JPH0335939Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a wick-up and down-type oil combustor that burns oil by inserting the upper part of the wick into the combustion tube.

(b) Conventional technology In general, this type of wick type oil combustor is used in an incomplete combustion state where a large amount of carbon monoxide is generated if the wick is lowered too much when adjusting the combustion condition. I will do it. Therefore, in order to prevent the wick from being used by lowering the wick too low, manual operation of the rotary knob lowers the wick to about 1/2 from the maximum protruding height.
Japanese Patent Publication No. 56-36325 discloses a device configured to be able to descend only up to a height of 3.

By the way, in the above-mentioned conventional structure, the lowering of the wick by rotating the knob is restricted to a certain range that does not cause incomplete combustion. This is done by operating the lock release means to disengage the locking body from the gear, and then the wick is suddenly lowered to the extinguishing position by the accumulated force of the wick lowering spring. Therefore, the above-mentioned conventional structure has the disadvantage that when tar or the like adheres to the tip of the wick, the wick cannot be lowered by the accumulated force of the wick lowering spring. Moreover, if the wick gets stuck in a position where it cannot be extinguished and does not come down, even if the user intends to extinguish it by operating the lock release means, the combustion will continue, resulting in a very dangerous situation.

In addition, as disclosed in Japanese Utility Model Publication No. 59-32816, new members such as pins and springs are added to the wick up-and-down mechanism, so that when the wick is lowered beyond the proper combustion range, the pin A device has been proposed that prevents the wick from lowering too much by climbing over the spring, but this not only requires a large number of parts and is difficult to assemble, but also allows the pin to easily climb over the spring. Once the wick was lowered, the wick lowering operation became easier again, so there were times when I did not notice that I had lowered the wick too much.

(c) Purpose of the invention This invention was made in view of the above points, and aims to prevent the wick from being lowered too much during combustion, improve safety when extinguishing fires, and simplify operations during extinguishing. and aims to ensure that

(d) Structure of the invention The present invention consists of a lamp wick, a wick vertical axis that moves the lamp wick up and down, a gear rotatably provided on the wick vertical axis, and a storage device that uses the rotation of this gear in one direction. The force is applied to the spring member, a fixed body fixed to the core vertical shaft and having a threaded portion, an actuating body screwed to the fixed body, and the gear, and the core vertical shaft is rotated by engagement with the gear. a locking member that prevents rotation of the gear in the wick lowering direction; and a fire extinguisher that releases the engagement between the locking member and the gear and lowers the wick using the stored force of the spring member, The gear and the operating body are provided with concave and convex portions that can fit into each other, and when lowering the wick within a predetermined combustion range, one of the convex portions is movable within the other concave portion, and when the wick exceeds the predetermined combustion range, During the core lowering operation, the fixed body is screwed and rotated while the operating body is locked to the gear.

(E) Embodiment An embodiment of the present invention will be described below in detail based on the drawings.

Reference numeral 1 denotes an operation knob detachably attached to the front end of the core vertical shaft 2, and by manually rotating the knob 1 clockwise, it engages with a pinion 3 provided at the rear end of the core vertical shaft 2. Rack 4 and core support fitting 5
The lamp wick 6 is moved up and down through the . Therefore, the lamp wick 6 moves up and down between the wick frame 7 and the empty cylinder 8, and the inner cylinder 11 of the combustion cylinder 10 placed on the fire pan 9.
and the middle cylinder 12. Reference numeral 13 denotes a gear rotatably provided on the outer periphery of the core vertical shaft 2, and the gear 13 is caulked and fixed to the outer end of a hollow cylindrical protection pipe 14 which is rotatably fitted onto the core vertical shaft 2. There is. A support pipe 15 is fixed to the tank 26 on the outer periphery of the protection pipe 14, and a coil spring (spring member) 17 for lowering the wick is fixed to the pipe 14 at one end and to the cap 16 of the support pipe 15 at the other end. It is wrapped inside.

Reference numeral 18 denotes a cylindrical fixed body located between the operating knob 1 and the gear 13 and fixed to the core vertical shaft 2 with a screw 19, and a male thread 20 is integrally attached to the rear part with a small diameter on the gear 13 side. It is formed. Reference numeral 21 denotes a disk-shaped actuating body, which is formed with a threaded part 22 that threads into the male threaded part 20, and is movable back and forth. When rotated clockwise, it moves backward.

A pair of pins (protrusions) 23 are located symmetrically to each other as locking protrusions from the inner surface of the actuating body 21 to the rear,
23 are fitted into arc-shaped engagement holes (recesses) 24, 24 formed concentrically on the gear 13, respectively, so that the rotation of the core vertical shaft 2 in the core upward direction (clockwise direction) is transmitted to the gear 13. It is composed of

Although not shown, 25 is a locking plate (locking member) associated with the oscillating weight of the vibration sensing device, which elastically engages with the gear 13 to rotate the gear 13 in the opposite direction (counterclockwise). This makes it possible to store the core downward biasing force of the coil spring 17 as the core moves up and down.

Next, the operation of the present invention will be explained above.

(When igniting) When the operating knob 1 is rotated clockwise by hand, the pinion 3 rotates as the wick vertical shaft 2 rotates, and the wick 6 protrudes to the maximum via the rack 4 and the wick support fitting 5. It can be raised to a height position t ₁ (the collar 27 comes into contact with a stopper not shown). This rotation of the core vertical shaft 2 causes the male threaded portion 2 of the fixed body 18 to
0, the gear 13 also rotates clockwise together with the operating body 21. The rotation of the gear 13 also causes the protection pipe 14 to rotate, and a biasing force in the direction of lowering the coil spring 17 is stored. This accumulated force is maintained by the locking plate 25 of the vibration sensing device locking onto the gear 13 and preventing its reversal. At this time, the wick 6
The upper end position is at the maximum protrusion height position _t1 , and the pair of pins 23, 23 of the actuating body 21 are at the positions shown by solid lines in FIG.

(When adjusting the combustion state to a low calorific value) First, turn the operating knob 1 counterclockwise.
The locking plate 2 resists the biasing force of the coil spring 17.
5 locks the gear 13, the fixed body 18 rotates counterclockwise together with the core vertical shaft 2. At this time, the pins 23, 23 of the actuating body 21 move to the positions shown by two-dot chain lines in FIG.
abuts against the end of the That is, the pins 23, 23 will move from one end of the engagement holes 24, 24 to the other end, and this shift will be the adjustment range of the combustion state, and the position shown in FIG. This is from _t1 to _t2 . This position _t2 is a weak combustion state due to a low calorific value, and the insertion hole 2 of the pins 23, 23 is
4 and 24, the load on the knob 1 is relatively light.

(When extinguishing a fire) First, when the locking plate 25 is released from the gear 13 by operating a fire extinguishing operation body (extinguishing means) not shown, the gear 13 is moved counterclockwise by the biasing force of the coil spring 17. This rotation causes the core vertical shaft 2 to rotate counterclockwise via the operating body 21 and the fixed body 18. At this time, the front end position of the lamp wick 6 is t ₀
The person will quickly descend to the extinguishing position and extinguish the fire.

Also, when vibrations such as an earthquake are applied to the above-mentioned upper and lower core type oil combustor, the vibration sensing device (another fire extinguishing means) is activated and the gear 1 of the locking plate 25 is activated.
3 is released, the coil spring 17 suddenly descends due to the biasing force of the coil spring 17 as described above, and extinguishes the fire.

Further, when the operating knob 1 is further rotated counterclockwise from when the upper end of the lamp wick 6 is at position _t2 , the pins 23, 23 of the actuating body 21 remain stopped at the position indicated by the two-dot chain line in FIG. Then, the lamp wick 6 is lowered to the extinguishing position t ₀ by the screwing rotation of the male threaded portion 20 of the fixed body 18 and the threaded portion 22 of the operating body 21 . At this time, the aforementioned pins 23, 23 are connected to the locking hole 24,
This is a larger load than the load applied to the operation knob 1 when shifting between the two positions.

Therefore, when adjusting the calorific value of the height position of the upper end of the lamp wick 6 between _t1 and _t2 , the load applied to the operating knob 1 is reduced, and when extinguishing the fire, the fixed body 18 is
Although the load is somewhat large due to the screwing rotation of the actuating body 21 and the actuating body 21, the two operations are capable of extinguishing fire.

(f) Effects of the invention As described above, the present invention is equipped with a rotation adjustment mechanism that makes the rotation of the wick vertical shaft in the wick downward direction light in the proper combustion range, and heavy when the proper combustion range is exceeded. When lowering the wick to adjust combustion, only a light operating force is required within the proper combustion range, but if you try to lower the wick further than that, a heavy operating force is required, so there is a difference in the operating force required to rotate the control knob. You can clearly tell if the wick is lowered too much,
In addition to preventing incomplete combustion due to lowering the wick too much, normal extinguishing can also be done by rotating the wick's up and down axis, so even if tar etc. are attached to the top of the wick and it is difficult to lower it, strong operating force is required on the operating knob. By adding it, you can easily lower the wick and extinguish the fire easily and reliably. In addition, by using the uneven parts provided on the gear and the operating body to associate the two, and by threading and rotating the fixed body, weight is given to core lowering operations that exceed the proper combustion range. Not only does the structure become simpler as there is no need for special parts like in the past, but the operating force required to lower the wick differs between the proper combustion range and other ranges, making it easy to determine which range the operation is for. It has a discernible effect.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a main part of the combustor of the present invention, and FIG. 2 is a front view of a gear taken along the line A-A' in FIG. 1... Operation knob, 2... Core vertical shaft, 6... Light wick, 13... Gear, 17... Coil spring (spring member), 18... Fixed body, 20... Male threaded part, 21... Operating body , 22... threaded portion, 23...
Pin (protrusion), 24... Insertion hole (recess), 25...
Locking plate (locking member).

Claims (1)

[Scope of utility model registration request] A lamp wick, a wick vertical axis that moves the lamp wick up and down,
A gear rotatably provided on the vertical shaft of the core, a spring member that stores force by rotation of the gear in one direction, and a fixed body fixed to the vertical shaft of the core and having a threaded portion. an actuating body screwed onto the fixed body; a locking member that prevents rotation of the gear in the core downward direction of the core vertical axis through engagement with the gear; and the locking member and the gear. and a fire extinguishing means for releasing the engagement of the spring member and lowering the wick using the stored force of the spring member, and the gear and the actuating body are provided with concave and convex portions that can be fitted into each other, and the wick is lowered in a predetermined combustion range. When lowering the wick of a lamp, one of the protrusions is movable within the recess of the other, and when lowering the wick of a wick exceeding a predetermined combustion range, the fixed body is screwed and rotated with the operating body locked to the gear. This is an over-core type oil combustor.