JPH0975640A - Air filter-attaching device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air filter-attaching device facilitating the replacing work of an air filter, enhancing replacing work efficiency and the rate of operation of an air purifier using the air filter and simple in structure. SOLUTION: A plurality of the air filters 1 are stacked on a filter loading truck 2 and moved to the filter attaching frame 7 of a fixed filter chamber to be held by the truck 2 and the frame 7. The air filters 1 are pressed to the filter attaching frame 7 by engaging the handle latches 8, 8a of a clamp means with a clamping handle 14 in a pressure contact state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air filter mounting device for easily mounting an air filter of an air cleaning device used for thermal power generation equipment, building air conditioning equipment and the like.

[0002]

2. Description of the Related Art The number of air filters used in an air purifying apparatus increases as the amount of treated air in the air purifying apparatus increases.
Particularly recently, high cleanliness of treated air is required, and instead of using a single filter, a pre-filter, medium-performance filter,
A combination of high-performance filters and the like is used. Therefore, the total number of air filters used per facility may range from tens to hundreds. On the other hand, the air filter generally needs to be replaced every six months to one year, so that a large amount of time is required to replace a large number of filters. 3 (a) and 3 (b) show an outline of a conventional air filter attachment device. That is, the air filter 1 is brought into contact with the flat surface of the filter mounting frame 7a of the stationary filter chamber, and the tightening bolt 21 for fixing one end to the filter mounting frame 7a side is used to make contact with the peripheral edge of the air filter 1. The seat plate 22 is tightened to fix the air filter 1.

FIG. 4 shows an example of a known technique for holding a plurality of air filters. This is utility model registration No. 300635 (registration date October 19, 1994)
“Stackable air filter” disclosed in. As shown in the figure, a plurality of (9 in the figure) air filters 1 are vertically and horizontally stacked and held by a mounting frame 23 and a holding metal fitting 24.

[0004]

In the case of the conventional air filter mounting device shown in FIG. 3, the air filters 1 are tightened one by one by the tightening bolts 21 as described above, and at least one air filter is tightened as shown in the drawing. Air filter 1
4 tightening bolts are required. Therefore, the tightening work requires an extremely long time. Further, in the relatively narrow filter chamber, the fastening work of the fastening bolts 21 is extremely difficult to perform, the fatigue level is high, and the work efficiency is lowered. Meanwhile, utility model registration No. 300563
In the case of the air filter mounting structure shown in No. 5, a plurality of air filters 1 can be integrally assembled, but packing is attached to each air filter 1 and adjacent air filters 1 are attached. Since the comrades are piled up by being stacked by packing, and the whole is held by the mounting frame 23, the mounting structure of the air filter 1 is complicated. In addition, this one is to be installed as it is in the duct of the duct after being in the state shown in the figure, and is of a type in which an air filter is attached to the filter mounting frame and fixed to the filter chamber side as in the present invention. Have different configurations and purposes.

In order to shorten the installation time of the air filter, it is conceivable to reduce the number of air filters used. However, the number of air filters used is determined by the value obtained by dividing the total treated air volume of air by the rated air volume of each air filter, so it is necessary to increase the rated air volume of the air filter in order to reduce the number of air filters used. Become. However,
If the rated air volume is increased, the pressure loss value of the air filter increases, which causes problems such as insufficient capacity of the suction fan of the air cleaning device and increase of the capacity of the suction fan.
Therefore, the present invention improves the method of attaching the air filter to shorten the time required to attach and replace the air filter, improve the work efficiency, and improve the facility operating rate of the air cleaning device in which the air filter is used. An object is to provide an air filter mounting device having a simple structure.

[0006]

In order to achieve the above object, the present invention relates to a plurality of air filters sandwiched between a filter mounting frame of a stationary filter chamber and a movable filter loading carriage. An air filter attachment device for attaching an air filter to a predetermined position of the filter chamber, wherein the filter loading carriage comprises a bottom plate for stacking the air filters, a back plate for abutting and supporting a back surface and a side surface of the air filter, The filter mounting frame comprises a frame-shaped member having a side plate, and the filter mounting frame forms a contact surface with which the front surface of the air filter mounted so as to project from the front surface of the frame-shaped member contacts. An opening having an area substantially equal to the ventilation surface of the air filter is formed on the contact surface of the back plate of the air filter and the filter mounting frame. Between the loading carriage and the filter chamber and constitutes an air filter attachment device fastening means for pressing and holding the filter loading cart to the filter attachment frame side is formed by interposed. More specifically, the filter-carrying carriage is movably supported by casters, and the filter-carrying carriage is suspended on the ceiling side of the filter chamber so as to be movable and / or rotatable along a horizontal plane. The fastening means includes a handle latch fixed to the filter chamber side and a fastening handle rotatably supported on the filter loading carriage side. Each of them is characterized in that a bulging portion is formed which presses the filter loading carriage toward the filter mounting frame side by being pressed against the handle latch.

The plurality of air filters are stably stacked by the bottom plate, the back plate and the side plates of the filter loading carriage.
When the stacking height is high, the filter-carrying carriage is suspended and supported on the ceiling side of the filter chamber so as to be movable in the horizontal direction, thereby maintaining a stable state. By pressing a filter-carrying carriage that is movably formed by casters to the filter mounting frame side of the filter chamber, sandwiching the air filters with both and fixing them with fastening means, the entire plurality of air filters can be easily made at once. Mounted and retained. Further, the air filter is easily clamped between the filter mounting frame and the filter-carrying trolley by adopting the fastening means in which the bulging portion of the fastening handle is pressed against the handle latch on the filter chamber side by the turning motion of the handle. It

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of an air filter mounting device according to the present invention will be described in detail below with reference to the drawings. FIG.
As shown in (b), the filter chamber on the stationary side is provided with a filter mounting frame 7 and handle latches 8 and 8a. The filter mounting frame 7 is made of a plate-shaped member having a flat contact surface 9 formed in the vertical direction, and has an opening 10 having an area corresponding to the ventilation surface of the air filter 1. On the other hand, the handle latch 8 is composed of a plate-shaped projection piece that vertically projects from the ceiling wall 11 and the bottom wall 12 of the filter chamber.

As shown in FIGS. 1 (a) and 1 (b), the filter-carrying trolley 2 is composed of a bottom plate 3 and a frame member surrounded by a back plate 4 and side plates 5 and 5. Air filter 1 is bottom plate 3
The sheets are sequentially stacked on top and mounted, for example, in a three-tier stack as shown. Each air filter 1 has a back plate 4 and side plates 5, 5.
5 is held in abutment with 5, and the front side is mounted so as to be slightly exposed from the filter loading carriage 2. Also, the air filter 1
A gasket (not shown) is attached to the exposed surface side of. Further, the back plate 4 is formed with an opening 6 having substantially the same area as the ventilation surface of the air filter 1. The opening 6 and the opening 10 of the filter mounting frame 7 are arranged at positions facing each other.

Casters 13 are attached to the bottom plate 3 of the filter-carrying trolley 2 and movably support the filter-carrying trolley 2 on the bottom wall 12. Therefore, the filter-carrying vehicle 2 can move in the direction in which the filter-carrying vehicle 2 approaches or separates from the filter mounting frame 7. As shown in FIG. 1, the casters 13 are provided so as to sandwich the handle latch 8a so as not to interfere with the handle latch 8a on the bottom wall 12 side.

There are various types of fastening means, but in this case, the above-mentioned handle latches 8 and 8a and the fastening handle 14 which is press-contacted with the latches 8 and 8a. The fastening handle 14 is provided in the vicinity of the upper end and the lower end of the back plate 4 of the filter-carrying vehicle 2, and is composed of a lever-shaped rotating body pivotally supported by a central shaft 15 fixed to the back plate 4. A bulging portion 16 that projects along the axial direction of the central shaft 15 is integrally formed on the tip end side of the rotating body. That is, the fastening handle 14 is shown in FIG.
In the state shown in (a) and (b), the bulging portion 16 is in pressure contact with the handle latches 8 and 8a, and when it is rotated 90 ° from this position, the engagement with the handle latches 8 and 8a is released. It is formed. Although the contact surface 9 of the filter mounting frame 7 is flat in the above description, the structure is not limited to this, and the contact surface 9 may be a convex portion.

Next, a method of attaching and detaching the air filter 1 by the air filter attaching device according to the above description will be described. First, the air filter 1 is mounted on the bottom plate 3 of the filter loading carriage 2, and the air filters 1 are sequentially stacked. The respective air filters 1 are brought into contact with the back plate 4 and the side plates 5 and 5 of the filter loading carriage 2. In this state, as described above, each of the air filters 1 is held with the front surface of the air filter attached side being slightly exposed from the filter loading carriage 2. The fastening handle 14 of the fastening means is laid down sideways,
When the filter loading carriage 2 is manually pushed, the filter loading carriage 2 supported by the casters 13 moves smoothly and moves toward the filter mounting frame 7 side of the filter chamber, and the air filter 1 is exposed on the contact surface 9. Come into contact with.
When the fastening handle 14 is rotated about 90 ° in this state, the bulging portion 16 of the fastening handle 14 causes the handle latches 8 and 8a.
Then, the filter-carrying carriage 2 is pressed toward the filter mounting frame 7 side. Since a gasket is attached to the front surface of the air filter 1, the air filter 1 is brought into close contact with the contact surface 9 and sealed. Due to the above, a plurality of air filters 1
Can be easily attached to the filter mounting frame 7, and the sealing property of each part can be maintained. On the other hand, when replacing the air filter 1, it is sufficient to perform the procedure in the reverse order to the above, that is, the fastening handle 14 is loosened, the filter loading carriage 2 is retracted, and the air filter 1 is taken out from the inside.

2 (a) and 2 (b) are filter-carried carts 2.
The air filter attachment device with which the connection structure of the upper side of a differs. In the figure, those having the same reference numerals as those in FIGS. 1A and 1B indicate the same things or the things having the same functions, and duplicate explanations are omitted. A suspension metal fitting 18 is fixed on the upper plate 17 of the filter-carried cart 2a. On the other hand, a horizontal bar 19 is fixed to the ceiling wall 11 of the filter chamber via bar supports 20, 20 along a horizontal direction orthogonal to the moving direction of the filter-carrying carriage 2a. The horizontal bar 19 is arranged so as to pass through the center hole of the hanging fitting 18. In addition, in the case of this air filter mounting device,
Although the fastening means are not specified, the same fastening means as the previous one or other fastening means may be adopted. With the above structure, the filter-carried vehicle 2a is guided by the horizontal rod 19 and can move in the horizontal direction. Further, the filter loading carriage 2a can be rotated based on the horizontal bar 19.

Since the filter loading carriage 2a is formed so as to be movable in the horizontal direction, the relative displacement between the filter surface of the air filter 1 mounted on the filter loading carriage 2a and the opening 10 of the filter mounting frame 7 of the filter chamber. The position adjustment can be easily done. Further, by supporting the filter-carried vehicle 2a so as to be rotatable with respect to the horizontal rod 19, it becomes possible to speed up and facilitate the work of attaching and removing the air filter 1. The air filter mounting device shown in FIGS. 2 (a) and 2 (b) can also achieve the same or higher effect as the air filter mounting device. Further, since the upper end side of the filter loading carriage 2a is supported by the horizontal bar 19, the filter loading carriage 2a can be safely held even if the stack height of the air filter 1 becomes high.

In the above description, the casters 13 are used to move the filter-equipped carriages 2 and 2a. However, the present invention is not limited to this, and a known feed movement mechanism may be adopted. Any manual structure may be used. Further, the fastening means is not limited to the handle latches 8 and 8a and the fastening handle 14, but a one-touch type is preferable.

[0016]

According to the present invention, the following remarkable effects are obtained. 1) According to the present invention, since the air filter is replaced by using the filter loading carriage, the replacement work of the air filter in the large-sized filter chamber is facilitated, the replacement time is shortened, and the replacement work efficiency is improved. As a result, it is possible to save costs and improve the operating rate of the air cleaning device. 2) By adopting a moving means such as a caster for easily moving the filter-carrying carriage, the filter-carrying carriage can be freely and smoothly moved. Further, the alignment of the filter chamber with the filter mounting frame becomes easy. 3) By suspending and supporting the filter-carrying carriage from the ceiling side, the filter-carrying carriage can be stably supported, and safety work can be performed without fear of falling. 4) The structure is simple and can be implemented at low cost.

[Brief description of drawings]

FIG. 1 is a front view and a side view of an embodiment of an air filter mounting device according to the present invention.

FIG. 2 is a front view and a side view of an air filter mounting device having a filter loading carriage suspended from the ceiling and supported by a ceiling.

FIG. 3 is a front view and a side view showing an example of a conventional air filter mounting device.

FIG. 4 is a perspective view showing an example of a known technology of a conventional filter holding structure for holding a plurality of air filters.

[Explanation of symbols]

 1 Air Filter 2 Filter Carrier 2a Filter Carrier 3 Bottom Plate 4 Back Plate 5 Side Plate 6 Opening 7 Filter Mounting Frame 8 Handle Latch 9 Abutment Surface 10 Opening 11 Ceiling Wall 12 Bottom Wall 13 Castor 14 Fastening Handle 15 Central Shaft 16 Bulging part 17 Upper plate 18 Hanging metal fitting 19 Horizontal bar 20 Bar support

Claims (4)

[Claims] 1. An air filter attachment device for attaching a plurality of air filters to a predetermined position of the filter chamber by sandwiching a plurality of air filters between a filter attachment frame of a stationary filter chamber and a movable filter loading carriage. The filter-carrying trolley comprises a frame-shaped member having a bottom plate for stacking the air filters, and a back plate and side plates for contacting and supporting the back and side faces of the air filter, and the filter mounting frame is the frame. The air filter, which extends from the front surface of the body-shaped member, forms a contact surface with which the front surface of the air filter comes into contact. The air filter is provided on the contact surfaces of the back plate of the filter loading carriage and the filter mounting frame. An opening having an area substantially equal to the ventilation surface of the filter carrier is formed between the filter carrier and the filter chamber. An air filter attachment device, characterized in that fastening means for pressing and holding the filter attachment frame side is provided. 2. The air filter attaching device according to claim 1, wherein the filter loading carriage is movably supported by casters. 3. The air filter attachment according to claim 1, wherein the filter-carrying carriage is suspended on the ceiling side of the filter chamber so as to be movable and / or rotatable along a horizontal plane. apparatus. 4. The fastening means comprises a handle latch fixed to the filter chamber side and a fastening handle rotatably supported on the filter loading carriage side. The fastening handle includes a turning handle. The air filter mounting device according to claim 1, wherein a bulge portion is formed which presses the filter loading carriage toward the filter mounting frame side by being pressed against the handle latch.