JPS59189242A - Smoke exhauster - Google Patents

Abstract

PURPOSE:To provide a smoke exhauster, which automatically enables to flush the underside of a smoke guide plate, the neighborhood of a suction port, and the wall surface ranging from the suction port to the rear end of a range. CONSTITUTION:When the flushing of the fatts and oils deposited onto the inner wall of a smoke exhauster main body 3 and onto the underside of a smoke guide plate 11 is intended, an exhaust fan is stopped and a hot water supply pump is put into operation so as to spray water containing detergent from spray nozzles 8a and 8b in order to flush the respective stained surfaces by disengaging a hook 13 so as to lower the smoke guide plate 11 in order to cover a suction port 4 and a recess 15 and then to engage the hook 13. The water for flushing is collected through small holes 17a, 17b, and 17c to a drain pipe 9, resulting in being discharged outside the smoke exhauster main body 3.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a smoke evacuation device used in a place where a smoke containing a large amount of oil and fat is generated, such as a range in a commercial kitchen.

Conventional structure and problems Conventionally, this type of exhaust system bends the direction of the sucked air with a baffle plate, causing the oil and fat in the air to collide and adhere to the inner wall surface of the smoke exhaust system body due to inertial force. It is known what can be removed. Exhaust 21.-A so-called grease extractor, which cleans the smoke device by spraying hot water containing detergent from a spray nozzle installed inside, is effective for removing the oil and fat remaining inside the smoke device. The grease extractor always automatically cleans the fat and oil that adheres to the inside of the smoke evacuation device, so if you accidentally overheat a pot of oil in the microwave and ignite it, the flames will ignite the smoke evacuation device itself. There is no chance that the oil accumulated inside will ignite and the fire will spread to other areas through the duct. However, with this conventional structure, it is not possible to automatically clean the bottom surface of the smoke guide plate, which is prone to oil and dirt, the area near the oil smoke inlet, and the wall surface from the inlet to the rear end of the range. However, there is a problem in that it is difficult to take care of.

OBJECTS OF THE INVENTION The present invention obviates these conventional drawbacks,
To provide a smoke evacuation device that can instantly and automatically clean the lower surface of a smoke guide plate, the vicinity of an inlet, and the wall surface from the inlet to the rear end of the microwave oven.

Structure of the Invention 3t., P. The smoke evacuation device of the present invention has a concave wall surface below the suction port of the main body of the smoke evacuation device, a spray nozzle is installed in this concave surface, and a spray nozzle is installed at a position above the suction port. A foldable smoke guide plate is provided to cover the suction port and recessed surface during cleaning.With the smoke guide plate folded, hot water containing detergent is sprayed from a spray nozzle to guide the smoke. The bottom surface of the board, the vicinity of the suction port, and the wall surface of the trench at the rear end of the range from the suction port can be cleaned.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1st
In the figure and FIG. 2, 1 is a microwave oven placed on a stand 2;
Reference numeral 3 designates the main body of the smoke evacuation device installed in an upright state in contact with the rear end of the microwave oven 1, 4 the suction port for oily smoke provided in the middle of the main body 3 of the smoke evacuation device, 5 the exhaust port, and this exhaust port 6 connected to the duct. It is connected to the exhaust fan, but we will omit it here. Inside the smoke exhaust device main body 3, there are a plurality of baffles 6a, eb, ec.
A hot water supply pipe 7 connected to a hot water supply pump is installed, and a plurality of spray nozzles 8a are installed on the hot water supply pipe 7. Reference numeral 9 denotes a water control pipe connected to the bottom of the smoke evacuation device main body 3; There is a smoke guide plate 11 below. The smoke guide plate 11 has a hinge 12
It is movably housed in the main body 3 of the smoke evacuation device.

Hooks 13 are provided at the left and right ends of the smoke guide plate 11, and the hooks 13 are adapted to be engaged with pins 14 provided on the stand 1o. When the hook 13 is locked, the smoke guide plate 1
1 is located above and opposite to range 1.

The wall surface of the smoke evacuation device main body 3 below the suction port 4 has a recess 16, and the recess 16 has multiple spray nozzles 8b connected to the hot water supply pipe 7. 16 is a drain provided between the smoke exhaust device main body 3 and the range 1; 17a;
Reference numerals 17b and 17c are small holes through which cleaning water passes, and are provided in the inner wall of the smoke evacuation device main body 3, the recessed surface 16, and the wall surface of the drain groove 16, respectively. 18 connects the smoke guide plate 11 to the hinge 12
This is the hole that engages the hook 13 when folded through the 1]2 hole, and when the hook 13 is engaged here, the exhaust fan stops and the hot water pump starts operating. Although it is a control circuit, the water supply pump and control circuit are omitted here. When the smoke guide plate 11 is folded, the inlet 4 and the recessed surface 16 are covered.

Next, the operation of the above configuration will be explained. When cooking is performed in the microwave oven 1, air containing generated fats and oils is drawn by an exhaust fan and enters the exhaust device main body 3 through the suction port 4.

At this time, some of the oils and fats adhere to the lower surface of the smoke guide plate 11, around the suction port 4, and on the concave surface 16, thereby staining them.

The air that has entered the exhaust device main body 3 passes through the baffle 6a.

Although the direction is bent by sb and ec, the fats and oils are particles of several microns to several hundred microns, and their inertial force collides with and adheres to the inner wall surface of the smoke exhaust device main body 3. The air from which most of the oil and fat content has been removed is discharged from the exhaust port 5 to the outside through the duct that follows it. When cleaning oil and fat accumulated on the inner wall of the smoke evacuation device main body 3 and the lower surface of the smoke guide plate 11, remove the hook 13, lower the smoke guide plate 11, cover the suction port 4 and the recessed surface 16, and remove the hook 1.
3 is locked in the hole 18, the exhaust fan stops and the hot water supply pump operates, and hot water containing detergent is sprayed into the spray nozzle 8a.
It is sprayed from 8b to clean each dirty surface. The cleaning water is collected in the drain pipe 9 through the small holes 17a, 17b, and 17c, and is discharged to the outside of the smoke evacuation device main body 3.

Effects of the Invention As described above, the smoke evacuation device of the present invention is such that the smoke guide plate can be folded so as to cover the suction port and the recessed surface below the suction port, and the smoke guide plate, the vicinity of the suction port, and the recessed surface can be folded. It can be cleaned with a spray nozzle installed on the surface.
The underside, inlet, and recessed surfaces of the smoke guide plate are automatically cleaned.
It can be kept clean at all times and is extremely useful in practice.

Unfortunately, in the past, the wall that was in contact with the rear end of the microwave was flat.
A microwave oven close to a wall is difficult to use because a large pot hits the wall, but in the present invention, the wall is a concave surface, so the pot does not hit the wall, making it easy to use and practically useful.

[Brief explanation of the drawing]

Figure 1 shows an oblique view of a smoke evacuation system showing one embodiment of the present invention.
2 is a partial sectional view of the same. 1... Range, 3... Smoke exhaust device body, 4...
...Suction port, 8b inside...Spray nozzle, 11...River...
Smoke guide plate, 12... Hinge, 15... Concave surface. Name of agent: Patent attorney Toshio Nakao (1st person)
figure

Claims (1)

[Claims] The lower wall surface of the suction port of the smoke evacuation device installed upright at the rear of the oven is a recessed surface, and a plurality of spray nozzles connected to the hot water pipe are installed in this recessed surface, and the upper position of the suction port is used for cleaning. A smoke evacuation device including a foldable smoke guiding plate to cover the suction port and the recessed surface.