JP2812155B2 - Oil burner with automatic small combustion mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mechanism for automatically lowering a thermal power at a constant rise in room temperature during use of a core-up / down type oil combustor.

[0002]

2. Description of the Related Art In a petroleum combustor which burns by raising and lowering a combustion wick, oil is sucked up by the combustion wick and ignited by an appropriate method, whereby the oil is vaporized and burned. Then, when the combustion is continued, the room temperature gradually rises, and when the temperature reaches the room temperature desired by the user, the fire power of the oil combustor is adjusted by manually operating the wick up / down lever for adjusting the height of the wick. Things.

[0003] The applicant is currently conducting research on using a temperature sensing thermistor to operate a solenoid to automatically reduce thermal power from large combustion to small combustion.

[0004]

The oil combustor using a wick has many advantages such as low price, low maintenance cost, and portability. There is a demand for simplicity of controlling operation at room temperature by microcomputer control like a fan heater.

The configuration proposed by the applicant to operate a solenoid using a temperature detecting thermistor and to move a combustion wick from a large combustion position to a small combustion position by using a spring is a method of raising and lowering the core by the recoil of the spring. Move, which has a subtle effect on the wick height required for small combustion, resulting in unstable thermal power.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention solves the above-mentioned problems by detecting a lead-up / down lever 2 for vertically moving a lead in conjunction with a lead-up / down shaft 1, and detecting when a room temperature rises above a predetermined temperature. A solenoid 4 operated by the thermistor 3 is provided;
A reset plate 5 for driving the core vertical lever 2 from the large combustion position to the small combustion position by the spring A, and a locking plate 6 for locking the reset plate 5 to the large combustion position by the spring B are provided. Is a fixed member which is held integrally with the core vertical device substrate in the oil combustor in which the reset plate 5 is actuated when the room temperature rises, facing the solenoid 4, and the core vertical lever 2 is rotated to the small combustion position. 7, a spring stopper 10 and a locking portion 10a
The stopper 10 and the locking portion 10a are engaged at the small combustion position of the core vertical shaft 1.

The above-mentioned core vertical lever 2 is an operation lever 2b provided with an upper and lower plate 2a interlocked with the core vertical shaft 1 and an operation part 2c.
The fixed member 7 is constituted by a rotating plate 7a which holds the forced rotation by the return spring 8 on a locking shaft 9a of a vibration sensing device 9 provided on the core vertical device board for sensing an earthquake or the like, The stopper 10 provided on the operation lever 2b is
The fixing member 7 and the stopper 10 are prevented from engaging with each other when the vibration sensing device 9 is operated by engaging with the locking portion 10a provided at the position a.

Further, at the time of the center lowering operation by the center vertical lever 2, the stopper 10 is deformed by the spring property and is disengaged from the locking portion 10a, and the center vertical lever 2 can be manually rotated to the fire extinguishing position. It is to be.

[0009]

When the operating portion 2c of the wick vertical lever 2 is depressed, the wick vertical shaft 1 is rotated to raise and lower a combustion wick (not shown). At this time, the operation lever 2b of the core up / down lever 2 rotates together with the rotating plate 7a that becomes the fixing member 7, and the upper / lower plate 2a abutting on one side of the operation lever 2b rotates the core up / down shaft 1. Rotating plate 7
a is to engage with the locking shaft 9a of the seismic device 9 against the force of the return spring 8 to hold and fix the center raised position (FIG. 1).

A reset plate 5 that rotates with the force of a spring A about the core vertical shaft 1 abuts on the core vertical lever 2, and a locking plate 6.
Is applied by the force of the spring B in the direction of engaging with the reset plate 5 at all times.
Are engaged. On the other hand, a solenoid 4 operated by a thermistor 3 that senses a rise in room temperature and outputs a signal is opposed to the vicinity of the locking plate 6. When the room temperature rises to a predetermined temperature, the solenoid 4 is reset by a reset plate 5. When the reset plate 5 is disengaged from the locking plate 6 by the spring A
Is slightly moved downward to shift from the large combustion position to the small combustion position (FIG. 2).

A spring-like stopper 10 attached between the core up / down lever 2 and the fixing member 7 abuts on the locking portion 10a with the rotation of the core up / down lever 2, and reduces the impact of the spring A. And the rotation of the core up / down lever 2 is held at the small combustion position.

Some oil combustors of this type are provided with a mechanism for extinguishing the fire by forcibly rotating the core up / down lever 2 in the core down direction by a return spring 8. In such a structure, a stopper 1 for stopping the operation of the core up / down lever 2
The presence of 0 and the locking portion 10a hinders rotation of the core up / down lever 2 and is disadvantageous for an automatic fire extinguishing mechanism aiming for reliable fire extinguishing. The present invention focuses on the rotating plate 7a fixed during normal combustion as the fixing member 7, and operates the operating lever 2b and the rotating plate 7a.
A stopper 10 and a locking portion 10a are provided between
When the seismic device 9 operates and the locking shaft 9a that locks the rotating plate 7a moves, the rotating plate 7a rotates together with the operation lever 2b by the force of the return spring 8, and at this time, the stopper 10 The stop 10a also rotates together and does not engage. (FIG. 4)

On the other hand, if the elastic force of the spring-like stopper 10 is appropriately set in relation to the locking portion 10a, the stopper 10 is deformed when a strong force is applied to the core vertical lever 2, and the engagement with the locking portion 10a is changed. As a result, the fire can be extinguished by rotating only the core up / down lever 2 by manual operation or the like. (Fig. 3)

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction will be described below with reference to the drawings showing an embodiment. Reference numeral 1 denotes a wick vertical shaft for raising and lowering a wick not shown,
Reference numeral 2 denotes a core up / down lever for driving the core up / down shaft 1. The core up / down lever 2 comprises an upper / lower plate 2a interlocked with the core up / down shaft 1 and an operation lever 2b provided with an operation section 2c. 2d is a pin provided on the minus side of the operation lever 2b, 2e is a slide hole provided on the minus side of the upper and lower plate 2a and fitted with the pin 2d, and when the operation lever 2b rotates about the rotation shaft 11, the pin 2
d drives the upper and lower plates 2a through the slide holes 2e and rotates the core vertical shaft 1 to perform the core vertical operation.

Reference numeral 3 denotes a thermistor (shown in the circuit diagram of FIG. 5) for detecting the rising room temperature by using an oil combustor. Reference numeral 3a denotes a volume (variable) for changing the detection of the room temperature of the thermistor 3 according to the user's preference. Resistance), 4 is a solenoid having a pin 4a which moves forward and backward upon receiving a signal detected by the thermistor 3 when the room temperature rises above a set temperature, 4b is a solenoid drive for controlling the operation of the solenoid 4 by the thermistor 3, volume 3a Circuit.

A reset plate 5 is provided coaxially with the upper and lower shafts 1 together with the upper and lower plates 2a.
One side of the reset plate 5 and the other end 5a of the reset plate 5
When the reset plate 5 and the lock plate 6 are disengaged from each other, the reset plate 5 pushes up and down the upper and lower plates 2a by a predetermined distance by the force of the spring A, thereby preventing large combustion. The small combustion has a function of forcibly rotating the core vertical shaft 1.

Reference numeral 6 denotes a locking plate which is rotated about a locking shaft 6b and is urged by a spring B toward the other end 5a of the reset plate 5.
The other end 5 of the reset plate 5 in the large combustion position in the middle of the locking plate 6
The engaging step 6a is provided to engage with the pin 4a, and the tip 6c is positioned so as to be in contact with or separated from the pin 4a of the solenoid 4.

Numeral 7 denotes a core vertical device substrate or a fixing member which is held integrally with the core vertical device substrate. The fixing member 7 in the embodiment comprises a rotary plate 7a provided coaxially with the rotary shaft 11 of the operating lever 2b. ing. Reference numeral 7b denotes a claw piece provided on the rotating plate 7a so that the operation lever 2b and the rotating plate 7a cooperate with each other when the center is moved up and down. The claw piece 7b is locked with the operating lever 2b.

7c is a seismic sensor 9 after the combustion wick rises during normal operation.
The rotating plate 7a is held at a fixed position against the force of the return spring 8 by a locking portion that engages with the locking shaft 9b. Reference numeral 8 denotes a return spring that locks one end to the rotating plate 7a and forcibly moves the rotating plate 7a in the core lowering direction.
When the locking portion 7c comes off, the operation lever 2b is forcibly rotated to perform the center lowering operation.

Numeral 9 is a seismic device comprising a pendulum or the like for sending a signal of a fire extinguishing operation when a shaking such as an earthquake is sensed.
Is released from the locking portion 7c, and the rotating plate 7a is rotated by the force of the return spring 8. Reference numeral 10 denotes a spring stopper provided between the fixing member 7 and the center vertical lever 2, and 10 a denotes a locking portion for engaging the stopper 10 at the small combustion position of the center vertical shaft 1. The stopper 10 is attached to the operation lever 2b.

In the normal combustion position, the stopper 10 and the engaging portion 10a with which the stopper 10 is engaged are located at a position distant from the stopper. When the core vertical lever 2 is driven by being disengaged from the core vertical lever 2, the core vertical lever 2 tends to move largely due to the impact of the spring A. However, the stopper 10 and the locking portion 10 a are closely engaged and the core vertical lever 2 is engaged. 2 does not move beyond the small combustion position.

[0022]

Since the present invention has the above-described configuration and operation, the core up / down lever 2 is moved by the solenoid 4, the locking plate 6, the spring A, and the reset plate 5 by sensing a room temperature higher than a predetermined value. Even when the small combustion position is moved from the large combustion position, the impact is reduced by engaging the locking stopper 10a with the spring stopper 10 attached to the center vertical lever 2 at the small combustion position. The combustion position can be shifted to stable small combustion without being shifted upward and downward by recoil.

When the vibration sensing device 9 is used as a fire extinguishing operation method, a stopper 10 is attached to the operation lever 2b.
The stopper 10a is provided on the rotating plate 7a which is rotated by the return spring 8, so that the stopper 10 and the stopper 10a
Are not engaged, and the operation lever 2b rotates smoothly.

Further, since the spring property of the stopper 10 is appropriately set so that the engagement is released when the core up / down lever 2 is strongly operated, a large / small combustion range is required until a strong force is required for manual operation. It is understood that abnormal combustion outside the small combustion range is less likely to occur, and that the oil combustor can be extinguished by manual operation by virtue of strong operation.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view of a wick up / down operation unit showing an embodiment of the present invention, showing a normal combustion state in which a wick is set at a highest position.

FIG. 2 is a partially cutaway front view of a core up / down operation unit when room temperature is sensed over a certain level and automatically shifted to a small combustion position.

FIG. 3 is a partially cutaway front view of a core up / down operation unit when a core up / down lever is manually operated to extinguish a fire.

FIG. 4 is a partially cutaway front view of the core up / down operation unit when the fire extinguishing device operates and automatically extinguishes the fire.

FIG. 5 is a circuit diagram of an electronic control unit according to the present invention.

[Explanation of symbols]

 Reference Signs List 1 core vertical shaft 2 core vertical lever 2a upper and lower plate 2b operation lever 2c operation part 3 thermistor 4 solenoid 5 reset plate 6 locking plate 7 fixing member 7a rotating plate 8 return spring 9 seismic device 9a locking shaft 10 spring stopper 10a Locking part A Spring B Spring

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) F23D 3/28 F23D 3/32 F23N 5/14

Claims (3)

(57) [Claims] 1. A core vertical lever (2) for vertically moving a core in conjunction with a core vertical shaft (1) and a solenoid (4) operated by a thermistor (3) for detecting when the room temperature rises to a predetermined temperature or higher. And a locking plate 6 for locking the reset plate 5 in the large combustion position by a spring B. The locking plate 6 is connected to the solenoid 4 by a spring A. In a petroleum combustor that opposes the reset plate 5 when the room temperature rises and rotates the core up / down lever 2 to the small combustion position, the core up / down device substrate or the fixing member 7 held integrally with the core up / down device substrate, A spring stopper 10 and a locking portion 10a are provided between the upper and lower levers 2, and the stopper 1
An oil combustor with an automatic small-combustion mechanism in which 0 and the engaging portion 10a are engaged at a small-combustion position of the core vertical shaft 1. 2. The core up / down lever 2 comprises an operation lever 2b provided with an upper / lower plate 2a and an operation portion 2c interlocked with the core up / down shaft 1. And a stopper 10a provided on the operation plate 2a and a stopper 10a provided on the rotation plate 7a. The stopper 10a is provided on the operation plate 2a. 2. The oil combustor with an automatic small combustion mechanism according to claim 1, wherein the oil combustor is engaged with the oil combustor. 3. When the center lowering operation is performed by the center up / down lever 2, the stopper 10 is deformed by the spring property and disengages from the locking portion 10a, thereby enabling the center up / down lever 2 to rotate. Petroleum combustor with small combustion mechanism.