JP4704867B2 - Air filter device and air filter mounting method thereof - Google Patents

Description

  The present invention relates to an air filter device in which an air filter is mounted in a chamber and a method for mounting the air filter.

  Conventionally, an air filter mounting structure of this type of air filter device has a filter frame that holds the outer periphery of the filter medium of the air filter in an airtight manner to the filter mounting frame provided in the chamber. An engagement recess is provided, and an engagement pin that is freely engageable with the engagement recess is provided on the filter mounting frame, and the filter frame and the filter mounting frame are engaged with the engagement pin. There is one that is sealed with a sealing material (see, for example, Patent Document 1).

  As another air filter mounting structure, an air filter unit is connected and fixed to a duct chamber suspended from a ceiling frame. The upper side of the air filter of the air filter unit is brought into close contact with the filter mounting frame through a sealing material. In some cases, the lower side is detachably fixed to the lower surface of the filter mounting frame, and the filter mounting frame is housed and connected in a duct chamber to close the air outlet (see, for example, Patent Document 2). .

JP-A-9-52012 Japanese Patent Laid-Open No. 11-141940

  However, in the air filter mounting structure disclosed in Patent Document 1, it is necessary to provide an engagement recess on the outer periphery of the filter frame, and in order to attach the air filter to the chamber, it is engaged with the engagement recess on the outer periphery of the filter frame. There is a problem that the pin has to be engaged, and after the mounting to the chamber, it is necessary to seal between the filter frame and the filter mounting frame with a sealing material, and the workability is poor.

  In addition, in the air filter mounting structure disclosed in Patent Document 2, the air filter frame and the air filter mounting frame are integrated by inserting a screw into the shield pop nut from below the fixing member extending from the air filter frame. There is a problem that a large number of members such as screws are required.

  The chamber for installing the air filter is generally mounted on the ceiling, and it must be installed or replaced at a high place. It was difficult. Further, in order to supply clean air to the room, it is an important factor to secure and fix the air filter and the air filter mounting frame.

  Accordingly, the present invention has been made to solve the above-described problems, and while ensuring airtightness between the filter frame and the air filter mounting frame, the mounting operation or replacement operation of the air filter in the chamber is performed. It is an object of the present invention to provide an air filter device that can be easily performed by one person and a method for mounting the air filter.

In the air filter device of the present invention for achieving the above object, a filter frame for airtightly holding the outer periphery of a filter medium of an air filter is fixed to a filter mounting frame provided in a box-shaped chamber while ensuring airtightness. It is an air filter device, and is provided at at least two opposite positions among four positions located at each of four corners in the chamber or four side wall surfaces in the vicinity thereof, and a frame frame of the filter frame of the air filter a receiving portion for receiving a possess a fixing bracket for mounting a projecting said receiving into the chamber from the side wall surface of the chamber, an air filter attachment mechanism comprising an adjustment unit that adjusts its height in conjunction with the receiving part The air filter is inserted into the chamber from below to the height of the receiving portion at a position where the corner portion of the filter frame avoids the air filter mounting mechanism. Characterized in that to enable.

The air filter device of the present invention is an air filter device in which a filter frame that holds the outer periphery of a filter medium of an air filter is fixed to a filter mounting frame provided in a box-shaped chamber while ensuring airtightness. A receiving portion for receiving a frame frame of the filter frame of the air filter, provided at at least two opposing positions among the four positions located at the four corners in the chamber or at the four side wall surfaces in the vicinity thereof. An air filter mounting mechanism comprising: a fixing fitting that protrudes from the inner wall surface of the chamber into the chamber and attaches the receiving portion; and an adjustment portion that is connected to the receiving portion and adjusts the height thereof; and the filter of the air filter and a sealing member provided between the upper surface of the frame the filter mounting frame of the chamber, corners of the filter frame is the air filter At a position avoiding the biasing mechanism, the air filter can be inserted from below into the chamber to a height of said receiving portion, and at the height adjustment of the receiving part by the adjustment unit, the the upper surface of the filter frame chamber The filter mounting frame is in contact with the filter mounting frame while ensuring airtightness through the sealing material.

In the air filter mounting method of the present invention, the filter frame that holds the outer periphery of the filter medium of the air filter in an airtight manner is fixed to the filter mounting frame provided in the box-shaped chamber while ensuring airtightness. A receiving portion for receiving a frame frame of the filter frame of the air filter, provided at at least two opposing positions among the four positions located at each of the four side wall surfaces at or near the four corners, and the side wall surface of the chamber A mounting method for mounting the air filter of the air filter device having an air filter mounting mechanism that includes a fixing bracket that protrudes into the chamber and attaches the receiving portion, and an adjustment portion that is connected to the receiving portion and adjusts the height thereof. there, the corner portion of the filter frame, to match the indicia clearly the position to avoid the air filter attachment mechanism, before the air filter Was inserted into the chamber, then the air filter, a frame picture frame of the air filter frame placed temporarily temporarily the receiving portion by the frame sides of the side and the chamber of said filter frame is possible to rotate so as to parallel , the adjustment unit by adjusting the height of the receiving portion, said filter mounting frame of the upper surface and the chamber of said filter frame, characterized in that the abutment to secure the airtightness via a seal member.

  According to the air filter device of the present invention, one person can easily perform the work of mounting or replacing the air filter in the chamber. In addition, after installing the air filter in the chamber, the air filter can be installed in the chamber with airtightness without sealing with a sealing material, so that workability is improved and cost is reduced. . Further, when fixing the air filter, it is easy to attach the air filter frame in the chamber without the need for screws or the like.

  Hereinafter, embodiments of an air filter device and an air filter mounting method of the present invention will be described with reference to FIGS. 1 to 4.

  FIG. 1 is a perspective view showing an embodiment in a state where an air filter is mounted in a chamber of an air filter device according to the present invention. FIG. 2 is a perspective view showing an embodiment in which an air filter is attached in the chamber. 1 and 2 show a state in which the chamber attached to the ceiling is viewed from the lower surface side.

  1 and 2, the air filter device according to the embodiment is a ceiling (not shown) with a cubic air filter 2 attached to the lower side in a cubic (box-shaped) chamber 1, for example. Installed on wood.

  A U-shaped filter mounting frame 13 (see FIG. 3) is provided around the side wall at an intermediate position in the chamber 1 having a blower outlet on the lower surface. A sealing material 12 (see FIG. 3) attached to the upper surface of the air filter 2 is brought into contact with a U-shaped filter mounting frame 13 in the chamber 1, and the lower surface of the air filter 2 is in the chamber 1. The knob bolt receiving portion 7 of the knob bolt 9 fixed at a predetermined position (for example, four corners) is in contact with the frame frame 6 of the air filter 2. With the sealing material 12, the air filter 2 is fixed in the chamber 1 while ensuring airtightness. A fixing bracket 8 for the knob bolt 9 is provided between the knob bolt 9 and the knob bolt receiving portion 7. The fixing metal 8 is fixed to the inner surface near the air outlet of the chamber 1 and holds the knob bolt 9 and the knob bolt receiving portion 7. Examples of the sealing material 12 include a chloroprene gasket and a silicon gasket.

  And all the air which flowed in from the damper duct part which is not illustrated of the chamber 1 is discharge | released via the filter medium 2a of the air filter 2, and clean air is discharge | released indoors.

  Next, a method for mounting the air filter 2 in the chamber 1 will be described.

  FIG. 3 is a detailed cross-sectional view showing the first embodiment of the air filter fixing mechanism when the air filter 2 is mounted in the chamber 1. Fixing brackets 8 for the knob bolts 9 are provided at the lower four corners in the chamber 1. Furthermore, a stopper 14 for disposing the air filter 2 at a predetermined position is provided from the fixture 8 toward the upper side in the chamber 1. The height adjustment of the knob bolt receiving part 7 is performed by rotating the knob bolt 9.

  When installing the air filter 2 in the chamber 1, first, as shown in FIG. 1, the frame frame 6 of the filter frame 3 holding the filter medium 2 a in an airtight manner along the lower inner peripheral surface of the chamber 1 is manually The corner portion 10 of the air filter 2 is aligned with the four arrows 5 provided under the chamber frame 4 and inserted into the chamber 1. That is, the four arrows 5 clearly indicate a position where the knob bolt 9 is avoided, and the corner 10 of the air filter 2 is inserted into the chamber 1 from below the position indicated by the arrow 5. It is. Therefore, the air filter 2 is rotated by a predetermined angle during insertion.

  Next, as shown in FIG. 2, the air filter 2 inserted up to the height of the knob bolt receiving portion 7 is rotated in the rotation direction 11. That is, the air filter 2 that has been rotated when inserted into the chamber 1 is returned to a position where it can be placed on the knob bolt receiving portion 7. At this time, when the air filter 2 is rotated until it comes into contact with the stopper 14 attached to the fixing bracket 8, the sealing material 12 of the air filter 2 is arranged at a position in contact with a predetermined position of the filter mounting frame 13. Become. If it will be in this state, the frame frame 6 of the filter frame 3 of the air filter 2 will be arrange | positioned in the upper position of the knob volt | bolt receiving part 7, and even if it releases a hand from the frame frame 6, the air filter 2 will not fall. The air filter 2 is held by a knob bolt receiving portion 7 provided at the corner.

  Next, when the knob bolt 9 is rotated, the knob bolt receiving portion 7 is raised, and the sealing material 12 of the air filter 2 is brought into contact with the filter mounting frame 13 provided on the inner peripheral wall of the chamber 1 and is fastened and fixed. The airtightness is maintained. The rotation of the knob bolt 9 can be sufficiently tightened by a human hand and does not require a tool or the like, so that the workability is very excellent.

  FIG. 4 is a detailed cross-sectional view showing a second embodiment of the air filter fixing mechanism when the air filter 2 is mounted in the chamber 1.

  The air filter fixing mechanism of the second embodiment differs from that shown in FIG. 3 in that a stopper bolt 14b serving also as a stopper is connected to a stud bolt 15 provided on the lower side from the filter mounting frame 13, and the stopper bolt 14b is connected to the stopper bolt 14b. The fixing bolt 8b of the knob bolt 9 is tightened and fixed with a nut 16. In this case, when the air filter 2 is rotated after being inserted, it is not necessary to provide as a separate member a stopper that the air filter frame 3 contacts. Other configurations are the same as those in FIG.

  Next, a method for mounting the air filter 2 in the chamber 1 using the fixing mechanism of the second embodiment will be described. As shown in FIG. 2, the air filter 2 inserted up to the height of the knob bolt receiving portion 7 is rotated in the rotation direction 11. At this time, when the air filter 2 is rotated until it comes into contact with the stopper bolt 14b attached to the fixing bracket 8b, the sealing material 12 of the air filter 2 is arranged at a position where it comes into contact with a predetermined position of the filter mounting frame 13. become. If it will be in this state, the frame frame 6 of the filter frame 3 of the air filter 2 will be arrange | positioned in the upper position of the knob volt | bolt receiving part 7, and even if it removes a hand from the frame frame 6, the air filter 2 will not fall. The air filter 2 is held by a knob bolt receiving portion 7 provided at the corner. Subsequent operations are the same as those in the first embodiment, and a description thereof will be omitted.

  In the embodiment, the air filter fixing mechanism is provided at the four corners in the chamber. However, the fixing mechanism may be provided at at least two opposing positions in the chamber. Further, the knob bolt receiving portion and the knob bolt of the fixing mechanism of the air filter are not limited to this, and the size, shape, and the like are appropriately changed. Further, the stopper may not be attached to the fixture, but may be attached to the inside of the chamber.

  According to the air filter devices of the first and second embodiments described above, the work of attaching or replacing the air filter in the chamber can be easily performed by one person. In addition, since the air filter can be secured in the chamber without being sealed with a sealing material after the air filter is installed in the chamber, the workability is improved and the cost is reduced.

  Further, according to the second embodiment, there is no need to provide a stopper against which the filter frame hits as a separate member.

The perspective view which shows the shape of embodiment which an air filter is attached in the chamber of the air filter apparatus concerning this invention. The perspective view which shows embodiment of the state in which the air filter was attached in the chamber of the air filter apparatus concerning this invention. The detailed sectional view showing the 1st embodiment which fixes the air filter of the air filter device concerning the present invention in the chamber. The detailed sectional view showing the 2nd embodiment which fixes the air filter of the air filter device concerning the present invention in the chamber.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Chamber 2 Air filter 2a Filter medium 3 Filter frame 4 Chamber frame 5 Arrow 6 Frame frame 7 Knob bolt receiving part 8, 8b Fixing bracket 9 Knob bolt 10 Corner part 11 Rotating direction 12 Sealing material 13 Filter mounting frame 14a Stopper 14b Stopper bolt 15 Stud bolt 16 nuts

Claims (6)

An air filter device in which a filter frame that holds the outer periphery of a filter medium of an air filter in an airtight manner is fixed to a filter mounting frame provided in a box-shaped chamber while ensuring airtightness,
Of the four locations located on each of the four side wall surfaces of the four corners or near the chamber, provided at two positions at least opposite the receiving portion for receiving a frame picture frame of the filter frame of the air filter, the possess a fixing bracket for mounting a projecting said receiving into the chamber from the side wall surface of the chamber, the air filter attachment mechanism comprising an adjustment unit that adjusts its height in conjunction with the receiving portion,
An air filter device characterized in that the air filter can be inserted into the chamber from below to the height of the receiving portion at a position where a corner portion of the filter frame avoids the air filter mounting mechanism . An air filter device in which a filter frame that holds an outer periphery of a filter medium of an air filter in an airtight manner is secured to a filter mounting frame provided in a box-shaped chamber while ensuring airtightness,
Of the four locations located on each of the four side wall surfaces of the four corners or near the chamber, provided at two positions at least opposite the receiving portion for receiving a frame picture frame of the filter frame of the air filter, the An air filter mounting mechanism comprising a fixing fitting that protrudes from the side wall surface of the chamber into the chamber and attaches the receiving portion, and an adjustment portion that is connected to the receiving portion and adjusts its height;
A sealing material provided between the upper surface of the filter frame of the air filter and the filter mounting frame of the chamber;
In the position where the corner portion of the filter frame avoids the air filter mounting mechanism, the air filter can be inserted into the chamber from below to the height of the receiving portion, and the height of the receiving portion can be adjusted by the adjusting portion. An air filter device, wherein the upper surface of the filter frame and the filter mounting frame of the chamber are in contact with each other while ensuring airtightness through the sealing material. The air filter device according to claim 1 or 2 , wherein a mark indicating alignment of a corner portion of the air filter frame is provided on a chamber frame.   3. The air filter device according to claim 1, wherein the fixing bracket is fixed to a lower side wall in the chamber or the filter mounting frame of the chamber. Wherein the air filter attachment mechanism, further, when installed in the receiving part by inserting the air filter into the chamber, wherein the stopper for positioning the filter frame of the air filter is provided The air filter device according to claim 1 or 2. The filter frame that holds the outer periphery of the filter medium of the air filter in an airtight manner is fixed to the filter mounting frame provided in the box-shaped chamber while ensuring airtightness,
Of the four locations located on each of the four side wall surfaces of the four corners or near the chamber, provided at two positions at least opposite the receiving portion for receiving a frame picture frame of the filter frame of the air filter, the The air filter of the air filter device having an air filter mounting mechanism comprising: a fixing metal fitting protruding from the side wall surface of the chamber into the chamber and mounting the receiving portion; and an adjusting portion connected to the receiving portion and adjusting the height thereof. A mounting method for mounting,
The corner portion of the filter frame, to match the indicia clearly the position to avoid the air filter attachment mechanism, inserting the air filter into the chamber,
Next, the frame frame of the air filter frame is temporarily temporarily placed in the receiving portion by rotating the air filter so that the side of the filter frame and the frame side of the chamber are parallel to each other,
Wherein the adjusting unit adjusts the height of the receiving part, the air filter and the upper surface of the filter frame and the filter mounting frame of the chamber, characterized in that the abutment to secure the airtightness via a seal member Mounting method.

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