JP4264268B2 - Insect screen cleaning device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an insect net cleaning device.
[0002]
[Prior art]
Conventionally, ventilation of a house has been performed by introducing fresh air through a duct from a vent opening opened to the outside, and ventilating indoor dirty air through the duct. In addition, an insect screen is provided at the ventilation opening to prevent the entry of insects and the like from outside.
[0003]
However, there is a possibility that insects, dust, and the like are clogged in the insect net and the ventilation efficiency is lowered, and the insects, dust, etc. attached to the insect net are removed (for example, Patent Document 1).
[0004]
[Patent Document 1]
JP-A-7-174380
[Problems to be solved by the invention]
However, in the above-described conventional publication, the brush is manually or automatically operated to remove dust and dirt adhering to the insect screen, and in the case of manual operation, there is a problem that the operation is complicated. However, there is a problem that a separate driving device is required.
[0006]
An object of the present invention is to provide a cleaning device for an insect screen that can easily prevent the insect screen provided in the duct from being clogged and prevent a reduction in the efficiency of air supply or exhaust.
[0007]
[Means for Solving the Problems]
The invention according to claim 1, the insect screen provided in the duct, and a propeller rotated by wind passing through the duct, the blades of the propeller, with a brush in contact with each insect screen, each The brush is provided at different positions in the radial direction of the propeller, and the insect net is cleaned with the brush by the rotation of the propeller.
[0008]
In the first aspect of the present invention, the air sucked from the room or the like of the building passes through the inside of the duct and is exhausted to the outside of the building through a vent opening opened outdoors. When the air passes through the insect net, the propeller is rotated by the wind generated by the air flow. When the propeller rotates, insects and dust attached to the insect net are cleaned by a brush attached to the blades of the propeller. In addition, when fresh air is taken into the building from a ventilation opening that opens outdoors, the rotation of the propeller similarly cleans insects, dust, and the like attached to the insect net by a brush attached to the propeller.
[0009]
In this way, the propeller is rotated by the wind, and the insects and dust attached to the insect screen can be cleaned by the brush provided on the blade of the propeller. A driving device is also unnecessary.
[0010]
Accordingly, it is possible to easily prevent the accumulation of insects, dust and the like in the insect screen, and it is possible to prevent the efficiency of air supply or exhaust from being reduced. Also, by providing each brush at a different position in the radial direction of the propeller, it is possible to reduce the size of one brush, reduce friction during rotation of the propeller, and only the wind passing through the duct. It can be easily rotated with the power of.
[0011]
The invention according to claim 2 includes an insect repellent net provided in the duct and a propeller that is rotated by wind passing through the duct, and a plurality of brush holding members that extend radially in the coaxial direction of the propeller. The brush holding member has a brush that contacts the insect net, and each brush is provided at a different position in the radial direction of the propeller, and the brush is attached to the brush holding member by the rotation of the propeller. It is characterized by cleaning.
[0012]
According to the second aspect of the present invention, the same effect as that of the first aspect of the invention can be obtained, and the brush is provided on the brush holding member of the shaft of the propeller, so that it is manufactured as compared with the case where the brush is directly attached to the blade. Is easy.
[0013]
[0014]
[0015]
The invention according to claim 3 is the unit according to claim 1 or 2 , wherein the insect net, the propeller, and the brush are units integrally accommodated in the case, and the case is connected to the duct. .
[0016]
In the invention according to the third aspect , the same effect as the invention according to the first or second aspect is achieved, and the insect net, the propeller, and the brush are units housed integrally in the case. Can be easily retrofitted to the duct.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be specifically described below with reference to the drawings. 1 is a cross-sectional view schematically showing an insect screen cleaning apparatus according to the present invention, FIG. 2 is a front view of the cleaning apparatus according to FIG. 1, and FIG. 3 is a schematic view of a building equipped with the cleaning apparatus according to FIG. It is a schematic diagram shown in FIG.
[0018]
An insect screen cleaning device (hereinafter simply referred to as a cleaning device) 1 according to the present invention is mainly provided in a ventilation device 50 on the back of a ceiling of a building 100, and the ventilation device 50 is a blower driven by an electric motor. 11, air supply / exhaust ports 13 and 15 that are opened in the ceiling or back of the room, a cylindrical duct 17, and a ventilation port 19 that opens through the wall 7 to the outside. And while supplying fresh air from the outside, dirty air in the room is exhausted. The ventilation port 19 is provided with an external cover 20 to prevent rainwater from entering the duct 17. The ventilation port 19 is provided with a guide plate 21 for preventing insects and dust from entering.
[0019]
The cleaning device 1 is provided in the vicinity of the ventilation opening 19 in the duct 17, and the cleaning device 1 includes an insect net 5 provided in the duct 17 and a propeller 9 that is rotated by wind power. Further, the propeller 9 includes a brush 3 that contacts the insect net 5, and the insect net 5 is cleaned by the brush 3 interlocked with the rotation of the propeller 9.
[0020]
The propeller 9 has three blades 9a, 9b, 9c, and a rotation shaft (shaft) 23 attached to the center thereof, and the propeller 9 rotates around the rotation shaft 23. The rotating shaft 23 is supported by a support member 25, and the support member 25 is fixed to the duct 17.
[0021]
The brush 3 is attached to each of the three blades 9a, 9b, and 9c, and the attachment of the brush 3 is provided at different positions in the radial direction of the three blades 9a, 9b, and 9c.
[0022]
That is, among the brushes 3 attached to the three blades 9a, 9b, and 9c, the first brush 3a is attached to the root portion of the blade 9a, and the second brush 3b is the intermediate portion in the radial direction of the blade 9b. Is attached. Further, the third brush 3c is attached to the tip of the blade 9c. Thus, by providing the brush 3 at different positions in the radial direction of the blades 9a, 9b, 9c of the propeller 9, the brush 3 per one can be made small, and friction during rotation of the propeller 9 can be reduced. Can be small and easy to rotate. Further, by reducing the size of each brush 3, the brush can be easily attached to the curved portion of the propeller 9.
[0023]
Next, the operation of the present embodiment will be described based on the above configuration. When the blower 11 is driven by the electric motor, dirty air in the building is sucked from the air supply / exhaust ports 13 and 15 opened in the ceiling portion or the back of the ceiling of the room. The sucked air passes through the duct 17, passes through the insect screen 5, and is exhausted outside the building through a ventilation opening 19 opened to the outside. When air passes through the insect net 5, the propeller 9 is rotated by the wind generated by the air flow. When the propeller 9 rotates, the brushes 3 provided on the blades of the propeller 9 clean insects, dust and the like attached to the insect net 5.
[0024]
In this way, the propeller 9 rotates by the air flow generated by the driving of the blower 11, and the insects and dust attached to the insect net 5 can be cleaned by the brush 3 provided on the propeller 9. In addition, no human operation is required, and a separate driving device for the brush 3 is not required.
[0025]
Further, in the present embodiment, the brush 3 is provided at different positions in the radial direction of the blades 9a, 9b, 9c of the propeller 9. Further, the brushes 3a, 3b, 3c are divided into radial base portions, intermediate portions, and tip portions of the blades 9a, 9b, 9c, thereby reducing the size of the brush 3 per one and the curved portion of the propeller 9. On the other hand, the brush 3 can be easily attached, and as shown by a one-dot chain line in FIG.
[0026]
Note that the ventilator 50 can also take fresh air into the building from the vent 19 opened outdoors, and the air introduced from the vent 19 is taken into the room through the duct 17. Also in this case, the propeller 9 is rotated by the wind caused by the air flow passing through the insect screen 5, and the rotation of the propeller 9 removes insects, dust, and the like attached to the insect screen 5 by the brush 3 provided on the propeller 9. Is done.
[0027]
Next, other embodiments will be described. In the description, parts having the same functions and effects as those described above are denoted by the same reference numerals, and detailed description thereof is omitted. In the description of the above, differences from the first embodiment will be mainly described.
[0028]
The second embodiment is different from the first embodiment in that the insect net 5, the propeller 9, and the brush 3 are a unit 30 that is housed in a case 31 and the case 31 is attached to the duct 17. As shown in FIG. 4, the case 31 is provided between one duct 27 and the other duct 29, and the connection between the case 31 and the one and other ducts 27 and 29 is made via a flange (not shown). Both are fixed with connecting tools such as screws and bolts.
[0029]
Thus, since the case 31 containing the insect screen 5, the propeller 9 and the brush 3 is attached to the duct 17 as an integrated unit 30, retrofitting into the existing duct 17 can be easily performed. Further, by removing the case 31, maintenance such as replacement and cleaning of the insect screen 5 and the brush 3 can be easily performed.
[0030]
In addition, as shown in FIG. 5, by changing the left and right sides of the case 31, the position of the propeller 9 and the brush 3 can be set to the air supply side (ventilation port 19 side) from the insect screen 5. Corresponding installation is possible.
[0031]
The third embodiment is different from the first embodiment in that the brush 3 that contacts the insect net 5 is provided on a brush holding member 33 that is attached to the rotation shaft (shaft) 23 of the propeller 9. As shown in FIG. 6, the rotating shaft 23 of the propeller 9 passes through the insect net 5 and protrudes to the vicinity of the entrance of the duct 17, and three brush holding members 33 are provided in the radial direction at the tip of the rotating shaft 23. It has been. The brush 3 is attached to the brush holding member 33.
[0032]
Thus, since the brush 3 is attached to the brush holding member 33, it is not necessary to attach the brush 3 directly to the propeller 9, and attachment is easy. Further, since the brush holding member 33 does not have a curved portion like the propeller 9, the brush 3 can be attached to an arbitrary position of the brush holding member 33 as shown in FIG.
[0033]
The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the invention. For example, in the first embodiment, the number of blades of the propeller 9 is three, but is not limited to this, and may be two, for example, or four or more.
[0034]
The brush 3 is divided and provided at the root portion, the intermediate portion, and the tip portion in the radial direction of the blades 9a, 9b, and 9c. However, the present invention is not limited to this, and a plurality of locations of one blade (for example, 9a) (For example, the base portion and the tip portion) may be provided.
[0035]
In the second embodiment, the insect net 5, the propeller 9 and the brush 3 are integrally stored in the case 31, and the case 31 is attached to the connecting portion of the duct 17, but it is also attached to the ventilation port 19 shown in FIG. The case 31 may be used. In this case, the external cover 20 and the guide member 21 are removed, the case 31 is inserted into the duct 17 from the entrance of the duct 17, and the case 31 and the duct 17 are connected to each other for easy retrofitting.
[0036]
【The invention's effect】
In the invention according to claim 1, since the propeller is rotated by wind force, and insects and dust attached to the insect screen can be cleaned by a brush provided on the propeller, no human operation is required for cleaning the insect screen, A separate brush driving device is also unnecessary.
[0037]
Accordingly, it is possible to easily prevent the accumulation of insects, dust and the like in the insect screen, and it is possible to prevent the efficiency of air supply or exhaust from being reduced.
Also, by providing each brush at a different position in the radial direction of the propeller, it is possible to reduce the size of one brush, reduce friction during rotation of the propeller, and only the wind passing through the duct. It can be easily rotated with the power of.
[0038]
The invention according to claim 2 achieves the same effects as the invention according to claim 1, and is manufactured by providing the brush on the brush holding member of the shaft of the propeller, as compared with the case where the brush is directly attached to the blade. Easy.
[0039]
[0040]
The invention described in claim 3 has the same effect as that of the invention described in claim 1 or 2 , and the insect net, the propeller, and the brush are units housed integrally in the case. Can be retrofitted easily.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view schematically showing an insect screen cleaning apparatus according to the present invention.
FIG. 2 is a front view of the cleaning device according to FIG.
FIG. 3 is a schematic diagram schematically showing a building including the cleaning device according to FIG. 1;
FIG. 4 is a cross-sectional view showing a cleaning device according to a second embodiment.
FIG. 5 is a sectional view showing a modification of the cleaning device according to the second embodiment.
FIG. 6 is a sectional view showing a cleaning device according to a third embodiment.
FIG. 7 is a front view showing a cleaning device according to a third embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cleaning apparatus of insect net 3 Brush 5 Insect net 9 Propeller 9a, 9b, 9c Blade 17 Duct 30 Unit 31 Case 33 Brush holding member

Claims (3)

Insect repellent net provided in the duct and a propeller that rotates by wind passing through the duct, and each blade of the propeller is provided with a brush that contacts the insect repellent net, each brush being different in the radial direction of the propeller An insect screen cleaning apparatus , which is provided at a position and cleans the screen with a brush by rotating a propeller. An insect repellent net provided in the duct and a propeller that is rotated by the wind passing through the duct are provided. The propeller shaft includes a plurality of brush holding members extending in the radial direction. And each brush is provided at a different position in the radial direction of the propeller, and the insect net is cleaned with a brush attached to the brush holding member by the rotation of the propeller. Cleaning equipment. The insect screen cleaning apparatus according to claim 1 or 2 , wherein the insect screen, the propeller, and the brush are units integrally housed in the case, and the case is connected to the duct.

Images