JPS6242256Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a gas burner device used for heating test tubes, cauterizing wire rods, etc.

"Prior Art" The applicant has already provided this type of gas burner device as shown in Japanese Utility Model Application Publication No. 94057/1983.

In view of the disadvantages and inconveniences of the conventional ignition method, the conventional gas burner device is provided with an inner pipe communicating with a gas supply pipe whose opening and closing are controlled by a solenoid valve inside the cylindrical body constituting the burner section. At the same time, on the outer periphery of the inner tube, a spring and a movable electrode which are always biased by the spring into contact with a fixed electrode provided at the combustion flame collection part on the upper end side of the cylindrical body are fitted on the upper and lower sides, respectively,
A biasing coil forming a magnetic circuit is wound around the outer periphery of the cylindrical body at a suitable location, and the movable electrode is moved downward against the spring by energization of the biasing coil, and the movable electrode is connected to the fixed electrode. By separating from the inner pipe, a spark is generated and the gas supplied from the gas supply pipe through the inner pipe can be automatically ignited.

``The problem that the invention attempts to solve'' However, in the case of such conventional equipment, the type of gas used, i.e. propane gas, natural gas, etc.
For other city gases, etc., a special nozzle must be installed in the inner pipe connected to the gas supply pipe, so the nozzle must be replaced every time the type of gas changes, making it difficult to use. It had the problem of being complicated. In addition, the cylindrical body including the inner pipe is screwed and fixed to the tip of the gas supply pipe, and the position in which the burner part is used is limited by the fixed state. This also caused great disadvantages and inconveniences in terms of work.

``Means for Solving the Problems'' Therefore, the present invention was developed to effectively solve the problems of the conventional device, and the inner pipe and the gas supply pipe are fixed to the cylindrical body. The regulator is connected via a connecting pipe to the regulator, which has a screw hole that communicates with its own internal passage, has a recess in its upper part into which the lower end of the inner pipe fits, and A nozzle part is provided in the recess to project upward and face the inside of the inner pipe, and an adjustment needle is provided that moves up and down inside the nozzle part by external operation to change the clearance of the nozzle opening, and the screw of the adjuster A configuration was adopted in which the connecting pipe connected to the hole was rotatably fitted to the gas supply pipe via a packing material.

``Operation'' Therefore, in the case of the present invention, the adjustment needle in the regulator is moved up and down by external operation, and the clearance of the nozzle opening of the nozzle part is changed to obtain the amount of passage depending on the type of gas used. Not only can it be used immediately for any gas, but by rotating the cylindrical body, the connecting pipe connected to the regulator fixed to the cylindrical body can be connected to the gas supply pipe. Since the cylindrical main body is allowed to rotate, the burner part can be used at any angle.

"Example" Hereinafter, the present invention will be described in detail based on an example illustrating the gas burner device according to the example,
Basically, it is based on the conventional equipment mentioned above.
As shown in FIG. 1, an inner tube 2 communicating with a gas supply tube 9 whose opening and closing are controlled by a solenoid valve (not shown) is provided inside a cylindrical body 1 constituting a burner section. The spring 4 is connected to the spring 4 through a holding cylinder 3 formed from an insulating material on the outer periphery of the spring 2.
A cylindrical movable electrode 7 made of a magnetic metal material that is always urged into contact with a fixed electrode 6 provided on the combustion flame collection part 5 on the upper end side of the cylindrical body 1 is fitted on the upper and lower sides, respectively, and the above-mentioned holding A biasing coil 8 forming a magnetic circuit is wound around the outer circumference of the cylinder 3 at a suitable location, and the biasing coil 8 is energized by a switch means such as a foot switch, and the movable electrode 7 is moved downward against the spring 4. By separating the movable electrode 7 from the fixed electrode 6, a spark is generated and the gas supplied from the gas supply pipe 9 through the inner pipe 2 is automatically ignited.

In addition, an ignition port 2a is drilled in the upper part of the inner pipe 2 located at the combustion flame collection part 5, and an air inlet 2b is bored in the lower part at an appropriate position, and the lower air inlet 2b can be operated externally. It is assumed that the air conditioning means 10 is energized.

The connection structure between the inner pipe 2 and the gas supply pipe 9 is such that the inner pipe 2 and the gas supply pipe 9 are connected via a regulator 11 fixed to the lower part of the cylindrical body 1 with screws or the like, and a connecting pipe 12 directly connected and fixed to the regulator 11. Composition and making.

Specifically, the regulator 11 has a side surface of the box-like base 11a that communicates with its own internal passage and connects the connecting pipe 1.
The base 11 has a screw hole 13 into which the ends of the base 11 are screwed together.
A recess 14 into which the lower end of the inner tube 2 is tightly fitted is formed in the upper part of the inner tube 2, and a small diameter nozzle portion 15 is provided in the recess 14 to protrude upward and face the inside of the inner tube 2. An adjustment needle 16 that can move up and down from 11a into the nozzle part 15 is provided, and the clearance of the nozzle opening 15a of the nozzle part 15 is changed by moving the adjustment needle 16 up and down, so that the amount of gas passing can be adjusted.

Incidentally, the vertical movement of the adjustment needle 16 is achieved by integrally providing a knob 17 at the lower part and forming a threaded part 16a on the upper outer periphery of the knob 17.
This is done by screwing into the screw hole 18 on the lower surface of the base 11a and externally operating the knob 17. Furthermore, the end of the inner tube 2 fitted into the recess 14 of the adjuster 11 is tightened and fixed via a screw member 19. It goes without saying that the screw hole 18 into which the screw portion 16a of the adjustment needle 16 is screwed is sealed with a packing material 20.

Furthermore, the connecting pipe 12 directly connected and fixed to the screw hole 13 of the regulator 11 is connected to one or more O
It is configured to be rotatably fitted onto the gas supply pipe 9 equipped with a packing material 21 made of a ring or the like. still,
It is also optional to rotatably fit the connecting pipe 12 into the gas supply pipe 9 depending on the implementation.

Therefore, the inner pipe 2 and the gas supply pipe 9 are connected to the connecting pipe 12, the internal passage of the regulator 11, and the nozzle port 1.
5a, and if the cylindrical main body 1 is grasped and rotated in the left-right direction, the connecting pipe 12 can be rotated accordingly with respect to the gas supply pipe 9 without causing gas leakage. Since the cylindrical main body 1 is allowed to rotate, the burner section can be used at any angle.

Further, in the figure, 22 indicates an electric wire connected to the electric circuit, which connects the energizing coil 8 to the fixed electrode 6 and the regulator 1.
1. A circuit to the movable electrode 7 is constructed via the inner tube 2, spring 4, etc.

Therefore, in the gas burner device according to this embodiment, the adjustment needle 16 facing into the nozzle opening 15a of the nozzle portion 15 of the regulator 11 can be adjusted by external operation of the knob 17 depending on the type of gas used. After moving up and down to change the clearance of the nozzle port 15a, when electricity is applied via the switch means, the gas supply pipe 9 is opened by the solenoid valve, gas is supplied into the regulator 11, and gas is supplied from the nozzle port 15a. The gas is injected into the inner tube 2 while the flow rate is optimally adjusted, and at the same time, the movable electrode 7 separates from the fixed electrode 6 to generate a spark, so that the gas is automatically ignited and combusted in the combustion flame collection part 5. That will happen. The clearance of the nozzle 15a is adjusted to be narrower for propane gas and wider for city gases other than natural gas. Therefore, natural gas is adjusted to be between the two gases.

Moreover, if it becomes necessary to change the use position of the burner part for work in such a state, by grasping the cylindrical body 1 and rotating it in a predetermined direction, it can be connected to the gas supply pipe 9. Since the tube 12 rotates and allows the cylindrical body 1 to rotate, a flexible working posture as shown in FIG. 2 can be easily obtained. Further, since the connecting pipe 12 is fitted to the gas supply pipe 9 with the packing material 21 interposed therebetween, there is no fear of gas leakage even when the pipe rotates.

"Effects of the Invention" As described above, the present invention has a structure in which the inner pipe and the gas supply pipe are connected to the regulator via the connecting pipe, and the regulator has a screw hole that communicates with its own internal passage. A recess into which the lower end of the inner tube is fitted is formed in the upper part, a nozzle part that projects upwardly is provided in the recess, and an adjustment needle that can be moved up and down within the nozzle part by external operation; On the other hand, since the connecting pipe fixed to the screw hole of the regulator is rotatably fitted to the gas supply pipe via a packing material, the adjusting needle in the regulator is simply inserted into the gas supply pipe. If you change the clearance of the nozzle opening of the nozzle part by moving it up and down with external operation, you can easily adjust the optimal passage amount depending on the type of gas used, so you can easily adjust the nozzle according to the type of gas used as usual. Even without replacing it, it can immediately be used with any gas. Furthermore, when the cylindrical body is rotated, the connecting pipe connected to the regulator fixed to the cylindrical body rotates with respect to the gas supply pipe.
Since the cylindrical body is allowed to rotate, the burner part can be used at any angle, which greatly contributes to improved workability compared to the conventional screw-fixed type.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a main part of a gas burner device according to an embodiment of the present invention, and FIG. 2 is a side view showing a state in which a cylindrical body is rotated relative to a gas supply pipe. 1... Cylindrical main body, 2... Inner tube, 3... Holding cylinder,
4...Spring, 5...Combustion flame collector, 6...Fixed electrode, 7...Movable electrode, 8...Issuing coil, 9
... Gas supply pipe, 11 ... Regulator, 12 ... Connection pipe, 13 ... Screw hole, 14 ... Recess, 15 ... Nozzle part, 15a ... Nozzle opening, 16 ... Adjustment needle,
17...Knob, 20,21...Patsukin material.

Claims (1)

[Scope of utility model registration request] Inside the cylindrical body constituting the burner part, an inner tube communicating with a gas supply pipe whose opening and closing are controlled by a solenoid valve is provided, and a spring is attached to the outer periphery of the inner tube, and the spring is always attached to the upper end of the cylindrical body. Movable electrodes that are energized by contact with fixed electrodes provided in the combustion flame collection part are fitted above and below, respectively, and an energizing coil that forms a magnetic circuit is wound around the outer periphery of the movable electrodes via a holding tube. and a gas burner device configured to generate a spark by moving the movable electrode downward against the spring by energizing the biasing coil and separating the movable electrode from the fixed electrode, The inner pipe and the gas supply pipe are connected via a connecting pipe to a regulator fixed to the cylindrical body. A recess is formed into which the lower end fits, and a nozzle part is provided in the recess to project upward and face the inner pipe, and the inside of the nozzle part is moved up and down by external operation to change the nozzle opening clearance. A gas burner device characterized in that an adjustment needle is provided, and a connecting pipe connected to the screw hole of the other regulator is rotatably fitted to the gas supply pipe via a packing material. .