JP3240493B2 - Strainer fixture - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for mounting a strainer in each hole of a support plate for supporting a packing material in a filtration tower, an ion exchange tower, and the like, and a method of mounting various parts in holes of a support plate in various other facilities. Regarding the fittings used.

[0002]

2. Description of the Related Art Generally, in an ion exchange tower or the like, a perforated plate (supporting floor plate) having a large number of holes for supporting ion-exchange resin particles from below is stretched at the bottom of the column. A cup-shaped strainer is attached to the upper surface of each hole in a cover state. Conventionally, as shown in FIGS. 5 and 6, a head (d) of a bolt shaft (c) is attached to an end of a bolt, as shown in FIGS.
A bolt (a) provided with a rectangular, low-height angular shaft portion (e) having two opposite sides equal to the diameter of the bolt shaft portion and the other two sides slightly longer than the bolt shaft portion; And a rectangular plate-shaped anchor plate (b) having a long hole (f) with which the square shaft portion (e) is to be non-rotatably engaged. In the state where the anchor plate (b) fitted in a) is locked to the lower peripheral portion of the hole (h) of the eye plate (g), the bolt (a) protruding from the upper surface of the hole (h) is attached to the anchor plate (b). The one in which a strainer (i) is fitted and fastened by a nut (j) via a strainer sheet (l) and a gasket (m) is used.

[0003]

[0006] However, in the conventional device described above, under the upper from via holes (h) batten bolt anchor plate which is fitted in (a) (b) a batten (g) In order to pass through the side, it is necessary to perform a troublesome operation in which the worker inserts the anchor plate (b) into the hole (h) while holding the anchor plate (b) in an inclined state as shown in FIG. Further, in the conventional anchor plate (b), as shown in FIGS. 5 and 6, the opposite long sides of the plate are provided at both ends, and a substantially rectangular shape which can be inserted into the hole (h) of the eye plate (g). Since the positioning plates (K) and (K) are projected in parallel with the longitudinal direction of the anchor plate, the positioning plates (K) and (K) are not correctly inserted into the holes (h) and inclined as shown in FIG. In many cases, the nuts (j) are tightened as they are, and in this case, the positioning plates (K) and (K) have holes (h) due to vibrations caused by the operation of the ion exchange tower.
When it enters the home position, the strainer (i) is loosened and a gap is formed between the strainer (i) and the perforated plate (g). . Furthermore, when the anchor plate (b) is taken out from the eye plate (g) for disassembly or replacement of parts after the strainer (i) is attached, after loosening the nut (j), the worker removes the wire or the like. An extremely complicated and skillful work of inserting the wire into the hole (h) and slowly pulling the anchor plate (b) upward through the hole (h) while holding the anchor plate (b) in the inclined state as shown in FIG. Had to do.

[0004] The first invention of the present application is to facilitate insertion of an anchor plate engaged with a bolt downward through a hole from above a perforated plate, and easy pulling out from below the perforated plate through a hole. With issues as

[0005] The present second invention, in addition to the above problems, an anchor plate which is inserted under the batten, and when performing fastening of strainer remain vertical threaded bolt is inclined to the bore, the It is an object to correct an anchor plate and a bolt to a correct position.

[0006]

Means for Solving the Problems As a means for solving the above-mentioned problems, the first invention of the present application is directed to a method for packing in an ion exchange tower or the like.
Cup-shaped strainer on the top of each hole of
Of the tray with the tray
Bolt to be passed through the center of the nut and the bolt
It consists of a that the anchor plate, the bolt, the head I end of the bolt shaft portion, generally transverse surface provided a rectangular square shaft portion, angular shank the bolt shank one of the opposite side edge portions A locking step portion is formed on each side of the bolt shaft portion so as to radially protrude therefrom and capable of holding an anchor plate, and the anchor plate is provided at a central portion of a substantially rectangular anchor plate main body.
An elongated hole in which the square shaft portion is non-rotatably engageable is provided in parallel with the longitudinal direction of the anchor plate main body, and the elongated hole enables the anchor plate to be displaced to an inclined position with respect to the bolt and to the inclined position. in the the hole edge of the long hole is formed to a length that can engage with the engaging step portion, it proposes fitting of strainer,

[0007] The present second invention, the above-mentioned anchor plate in the first invention, the opposing long side Kanagawa sides on the anchor plate body, left and right can be inserted into the hole of the batten to mount the strainer A substantially angle-shaped correction guide plate having a guide hypotenuse is provided so as to project in parallel with the longitudinal direction of the anchor plate body.
To propose a fixture of the strainer.

The "substantially mountain shape" of the straightening guide plate in the second invention includes a triangle, a trapezoid, and a semicircle.
Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0009]

1 and 2, a bolt (1) has a rectangular shaft section (4) having a rectangular cross section and a relatively high height at the end of the head (3) of the bolt shaft section (2). Is provided in a continuous state with the head (3), and the short side in the cross section of the square shaft portion (4) is made equal to the diameter of the bolt shaft portion (2) as shown in FIG. By making the long side considerably longer than the diameter of the bolt shaft portion (2), both ends in the long side longitudinal direction are respectively projected radially from the bolt shaft portion (2), and the bolt shaft is formed on the upper surface of the protrusion. Locking step portions (5) and (5) are formed at right angles to the portion (2).

The anchor plate (6) has an elongated hole (8) formed in the center of a rectangular anchor plate body (7) in parallel with the longitudinal direction of the anchor plate body (7). 8)
Is formed in a rectangular shape in which the square shaft portion (4) can be non-rotatably engaged, and the rectangular shaft portion (4) has a long hole (8).
The anchor plate (6) engaged with the bolt (1) can be displaced to an inclined position with respect to the bolt (1), and is in the inclined position, and the edge of the elongated hole (8) is engaged with the locking step (5). The long side of the long hole (8) is considerably longer than the long side of the square shaft part (4) so as to be able to stop.

Although the anchor plate (6) may be used with the structure described above, in the present embodiment, the anchor plate (6) is further provided with a correction guide plate. As shown in FIGS. 3 and 4, the opposite long sides on the anchor plate main body (7) protrude at right angles from the both ends of the anchor plate body (7), and the straightening guide plates (9), (9) (9) is the guide hypotenuse (10) to the left and right in this example,
A trapezoid having (10), wherein the strainer (S)
Is formed in such a size that it can be inserted into the hole (H) of the eye plate (P) to be attached.

The operation of the above example is as follows. First, when installing the strainer (S), the anchor plate (6)
Through the slot (8) of the bolt (1) with the square shaft (4)
And the tip of the bolt (1) penetrates through the center of the cap of the strainer (S), and the double nut (1
1) and (11) are temporarily screwed. The bolt (1) with the anchor plate as described above is appropriately inclined as shown in FIG.
Alternatively, the anchor plate (6) is pinched by a finger in a state of being held vertically, and is tilted with respect to the bolt (1) while sliding the elongated hole (8) in the square shaft portion (4). The upper hole edge of 8) is locked on the locking step (5) as shown in FIG. With this locking, the anchor plate (6) is held in an inclined state even if the finger is released while the bolt (1) is in a vertical state, so that the upper part of the bolt (1) is gripped and inclined. The lower end of the bolt (1) together with the anchor plate (6) can be inserted below the eye plate (P) through the hole (H). Then, when the bolt (1) is vertically held and lightly shaken up and down, the anchor plate (6) is disengaged from the locking step (5) and is held horizontally by the head (3). In this case, since the height of the square shaft part (4) is considerably increased, when the anchor plate (6) is inclined by being locked to the locking step (5), the anchor plate (6)
Can be inclined to a considerable angle required to pass through the hole (H), and at the time of the inclination, the wide side surface of the substantially half of the angular shaft portion (4) is elongated by the long hole (8) of the anchor plate (6). ), The anchor plate (6) is held in a state in which it is difficult to detach from the square shaft portion (4), so that the vibration causes the anchor plate (6) to be removed from the locking step (5) and immediately Can be returned to horizontal.

Next, the bolt (1) is pulled upward to lock the anchor plate (6) on the lower peripheral portion of the hole (H), and the strainer (S) is moved to a position where the strainer (S) covers the hole (H). The bolt (1) is installed by the double nuts (11) and (11) with the seat (12) and the gasket (13) interposed therebetween.
And tighten the strainer (S) as shown in FIG.

If the tightening of the strainer is started with the anchor plate (6) and the bolt (1) being inclined, the straightening guide plate (9) for the anchor plate (6). , (9) are lifted upward while contacting the lower edge of the hole (H) with the guide oblique sides (10), (10). 1) is moved and corrected to a normal position perpendicular to the center of the hole (H).

When removing the bolt (1) for disassembly, replacement of parts, etc., loosen the double nuts (11), (11) and move the strainer (S) to the tip of the bolt (1). The edge of the long hole (8) is engaged with the locking step (5) by vertically gripping the bolt (1) and slightly shaking it up and down.
The anchor plate (6) can be held in an inclined state by being locked on the upper side. After displacing in this way, bolt (1)
The lower end of the bolt together with the inclined anchor plate (6) is pulled out through the hole (H) onto the eye plate (P).

[0016]

According to the present fixture strainer of the first invention according to the present invention, it is possible to hold the anchor plate in the inclined state by locking the hole edge of the long hole in the locking stepped portion of the bolt, it the engaged volts lower end of the anchor plate from the batten on the batten downward through the hole, and readily able to be inserted and removed from the bottom batten to batten up through the hole by,
Mounting strainer is to be achieved the efficiency of the removal work. According to the fixture of the strainer of the present second invention, the first addition to the effect of the invention, the batten strainer according inserted through bolt bolt remains tilted to the anchor plate and holes that are inserted under the fastening When the attachment is performed, the guide oblique side of the angle-correcting guide plate comes into contact with the lower edge of the hole so that the anchor plate and the bolt can be automatically corrected to the correct position with the fastening.

According to another aspect of the invention related to the present invention, in addition to the structure described in the first or second aspect, the height of the angular shaft portion is formed to be considerably high, so that the edge of the long hole of the anchor plate is formed. When the anchor plate is locked to the locking step portion, the anchor plate is inclined at a considerable angle, and at the time of the inclination, the side surface of the square shaft portion penetrating through the long hole of the anchor plate is considerably widened so that the anchor plate is separated from the square shaft portion. Some inventions make it difficult to separate.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional front view showing a state in which a strainer is attached by a fitting of the present invention.

FIG. 2 is the same view as in the process of attaching a strainer with the fixture of the present invention.

FIG. 3 is a side view of a lower end portion of a bolt engaged with an anchor plate.

FIG. 4 is a sectional view taken along line IV-IV of FIG. 1;

FIG. 5 is a vertical sectional front view showing a state in which a strainer is attached with a conventional attachment.

FIG. 6 is the same view as in the middle of attaching a strainer with a conventional attachment.

FIG. 7 is a drawing showing a state in which a strainer is mounted with an anchor plate inclined with a conventional mounting tool.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bolt 2 Bolt shaft part 3 Head 4 Square shaft part 5 Locking step part 6 Anchor plate 7 Anchor plate main body 8 Long hole 9 Straightening guide plate S Strainer P Eye plate H hole

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B01D 29/11-29/37 B01D 35/30 F16B 35/04

Claims (2)

(57) [Claims] 1. A method for supporting a filler in an ion exchange tower or the like.
Cover the cup-shaped strainer on the top of each hole
In the fixture to be mounted in the center, the center of the strainer
Bolts to penetrate the part and anchors held by the bolts
Consists of a plate, the bolt, the head I end of the bolt shaft portion, generally transverse surface provided a rectangular square shaft portion, angular shank emit one opposing side edge portions of the bolt shaft portion Locking bolts are formed on both sides of the bolt shaft portion so as to protrude in the direction, and the anchor plate is formed at the center of a substantially rectangular anchor plate body. A slot is provided parallel to the longitudinal direction of the anchor plate body so that the anchor plate can be displaced to an inclined position with respect to the bolt. the hole edge of the long hole is formed to a length that can engage with the engaging step portion, fitting of the strainer. Wherein the anchor plate, the opposite long side Kanagawa sides on the anchor plate body, having a lateral guide oblique side of insertable into a hole of <br/> Rubeki th plate fitted with a strainer substantially chevron straightening guide plate are parallel to protrude to the longitudinal direction of the anchor plate body, fitting strainer according to claim 1.