multiple solenoid valves. , compared to manufacturing a solenoid valve suitable for each condition,
Overall, significant cost reductions can be achieved. It has practical effects such as:

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view of a conventional solenoid valve, Fig. 2 and the following are examples of this invention, Fig. 2 is a longitudinal sectional view of the solenoid valve body, and Fig. 3 is a cross section taken along line A-A in Fig. 2. Figure, 4th
The figure is a cross-sectional view of a solenoid valve body of another embodiment, and FIG. 5 is a cross-sectional view of a solenoid valve body of still another embodiment. 1... Solenoid coil, 2... Valve body, 3... Plunger, 10... Solenoid valve body, 11, 12, 1
3, 14...Horizontal branch pipe, 15...Downward branch pipe, 16...Inner cylinder portion, 16a...Top opening.

Claims (1)

[Claims for Utility Model Registration] 1. Branch pipes are provided in three or four directions horizontally on the side wall, branch pipes are provided in the downward direction on the bottom wall, and the inner cylindrical portion 16 is connected to the bottom wall with an interval in the side wall. One or two of the horizontal branch pipes are installed vertically in the inner cylinder part 16.
The solenoid valve main body 10 is cast by connecting another horizontal branch pipe to the side wall, selecting one of the branch pipes connected to the side wall, and drilling a hole in the contact surface to the side wall. to form a gas inlet, select either the branch pipe connected to the inner cylinder part 16 or the downward branch pipe, and open the contact surface to the inner cylinder part 16 or the contact surface to the bottom wall. A hole is formed to form a gas outlet, the electromagnetic coil 1 is placed on the electromagnetic valve main body 10, and the valve body 2 connected to the tip of the plunger 3 is inserted into the upper end opening 16a of the inner cylinder part 16.
A solenoid valve for gas appliances that is configured to be in contact with the 2. The solenoid valve for gas appliances according to claim 1 of the utility model registration claim, in which gas outlets are formed in multiple directions.