JPS6319714Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a gas appliance in which a thermocouple is provided on the outside of a burner provided with flame holes on the circumference, thereby providing a safety measure in the event of a burner misfire.

Originally, when a thermocouple is exposed to the inner flame of a combustion flame, it tends to corrode due to a reduction reaction, and it takes time to preheat at the time of ignition, and the heat-sensitive part of the thermocouple is This involves inconveniences such as the hassle of installing it in a predetermined position.

Conventionally, in order to solve this problem, it has been known to support a thermocouple separately from the burner by screwing it to the burner support plate (Utility Model Publication No. 53-26275
No.), with this one, when assembling and repairing the burner body,
When removing the burner, the thermocouple must also be removed, which is time-consuming. There is also a known method that inserts a thermocouple into the burner body and fixes it with screws (Utility Model Application No. 56-112436), but the above-mentioned trouble is still required when removing the burner body for assembly, maintenance, cleaning, etc. In addition, it is difficult to secure the predetermined positions of the flame hole and the heat-sensitive portion, and it is difficult to assemble the flame hole and the heat-sensitive portion.

The purpose of the present invention is to provide a gas appliance that eliminates such inconveniences, and a large number of flame holes 2 are arranged on the circumferential surface of the burner 1 and are connected to the internal gas chamber 8. In the case where the thermocouple 3 is installed oppositely, a locking groove recess 4 is formed in the thermocouple 3, and an insertion hole 9 passing through the thermocouple 3 and an insertion hole 9 perpendicular to the insertion hole 9 are formed in the burner 1. A supporting part 5A is provided with a stop support locking opening 6, and a supporting part 5A whose tip is locked in the locking opening 6 by a substantially doglegged spring plate, and one both ends are engaged with the recess of the thermocouple 3. Support part 5 with a convex part 5' formed on the holding part
The thermocouple 3 is locked to the burner 1 at a predetermined position by a stop support 5 consisting of B and 5B.

To explain the embodiment in detail with reference to the drawings, Fig. 1 is a partial sectional view of the main part, and 1 is a burner, which is an annular burner body with a concave groove forming a gas chamber 2, and a removable member is attached to the upper surface of the burner body. A burner cap 1' is provided with a large number of tooth shapes protruding from the lower surface of the burner cap 1', which abut against the upper surface of the outer peripheral wall of the burner body, and between each tooth shape a flame on the peripheral surface leading to the gas chamber 8 is provided. A hole 2 is formed. A recess 4 is formed as a locking groove on the support side of the thermocouple 1. The burner 1 is provided with a hole 9 into which the thermocouple 3 is inserted above the lower surface, and a locking opening 6 for a locking support at a locking end 10 which is perpendicular to the insertion hole 9 and hangs down from the outside of the burner 1.
5 is a locking support, whose tip is connected to a locking opening 6 with a roughly doglegged spring plate.
The support part 5A is fixed to the thermocouple 3 at both ends.
It consists of supporting parts 5B, 5B which engage with the recessed part 4 of and form a convex part 5' on the holding part.

FIG. 2 is a sectional view taken along the line A-A in FIG. 6 is press-fitted with the tip support portion 5A of the stop support 5, and the concave portion 4' of the thermocouple 3 is engaged with the convex portion 5' of one of both ends 5B, 5B.

FIG. 3 is a perspective view of the retainer 5, in which a convex portion 5' for retaining the thermocouple 3 extends inward.

Next, to explain its operation, first, both ends 5B, 5B of the stopper support 5 are inserted into the locking port 6 of the locking end 10 provided on the burner 1 from the sides with a narrow width and press-fitted, and then the thermocouple is inserted from below. 3 at both ends of the stop support 5B, 5B
The recess 4 of the thermocouple 3 and the protrusions 5', 5' of the stop support 5 engage and support the burner 1. It is set in place with the flame hole. Furthermore, when attaching and detaching, if the thermocouple 3 is pulled downward, the engagement between the concave portion 4 and the convex portion 5 is disengaged, making disassembly easy.
Incidentally, as another embodiment, the burner cap 1' may be integrated with the burner, and the locking end 10 is not limited to a hanging portion at the outer peripheral end of the burner.

As described above, according to the present invention, the stop support 5 is press-fitted into the recess 4 provided in the thermocouple 3 and the lock opening 6 provided perpendicularly to the insertion hole 9 of the burner 1. a convex portion 5' that engages with the concave portion 4 at one end;
5' is provided so that the thermocouple 3 can be set at a predetermined height with respect to the flame, making it easy to install and remove the thermocouple 3. It can also be set in a predetermined position, allowing for mass production and assembly. It is easy to handle, easy to clean, and can be easily reset to a predetermined position during assembly, so there are no corrosion of thermocouples or changes in preheating time.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a main part showing an embodiment of the present invention, FIG. 2 is a sectional view taken along line AA in FIG. 1, and FIG. 3 is a perspective view of a stop support. 1... Burner, 2... Flame hole, 3... Thermocouple, 4
... recess, 5 ... locking support, 6 ... locking opening, 8 ...
...gas chamber, 9...insertion hole, 10...locking end.

Claims (1)

[Scope of utility model registration request] In the case where a large number of flame holes 2 are arranged on the circumferential surface of the burner 1 and are connected to an internal gas chamber 8, and a thermocouple 3 is disposed on the outside thereof, the thermocouple 3 has a locking groove recess 4.
The burner 1 is provided with an insertion hole 9 passing through the thermocouple 3 and a stop support locking opening 6 perpendicular to the insertion hole 9. A locking support 5 consisting of a support portion 5A that locks into the locking port 6, and support portions 5B, 5B each having a convex portion 5' formed on a holding portion that engages the concave portion 4 of the thermocouple 3 at both ends of the support portion 5A. A gas appliance characterized in that a thermocouple 3 is fixed to a burner 1 at a predetermined position.