JP4722438B2 - Air supply device - Google Patents

Description

  The device according to the present invention is provided with a swing blade and an outside air closing port in a horizontally long air supply duct provided between the inside and the outside of a building, and naturally swings the swing blade by the strength of the wind. The present invention relates to an air supply device that adjusts the flow of outside air into a room.

  The simplest method used to ventilate is a natural ventilation method that opens and closes windows and shojis to replace room air and outside air. However, windows in high-rise buildings are stronger than the ground. For this reason, there are many cases where the windows cannot be opened and closed, and most of them adopt a centralized system using building air conditioning. The structure that can not open and close this window has evolved, and recently there has been an increasing number of buildings that seem to be composed entirely of glass when viewed from a distance, but the building air conditioning of this centralized system completely shuts down the interior Because of this, it will consume a large amount of energy such as oil and electricity. Recently, energy conservation and environmental problems have been screamed and ecology has become popular, and various methods for incorporating natural ventilation have been devised. For example, a natural ventilation device (see Patent Document 1) that ventilates the interior using the eyes and a wind tunnel that is provided with a ventilation opening on the outer wall of the building and that communicates with the inside and outside of the building, and that has an air volume adjustment valve in the wind tunnel (Patent Document) 2) and the like have been provided.

        JP 59-2807 A         Japanese Patent Laid-Open No. 10-232039 FIGS. 1 and 4 and the third page paragraphs 0015 to 0017

  However, although the thing of patent document 1 can adjust manually the amount of the outflow of the wind to a room | chamber interior with a rotating lid, the inconvenience that an internal outflow amount cannot be adjusted automatically according to the amount of inflow of a wind. 1 and 4 of Patent Document 2 are constant air volume natural ventilation devices provided on the lower frame and the upper frame, respectively, and each is provided with an air volume adjusting valve and a back flow control valve, but the back flow control is performed indoors. However, it is not necessary in the case of natural ventilation, and there is an inconvenience of installing an extra device, and both the air flow adjustment valve and the backflow control valve are inclined by a set amount. Although the method of keeping the inside of the wind tunnel in an open state is disclosed that the support position of the support shaft 23 in the elongated hole 22 of the blade piece 21 is adjustable, there is no further description, but in practice Is not getting the point There is a convenience. The present invention has been provided for the purpose of solving such disadvantages.

The present inventor solved the inconvenience by devising that the operation is easy and that the balance is stopped by tilting the blade. That is, the present invention is, in part, have wings is provided in the air supply duct that communicates the inside and the outside of the building, the upper side of the wing, a swingable in the traveling direction of the wind by the support shaft state is supported on the air supply duct, when in the middle of the communication passage of the air supply duct, in which the blade is swung up to a specified maximum deflection position I suited to the opening of the indoor outflow-side, the A closing port that is closed at a portion below the support shaft of the wing is provided , and a sealing member is provided on at least one of the peripheral edge of the wing and the peripheral edge of the wing that contacts the closing port. The blades are balanced in a state where they are inclined at a predetermined angle from the hanging position at the center of the cross section of the support shaft toward the opening of the outside air inflow side when there is no wind inflow from outside. It is comprised by these . Another feature is that a blade swing start timing adjusting means is provided for adjusting the start timing of the swing of the blade due to the inflow of wind from the outside . Another feature is that stop angle adjusting means for adjusting the angle of the blades when there is no wind is provided . Another feature is that a manual and / or electric forced closing means is provided on one end side of the support shaft . In another aspect , a wind sensor is provided outside the building, and the electric forced closing means automatically forcibly closes when the wind sensor detects a wind exceeding a set value. . The wind here is a general term for wind power, air volume, wind pressure, and the like.

Wing swing start timing adjusting means may be fitted with different weight plate heavy in its groove provided several muscle of grooves on top of for example the wing, also bolt length position by bolting a separate weight The rotational moment may be changed by adjusting. The term “bearing” used in the present invention is defined to include bearings, nylon bushes, metal bushes, and the like. Also, the shaft fixing method between the support shaft and the wing may be made to penetrate the entire upper section of the wing, or may be supported at both ends only, or a bracket provided on the wing upper portion may be attached to the support shaft. The shaft may be fixed via

Further, the air supply duct of this provided a net as in the opening of the outside air inflow side for the inside and the outside are been communicated structure does not enter the birds and insects, winds in the opening of the indoor outflow-side Therefore, it is preferable to provide a filter so that dust or the like does not enter the room.

  The air supply device of the present invention is energy-saving because it automatically controls the opening and closing of the closing port by swinging the blade only by natural force (wind force), and a substantially constant amount of air can be supplied by automatic control. Further, since the wing is supported on the upper side and the closing port is closed only by the lower part of the wing from the support shaft, the closing surface becomes one plane, and the work of sealing the peripheral edge of the closing port using a sealing member can be facilitated. Even if the shape of the air supply duct changes variously, the closing port provided in the communication path only needs to be finished in a shape that forms a flat surface, so mounting is easy, and the strength of the wind varies depending on the level. Even in this case, the blade swing start timing adjusting means can be adjusted from the inside of the blade or from the outside of the air supply duct, and the adjustment of the blade swing start with respect to the wind strength is easy. Further, TsubasaYurado start timing adjustment means, it is possible to cope with any tiered be be the same standard components for such a predetermined stop angle adjusting means.

  The air supply device of the present invention is provided with a horizontally long wing in a horizontally long air supply duct so that the wing can be fixed by a shaft via a bearing from outside the air supply duct so as to be able to oscillate. Therefore, the blade is devised so that the blade is inclined further toward the outside airflow inlet side than the position where the support shaft is suspended.

  FIG. 1 is a cross-sectional view of the air supply device of the first embodiment, and FIG. 2 is a manual and electrically operated type of blade swing start timing adjusting means provided on a support shaft 8 protruding outside a horizontally long air supply duct 1. FIG. 3 is a front view of the forced closing device, and FIG. 3 is a three-dimensional view of FIG. First, the configuration will be described. As indicated by the white arrows in FIG. 1, the outside air flows in from the opening 2 side on the outside air inflow side of the air supply duct 1 and enters the indoor side through a filter 4 provided on the opening 3 side on the inside outflow side. Leaked.

  A shaft hole in which a blade 6 that is horizontally long and swings with respect to the direction of wind flow with respect to the communication path 5 is formed in the horizontally long air supply duct 1 having a structure in which the inside and the outside of the building communicate with each other. Both ends are fixed in a swingable manner by a support shaft 8 inserted through a bearing 7 attached to the outside of the air supply duct, and the blade 6 is set in the middle of the communication path 5 toward the opening 3 on the outflow side of the room. A closing port 9 is provided so that the communication path 5 is closed by a portion below the support shaft 8 of the blade 6 when the swing position is reached, and a sealing member 10 is provided at the peripheral edge of the closing port. The blades 6 are configured to be stopped at a well-balanced position when there is no wind flow from outside.

  Further, in FIG. 2, the blade 6 protrudes through the bearing 7 attached to the outside of the air supply duct 1 to the opening 2 on the outside air inflow side with respect to the outside air inflow side from the suspended position at the center of the support shaft section when there is no wind. An external balancer 11 is provided to be inclined and stopped at a predetermined angle, and a flange 13 having a projection 12 is provided on the support shaft 8 adjacent to the external balancer, and the axial center position of the flange 13 is provided. This is an air supply device in which a flange 15 having a projection 14 is provided at the same opposing position, and an electric and manual blade forced closing device 16 is provided. In order to stop the blade 6 at a predetermined inclination angle, the projection 14 is set in advance as a stopper at a predetermined inclination angle in the absence of wind, and the external balancer 11 is arranged so that the opposing projection 12 abuts the projection 14. What is necessary is just to fix and fix the position of. The external balancer 11 also serves as a blade swing start timing adjustment. That is, if the shaft is rotated by a certain angle and fixed, the support shaft 8 is rotated by the rotational moment of the external balancer 11, the projection 12 contacts the projection 14, and the blade 6 is tilted at a predetermined angle and stopped. Further, when the angular position of the external balancer 11 is increased, the rotational moment increases, but the tilt stop angle of the blade 6 does not change because of the stopper by the projection 14, but the blade 6 starts to swing unless a stronger wind is blown. Instead, the swing start timing of the blade 6 can be adjusted by adjusting the position of the external balancer 11. The reason why the blade 6 is configured to be inclined and stopped in the direction of the opening 2 on the outside air inflow side with respect to the hanging position at the center of the cross section of the support shaft 8 in the initial windless state is to allow a large amount of wind to flow. It is. The blades 6 do not swing while the balance is stopped in a tilted state by the own weight and the external balancer 11 until the primary setting wind speed is obtained. In addition, since the primary set amount is not zero but includes a slight wind state, the blade 6 is inclined at a predetermined angle in advance so that a large amount of wind can flow in at that time. It is a configuration.

  The blade forced closing device 16 includes a worm and a worm gear assembled in a casing. A worm shaft 17 extended to the outside of the casing is provided with a handle 18 that can be easily attached and detached. The worm gear shaft 20 connected to the motor 19 with a gear head and extended to the outside of the casing is provided with the flange 15 having the protrusions 14 as described above. FIG. 2 forcibly closes the air supply device on one side. To operate the air supply devices on both sides, the blade forcibly closing device 16 is provided symmetrically, that is, as shown in FIG. That's fine. In the first embodiment, the projection 14 is used as a predetermined inclination stopper for the blade 6, but the predetermined inclination stopper may be another method. For example, an adjustable stopper is provided in the air supply duct to provide the blade. You may comprise so that 6 may contact | abut and stop to the stopper directly.

  Next, the operation will be described. As shown by the white arrow in FIG. 1, the outside air flows in from the opening 2 side on the outside air inflow side of the air supply duct 1 and flows out indoors through the filter 4 provided on the opening 3 side on the indoor outflow side. Is done. The airfoil 6 is in the position indicated by the solid line in FIG. 1 and moves around the support shaft 8 to the position indicated by the two-dot chain line at the second set amount, that is, the set maximum wind speed, depending on the strength of the wind. The wing 6 oscillates during this time. When the primary set amount is exceeded, the blade 6 rotates in the right direction accordingly, and at the secondary set amount, the blade 6 abuts against the seal member of the closing port 9 to close the communication path 5 and the wind is weakened. It will return naturally depending on the strength of the wind.

  Next, in order to forcibly close and close the communication path 5, the handle 18 of the blade forced closing device 16 composed of a worm and a worm gear in FIGS. 1 to 3 is provided on the rotating shaft by rotating in the closing direction. The flange 15 is rotated so that the protrusion 14 contacts the protrusion 12 provided on the opposite flange 13, and further rotates to rotate the support shaft 8 in the direction of the closing port 9 so that the shaft is fixed to the support shaft 8. The blade 6 thus rotated rotates in the direction of the closing port 9 and closes the closing port 9 in close contact with the seal member 10 provided in the closing port 9.

  When the wing forced closing device 16 is manually closed, the closing state is detected by the weight of the handle rotation, but when it is closed electrically by operating in conjunction with the wind sensor, a switch for detecting full closing (not shown) To stop the motor. Similarly, when the motor is opened, when the projection 14 is used as a set inclination angle stopper for the blade 6, it is necessary to provide a position detection switch (not shown) and stop the motor there. The opening operation with the manual handle may be performed by rotating the handle in the reverse direction. At this time, however, care must be taken so that the projection 14 is held in a normal position. Alternatively, a regular position stopper (not shown) may be provided and devised so as to stop there even in the case of manual operation.

  FIG. 5 shows a second embodiment. The blade 6 used in the first embodiment has a shape different from that of the portion above the support shaft 8 in comparison with the first embodiment. The area is increased. For this reason, in the second embodiment, even when the external balancer 11 is not provided, the blade 6 is inclined by a predetermined angle toward the opening 2 on the outside air inflow side with respect to the hanging position at the center of the cross section of the support shaft 8 so that the balance is stopped. It is configured. Furthermore, in order to change the swing start time of the blade 6 depending on the strength of the wind, the adjustment may be performed using the external balancer 11. Other equipment configurations and operations are the same as those in the first embodiment, and are therefore omitted.

  FIG. 6 shows a third embodiment in which the blade swing start timing adjusting means provided above the support shaft 8 is bolted to another weight 21 of the blade 6 with an adjusting bolt 22 to adjust the bolt length position. Thus, the rotation moment is changed to adjust the swing start time corresponding to the wind intensity of the blade 6. In this case, the external balancer 11 may be used as required. Other equipment configurations and operations are the same as those in the first embodiment, and are therefore omitted.

  FIG. 7 shows a fourth embodiment. The swing start timing adjusting means corresponding to the wind strength of the blade 2 provided above the support shaft 8 is provided with several grooves 23 at the top of the blade 6. A weight plate 24 having a different weight is fitted in the groove 23. The adjustment may be performed according to the fitting position and the number of the weight plates 24, and for further setting, the external balancer 11 may be used as required. Other equipment configurations and operations are the same as those in the first embodiment, and are therefore omitted.

  Sectional drawing of the air supply apparatus of Example 1   Front view of parts and equipment for external installation of air supply duct   3D diagram of FIG.   Front view of a forced closure device that forcibly closes both air supply ducts   Blade shape of embodiment 2   Blade cross-sectional shape of Example 3   Blade cross-sectional shape of Example 4

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Supply duct 2 Opening part 3 Opening part 4 Filter 5 Communication path 6 Wing | blade 7 Bearing 8 Support shaft 9 Closing port 10 Sealing member 11 External balancer 12 Projection 13 Flange 14 Projection 15 Flange 16 Blade forced closing device 17 Warm shaft 18 Worm gear shaft

Claims (2)

There are wings in the air supply duct that connects the inside and outside of the building,
The upper side of this wing is supported by the air supply duct so as to be swingable in the direction of the wind by the support shaft,
In the middle of the communication duct of the air supply duct, when the blade swings to the set maximum swing position toward the opening on the indoor outflow side, the blade is blocked at a portion below the support shaft. There is a closed mouth,
A seal member is provided on at least one of the peripheral edge of the closed port and the peripheral edge of the wing that contacts the closed port,
The wing is configured to be stopped in a state inclined at a predetermined angle from the hanging position at the center of the cross section of the support shaft toward the opening on the outside air inflow side when there is no wind inflow from the outside. Has been
An air supply device, characterized in that it is provided with blade swing start timing adjusting means for adjusting the swing start timing of the blade due to the inflow of wind from outside . 2. An air supply device according to claim 1 , further comprising stop angle adjusting means for adjusting the angle of the blades during no wind .

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