JPH0510902Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The invention uses an eccentric cam to press the gasket of a high-performance filter onto the gasket receiving seat of the casing body from below, and This invention relates to a filter mounting device that rotates an adjustment bolt to adjust and fix the pressure of a gasket on a gasket receiving seat.

[Prior Art] Conventionally, a device as shown in FIG. 7 is known that utilizes an eccentric cam to press and fix a high-performance filter to a casing body from below.

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 at a horizontal position in the lower part of the side plate 45 on the other side. Two bearings 47 are fixedly installed at the same interval 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
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 is placed on each mechanical seal so that the two camshafts 50 can be rotated from outside the casing body 42. By rotating the cam handles 53 that are removably screwed in on the outside of the filter 49, the respective camshafts 50 are rotated, and the protruding portions of the eccentric cams 51 rotate 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 the front and rear ends upwards.
4, the filter receiving seat 4 of the casing body 42
3 to be tightly fixed by pressing. When the high-performance filter 46 is to be removed, each cam handle 53 is rotated in the opposite direction to release the pressing state of the high-performance filter 46 by the eccentric cam 51 and removed.

[Problems to be Solved by the Invention] However, in the conventional filter mounting device described above, fine adjustment of the degree of contact between the filter gasket 54 and the filter receiving seat 43 on the casing body 42 side is difficult due to the presence of two camshafts 50. There is a problem that it is not easy and requires technology, and the mechanical seal 49 is more expensive than the high performance filter 4.
There was a problem that two pieces of 6 were required for each set.

It is an object of the present invention to provide a filter mounting device that solves these conventional problems.

[Means for Solving the Problems] The present invention has a structure in which a high-performance filter is installed in the upper side wall of the casing body, which is equipped with an inspection port for installing a high-performance filter inside.
A casing body is formed by protruding a gasket receiving seat that is crimped onto the gasket, and guide pieces are fixed oppositely to the front and rear of the inner surfaces of the left and right side walls parallel to the insertion direction of the high-performance filter of the casing body, respectively. A shaft is fixedly supported by passing through the upper and lower plates of the guide piece, and a holding plate is loosely inserted into each of the shafts, and the two guide angles on the holding plate are made parallel to the left and right side walls. A push spring is inserted into each shaft between the upper plate and the holding plate of each guide piece, while a camshaft is installed at the center of the lower surface of the front and rear side walls of the casing body, and the tip of the camshaft is attached to the rear side wall. The camshaft is rotatably supported by a bearing fixed to the inner surface, and its base end is rotatably supported through a mechanical seal fixed to the outer surface of the front side wall. An eccentric cam is fixed to the upper surface of the eccentric cam, and a push-up body is provided with an adjustment bolt that touches the upper surface of the eccentric cam to adjust the pressing strength against the guide angle. The above problem was solved by adopting a structure in which the front and rear bottom surfaces of each guide angle are connected and fixed by interlocking rods.

[Operation] According to the present invention having the above configuration, the guide angle is raised or lowered via the push-up body by the rotating operation of the camshaft, the high-performance filter on the guide angle is raised, and the gasket is moved to the gasket receiving seat. Crimp or lower the
After the high-performance filter has been raised, turn the adjustment bolt on the push-up body to adjust the strength of the compression of the high-performance filter gasket to the gasket receiving seat.

[Example] An example of implementing the present invention will be explained in detail with reference to the drawings. Four side walls 2 are arranged in a rectangular frame shape at the top and bottom, respectively, so that the high-performance filter 1 can be installed inside. Openings 3 and 4 are provided, and an inspection port 5 for inserting and inspecting the high-performance filter 1 is opened in the front side wall 2a, an opening/closing lid 6 is attached to the inspection port 5, and the four side walls are A casing body 10 is formed by protruding a gasket receiving seat 9 on the inner periphery of the upper part of the filter 2 so as to be press-fitted to a gasket 8 provided around the outer periphery of the upper surface of the side frame 7 of the high performance filter 1.

Guide pieces 13 each having a U-shaped cross section and having an upper plate 11 and a lower plate 12 are installed and fixed in front and behind the inner surfaces of the left and right side walls 2b and 2c, which are parallel to the insertion direction of the high-performance filter 1 of the casing body 10, respectively. The shaft 14 is fixedly supported by passing through the upper plate 11 and lower plate 12 of each guide piece 13, and the horizontal plate 15
An L-shaped holding plate 1 formed by positioning the
6, and the shaft 14 is loosely inserted into the horizontal plate 15, and the high-performance filter 1 is inserted through the inspection hole 5 onto the upper surface of the horizontal plate 15 of each of the front and rear holding plates 16 located on each of the side walls 2b, 2c. The lower portions of the front and rear surfaces of the two guide angles 17, which also serve as guides and mounting tables, are fixed, and each guide angle 17 is arranged parallel to the left and right side walls 2b, 2c. A push spring 18 is inserted into each shaft 14 between the lower surface of the upper plate 11 and the horizontal plate 15 of the holding plate 16, and the pushing spring 18 always keeps the holding plate 16
is pressed downward. Therefore, each guide angle 17 fixed to the holding plate 16 is also pressed downward.

In the figure, reference numeral 19 is a stopper plate supported and fixed to the rear portion of each guide angle 17, and prevents further insertion of the high performance filter 1.

At the center of the lower surface of the front and rear side walls 2a and 2d of the casing body 10, there is a camshaft 20, and a bearing 2 whose tip is fixed to the inner surface of the rear side wall 2d.
A mechanical seal 22 is pivotally supported by the mechanical seal 1 and has its base end fixed to the outer surface of the front side wall 2a.
An eccentric cam 23 is fixed to the center of the camshaft 20, and a cam handle 2 for rotating the camshaft 20 is attached to the proximal protruding end of the camshaft 20.
4 is removably screwed in. In addition, there are four interlocking rods 2 on the front and bottom surfaces of each guide angle 17.
A push-up body 26 is installed in which the upper end of each interlocking rod 25 is fixed, and the lower end of each interlocking rod 25 is fixed, and the lower surface of the push-up body 26 is grounded on the eccentric cam 23.

As shown in FIG. 6, this push-up body 26 has a concave bottom plate 27 and a reversely concave cover plate 28 that can be covered with the bottom plate 27 facing each other, and has four upper surfaces of the cover plate 28. The lower ends of each of the interlocking rods 25 are fixed to the side edges, and two holes 29 are bored at a predetermined interval in the cover plate 28 so that the guide bolts 30 can be loosely inserted thereinto. A downward annular projection 31 surrounds each hole 29 on the lower surface of the
a bolt shaft 3 having a circumference thereof and an upward annular projection 32 having the same diameter as the downward annular projection 31 fixed on the upper surface.
3 is provided with a screw hole 34 into which the guide bolt 30 is screwed, and an adjustment bolt 35 formed therein is screwed into a screw hole 36 drilled in the bottom plate 27, and the downward annular projection 31 and Upward annular projection 3
The push springs 37 that fit into the inner circumferential walls of 2, respectively,
A fixing nut 38 is screwed into the adjusting bolt 35 and a fixing nut 38 is screwed into the lower surface of the guide bolt 30. Loosen the nut 39, rotate the adjusting bolt 35 as appropriate to move it up and down, compress or extend the push spring 37, and connect the cover plate 28 with the push spring 37 via the four interlocking rods 25. After adjustment, the fixing nuts 38 and 39 are tightened again to bring them into close contact with the upper and lower surfaces of the bottom plate 27 to prevent rotation of the adjusting bolt 35, and the pushing force after adjustment is adjusted. The pressing force of the spring 37 is kept constant.

Next, the operation of the embodiment of the present invention will be explained.

First, the cam handle 24 is rotated, the eccentric cam 23 fixed to the camshaft 20 is rotated, and the protruding portion 2 is rotated as shown in FIGS. 1 and 2.
When 3a is moved downward, the push-up state of the push-up body 26 by the protrusion 23a is released, and at the same time, the push spring 18 is compressed and the guide angle 1 is moved downward.
7 is also released, and the guide angle 17 is lowered by the elastic force of the push spring 18. In this state, open the opening/closing lid 6 of the casing body 10, place the high-performance filter 1 on the bottom plate 17a of the guide angle 17 through the inspection port 5, and use the guide angle 17 as a guide to install the high-performance filter 1. 1 is pressed and moved, brought into contact with the stopper plate 19 and stopped, and then the cam handle 24 is rotated and the protrusion 23a of the eccentric cam 23 is pushed up as shown in FIGS. 3 and 4. Push up the bottom plate 27 of the body 26 to raise the entire push-up body 26,
Accordingly, the guide angle 17 is pushed up via the interlocking rod 25, and the gasket 8 of the high performance filter 1 placed on the guide angle 17 is pressed onto the gasket receiving seat 9.

However, it may not be possible to hold each guide angle 17 parallel to each other and install the high-performance filter 1 placed thereon in parallel only by pushing up the cam 23. Since the push-up height of each guide angle 17 and the high-performance filter 1 is constant, the strength of the pressure bonding of the gasket 8 to the gasket receiving seat 9 cannot be adjusted. Therefore, the adjustment bolt 35 of the push-up body 26 is rotated as appropriate to move it up and down, and the push spring 37 is compressed or expanded, and the cover plate 28 by the push spring 37 and the four interlocking rods 25 are connected to each other. By adjusting the pressing strength of each connected guide angle 17, the high-performance filter 1
The pressure strength of the gasket 8 against the gasket receiving seat 9 is adjusted. Furthermore, since the push-up body 26 and each guide angle 17 are connected and supported by the four interlocking rods 25, the upward pressing force by the push-up body 26 can be maintained at an average level.

When the high performance filter 1 is to be removed, the operation described above can be reversed.

[Effects of the invention] Since the present invention is as described above, the high-performance filter is raised or lowered by the rotational operation of the camshaft, and the raising or lowering is easy because there is only one camshaft. After the performance filter has been raised, the adjustment bolt on the push-up body can be turned to adjust the guide angle and the pressure strength of the high-performance filter by the push-up body, and therefore the pressure strength of the gasket against the gasket receiving seat can be adjusted. In addition, even if problems arise with compression reaction force or cushioning properties due to aging of the gasket itself, the guide angle can be moved further upwards by rotating the adjustment bolt.
By firmly pressing the gasket onto the gasket seat, there is no risk of contaminated air leaking.
It has many advantages, such as requiring only one expensive mechanical seal and not requiring the pressing force of a powerful eccentric cam.

[Brief explanation of drawings]

Figure 1 is a vertical front view showing the high-performance filter in a lowered state, Figure 2 is a vertical side view of the same, Figure 3 is a vertical front view showing the high-performance filter in a raised state, and Figure 4 is a vertical side view of the same. 5 is a cross-sectional plan view, FIG. 6 is an enlarged exploded front view with a part of the push-up body cut away, and FIG. 7 is a longitudinal sectional side view showing a conventional example. In the figure, 1 is a high performance filter, 2 is a side wall, 5 is an inspection port, 8 is a gasket, 9 is a gasket receiving seat, 10 is a casing body, 13 is a guide piece, 14 is a shaft, 16 is a holding plate, and 17 is a guide Angle, 18 is a push spring, 20 is a camshaft, 2
1 is a bearing, 22 is a mechanical seal, 23 is an eccentric cam, 25 is an interlocking rod, 26 is a push-up body, and 35 is an adjustment bolt.

Claims (1)

[Scope of utility model registration request] A casing body is formed by protruding from the upper side wall of the casing body which is provided with an inspection port into which a high-performance filter is installed, and a gasket receiving seat that is crimped onto the gasket is formed, and the insertion direction of the high-performance filter of the casing body is A guide piece is fixed oppositely to the front and back of the inner surfaces of the left and right side walls parallel to the above, and a shaft is pivotally fixed through the upper and lower plates of the guide piece, and a retaining plate is loosely inserted into each of the shafts. , and the two guide angles on the holding plate are fixed so as to be parallel to the left and right side walls, and a pressure spring is inserted into each shaft between the upper plate and the holding plate of each guide piece, while the casing At the center of the lower surface of the front and rear side walls of the main body, a camshaft has its tip supported by a bearing fixed to the inner surface of the rear side wall, and its base end fixed to the outer surface of the front side wall. The eccentric cam is rotatably supported by penetrating the mechanical seal, and an eccentric cam is fixed to the center of the camshaft, and the eccentric cam is brought into contact with the top surface of the eccentric cam to adjust the pressing strength against the guide angle. A filter mounting device comprising a push-up body equipped with an adjustment bolt for adjusting the height, and the upper surface of the push-up body and the front and rear lower surfaces of each guide angle are connected and fixed by interlocking rods.