JPH0510904Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention is a gasket that allows even one worker to attach a filter to a casing that constitutes a filter unit fixed to a ceiling surface. This relates to a filter mounting device of the type in which the filter is fixedly attached to the upper peripheral edge of the frame.

[Prior Art] Conventionally, as shown in FIG. 6, a filter 35 with a gasket 33 fixed to the upper peripheral edge of a frame 34 is attached to a casing 32 constituting a filter unit 31 fixed to a ceiling surface. A filter receiving plate 37 that is in pressure contact with the gasket 33 is provided on the upper part of the inner wall 36 of the casing 32, and a cap nut 38 that is vertically disposed on the filter receiving plate 37 is connected to the upper part of the long bolt 39. The lower part of the long bolt 39 is screwed into the filter 3.
5 is formed so that it can be inserted into a fastening fitting 41 formed with a fastening piece 40 for tightening the long bolt 39, and a tightening nut 42 is screwed into the lower part of the long bolt 39 to fix the tightening fitting 41. To install the filter 35, insert the fastening metal fitting 41 into the long bolt 39 from below, tighten the tightening nut 42 from below, press the gasket 33 of the filter 35 onto the filter receiving plate 37, and attach the frame. The lower surface of the body 34 is pressed upward by the clamping piece 40, so that the filter 35 is held between the filter receiving plate 37 and the clamping metal fitting 41.

[Problems to be solved by the invention] However, in the conventional mounting method, one worker supports the filter 35 from below, and the other worker adjusts the fixing position of the filter 35 while attaching the tightening metal fittings. 41, tighten the tightening nut 42, and then install the filter 35. Therefore, the conventional installation method requires at least two workers and requires a
There was a problem that it took a lot of time to adjust the fixing position of item 5.

The present invention is intended to provide a filter mounting device aimed at solving such conventional problems.

[Means for Solving the Problems] The present invention provides a filter unit in which a filter formed by fixing a gasket to the upper peripheral edge of the main body is installed, and the gasket is attached to the upper part of the inner wall of the four circumferences of the casing constituting the filter unit. A tightening fitting formed by protruding a filter receiving plate that presses against the filter, screwing the upper part of the long bolt into a cap nut vertically provided on the filter receiving plate, and having a tightening piece attached to the lower part of the long bolt. In the filter mounting device, the filter can be fixed by inserting a tightening nut into the lower part of the long bolt and tightening the tightening fitting. A hanging piece is provided, and a bent piece is provided by bending the lower part of the hanging piece inward, and a curved surface is provided at the lower end of the bent piece, and a step is provided at the upper end to hold the piece. At the same time as forming a plate, one or a plurality of the holding plates are placed at equal intervals on at least two opposing sides of the filter receiving plate at positions that match the preset installation positions of the filters. The upper side surface of the filter frame facing each of the holding plates has a downwardly inclined tapered surface, and a vertical surface follows the tapered surface, and a horizontal surface follows the vertical surface. When a hanging plate formed by consecutively connecting the bottom surfaces of each of the retaining plates is fixed at the same interval as each of the retaining plates, and when the bottom of the retaining plate is hooked to the stepped portion of the retaining plate, the filter receiving plate and The above problem was solved by providing a gap between the gasket and the gasket.

[Operation] According to the present invention having the above configuration, the filter is simply pushed up from below the casing, the curved surface of each holding plate is matched with the tapered surface of each facing hanging plate, and the filter is further pushed up. By this,
The bottom surface of the hanging plate is hooked to the stepped portion of the holding plate, and the filter is located at a position slightly lower in the vertical direction than the normal mounting position on the holding plate, with a gap between the filter receiving plate and the gasket. The filter is then temporarily fixed without wobbling, and then the filter is tightened and fixed using a tightening fitting using a conventional method.

[Embodiment] An example of the implementation of the present invention will be described in detail with reference to the drawings.The upper part of the inner wall 4 of the 4 circumferences of the casing 3 constituting the filter unit 2 in which the filter 1 is installed and fixed is provided. A filter receiving plate 8 that fixes the filter medium 5 and presses from below a gasket 7 fixedly attached to the upper peripheral edge of the rectangular frame 6 is provided so as to protrude inwardly. The upper part of the long bolt 10 is screwed into the provided cap nut 9, and the lower part of the long bolt 9 passes through a tightening fitting 12 having a tightening piece 11 that presses and tightens the filter 1 upward from below. The long bolt 10 is formed so as to be inserted into the long bolt 10.
A tightening nut 13 is screwed into the lower part of the filter 1 so that the tightening fitting 12 can be pressed and fixed to the lower end surface of the frame 6 of the filter 1.

Then, bend the leaf spring at right angles and add horizontal piece 1.
4 and a hanging piece 15, and the hanging piece 15
A bent piece 16 is provided by bending the lower part 180 degrees inward, and a curved surface 17 is provided at the lower end of the bent piece 16, and a stepped portion 18 is provided at the upper end of the bent piece 16 to hold it. forming a plate 19 and horizontal piece 14 of said retaining plate 19;
is fixed to the lower surface of the filter receiving plate 8. This retainer plate 18 is a filter plate 8 provided in advance on two faces of at least the front and rear or left and right inner walls 4 that face each other among the filter receiving plates 8 provided on the four circumferential inner walls 4 of the casing 3. At a position that matches the set installation position of filter 1,
It is necessary to provide one or more of them at equal intervals, and the position of the stepped portions 18 is determined by the position of the later-described hanging plate 2 attached to the frame 6 of the filter 1.
It is necessary to hook the gasket to the bottom surface 22 of the gasket 3 so that it is located at such a position that there is a gap G between the filter receiving plate 8 and the gasket 7.

On the other hand, of the frame 6 of the filter 1 to be attached to the casing 3, the upper side surface of the frame 6 facing each of the holding plates 19 has a downwardly inclined tapered surface 20, and the tapered surface 20, a vertical surface 21, and a horizontal bottom surface 22 connected to the vertical surface 21, respectively, to form a hanging plate 23, which is attached via a vertical mounting surface 24 on the back thereof.

The operation of the embodiment will be explained.

First, as shown in FIG. 3, hold the filter 1 and push it upward from the bottom of the casing 3. Then, as shown by the imaginary line in FIG. 4, the holding plate 19
The curved surface 17 at the lower end of is the tapered surface 2 of the hanging plate 23.
0, and when the filter 1 is further pushed up using this as a guide, the retaining plate 19 formed by a leaf spring
The hanging piece 15 of the curved surface 1 expands outward, and then the curved surface 1
7 moves to the vertical surface 21, the curved surface 17 separates from the vertical surface 21 and the bent piece 16 comes into sliding contact with it, and finally, when the stepped portion 18 of the bent piece 16 is located at the lower edge of the vertical surface 21. , a retaining plate 1 formed of a leaf spring
9 springs inward, and the bottom surface 2 of the retaining plate 23
2 is located on the step part 18 of the holding plate 19, and the filter 1 is placed on the holding plate 19. Even if the operator releases his/her hand at this stage, the filter 1 will not fall and the filter 1 will not fall. It is temporarily fixed in a position slightly lower than the normal fixed position in the vertical direction.
After that, as shown in FIG. 5, the tightening nut 13 is screwed in the same manner as in the conventional method, and the frame 6 of the filter 1 is pushed up by the tightening fitting 12, and the gasket is crimped onto the filter receiving plate 8. As a result, the filter 1 is fixed.

[Effect of the invention] Since the invention is as described above, the filter can be held by lifting the filter and sliding the curved surface of the holding plate into sliding contact with the tapered surface, vertical surface, and bottom surface of the hanging plate in this order. The step part of the plate is hooked to the bottom of the hanging plate, the filter is placed in this position without moving or wobbling, and then the filter is fixed to the filter clamping fitting using the same method as before. , all can be done by one worker,
The work cost is low, and since the filter is placed on the holding plate, the fixing position of the filter is determined by itself, so there is no need to adjust the position.
Work time can be shortened.

[Brief explanation of the drawing]

Fig. 1 is a partially omitted plan view showing the entire mounting device of the filter of the present invention, Fig. 2 is a plan view of the same filter, and Fig. 3 is a plan view of the filter before the hanging plate is placed on the holding plate. An enlarged sectional view of the main parts showing the condition,
Fig. 4 is an enlarged cross-sectional view of the main part showing the same gasket mounted, Fig. 5 is an enlarged cross-sectional view of the main part showing the gasket crimped to the gasket receiving plate, and Fig. 6 is a conventional filter installation. FIG. 2 is an enlarged cross-sectional view of the main parts of the device. In the figure, 1 is a filter, 2 is a filter unit, 3 is a casing, 4 is an inner wall, 6 is a frame body, 7
is a gasket, 8 is a filter receiving plate, 9 is a cap nut, 10 is a long bolt, 11 is a tightening piece, 12 is a tightening metal fitting, 13 is a tightening nut, 14 is a horizontal piece, 15 is a hanging piece, 16 is a bent piece , 17 is a curved surface, 18 is a stepped portion, 19 is a holding plate, 20 is a tapered surface, 21 is a vertical surface, 22 is a bottom surface, 23 is a hanging plate,
G is between.

Claims (1)

[Scope of utility model registration request] A filter receiving plate is protruded from the upper part of the four circumferential inner walls of the casing constituting the filter unit in which the filter formed by fixing the gasket to the upper peripheral edge of the frame is mounted, and The upper part of the long bolt is screwed into a cap nut vertically disposed on the filter receiving plate, and the lower part of the long bolt is inserted into a fastening fitting formed with a fastening piece, and the lower part of the long bolt is inserted. In a filter mounting device in which the filter can be fixed by screwing a tightening nut into the holder and tightening the tightening fitting, a plate spring is bent at right angles to provide a horizontal piece and a vertical piece, and the vertical piece has a horizontal piece and a vertical piece. A bent piece is provided by bending the lower part inward, and a curved surface is provided at the lower end of the bent piece, and a stepped part is provided at the upper end to form a holding plate, and at least the filter receiving plate is mutually connected to each other. One or more of the holding plates are fixed at equal intervals via horizontal pieces on two facing sides at positions that match the preset installation positions of the filters, while the holding plates facing each of the holding plates are fixed at equal intervals through horizontal pieces. The upper side surface of the frame of the filter has a downwardly sloping tapered surface, and a vertical surface is connected to the tapered surface, and a horizontal bottom surface is connected to the vertical surface. The retaining plate is fixed at the same interval as each of the retaining plates, and when the bottom surface of the retaining plate is engaged with the stepped portion of the retaining plate, there is a gap between the filter receiving plate and the gasket. Filter mounting device consisting of.