JPS5838246Y2 - Oil combustor fire power adjustment device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a fire power adjustment device for an oil combustor that allows fire power adjustment using a fire power adjustment tube.

Conventional oil combustors have been designed to adjust the amount of combustion in the burner using a power adjustment tube. A regulating tube is provided, and the combustion power is adjusted by opening and closing the air supply holes of the inner and outer flame tubes, respectively, to adjust the amount of combustion.

Hereinafter, a specific example thereof will be explained according to the drawings.

In FIG. 1, 1a is a burner placed on an outer core cylinder 1b and an inner core cylinder 1C, and 1d is a core.

Reference numerals 1 and 3.2 denote an outer cylinder, an outer flame cylinder, and an inner flame cylinder of the burner, which are fixed concentrically by cross pins (not shown).

Reference numerals 4 and 5 denote an inner power adjustment tube and an outer firepower adjustment tube, which are concentrically contacted and surrounded by the lower portions of the inner and outer flame tubes 2 and 3, respectively. Numerous air supply holes in the cylinder 6.
A large number of through holes 8 and 9 formed at the same pitch as 7 are provided.

The inner/outer input adjusting tubes 4, 5 are installed so as to be slidable relative to the inner/outer flame tubes 2, 3, respectively.
The upper ends of the tubes are located below the beads of the corresponding inner and outer flame tubes 2.3.

The inner and outer input adjusting cylinders 4 and 5 are penetrated by a single fixed shaft 10 that passes through the inner and outer flame cylinders 2 and 3, and are fixed concentrically.

In the portions of the inner and outer flame tubes 2 and 3 that pass through the fixed shaft 10, there are elongated holes 11, 11, 11.11 for guiding the fixed shaft 10 in the circumferential direction so that each flame tube 2 and 3 can rotate. is drilled.

Further, both ends of the fixed shaft 10 are located on the outer circumference of the external input adjustment cylinder 5 and on the inner circumference side of the outer cylinder 1, respectively.

12.12 is a pair of stopper angles obtained by bending both ends of the rotary plate 13 which is rotatably fitted onto the core top 14, and are provided so as to face each other through a hole in the rotary plate 13. .

A U-shaped fitting recess 16 is formed at the upper end of the stopper angle 12, and the fitting recesses 16 are opposed to each other.
The straight line connecting comrades is farmer 14. Each flame cylinder 2, 3. Adjustment tube 4,
It becomes equivalent to the diameter of 5.

The fixed shaft 10 is fitted and fixed in the fitting recess 16 of the stopper angle 12, but the width of the recess 16 is larger than that of the shaft 1.
Since the diameter of the recess 16 is slightly larger than that of the recess 16, the shaft 10 can be moved by the width of the recess 16.

Note that 17 is a ventilation hole around the agricultural university 14. Reference numeral 18 is an engagement piece fixed to the right side of the lower end of the outer cylinder 1, and has a U-shaped retaining part 19 with an open end.

This engagement piece 18 is a locking protrusion 2 fixed to the outer cylinder 1b.
0 and prevents rotation of the burner 1a.

Reference numeral 21 denotes a connecting plate having the rotary plate 13 fixed to its upper end, which is passed through the inside of the core inner cylinder 1C, and its lower end is rotatably supported by the bottom of the oil combustor main body (not shown).

One end of a fire power adjustment lever (not shown) protruding from the front panel is connected to this connecting plate 21, and can be rotated from the outside using this lever.

Next, the operation of the thermal power adjustment device having the above configuration will be briefly explained.

First, if the firepower is large, the firepower adjustment tube 4, as shown in Figure 1,
The through holes 8 and 9 of No. 5 correspond to the air supply holes 6 and 7 of the inner and outer flame tubes 2 and 3, and the air supply holes 6 and 7 of the inner and outer flame tubes 2 and 3 are in a fully open state.

To reduce the firepower from this state, rotate the firepower adjustment lever in one direction.

The rotation of the lever is transmitted to the connecting plate 21, and the stopper angle 12 is fixed to the connecting plate 21.
．． 12, the fixed shaft 10 also rotates in the direction of rotation of the lever.

Therefore, the inner/outer input adjusting cylinder 4 fixed to this fixed shaft 10
, 5 will also rotate in the same way as this fixed shaft 10.

On the other hand, since the burner 1a is fixed to the outer core cylinder 1b, even if there is a resistance between the firepower adjustment cylinder 4.5 and the inner and outer flame cylinders 2 and 3, the burner 1a will not move. Only the inner and outer input adjusting tubes 4 and 5 rotate, and the air supply holes 6 and 7 at the lower portions of the inner and outer flame tubes 2 and 3 are closed.

In addition, the fitting recess 16 of the stopper angle 12.12,
16 and the fixed shaft 10, the rotation angle of the fixed shaft 10 and the firepower adjustment cylinders 4 and 5 is smaller than the rotation angle of the lever.

In addition, when increasing the firepower, it is sufficient to move the lever in the opposite direction and return the firepower adjustment tubes 4 and 5 to their original positions.

The above-mentioned fire power adjustment device converts the fire power by controlling the supplied air, but the exposed length of the wick 1d remains constant, and it is necessary to maintain a balance between the air and fuel (oil gas) required for combustion. Great firepower.

The drawback is that it is difficult to always obtain good combustion conditions, regardless of the size.

The present invention was developed in view of this point, and allows the exposed length of the wick to be adjusted when adjusting the firepower.

Hereinafter, one embodiment of the present invention will be described in detail with reference to FIG. 2 and subsequent figures.

Note that the same parts as in FIG. 1 are denoted by the same reference numerals.

A few features of this embodiment will be listed below.

(1) When the firepower is reduced, the exposed length of the wick becomes shorter.

(2) When converting from low to high heat power, the exposed length of the wick becomes longer.

(3) In conjunction with adjusting the exposed length of the wick by rotating the adjustment knobs for up and down the wick, the amount of supplied air is adjusted to adjust the firepower.

In other words, the adjustment knob for the top and bottom of the wick doubles as the firepower adjustment knob.

(4) When the heating power is set to high, the heating power remains high even if the adjusting knob for raising and lowering the wick is rotated in the direction of lowering the wick.

Now, FIG. 2 is a perspective view showing the main parts of the present invention, and the burner 1a and the firepower adjustment mechanism are almost the same as in FIG. 1.

In the case of this embodiment, instead of the connecting plate 21° 21, a single-shaped connecting rod 23 is inserted into the center hole 26 of a conversion base 25 that hangs down from the agricultural university 14 and is fixed to the bottom of the combustion tank 24. .

As is clear from the bottom view of FIG. 3, this conversion base 25 is horizontally suspended over the cylindrical portion of the core inner cylinder 1C, and has a mounting piece 28 for a return lever spring 27 protrudingly formed on one side. .

Now, as shown in Fig. 2, the upper end of the connecting rod 23
The rotation plate 13 is inserted through the center hole of 4 and protrudes above the agricultural university, and the rotary plate 13 is fixed to this part together with the removal stopper 29.

As described above, the lower end of the connecting rod 23 is inserted through the center hole 26 and bent into a backward shape to become the locking portion 30, and the conversion base 25
It is inserted through an arc-shaped guide hole 31 bored in the.

Therefore, by moving the locking portion 30 of the connecting rod 23 within the movable range of the arc-shaped guide hole 31, the connecting rod 23 and the rotary plate 13 can be rotated left and right to adjust the firepower.

The feature of the present invention is that the connecting rod 23 is rotated in conjunction with the core adjustment knob 32, which will be described in detail later.

Reference numeral 33 is an adjustment shaft to which the core adjustment knob 32 is fixed at one end, and a pinion 34 for raising and lowering the core is provided at the other end.

This pinion 34 meshes with a rack provided on the outer periphery of the core holder that fixes the core 1d, and when the knob 32 is rotated to the right (in the direction of arrow A), the core 1d is raised, and when the knob 32 is rotated to the left, the core 1d is lowered. do.

Incidentally, such a core up-and-down mechanism is no different from the conventional one.

35 is a knob dial provided on the back side of the core adjustment knob 32, and 36 is a clutch mechanism that acts so that the raised core 1d is held in that position without falling down by itself, and this mechanism is also different from the previous one. There is no change.

Reference numeral 37 denotes a rotary lever fixed to the back surface of the knob dial 35, and a U-shaped angle 38 is fixed to one point on its outer periphery.

An operating pin 39 is slidably inserted into insertion holes bored in opposite positions of both side walls of the angle 38, and furthermore, this pin 39 is always urged toward the mouth by an operating pin spring 40. ing.

That is, the operating pin 39 does not come out of the U-shaped angle 38, and the spring 40 is interposed between the inside of the tip of the pin and the outer surface of the side wall of the angle 38.

A chassis 41 holds the combustion tank 24 at a predetermined height from the mounting base 42, and there is a certain amount of gap between the bottom of the combustion tank 24 and the mounting base 42.

43 is bent into steps as shown in FIG. 2 to form a combustion tank 24.
Its center is rotatably supported by a mounting piece 44 at the bottom of the
one end 46 of which is connected to the operating pin 39.
The other end is located at a position corresponding to the conversion base 25.
to the guide hole 31.

An elliptical loose insertion hole 47 is bored at the other end of the conversion lever 43, and the locking portion 30 of the connecting rod 26 is inserted through this hole 47 and the guide hole 31.

Further, since one end of the return spring 27 is attached to the conversion lever 43, the lever 43 is always biased in the direction of arrow C, that is, in the direction of decreasing firepower.

Also, the operating pin 39 rotates the knob 32 clockwise, and the core 1d
The rotary lever 37 is provided in such a way that it comes into contact with one end 46 of the conversion lever 43 when it reaches the combustible position (when it has rotated about 270 degrees), and the conversion lever 43 is rotated around the pivot 45. make a circular motion.

In addition, 48 is an outer cylinder pin protruding from the outer cylinder 1 in the horizontal direction;
49 is a burner fixing angle fixed to the core outer cylinder 1b in order to fix the outer cylinder pin 48.

Next, the operation of the above-mentioned thermal power adjustment device will be explained.

It is now assumed that the wick ld and the knob 32 are in the extinguishing position, and the fire power adjustment cylinders 4 and 5 are in the low fire power position.

To light the wick 1d, first turn the knob 32 to 3.
Rotate clockwise by 60 degrees to raise the lead 1d to the highest position.

In this process, until the knob 32 rotates 270 degrees, the operating pin 39 does not come into contact with the end 46 of the conversion lever 43, so the lever 43 is not displaced at all.

However, if the knob 32 rotates more than 270 degrees, the operating pin 3
9 comes into contact with the end 46 of the conversion lever 43, and the lever 4
3 is displaced in the direction of the arrow about the pivot point 45, so the other end of the lever 43 is displaced in two directions.

Due to this displacement, the locking portion 30 of the connecting rod 26 inserted into the loose insertion hole 47 is displaced in two directions along the arc-shaped guide hole 31, and the connecting rod 26 is rotated in two directions.

For this reason, the rotating plate 13. The firepower adjustment cylinders 4 and 5 rotate in two directions via the fixed shaft 10, and when the locking part 30 reaches the end 50 of the guide hole 31, that is, when the knob 32 is surrounded to the rightmost side, the firepower is at the highest position. becomes.

When the force to rotate the knob 32 is released, the knob 32 itself rotates slightly to the left due to the backlash of the clutch mechanism 36, but since the elastic force of the operating pin spring 40 is stronger than the elastic force of the return spring 27, The conversion lever 43 remains in the high heat position.

In addition, when turning the knob 32 clockwise to move the wick upward and at the same time increase the heat power, the operating pin 39 is moved to the lever 43.
When it comes into contact with the end 46 of the pin, there is a slight spacing, but since the actuating pin spring 40 is strong, there is virtually no problem.

In this manner, at the time of ignition, the fire power adjustment tube is in the position of the greatest fire power, and the wick 1d is also in the highest position, making it very easy to ignite.

Normally, the wick 1d is slightly lowered to achieve a stable hot smoking state after a while after ignition, but when the knob 32 is rotated to this extent, the elastic force of the operating spring 40 is strong as described above, so the firepower adjustment tube 4.5 is lowered. will not have any effect and will continue to maintain a high level of firepower.

In the large state according to the present invention, the amount of supplied air and the amount of oil gas from the wick 1d are balanced, and an extremely good combustion state can be obtained.

If you want to reduce the firepower from a state of stable combustion with high firepower, turn the knob 32 to the left, and turn the knob 32 to the end 4 of the conversion lever 43.
6. Decrease the pressing force toward the mouth.

Then, the return spring 27 acting on the lever 43
The elastic force of the lever 43 prevails, and the lever 43 moves in the direction along the guide hole 31.

As a result of this movement, the connecting rod 26 rotates in the opposite direction, and the rotating plate 13 also rotates in the same direction, so the fire power adjustment tubes 4 and 5 also rotate in the same direction, and the knob 32 facing the low fire power position is rotated by 270 degrees.
When it is reversed to a certain degree, it will be in a position with low firepower.

As the knob 32 is rotated counterclockwise, the wick 1d is lowered, so that not only the firepower adjustment tubes 4 and 5 are in the low heat position, but also the wick 1d is lowered.
The firepower has also been reduced to a low level.

Therefore, not only the amount of air supplied to the combustion section is reduced, but also the amount of air supplied to the combustion section is reduced.
Since the exposed length of d is shortened, the amount of oil evaporation is also reduced, and the above two conditions are maintained in a well-balanced state, resulting in a low combustion state.

To increase the firepower again, rotate the knob 32 clockwise, rotate the firepower adjustment cylinders 4 and 5 to the high firepower position in the opposite direction to the above, and at the same time increase the exposed length of the wick 1d.

In this way, according to the firepower adjustment device, the wick adjustment knob 32
By rotating the , the firepower can be adjusted, and a balanced combustion state can be maintained regardless of whether the firepower is large or small.

When the knob 32 is returned to about 270 degrees or less, the operating pin 39 and the end 46 of the conversion lever 43 are separated, so the conversion lever 43 is pulled in the direction of the arrow by the spring 27, and the firepower adjustment tubes 4 and 5 adjust the firepower. It remains in the small position and is not affected by the rotation of the knob 32.

Other Embodiments (1) A lever for adjusting the firepower may be provided separately from the wick adjustment knob 32, and the wick 1d may be moved up and down in conjunction with the rotation of the firepower adjustment cylinders 4 and 5 by this lever.

(2) The interlocking mechanism between the core adjustment knob 32 and the firepower adjustment cylinder is not limited to the above embodiment, and a cam or lever equalization means may be used.

Further, in the above embodiment, the interlocking mechanism is provided at the bottom of the combustion tank, but it may be provided at the top of the tank.

As described above, according to the present invention, the exposed length of the wick is increased or decreased in conjunction with the control of the firepower by the firepower adjustment tube, so regardless of whether the firepower is large or small, the fuel and air are balanced and combustion is always good. The state is obtained.

Moreover, since the balance between fuel and air can be easily maintained, the conversion range of thermal power can be widened.

Furthermore, it is possible to reduce standing flames when converting firepower.

Furthermore, even if the wick adjustment knob is slightly rattled and the wick adjustment knob is automatically slightly reversed, the firepower adjustment tube remains in the same position, so the firepower can be adjusted accurately.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the main parts of an example of a conventional fire power adjustment device, Fig. 2 is a sectional view showing the main parts of a kerosene stove implementing the device of the present invention, and Fig. 3 is a bottom view of the main parts of Fig. 2. It is a diagram. Code 1a: Burner, 1d: Core, 4, 5: Inner/outer input adjustment cylinder, 13: Rotating plate, 25: Conversion base, 26: Connecting rod, 30: Locking part, 31: Guide hole, 32: Core adjustment Knob,
27: Return spring, 37: Rotation lever, 39: Operating pin, 40: Operating pin spring, 43: Conversion lever 47: Loose insertion hole.

Claims (1)

[Scope of Claim for Utility Model Registration] A fire power adjustment tube is provided for opening and closing a large number of air supply holes at the bottom of either the inner flame tube and the outer flame tube of the burner, which are placed inside the wick or at the top of the outer tube, and The petroleum oil is characterized in that the adjustment cylinder and the burner are relatively movable to enable adjustment of the firepower, and a mechanism is provided in which the wick is displaced in relation to the relative movement of the firepower adjustment cylinder. In the combustor, a conversion lever is provided to relatively move the firepower adjustment cylinder and the burner, and a first spring is provided that constantly biases the conversion lever in the direction of the smaller firepower side, which is related to the rotation of the wick adjustment knob. An operating pin for adjusting the firepower is provided in association with the core adjustment knob, and the tip of the operating pin contacts one end of the conversion lever during the trajectory, and the operating pin is connected to the conversion lever. A second spring is provided on the side that is always pressed, and one end of the conversion lever is pressed and moved in the upward direction by the actuating pin that moves in conjunction with the rotation of the core adjustment knob in the direction of upward movement of the core, thereby adjusting the core. A firepower adjustment device for an oil combustor, wherein the position of the operating pin and conversion lever is not changed by the elastic force of the second spring even if the knob is slightly rotated in the direction of lowering the core.