JPS5920927B2 - liquid fuel combustor - Google Patents

Description

[Detailed description of the invention] The present invention relates to liquid fuel combustors.

In liquid fuel combustors, which are opened and closed by a connecting plate on the top of the wick in conjunction with the vertical movement of the wick, various proposals have been made regarding the connecting plate device. There were disadvantages such as the mechanism or operation was such that it was easy to damage the lamp wick, and the operation was unstable.

For example, as shown in Japanese Utility Model Publication No. 48-37307, a movable ring that engages and disengages from the wick holder via a plate spring is disposed above a wick holder having a wick, and a fixed ring is disposed above this movable ring. The bottles at both ends of the annular movable gasket made of elastic material such as rubber or synthetic resin are inserted into the long holes formed in the movable ring and the fixed ring, and the wick holder is rotated and raised to raise the wick, and the wick holder is removed. The movable ring is rotated through the engagement between the leaf spring and the movable ring, and the pins at both ends of the movable gasket are actuated to open it. In this state, the leaf spring comes off from the movable ring and only the lamp wick rises. When extinguishing a fire, when the wick is lowered, a leaf spring engages with a movable ring to rotate the movable ring and close the movable gasket above the wick.

However, although the wick holder and movable ring work together during the initial movement, the wick and movable gasket part operate separately midway through, which tends to result in inconsistent operation.

Furthermore, the movable gasket as described above has many practical problems in terms of sealing performance and durability as a connecting body.

The present invention was made in view of the above-mentioned circumstances, and it fully utilizes the characteristics of a liquid fuel combustor that opens and closes by means of a connecting plate on the top of the wick in conjunction with the vertical movement of the wick. This eliminates the drawbacks of the previous one.

An embodiment of the present invention will be described below with reference to the drawings.

Reference numeral 1 designates a fixed tank, and a core guide tube 2 is welded and erected on the inner circumferential side of the fixed tank 1, and a leak valve is located on the outer circumferential side of the core guide tube 2 at the upper part of the outer circumferential side of the fixed tank 1. The lower part of the burner basket 4 is fixed via the oil-preventing banking 3, the lower part of the guide plate 5 is fixed to the inner circumferential side of the middle part of the burner basket 4, and a rising wall 6 is provided above the inner circumferential side of the guide plate 5. An annular lamp wick T is interposed in the gap formed between the rising wall 6 and the wick guide tube 2.

A stepped core top 8 is attached to the upper end of the core guide tube 2,
A suitable number of horizontal elongated holes 9 are bored along the side wall around the center top 80.

Further, a fire pan 10 is attached to the upper end of the burner basket 4, and a dual-tube type combustion tube 11 is removably mounted on the upper part between the fire pan 10 and the wick 8, and is positioned above the lamp wick 7. let

A guide plate 12 is attached to the upper side of the inner circumferential side of the burner basket 4, located on the outer circumferential side of the rising wall 6 of the guide plate 5, and a guide plate 13 is also attached to the lower inner circumferential side of the burner basket 4. For installation, guide elongated holes 14.15 are bored in correspondence with the upper and lower guide plates 12.13.

A substantially annular connecting plate 16 is disposed between the upper and lower guide plates 12 and 13 on the outer peripheral side of the rising wall 6 so as to be movable in the horizontal direction.

This continuous plate 16 has a slow-closing piece 25 for the upper surface of the lamp wick 7 formed on the inner peripheral side of the upper end, and has an L-shaped cross section.
, and is integrally formed from a single plate.

The continuous plate 16 has a finely movable end 17 at one end and a drive end 18 at the other end.
An auxiliary shielding plate 19 having one end fixed to the end of the connecting plate 16
The other end corresponds to the drive shaft 20 along this drive end 18.
to fix.

The upper protruding portion of the drive shaft 20 is loosely fitted into the guide elongated hole 14 in the upper guide plate 12, and the lower portion of the drive shaft 20 is loosely fitted into the guide elongate hole 15 in the lower guide plate 13, and , the guide slot 1 of the guide plates 12 and 13
4.15, the guide plate 50 is fitted into the guide slot 28 and extends downward.

Note that a guide elongated hole 1 is located between the lower guide plate 13 and the guide plate 5 on one side of the outer circumferential side of the rising wall 6.
A closing plate 26 is provided around the periphery to prevent the flow of gas through 5.28, and a long hole 27 is bored in this closing plate 26.
The drive shaft 20 is also inserted into the drive shaft.

On the other hand, a driven shaft 21 is attached to the fine movable end 17, and the vertically protruding portion of the driven shaft 21 is connected to the upper and lower guide plates 12.
It loosely fits into the small elongated holes 22 and 23 drilled corresponding to 13.

Further, a bent edge 24 is provided at the lower part of the fire pan 10, located inside the upper end of the burner basket 4, and between the bent edge 24 and the upper end of the rising wall 6, the connecting plate 1 is provided.
A gap is formed in which the late closing piece 25 at 6 can move in and out.

A drive disk 29 is located below the guide plate 5 and is provided around the outer circumferential side of the lamp wick 7 so as to be rotatable in the horizontal direction with respect to the guide plate 5. The lower part of the drive shaft 20 is inserted into the hole 30.

The driving elongated hole 30 of the driving disk 29 includes a 1JfL portion a and an elongated hole portion.

Further, the lamp wick 7 is located below the drive disk 29.
A wick holder 31 for holding the lamp wick 1 is provided around the outer periphery of the lamp holder 31 so as to be vertically movable and horizontally rotatable, and the lamp wick 7 is supported by the downward extending portion of the inner periphery of the wick holder 31. The slide pin 33 fixed to the driving disk 29 is vertically movably inserted into the slide pin insertion hole 32 formed in the upper edge of the core holder 31, thereby connecting the driving disk 29 and the core holder 31. Further, a rank 36 having a horizontal portion 34 and an inclined portion 35 is fixed to the outer side of the core holder 31.

Reference numeral 37 denotes an operating shaft, in which a gear portion 38 provided at the inner end of the operating shaft 37 is engaged with the rack 36, and a curved piece portion of the rack 36 is attached to the operating shaft 37 while pivotally supporting the operating shaft 37. 39, a roller 40, an oil leakage prevention ring 41, a restraining washer 42, and a retaining spring 43
, and bolts 44 are sequentially inserted to hold the operating shaft 31 within the pipe 45 fixed to the fixed tank 1 via the rollers 40 and bolts 44.

A ratchet plate 46 is rotatably fitted to the operating shaft 37, and a leaf spring 48 and a cover 49 are fitted to the stepped portion 47 of the operating shaft 370 in opposition to the ratchet plate 46. An operating shaft 37 is located on the outside of the ratchet plate safety protection fitting 50 fixed to the fixed tank 1.
The 0 stepped portion 47 is made to protrude.

A return spring 51 is wound around the stepped portion 47 of the protruding operating shaft 370, an operating dial 52 is fitted to the protruding end of the stepped portion 47, and a retainer 53 is attached to the inside of the operating dial 52. Against the above return spring 51
This return spring 51
The other end is locked to the ratchet plate safety protection fitting 50.

An appropriate number of tapered protrusions 54 are formed on the ratchet plate 46, and an appropriate number of square holes 55 are formed in the leaf spring 48 opposite to the protrusions 54. The impeller 56, which acts as a spring, is cut and raised,
When attaching the impeller 56, the leaf spring 48 is attached to the ratchet plate 46 while the cover 49 is pressed against the impeller 56.
And for installation, attach the cover 49.

Further, a vibration sensing device 58 is provided on one side of the fixed tank 1 via a base 51.

This vibration sensing device 58 operates on the locking piece shaft 6 in response to the movement of the pendulum 59.
The locking piece 61 is provided with a locking piece 61 that rotates about 0 as an axis, and this locking piece 61 meshes with the engaging teeth of the ratchet plate 46.
Further, a fire extinguishing lever 62 is provided in the interlocking process between the pendulum 59 and the locking piece 61.

In such a configuration, when the operating shaft 31 is rotated clockwise through the operating dial 52 during combustion use, the leaf spring 48 also rotates clockwise together with the operating shaft 37.
8, the ratchet plate 46 also rotates clockwise while resisting the spring pressure from the spring (not shown) of the locking piece 61 in the vibration sensing device 58, and is prevented from reversing by the locking piece 61, and gradually returns. The spring 51 is made to store force.

Further, the gear part 38 rotates clockwise together with the operation shaft 37, and the core holder 31 is rotated clockwise through the horizontal part 34 of the rack 36 with which this gear part 38 engages, and the drive disk 29 is rotated through the slide pin 33. Rotate to the right.

As the drive disk 29 rotates clockwise, the drive shaft 20 is pushed by the small hole a in the drive elongated hole 30 of the drive disk 29, and the drive shaft 20 moves through each guide elongated hole 1 of the guide plate 12°13.5.
4, 15.28, thereby moving the continuous plate 16
The driven shaft 21 of the finely movable end 17 is expanded horizontally.
is moved in the centrifugal direction along the small elongated holes 22, 23, and begins to open a passage for the wick 1 to move up and down.

Then, when the gear part 38 of the operating shaft 37 is located halfway up the inclined part 35 of the rack 36, the connecting plate 16 finishes opening completely, and the lamp wick 7, which had already started to rise at this stage, moves to the inclined part 35 of the rack 36. At the same time, the drive shaft 20 is raised to the fixed position by the meshing of the gear part 38 with the remaining part of the drive disk 29, and the drive shaft 20 is guided by the guide slots 14 and 15. Then, the drive disk 29 rotates idly.

If combustion is used in this state, and some kind of vibration is received during combustion that exceeds the indicated value, the pendulum 59 in the vibration sensing device 58 will swing, and the locking piece 61 will move against the locking piece shaft 60.
It rotates clockwise about the fulcrum, and at the same time releases the lock from the ratchet plate 46, the biasing force stored in the return spring 51 gives the operating shaft 37 a counterclockwise rotation.

This counterclockwise rotation of the operating shaft 37 causes an operation in the reverse order of the operation during the above-mentioned combustion use, and the driving disk 2
The rotation transmitted to the drive shaft 20 idles in the long hole part of the drive long hole 30 and lowers the lamp wick 7, while moving the drive shaft 20 in the centripetal direction at the 1JfL section a in the drive long hole 30, and lowers the lamp wick 7. After this, the connecting plate 16 closes the passage of the lamp wick 7.

In addition, when extinguishing a fire manually, by rotating the operation dial 50 to the left, the extinguishing action is performed in the same order as when the above-mentioned vibration sensing device 58 is activated. By pushing down the extinguishing lever 62 against the spring pressure of the spring, the locking piece 61
The locking piece 61 may be unlocked from the ratchet plate 36 by rotating the locking piece 61 clockwise about the locking piece shaft 60.

When adjusting combustion or extinguishing fire by manually rotating the operating dial 52 to the left, the square hole 55 of the leaf spring 48, which is attached to the operating shaft 37, is connected to the ratchet plate 4.
The operation shaft 37 rotates to the left in a state in which the ratchet plate 46 is locked by climbing over the tapered protrusion 54 at 6 by the action of the spring.

Further, when the operation dial 52 is rotated clockwise during combustion use, the rotation of the operation shaft 37 is controlled by the spring pressure of the leaf spring 48 and the suppression by the square hole 55 against the end surface of the protrusion 54 of the ratchet plate 46. , and the leaf spring 48 acts to prevent counterclockwise rotation in a state where the spring pressure is increased by the crest of the protrusion 54 of the ratchet plate 46.

Further, a blocking plate 26 is located between the guide plate 5 and the guide plate 13, and blocks communication between the upper and lower parts of the burner basket 4 through the elongated holes 28 and 15. This prevents the vaporized gas inside from leaking.

According to the present invention, the driving disc rotates integrally and simultaneously with the vertical movement of the wick holder that moves the lamp wick up and down, and the rotation of the driving disc engages the small hole of the driving elongated hole. The connecting plate moves horizontally via the driven shaft, and the connecting piece at the upper end can open and close the top surface of the lamp wick.
Since the connecting plate has a rectangular cross-sectional shape and is constructed of a single plate, dimensional control can be performed accurately, and one drive end can be secured between the drive shaft, the drive slot, and the guide slot of the guide plate. It operates to open and close by engaging the drive shaft at one end, and the slightly movable end at the other end is driven by the engagement between the driven shaft and the small elongated hole in the guide plate, so it is easy to open and close by operating the drive shaft at one end. This can be done reliably, and the vertical movement of the wick is reliably linked to the opening and closing of the connecting plate, and especially when the wick is lowered, the connecting plate is reliably linked to close when the wick is lowered. As a result, the wick is less likely to be damaged by the operation of the connecting plate, and stable operation can be achieved.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Figure 1 is a partially cutaway front view of a liquid fuel combustor, Figure 2 is a plan view of Figure 1, and Figure 3 is a diagram showing a liquid fuel combustor during combustion. Figure 2A- is a partially cutaway sectional view taken from the view, Figure 4 is a partially cutaway sectional view taken from Figure 3B-B' during combustion, and Figure 5 is a partially cutaway sectional view taken from the view taken from Figure 3B-B' during combustion. Figure 3 is a partially cutaway sectional view taken along line B-B', Figure 6 is a partially exploded perspective view of the connecting plate in Figure 3 when it is in an open state, and Figure 7 is the operating section in Figure 3. FIG. 7...Lamp wick, 5.12.13...Guidance board, 14゜1
5.28... Guide slot, 22.23... Small slot, 1
6... Continuation plate, 17... Fine movable end, 18... Drive end, 20... Drive shaft, 21... Driven shaft, 25...
Connecting piece part, 29... Drive disk, 30... Drive long hole, a... Small hole part, b... Hole part, 31... Core holder.

Claims (1)

[Scope of Claims] 1. In a liquid fuel combustor that is provided with a connecting plate that opens and closes the top surface of the wick in conjunction with the vertical movement of the wick, the wick is provided to hold the wick and to be freely movable vertically and horizontally. a holder; a drive disk provided on the outer circumferential side of the lamp wick and formed with a long drive hole that is rotated by the vertical movement of the wick holder and has a small hole portion and a long hole portion; and an upper position of the drive disk; Upper and lower guide plates are arranged in the upper and lower guide plates and have guide slots and small slots, and the upper and lower guide plates are horizontally movable between the upper and lower guide plates and have a finely movable end at one end and a drive end at the other end. A connecting plate is formed on the inner peripheral side of the upper end to connect to the upper surface of the lamp wick, the connecting plate has an L-shape in cross section, and is formed of a single plate, and is attached to the driving end of the connecting plate. is engaged with the drive elongated hole of the drive disk and the guide elongate hole of the guide plate, and moves along the guide elongate hole of the guide plate by the rotation of the drive disk, and the L elongated hole portion of the drive elongate hole a drive shaft that engages and disengages from the long hole and moves the connecting plate in the horizontal direction while being engaged with the small hole of the driving long hole; and a drive shaft that is attached to the slightly movable end of the connecting plate and moves the guide plate A liquid fuel combustor comprising: a driven shaft engaged with a small elongated hole;