JP3661051B2 - Combustor seismic drive structure - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a structure for reliably driving a seismic device attached to a combustor.
[0002]
[Prior art]
The combustor seismic device extends the operating shaft downward from the seismic weight mounted on the base, and when the seismic weight falls, the push-up plate provided at the lower end of the operating shaft moves upward and the seismic lever engages The automatic fire extinguishing device is activated by moving out of the section to extinguish the combustor.
[0003]
By the way, the operating shaft of the seismic weight may be in contact with the inner edge of the small hole of the base, and when the seismic weight falls to the opposite side of the contact surface, the operating shaft is caught by the inner edge of the small hole and falls down immediately. Because the seismic weight falls down while sliding sideways, it cannot resist falling due to frictional resistance at the base.
[0004]
In addition, when the seismic weight falls to the opposite side of the shaft side of the seismic lever, the push-up plate attached to the operating shaft falls toward the shaft side of the seismic lever, and the shaft from the push-up plate that drives the seismic lever Because the distance is short, a large force is required to drive the seismic lever.
[0005]
For this reason, if the operating weight and the inner edge of the small hole are in contact on the support shaft side when the seismic weight falls to the opposite side of the support shaft side of the seismic lever, the force to drive the seismic lever is insufficient, There was a risk that the automatic fire extinguisher could not be activated.
[0006]
[Problems to be solved by the invention]
Conventionally, as a countermeasure, the method of increasing the weight of the seismic weight and increasing the force at the time of falling has been implemented, but the base on which the seismic weight is placed is likely to wear due to the increase in weight. Since the seismic weight is difficult to fall down, there is a problem in using it for a long time, and a treatment that makes it difficult to wear by special surface treatment or the like is required.
[0007]
[Means for Solving the Problems]
The present invention solves the above-mentioned problems, and includes a seismic weight 2 mounted on the base 1, and an operating shaft 3 extending downward from the seismic weight 2 through the small hole 1a of the base 1. A push-up plate 4 attached to the lower portion of the operating shaft 3, a seismic lever 5 that rotates about a support shaft 5a provided on the base 1 disposed above the push-up plate 4, and an engaging portion at the set position. spring means 6a is provided with automatic fire extinguishing device 6 that match the engagement seismic lever 5 drives the seismic lever 5 which rotates around the support shaft 5a in the direction and automatic fire extinguishing device 6 direction of the push-up plate 4 7 is provided, actuating shaft 3 which is inclined at a fall of the seismic weight 2 rotates seismic lever 5 via the push-up plate 4, sensitive seismic lever 5 automatic fire extinguisher remove the engaging portion 6a 6 a seismic apparatus combustor operating, said seismic lever 5 extinguishing position of the automatic fire extinguishing system 6 than the set position to be engaged with the engaging portion 6a It has become possible number pivoting, the seismic lever 5 which seismic lever 5 in this extinguishing position push-up plate 4 is erected pressing Gaité seismic weights 2 and returned to the set position of the automatic fire extinguisher 6 And the push-up plate 4 attached to the operating shaft 3 are opposed to each other through a gap , the push-up plate 4 is formed in a disc shape, and the seismic lever 5 has a smaller diameter than the disc-like push-up plate 4. forming a circular hole 5b is passed through the working shaft 3, the seismic lever 5 around the circular hole 5b formed an abutment 8 which contacts the push-up plate 4, the seismic lever 5 is automatic fire extinguisher 6 When the push-up plate 4 is pushed down toward the fire extinguishing position , the abutment 8 raises the seismic weight 2 while driving the operating shaft 3 or the push-up plate 4 to the side, and the seismic lever 5 returns to the set position. the erecting during seismic weight 2 that, a gap between the inner edge of the support shaft 5a side of the small hole 1a of the base 1 and the actuating shaft 3 It is shall that form.
[0008]
Further, the push-up plate 4 is formed in a disc shape and is provided with a taper 4a that increases the outer diameter obliquely downward in the periphery, and the seismic lever 5 is formed with a circular hole 5b having a smaller diameter than the disc-like push-up plate 4. The contact portion 8 is provided on the inner edge of the circular hole 5b. The contact portion 8 presses down the push-up plate 4 over the entire inner edge of the circular hole 5b while contacting the taper 4a of the push-up plate 4. Since it is located in the center of the small hole 1a, the seismic weight 2 can be surely easily fall down.
[0009]
Further, the seismic lever 5 at the set position of the automatic fire extinguishing device 6 is provided higher on the support shaft 5a side than the operating shaft 3, and a large gap is formed between the seismic lever 5 and the push-up plate 4 on the support shaft 5a side. The seismic weight 2 greatly fell to the opposite side of the support lever 5a side of the seismic lever 5 so that the seismic lever 5 could be driven with great force.
[0010]
[Action]
In the present invention, in the fire extinguisher of the automatic fire extinguishing device 6 in which the seismic weight 2 falls, the seismic lever 5 is driven in the direction of the push-up plate 4 by the spring means 7, and the push-up plate 4 is pushed down to bring the seismic weight 2 upright. Let At this time, the contact portion 8 of the seismic lever 5 drives the operation shaft 3 or the push-up plate 4 from the support shaft 5a side to the side, so that the operation shaft 3 is located on the support shaft 5a side of the small hole 1a of the base 1. I can no longer touch the inner edge.
[0011]
The push-up plate 4 has a disc shape and has a taper 4a around it. The push-up plate 4 is pushed down over the entire inner edge of the circular hole 5b of the seismic lever 5 while the contact portion 8 is in contact with the taper 4a. Therefore, the operating shaft 3 can be positioned at the center of the small hole 1a of the base 1, and the operating shaft 3 and the inner edge of the small hole 1a of the base 1 are not in contact at all.
[0012]
Further, since the gap between the seismic lever 5 and the push-up plate 4 on the support shaft 5a side is formed wide, when the seismic weight 2 falls to the opposite side of the support lever 5a side of the seismic lever 5, the seismic weight 2 is The shock-absorbing lever 4 hits the seismic lever 5 after being greatly tilted and increased in momentum, and the seismic lever 5 was reliably driven to disengage from the engaging portion 6a.
[0013]
【Example】
The present invention will be explained with reference to the embodiments shown in the drawings. Reference numeral 1 denotes a base of a seismic device, 2 denotes a seismic weight mounted on the base 1, and 1a denotes a base 1 on which a seismic weight 2 is mounted. The provided small hole 3, an operating shaft extending through the small hole 1a from the seismic weight 2 and extending downward, 4 is a push-up plate attached to the lower portion of the operating shaft 3, and the seismic weight 2 with a predetermined vibration value. Is tilted, the operating shaft 3 is inclined, and the push-up plate 4 is moved up to the opposite side of the seismic weight 2.
[0014]
5 is a seismic lever that engages the operating shaft 3 above the push-up plate 4, 5a is a support shaft of the seismic lever 5 provided on the base 1, and the seismic lever 5 is raised when the seismic weight 2 falls. It is pushed up by the moving push-up plate 4 and rotates around the support shaft 5a.
[0015]
6 is an automatic fire extinguishing device for the combustor, and 6a is an engaging portion that engages with the seismic lever 5 at the set position of the automatic fire extinguishing device 6. The automatic fire extinguishing device 6 operates to extinguish the combustor.
[0016]
Also, the combustor shown in the figure is a core upper and lower oil combustor, wherein 9 is an oil tank, 10 is a core holding cylinder erected from the oil tank 9, and 11 is a combustion cylinder placed on the core holding cylinder 10. The core is mounted in the core holding cylinder 10 so as to be movable up and down.
[0017]
Reference numeral 12 denotes a core vertical axis inserted from the base 1 into the oil tank 9, 13 an operation lever that rotates around the core vertical axis 12, 14 a rotary plate loosely fitted to the core vertical axis 12, and 14 a a rotary plate 14. The operating lever 13 and the rotating plate 14 are brought into contact with each other by the engaging plate 14a and are rotated together.
[0018]
14a is a locking piece provided on the rotating plate 14, 5c is a stopper of the seismic lever 5 engaged with the locking piece 14b, and the locking piece 14b and the stopper 5c form the engaging portion 6a. .
[0019]
Reference numeral 15 denotes a return spring that drives the rotating plate 14 in the direction of lowering the core. Reference numeral 7 denotes spring means that drives the seismic lever 5 in the direction of the automatic fire extinguishing device 6. When the operating lever 13 is driven in the direction of raising the core, the rotating plate 14 returns. When the stopper 5c, which is rotated by extending the spring 15 and is pushed by the spring means 7 and comes into contact with the rotating plate 14, engages with the locking piece 14b, the return spring 15 is accumulated and the automatic fire extinguishing device 6 is set to the set position. Become.
[0020]
Further, when the stopper 5c comes into contact with the rotating plate 14 in the fire extinguisher of the automatic fire extinguishing device 6, the seismic lever 5 can be rotated larger than the set position, and the seismic lever 5 pushes the push-up plate 4. The seismic weight 2 can be lowered and lowered. When the operation lever 13 is operated from this state to move to the set position of the automatic fire extinguishing device 6 when the combustor is used, the operation lever 13 that has pushed down the push-up plate 4 is lifted and the seismic lever 5 and the push-up plate are moved. A gap can be formed between the two.
[0021]
On the other hand, when the seismic weight 2 falls down, the push-up plate 4 rotates the seismic lever 5 that has been opposed through the gap so that the engagement between the stopper 5b and the locking piece 14b is released, and the rotary plate 14 returns to the return spring. It rotates in the direction of core lowering with a force of 15. At this time, since the rotating plate 14 and the operating lever 13 are in contact with the engaging plate 14a, the operating lever 13 is driven to the fire extinguishing position, the combustor is extinguished, and the seismic lever 5 pushes the push-up plate 4 down to feel it. The seismic weight 2 can be erect.
[0022]
When the seismic weight 2 falls to the opposite side of the support shaft 5a side of the seismic lever 5, the push-up plate 4 moves upward on the support shaft 5a side. At this time, the distance from the push-up plate 4 to the support shaft 5a is considerably shorter than when the seismic weight 2 falls to the support shaft 5a side and the push-up plate 4 moves up on the opposite side. Thus, a large force is required to remove the stopper 5c from the locking piece 14b, and the seismic lever 5 was difficult to drive when the seismic weight 2 fell to the opposite side of the support shaft 5a.
[0023]
Further, since the seismic weight 2 falls down, the small hole 1a of the base 1 is provided larger than the diameter of the operating shaft 3, so that the operating shaft 3 is in contact with the inner edge of the small hole 1a of the base 1. There is. At this time, if the seismic weight 2 is about to fall to the opposite side of the contact surface between the operating shaft 3 and the inner edge of the small hole 1a due to earthquake vibration or instrument inclination, the operating shaft 3 is caught on the inner edge of the small hole 1a. The seismic weight 2 does not fall immediately, and falls when the operating shaft 3 moves away from the inner edge of the small hole 1a by sliding sideways on the base 1. For this reason, since the resistance is caused by the friction generated between the seismic weight 2 and the base 1, the seismic weight 2 is not easily toppled, and the magnitude of the vibration when the automatic fire extinguishing device 6 is activated, the combustor The angle when tilted greatly fluctuated.
[0024]
As a countermeasure against this, there is one in which the weight of the seismic weight 2 is increased so that a sufficient force for driving the seismic lever 5 can be exhibited. However, the base 1 is easily worn by the increase in the mass of the seismic weight 2, and the seismic weight 2 is resistant to falling from the worn base 1 and thus has a problem in use for a long time. .
[0025]
The present invention solves the above problems and provides a seismic device that can be driven reliably. Reference numeral 8 denotes a contact portion formed between the seismic lever 5 and the operating shaft 3, and the seismic lever 5 is a spring. When driven by the means 7, the contact portion 8 pushes down the push-up plate 4 to erect the seismic weight 2.
[0026]
At this time, the seismic lever 5 is biased in the direction of the push-up plate 4 by the spring means 7, and the contact portion 8 pushes the side portion of the operating shaft 3 from the support shaft 5a side, so that the operating shaft 3 is driven sideways. Thus, the small hole 1a of the base 1 does not come into contact with the inner edge on the support shaft 5a side.
[0027]
As shown in FIG. 2, when the combustor is used again, if the operation lever 13 is driven in the centering direction, the stopper 5b and the locking piece 14b are engaged with each other so that the rotating plate 14 and the push-up plate 4 are seismically sensitive. A gap is formed between the lever 5 and the lever 5. At this time, since the abutting portion 8 comes off the side of the operating shaft 3 as the seismic lever 5 is driven by the rotating plate 14, the seismic weight 2 slides sideways when it falls to the opposite side of the support shaft 5a. You can easily fall down without it.
[0028]
Further, in another embodiment shown in FIG. 3, 4a is a taper that forms the push-up plate 4 in a disk shape and has an outer diameter obliquely downward provided around it, and 5b is a smaller diameter than the push-up plate 4 and is seismic. A circular hole formed in the lever 5 constitutes the abutting portion 8 at the inner edge of the circular hole 5b.
[0029]
When the seismic lever 5 is driven by the spring means 7, the abutment portion 8 pushes down the push-up plate 4 over the entire inner edge of the circular hole 5 b while coming into contact with the taper 4 a of the push-up plate 4. When erecting, the operating shaft 3 is located at the center of the small hole 1a of the base 1.
[0030]
Further, in the embodiment shown in FIG. 5, the seismic lever 5 is provided higher on the support shaft 5a side than the operating shaft 3, so that when the stopper 5b and the locking piece 14b are engaged at the set position of the automatic fire extinguishing device 6. A wide gap is formed between the seismic lever 5 and the push-up plate 4 on the side of the support shaft 5a.
[0031]
For this reason, when the seismic weight 2 falls to the opposite side of the support shaft 5a side of the seismic lever 5, the seismic weight 2 falls greatly before the push-up board 4 hits the seismic lever 5, so the push-up board 4 feels vigorously. The shock lever 5 hit the shock lever 5 and was driven reliably, and the stopper 5b was disengaged from the locking portion 14b.
[0032]
【The invention's effect】
In the present invention, a contact portion 8 is provided between the seismic lever 5 and the operating shaft 3 or the push-up plate 4, and when the seismic lever 5 pushes down the push-up plate 4 to return the seismic weight 2, the base Since a gap is provided between the inner edge of the small hole 1a and the operating shaft 3, and the push-up plate 4 and the seismic lever 5 are opposed to each other through the gap at the set position of the automatic fire extinguishing device 6, the seismic weight 2 The operating shaft 3 does not come into contact with the inner edge of the base 1 or the abutting portion 8 when the seismic lever 5 is tilted to the opposite side of the support shaft 5a side, and the seismic weight 2 is easily tilted without sliding sideways and pushed up. The force with which the plate 4 drives the seismic lever 5 is no longer lost.
[0033]
In addition, in order to improve the accuracy of the vibration that tilts the seismic weight 2 and the inclination angle of the combustor, the positional relationship of the contact portion 8 of the seismic lever 5 is specified. It was not an increase, but it could be implemented inexpensively with a simple structure.
[0034]
Further, if the push-up plate 4 is formed in a disc shape and is provided with a taper 4a around it, the engaging portion of the operating shaft 3 of the seismic lever 5 is provided by the circular hole 5b, and the contact portion 8 is formed on the inner edge, Since the push-up plate 4 is pushed down by the entire inner edge of the circular hole 5b of the seismic lever 5 while the abutting portion 8 abuts the taper 4a, the operating shaft 3 is located at the center of the small hole 1a of the base 1, and the operating shaft 3 and the small hole 1a of the base 1 are not in contact at all.
[0035]
Furthermore, since the seismic lever 5 has a wide gap with the push-up plate 4 on the support shaft 5a side, the push-up plate 4 vigorously vibrates after the seismic weight 2 is greatly tilted to the opposite side of the support shaft 5a side. 5 and the force with which the push-up plate 4 drives the seismic lever 5 increases. For this reason, the seismic lever 5 can be reliably driven without increasing the weight of the seismic weight 2.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of an essential part of a fire extinguishing position of a combustor using a seismic device as an embodiment of the present invention.
2 is a cross-sectional view of a main part of a fire extinguisher main body showing a normal use state of the combustor shown in FIG. 1;
FIG. 3 is an enlarged cross-sectional view of the main part of the seismic device in the upright operation state of the seismic weight at the fire extinguishing position of the combustor according to another embodiment of the present invention.
FIG. 4 is an enlarged cross-sectional view of a main part when the seismic weight erecting of the seismic device is completed at the fire extinguishing position of the combustor shown in FIG. 3;
FIG. 5 is a cross-sectional view of a main part of a fire extinguisher main body at a normal use state position of a combustor showing another embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Base 1a Small hole 2 Seismic weight 3 Actuation shaft 4 Push-up board 4a Taper 5 Seismic lever 5a Support shaft 5b Circular hole 6 Automatic fire extinguishing device 6a Engagement part 7 Spring means 8 Contact part

Claims (3)

The seismic weight 2 mounted on the base 1, the operating shaft 3 extending downward from the seismic weight 2 through the small hole 1 a of the base 1, and the push-up attached to the lower portion of the operating shaft 3 a plate 4, and the seismic lever 5 that rotates around the support shaft 5a which is provided on the base 1 placed on top of the push-up plate 4, that match engages the engaging portion 6a at a set position within the seismic lever 5 and automatic fire extinguishing device 6 is provided,
The spring means 7 for driving the seismic lever 5 rotates around the support shaft 5a in the direction and automatic fire extinguishing device 6 direction of the push-up plate 4 provided, operating shaft 3 which is inclined at a fall of the seismic weight 2 pushed pivots seismic lever 5 via the plate 4, sensitive seismic lever 5 is a seismic device combustor operating the automatic fire extinguishing device 6 to remove the engaging portion 6a,
The seismic lever 5 is made possible many pivoting extinguishing position of the automatic fire extinguishing system 6 than the set position to be engaged with the engaging portion 6a, push the seismic lever 5 to push-up plate 4 in this extinguishing position The seismic weight 5 lowered to erect the seismic weight 2 and returned to the set position of the automatic fire extinguishing device 6 and the push-up plate 4 attached to the operating shaft 3 face each other with a gap between them,
The push-up plate 4 is formed in a disc shape, and the seismic lever 5 is formed with a circular hole 5b having a diameter smaller than that of the disc-like push-up plate 4 so as to pass through the operating shaft 3, so that the sense in the vicinity of the circular hole 5b is formed . the seismic lever 5 forms an abutment 8 which contacts the push-up plate 4,
When the seismic lever 5 pushes down the push-up plate 4 toward the fire extinguishing position of the automatic fire extinguishing device 6 , the abutment portion 8 raises the seismic weight 2 while driving the operating shaft 3 or the push-up plate 4 to the side. , the erecting during seismic weight 2 seismic lever 5 is returned to the set position, characterized that you form a gap between the inner edge of the support shaft 5a side of the small hole 1a of the base 1 and the actuating shaft 3 Combustor seismic drive structure.   The push-up plate 4 is formed in a disc shape and is provided with a taper 4a that expands the outer diameter obliquely downward around the periphery, and the seismic lever 5 is formed with a circular hole 5b having a smaller diameter than the disc-like push-up plate 4, A contact portion 8 is provided at the inner edge of the circular hole 5b. The contact portion 8 presses down the push-up plate 4 over the entire inner edge of the circular hole 5b while contacting the taper 4a of the push-up plate 4, so that the operating shaft 3 is attached to the base 1 of the base 1. 2. The drive structure for a combustor shock absorber according to claim 1, wherein the drive structure is located in the center of the small hole 1a.   The seismic lever 5 at the set position of the automatic fire extinguishing device 6 is provided higher on the support shaft 5a side than the operating shaft 3, and the gap between the seismic lever 5 and the push-up plate 4 on the support shaft 5a side is wide. The drive structure of a combustor shock absorber according to claim 1.

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