JP5417822B2 - Structure of fire extinguisher for oil combustor - Google Patents

Description

  The present invention relates to a structure of a fire extinguishing device for a core vertical oil combustor.

  In the dial-type core lifting device, when the core vertical shaft is rotated in the centering direction, the rotating plate is driven via the locking portion, the return spring is wound up by the rotating plate, and the rotating plate is a stopper at the centering position. The core vertical axis is provided so as to be able to rotate independently of the locking portion while maintaining the rotational force of the rotating plate, and it is normal to manually rotate the core vertical axis. The fire extinguishing operation and the amount of combustion can be adjusted.

In addition, when the seismic device provided in the combustor detects vibration due to an earthquake or a combustor falling, and the seismic weight falls down, the stopper moves through the fire extinguishing device starting member, and the stopper moves to the rotating plate. When the rotary plate is detached, the rotary plate rotates the core vertical axis in the direction of lowering the core by the force of the return spring, and the automatic fire extinguishing device is configured to lower the core to the fire extinguishing position (see Patent Document 1). ).
JP 2005-106332 A

The return spring that constitutes the automatic fire extinguishing device is arranged on the outer periphery of the core vertical axis, and both ends are fixed to the base and the rotating plate base, so that the core vertical axis is reliably driven to the fire extinguishing position. It is attached in a state where it has been wound up by a predetermined amount at the position where the vertical axis is lowered.
And the structure of the conventional automatic fire extinguishing device is that the return spring and the rotation plate are attached to the core vertical axis, and then the rotation plate with which the end of the return spring is engaged is rotated by a predetermined angle with one hand. While holding the rotating plate with the return spring wound up by a predetermined amount, it is necessary to perform the attaching work of the locking part to the rotating plate and the core vertical axis, and it is very difficult to assemble the automatic fire extinguishing device was there.

  In addition, the conventional fire extinguishing device has a structure in which the fire extinguishing device cannot be operated unless the rotating plate and the return spring are attached to the combustor body. If a device malfunctions and parts need to be replaced, the fire extinguisher must be removed from the combustor, disassembled, reassembled, and then checked again, which is very time consuming. Yes, quality control was difficult and increased costs.

SUMMARY OF THE INVENTION The present invention solves the above-described problem, and includes a core vertical shaft 1 that performs a core vertical operation, a rotating plate 3 that includes a return spring 2 that rotates about the core vertical shaft 1, and a core during a core lifting operation. A locking portion 4 for transmitting the rotation operation of the vertical shaft 1 to the rotation plate 3, a stopper 5 that engages the rotation plate 3 against the accumulated force of the return spring 2 at the center-up position, and rotation of the stopper 5 A seismic device 6 that disengages from the plate 3 is provided. The seismic device 6 is operated by a predetermined vibration, and the rotating plate 3 that is disengaged from the stopper 5 is returned by the return spring 2 to the core vertical axis 1. In the fire extinguisher of the oil combustor that rotates in the core lowering direction, the base 7 of the fire extinguisher is provided with a through hole 7a through which the core vertical shaft 1 passes, and a bearing holder 8 is provided in the through hole 7a of the base 7. mounting a cylindrical portion 8a the bearing holder 8 to surround the outer periphery of the core vertical shaft 1 fitted into the through hole 7a, the base Constituted by a flange 8c having an engaging portion 8b is engaged, a cylindrical body 3a of the core vertical shaft 1 penetrates the said rotating plate 3, to the stopper 5 and the engagement with the core down position projecting forming a strip 3b, to the cylindrical body 3a is fitted on the outer periphery of the cylindrical portion 8a, the rotating plate 3 rotatably to the bearing holder 8 mounted Rutotomoni, the said flange 8c pivoted the cylindrical portion 8a and the return mounting the spring 2 on the outer periphery of the cylindrical body 3a, the return respectively engaging the end portion 2a on the rotating plate 3 and the flange 8c in a state where the spring 2 is not wound up between the plate 3 The rotating plate 3 is attached to a position where the protruding piece 3b is engaged with the stopper 5. When the bearing holder 8 is rotated , the rotating plate 3 is prevented from rotating by the stopper 5, the return bus only bearing holder 8 is rotated by a predetermined angle 2 a predetermined amount hoisting, characterized in that to hold the state in which winding up the spring 2 back said engaged to said base 7 by the engagement portion 8b.

Further, the rotary plate base 9 provided at a said base 7 by a predetermined distance, the said rotating plate base 9 provided with an opening 9a of the rotary plate 3 is fitted, the cylinder in the rotating plate 3 the outer cylinder 3 c is provided on the outer surface of the body 3a, the rotary plate 3 together with the cylindrical body 3a is fitted to the outer peripheral portion of the cylindrical portion 8a of the bearing holder 8, the outer cylindrical body 3 c is the times Since it is fitted to the inner edge of the opening 9a of the moving plate base 9 so as to be rotatable, after the return spring 2 is wound up, the rotating plate 3 attaches the cylindrical portion 8a of the bearing holder 8 before attaching the core vertical shaft 1. Can pivot to the center.

Further, the forming the outer tube portion 8d outside the cylindrical portion 8a of the bearing holder 8 together with the tubular portion 8a is fitted into the inner periphery of the cylindrical body 3a of the rotating plate 3, said outer cylindrical portion 8d fitted to the inner edge of the through-hole 7a of the base 7, the return spring 2 because mounted between the outer cylindrical portion 8d and the tubular portion 8a, the bearing holder 8 permeability of the outer cylindrical portion 8d a base 7 The return spring 2 can be wound up by rotating while fitted to the inner edge of the hole 7a, and the bearing holder 8 is easy to rotate and the return spring 2 is difficult to come off.

The fire extinguishing apparatus according to the present invention has a bearing holder 8 attached to the through hole 7a of the base 7, and the bearing holder 8 includes a cylindrical portion 8a through which the core vertical axis 1 is inserted. A cylindrical body 3 a is formed on the plate 3, and the cylindrical body 3 a of the rotating plate 3 is fitted to the outer periphery of the cylindrical portion 8 a of the bearing holder 8 so that the rotating plate 3 is rotatably fitted to the bearing holder 8. The return spring 2 is arranged on the outer periphery of the cylindrical portion 8 a of the bearing holder 8 and the cylindrical body 3 a of the rotating plate 3. Then, the end 2a is engaged with the flange 8c of the bearing holder 8 and the rotating plate 3 while the return spring 2 is not rolled up, and then the bearing holder 8 is rotated by a predetermined angle to wind up the return spring 2 by a predetermined amount. By engaging the engaging portion 8b of the bearing holder 8 with the base 7, the return spring 2 can be held in a wound state, so that the return spring 2 can be easily wound up.
When the fire extinguisher is assembled to the oil combustor, it is no longer necessary to perform the assembly work while supporting the return spring 2 by hand as in the prior art, and the fire extinguishing apparatus can be easily assembled.

  Further, the rotating plate 3 is formed with a protruding piece 3b that engages with the stopper 5 at the center lowered position, and the return spring 2 is moved to the rotating plate 3 at a position where the protruding piece 3b of the rotating plate 3 engages with the stopper 5. And the bearing holder 8 is rotated to wind up the return spring 2. When the return spring 2 is wound up, the protruding piece 3 b of the rotating plate 3 is locked to the stopper 5 and the rotating plate 3 is Since the rotation is prevented, only the bearing holder 8 can be rotated, and the return spring 2 can be easily wound up. Further, the state where the return spring 2 is wound up can be maintained without supporting the rotating plate 3 and the bearing holder 8 by hand, and the rotating plate 3 can be rotated around the cylindrical portion 8 a of the bearing holder 8. Since it was able to be attached, the fire extinguisher can be configured in an operable state in advance, and the assembly work to the combustor becomes easy and workability can be improved.

In addition, a rotating plate base 9 is disposed at a predetermined distance from the base 7 of the fire extinguishing apparatus, an opening 9a is formed in the rotating plate base 9, and an outer cylinder is formed outside the cylinder 3a in the rotating plate 3. 3c is formed, and the rotating plate 3 is configured such that the cylindrical body 3a is fitted to the outer peripheral portion of the bearing holder 8 and the outer cylindrical body 3c is fitted to the opening 9a of the rotating plate base 9. Even if the rotating plate 3 is rotated around the cylindrical portion 8a of the bearing holder 8 when the return spring 2 is wound up and only the fire extinguisher before the core vertical shaft 1 is attached, the rotating plate 3 does not come off. It became something that could be held securely.
For this reason, the fire extinguishing device can be engaged with the stopper 5 by rotating the rotating plate 3 to the center-up position before being attached to the oil combustor. When the stopper 5 is unlocked, the force of the return spring 2 is used. Since the rotating plate 3 can be rotated to the center-down position and the operation of the fire extinguishing device can be confirmed, it is easy to adjust the fire extinguishing device, and the combustor is confirmed to operate in advance. Because the fire extinguisher that performed is attached, quality control becomes easy, productivity is improved, and cost can be reduced.

  Further, the bearing holder 8 forms an outer cylinder part 8d outside the cylinder part 8a, and the outer cylinder part 8d is fitted into the through hole 7a of the base 7, and the return spring 2 includes the outer cylinder part 8d and the cylinder part 8a. It is arranged between. When the return spring 2 is wound up, the bearing holder 8 can be rotated while the cylindrical portion 8 a and the outer cylindrical portion 8 d of the bearing holder 8 are fitted in the cylindrical body 3 a of the rotating plate 3 and the through hole 7 a of the base 7. it can. For this reason, when the bearing holder 8 is rotated, the return spring 2 positioned inside the outer cylindrical portion 8d is not caught in the through hole 7a or easily detached, and the bearing holder 8 is not transparent to the outer cylindrical portion 8d. Since the hole 7a serves as a rotation guide, it is easy to rotate, and the return spring 2 can be easily wound up.

  The present invention will be described with reference to an embodiment of a dial type oil combustor shown in the figure. Reference numeral 10 denotes an oil tank of the oil combustor, 11 a core accommodating cylinder standing from the oil tank 10, and 12 an upper and lower parts in the core accommodating cylinder 11. A movably attached core 1 is a core vertical axis for performing the core vertical operation, and the core 12 moves up and down in the core housing cylinder 11 by rotating the core vertical axis 1. 1 a is a locking piece provided on the core vertical shaft 1, 3 is a rotary plate composed of a gear that is loosely fitted to the core vertical shaft 1 and rotates around the core vertical shaft 1, and 3 d is provided on the rotary plate 3 The locking projection 4 is a locking portion constituted by a locking piece 1a and a locking projection 3d. When the core vertical shaft 1 is rotated in the center raising direction, the locking piece 1a is engaged with the rotating plate 3. Since the stop protrusion 3d is pushed, the core vertical shaft 1 and the rotating plate 3 rotate together.

  7 is a base of a fire extinguisher, 7a is a through-hole through which the core vertical shaft 1 formed in the base 7 is inserted, 2 is a return mounted on the outer periphery of the core vertical shaft 1 and mounted between the base 7 and the rotating plate 3 A spring, 3e are locking teeth provided on the rotating plate 3, 5 is a stopper that locks to the locking teeth 3e of the rotating plate when rotating in the centering direction, and the rotating plate 3 is a centering operation. Sometimes the return spring 2 is wound up, and when the locking teeth 3e of the rotating plate 3 are engaged with the stopper 5, the rotating plate 3 holds the rotational force in the core lowering direction by the return spring 2.

  6 is a vibration-sensing device that moves the stopper 5 locked to the rotating plate 3, 6a is a vibration-sensing weight mounted on the base 7, and 6b is a vibration-sensing lever that connects the stopper 5 and the vibration-sensing weight 6a. Reference numeral 6c denotes a support shaft of the vibration sensing lever 6b. When the vibration sensing weight 6a detects vibration and falls, the vibration sensing lever 6b moves about the support shaft 6c, and the stopper 5 engages with the locking teeth 3e of the rotating plate 3. Deviate from. Then, the rotating plate 3 from which the stopper 5 is removed is rotated in the core lowering direction by the return spring 2, and the locking protrusion 3 d of the rotating plate 3 presses the locking piece 1 a of the core vertical shaft 1. 1 is driven in the core lowering direction together with the rotating plate 3 and rotated to the fire extinguishing position to extinguish the fire.

  Further, the core vertical shaft 1 is provided so that the locking piece 1a can be rotated independently from the locking projection 3d while the rotating plate 3 and the stopper 5 are engaged, and the core vertical shaft is manually operated. By rotating 1, a normal fire extinguishing operation and adjustment of the combustion amount can be performed.

  By the way, the conventional general fire extinguishing apparatus has a return spring at the core lowering position of the core vertical shaft 1 in order for the rotating plate 3 to reliably rotate the core vertical shaft 1 to the core lowering position by the force of the return spring 2. 2 is held in a state where it has been wound up by a predetermined amount, and a force is exerted on the rotating plate 3 to rotate in the core lowering direction from the fire extinguishing position. Reference numeral 3b denotes a protruding piece provided on the rotating plate 3. When the stopper 5 is removed from the locking tooth 3e of the rotating plate 3 at the center raising position, the rotating plate 3 is rotated in the core lowering direction by the return spring 2. In the fire extinguishing position, the protruding piece 3b of the rotating plate 3 is engaged with the stopper 5 to stop the rotation, and the rotation is stopped while leaving the rotational force in the core lowering direction by the return spring 2. The core up-and-down shaft 1 and the rotation plate 3 can be reliably rotated to the core lowering position.

Conventionally, the base 7, the return spring 2, and the rotary plate 3 are inserted through the core vertical shaft 1 attached to the oil tank 10 and the end of the return spring 2 is attached to the base 7 and the rotary plate 3. The rotating plate 3 is rotated to wind up the return spring 2 by a predetermined amount, and while holding the rotating plate 3 and the return spring 2 by hand so that the wound return spring 2 does not return, the locking piece 1a is attached to the core vertical shaft 1. Because it was attached, it was very difficult to work.

  Further, when the locking piece 1a is attached to the core vertical shaft 1, the locking protrusion 3d of the rotating plate 3 hits the locking piece 1a of the core vertical shaft 1 and the rotation of the rotating plate 3 is prevented, and returns at the fire extinguishing position. Although the spring 2 can be held in a wound state, the amount of the return spring 2 wound up may vary depending on the operator, and the operation of the fire extinguishing device is likely to vary.

  Conventionally, the operation of the fire extinguishing device can be confirmed only after the base 7, the return spring 2 and the rotating plate 3 are attached to the combustor body, and problems such as malfunction of the fire extinguishing device are found. However, if it is necessary to replace parts, the fire extinguisher must be removed from the combustor body and reassembled, and after the fire extinguisher is attached to the combustor body. It was necessary to check the operation again, which was very time-consuming.

  The present invention solves the above-mentioned problems. Reference numeral 8 denotes a bearing holder that fits into the through hole 7a of the base 7, 8a denotes a cylindrical part through which the core vertical shaft 1 constituting the bearing holder 8 is inserted, and 8c denotes a cylindrical part. A flange formed outward from the peripheral edge of 8a, 8b is a substantially L-shaped engagement portion formed on the flange 8c, and 7b is an attachment hole formed in the base 7 with which the engagement portion 8b of the bearing holder 8 is engaged. Yes, the bearing holder 8 is attached to the base 7 by fitting the cylindrical portion 8 a into the through hole 7 a of the base 7 and engaging the engaging portion 8 b with the mounting hole 7 b of the base 7.

  3a is a cylinder in which the core vertical shaft 1 formed at the central portion of the rotating plate 3 is fitted, 3f is a stepped portion formed on the inner side of the cylindrical body 3a of the rotating plate 3, and an inner diameter on the front end side is increased, and 8e is It is a step portion formed on the outer side of the cylindrical portion 8a of the bearing holder 8 to reduce the outer diameter on the distal end side. The outer diameter dimension on the distal end side of the step portion 8e of the cylindrical portion 8a of the bearing holder 8 and the rotation plate 3 The inner diameter dimension on the tip side of the step 3f of the cylindrical body 3a matches, the cylindrical portion 8a of the bearing holder 8 and the cylindrical body 3a of the rotating plate 3 are fitted, and the distal end of the cylindrical portion 8a is the rotating plate 3 The tip of the cylindrical body 3a of the rotating plate 3 is in contact with the step 8e of the bearing holder 8, and the rotating plate 3 is rotatably attached to the bearing holder 8.

  2a is an end portion of the return spring 2 formed in an L shape, 8f is a locking hole for locking one end portion 2a of the return spring 2 formed in the flange 8c of the bearing holder 8, and 3g is a rotating plate. 3 is an engaging hole that is engaged with the other end 2a of the return spring 2 formed on the outer periphery of the return spring 2. The return spring 2 surrounds the outer periphery of the cylindrical portion 8a of the bearing holder 8 and the cylindrical body 3a of the rotating plate 3. The end 2a engages with a locking hole 8f formed in the flange 8c of the bearing holder 8 and a locking hole 3g formed in the rotating plate 3, respectively.

When assembling the fire extinguishing apparatus, the cylindrical portion 8a of the bearing holder 8 is fitted into the through hole 7a of the base 7, and the engaging portion 8b of the bearing holder 8 is engaged with the mounting hole 7b of the base 7 so that the bearing holder 8 is fitted. Attached to the base 7, the return spring 2 is attached to the cylindrical portion 8 a of the bearing holder 8, and the cylindrical body 3 a of the rotating plate 3 is fitted into the cylindrical portion 8 a of the bearing holder 8. The return spring 2 is mounted between the bearing holder 8 and the rotating plate 3 so as to surround the cylindrical portion 8a and the cylindrical body 3a, and the end portion 2a is locked to the bearing holder 8 while the return spring 2 is not rolled up. The holes 8f and the locking holes 3g of the rotating plate 3 are attached.
Then, the bearing holder 8 is pulled from this state to remove the engaging portion 8b from the mounting hole 7b of the base 7, and when the bearing holder 8 is rotated by a predetermined angle in the core lowering direction, the return spring 2 can be wound up and engaged again. When the portion 8b is engaged with the mounting hole 7b, the return spring 2 can be held in a wound state.

Although the rotation angle of the bearing holder 8 is arbitrary, it can be set to the same rotation angle depending on the positional relationship between the engaging portion 8 b of the bearing holder 8 and the mounting hole 7 b of the base 7.
In the embodiment, when the bearing holder 8 is rotated once, the engaging portion 8b can be engaged with the mounting hole 7b of the base 7. When the return spring 2 is wound up, the bearing holder 8 is always rotated once. . If the rotation angle of the bearing holder 8 is the same, the amount of winding of the return spring 2 will be the same, so there will be no variation in the amount of winding of the return spring 2 for each product, and stable operation of the fire extinguishing device can be expected.

Further, the rotating plate 3 can be rotated around the cylindrical portion 8 a of the bearing holder 8. In the present invention, however, the return spring 2 is located at a position where the protruding piece 3 b of the rotating plate 3 is engaged with the stopper 5. Is engaged with the rotary plate 3 and the bearing holder 8, and the bearing holder 8 is rotated from this position to wind up the return spring 2. For this reason, when the bearing holder 8 is rotated, the rotation plate 3 is prevented from rotating by the stopper 5, and only the bearing holder 8 can be rotated without the rotation plate 3 rotating in the core lowering direction. The winding work can be easily performed, and when the bearing holder 8 is engaged with the base 7, the rotating plate 3 returns without rotating even if the rotating plate 3 and the bearing holder 8 are not pressed by hand. The state in which the spring 2 is wound up can be held.
Thus, since the fire extinguisher can be configured integrally by attaching the rotating plate 3 and the bearing holder 8 in a state where the return spring 2 is wound up in advance on the base 7, when the fire extinguisher is attached to the combustor body, The cylindrical portion 8a of the bearing holder 8 attached to the base 7 and the cylindrical body 3a of the rotating plate 3 are inserted into the core vertical shaft 1 to fix the base 7 of the fire extinguishing device to the oil tank 10, and then the core vertical shaft 1 is engaged. It is only necessary to attach the stop piece 1a, and it is not necessary to hold the return spring 2 and the rotating plate 3 by hand when attaching the locking piece 1a. Therefore, assembly work can be easily performed, and productivity can be improved.

  In FIG. 1, 9 is a rotating plate base formed continuously from the end of the upper surface plate of the base 7, 9 a is an opening formed in the rotating plate base 9, and the rotating plate base 9 is predetermined from the base 7. The opening 9 a of the rotating plate base 9 is provided at a position facing the through hole 7 a of the base 7. 3c is an outer cylinder formed on the outer side of the cylinder 3a of the rotating plate 3. The outer diameter of the outer cylinder 3c of the rotating plate 3 matches the inner diameter of the opening 9a of the rotating plate base 9. The rotating plate 3 has a cylindrical body 3 a fitted into the cylindrical portion 8 a of the bearing holder 8 and an outer cylindrical body 3 c fitted into the opening 9 a of the rotating plate base 9.

In the fire extinguisher of the present invention, the rotating plate 3 can be rotated around the cylindrical portion 8a of the bearing holder 8 even without the core vertical shaft 1 before the base 7 is attached to the combustor body. When the outer cylindrical body 3c of the plate 3 is fitted into the opening 9a of the rotating plate base 9, it serves as a guide when the rotating plate 3 rotates, and the rotating plate 3 can smoothly rotate. In this configuration, when only the fire extinguishing device is attached before the core vertical shaft 1 is attached, the rotating plate 3 is rotated in the direction of raising the core and locked with the stopper 5, and the stopper 5 is further removed and rotated by the force of the return spring 2. Even if the moving plate 3 is rotated to the core lowered position, the rotating plate 3 and the return spring 2 are not detached.
For this reason, the operation of the fire extinguishing device can be confirmed before being attached to the combustor body, and adjustment work such as component replacement can be easily performed even if a failure is found by the operation confirmation. In addition, because the combustor main unit is installed with a normal operation that has been confirmed in advance, there will be almost no problems after the installation of the fire extinguishing device, and the confirmation work on the assembly line can be simplified and quality control can be performed. Is easy and production efficiency is improved, leading to a reduction in production costs.

8d is an outer cylinder part formed outside the cylinder part 8a of the bearing holder 8. The outer cylinder part 8d is provided so that the outer dimension of the outer cylinder part 8d is the same as the inner diameter dimension of the through hole 7a of the base 7. 8, the outer cylindrical portion 8 d is fitted into the inner edge of the through hole 7 a of the base 7, and the engaging portion 8 b is engaged with the mounting hole 7 b of the base 7 and attached to the base 7.
Further, the length dimension of the outer cylindrical portion 8d of the bearing holder 8 is longer than the length dimension of the engaging portion 8b, and the engaging portion 8b is pulled by pulling the bearing holder 8 in order to wind the return spring 2. When removed from the mounting hole 7b of the base 7, the bearing holder 8 can be rotated while the outer cylindrical portion 8d is fitted in the through hole 7a of the base 7, and the outer cylindrical portion 8d is guided when rotating. Accordingly, the bearing holder 8 does not come off from the base 7 during rotation, and the return spring 2 can be wound up by smoothly rotating.

Further, a locking hole 8f for engaging the end of the return spring 2 is provided between the cylindrical portion 8a and the outer cylindrical portion 8d of the bearing holder 8, and the return spring 2 is provided between the cylindrical portion 8a and the outer cylindrical portion 8d. Wearing between. As described above, since the return spring 2 is mounted on the inner side of the outer cylinder portion 8d, the return spring 2 may come off due to being caught by the inner edge of the through hole 7a of the base 7 while the return spring 2 is being wound. Thus, the return spring 2 can be smoothly wound up.

It is principal part sectional drawing of the fire extinguishing apparatus which shows the Example of this invention. It is principal part sectional drawing which shows the state at the time of the attachment to the combustor of the fire extinguisher which shows the Example of this invention. It is a front view which shows the fire extinguishing apparatus which shows the Example of this invention. It is principal part sectional drawing of the fire extinguishing apparatus which shows the Example of this invention. It is an exploded view of the fire extinguishing apparatus which shows the Example of this invention. It is sectional drawing which shows the time of winding up of the return spring of the fire extinguishing apparatus which shows the Example of this invention. It is principal part sectional drawing of the fire extinguishing apparatus which shows the Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Core vertical axis | shaft 2 Return spring 2a End part 3 Rotating plate 3a Cylinder 3b Projection piece 3c Outer cylinder 4 Locking part 5 Stopper 6 Vibration sensor 7 Base 7a Through-hole 8 Bearing holder 8a Cylinder part 8b Engagement part 8c Flange 8d Outer tube 9 Rotating plate base 9a Opening

Claims (3)

A core vertical axis (1) for performing the core vertical operation, a rotating plate (3) having a return spring (2) that rotates about the core vertical axis (1), and a core vertical axis (1) during the centering operation ) And a stopper (5) that engages the rotating plate (3) against the accumulated force of the return spring (2) at the center raising position. ), And a seismic device (6) for disengaging the stopper (5) and the rotating plate (3),
The seismic device (6) is operated with a predetermined vibration, and the rotating plate (3) disengaged from the stopper (5) is rotated by the return spring (2) to rotate the core vertical axis (1) in the core lowering direction. In the fire extinguishing device of the oil combustor,
The base (7) of the fire extinguishing device is provided with a through hole (7a) through which the core vertical shaft (1) passes,
A bearing holder (8) is attached to the through hole (7a) of the base (7),
Engaging portions the bearing holder (8) engages the tubular portion surrounding the outer periphery and (8a), and said base (7) of the through hole the core vertical axis fitted in (7a) (1) (8b And a flange (8c) provided with
Said rotating plate (3) in the cylindrical body the core vertical shaft (1) penetrates the (3a), to form and said at core down position stopper (5) and protruding pieces for locking (3b),
Fitted to the outer periphery of the cylindrical body (3a) the cylindrical portion (8a), said rotating plate (3) pivotally mounted Rutotomoni to the bearing holder (8),
Periphery the return mounting a spring (2) to the flange the cylindrical portion between the (8c) and said rotary plate (3) the cylindrical body and (8a) (3a),
The return spring (2) are each engaged end portion (2a) to said flange (8c) and said rotary plate (3) with no hoist,
The rotating plate (3) is attached to a position where the protruding piece (3b) engages with the stopper (5),
When the bearing holder (8) is rotated , the rotation plate (3) is prevented from rotating by the stopper (5), and only the bearing holder (8) is rotated by a predetermined angle to rotate the return spring (2). predetermined amount hoisting, the structure of the fire extinguishing system for oil burner, characterized in that to hold the state in which winding up a spring (2) back said engaged to said base (7) by said engagement portion (8b). Said base (7) and provided with a rotary plate base (9) at predetermined intervals, said the rotary plate base (9) provided with an opening (9a) of the rotary plate (3) is fitted, the the rotary plate (3) outer tubular body (3c) provided on the outside of the cylindrical body (3a), said rotating plate (3) is cylindrical portion of the cylindrical body (3a) the bearing holder (8) with fitted to the outer peripheral portion of (8a), and wherein the attaching rotatably the outer tubular member (3 c) is fitted to the inner edge in the opening (9a) of the rotary plate base (9) The structure of the fire extinguishing device for an oil combustor according to claim 1 . Outside to form the outer cylinder portion (8d), the cylindrical body of the bearing holder (8) the cylindrical portion (8a) is the rotary plate (3) of the cylindrical portion of the bearing holder (8) (8a) ( with fitted to the inner periphery of 3a), said outer cylindrical portion (8 d) is fitted to the inner edge of the through-hole (7a) of said base (7), the return spring (2) is the cylindrical portion (8a ) and the structure of the fire extinguishing apparatus for oil burner according to claim 2, characterized in that mounted between the outer cylinder part (8 d).

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