Duct for changing the intake position of the toilet ventilation fan

Abstract

To provide a duct for changing the intake position of a toilet ventilation fan for efficiently removing odors generated in a toilet room. [Solution] A cover is installed to cover an existing or newly installed ventilation fan, and a joint is provided on the bottom or side that can be connected to a pre-made air conditioner piping cover. This allows odors to be sucked directly from under the toilet seat and exhausted without passing near the face. The structure is easily detachable, and does not interfere with filter cleaning or maintenance work. A prototype demonstrated a reduction of approximately 70-80% in odors and a reduction in the retention time of residual odors from the conventional 15-20 minutes to approximately 5 minutes. This device improves comfort and hygiene in homes, commercial facilities, accommodation facilities, medical and nursing care facilities, and even temporary toilets in the event of a disaster. Conventional ventilation fans are installed on the upper wall or ceiling, causing odors to pass near the user's face, causing discomfort.

Description

[Technical Field]

[0001] This device is for changing the position of the ventilation fan intake to remove odors in the toilet room. This relates to a mounting structure for the above. For existing ceiling or wall ventilation fans, this is a fan that draws air directly from around the toilet seat. A duct with a cover can be retrofitted to prevent odors from passing near the user's face. The cover is detachable, so it does not interfere with cleaning the fan body or blades. It also has excellent workability and airtightness, and is equipped with a connection part for duct materials from existing manufacturers. Contributes to improving the comfort of home and commercial toilets. [Background technology]

[0002] Conventional toilet ventilation fans are generally installed on the upper part of the wall or on the ceiling. The odor passes near the user's face as it is sucked from the toilet bowl to the upper part of the room. There was a problem that the air remained in the room for a long time, reducing comfort. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Jitsuzenhei 02-054876 Summary of the Invention [Problem to be solved by the invention]

[0004] The odor generated when using the toilet is absorbed from the toilet bowl to the upper part of the room. It passes near the face, causing discomfort not only to the user but also to subsequent users. There was a problem. In addition, products with deodorizing functions on the toilet seat are also becoming popular, but deodorizing using catalysts, etc. It is not possible to completely remove the odor, and the remaining odor still passes near the face. There wasn't. [Means for solving the problem]

[0005] By relocating the air intake below the toilet seat, odors are quickly removed near the source. Improve the comfort of the toilet room and the previous user's memory in the shared toilet. To quickly reduce the unpleasant feeling caused by residual odor.

[0006] Furthermore, the cover that covers the existing ventilation fan can be easily removed and attached, It does not interfere with cleaning of the ventilation fan filter or main body, ensuring maintainability.

[0007] This utility model is a device that adds an intake port to an existing ventilation fan installed on a wall or ceiling. Install a removable cover that can be moved from the top of the room to below the toilet seat. This relates to the mounting structure. The structure consists of a base part that is attached to an existing ventilation fan. It consists of an easily removable cover, and the duct part is a commercially available indoor piping cover for air conditioners. (Example: MJ joint, Slim Duct MD851 manufactured by Inaba Denko Co., Ltd.) etc. can be connected. [Effects of the Invention]

[0008] The prototype was made from acrylic board and two different shapes were created, one for the wall and one for the ceiling. As a result, odor reduction was perceived as 70 to 80 percent in all shapes. In addition, the odor that remains after use will last for about 15 to 20 minutes when not installed. The time it took to leave the toilet is reduced to 0 to 5 minutes when this device is installed. I confirmed this intuitively. In addition, when commercializing the product, we will measure the technical effectiveness and quantitatively evaluate it at the manufacturer. It is desirable to do so. [Brief explanation of the drawings]

[0009] [Figure 1] Wall-mounted type structural diagram: Base plate section [Figure 2] Wall-mounted type structural drawing: Cover [Figure 3] Wall-mounted type structure diagram: Cover operation explanation diagram [Figure 4] Ceiling-mounted structural diagram: Base plate section [Figure 5] Ceiling-mounted type structural drawing: Cover part [Figure 6] Wall-mounted installation image: Prototype installation situation 1 (reference material) [Figure 7] Wall-mounted installation image: Prototype installation situation 2 (reference material) [Figure 8] Ceiling-mounted installation image: Prototype installation situation 3 (reference material) [Figure 9] Ceiling-mounted installation image: Prototype installation situation 4 (reference material) DETAILED DESCRIPTION OF THE INVENTION

[0010] The base plate part A shown in Figure 1 is designed to accommodate different sizes of existing ventilation fans. It has an L-shaped design that fits along the bottom and right sides. The hinges have built-in springs that compress to fit tightly against the wall when the cover is installed. Equipped with structural plate B. Existing ventilation fan (Panasonic FY-08PFL9D (prototype)) Attach it to the wall along the bottom right corner of the By tilting the upper right outer side of the base plate by about 6 degrees, When cover part D (see Figure 2) is closed, it can be joined flatly with the lower duct joint. It becomes a structure. The cover mounting plate B is rotatably mounted via a spring-type connection C, The cover closes at approximately -10° when unloaded, and can be rotated up to approximately 30°. It can be opened and closed easily without the need for tools. The top of plate B is equipped with a protruding structure to prevent it from falling off, and the recessed part of the insertion part of cover part D The engagement prevents the connector from falling off. This improves workability during maintenance and inspection, and improves the connection and airtightness with the duct. It can be secured.

[0011] The cover part D shown in FIG. 2 has a mounting plate receiving part E on the inside of the right side surface, and It has a box-shaped shape that can be attached and detached by inserting it into the cover mounting plate B. The receiving part E has There is a recess that fits into the protrusion of B to prevent it from falling off. Sponge tape (approximately 1mm thick) is attached around the periphery. The side is angled, and when closed, it is joined flat to the duct joint G. . The duct connection part G is integrally formed on the underside of the cover, and is compatible with Inaba Denki Sangyo's slim duct for indoor use. Compatible with the MJ joint (MD851) and MJ joint (MJ-85). It can be easily attached and detached without requiring any additional wiring, ensuring ease of maintenance and inspection and connectivity with existing equipment.

[0012] Figure 3 is an explanatory diagram of the wall-mounted cover operation. By making the top of the cover slanted, This shows the structure in which the duct is joined to the duct joint G in a flat manner when closed.

[0013] The base plate part I shown in Figure 4 is fixed with screws around the part that houses the existing ventilation fan. The side H covers all four sides, and a cover M shown in Figure 5 is attached from the bottom of one side. The side H has a rail J for inserting the cover M and a fall prevention Equipped with claws. Considering the ease of attaching and detaching the ventilation fan cover, it is installed with a gap of approximately 5 mm above and below. In the prototype, some of the corners are angled to take into account the flow of intake air. A sponge packing tape K is attached to the cover part M to ensure airtightness when it is attached.

[0014] The cover part M shown in Figure 5 is made of transparent acrylic and fits on one side to the base plate H. Equipped with a side plate. Rail J on the base plate slides from the right side. It has a structure that can be inserted and has a protruding claw to prevent it from falling off. This makes it easy to perform maintenance and inspections. It can be opened, improving workability while also ensuring connection to the duct and airtightness. [Example]

[0015] Figure 6 shows an image of a wall-mounted installation, with the base plate part A installed and the cover part D installed. The installation position of the insertion part E and the opening and closing operation of the cover installation plate B are shown.

[0016] Figure 7 shows an image of a wall-mounted installation, showing the change in position due to the relocation of the intake port.

[0017] Figure 8 shows an image of a ceiling-mounted installation, including the installation of the base plate and cover. The image and the anti-fall stopper structure are shown.

[0018] Figure 9 shows an image of a ceiling-mounted installation, and shows the relocation of the intake port after installation. [Industrial Applicability]

[0019] This device is suitable for use in hotels, inns, and other accommodation facilities, hospitals, nursing homes, and other medical facilities. This can contribute to improving the comfort of the toilet room. In addition, improving the hygienic environment by reducing odors It also helps prevent infectious diseases. It is also expected to become widespread in ordinary households. In addition, temporary toilets at large-scale disaster recovery sites are often limited in number and many victims are forced to use them. When used for a short period of time, it helps to reduce psychological stress.

Claims

1. A duct that is retrofitted and connected to a ventilation fan installed on the wall or ceiling of a toilet, The duct has a structure that changes the ventilation fan intake from the top of the toilet room to below the toilet seat. This allows odors to be exhausted without passing through the user's face, providing a comfortable environment. A toilet ventilation fan intake position change duct that provides a suitable environment for use.

2. 2. The duct according to claim 1, wherein the duct is connectable to an intake port of a ventilation fan. The device is characterized in that it is provided with a cover member, and the cover member has a detachable structure. Duct for changing the intake position of the toilet ventilation fan.

3. 3. The cover member according to claim 2, wherein the cover member is easily detachable or slideable. The device is characterized by being equipped with a mechanism that allows opening, closing, or detachment without using tools. Duct for changing the intake position of the toilet ventilation fan.

4. The duct according to any one of claims 1 to 3, wherein the duct is a commercially available air conditioner duct. Compatible with piping covers (Inaba Denko MJ Joint, Slim Duct MD851, etc.) A toilet ventilation fan intake position change duct characterized by having a connection part having the following.

5. The duct according to any one of claims 1 to 4, wherein the duct is a wall-mounted type or A toilet ventilation fan that can be applied to any ceiling-mounted ventilation fan Duct for changing intake position.

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