JPS6234129Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a gas adjustment valve for a gas range used for commercial purposes.

When adjusting the amount of fuel gas in a gas range used for commercial purposes, it is necessary to adjust the amount of air at the same time. However, none of the conventional gas ranges of this type satisfies the ratio between the fuel gas and the air amount over the entire adjustment range.

The present invention provides a gas regulating valve that solves these problems.The feature is that it has a mixed gas outlet at one end, and a gas intake and a gas intake at opposite positions on the circumference. A cylinder is provided with an air intake port, the cylinder is fitted into the cylinder so as to be able to slide in the axial direction, a baffle plate is provided protruding from the end face, and the baffle plate is inserted between the gas intake port and the air intake port. , a sliding piece arranged to face perpendicularly to the axis of the intake port, a handle shaft inserted into the cylinder, a pinion fixed to the shaft, and the pinion attached to the sliding piece. and a drive means meshed with a rack formed in the same manner.

The present invention will be described below with reference to embodiments shown in the drawings. Figure 1 shows a typical commercial gas range. Gas range 1 like this
is equipped with an air pipe 2 and a fuel gas pipe 3, and a gas adjustment valve 4 is disposed between them, and the valve mixes air and gas appropriately, and this mixed gas is sent to the burner 5. I'm letting you do it. The present invention relates to such a gas regulating valve, and as shown in FIG.
4, a sliding piece 15 that slides inside the cylinder, and a driving means 16 for the sliding piece. Among the above-mentioned ports, the mixed gas delivery port 11 is formed at the end of the cylinder 14, and the air intake port 12 and the gas intake port 13 are formed at opposing positions on the circumferential surface of the cylinder 14, respectively. Furthermore, the gas intake port 13 is constituted by a plurality of holes 13a, and the opening areas of the holes 13a are formed so as to become smaller in sequence toward the mixed gas delivery port 11. The sliding piece 15 has a baffle plate 17 protruding from its end face, and the length of the baffle plate is such that even when the sliding piece 15 is moved to the leftmost position in the figure, the air intake port 12 and the gas The length is set so that it does not come off the extension line (plane) of the intake port 13. Drive means 16 for sliding piece 15
In this case, the rear part of the cylinder 15 is cut in half, a rack 18 is grafted onto the surface thereof, a pinion 20 on a shaft 19 extending through the cylinder 14 is engaged with the rack, and a handle 21 is arranged on the shaft. It is. In addition, in Fig. 2, 22 is Patsukin, 2
3 is an air introduction pipe, and 24 is a nipple for connecting a gas pipe.

The operation of the gas regulating valve described above will be explained below. Air and gas supplied via the air inlet pipe 23 and the gas pipe connection nipple 24 enter the cylinder 14 through the respective air intake 12 and gas intake 13, and they are mixed in the mixing chamber 25 of the cylinder 14. The mixed gas is then fed to the burner 5 from the mixed gas outlet 11. At this time, the interference plate 17 protruding from the end face of the sliding piece 15 prevents rapid mixing of the air and gas introduced into the cylinder 14.
If you want to throttle the mixed gas fed to the burner 5 at this point, if you operate the handle 21 and slide the sliding piece 15 to the right in FIG.
The sliding piece 15 gradually closes the opening of the air intake port 12 to reduce the amount of air taken in, and also blocks some of the holes 13a of the gas intake port 13 to reduce the amount of gas taken in. Therefore, by arranging the holes 13a of the gas intake port 13 at appropriate positions and areas, it is possible to satisfy the desired air-gas mixture ratio over the entire adjustment range.

In the above embodiment, the hole 13a is connected to the nipple 24.
However, the hole may be formed in the thin wall portion left by counterboring the outer peripheral surface of the cylinder 14.

As described above, the gas adjustment valve for a gas range according to the present invention has a baffle plate installed between the gas intake port and the air intake port, which are arranged opposite to each other, in a direction perpendicular to the axis of the intake ports. Since they are arranged so that they face each other, and the baffle plate is moved only in the axial direction of the cylinder, the baffle plate is always maintained in a favorable position with respect to both intake ports, thus preventing the mixing of gas and air. is done gently. Further, in the valve according to the present invention, since the sliding piece is driven by a rack and a pinion, the operation is reliable and easy to operate.

[Brief explanation of drawings]

FIG. 1 is a conceptual perspective view showing a general commercial gas range, and FIG. 2 is a vertical cross-sectional perspective view of a gas regulating valve according to the present invention. 11... Mixed gas outlet, 12... Air intake port, 13... Gas intake port, 13a... Hole, 14...
... cylinder, 15 ... sliding piece, 16 ... drive means, 17 ... jamming plate.

Claims (1)

[Scope of utility model registration request] A cylinder is provided with a mixed gas outlet at one end, and a gas intake port and an air intake port are formed at opposite positions on the circumferential surface, and the cylinder is fitted into the cylinder so as to be able to slide in the axial direction, a sliding piece having a protruding baffle plate and disposed between the gas intake port and the air intake port so as to face perpendicularly to the axes of the intake ports;
A gas adjustment for a gas range, characterized in that the handle shaft is inserted into the cylinder, a pinion is fixed to the shaft, and the pinion is engaged with a rack formed on the sliding piece. valve.