JP2002336625A - Magazine type filter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a filter so assembled that each filter element which filters fluid in a filter body can easily be replaced without disassembling the filter body. SOLUTION: The filter has a filter holder 11 rotatable around a rotating shaft 14. Four filter elements 12 are arranged around the rotating shaft 14 in the filter holder 11. A fluid channel is formed so that the fluid flows through one of the filter elements 12 positioned in the fluid channel by rotating the filter holder 11 around the rotating shaft 14. An inspection hole 18 through which the filter element 12 in a filtering state is monitored from the outside is an angled in the filter holder 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a pipe connected to a pipe,
The present invention relates to a filter suitable for filtering a fluid flowing in a pipe.

[0002]

2. Description of the Related Art FIGS. 2 and 3 show a conventional filter connected to a pipe and used for filtering a fluid flowing through the pipe. First, in FIG. 2, reference numeral 1 denotes a filter main body, in which a filter element 2 is accommodated. 5 is a cover member, and the cover member 5 is a bolt nut 3
It is detachably mounted as a flange connection. Reference numeral 4 denotes a seal, which is tightened so that the fluid inside the filter does not leak outside. In the filter shown in FIG. 2, the fluid flowing through the pipe flows from the inside to the outside of the filter element 2 as indicated by an arrow, and is filtered by the filter element 2 in the process.

Next, FIG. 3 shows a filter main body composed of a filter upper lid 7 and a filter lower lid 6 which is a screw-in type filter. It is assembled by being detachably fastened with a screw portion 8. 9 is a seal,
The seal 9 prevents the fluid inside the filter from leaking from between the lower lid 6 and the upper lid 7 to the outside. In the conventional filter shown in FIG. 3, the fluid flowing through the pipe is
The filter element 2 is filtered while flowing from the outside and flowing out of the inside.

In the conventional filters shown in FIGS. 2 and 3 configured as described above, when the piping system is contaminated, it is necessary to frequently replace and clean the filter element, and every time the filter element is taken out. Had to be replaced. That is, in the filter shown in FIG. 2, after removing the nut of the bolt nut 3 and replacing the filter element 2, it is necessary to tighten the nut again to the bolt, which is extremely troublesome. In the screw-in type shown in FIG. 3, the upper cover 7 and the lower cover 6 may be screwed in and out, but the seal 9 is easily damaged at the time of attachment and detachment, and there is a risk that fluid leakage may occur due to seal damage. there were.

[0005]

SUMMARY OF THE INVENTION In view of the above-mentioned problems of the conventional filter, the present invention provides a filter element for filtering a fluid inside a filter body without disassembling the filter body. It is an object to provide a filter configured to be easily exchanged.

[0006]

In order to solve the above-mentioned problems, the present invention has a filter holder rotatable around a rotation axis, in which a plurality of filter elements are provided around the rotation axis. A fluid flow path is formed such that fluid flows through one of the filter elements positioned by rotating the filter holder about the rotation axis, and the filter holder is being filtered. The present invention provides a magazine type filter having a structure provided with an inspection hole for monitoring the filter element from the outside.

According to the magazine type filter of the present invention having the above-described structure, the filter holder is rotated around the rotation axis to switch the fluid so that the fluid flows through one of the positioned filter elements. Switching can be performed easily and in a short time. Moreover, the switching of the filter element is performed through an inspection hole provided in the filter holder.
This can be performed efficiently while checking the degree of contamination of the filter element in use.

Further, in the magazine type filter according to the present invention, the switching of the filter element can be performed only by rotating the filter holder around the rotation axis thereof. In addition, the piping is not opened at the time of switching, so that air does not enter the inside.

In the magazine type filter according to the present invention, the filter holder has a detachable lid member, and the lid member is removed to replace the plurality of filter elements in the filter holder. Then, when all of the plurality of filter elements in the filter holder are contaminated by the switching use, the lid member is removed and the plurality of filter elements inside the filter holder are replaced with the filter holder containing the new filter element. This is preferable because the filter holder can be rotated around the rotation axis again, and the filter element to be used can be switched and used repeatedly.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a magazine type filter according to the present invention will be described in detail with reference to an embodiment shown in FIG. In FIG. 1, reference numeral 10 denotes a hollow cylindrical filter main body, in which a filter holder 11 is rotatably accommodated. In the filter holder 11,
As can be seen from FIG. 1B, there is provided a space for accommodating four filter elements 12 at intervals of 45 ° in the circumferential direction.

The filter holder 11 is rotatably provided around a rotating shaft 14 as shown by an arrow 13 and is rotated around the rotating shaft 14 like a pistol magazine.
One of the filter elements 12 housed in the filter holder 11 is configured to be positioned in the fluid flow as described below. A cover member 15 is detachably attached to the filter body 10 by bolts and nuts 16. Reference numeral 17 denotes a seal, and the filter body 1
0 and the cover member 15 prevent the fluid from leaking to the outside.

An inspection hole 18 is provided in the cover member 15 at a position where the filter element 12 which is performing fluid filtration can be monitored.
Is provided. Further, a plurality of ball springs 19 are provided inside the lid member 15, and urge the balls 20 toward the filter holder 11. The filter holder 11 is provided with four recesses at circumferential positions where the balls 20 are arranged, and the filter holder 11 is positioned with the balls 20 engaged with the recesses.

A spring 21 is provided at the tip of a shaft 14 for rotating the filter holder 11 and urges the shaft 14 toward the lid 15 to prevent the filter holder 11 from rotating. Also, a shaft holding nut 22 is attached to the shaft 14, and the shaft 14 is configured so as not to be pushed in against the urging force of the spring 21 by tightening the shaft holding nut 22 toward the lid 15. I have. Numerals 23 and 24 are pipes, and a fluid to be filtered flows from the pipe 23 to the pipe 24 as shown by arrows.

One of the filter elements 12 housed and held in the filter holder 11 is located in the flow path of the fluid flowing from the pipe 23, and the fluid passing through the filter element 12 flows from the pipe 24 through the pipe 24. leak.
In the filter of FIG. 1, the filter element 12 is positioned so that the fluid flows through the filter element 12 at the position indicated by B among the filter elements 12 held by the filter holder 11.

In the filter of FIG. 1 constructed as described above, B which filters the fluid flowing through the pipes 23 and 24 is used.
Check the contamination state of the filter element 12 at the position
8, if it is confirmed that the contaminant is contaminated, the shaft holding nut 22 is loosened, and then the shaft 14 is pushed in against the urging force of the spring 21, and the shaft is pushed in the direction of arrow 13 in FIG. By rotating the filter element 14, the filter element 12 housed at the position C of the filter holder 11 is positioned at the position B in FIG. 4B, and the filter element 12 located at the position C is placed in the fluid flow path. In this state, the ball 20 urged by the ball spring 19 engages with the recess of the filter holder 11 and is positioned. When the filter element 12 at the position C is contaminated, the same operation as described above is performed, and then the filter element 12 at the position D is rotated to the position B in FIG. Use the filter element at position E.

Thus, until all the filter elements 12 housed in the filter holder 11 are used,
The filter element 12 can be switched and used without opening the filter body 10. When all the filter elements 12 have been used, the bolt and nut 16
, The lid 15 is opened, and the filter holder 11 together with the contaminated filter element 12 is removed, and the filter holder 11 in which the new filter element 12 is stored
And replace it with the cover 15 and tighten it with the bolt and nut 16.

As described above, the filter element 12 housed in the new filter holder 11 is switched and used in a magazine type while the filter main body 10 is not opened during that time. At the time of switching, the fluid inside the pipes 23 and 24 does not leak outside, and no air enters the pipes 23 and 24. Also, the filter element 12
Can be switched without wasting while checking the contamination state of the filter element from the inspection hole 18.

As described above, the magazine type filter according to the present invention has been described based on the illustrated embodiment. However, the present invention is not limited to this embodiment at all, and the present invention is not limited to the illustrated embodiment. It goes without saying that various modifications and changes may be made within the scope of the invention.
For example, in the illustrated embodiment, four filter elements 12 are accommodated in the filter holder 11, but the number of filters is not limited to four as long as the number of filters is plural.

Further, a biasing structure of the shaft 14 by the spring 21;
The positioning structure of the filter holder 11 by the ball spring 19 and the ball 20 and the like may be changed to those of various mechanisms.

[0020]

As described above, the present invention has a filter holder rotatable around a rotation axis, in which a plurality of filter elements are arranged around the rotation axis. A fluid flow path is formed so that fluid flows through one of the filter elements positioned by rotating the filter holder around the rotation axis, and the filter element that is being filtered is formed in the filter holder. Provided is a magazine type filter having a structure provided with an inspection hole to be externally monitored.

According to the magazine type filter of the present invention, the filter holder is easily rotated around the rotation axis so that the fluid flows through one of the positioned filter elements. It can be done in a short time. Further, in the magazine type filter of the present invention, the switching of the filter element can be performed without waste while checking the degree of contamination of the filter element in use from the inspection hole provided in the filter holder.

Furthermore, in the magazine type filter according to the present invention, the switching of the filter element can be performed only by rotating the filter holder about its rotation axis, so that the fluid leakage accompanying the switching of the filter element does not occur. In addition, the piping is not opened at the time of switching, so that air does not enter the inside.

In the magazine type filter according to the present invention, the filter holder has a detachable lid member, and the lid member is removed so that the plurality of filter elements in the filter holder can be replaced. Then, when all of the plurality of filter elements in the filter holder are contaminated by the switching use, the lid member is removed and the plurality of filter elements inside the filter element are replaced with the filter holder containing the new filter element. This makes it possible to rotate the filter holder around the rotation axis again, switch the filter element to be used, and use the filter element repeatedly.

[Brief description of the drawings]

1A and 1B are drawings showing a magazine type filter according to an embodiment of the present invention, wherein FIG. 1A is a longitudinal sectional view taken along the line II in FIG. 1B, and FIG. FIG.

FIG. 2 is a drawing showing an example of a conventional filter in a partial cross section.

FIG. 3 is a sectional view showing another example of a conventional filter.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Filter main body 2 Filter element 3 Bolt nut 4 Seal 5 Lid member 6 Filter lower lid 7 Filter upper lid 8 Screw part 9 Seal 10 Filter main body 11 Filter holder 12 Filter element 14 Rotating shaft 15 Lid member 16 Bolt nut 17 Seal 18 Inspection hole 19 Ball spring 20 Ball 21 Spring 22 Shaft holding nut 23 Piping 24 Piping

Claims (2)

[Claims] 1. A filter holder rotatable around a rotation axis, wherein a plurality of filter elements are arranged around the rotation axis in the filter holder, and the filter holder is mounted around the rotation axis. A fluid flow path is formed so that fluid flows through one of the filter elements positioned by rotation, and the filter holder is provided with an inspection hole for externally monitoring the filter element being filtered. A magazine-type filter. 2. The filter holder according to claim 1, wherein the filter holder has a detachable lid member, and the lid member is removed so that the plurality of filter elements can be exchanged together with the filter holder. 2. The magazine type filter according to 1.