JPH0341225Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to an exhaust device that is mainly used as a home range hood and is capable of removing oil contained in the air exhausted outdoors. It is.

[Conventional technology] Conventionally, hot air generated during cooking in a kitchen,
Range hoods are used to exhaust steam, oil vapor, smoke, etc. The range hood is equipped with a fan to force air out. In such a conventional range hood, there is a problem in that the oil contained in the air exhausted to the outside adheres to the fan, so that the fan is easily soiled and cleaning it is very troublesome. For this reason, efforts are being made to alleviate the inconvenience of cleaning the oil that adheres to fans, and cleaning the blades has become much easier, but cleaning the motor remains a hassle. It is.

On the other hand, as shown in FIG. 13, an oil eliminator 4 is installed between the intake port 21 and the fan 20.
A range hood is provided in which oil is removed by an oil eliminator 40' before air is introduced into the fan 20 by providing an oil eliminator 40'. This range hood uses a mesh-like oil eliminator 40', and has a housing 1.
The fan 20 is formed so as to cover the entire surface of the flow path between the air intake port 21 and the fan 20 formed on the lower surface of the fan 20 . Therefore, the oil contained in the air introduced from the intake port 21 on the lower surface of the housing 10 is removed by the oil eliminator 40' before being transferred to the fan 20.
This makes it possible to reduce the amount of oil adhering to the fan 20.

[Problem that the invention attempts to solve]

In the above conventional configuration, the oil eliminator 40'
However, since the oil eliminator 40' is visible to those cooking under the range hood, it becomes unsightly if it becomes contaminated with oil. Furthermore, it is necessary to work inside the housing 10 to attach and detach the oil eliminator 40', and there is a problem in that the attachment and detachment work is troublesome.

This invention solves the above problems,
To provide an exhaust device which prevents an oil eliminator from coming into the view of a person doing cooking so as not to cause discomfort, and which facilitates the work of attaching and detaching the oil eliminator.

[Means to solve the problem]

In order to achieve the above object, the present invention disposes a guide plate in the housing so as to form a communication port between the inner peripheral surface of the housing and a part of the inner circumferential surface of the housing, which communicates between the intake port and the fan. The holder is pivoted to the inner peripheral surface of the housing so that it can be opened and closed freely at the communication port, and the oil eliminator is detachably attached to the tip of the holder.
The holding body has a first position in which an oil eliminator is arranged between the guide plate and the oil eliminator to cover the lower part of the oil eliminator and is interposed on a flow path from the intake port to the communication port, and a first position in which the oil eliminator is arranged between the intake port and the communication port. Engagement means is movable between a second position protruding downward from the housing, and is provided between the housing and the holding body to engage with each other at the first position to maintain the position of the holding body. It is provided.

In addition, a dash pot is arranged between the inner circumferential surface of the casing facing the holder in the opening/closing direction of the holder and the holder, which brakes the movement of the holder and restricts the amount of protrusion of the oil eliminator downward from the casing. It is set up.

[Effect]

According to the above configuration, when the holder is in the second position, the oil eliminator protrudes below the housing, so the oil eliminator is located at a height that is easy to touch, making it easy to attach and detach the oil eliminator to the holder. It becomes easier.

Furthermore, when the holding body is in the first position, the holding body covers the lower part of the oil eliminator, so that the oil eliminator is not visible from below and does not cause discomfort.

Furthermore, since the holding body is connected to the housing via the dart pot, the position in the second position is regulated by the extending length of the dart pot, and moreover, the holding body can be moved from the first position to the second position. Since the movement of the holding body is braked when it is moved to the second position, no impact is applied when it stops at the second position.

〔Example〕

As shown in FIGS. 1 to 3, substantially the entire lower surface of the housing 10 is open to form an intake port 21. As shown in FIGS.
This housing 10 is formed by removably connecting two members, the front and the rear, and the rear side (left side in Fig. 1).
This member is the hood body 11, and the member on the front side (right side in FIG. 1) is the hood cover 12. The hood body 11 is fixed to a ceiling or the like using a fixture such as a mounting screw. The hood cover 12 is hooked and engaged with the front upper part of the hood body 11,
It is connected to the front lower part of the hood body 11 with screws 13. Therefore, by removing the screws 13, the hood cover 12 can be removed from the hood body 11.

A guide plate 14 is disposed at the bottom of the housing 10, spanning the hood body 11 and the hood cover 12, and continuous with the front edge of the intake port 21. It has a concave curved surface. The rear edge of the guide plate 14 is located at a position downward from the top, and the rear edge of the guide plate 14 is spaced apart from the inner peripheral surface of the rear wall of the housing 10. The guide plate 14 is connected to the housing 10
The interior is divided into two upper and lower chambers, and the housing 10
An opening formed between the inner circumferential surface of the rear wall and the rear edge of the guide plate 14 serves as a communication port 22, which communicates the lower chamber with the upper chamber.

Ru. The guide plate 14 is connected to the inner peripheral surface of the housing 10 at a portion other than the rear edge, and the upper and lower parts of the housing 10 are separated from each other at a portion other than the communication port 22.
It goes without saying that the guide plate 14 can be separated into a portion 14a inside the hood body 11 and a portion 14b inside the hood cover 12.
A fan 20 made of a Sirotskov fan is disposed above the guide plate 14 in the hood body 11, and is disposed so that the suction port of the fan 20 faces downward. The fan 20 is placed on a base plate 15 fixed inside the hood body 11, and the base plate 15 separates the inside of the hood body 11 into upper and lower parts above the guide plate 14, and also Below 15, the hood body 11 and the hood cover 12 are prevented from communicating with each other. As shown in FIG. 5, the base plate 15 is formed with an inlet 16 which opens in a circular shape at a portion corresponding to the inlet of the fan 20, and the air below the base plate 15 is sucked in by the fan 20. It's becoming like that. This fan 20 is fixed to the base plate 15 with four screws, and a fifth
As shown in the figure, the base plate 15 has four
At the same time, four attachment holes 17b are formed between each attachment hole 17a at intervals of 90 degrees, for a total of eight attachment holes 17.
a, 17b are formed. Therefore, the fan 20 can be fixed using either one of the two types of mounting holes 17a, 17b, and for each type of mounting hole 17a, 17b, the fan 20 is fixed at 90 degree intervals. The direction of the discharge port 23 can be changed. In other words, when using one of the mounting holes 17a, the outlet 23 of the fan 20 is directed toward the rear side of the housing 10 as shown in FIG. It can be directed to either side. Here, the discharge port 23 of the fan 20
A straight pipe-shaped exhaust pipe 24 is attached to the housing 10 to form an exhaust port for the flow path inside the housing 10. In addition, when using the other mounting hole 17b, the L-shaped exhaust pipe 24
By attaching this to the discharge port 23, exhaust can be carried out through the upper surface of the housing 10. In this way, you can set various aspects from which to exhaust air.
This has the advantage of widening the range of installation locations and making it extremely user-friendly.

By the way, shafts 31 are provided protruding from the opposing inner surfaces of the rear lower end of the housing 10, and the shafts 31
The holder 30 is pivotally supported by 1. Holder 3
0 is formed by bending a sheet metal into a substantially U-shape, as shown in FIG. 6, and the tips of both legs are bent inward at approximately 90 degrees for reinforcement. A reinforcing plate 32 is installed between the tips of both leg pieces, and the side edges of this reinforcing plate 32 in the width direction are bent at approximately 90 degrees for reinforcement. Both ends of reinforcing wires 33 made of iron wire bent into a chevron shape are welded to both sides of the reinforcing plate 32 in the width direction.
The apex of is welded to the center of the holder 30.
Therefore, the holder 30 is reinforced by the reinforcing plate 32 and the reinforcing wire 33.
Even though 0 is a bent sheet metal,
This can prevent twisting and bending. Notch grooves 34 are provided on both leg pieces of the holding body 30.
is formed, and by attaching this notch groove 34 to a shaft 31 formed on the inner circumferential surface of the housing 10, the holding body 30 can be attached to the housing 10 in a freely movable manner. The holder 30 has a first member whose lower end abuts against the inner circumferential surface of the housing 10 and covers the communication port 22.
and a second position where the tip of the holder 30 protrudes below the housing 10. In the first position, the hook 37 formed on the holding body 30 engages with the engagement plate 18 provided on the inner circumferential surface of the housing 10 to maintain the position. At this time, the upper part of the holder 30 is inclined at an angle θ with respect to the inner circumferential surface of the housing 10. To release the engagement between the engagement plate 18 and the hook 37, the holder 30 may be slid from the state shown in FIG. 8 so as to be lifted in the direction of an angle θ with respect to the inner peripheral surface of the housing 10. As shown in FIGS. 9 and 10, the tip of a rod 51 of a dart pot 50 such as an air cylinder is rotatably connected to the holder 30, and the base of the cylinder 52 of the dart pot 50 is connected to the housing 10. It is attached so that it can rotate freely. Therefore, in the second position, the holding body 30 is restricted in position to the maximum length within the expansion/contraction range of the dart pot 50. Furthermore, by using the dart pot 50, braking is applied when the holding body 30 is raised and lowered, so that when the holding body 30 and the housing 10 are disengaged, the holding body 30 may suddenly fall down or When the body 30 stops at the second position, it is prevented from suddenly stopping and receiving an impact. Dash pot 5
Since the tip of the rod 51 is fixed to the holder 30 with a screw, the holder 30 can be removed from the housing 10 by removing this screw at the second position.

An oil eliminator 40 is removably attached to the end of the holding body 30 opposite to the notched groove 34. As shown in FIG. 7, this oil eliminator 40 has a plurality of spiral blades 42 disposed within each cylindrical body 41 so as to share the axis.
is provided to form a plurality of spiral passages in each spiral blade 42, and the spiral passages are communicated with each other at the axial center, and the inlet and outlet of each spiral passage are on the same plane perpendicular to the axial center. The positions of the inlets and outlets are shifted from each other around the axis. Such oil eliminators, which are already well known, have the advantage of being very easy to clean and having an oil recovery rate of nearly 90%. This oil eliminator 40
is held between a locking piece 35 with an L-shaped cross section attached to the holding body 30 and a pressing piece 36 formed by bending the tip edge of the holding body 30, and the locking piece 3
The holding body 3 is rotated around the corner part of 5.
It is now possible to remove it from 0. In addition, the holding body 3
The end edges of both legs of the oil eliminator 40 are inclined so that both end surfaces of the oil eliminator 40 in the longitudinal direction are exposed from the holder 30. This configuration makes it easier to attach and detach the oil eliminator 40 to the holder 30.

If the holding body 30 is held in the first position as described above, the air introduced from the intake port 21 will always pass through the oil eliminator 40 and then the communication port 22, and the Since the eliminator 40 can remove nearly 90% of the oil as described above, the upper part of the inside of the housing 10 is hardly contaminated. Therefore, Juan 20
The air passing through contains almost no oil. Moreover, since the oil eliminator 40 has a shape that does not cause clogging, the oil removal performance does not deteriorate even if it is not frequently cleaned. In addition, at this time, the lower part of the oil eliminator 40 is covered by the holder 30, so when cooking or other work is performed below the housing 10, the oil eliminator 40 is covered by the holder 30 and cannot be seen. As a result, it has the advantage that dirt is not noticeable. Dirt may adhere to the surfaces of the guide plate 14 and the holder 30 facing the intake port 21, but the stains can be easily wiped off with a cloth soaked in detergent. On the other hand, oil eliminator 40
When cleaning by removing the holder 30 and housing 1,
The oil eliminator 40 can be removed from the holding body 30 by releasing the engagement state with the oil eliminator 40 and pulling it out to the second position. The oil eliminator 40 may be cleaned using a sponge or brush. Furthermore, the holder 30 itself can be removed from the housing 10 if necessary. Further, the hood cover 12 can be removed from the hood body 11 by removing the screws 13 as described above, and the guide plate 14 can be removed from the housing 10 by removing the screws 53.
Since it can be removed from the housing 10, the inside of the housing 10 can be cleaned if necessary. Furthermore, the blades of the fan 20 can be cleaned by removing the hand nut 54.

By the way, when the fan 20 is rotated, indoor air is sucked in through the intake port 21 and exhausted from the discharge port 23, so that negative pressure is generated inside the room. In order to eliminate this negative pressure, a supply cylinder 25 that introduces outside air into the room is provided adjacent to the exhaust pipe 24, and a ventilation hole 26 that is open to the indoor side is formed in one part of the housing 10. There is. That is, the supply cylinder 25 is inserted into the hood body 11 above the base plate 15 to which the fan 20 is attached, and the base plate 15 in the hood body 11
The upper part communicates with the inside of the hood cover 12, and the hood cover 12 is formed with a ventilation hole 26 that communicates the inside of the housing 10 with the room. Therefore, outside air is introduced into the room through the ventilation hole 26 which is introduced into the housing 10 through the supply cylinder 25. Here, the flow path from the intake port 21 to the exhaust pipe 24 and the flow path for introducing outside air into the room are separated by the base plate 15 and the guide plate 14. The ventilation hole 26 is formed in a circular shape, has a bell mouth 26a on the inside of the housing 10, and has a rotating surface with a smooth quadratic curve in cross section on the outside side of the housing 10, so that it can be opened from the surface of the housing 10. It's sunken. Food cover 12
A support post 27 passing through the center of the ventilation hole 26 is attached to the support post 27, and the ventilation hole 26 is attached to the tip of the support post 27.
The cover plate 28 located slightly outside the ventilation hole 2
It is fixed with a gap left between it and 6. The cover plate 28 has an outer surface that is substantially flush with the outer surface of the hood cover 12, and has a vent hole 2.
The inner surface facing 6 is formed into a smooth curved surface. Therefore, the ventilation resistance near the ventilation hole 26 can be made relatively small, and the provision of the cover plate 28 makes the ventilation hole 26 difficult to see from the outside, resulting in an excellent appearance. Further, since there is only one support 27 for fixing the cover plate 28, there is an advantage that even if the support 27 is visible, it is not noticeable.

[Effect of idea]

As described above, the present invention includes a guide plate disposed within the housing and a part of the inner circumferential surface of the housing to form a communication port that communicates between the intake port and the fan, and A holder is pivoted to the peripheral surface so that the communication port can be opened and closed, an oil eliminator is removably attached to the tip of the holder, and the oil eliminator is placed between the holder and the guide plate. A first position where the oil eliminator covers the lower part of the oil eliminator and is interposed on the flow path from the intake port to the communication port, and a second position where the oil eliminator projects downward from the intake port. When the holder is in the first position, the holder covers the lower part of the oil eliminator, so the oil eliminator cannot be seen from below the housing, and as a result, the oil eliminator Even if oil or the like is attached to the food, the person cooking cannot see the oil eliminator and does not feel uncomfortable. Furthermore, when the holder is in the second position, the oil eliminator protrudes below the housing, so the oil eliminator is located at a height that is easy to touch (for example, close to the face), and This makes it easier to attach and detach the oil eliminator.

Furthermore, a dash pot is provided between the inner circumferential surface of the casing facing the holder in the opening/closing direction of the holder and the holder, which brakes the movement of the holder and restricts the amount of protrusion of the oil eliminator downward from the casing. Therefore, the position in the second position is regulated by the length of extension of the dart pot, and when the holding body is moved from the first position to the second position, the movement of the holding body is braked. Therefore, no impact is applied when stopping at the second position. As a result, when the holding body is moved to the second position, there is no risk of injury due to the holding body suddenly falling down, and there is no risk of the oil eliminator coming off by itself due to impact force acting on the holding body. There is none.

[Brief explanation of the drawing]

FIG. 1 is a schematic sectional view showing an embodiment of the present invention;
Figure 2 is a front view of the same as above, Figure 3 is a side view of the same as above,
Figures 4a and b are top views showing how to install the same fan as above, Figure 5 is a perspective view showing the base plate used in the same, Figure 6 is a perspective view showing the holder used in the same, and Figure 6 is a perspective view showing the base plate used in the same. Figure 7 is a perspective view showing the oil eliminator used in the above, Figure 8 is a side view showing the holder used in the same, Figure 9 is an operation explanatory view showing the holder used in the same, and Figure 10 is the same as the above. 11 is a schematic sectional view of the main parts showing the hood cover used in the above, FIG. 12 is a perspective view of the main parts showing the hood cover used in the same, and FIG. 13 is a schematic showing the conventional example. FIG. 10 is a housing, 14 is a guide plate, 20 is a fan, 2
1 is an intake port, 22 is a communication port, 24 is an exhaust pipe, 30
40 is an oil eliminator, and 50 is a dump pot.

Claims (1)

[Scope of utility model registration request] A housing whose bottom surface is open to form an intake port and an exhaust port is provided on the other surface to form a flow path for air between the intake port and the exhaust port, and a housing that is disposed within the flow path and is introduced from the intake port. An oil eliminator is installed between the exhaust port and the oil eliminator in the flow path to remove oil contained in the air, which accelerates the air introduced from the intake port and exhausts it out of the housing through the exhaust port. In the exhaust system having a fan, a guide plate is disposed within the housing so as to form a communication port between the intake port and a part of the inner circumferential surface of the housing, which communicates between the intake port and the fan; A holder is pivotally attached to the inner peripheral surface of the housing so that the communication port can be opened and closed, an oil eliminator is removably attached to the tip of the holder, and an oil eliminator is installed between the holder and the guide plate. A first position in which the eliminator is placed to cover the lower part of the oil eliminator and interposed on the flow path from the intake port to the communication port, and a second position in which the oil eliminator projects downward from the intake port. An engaging means is provided between the housing and the holder, which engages with each other at a first position to maintain the position of the holder. An exhaust system characterized in that a dart pot is disposed between the inner circumferential surface of the housing facing the holding body and the holding body to brake the movement of the holding body and to restrict the amount of protrusion of the oil eliminator downward from the housing. Device.