JPH0516282B2 - - Google Patents

Description

[Detailed Description of the Invention] [Prior Art] Conventionally, as a device for crimping and fixing a high-performance filter to a casing body, as shown in Fig. 5, the casing body is pressed upward by an eccentric cam. Something that fixes is known.

That is, a filter seat 43 is provided around the upper part of the casing main body 42 which has an inspection port 41 on one side, and an opening/closing lid 44 is attached to the inspection port 41, and the filter seat 43 is installed in a horizontal position in the lower part of the side plate 45 on the other side. Two bearings 47 are fixedly installed with the same spacing as the front and rear width of the high-performance filter 46, while the outer surface of a vertical plate 48 fixed vertically below the inspection port 41 corresponds to each of the bearings 47. 2 mechanical seals in position 4
9, two camshafts 50 are rotatably supported between each bearing 47 and each mechanical seal 49, and two camshafts 50 are fixedly installed at the same position as the left and right width of the high performance filter 46 of each camshaft 50. The eccentric cams 51 are fixed one by one, and
1, the front and rear ends of both side frames 52 of the high-performance filter 46 are placed on top of the casing body 42, and the high-performance filter 46 is placed on each mechanical By rotating the cam handles 53 that are removably screwed in on the outside of the seal 49, the respective camshafts 50 are rotated, and the protruding portions of the eccentric cams 51 engage the side frames 52 of the high-performance filter 46. The gasket 5 is fixed to the four circumferences of the upper surface of the high-performance filter 46 by pushing up the front and rear ends of the gasket 5.
4, the filter seat 43 of the casing body 42
It is formed so that it can be pressed tightly and fixed.
And when removing the high performance filter 46,
By rotating each cam handle 53 in the opposite direction, the eccentric cam 5
The high-performance filter 46 is released from the pressed state by 1 and removed.

[Problems to be Solved by the Invention] However, in the conventional filter mounting device described above, the high-performance filter 46 is raised by rotating the cam handle 53 that is removably screwed into the outer surface of the casing body 42. gasket 54
The high-performance filter 46 is fixed by being pressed against the filter seat 43, and the high-performance filter 46 is fixed by operating the cam handle 53 from the outside.
Two camshafts 50, two mechanical seals 49, and four eccentric cams 51 are required, and there are problems in that the entire device is complicated, has a large number of parts, and is expensive. Due to the high air pressure protruding outside the casing body 42, there is a risk of contaminated air leaking from the camshaft 50 and the mechanical seal 49, especially when the air pressure is high. There were problems such as the need to replace parts due to wear and other problems.

The present invention aims to provide a filter device aimed at solving such conventional problems.

[Means for Solving the Problems] The present invention provides two guide rails for inserting and mounting a high-performance filter on the left and right side walls of a casing body provided with an inspection port, and The outer edge of a frame-shaped rubber canvas is circumferentially fixed above, and a partition frame that presses against the gasket of the high-performance filter is integrally connected and fixed to the inner edge of the rubber canvas. The above-mentioned problem has been solved by providing a control lever connected to a tension spring and facing each other, and by connecting the rear end of the control lever and the partition frame with a link.

[Function] According to the present invention having the above configuration, the high-performance filter is placed on the guide rail through the inspection port, pressed and inserted, installed in a predetermined position, and the operation lever is manually operated through the inspection port again. The partition frame fixed to the casing body via the rubber canvas is lowered by operating the tension spring and using the degenerating force, and the lower edge of the partition frame is pressed into contact with the gasket of the high-performance filter.

[Embodiment] An example of the implementation of the present invention will be described in detail with reference to the drawings. Four side walls 2 are arranged in a row in a rectangular frame shape, and are arranged at the top and bottom, respectively, so that the high-performance filter 1 can be mounted inside. Openings 3 and 4 are provided, and an inspection port 5 for inserting, installing, or inspecting the high-performance filter 1 is opened in the front side wall 2a, and an opening/closing lid is provided in the inspection port 5. 6 is attached to form the casing body 7.

Inverted L-shaped angles 8 are fixed oppositely to the front and rear of the inner surfaces of the side walls 2a and 2b, which are perpendicular to the insertion direction of the high-performance filter 1 of the casing body 7, and are fixed to the respective side walls 2a and 2b. On the upper surface of each angle 8 provided, there is a mounting plate 2 which serves as a guide and a mounting table when inserting the high-performance filter 1 through the inspection port 5.
The lower portions of the front and rear surfaces of the L-shaped guide rails 9 of the book are fixed, and each guide rail 9 is attached to a high-performance filter 1.
The left and right side walls 2c, 2 with an interval corresponding to the width of
A stopper 10 is protruded from the rear of each guide rail 9 to prevent the high-performance filter 1 from being inserted any further. The rear lower end of No. 1 comes into contact and stops. In addition,
Although there is no particular limitation, preferably steel rods 9b each having a circular cross section are fixed on the sliding surface 9a of each guide rail 9 in order to ensure smooth sliding of the high performance filter 1 on the guide rail 9. It is recommended that you do so. This reduces the coefficient of friction and makes it easier to insert the high-performance filter 1.

Moreover, each side wall 2a, 2b of the casing body 7,
A rectangular frame made of silicone rubber or synthetic rubber made from chloroprene (manufactured by DuPont America and sold under the trade name "Neoprene", hereinafter referred to as "Neoprene rubber") is placed on the upper part of the inner surfaces of 2c and 2d. Rubber canvas 1 formed into a shape
1 is integrally fixed to each side wall 2a, 2b, 2c, 2d so that the outer edge thereof is substantially perpendicular to each side wall 2a, 2b, 2c, 2d.

The method for fixing the outer edge of the rubber canvas 11 is not particularly limited, but it is preferable to fix the outer edge of the rubber canvas 11 by using an L-shaped mounting plate 12 circumferentially fixed to the upper inner surface of each of the side walls 2a, 2b, 2c, and 2d. It is recommended to position the outer edge of the rubber canvas 11 on the flat plate 13, overlap the presser plate 14 from above, and insert the bolt 15 to clamp and fix the base of the rubber canvas 11. and the rubber canvas 1
The side frame 16 of the high performance filter 1 is attached to the inner edge of the filter 1.
An outward flange 19 at the upper end of a rectangular partition frame 18 made of a steel plate is integrally fixed to a gasket 17 fixedly provided above, and the lower edge 18a is pressed against the gasket 17. The method for fixing the inner edge of the rubber canvas 11 is as follows:
Although not particularly limited, it is preferable that the rubber canvas 1 be placed on the outward flange 19 of the partition frame 18.
It is recommended to position the front part of the rubber canvas 11, overlap the presser plate 20 from above, insert the bolt 21, and clamp and fix the inner edge of the rubber canvas 11.

Note that the rubber canvas 11 made of silicone rubber is suitable for use when filtering air containing acids, gases, or chemicals because silicone rubber has excellent acid resistance, gas resistance, and chemical resistance. ,
Further, the rubber canvas 11 made of neoprene rubber is used when ordinary air is filtered.

Further, locking pins 23 for locking the upper portions of the tension springs 22 are fixed slightly below the mounting position of the rubber canvas 11 on the front side of the inner surfaces of the left and right side walls 2c and 2d, respectively, and at the front ends thereof. The rear side of the operating lever 25, to which the operating grip ball 24 is fixed, is pivoted so that it can freely swing around a pivot pin 26 fixed to the inner surfaces of the left and right side walls 2c and 2d, respectively, facing each other. In addition to supporting the operation lever 2
A link 29 is attached between the rear end portion 25a of the partition frame 18 and the center portions of the left and right side walls 18c, 18d of the partition frame 18, with both ends pivotally supported by pins 27, 28, respectively. A latching pin latches and fixes the upper part of the tension spring 22 to the latching pin 23, and implants and fixes the lower part of the tension spring 22 to a mounting plate 30 stretched at the middle part of the operating lever 25. 31 so that the front part of the operating lever 25 is always pulled upward by the tension spring 22, and the inner surfaces of the left and right side walls 2c and 2d in front of the tension spring 22 have lower surfaces, respectively. A lever receiver 33 is provided with a locking recess 32 for locking the operating lever 25 and preventing its upward movement. It is located in a protruding manner. Therefore, when the operating lever 25 is pushed down against the tension spring 22 and the operating lever 25 is engaged with the latching recess 32 of the lever receiver 33, the operating lever 25 is moved as shown in FIG. It stops in a downward slope from the front side to the rear side. In this state, the rear end portion 25a of the operating lever 25 is located at the lowest position, so the link 29 pushes down the partition frame 18, and the lower end edge 1
8a is pressed against the gasket 17 of the high performance filter 1. Further, it is recommended that the partition frame 18 be set in advance so that when the partition frame 18 moves downward and the lower edge 18a comes into pressure contact with the gasket 17, the rubber canvas 11 can maintain a horizontal state.

Next, the operation of the embodiment of the present invention will be explained. When inserting the high-performance filter 1 through the inspection port 5, first push down each operating lever 25 against the tension spring 22, and move the operating lever 25 into the lever receiver 33.
When the operating lever 25 is released from the latching recess 32 to release the latching state and maintain the operating lever 25 in a substantially horizontal state as shown in FIG.
a moves upward using the pivot pin 26 as a fulcrum,
As the partition frame 18 is pushed upward via the link 29, the rubber canvas 11 is slightly curved upward. At this stage, the high-performance filter 1 is placed on the guide rail 9 through the inspection port 5, moved rearward until it comes into contact with the stopper 10 and stopped, and the operation lever 25 is moved again to the latching recess 32. , the rear end 25a of the operating lever 25 moves downward using the pivot pin 26 as a fulcrum, pushing down the partition frame 18 via the link 20, and the lower edge 18a of the partition frame 18 rises. The installation work of the high performance filter 1 is completed by pressing the gasket 17 of the high performance filter 1 and maintaining the rubber canvas 11 in a horizontal state.

On the other hand, when removing the high-performance filter 1, the operation described above can be reversed.

[Effects of the Invention] Since the present invention is as described above, the work of inserting the high-performance filter into the casing body and the work of pressing the lower edge of the partition frame against the gasket by operating the operating lever are all performed through the inspection port. The camshaft and
No cams or mechanical seals required
The entire device is not complicated, has a small number of parts, and is inexpensive. In addition, since there is no configuration in which the camshaft is operated from outside the casing body as in the past, there are no welding points, and the problem of leakage of contaminated air from mechanical seals and the shaft is eliminated. It also does not occur.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional front view showing the device of the present invention with a high-performance filter installed, Fig. 2 is a longitudinal sectional side view, Fig. 3 is a cross-sectional plan view, and Fig. 4 shows the device before the high-performance filter is installed. FIG. 5 is a vertical side view showing a conventional mounting device. In the figure, 1 is a high-performance filter, 2 is a side wall, 5 is an inspection port, 7 is a casing body, 9 is a guide rail, 11 is a rubber canvas, 17 is a gasket,
18 is a partition frame, 22 is a tension spring, 25 is an operating lever, and 25a is a rear end portion.

Claims (1)

[Claims] 1. Two guide rails for inserting and mounting a high-performance filter are fixedly installed on the left and right side walls of the casing body provided with an inspection port, and a frame-shaped frame is installed above the four circumferential side walls of the casing body. The outer edge of the rubber canvas is circumferentially fixed, and a partition frame that presses against the gasket of the high-performance filter is integrally connected and fixed to the inner edge of the rubber canvas, and is further connected to the left and right side walls of the casing body with tension springs. A filter mounting device characterized in that operating levers are provided facing each other, and the rear end of the operating lever and a partition frame are connected by a link. 2. The filter mounting device according to claim 1, wherein the rubber canvas is made of silicone rubber. 3. The filter mounting device according to claim 1, wherein the rubber canvas is made of synthetic rubber made from chloroprene.