JPS6143168Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a kitchen hood fan, and relates to the provision of a joint part that prevents air from leaking from a smoke collection hood and is easy to attach and detach after installation.

Conventional kitchen hood fans have a joint device that partitions the inside of the smoke hood from an exhaust port provided on the outside of the smoke collection hood wall, and a joint device that collects smoke to the discharge port of the joint device. An exhaust duct was inserted into a joint attached to the outside of the hood to exhaust air.

Therefore, the pressure inside the joint device increases during exhaust, which causes air leakage from the joints and gaps between the parts that make up the smoke collection hood.In addition, during maintenance inspections and repairs after installation, the pressure between the exhaust duct and the joint increases. The main body of the kitchen hood fan and the duct cannot be separated because they are fixed irremovably with sealing material or taping, so it is necessary to destroy part of the building and remove the main body for repairs. There was a problem.

The purpose of the present invention is to eliminate the above-mentioned drawbacks by incorporating a joint device separate from the smoke collection hood into the smoke collection hood, and providing a removable joint on the outer surface of the wall.
To provide a kitchen hood fan with no air leakage and excellent maintainability.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings. In the figure, 1 is a smoke collection hood of a kitchen hood fan, which is largely formed by a hood part 1 and a front cover 2, and an auxiliary intake port 2' is provided at the top of the front cover 2, and a space between the hood part 1 and the front cover 2. is provided with an inclined plate 3 for guiding the exhaust flow, a grease filter G, and a lighting device 4. The hood part 1 and the front cover 2 are configured to be detachable using a knob 5. An exhaust port is provided on the back wall 1b of the hood portion 1. Between the grease filter G and the rear wall of the hood part 1, there is a blower F consisting of a fan motor (not shown) and a blower guide Fg. , one side wall of the hood part 1, for example, the rear wall 1
An exhaust box 7 having an exhaust port 7' for deflecting air in the b direction has a convex portion Fg of the blower guide Fg in a concave portion 7 of a hook 7 of the exhaust box 7 provided at the discharge portion of the blower guide Fg. Insert it, and temporarily fix one side into the screw hole Fg' of the blower guide Fg with the screw 11b.

Based on the above configuration, the procedure for attaching the joint portion will now be described. First, an airtight sealing material 17 is applied to the exhaust duct 14 that is piped into the building, and the outer joint 12 having the wind pressure shutter 12s is inserted therein. A packing 12p is attached to the back side of the outer joint 12.

The outer joint 12 is provided with a handle 18 to facilitate pulling it into the main body.

Next, connect outer joint 1 from hole 7A of exhaust box 7 .
2 until it touches the rear wall 1b, the supporting metal fitting 8 is bridged over the exhaust port 7' of the exhaust box 7 , and is fixed with screws 9.

Next, slightly loosen the screw 11b in the screw hole Fg', insert the notch 10'B on one side of the cover 10, and tighten it. The other notch 10'A is the screw 11
A is screwed into the screw hole 7'' of the exhaust box 7 and fixed. 7p shows the packing attached to the back side of the exhaust box 7 .

As mentioned above, since the exhaust box 7 connected to the blower F has the exhaust port 7' and the hole 7A,
By inserting your hand through the hole 7A, the external exhaust duct 14 can be attached to the exhaust box 7 using the outer joint 12, the support fitting 8, a plurality of screws, and the like.
After installation, attach the cover 10 to the screws 11A and 11b.
By installing it to exhaust box 7 with
A is closed and the installation is completed as shown in FIG.

If you wish to remove it, remove the screws in the opposite manner as described above to remove the exhaust box 7 and blower F from the exhaust duct 14, and then remove the smoke collection hood.
1 can also be removed.

As mentioned above, the present invention includes the outer joint 12 that is inserted and fixed airtightly into the exhaust duct 14, the handle 18 that is extended to this outer joint 12, and the outer joint 1.
The packing 12p is attached to the outer circumference of the hood 1 on the outer surface of the hood 1, the hole 7A made in the exhaust box 7 , and the side wall 12p attached to the inner surface of the rear wall 1b of the exhaust box 7 . Exhaust port 7'
A packing 7P is attached to the surface of the outer circumference of the exhaust port 7' that contacts the inner surface of the rear wall 1b, and a support fitting 8 is passed across and abuts against the periphery of the exhaust port 7' of the exhaust box. The handle 1 of the joint 12
8, and a screw 9 for attaching the exhaust box 7 and the outer joint 12 to the wall of the hood part 1 so as to sandwich them, and a screw 11 in the hole 7A of the exhaust box.
The exhaust box 7 and the exhaust duct 14 are provided with a cover 10 that can be detachably attached by A and 11b, and screws that detachably attach the discharge part of the blower F and the exhaust box 7 . It is possible to attach and detach the exhaust duct 14 and the blower F using screws, and the exhaust box 7 and the exhaust duct 14 can be easily attached and detached by using the support fittings 8.
By attaching the cover 10 after the exhaust box is installed, the original joint function of the exhaust box can be satisfied, and the security function can be further enhanced by using packing.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is an external perspective view, FIG. 2 is an exploded perspective view, and FIG. 3 is a cross-sectional view showing an installed state. 1 ...Smoke collection hood, 1...Hood part, 2...Front cover, F...Blower, 1b...Rear wall, 7 ...
...Exhaust box, 7A...hole, 7'...exhaust port,
7P...Packing, 8...Supporting metal fittings, 10...
Cover, 12... Outer joint, 14... Exhaust duct,
9, 11A, 11b...screws.

Claims (1)

[Scope of claim for utility model registration] A smoke collection hood 1 consisting of a hood part 1 and a front cover 2 , and a blower F disposed inside this hood part 1.
and an exhaust box 7 provided at the discharge part of the blower F and attached to the inside of the back wall 1b of the hood 1, and the back wall 1 of the hood 1.
(b) In a device having an exhaust duct 14 that is attached to the outer surface and communicates with the exhaust box 7 , an outer joint 12 is inserted and fixed airtightly into the exhaust duct 14, and a holder extended to this outer joint 12. The hand 18 and the hood part 1 are also connected to the outer periphery of the outer joint 12.
Packing 12P was pasted before hitting the outer surface of the
A hole 7A formed in the exhaust box 7 , an exhaust port 7 ' formed in the side wall corresponding to the inner surface of the rear wall 1b of the exhaust box 7, and an exhaust port 7' formed on the outer periphery of the exhaust port 7' to the inner surface of the rear wall 1b. The packing 7P attached to the surface that corresponds to the exhaust port 7' of the exhaust box
The handle 18 of the outer joint 12 is screwed through the support fitting 8 which is brought into contact with the periphery of the exhaust box.
7 and the outer joint 12 to the wall of the hood part 1 so as to be clamped thereto, a cover 10 which is removably attached to the hole 7A of the exhaust box with screws 11A and 11b, and the blower F. A kitchen hood fan characterized by having a screw for detachably attaching the discharge part and the exhaust box 7 .