JPS6244650B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a gas pressure regulating device used in general gas appliances or gas piping systems.

Conventionally, the configuration of a general gas pressure regulator, a so-called gas governor, was such that the primary gas pressure chamber and the secondary gas pressure chamber were integrally molded using aluminum die-casting, etc., so other piping that was the gas inlet and gas outlet was required. Connection ports with parts are fixed, and there is no flexibility in the installation direction when piping is installed, and gas leaks may occur due to unreasonable processing on the connecting pipe or excessive load being applied to the governor. It became one of the factors.

The present invention aims to overcome the drawbacks of the prior art.

The present invention provides a primary gas pressure chamber forming body having a gas inlet and a primary gas pressure chamber communicating with the gas inlet;
2 communicating with the primary gas pressure chamber and the gas outlet;
a secondary gas pressure chamber forming body having a secondary gas pressure chamber, and a diaphragm, a valve communicating with the diaphragm, and a valve seat for adjusting the gas flow rate through a gap with the valve are provided on the side of the primary gas pressure chamber forming body. In addition, the secondary gas pressure chamber forming body is detachably attached to the primary gas pressure chamber forming body, and the mounting direction thereof can be changed. The primary gas pressure chamber on the inlet side and the secondary gas pressure chamber on the outlet side are molded separately and can be separated, and the positional relationship between the gas inlet and gas outlet can be changed, making it possible to This has the effect of increasing the possible mounting directions when installing to a gas passage, etc., avoiding unreasonable piping, enabling rational piping, and further preventing gas leakage in the piping system including the governor.

An embodiment of the present invention will be described below based on the drawings.

In FIG. 1, a gas governor 1 has a primary gas pressure chamber forming body 2 made of aluminum die-casting and having a substantially square plane, and a gas inlet 3 is provided at one end surface of the primary gas pressure chamber forming body 2. A primary gas pressure chamber 4 is formed to be connected to the gas inlet 3, and a diaphragm valve 5 and a hemispherical valve 6 interlocked with the diaphragm valve 5 are provided in the primary gas pressure chamber 4. The inflowing gas flows into the secondary gas pressure chamber 9 of the secondary gas pressure chamber forming body 8 through the gap between the hemispherical valve 6 and the valve seat 7. The pressure regulating means in this gas governor 1 is a conventionally known one, in which primary gas pressure is applied to a diaphragm 5 which is biased by a pressure regulating spring 11 set to a certain constant strength by a pressure regulating screw 10. The gas pressure is regulated to a set gas pressure. The pressure regulating spring 11 includes a holding plate 12 and a receiving plate 13. Further, the upper opening of the primary gas pressure chamber forming body 2, that is, the back pressure side of the diaphragm 5, is sealed by a cap 14 and a fixed cap 15, which are press-molded products.

Like the primary gas pressure chamber forming body 2, the secondary gas pressure chamber forming body 8 has a substantially square plane, and the gas outlet 16 is provided on the opposite side to the inlet 3 as shown in FIG. ing. Further, the primary and secondary gas pressure chamber forming bodies 2 and 8 can be detachably connected by means of fixing screws 17 and 18 provided at each of the four corners, as shown in FIG. Further, both the forming bodies 2 and 8 are gas-sealed via a seal packing 19. Therefore, if four fixing screws 18 are used, for example, by making the mounting pitch P of the four fixing screws 18 the same and rotating the secondary gas pressure chamber forming body 8 by 90 degrees, the fixing screws 18 shown in FIGS. As shown in FIGS. 3 and 4, the inlet 3 or the outlet 16 can be changed in each of four directions. In other words, FIG. 2 shows the case where the inlet 3 and the outlet 16 are shifted by 180 degrees and are located on a straight line as in FIG. 1, FIG. 3 shows the case where they are located on the same plane, and FIG. The cases of shifting are shown below. In addition, as another condition, if the gas outlet 16 is shifted by 90 degrees in the opposite direction to that shown in FIG.
It is also possible to provide it on the left side of FIG.

In the above embodiment, four fixing screws 18 are arranged at the same pitch to fix the primary gas pressure chamber molded body 2 and the secondary gas pressure chamber molded body 8. If they are provided at equal intervals on the top, the direction can be changed by the number of fixing screws, and the number can be further increased.

According to the above-mentioned configuration, all the pressure regulating mechanisms are arranged in the primary gas pressure chamber forming body 2, so even if the secondary gas pressure chamber forming body 8 is detachable, the basic gas pressure regulating performance remains unchanged. It is also possible to change direction at any time without having to re-inspect. Also, the direction change is 1
This is possible by converting only either the secondary or secondary gas pressure chamber forming bodies 2 and 8, making it possible to share it with many models and prevent cracks in pipes or gas leaks from connections due to unreasonable piping. It can be prevented.

As described above, the present invention allows for a plurality of combinations of the positional relationships between the gas inlet and the gas outlet in one gas regulating device, and allows the connecting pipe to have the shortest distance in piping. Moreover, it has great effects, such as realizing the miniaturization of gas appliances, etc., which allows for rational piping by avoiding unnecessary piping, unnecessary space, and unnecessary force.

[Brief explanation of the drawing]

Fig. 1 is a side sectional view of a gas pressure regulating device that is an embodiment of the present invention, and Figs. 2 to 4 are front views of the secondary gas pressure chamber forming body when it is changed in three directions. It is. 1...Gas governor (gas pressure adjustment device), 2...
...Primary gas pressure chamber forming body, 3...Gas inlet, 4...
...Primary gas pressure chamber, 5...Diaphragm, 6...
Valve, 7... Valve seat, 8... Secondary gas pressure chamber forming body, 9
...Secondary gas pressure chamber, 16...Gas outlet, 18...
...Fixing screw.

Claims (1)

[Scope of Claims] 1. A primary gas pressure chamber forming body having a gas inlet and a primary gas pressure chamber communicating with the gas inlet;
a secondary gas pressure chamber forming body having a secondary gas pressure chamber communicating with a secondary gas pressure chamber and a gas outlet; a diaphragm on the side of the primary gas pressure chamber forming body; a valve interlocked with the diaphragm; A gas pressure adjustment device is provided with a valve seat for adjusting the gas flow rate through a gap, and a secondary gas pressure chamber forming body is detachably attached to the primary gas pressure chamber forming body, and the mounting direction thereof is variable. Device. 2. Claim 1, wherein the secondary gas pressure chamber forming body is detachable using a plurality of fixing screws, and the pitch between the fixing screws is the same, and the mounting direction is variable by the same number as the number of fixing screws. Gas pressure regulating device as described.