JPH045887Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a control device for a liquid fuel combustion device equipped with an anti-seismic fire extinguishing device and a fuel supply device during power outage.

(Prior art) There are various types of liquid fuel combustion devices.
Broadly speaking, they can be divided into those that do not use commercial power and those that do. Conventionally, types that use commercial power have normally operated to extinguish the fire in the event of a power outage, preventing combustion from occurring until the power is restored. However, in consideration of long-term power outages, types that use commercial power have recently been provided that allow combustion during power outages. This will be explained below with reference to FIGS. 4 and 5.

Referring to FIG. 4, the liquid fuel combustion apparatus includes a combustion tube 20 erected on a pedestal 21, a pot burner 22 disposed at the bottom of the combustion tube 20, and an equipment box 23 installed on the pedestal 21. We are prepared. Equipment box 23
An oil level regulator 24 is disposed inside, and on the oil level regulator 24, in addition to an electromagnetic pump 25, an anti-seismic fire extinguishing device, a fuel supply device during a power outage, etc., which will be described later, are provided. 26
Numerals a, 26b, and 26c are oil feed pipes that feed fuel into the pot burner 22 using the head pressure of the oil level regulator 24 or the electromagnetic pump 25, respectively.

FIG. 5 shows a control device equipped with a power outage fuel supply device that enables combustion of a liquid fuel combustion device during a power outage.

Reference numeral 30 denotes an anti-seismic fire extinguishing device disposed on the constant oil leveler 24, which is composed of a seismic weight 31 and a seismic lever 33 pivotally supported on a shaft 32.
It can be rotated freely around the center. Further, the seismic weight 31 holds the seismic lever 33 in a horizontal state, and is designed to fall down when the oil leveling device 24 is tilted, thereby releasing the seismic lever 33 from the locked state.

40 is a fuel supply device during power outage, and horizontally long lever 4
1, a support body 42 that pivotally supports the lever 41, and a valve rod 43 extending downward from the tip side of the lever 41.
and an oil feed pipe 26a extending from the lower side of the oil level regulator 24.
(See FIG. 4) and an on-off valve for an oil feed pipe 26a, which is housed in the oil pipe 26a and attached to the lower end of the valve rod 43. The valve lever 43 is provided with a spring that biases it downward, and the lever 41 is provided with a protrusion 41a extending toward the control box 60 at approximately the center in the longitudinal direction. A control box 60 is for controlling the electromagnetic pump 25 and houses a switch.

Reference numeral 50 denotes a linking plate that links the anti-seismic fire extinguishing device 30 and the power outage fuel supply device 40, and includes a vertical portion 51 extending in the vertical direction, a first continuous portion 52 extending laterally from the vertical portion 51, and The second continuous part 53 extends perpendicularly from one end of the first continuous part 52, a lever fixing spring 54 screws onto the second continuous part 53 and extends downward, and a rotation shaft 55. The vertical portion 51 is biased downward by a spring 56, and is supported at one end side of the vibration sensing lever 33 when the vibration sensing lever 33 is horizontally locked.
The continuous portion 52 and the second continuous portion 53 are in a horizontal state. Further, the lever fixing spring 54 includes a vertical piece 54a and a horizontal piece 54b extending laterally from the vertical piece 54a. Approximately in the vertical center of the vertical piece 54a is a locking portion 5 that bulges toward the anti-seismic fire extinguishing device 30 side.
4c is provided, and the lever 4 of the fuel supply device 40 during power outage is provided.
When pushing the rear end of the lever 41 downward against the biasing spring of the valve lever 43 to bring the lever 41 into a horizontal state, one widthwise end of the lever 41 is locked to the lower part of the locking portion 54c. It's becoming like that.

Under normal conditions, the pot burner 2 is controlled by the electromagnetic pump 25.
2 (Fig. 4) to perform combustion.
Further, in the event of a power outage, by pressing down the lever 41, liquid fuel is supplied from the oil level regulator 24 to the pot burner 22 via the oil feed pipe 26a to continue combustion.
Furthermore, in the event of an earthquake, etc., the supply of liquid fuel from each oil pipe 26a, 26b to the pot burner 22 is stopped,
Combustion within the pot burner 22 is stopped.

This type of liquid fuel combustion device was developed, for example, in the 1980s.
- It is shown in the publication No. 170855.

(Problems to be Solved by the Invention) By the way, the control device shown in FIG. 5 has a dimensional problem because it is necessary to provide the linking plate 50 so as to straddle the lever 41 from the vibration sensing lever 33. In other words, the space above the oil level regulator 24 is
It is desirable that it be as small as possible from the perspective of space saving. From another point of view, the limited equipment box 23
In order to make effective use of the internal space, other components may be attached to the space above the oil level regulator 24, and for this reason, the anti-seismic fire extinguishing system and the fuel supply system during power outage need to be made as compact as possible. There is.

The present invention was made in view of such needs, and an object thereof is to make a control device for a liquid fuel combustion device as compact as possible.

(Means for Solving Problems) The present invention consists of an electromagnetic pump for supplying liquid fuel to the burner through an oil feed pipe, an earthquake-sensing lever, and a switch for de-energizing the electromagnetic pump in the event of an earthquake, etc. an anti-seismic fire extinguishing system comprising: a fuel on-off valve energized in the direction of closing the oil feed pipe that bypasses the electromagnetic pump; and a fuel valve on-off lever for driving the fuel on-off valve; In the control device for a liquid fuel combustion device, the control device includes a fuel supply device during a power outage that can supply fuel to the burner, and a first lever for opening and closing the switch and one end of the fuel valve opening/closing lever are engaged when the fuel valve opening/closing lever is operated. The invention is characterized in that it includes a rotatable lever that is integrated with a second lever for stopping, and is provided so that the lever is biased in one direction and this bias is stopped by the switch. .

(Function) Regarding the anti-seismic fire extinguishing system, the control device according to the present invention is such that when the seismic section is activated due to an earthquake, etc., the seismic lever applies a force in the opposite direction to the biasing direction to the first lever of the levers. When the first lever is turned away from the switch, the switch is opened and the electromagnetic pump is de-energized. On the other hand, in the event of a power outage, the fuel valve on the oil pipe that bypasses the electromagnetic pump is opened by operating the fuel valve on/off lever, and liquid fuel is supplied to the burner using the head pressure of the oil level regulator. Note that when operating the fuel valve opening/closing lever, the fuel valve opening/closing lever is the second
The fuel on/off valve is latched by the lever in the open state, and when the vibration sensing part is activated, the driving force from the vibration sensing lever acts on the first lever, so that the second lever is also biased in the opposite direction to the direction in which the lever is biased. By rotating to
Release the fuel valve opening/closing lever.

(Example) An example of the present invention will be described with reference to FIG.
The same parts as in FIG. 5 are given the same numbers. The fuel valve opening/closing lever 11 is rotatably provided between two supports 12 erected on the upper surface of the oil level regulator 24 with a pin 111 as a fulcrum. The tip of the fuel valve opening/closing lever 11 is bifurcated, and a pin 112 provided at the bifurcated portion can be engaged with a second lever 13b of the lever 13, which will be described later. A valve rod 14 for a fuel on-off valve is also provided at the bifurcated portion of the fuel valve on-off lever 11, and the on-off valve attached to the lower end of this valve rod 14 is connected to an oil feed pipe 26a (see FIG. 4). is housed in. Note that the valve rod 14 is biased downward by a spring (not shown), that is, in a direction that closes the on-off valve. The fuel valve opening/closing lever 11 is bent in the middle to avoid contact with the seismic weight 31.

The seismic lever 15 is rotatably provided around a pin 151, and rotates counterclockwise in the figure when the seismic weight 31 falls down upon sensing vibrations such as an earthquake.

A switch 16 for turning on and off the power to the electromagnetic pump 25 is provided at the bottom of the support 12.

The lever 13 includes a first lever 13a extending horizontally to open and close the switch 16, and a pin 11.
2 and a second lever 13b extending vertically to engage the fuel valve opening/closing lever 11. The lever 13 is also rotatably supported by a pin 131 and biased counterclockwise in the figure by a spring 132. Referring also to FIG. 3, the first lever 13a is provided with a tongue piece 133a at a location corresponding to the tip of the shock-sensing lever 15, and a tongue piece 133b at a location directly below the switch 16. There is. In this way, the lever 13a
3b presses the contact part of switch 16 and switches 1
6 is closed, while the switch 16 prevents the switch 16 from rotating upward in FIG. 3 due to the biasing force of the spring 132. On the other hand, a receiving portion 134 including a triangular protrusion is provided at the tip of the second lever 13b.

The operation will be explained below.

During combustion, the lever 13 is biased counterclockwise in the figure by the spring 132;
The tongue piece 133b of a is at rest in a state where the switch 16 is pressed to close it.

When the seismic weight 31 falls down due to an earthquake or the like, the seismic lever 15 rotates counterclockwise in FIG. 1, pushes down the tongue 133a of the first lever 13a, and moves the lever 13 clockwise in the drawing Rotate. In this way, the tongue piece 133b of the first lever 13a
When the switch 16 is opened, the power to the electromagnetic pump 25 is cut off, and the fuel supply is cut off, thereby extinguishing the fire. This state is a seismic weight 31
continues until reset.

On the other hand, if a power outage occurs during combustion, all electrical equipment will stop, so the fire should be extinguished. However, when the fuel valve opening/closing lever 11 is pressed down, the tip side of the fuel valve opening/closing lever 11 rotates clockwise in the figure.
The on-off valve of the oil feed pipe 26a (see FIG. 4) is opened via the valve rod 14. At the same time, the pin 112 crosses the protrusion in the receiving part 134 of the second lever 13b and engages in the recess. As a result, the fuel valve opening/closing lever 11 is held in the depressed state. In this way, combustion can be restarted even under power outage conditions. If there is an earthquake that causes the seismic weight 31 to fall, the second lever 13b will rotate clockwise in the figure in the same manner as described above. By the way, there is a valve rod 1 on the tip side of the fuel valve opening/closing lever 11.
4 is always urged downward, so that a rotational force acts in the counterclockwise direction in the figure. Therefore,
When the second lever 13b is released, the fuel valve opening/closing lever 11 returns to its original state. This cuts off the fuel supply and extinguishes the fire. In addition,
Combustion during power outages occurs through natural ventilation because there is no supply of combustion air through forced ventilation.

As described above, in this embodiment, the engagement relationship between the first lever 13a and the switch 16, and the second lever 13b and the fuel valve opening/closing lever 11 in the lever 13 is improved. Space can be reduced. Specifically, the rotation axes of the fuel valve opening/closing lever 11, lever 13, and vibration-sensing lever 15 are set in the same direction, the switch 16 is installed near the vibration-sensing lever 15, and the second lever 13b and the fuel By engaging the valve opening/closing lever 11 at the tip of the fuel valve opening/closing lever 11, the distance between the fuel valve opening/closing lever 11 and the vibration sensing lever 15 is narrowed.

FIG. 2 shows a second embodiment of the present invention, and shows a control device equipped with two electromagnetic pumps. Such a control device is necessary for a combustion system with two burners (for example, as shown in Japanese Patent Application No. 136065/1982). That is, one electromagnetic pump 25 is used as a means for supplying fuel to a burner for room heating, for example, and the other electromagnetic pump 25' is used as a means for supplying fuel to a burner for floor heating, for example. In this way, when two electromagnetic pumps 25, 25' are provided, no extra space is required compared to the conventional type shown in FIG. 5, and the pump can be made more compact. The structure other than the electromagnetic pump 25' is the first one.
It is exactly the same as the one in the picture.

(Effects of the invention) As explained above, the control device according to the invention has a fuel valve opening/closing lever, a first lever, a second lever,
By arranging the extension directions of the vibration sensing levers and making their rotation axes in the same direction, the mutual spacing between them is reduced, thereby reducing the installation space on the leveling device and making the whole system more compact. I can do it. As a result, the control device according to the present invention can be accommodated even in a small and limited space in the main body of the combustion device.

[Brief explanation of drawings]

FIG. 1 is a perspective view of one embodiment of the present invention, FIG. 2 is a perspective view of another embodiment of the present invention, and FIG. 3 is the relationship between the lever 13a, the vibration-sensing lever 15, and the switch 16 in FIG. 4 is a schematic sectional view of a liquid fuel combustion device to which the present invention is applied, and FIG. 5 is a perspective view of a conventional control device. In the figure, 11 is a fuel valve opening/closing lever, 12 is a support plate, 13 is a lever, 14 is a valve lever, 15 is a shock lever, 16 is a switch, 25 and 25' are an electromagnetic pump,
31 is a seismic weight.

Claims (1)

[Scope of utility model registration request] It includes an electromagnetic pump for supplying liquid fuel to the burner through an oil feed pipe, a vibration-sensing lever, and a switch provided near one end of the vibration-sensing lever to de-energize the electromagnetic pump in the event of an earthquake, etc. an anti-seismic fire extinguishing device, a fuel on-off valve biased in a direction to close an oil feed pipe that bypasses the electromagnetic pump, and a fuel valve on-off lever extending substantially parallel to the seismic lever for driving the fuel on-off valve. and a power outage fuel supply device capable of supplying liquid fuel to the burner in the event of a power outage, wherein the fuel valve opening/closing lever has a bifurcated valve on one end side. 1. A lever having a second lever is provided, and the first lever extends to the switch in the same direction as the extension direction of the vibration-sensing lever in order to cooperate with the vibration-sensing lever to open and close the switch. and the second lever is provided with a receiving part for hooking one end of the fuel valve opening/closing lever when the fuel valve opening/closing lever is operated, and the lever is biased in one direction and this bias is transferred to the first lever. A control device for a liquid fuel combustion device, characterized in that the vibration sensing lever, the fuel valve opening/closing lever, and the rotation axes of the lever are parallel to each other.