JPH045941Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The attached ventilator according to the present invention is mainly used for ventilating rooms in buildings and apartments.

[Prior Art] A ventilator for ventilation has recently been installed in rooms in buildings and condominiums, but there is a drawback that when cleaning the internal parts of the ventilator, it is troublesome to remove and install the parts.

In addition, most of the internal parts are installed and removed from outside, making it difficult for housewives and ordinary people.

[Purpose of the present invention] The present invention allows internal parts to be installed and removed with a single touch, can be done from indoors, can be easily used even by housewives, and is equipped with a damper mechanism.
It is now possible to provide an attached ventilator with a damper that automatically closes in the event of a fire.

[Structure of the present invention] The main structure of the mounting aerator according to the present invention is that a plurality of guide pins protruding into the outer cylinder are provided on the same circumferential line at appropriate positions of a circular outer cylinder having an outward flange on the front edge. A shutter plate having ventilation holes corresponding to the ventilation holes in the front plate is firmly fitted to the back side of the front plate of the inner cylinder having a front plate with air holes, onto a shaft of a knob passing through the center of the front plate, By rotating the shutter plate with the knob, the shutter plate opens and closes the ventilation hole on the front plate of the inner cylinder, and from the rear edge of the inner cylinder, the guide slot corresponding to the guide pin of the outer cylinder is inserted into the circle of the inner cylinder. The guide slot is deflected at a certain angle with respect to the circumferential direction, and this guide slot engages with the guide pin of the outer cylinder so that the inner cylinder can be detachably attached to the outer cylinder. A damper cylindrical body is provided, and a pair of damper blades are attached to a support shaft provided over one diameter of the damper body by means of a spring, and one of the damper blades is attached with a spring. , a bimetallic base whose bent portion separates from the other damper blade when the temperature rises abnormally is installed, and this bimetal holds the damper blade so as to open the rear plate opening of the damper cylinder; It is said that the blade had a finger hook. .

[Example] An example of the present invention will be described below with reference to a specific example shown in the accompanying drawings.

Reference numeral 1 denotes an outer cylinder, which has an outward flange 2 formed on its front edge, and guide pins protruding inward at three equally spaced locations on the same circumference at the center in the front-rear direction of the outer cylinder. 3 is provided.

4 is an inner cylinder having a front plate 5, and five arrow-shaped ventilation holes 6 are formed in the front plate 5.

7 is a shutter plate, which is formed with an arrow-shaped ventilation hole 8 like the front plate, and is fixed by caulking or the like to the shaft 10 of a knob 9 rotatably inserted into the center hole of the front plate of the inner cylinder. Then, by rotating the shutter plate 7 by 36 degrees using the knob 9, it is aligned with the ventilation hole 6 of the shutter plate, and by turning it in the opposite direction by 36 degrees, the ventilation hole 6 of the front plate is blocked by the shutter plate. The reference numeral 11 in the figure is a bending stopper for regulating the rotation angle of the shutter plate 7, and the reference numeral 12 is a notch for engaging the stopper.

13 is a rope frame on which an insect repellent rope 14 is stretched;
The rope 14 is fitted inward to the stopper 15 position, and the rope 14 is inserted between the inward flange of the frame 13 and the holding frame 1.
6, and the holding frame 16 is spot welded to the mesh frame at several points.

Guide slots 17 are formed at three locations on the rear edge of the inner cylinder 4 with cuts that are moderately oblique to the circumferential direction.
the entrance of the guide slot 17 to the outer cylinder 1.
When the inner cylinder 4 is turned as it is after being fitted onto the pin 3, the inner cylinder is guided by the pin 3, spirally retreats, and is installed in the outer cylinder 1.

Note that the guide slot 17 is formed so that the end 17a (the side opposite to the entrance) faces in the circumferential direction, so that the end of the guide slot 17, once fitted into the pin 3, is prevented from arbitrarily detaching from the pin 3. be.

In addition, the reference numeral 18 in the drawings indicates a leaf spring for mounting which is fixed at three locations on the outer cylinder with rivets 19.

Further, at the rear of the outer cylinder 1, a damper cylinder 2 is provided, which has left and right openings 25a and 25b in the rear plate 20a.
0 is firmly fitted using the rivets 19.

A support shaft 21 is attached to the damper cylindrical body 20 so as to pass through it across the diameter in the vertical direction.
1, two semicircular damper blades 22 on the left and right
Hinge tube portion 2 formed on the straight string portions of a and 22b
3a, 23b are loosely fitted, respectively, and the damper blades 22a, 22b are rotatably attached to the support shaft 21, and the left and right damper blades 22a,
At 22b, both ends 24 of the coil spring 24 attached to the support shaft 21 tend to rebound outward from each other.
a and 24b apply a rotational force in the direction of the two-dot chain arrow in FIG.

The base of a bimetal 26 is fixed to the free end of one damper blade 22a with a rivet 27, and the bent portion 26a of the other end of the bimetal is engaged with the free end edge of the other damper blade 22b. Yes, by doing this, the left and right damper blades 2
2a and 22b are held by a bimetal so as to resist the rotational force of the spring 24 and open the opening of the damper cylinder as shown in FIG.

However, when the surrounding temperature of the bimetal exceeds the set temperature, the bent portion 26a bends toward the damper blade 22 as shown by the double-dot chain in FIG.
The damper blades 22a, 22b are detached from the free end of the spring 24.
The damper cylinder is rotated to close the openings 25a and 25b at the rear of the damper cylinder, respectively.

Furthermore, a finger hook 28 having a U-shaped planar shape is attached to the inner surface of the right damper blade 22b to which the bimetal is not fixed using a rivet 29, and the usage of this finger hook 28 will be described later.

The aerator of the present invention described above has the following features as shown in Fig. 3.
Ventilation hole B made in wall A of building such as apartment building
It is used by fitting the outer cylinder 1 inside from the indoor side.

When ventilation is required, by turning the shutter plate 7 with the knob 9 and aligning the ventilation hole 8 of the shutter plate 7 with the ventilation hole 6 of the inner cylinder front plate, the indoor and outdoor air can be conducted.

If ventilation is not required, pinch the shutter plate 7 and press 9.
Then, the shutter plate 7 can be used to close the ventilation hole 6 in the front plate of the inner cylinder.

When cleaning the front plate, shutter plate, and insect screen of the inner cylinder, grasp the front plate of the inner cylinder by hooking your fingers on the ventilation hole, and turn the inner cylinder 4 in the direction of the cut in the guide slot 17.

As a result, the inner cylinder is guided by the guide pin 3 through the guide slot 17 and moved to the left in FIG. 3, and is removed from the outer cylinder 1.

After cleaning the shutter and screen on the inner cylinder, insert the inner cylinder 4 into the outer cylinder 1 from the indoor side (left side in Figure 3), fit the entrance of the guide slot 17 into the pin 3 of the outer cylinder,
Turn the inner cylinder in the opposite direction from when you removed it.

As a result, the inner cylinder is moved toward the back of the outer cylinder with the guide slot guided by the pin, and the end 17a of the guide slot is fitted into the pin and installed into the outer cylinder.

Further, the ventilator of the present invention is provided with a damper mechanism, and normally the damper blades 22a, 22b open the rear openings 25a, 25b of the damper cylinder body 20, but if the temperature rises abnormally due to a fire etc. The bent portion 26a of the bimetal 26 comes off the free end of one of the damper blades 22b, and the left and right damper blades 22a, 22b are released from the spring 2.
4 to automatically close the openings 25a and 25b at the rear of the damper cylinder.

To open the closed damper blade, the inner cylinder 4 is removed from the outer cylinder 1 in the manner described above, and the free end of the damper blade is attached to the rear plate 20a of the damper cylinder
It is not easy to do this because it is crimped by the force of the spring, but in the present invention one of the damper blades 22b is provided with a finger hook piece 28.
2b toward you against the spring force to open one opening 25b of the rear plate of the damper cylinder body.

Next, insert your hand into the opening 25b as shown in Figure 4, push the damper blade 22a on the opposite side from the back with the index and middle fingers of that hand, and then move your hand back slightly and use your thumb and remaining fingers to Damper blade 22
The damper blade can be easily opened by sandwiching the free ends of the damper blades a and 22b and engaging the bent portion of the bimetal with the free end of the damper blade 22b.

[Effect] When cleaning parts such as the shutter plate and mesh of the inner cylinder,
By simply rotating the inner cylinder, the inner cylinder can be removed from the outer cylinder with a one-touch operation, and by simply inserting the cleaned inner cylinder into the outer cylinder and rotating it, the inner cylinder can be removed from the outer cylinder with a single touch. Can be installed inside the
Moreover, the inner cylinder can be attached and detached from the indoor side, which is safe and without danger.

Furthermore, a damper device is provided at the rear of the outer cylinder, which closes when the temperature rises abnormally, so in the event of a fire, the damper device operates to cut off ventilation, thereby preventing the spread of fire.

Furthermore, the closed damper blade can be easily opened using the finger hook as described above.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an example of the ventilator according to the present invention, Fig. 2 is a rear view, Fig. 3 is a central vertical sectional side view of Fig. 1, and Fig. 4 is a cross-sectional plan view taken along the - line of Fig. 3. ,
FIG. 5 is an exploded perspective view showing the inner cylinder and its parts. In the figure, 1...outer cylinder, 2...outward flange, 3...
...Guide pin, 4...Inner cylinder, 5...Front plate, 6...
...Ventilation hole, 7...Shutter plate, 8...Vent hole, 9
...Pick, 10...Shaft, 11...Stopper, 12
... Cut for stopper, 13 ... Net frame, 14 ... Insect net, 15 ... Stopper, 16 ... Holder frame, 1
7... Guide slot, 17a... Guide slot end, 18... Leaf spring, 19... Rivet, 2
0... Damper cylindrical body, 21... Support shaft, 22a, 2
2b... Damper blade, 23a, 23b... Hinge tube section, 24... Coil spring, 25a, 2
5b...opening, 26...bimetal, 27,2
9... Rivets, 28... Finger hook piece, A... Wall body,
B...hole.

Claims (1)

[Scope of utility model registration request] A plurality of guide pins protruding into the outer cylinder are provided on the same circumferential line at appropriate positions of a circular outer cylinder having an outward flange on the front edge, and the guide pins are provided on the back side of the front plate surface of the inner cylinder having a front plate with ventilation holes. , by firmly fitting a shutter plate having ventilation holes corresponding to the ventilation holes in the front plate onto the shaft of a knob passed through the center of the front plate, and rotating the shutter plate with the knob, the shutter plate is connected to the inner cylinder front plate. A guide slot is formed from the rear edge of the inner cylinder to correspond to the guide pin of the outer cylinder and is deflected at a certain angle with respect to the circumferential direction of the inner cylinder. The inner cylinder is engaged with the guide pin of the outer cylinder so that it can be attached and detached into the outer cylinder, and a damper cylinder body is provided at the rear of the outer cylinder, and the damper body is provided over one diameter. A pair of damper blades is attached to the support shaft using a spring to close the opening of the rear plate of the damper cylinder, and one damper blade has a bent part that comes off from the other damper blade when the temperature rises abnormally. A mounting aerator comprising a bimetallic base, the bimetal holding the damper blade so as to open the rear plate opening of the damper cylinder, and a finger hook provided on the other damper blade.