JPH071085B2 - Oil combustor - Google Patents

Description

TECHNICAL FIELD The present invention relates to a wick type oil combustor using a cartridge tank.

2. Description of the Related Art A conventional petroleum combustor includes a refueling fire extinguisher for extinguishing a wick by rotating a lead up / down mechanism (not shown) when the cartridge tank 101 is removed as shown in FIG. Has a built-in refueling indicator that detects when the fuel has run out.

That is, when the cartridge tank 101 is removed in FIG. 5, the refueling fire extinguishing lever 102 rotates as shown by an arrow a, and the lock body operating protrusion 103 formed by cutting and raising a part of the refueling fire extinguishing lever 102 causes the vibration extinguishing device to operate. The lock release lever 105, which is also operated by the weight 104, is rotated as shown by the arrow b to release the lock of the lock body 106 that engages the lead up / down mechanism at the lead up position to lower the wick and extinguish the fire. When the cartridge tank 101 becomes empty, the refueling detection lever 107 lifts the cartridge tank 101, and the refueling display lever 108, which is spot welded so as to be integrated with the refueling detection lever 107, is moved up and down to display the refueling display. The structure is such that the user can know the empty amount of the cartridge tank from the front 110 by the change in the color of the body 109.

However, in the above-described conventional configuration, the cartridge tank 10
1 is a long-sized refueling fire extinguishing lever 102 and refueling sensing lever 10
The 7 levers are configured to directly detect the weight of the cartridge tank independently of each other. Therefore, in order to prevent malfunction, dimensional accuracy of parts and spring value accuracy of the biasing spring are required, and material cost is also reduced. It was expensive. Further, the refueling sensing lever 107 needs to be made of a thick material that does not deform due to the weight of the cartridge tank, while the refueling display lever 108 needs to be made of a thin material having a spring property and a high elastic limit. Therefore, the refueling sensing lever 107 and the refueling display lever 108 are fixed to each other by spot welding or the like, but there is a problem that productivity is deteriorated due to different kinds of materials and materials having different plate thicknesses.

The present invention has been made in view of the above points, and has an object to reduce cost and improve reliability.

Means for Solving the Problems In order to achieve the above-mentioned object, the present invention achieves the above object. A refueling sensing lever urged and installed so as to unlock the lock body by removing a cartridge tank, and the refueling sensing lever locks the lock body. And a refueling detection lever urging means for urging the refueling detection lever, and a refueling display lever and a lever urging means for urging these levers are provided coaxially with the refueling detection lever. Is set so as to exert a stronger biasing force than the load obtained by subtracting at least the initial spring force of the spring that biases the refueling valve of the cartridge tank in the closing direction from the empty weight of the cartridge tank,
The refueling display lever urging means is set so that the combined force with the refueling sensing lever urging means is stronger than the tank empty weight,
The refueling fire extinguishing lever that interlocks with the refueling sensing lever is configured to release the lock by the lock body at least after the refueling valve of the cartridge tank and the pin of the refueling port are separated from each other.

With the above-described structure, the present invention makes it possible to detect, with a single lever, a refueling notification display due to a change in the weight of the cartridge tank, and a refueling extinguishing function that works when the cartridge tank is being lifted during combustion. The operation can be performed and the material cost can be reduced.

An embodiment of the present invention will be described below with reference to the drawings. 1 is a core guide cylinder, 2 is a core outer cylinder which is arranged on the outer circumference of the core guide cylinder 1 with a gap, and 3 is a core outside the core guide cylinder 1. A wick provided vertically movable between the tube 2 and the tube 2.

Next, the core up / down mechanism 5 for vertically moving the wick 3 will be described. First, reference numeral 6 denotes a core upper and lower body (hereinafter referred to as a core vertical lever) for moving the wick 3 up and down, and one end of the wick is linked to the wick 3 through an appropriate linking means. The core up / down lever 6 is rotatably supported by a pin 8 (see FIG. 4) on a core up / down base plate 7 in the middle thereof. Reference numeral 9 denotes an ignition lever pivotally supported on the core upper / lower board 7 by a pin 8 together with the core upper / lower lever 6 and automatically returns to its original position after the ignition operation. Reference numeral 10 denotes a core upper / lower plate pivotally supported on the core upper / lower base plate 7 by pins 8 together with the core upper / lower lever 6 like the ignition lever 9, and is adapted to be linked to the core upper / lower lever 6 by an appropriate means. Reference numeral 11 denotes a spring for urging the core upper and lower plates 10 in the vertical direction (the wick lowering position), which is hooked between the end of the core upper and lower plates 10 and the core upper and lower substrates 7. Reference numeral 12 is a lock body for holding the core upper and lower plates 10 at a lower position (a wick rising position), and is rotatably supported by a pin 12a. The lock body 12 is formed with a long hole 14 through which a pin 13 implanted in the upper and lower plates 10 is inserted, and a locking portion 14a is formed at the terminal end of the long hole 14 to lock the pin 13. It is like this. That is, when the core up / down lever 6 is pushed down (in the direction of raising the wick), the core up / down plate 10, which is linked to the core up / down lever 6 by an appropriate means, rotates downward (the core up / down plate 10).
Pin 13 descends along the long hole 14 and reaches the end of the long hole 14), the pin 13 fits into the locking portion 14a and the core moves up and down at that position in spite of the biasing force of the spring 11. It will lock the board 10. Reference numeral 15 is a leaf spring attached to the lock body 12, and 16 is a vibration extinguishing weight linked to the leaf spring 15 through a chain 17, which is erected on a pedestal 18 provided on the core upper and lower substrates 7. .
The weight 16 swings in the event of an earthquake, and the leaf spring 15 moves through the chain 17.
That is, the lock body 12 is rotated. This makes the long hole 14
The pin 13 is disengaged from the locking portion 14a, and the urging force of the spring 11 causes the upper and lower core plates 10 to rotate upward. At this time, the core upper and lower plates 10 are linked to the core upper and lower levers 6, so that the core upper and lower levers 6 also rotate upward, and the wick 3 is lowered to extinguish the fire.

Reference numeral 23 is a refueling sensing lever, the tip of which is located in the vicinity of an installation portion of a cartridge tank 26 described later, and a refueling sensing lever shaft 23a pivotally supports the refueling display lever 21 and a refueling sensing spring 24 coaxially. And the other end of 23 on the refueling sensing lever
The reference numeral 23b is formed so as to face the bent piece 25a of the refueling fire extinguishing lever 25 pivotally supported on the base plate 7 by the refueling fire extinguishing lever shaft 25a. The refueling sensing lever 23 is urged by a refueling sensing spring 24 so as to always push the lock body 12 upward through the refueling extinguishing lever 25. Also, refueling display lever 21
Also, regarding the refueling sensing lever shaft 23a, the refueling spring 22
Is provided and biased in the same direction as the refueling sensing spring 24.

Denoted 26 is a detachable cartridge tank that is fixedly attached to a fuel filling port 28 of a fuel tank 27 that pushes up the refueling sensing lever 23, and a refueling valve 30 that is always biased in a closing direction by a spring 29.
Have. Reference numeral 31 is a pin provided upright on the fuel filling port 28 of the fuel tank 27, and when the cartridge tank 26 is inserted into the fuel filling port 28, it pushes open the fuel filling valve 30 against the biasing force of the spring 29.

Here, as shown in FIG. 2, when the fuel in the cartridge tank 26 becomes empty and the empty amount is detected by the refueling indicator 20, the combined force of the refueling sensing spring 24 and the refueling indicator spring 22 causes the emptying of the cartridge tank 26. When the weight becomes larger than the weight, the refueling detection lever 23 starts to move in the upward direction a around the refueling detection lever shaft 23a. For this reason, the refueling display lever 21 cannot press the right end portion 21a against the bottom surface of the refueling detection lever 23, and similarly, the refueling display lever 21 moves in the b direction about the refueling detection lever shaft 23a by its own weight and the force of the refueling display spring 22.
If you recolor the refueling indicator board 20 into two colors in advance,
Through the hole 19a provided in the front plate 19, it is possible to detect the refueling time as a color change. In this case, refueling indicator
20 stops at the point where it has moved to the protrusion 19b provided on the front plate 19, and no longer acts to lift the cartridge tank 26. That is, as the amount of oil in the cartridge tank 26 decreases, the refueling sensing lever 23 is lifted by the force of the biasing spring, the fuel replacement point with the fuel tank 27 of the cartridge tank 26 rises, and the amount of oil in the fuel tank 25 increases. It is possible to prevent an increase in the number of fuel cells, and it is possible to prevent the occurrence of an accident such as the fuel leading to a flame leaking from the oil pan even in an abnormal state such as overturning the device.

Therefore, the refueling sensing spring 24 of the refueling sensing lever 23 changes the empty weight of the cartridge tank 26 from the refueling valve of the cartridge tank 26.
It is set so as to exert a stronger biasing force than the load obtained by subtracting at least the initial spring force of the spring 29 for biasing 30.

On the other hand, the refueling fire extinguishing lever 23 is dimensioned so as to push up the lock body 12 via the refueling fire extinguishing lever 25 to release the lock after at least the state where the refueling valve 30 of the cartridge tank 26 and the pin 31 of the refueling port 28 are separated from each other. There is.

Therefore, when the cartridge tank 26 is removed for refueling, as shown in FIG. 3, the refueling sensing lever 23 is rotated in the upward c direction by the urging force of the refueling sensing spring 24 to push down the refueling fire extinguishing lever 25 and lock the lock body 12. Can be operated to reliably extinguish a fire.

EFFECTS OF THE INVENTION As described above, according to the present invention, since the two operations associated with the operation of the cartridge tank are performed through one lever, a highly reliable mechanism can be supplied at a relatively low cost with a small material cost. You can do it.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view showing an essential part of an oil combustor according to an embodiment of the present invention, and FIGS. 2 and 3 are explanatory views of the same operation.
FIG. 4 is a perspective view of the same division, and FIG. 5 is an explanatory view showing a conventional example. 3 ... wick, 5 ... core up / down mechanism, 11 ... spring means, 12 ...
… Lock body, 16 …… Fire extinguishing means, 20 …… Refueling indicator, 21…
… Lubrication indicator lever, 22 …… Lubrication indicator lever urging means, 23
…… Refueling detection lever, 24 …… Refueling detection lever urging means,
25 …… Refueling fire extinguishing lever, 26 …… Cartridge tank, 27
...... Fuel tank, 28 ...... Filling port, 29 ...... Heat spring for refueling valve, 30 ...... Refueling valve, 31 ...... Pin.

Claims (1)

[Claims] 1. A wick whose one end is immersed in the fuel in a fuel tank, a wick raising / lowering mechanism for moving the wick up and down, and spring means for urging the wick raised by the wick raising / lowering mechanism in a descending direction.
A lock body for holding the wick in a raised position against the spring force of the spring means, a fire extinguishing means for releasing the lock of the lock body to lower the wick, and a fuel filler port formed in a part of the fuel tank. And a cartridge tank having a pin provided at this oil supply port and an oil supply valve that is pressed and opened by the pin to removably engage this oil supply valve portion with the oil supply port, and the lock body is locked by removing the cartridge tank. A refueling sensing lever that is urged to release, a refueling sensing lever urging means that urges the refueling sensing lever in the unlocking direction of the lock body, and a refueling indicator lever that is axially supported coaxially with the refueling sensing lever. And a refueling display lever urging means for urging the refueling display lever in the same direction as the refueling detection lever urging means. In order to exert an urging force that is stronger than at least the load obtained by subtracting the initial spring force when the cartridge tank body is normally set to the spring that urges the refueling valve of the cartridge tank toward the closing direction and weaker than the own weight of the cartridge tank. The oil refueling indicator urging means is set so that the combined force with the refueling sensing lever urging means exerts at least a stronger urging force than the empty weight of the cartridge tank.