JPS6034896Y2 - Cylindrical gas burner - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a cylindrical gas burner used in gas infrared stoves and other devices.

Conventionally, in this type of burner, a combustion tube with a combustion plate on the circumferential surface is erected on an underframe, and a thermocouple or other combustion detection element is projected onto the underframe so as to face the outside of the circumferential surface of the combustion tube. established,
It is known that a misfire safety measure is taken, and in this case, a ring frame that fits around the lower end of the combustion tube may be installed on the underframe for the purpose of protecting or holding down the end surface of the combustion plate. However, if you simply install a ring frame, it is easy to damage the combustion plate when attaching and detaching it through the combustion tube, and if you create an escape hole for the element in the ring frame, it is easy to damage the combustion plate when installing it. It is necessary to insert and protrude the detection element, which brings with it the inconvenience of troublesome positioning. A combustion tube 2 equipped with a combustion tube 2 is erected on an underframe 3, and a thermocouple or other combustion detection element 4 is protruded onto the underframe 3 so as to face the outside of the circumferential surface of the combustion tube 2. On the underframe 3, there is a fitting part 5 fitted to the lower end circumferential surface of the combustion tube 2, and a detection element 4.
A ring frame 7 having an insertion portion 6 inserted through the insertion portion 6 is connected to each half portion 7a, 7a on one side and the other side along a diametrical line passing through the insertion portion 6.
It can be attached and detached freely.

In the illustrated combustion tube 2, a combustion plate 1 having an arcuate cross section is attached to each circumferential side of a square cylindrical support frame 8 to form a cylindrical shape, and the combustion plates 1 are adjacent to each other. The non-adjacent side edges of each pair are inserted into the engaging portions 9 on the outer surface of the support frame 8, and the adjacent side edges are pressed with a presser piece 10 to close the support frame. 8, and a first mounting base 11 bent outward at the lower end of the holding piece 10 and a second mounting base 12 bent outward at the lower end of the retaining part 9 are attached to each shape. Thus, the combustion tube 2 is erected on the underframe 3 at each mounting base 11.12.

The insertion portion 6 of the ring frame 7 described above is formed by a notch in the abutting end surfaces of the half 7a on one side and the half 7a on the other side of the ring frame 7. Part 7a,
? In order to standardize the parts of a, both halves 7a, ? A notch of the same shape is also formed on the abutting end surface of the other end of a, and the pilot burner 13 provided in the underframe 3 is made to face the second insertion portion 6' formed by this.

Further, each section 7a has the first and second mounting bases 11 described above.
．． The first and second holding parts 14 and 15 are superimposed on the upper surface of the frame 12, and each part 7a is connected to the first holding part 14 on one side and a flat plate part on the other side that abuts on the underframe 3. It was supposed to be screwed to the underframe 3 at this point.

In the drawings, reference numeral 16 indicates a sealing material inserted between the combustion tube 2 and the underframe 3.

Next, to explain the assembly of the present burner, first, the combustion tube 2 is erected on the underframe 3 as described above, and then the ring frame is attached to the lower end surface of the combustion tube 2 from the lateral force direction side and the other side. Assemble the half parts 7a, 7a of 7 and screw them onto the underframe 3 as described above.
, 7a are securely positioned with their ends abutting against the combustion detection element 4 protruding above the underframe 3, making it easy to screw them in place afterwards, and also to hold down the combustion plate 1 by assembling from the lateral direction. This also ensures that the combustion plate 1 is not damaged, unlike the case where the ring frame 7 is attached and detached through the combustion tube 2.

Further, the ring frame 7 prevents the seal 16 from protruding,
Furthermore, it protects the end face of the combustion plate 1 and also serves as a decorative frame.

In this way, according to the present invention, the ring frame 7 fitted to the bottom curved surface of the combustion cylinder 2 is arranged in half on one side and on the other side along a diametrical line passing through the insertion part 6 of the combustion detection element 4. a,? The ring frame 7 is attached to the underframe 3 in a separable manner as shown in FIG. The direction matches the direction in which the combustion plate 1 is held down, so that the combustion plate 1 can be held securely, and when assembling, each half 7a, 7a uses the combustion detection element 4 as a positioning member, and attaches each end thereof to the element 4. Just by making contact, the ring frame 7 can be easily and reliably positioned, making installation easy, and the ring frame 7 also serves as a decorative frame as well as holding down the combustion plate 1, providing the effect of providing a good-looking and robust burner.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an example of the proposed burner, Fig. 2 is a cutaway plan view thereof, and Figs. 3 to 6 are from line ■-m to VI in Fig. 2.
- VI line cut side view cross section side view 1... Combustion plate, 2
... Combustion cylinder, 3 ... Underframe, 4 ...
... Combustion detection element, 5... Fitting part, 6... Curved insertion part, 7... Ring frame, 7a... Curved half part.

Claims (1)

[Scope of utility model registration request] A combustion tube 2 having a combustion plate 1 on its circumferential surface is erected on an underframe 3, and a thermocouple or other combustion detection element 4 is protruded onto the underframe 3 so as to face the outer side of the combustion tube 2. In this case, a ring frame 7 is provided on the underframe 3, and includes a fitting part 5 fitted to the lower end peripheral surface of the combustion tube 2, and an insertion part 6 through which the detection element 4 is inserted. A cylindrical gas burner that is separably attached to each half part 7a, 7a on one side and the other side along a diametrical line passing through the insertion part 6.