JPH0533854Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a ceramic ventilation device that is installed on the outdoor side of a ventilation hole opened in a wall of a building for indoor ventilation.

(Prior Art) Conventionally, as a ventilation device installed on the outdoor side of a ventilation hole opened in a wall of a building for indoor ventilation, a ventilator is installed protruding from the outer periphery of one end, as shown in Fig. 4, for example. It is made of metal and consists of a cylinder 2' that is fitted into the ventilation hole 11 of the wall 1 with the flange 21' protruding outdoors, and a hood 3' that is fixedly attached to the flange 21' with screws or the like. Or there are those made of synthetic resin.

(Problem that the invention attempts to solve) However, in such conventional ventilation systems, the hood and cylinder are fixedly attached in advance, so
There were problems in that the hood could not be easily removed for cleaning, etc., causing the hood to become stiff, and in the event that the hood was damaged, it was difficult to replace the hood. Furthermore, since they are made of metal or synthetic resin, they have a problem of insufficient fire resistance and corrosion resistance.

The object of the present invention is to provide a ceramic ventilation system that solves the problems of the conventional art.

(Means for Solving the Problems) In order to solve the above problems, the ceramic ventilation system of the present invention has a flange protruding from the outer periphery of one end that is fitted into a ventilation hole. It consists of a ceramic cylindrical body and a ceramic hood that is removably fitted to the flange.Notches are formed at multiple locations on the periphery of the flange of the cylindrical body, and each notch is formed on the rear surface of the periphery of the flange. The hood is provided with a continuous tapered part in the circumferential direction, and a protrusion corresponding to the notch is integrally formed on the inner side of the peripheral edge of the rear end that is fitted onto the flange. The cylindrical body is configured to slide along the tapered part and be locked to the flange part, and a spring material for holding the cylindrical body is provided between the cylinder body and the inner wall of the ventilation hole, and the spring material is attached to the rear part. The end portion is hooked to the rear end portion of the cylindrical body, the distal end side is inclined toward the inner wall of the ventilation hole, and the distal end portion is in elastic contact with the inner wall.

(Example) The present invention will be described below with reference to the drawings.

In the drawings, reference numeral 1 denotes a wall of a building, in which a ventilation hole 11 of an appropriate size is opened to ventilate the interior of the building.

Reference numeral A denotes the ventilation device of the present invention, which is formed from a cylinder body 2 and a hood 3, each made of ceramic.

The cylinder body 2 has a diameter that can be inserted into the ventilation hole 11,
The shape is cylindrical, rectangular, etc., as appropriate.
A flange 21 is provided protruding from the outer peripheral edge of one end. The outer periphery of the flange 21 has a circular shape as shown in FIG.
...is provided. Generally, the notches 22, 22, . . The shape of the notches 22, 22, . . . is not particularly limited as long as the peripheral edge of the collar portion 21 is concave. Further, on the rear surface of the peripheral edge of the flange 21, that is, on the end surface extending outward from the flange 21 and folded back as shown in FIG. Continuous taper part 2
3, 23... are provided in the circumferential direction. Each of the tapered portions 23, 23, . . . is an inclined surface inclined in the same direction along the circumferential direction of the collar portion 21.

The hood 3 has an opening 31 at the bottom as shown in Fig. 3, and the rear end is cylindrical so that it can be fitted onto the flange 21 of the cylindrical body 2. The hood 3 has notches 22, 23 of the cylindrical body 2 on the inside of the rear end periphery as shown in Figs. 1 and 3.
2 ... corresponding projections 32, 32 ... are provided. Also, the projections 32, 32 ... are
2... and protrudes to an extent that it can be engaged with the peripheral edge of flange portion 21 as shown in FIG.

Therefore, in order to attach the hood 3 to the flange 21 of the cylinder body 2, the notches 22, 22... and the protrusion 32,
32..., and fit the rear end peripheral portion of the hood 3 onto the collar portion 21, and rotate the hood 3 in the direction of the arrow as shown in FIG.
. . slides along the tapered portions 23, 23, . At this time, the notches 22, 22, . . . are covered by the thick portion 33 of the hood 3, as shown in FIG. 1B, and are not visible from the outside.
Furthermore, in order to remove the hood 3, the hood 3 may be rotated in the opposite direction to that described above, the notches 22, 22... and the protrusions 32, 32... may be aligned, and the hood 3 may be removed as is.

The cylindrical body 2 has a flange 21 protruding outdoors and a ventilation hole 1.
The cylindrical body 2 is inserted into the ventilation hole 1.
1, a spring member 4 is interposed between the vent hole 11 and the inner wall of the vent hole 11, as shown in FIG.

(Effects of the invention) As detailed above, the ventilator of the present invention is provided with notches at multiple locations around the periphery of the flange of the cylindrical body, and a tapered part continuous to each notch on the rear surface of the periphery of the flange in the circumferential direction. The hood is provided with a protrusion corresponding to the notch on the inside of the peripheral edge of the rear end which is fitted onto the flange, and the protrusion slides along the tapered part through the notch and engages with the flange. Because it is designed to be stopped,
The hood can be easily attached and detached from the cylindrical body. Therefore, the hood can be easily removed for cleaning or the like, and even if the hood should be damaged, only the hood can be easily replaced.

In addition, since both the cylinder body and the hood are made of ceramic, they can improve fire resistance and corrosion resistance, and the surface can be colored in various colors with pongee, so there is no fading, rust, etc., and it is stain-resistant. Even if it gets stuck, it can be easily washed off. A spring material for holding the cylinder value is hung on the cylinder body, and the spring material is in elastic contact with the inner wall of the ventilation hole, so the cylinder body can be easily held in the ventilation hole, and it is easy to install and remove when cleaning or replacing. becomes easier.

A bayonet joint is composed of a notch, a protrusion, and a tapered part, and since these are integrally formed with the cylinder and the hood, there is no need for a conventional stopper member and the work to attach this member. The number of points does not increase, the manufacturing and assembly process does not take much time, the hood can be easily installed and removed, and the above-mentioned notches, protrusions, and tapered parts can be easily formed integrally with the cylinder body and the hood. Once the connecting portions of the cylinder and the hood are connected, there is an advantage that the connecting function is more effectively exerted, since it is difficult to accidentally come off due to the frictional resistance of the surface. In addition, since the hood is made of ceramic, it creates a sense of unity with the wall, unlike metal ones, and has the advantage of not damaging the appearance of the wall of the building. You can easily color it to match the walls, making it even bigger.

[Brief explanation of the drawing]

Fig. 1 shows an embodiment of the ventilator of the present invention, A is a front view, B is a cross-sectional view taken along the line C, C is a rear view, and Fig. 2 is an embodiment of the cylindrical body of the ventilator of the present invention. A is a front view, B is a side view, Fig. 3 shows an embodiment of the hood in the ventilator of the present invention, A is a front view, B is a sectional view taken along the - line, and Fig. 4 is an example of a conventional ventilator. In the figure, A is a sectional view and B is a front view. DESCRIPTION OF SYMBOLS 1... Wall body, 11... Ventilation hole, A... Ventilation device, 2... Cylindrical body, 21... Flange part, 22... Notch part, 23... Taper part, 3... Hood, 31...
...Opening, 32...Protrusion, 33...Thick wall portion, 4...
...Spring material.

Claims (1)

[Scope of Claim for Utility Model Registration] In a ventilation system installed on the outdoor side of a ventilation hole 11 opened in a wall 1 of a building, a flange 21 protruding from the outer periphery of one end is protruded outdoors for ventilation. It consists of a ceramic cylindrical body 2 that is fitted into the hole 11 and a ceramic hood 3 that is removably fitted to the flange 21, and the cylindrical body 2 has cutouts 2 at multiple locations on the periphery of the flange 21.
2, 22, . Protrusions 32, 32 corresponding to the notches 22, 22, .
2, 22 along the tapered parts 23, 23... and is locked to the flange part 21. A holding spring member 4 is provided, the rear end of the spring member 4 is attached to the rear end of the cylinder 2, the front end side is inclined toward the inner wall of the ventilation hole 11, and the front end is in elastic contact with the inner wall. Ceramic ventilation system characterized by: