JPH0431474Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to an improvement of a ventilation fan suspended above a range by a chain.

[Conventional technology]

FIG. 3 is a cross-sectional view of a conventional ventilation fan disclosed in, for example, Japanese Utility Model Application No. 59-174550. In the figure, 1 is a wall, 1a is a ceiling, 2 is a duct penetrating this wall, and 3 is a duct This is an outer casing attached to a wall 1 so as to be connected to an indoor cooking range (not shown), and has an inlet 4 in the lower part and an outlet 5 in the upper side wall. 6 is a filter provided laterally to cover the suction port 4; 7 is a blower provided in the outer casing 3; the exhaust gas is collected from the suction port 4 and discharged to the duct 2 via the exhaust chamber 8; are connected like this. 9 is an upper casing attached to the upper front surface of the outer casing 3; 10 is a mounting screw for attaching this upper casing to the outer casing 3; 1;
1 is a front panel that detachably opens and closes the front of the outer casing 3 and the upper casing 9;
It has an upper opening 12 in the upper part facing the upper part, and is fixed to the outer casing 3 by fixing the upper or side part with a hook or the like, and fixing the other end part to the outer casing 3 with a mounting screw 13. 1
4 is an anchor bolt for suspending the outer casing 3; 15 is a tightening nut thereof; and 16 is a mounting screw for attaching the outer casing 3 to the wall 1.

The conventional ventilation fan is configured as described above, and by operating the blower 7, combustion gas, oil smoke, steam, etc. generated from the range are sucked in through the suction port 4.
The air is discharged from the duct 2 to the outside through the air outlet 5 and the exhaust chamber 8. At this time, the filter 6 collects and removes oil contained in oil smoke, etc., so that oil does not adhere to the inside of the outer casing 3.

[Problem that the invention attempts to solve]

In the conventional ventilation fan described above, the anchor bolts 14 are embedded in the wall at the time of installation, and the outer casing 3 is hung from the anchor bolts 14.However, in existing houses, the anchor bolts 14 are not embedded in the wall. There were problems in that it was difficult and construction workability was poor.

This idea was made to solve this problem, and by providing a chain hook hole in the outer casing and suspending the outer casing using the chain and hook, the construction workability was improved without changing the air blowing performance. The purpose is to obtain a good ventilation fan.

[Means for solving problems]

In the ventilation fan according to this invention, a recess is provided in the fixture, and the recess is opposed to the above-mentioned hook hole so as to seal it.

[Effect]

In this invention, the ventilation fan body is attached by a chain, and the hook hole is completely sealed by a fitting to prevent dust from entering.

〔Example〕

Fig. 1 is a sectional view showing an embodiment of this invention, and Fig. 2 is a partial sectional view of the main parts.
Reference numerals 7 and 16 indicate the same or equivalent parts as in the conventional example, and the outer casing 3 is provided with a plurality of hook holes 17 on the upper surface to which chains 49 are attached. The blower 7 includes an electric motor 20 protruding from the outer casing 3, a blade casing 21, and blades 22. Reference numeral 23 denotes a fitting for attaching the electric motor 20 to the outer casing 3, which is installed in the outer casing 3 so as to face the circumferential side of the hook hole 17, and has a recess 18 facing the hook hole 17 to seal it. It is set up. 24 is a motor cover provided at a predetermined interval so that an air passage is formed in the protrusion of the motor 20; 25 is an outer casing 3;
The oil receiver is formed with a recess 26 so as to cover the lower opening of the fan 7 and also serves as the lower wall of the blade casing 21 of the blower 7. The suction port 4 is provided in the part facing the blade 22, and the periphery of the suction port 4 is The side has a predetermined curvature and protrudes downward to form an orifice, and a ring-shaped oil receiving groove 27 is formed on the upper surface of the oil receiving groove 27, and a ring-shaped oil receiving groove 27 is provided in the outer casing 3 at the rear of this oil receiving groove 25. Engagement piece 2 that engages with a coupling hole (not shown)
8 are rotatably provided at a predetermined interval,
A through hole 29 for a mounting screw 13 is provided in the front portion to be screwed into the outer casing 3 and for attaching the oil receiver 25. 30
A filter 37 is provided at the bottom of the oil pan 25 to cover the suction port 4 and is made of aluminum alloy punching metal and has a plurality of 3φ small holes (not shown).A filter 37 is provided at the top of the filter 30. 40 is a partition plate provided between the outer casing 3 and the oil pan 25 and forms a chamber 41 inside; 42 is a stockinette-knit grease filter provided on the rear side wall of the outer casing 3 forming one side of the chamber 41; Facing exit 5, screw 4
3. With the duct connection member fixed, the wind pressure shutter 4
4 is installed internally. A chain 49 has one end hooked to a hook hole 17 on the top surface of the outer casing 3, and the other end hooked to a hook 50 provided on the ceiling.

In the ventilation fan configured as described above, its installation involves fixing the outer casing 3 to the wall 1 with the mounting screws 16, then providing the hook 50 on the ceiling 1a, and
This is done by hooking one end of the chain 49 to the hook hole 17 in the upper part of the outer casing 3, and hooking the other end to the hook 50. By operating the blower, the ventilation fan installed in this manner sucks oil smoke generated from a range (not shown) installed below from the suction port 4 through the filter 30 and the grease filter 37 and into the chamber 41. The air is blown out from the air outlet 5 through the duct 2 and discharged to the outside. At this time, the oil contained in the oil smoke is collected and removed by the filter 30 and the grease filter 37,
Oil is prevented from adhering to the blades 22, blade casing 21, etc. This makes the installation work easier, and since the hook hole 17 is sealed by the recess 18, there is no air leakage from the hook hole 17, and dust etc. from the outside can be removed from the hook hole 17 from the outer casing. It never goes to 3.

[Effect of idea]

As explained above, this idea has a concave part in the fixture and these concave parts face each other so as to seal the hook hole, so the ventilation fan body can be attached with a chain, which is easy to install, and the hook hole is completely closed. Since it is sealed with a fitting, it is effective in preventing dust and the like from entering the outer casing.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an embodiment of this invention, FIG. 2 is a partial sectional view of the same essential parts, and FIG. 3 is a sectional view showing a conventional ventilation fan. In addition, the same reference numerals in each figure indicate the same or equivalent parts, 1a is the ceiling, 3 is the outer casing, 4 is the inlet, 5 is the air outlet, 7 is the blower, 17 is the hook hole, 18 is the recess, and 23 is the recess. 49 is a chain, and 50 is a hook.

Claims (1)

[Scope of utility model registration request] An outer casing having a suction port at the bottom, an air outlet at the side wall, and a hook hole at the top to which a chain hooked to a hook provided on the ceiling or the like is attached, and this outer casing. A blower is provided inside, and a fitting is provided facing the hook hole to attach the blower, a recess is provided in the fitting, and the recess is sealed off to the hook hole. A ventilation fan characterized by facing each other so as to