JPS6218920Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a hot air heater, particularly an open type hot air heater. As conventional hot air heaters of this type have become more compact, it has become difficult to maintain the height of the main body, and as a result, the introduction of secondary air, which was previously achieved through natural draft, has been replaced by a hot air blower. This causes a positive pressure inside the combustion chamber, causing hot air to leak into the chamber, resulting in various problems such as overheating of the main body. In view of these conventional drawbacks, this invention has a simple structure that reliably prevents hot air from leaking and also improves assembly workability. Hereinafter, one embodiment of the hot air heater according to this invention will be described in detail with reference to the accompanying drawings. The drawing shows the general configuration of this embodiment. In this drawing, reference numeral 1 denotes a case body, 2 a warm air outlet formed at the upper front of the main body 1 , and 3
4 is a front panel of the main body 1, and 5 is a stand for holding the main body 1 . Reference numeral 6 denotes a combustion box fixed within the case body 1 , and a fitting hole 7 is formed in the center of the bottom of the combustion box.
8 is a combustion tube fixed to the upper outer circumference of this fitting hole 7, and 8a is formed around the lower end of this combustion tube 8 to introduce a part of the compressed air from the warm air blower 3 into the cylinder. Next is the air inlet. Further, reference numeral 9 denotes a burner section consisting of a vaporizing chamber 10 and a burner head 11, and 12 surrounds the outer periphery of this burner section 9 , and includes a horizontal flange 12a extending over the entire circumference at the upper end opening, and an outer periphery of this flange. The heat insulating tubes 13, each having a rising wall portion 12b bent upward, are fitted from above the fitting hole 7 so as to surround the outer periphery of the burner head 11, and the lower end flange 13a is connected to the heat insulating tube. 12 is a heat shield tube fixed on the flange 12a; 14 is this heat shield tube 1;
3, a sealing material such as elastic glass wool interposed between the lower end flange 13a and the lower end of its outer periphery, as well as the lower surface around the fitting hole 7 and the rising wall 12b; 15, the burner section 9 ; This is a fixed leg that fixes the lower part of 12 on the pedestal 5. However, to assemble the example configuration of the lever,
First, a combustion box 6 having a hot air outlet 2 , a hot air blower 3, and a combustion tube 8 is fixed to the case body 1, and on the other hand, a heat shield tube with a burner part 9 and a sealing material 14 arranged on the stand 5. 13 and fixing legs 15 in the same way, the heat insulating cylinder 12 is fixed, and then,
The case body 1 is attached to the assembly on the stand 5 side.
By this operation, the upper part of the heat shield cylinder 13 on the mounting stand 5 side is tightly fitted into the fitting hole 7 formed in the combustion box 6 on the case body 1 side. At the same time, the sealing material 14 completely seals the fitting hole 7, and the combustion box 6 becomes under positive pressure due to the air blown from the hot air blower 3.
It is possible to completely block hot air from leaking. As detailed above, with this invention, the entire assembly can be assembled with an extremely simple operation of simply fitting the case body side assembly onto the stand side assembly, and this assembly operation requires no particularly complicated installation. , or screws are not required at all, which makes assembly work easier. Furthermore, as the sealing material performs the sealing action at the same time as this assembly operation, hot air leakage into the vessel is completely eliminated. In addition to being able to prevent this, the overall structure is simple and can be implemented easily and inexpensively.

[Brief explanation of the drawing]

The drawing is a schematic diagram showing an embodiment of the hot air heater according to the invention. 1 ...Case body, 2...Hot air outlet, 3...
...Hot air blower, 5... Stand, 6... Combustion box, 7...
...Fitting hole, 8...Combustion tube, 9 ...Burner part, 10
... vaporization chamber, 11 ... burner head, 12 ... heat insulation cylinder, 12a ... flange section, 12b ... rising wall section,
13... Heat shield tube, 13a... Flange portion, 14... Seal material, 15... Fixed leg.

Claims (1)

[Scope of utility model registration request] A combustion box with a fitting hole and a combustion tube on the upper part of the outer periphery is fixed in the case body provided with a hot air outlet and a hot air blower to form a case body side assembly, and a burner part, this burner part A heat insulating cylinder that surrounds the outer periphery of the lower part of the cylinder and has a horizontal collar part at the upper end opening and a rising wall part on the outer periphery of the heat insulating cylinder, and a heat insulating cylinder that surrounds the outer periphery of the burner head of the burner part, A heat shield cylinder with a sealing material such as glass wool placed on the lower part of the outer periphery is fixed to a stand to form a stand side assembly, and from above the heat shield cylinder of this stand side assembly, the case body side assembly is A hot air heater characterized in that a combustion box fitting hole is fitted, and the fitting hole portion is sealed with the sealing material by fitting the fitting hole into the heat shield cylinder.