JPH0249482Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a holding device for a thermocouple applied to gas burners and other burners.

(Prior art) Conventionally, as this type of device, for example,
87947 or Utility Model Application No. 58-21754, the holder fixed to the burner is provided with a pair of upper and lower grooves for fitting and supporting the thermocouple, and
A known thermocouple is provided with a pair of left and right locking grooves on both outer sides of the intermediate portion, and the thermocouple is held by an elastic locking pin made of piano wire or the like extending between the two locking grooves.

(Problem to be solved by the invention) However, in this case, the locking pin only acts on the thermocouple at one point between the upper and lower concave grooves, and its support is somewhat unstable. In other words, when the thermocouple is subjected to an external force and tilts outward using one of the two concave grooves as a fulcrum, there is an inconvenience that there is no sufficient support to prevent this. Furthermore, when the locking pin is inserted, its elasticity may cause it to fly off, making it troublesome to insert.

(Means for Solving the Problems) The present invention is a device that does not have such inconveniences, that is, the thermocouple is supported from the outside at multiple locations between the upper and lower grooves, and the thermocouple can be tilted outward. The purpose of this device is to obtain a device for controlling the target.The holder fixed to the burner is equipped with a pair of upper and lower grooves into which the thermocouple is fitted and supported, and a pair of left and right grooves on both sides of the groove. In an apparatus in which the thermocouple is held by an elastic locking pin that is provided with a locking groove and extends between the locking grooves, the locking pin is attached to a coil-shaped outer circumference surrounding the thermocouple at an intermediate portion of its length. It is formed on the winding part of.

(Example) An example of implementing the present invention will be explained with reference to attached drawings.

In the drawings, 1 indicates a burner, and 2 indicates a holder extending to the side thereof, and the holder 2 is fixed to the burner 1 side by screws or other means through a pair of left and right mounting holes 3, 3 at the base of the holder 2. did. The holder 2 is provided with a pair of upper and lower recessed grooves 5, 5 into which the thermocouple 4 is fitted and supported, and a pair of left and right locking grooves 6, 6 on both outer sides of the intermediate portion thereof. The thermocouple 4 is held by a locking pin 7 made of piano wire or other elastic filament extending between both grooves 6, 6.

Although the above is not particularly different from the conventional one, according to the present invention, the locking pin 7 is formed into a coil-shaped winding portion 8 around the outer circumference surrounding the thermo couple 4 at the middle part of the locking pin 7, In this manner, the pin 7 acts to support the thermocouple 4 at at least two locations 8a, 8a, above and below, intermediate between both grooves 5,5. In other words, instead of the conventional one-point support, it is now supported at at least two points, upper and lower, or at multiple points. In the illustrated example, the winding portion 8 has three windings with a relatively small pitch.
Although the coil is wound one to four times, it can also be wound one or two times with a relatively large pitch.

In the illustrated embodiment, the thermocouple 4 has a step at its lower end to form an enlarged portion 4a for positioning.
Furthermore, the holder 2 is provided with a concave portion 9 and a pressing member 10 opposing the concave portion 9 at an end portion thereof for retaining a spark plug (not shown).

(Function) To explain its function, as described above, the locking pin 7 is formed into a coil-shaped winding part 8 at the middle part of its length, and is connected to the thermocouple 4 at least in two places 8a above and below. , 8a, which acts to support the thermocouple 4.
However, if the grooves 5, 5 tilt outward using one of the two concave grooves 5 as a fulcrum due to an inadvertent application of an external force, this advantageously acts to prevent this.

(Effect of the invention) As described above, according to the invention, the locking pin supports the thermocouple from the outside in at least two places, upper and lower, compared to the conventional type that supports it only in one place. The support can be made stable and effective, and the configuration is simply to form a coil-shaped winding part in the middle part of the locking pin, so that the locking pin is held by the thermocouple, and the thermocouple is inserted into the groove. After inserting the locking pin, the locking pin can be locked in the locking groove provided in the holder while being held down with an appropriate means. It has the advantage of being simple in structure and inexpensive, without any inconveniences such as the particles flying off due to its elasticity.

[Brief explanation of the drawing]

Figure 1 is a perspective view of one example of the proposed device, Figure 2 is a perspective view with the thermostat removed, and Figure 3 is a perspective view of an example of the proposed device.
The figure is an exploded perspective view of the holder. 1... Burner, 2... Holder, 4... Thermocouple, 5, 5... Concave groove, 6, 6... Locking groove, 7
... Locking pin, 8 ... Winding part, 8a, 8a ... Supporting part.

Claims (1)

[Scope of utility model registration request] The holder fixed to the burner has a pair of upper and lower concave grooves that fit and support the thermocouple, and a pair of left and right locking grooves on both outsides of the groove, and an elastic groove extending between the two locking grooves. A holding device for a thermocouple, in which the thermocouple is held by a locking pin, wherein the locking pin is formed into a coil-shaped outer circumference surrounding the thermocouple at an intermediate portion of its length.