JPH10311511A - Nozzle fixing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a nozzle fixing device which is inexpensive, excellent in workability, and free from any gas leakage. SOLUTION: A nozzle fixing device 27 is provided with a gas pipe 1 on which a projected part 4 is formed, a fitting plate 5 inserted in the gas pipe 1, a nozzle 8 having a recessed part 14 formed inside and a fitting part 9 formed outside, a fixing plate 15 to be abutted on both the fitting part 9 and the fitting plate 5, and tightening bodies 23, 25 to tighten the fixing plate 15 and the fitting plate 5. The gas pipe 1 is inserted in the nozzle 8 so as to hold an elastic body 25 and the projected part 4 between an upper surface of the recessed part 4 and the fitting plate 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a nozzle fixing device used for gas appliances.

[0002]

2. Description of the Related Art Conventionally, in gas appliances, for example, Japanese Unexamined Patent Publication No.
As shown in Japanese Patent No. 32689, the nozzle is screwed to a mating part. For example, as shown in the sectional view of FIG. 5, the nozzle holder 61 is provided with two convex portions 62 and 63, and the convex portions 62 and 63 are formed with threaded holes. The other end of the nozzle holder 61 is connected to a gas pipe 64. One end of each of the nozzles 65 and 66 is threaded, and after a sealant is applied to the threaded portions, the nozzles are screwed into the holes of the projections 62 and 63, respectively. The nozzles 65 and 66, the nozzle holder 61, the sealant and the like constitute a nozzle fixing device 67.

[0003]

As described above, in the above-described nozzle fixing device 67, the nozzles 65 and 66 and the convex portions 62,
The first drawback is that the cost is increased because the nozzle holder 63 is formed by cutting the screw 63 and using an expensive aluminum die casting. Further, since the sealing agent is applied to the nozzles 65 and 66 and screwed, there is a second disadvantage that workability is poor. In addition, since the application of the sealant is usually performed manually, there is a large variation in the operation, and there is a third disadvantage that gas leakage may occur at the screwed portion. Therefore, the present invention provides a nozzle fixing device which is inexpensive, has good workability, and has no risk of gas leakage, in consideration of such conventional disadvantages.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a gas pipe having a protruding portion, a mounting plate inserted into the gas pipe, a concave portion formed inside and an external portion. A nozzle having a formed mounting portion, a fixing plate that abuts the mounting portion and abuts the mounting plate, and a fastening body that fastens the fixing plate and the mounting plate. A gas pipe is inserted into the nozzle so as to be held between the nozzle and the mounting plate.

[0005] The present invention desirably comprises a mounting plate rotatable with respect to the gas pipe.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A nozzle fixing device according to an embodiment of the present invention will be described with reference to FIGS. FIG.
Is a cross-sectional view of a gas combined cooker using the nozzle fixing device,
FIG. 2 is an exploded perspective view of the gas combined cooker, FIG. 3 is a sectional view of a main part of the gas combined cooker, and FIG. 4 is a sectional view of the nozzle fixing device.

In these figures, a gas pipe 1 is made of, for example, an iron pipe or the like. As shown in FIG. 2, the left side is bent in a substantially S-shape, and a flange plate 2 is attached to the left end thereof. Is attached to the valve 3. The right side of the gas pipe 1 is bent in an L shape, and a protruding portion 4 is formed near the right end so as to expand outward. The protrusion 4 is formed by, for example, bridge processing.

The mounting plate 5 is made of, for example, an iron plate, and has a through hole 6 near the center, and two holes 7 near both ends. The gas pipe 1 is inserted into the through hole 6 of the mounting plate 5, and the upper surface of the mounting plate 5 is in contact with the bottom surface of the projection 4 of the gas pipe 1.

The nozzle 8 is made of, for example, brass or the like, and is provided with a mounting portion 9 having a flat surface, a straight portion 10, and an inclined portion 11, which are formed stepwise on the outside. A gas outlet 12 is formed at the tip of the nozzle 8, and the gas outlet 12 is formed.
The guide portion 13 is connected to the inclined portion, and the concave portion 14 is connected to the guide portion 13. The guide portion 13 is formed linearly as shown in FIG.
Numeral 4 is formed in a substantially stepped shape toward the outside so as to be larger than the inner diameter of the guide portion 13.

The fixing plate 15 is made of, for example, an iron plate or the like. A through hole 16 is formed near the center, bent portions 17 and 18 are formed on the left and right, and horizontal portions 19 and 20 are formed so as to be continuous with the bent portions 17 and 18. ing. Holes are formed at appropriate places in the horizontal portions 19 and 20, and holes 21 and 22 are formed near the upper and lower ends of the fixing plate 15. As described above, the bottom surface of the bent portion 17 and the bottom surface of the bent portion 18 formed on the fixed plate 15 abut against the mounting portions 9, 9 of the nozzle 8, respectively, and the horizontal portion 1 formed on the fixed plate 15 is formed.
9 and 20 are in contact with the upper surface of the mounting plate 5.

The fastening members 23 and 24 are, for example, screws or the like,
The fixing plate 15 and the mounting plate 5 are fastened. The elastic body 25 is, for example, an O-ring having elasticity, and is disposed between the upper surface 26 of the concave portion 14 formed in the nozzle 8 and the upper surface of the projecting portion 4 formed in the gas pipe 1. Thus, the elastic body 2
The gas pipe 1 is inserted into the nozzle 8 so that the projection 5 and the projection 4 are held between the upper surface 26 of the recess 14 and the mounting plate 5.

Preferably, as described above, the gas plate 1 is inserted into the through hole 6 of the mounting plate 5 so that the mounting plate 5 is
It is configured to be rotatable with respect to. The nozzle fixing device 27 is constituted by these components.

As shown in FIG. 2, the damper 28 is inserted into a damper mounting plate 29, and the fixing plate 15 is fixed to the damper 28 and the damper mounting plate 29 by screws 30. The damper mounting plate 29 is fixed to the burner fixing plate 32 by screws 31, the frame rod 33 and the ignition plug 34 are fixed by the plug fixing plate 35 and the plug mounting plate 36, and these components are fixed to the burner fixing plate 32. . The burner supporting plates 37 and 38 are fixed to a gas burner 39, and a part of the gas burner 39 is inserted and held in a cutout 40 formed in the burner fixing plate 32.

Next, as shown in FIG. 1, a magnetron 42 is arranged above a cooking chamber 41 made of an iron plate coated with an enamel or the like, and a turntable 43 is arranged below the cooking chamber 41. The valve 3 is arranged below the cooking chamber 41, the gas inlet pipe 44 is connected to the inlet of the valve 3, and the gas pipe 1 is connected to the outlet of the valve 3.

The combustion chamber 45 is provided behind the cooking chamber 41, and the gas burner 39 and the circulation fan 46 are connected to the combustion chamber 45.
Is located within. The exhaust pipes 47, 48, 49 are connected to each other and arranged behind and above the cooking chamber 41. The door 50 is disposed in front of the cooking chamber 41, and
1 is arranged above the cooking chamber 41. These components constitute the present gas composite cooker 52.

[0016]

As described above, according to the present invention, since the nozzle fixing device is constituted by the gas pipe, the mounting plate, the nozzle, the fixing plate, the elastic body, the fastening member, and the like, an expensive nozzle holder as in the prior art is not used. Therefore, the cost is reduced. And like before,
Since there is no need to thread the nozzle or nozzle holder, the cost is further reduced.

Further, in order to fix the nozzle to the gas pipe,
Since the fixing plate and the mounting plate are fixed by the fastening body, it is not necessary to screw the nozzle to the nozzle holder (spiral rotation) as in the related art, thereby improving workability.

Further, since gas sealing is performed by an elastic body without applying a sealing agent for the screw portion of the nozzle by hand as in the prior art, there is no danger of gas leakage.

Further, by gas sealing with an elastic body and integrally fixing the nozzle, the gas pipe, the fixing plate and the mounting plate,
Gas leak inspection becomes easy.

In the present invention, since the mounting plate is desirably rotatable with respect to the gas pipe, the fixing plate fixed to the mounting plate also becomes rotatable. As a result, it becomes easier to align the hole of the fixing plate with the hole of the mating component (for example, the damper mounting plate),
By fastening the holes, the fixing plate is securely fixed, and the fixing plate fixing operation is facilitated.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a gas composite cooker using a nozzle fixing device according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of the gas composite cooker.

FIG. 3 is a cross-sectional view of a main part of the gas composite cooker.

FIG. 4 is a sectional view of the nozzle fixing device.

FIG. 5 is a sectional view of a conventional nozzle fixing device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Gas pipe 4 Projection part 5 Mounting plate 8 Nozzle 9 Mounting part 14 Depression 15 Fixing plate 23, 24 Fastening body 25 Elastic body

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Matsushita Kaji, 3-201 Minamiyoshikata, Tottori City, Tottori Prefecture Inside Sanyo Electric Co., Ltd. (72) Inventor Kunimoto Kuramoto 3-201, Minamiyoshikata, Tottori City, Tottori Electric Co., Ltd.

Claims (2)

[Claims] 1. A gas pipe having a projecting portion, a mounting plate inserted into the gas pipe, a nozzle having a concave portion formed inside and a mounting portion formed outside, and A fixing plate that is in contact with and abuts the mounting plate, and a fastening body that fastens the fixing plate and the mounting plate, wherein the elastic body and the protruding portion are held between the upper surface of the concave portion and the mounting plate. A nozzle fixing device, wherein the gas pipe is inserted into the nozzle to make it possible. 2. The nozzle fixing device according to claim 1, wherein the mounting plate is rotatable with respect to the gas pipe.