JP3086458U - Water heater blower - Google Patents

Abstract

(57) [Summary] (with correction) [Problem] To improve the sounding function of a sounding device attached to a spout of a water heater to emit a harmonica sound and a malfunction of the sounding function due to thermal deformation and the like, and to provide a complete sounding device. SOLUTION: A lid 1 for opening and closing a spout 22 of a water heater 21 is formed in a hollow shape, and a closing plate 2 for closing a lower edge opening portion of the hollow lid is provided. A hole 3 is drilled, and a hollow 4 of the hollow lid is provided with a lead support plate 6 in which a mechanism for vibrating a lead plate 5 to generate sound is provided above the steam ejection hole. Is provided with a shield 7 for preventing water drops condensed on the lead plate from falling and flowing into the steam jetting hole, and a drain hole 8 for discharging the hollow lid to the outside thereof. A support plate, a shield, and a closing plate are integrally attached to a boss portion 10 integrally protruded from a zenith portion 9 of the hollow lid by a screw 11, and a coil spring 12 is provided between the closing plate and the shield. Interposed, the lead support plate is floated at the boss portion, and the lead support plate is closed around the inner surface of the hollow lid. Let me wear it.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a sound blower attached to a spout of a water heater to emit a harmonica sound, and more particularly to a sound blower of a water heater capable of improving a malfunction caused by a manufacturing error of the device.

[0002]

[Prior art]

 2. Description of the Related Art Conventionally, a blowing device that blows a harmonica sound when water contained in a water heater boils has been disclosed in, for example, Japanese Utility Model Publication No. 57-44900 invented by the present applicant. A hollow lid (enclosure), a harmonica lead support plate, a shield, and a closing plate assembled in the internal space of the hollow lid, and a boss portion formed integrally with the hollow lid. It is composed of screws (bolts) for mounting and fixing.

[0003] The hollow lid, which is a component of the above-described conventional water heater blower, is almost made of a thermoplastic resin in terms of cost, design, workability, assembling workability, and the like. I have. Due to the nature of the thermoplastic resin, the boss portion is easily deformed by the torque of a screw screwed into the female hole of the boss portion of the hollow lid, and the lead support plate is made smooth by an excessive screwing torque. And the lead support plate is deformed and deformed, and furthermore, the hollow lid undergoes thermal deformation due to heating from a water heater in use or heat radiation from a gas stove or the like, and the inner surface of the hollow lid is deformed. There is often a gap between the outer periphery of the harmonica lead support plate and water vapor leaks out of the gap and is discharged to the outside. Could not be secured, and there were problems such as the sound of the harmonica being reduced and no sound being produced.

In order to solve the above-mentioned trouble, a small metal pipe (coloring) is interposed between the closing plate and the shield to separate the shield from the closing plate. An improved structure has been proposed to prevent uneven addition to the harmonica lead support plate.

As a result, even when there is a press error between the closing plate and the shield, the contact pressure and the degree of adhesion of the harmonicalized support plate to the hollow lid are remarkably uniformed.

[0006]

[Problems to be solved by the invention]

 However, since the hollow lid was made of a thermoplastic resin, it was impossible to completely prevent thermal deformation, and it was found that it was difficult to form a complete sounding device.

[0007] From these results, in order to stabilize the pushing pressure of the harmonica lead support plate into the hollow lid, an elastic coil spring is used instead of the above-mentioned coloring, and the boss into which the screw is screwed is used. By reducing the outer diameter and floating the harmonica lead support plate without fixing it at the boss portion, it has been found that it is optimal to bring the harmonica lead support plate into contact with the inner peripheral portion of the hollow lid. .

[0008]

[Means for Solving the Problems]

 The present invention has been made in view of the above point of view, and its main configuration is that a lid for opening and closing a spout of a water heater is formed in a hollow shape, and a lower edge opening of the hollow lid is closed. A vapor discharge hole is formed in the cover plate, and a lead plate vibrates and emits sound in the space above the vapor discharge hole in the hollow chamber of the hollow lid when the vapor flows. Is provided, and a shield is provided in the hollow chamber to prevent and guide water droplets condensed on the lead plate from falling and flowing into the steam ejection hole located therebelow. The hollow lid is provided with a drainage hole for discharging the water guided by the shield to the outside of the hollow lid, and the lead support plate, the shield, and the closing plate are attached to the top of the hollow lid. Sounding of a water heater that is integrally attached with a screw to the boss part that sticks out from the In the above, there is provided a blower for a water heater in which a coil spring is interposed between the closing plate and the shield, and the lead support plate is floated at a boss portion and closely adhered to an inner peripheral portion of the hollow lid. It is assumed that.

Further, the coil spring is intended to provide a boiler for a water heater as a required spring constant.

[0010] Further, the outside diameter of the boss portion may be formed as small as possible within a range that does not interfere with the creation of a screw hole for a screw provided in the center axis and the physical strength. It is something to offer.

[0011]

[Embodiment of the invention]

 Next, the configuration of one embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a longitudinal sectional view of a main part showing a state in which the blower according to the present invention is attached to a water heater, and FIG. 2 is a perspective view of each part showing the blower in an exploded state. The lid 1 that opens and closes the spout 22 of the water heater 21 is formed in a hollow shape. A closing plate 2 for closing a lower edge opening of the hollow cover 1 is provided. The closing plate 2 is provided with a steam ejection hole 3.

In the hollow chamber 4 of the hollow lid 1, a lead support plate 6 is provided above the steam ejection hole 3, which incorporates a mechanism for vibrating the lead plate 5 to generate sound when steam flows. The hollow chamber 4 is provided with a shield 7 for preventing water droplets condensed on the lead plate 5 from falling and flowing into the steam ejection hole 3 located below the shield plate 7.

The hollow lid 1 is provided with a drainage hole 8 for discharging the water guided by the shield 7 to the outside of the hollow lid 1.

The lead support plate 6, the shield 7, and the closing plate 2 are integrally attached to a boss portion 10 integrally protruded from a zenith 9 of the hollow lid 1 by screws 11.

A coil spring 12 having a relatively gently required spring constant is interposed between the closing plate 2 and the shield 7, and the lead support plate 6 is floated by a boss portion 10 so as to float the hollow lid. 1 are adhered to the inner peripheral portion.

The outer diameter of the boss portion 10 is formed as small as possible without impairing the creation of the screw hole and the physical strength of the screw 11 provided on the center axis thereof.

[0017]

[Effect of the invention]

 As is clear from the above description, according to the water heater blowing device of the present invention, the lid for opening and closing the spout of the water heater is formed in a hollow shape, and the lower edge opening of the hollow lid is closed. A closing plate is provided, and a steam ejection hole is formed in the closing plate. A mechanism is provided in the hollow chamber of the hollow lid above the steam ejection hole so that the lead plate vibrates and emits sound when the steam flows. The hollow chamber is provided with a shielding member for preventing water droplets condensed on the lead plate from falling and flowing into the steam ejection hole located therebelow. The body is provided with a drainage hole for discharging the condensed water droplets guided by the shield to the outside of the hollow lid, and the lead support plate, the shield, and the closing plate are removed from the zenith of the hollow lid. A water heater that is integrally attached to the boss part that is sticked out with a screw In the blower of the vessel, in particular, a coil spring having a required spring constant is interposed between the closing plate and the shield, and the lead support plate is floated at the boss portion to make contact with the inner peripheral portion of the hollow lid. Because of this, thermal deformation of the hollow lid and accuracy errors during molding, manufacturing (press) errors in lead plates, shields, closing plates, etc., and variations in screwing torque of screws As a result, the reduction of the contact pressure and the degree of contact between the peripheral edge of the lead support plate and the hollow chamber surface of the hollow lid is significantly improved.

[0018] Furthermore, since the pressure for pushing the lead support plate into the hollow lid is substantially constant, the smoothness of the lead support plate is maintained, and poor sounding due to deformation of the lead support plate is improved. This ensures that the required loud noise is generated.

Further, since the outer diameter of the boss portion is formed as small as possible without impairing the creation of the screw hole of the screw provided on the central axis and the physical strength, the boss portion has a hollow cover. Even if shrinkage occurs after the injection molding, the lead support plate is not distorted, and the occurrence of blow noise is improved.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a main part showing a state in which a blower according to an embodiment of the present invention is attached to a water heater.

FIG. 2 is a perspective view of each part showing a state in which the blowing device according to the embodiment of the present invention is disassembled.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hollow lid 2 Closure plate 3 Steam ejection hole 4 Hollow chamber 5 Lead plate 6 Lead support plate 7 Shield 8 Drainage hole 9 Zenith of hollow lid 10 Boss part 11 Screw 12 Coil spring 21 Water heater 22 Spout port

Claims (3)

[Utility model registration claims] 1. A lid for opening and closing a spout of a water heater is formed in a hollow shape, and a closing plate for closing a lower edge opening of the hollow lid is provided, and a steam ejection hole is formed in the closing plate. In the hollow chamber of the hollow lid, a lead support plate incorporating a mechanism that vibrates and emits a lead plate when steam flows is provided at a position above the steam ejection hole, and the hollow chamber includes the lead support plate. A shield is provided to prevent water drops condensed on the lead plate from falling and flowing into the steam ejection hole located below the shield, and the hollow lid is configured to remove water guided by the shield from the hollow lid. A drain hole is provided for discharging the liquid to the outside of the water heater, and the lead support plate, the shield, and the closing plate are integrally attached to a boss portion integrally protruded from the zenith part of the hollow lid by a screw. In the sounding device, a coil spring is interposed between the closing plate and the shield. Sounding apparatus boiler, characterized in that the lead support plate by float boss portion becomes in close contact with the inner surface periphery of the hollow lid. 2. The buzzer for a water heater according to claim 1, wherein said coil spring has a required spring constant. 3. The outer diameter of the boss portion is formed as small as possible within a range that does not hinder the creation and physical strength of a screw hole of a screw provided on the center axis thereof. Boiler for water heater.