JPH1072091A - Structure for opening and closing tank cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily open and close a cover and reduce a space required for opening and closing the cover. SOLUTION: The structure is provided to open and close a cover 2, which closes an opening of an end surface of a horizontal tank 1. The structure comprises a supporting part 3 which is mounted on the tank 1 so as to be rotatable about a vertical axis, a slide arm 4 which is supported by the part 3 so as to be horizontally slidable and from an end of which the cover 2 is suspended, and a fixing member 6 to fix the cover 2 to the tank 1. In order to open the closed cover 2, the fixing member 6 is disengaged and the slide arm is caused to slide thereby to pull the cover forward and under such conditions, the supporting part is rotated to move the cover to the side of the tank. Compared with a cover, which is attached by means of a hinge at the side of the tank, the influence of the clearance and weight of the cover on the opening and closing properties can be reduced and further a space required on the side of the tank when the cover is opened can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tank used for a filter or the like, and more particularly to a structure for opening and closing a lid of a horizontal tank.

[0002]

2. Description of the Related Art Generally, as a structure for opening and closing a lid of a horizontal tank, a lid is supported by a hinge provided on a side surface of the tank and the lid is rotated about a hinge axis. Also,
In order to prevent damage to an O-ring or the like for sealing the lid, there is also provided one having a hinge configured so that the lid can be slightly moved in the axial direction of the tank when opening and closing the lid.

[0003]

However, in the above-mentioned structure, the lid is inclined even though it is minute due to the clearance at the hinge portion. When the lid is heavy, opening and closing the lid requires considerable force. If the tank has a built-in cartridge type filter member, it is necessary to replace the filter member periodically. In this case, the lid must be opened so that the lid can be replaced. Although it is in the way, a large space is required on the side of the tank so that the lid can be opened widely. In addition, the lid is fixed to the right opening or the left opening.

[0004] The present invention has been made in view of such a point, and an object of the present invention is to provide a tank which can easily open and close a lid and requires a small space for opening and closing the lid. An object of the present invention is to provide a lid opening / closing structure.

[0005]

According to the present invention, there is provided an opening / closing structure for a lid for closing an opening at one end face of a horizontal type tank, which is installed on the tank and is rotatable about a vertical axis. It is characterized in that it comprises a support portion, a slide arm that is freely supported by the support portion in the horizontal direction and that suspends the lid from one end, and a fixing member for fixing the lid to the tank. doing. To open the closed lid, release the fixing by the fixing member, pull the lid forward by sliding the slide arm, and rotate the support in this state to position the lid on the side of the tank. Yes, the operation of closing the lid is performed in the reverse order. The clearance and the weight of the lid have less influence on the opening / closing property as compared with the case where the tank is attached by a hinge on the side, and the space required on the side of the tank when the lid is opened is small.

It is preferable that the lid be suspended from one end of the slide arm via a member whose length can be adjusted.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described. A horizontal tank 1 shown in the drawing is provided with a cartridge type filter member 5 and is used as a filter. The tank 1, which is closed at 10 and the opening at the other end is closed by a lid 2, is placed horizontally by a stand 11, and a stock solution inlet 12 is provided on the lower surface, and a filtrate solution flow is provided on the bottom plate 10 side. An outlet 13 is provided. In the figure, 14 is a partition plate, 15 is a cylindrical column supporting the filtering member 5, 17 is a guide plate supporting one end of the filtering member 5, and the undiluted solution that has entered the tank 1 from the undiluted solution inlet 12 is a baffle plate. The partition plate 1 spreads in the tank 1 through the filter member 5 and the inside of the cylindrical support 15.
4 and is discharged from the filtrate outlet 13.

On the upper surface of the tank 1 on the side of the opening end, a support member 3 is disposed rotatably about a vertical axis. As shown in FIGS. 3 and 4, the support member 3 has a shaft 31 mounted on a base 30 fixed to the tank 1 and a thrust bearing 3.
2 and a pair of side plates 34, 34, and rollers 35 disposed at four corners of the side plates 34, 34.

Between the side plates 34, 34 of the support member 3, the four rollers 35 are in contact with each other at two points, upper and lower, so that the slide arm 4 is slidable in the horizontal direction.
The lid 2 is suspended from one end of the slide arm 4 via an adjustment bolt 40. The adjustment bolt 40 is for adjusting the vertical position of the lid 2, and the stopper 41 provided at the other end of the slide arm 4 is for preventing the slide arm 4 from coming off.

In order to open the lid 2 closing the opening of the tank 1, the plurality of swing bolts 6 arranged on the opening edge of the tank 1 and locked to the lid 2 are loosened to release the fixing of the lid 2. 1, the lid 2 is moved forward by sliding the slide arm 4 as shown by a chain line in FIG.
The lid 2 is moved to the right or left side of the tank 1 by the rotation of the support member 3 as shown by a chain line in FIG. Tank 1
To open the front of the opening surface of
The replacement of the filtering member 5 can be easily performed.
Although the lid 2 is located on the side of the tank 1, the space required on the side of the tank 1 is much smaller than when the lid 2 is attached to the side of the tank 1 with a hinge. Therefore, even when the tanks 1 are arranged, the arrangement interval can be reduced.

When closing the lid 2, the procedure is reversed. The slide arm 4 has a required length, but when the lid 2 is closed, as shown in FIG.
When the cover 2 is opened, it is not obstructed, and when the cover 2 is opened, as shown in FIG. Furthermore, when the lid 2 is closed, the length from the support member 3 to one end of the slide arm 4 suspending the lid 2 is short, so that the lid 2 does not deviate from the opening of the tank 1 by weight and can be adjusted. The lid 2 can be easily opened and closed by adjusting the vertical position of the bolt 40.

[0012]

As described above, in the present invention, the slide arm is horizontally slidably supported by the support portion installed on the tank and rotatable around the vertical axis. Because the lid is suspended,
To open the closed lid, release the fixing by the fixing member, pull the lid forward by sliding the slide arm, and rotate the support in this state to position the lid on the side of the tank. Yes, at this time, the lid can be freely opened to the right or left, and the space required on the side of the tank is less than that required when hinged on the side of the tank. In addition, the clearance and the weight of the lid have little effect on the opening and closing properties of the lid and the adhesion between the tank and the lid, and are easy to deal with. What you can do.

In order to cope with the above problem, it is preferable to suspend the lid from one end of the slide arm via a member whose length can be adjusted. The influence of the clearance between the support member and the slide arm can be eliminated.

[Brief description of the drawings]

FIG. 1 is a cutaway side view of an example of an embodiment of the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is a side view of the support member and the slide arm.

FIG. 4 is a cutaway front view of the support member.

[Explanation of symbols]

 Reference Signs List 1 tank 2 lid 3 support member 4 slide arm 6 swing bolt

Claims (2)

[Claims] An opening / closing structure for a lid that closes an opening on one end surface of a horizontal type tank, wherein the supporting portion is mounted on the tank and is rotatable around a vertical axis, and the supporting portion has a horizontal direction. An opening / closing structure for a tank lid, comprising: a slide arm freely supporting a slide and suspending the lid from one end; and a fixing member for fixing the lid to the tank. 2. The tank lid opening / closing structure according to claim 1, wherein the lid is suspended from one end of the slide arm via a member whose length is adjustable.