Fire adjustment device
A technology for regulating device and firepower, which is applied in the direction of regulating fuel supply, combustion method, and combustion control, and can solve problems such as inconsistent operation feeling and weight gain.
Inactive Publication Date: 2017-08-15
RINNAI CORP
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Problems solved by technology
In this way, when the direction F of the above-mentioned rotational force does not coincide with the moving direction M, the force acting in the swinging direction of the swing operating handle L is not effectively transmitted to the pin P as a rotational force, and as a result, the operating handle L is distorted. The operating feeling is inconsistent depending on the operating angle, and the operating feeling becomes heavier at both ends of the swing range.
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[0029] refer to figure 1 and figure 2 , symbol 1 is the fire power adjusting device of the present invention. Reference numeral 2 is an operating handle for adjusting the fire power, and is connected to a bracket 22 by a pin 23 , and the bracket 22 is held so as to be freely swingable around the swing shaft 21 . In addition, a spring 24 to be described later is provided under compression between the bracket 22 and the operating handle 2 .
[0030] In the above configuration, the operating handle 2 can swing in the left-right direction around the swing shaft 21 and can swing in the up-down direction around the pin 23 . In addition, the spring 24 acts to urge the front end of the operating handle 2 downward.
[0031] In this heating power adjusting device 1 , a conventionally known plug (not shown) such as Japanese Patent Application Laid-Open No. 9-159053 disclosed as the above-mentioned Patent Document 2 is incorporated. The plug is in the shape of a truncated cone, and a...
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In the existing fire power adjustment device that uses the operating handle that swings left and right to adjust the fire power, a connecting mechanism needs to be provided. When the plug is used as the fire power regulating valve, the connecting mechanism converts the swinging motion of the operating handle into a rotary motion toward the plug . As this connection mechanism, if a long hole is provided in the handle and a pin offset from the rotation center of the plug is inserted into the plug side, the operating force from the handle cannot be efficiently transmitted to the plug. In the present invention, the connecting mechanism is composed of a driving gear and a driven gear, wherein the driving gear is connected with the operating handle and has teeth arranged on a circumference centered on the swing center of the operating handle, and the driven gear Mesh with this driving gear and connect concentrically with the plug. By swinging the operating handle, the driving gear rotates the driven gear to rotate the plug.
Description
technical field [0001] The present invention relates to a fire power adjusting device mainly built in a gas furnace and capable of adjusting the gas supply amount supplied to a gas burner of the gas furnace by operating a freely swinging handle. Background technique [0002] As an existing fire power adjusting device of this kind, the following device is known: by setting the handle to be able to swing freely, and making the free end of the handle, i.e. the front end, swing in the left and right direction, to increase or decrease the combustion of gas toward the gas. The supply amount of the device is used to adjust the firepower (for example, refer to Patent Document 1). [0003] On the other hand, there is known a fire power adjusting device in which an opening is provided on the peripheral surface of a truncated conical part called a plug (Japanese: 闭子), and an opening is also provided on the peripheral wall of the part where the plug is accommodated. , the plug is rotat...
Claims
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IPC IPC(8): F23N1/00
Inventor 浅井一浩
Owner RINNAI CORP