JPS6320910U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view showing an embodiment of the present invention with the main parts omitted, Fig. 2 is a side view of the main parts of the mounting member, and Fig. 3 is an example of the usage situation of the embodiment. FIG. 4 is a cross-sectional view similar to FIG. 1, and FIG. 4 is a cross-sectional view of a main part of a conventional filter. The following symbols in the figure indicate the following parts, respectively.
1: Filter main body, 2: Cylindrical wall, 3: End plate, 6: Lid, 30: Mounting member, 31: Outlet passage, 32: First tubular member, 33: Contact surface, 34: Annular member ,
35: second tubular member, 36: cylindrical portion, 37
: Broken line guide hole, 38: First male thread, 39:
1st nut, 40: 2nd male thread, 80: 2nd
nut, 50: filter holding member, 51: substrate, 53: through hole, 54: pin, 103: filter assembly, 104: pedestal, 109: filter membrane.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A cylindrical wall formed in a cylindrical body made of a plate-like material with both longitudinal ends open, and a first cylindrical wall of the cylindrical wall.
an end plate made of a plate-shaped body fixed to the cylindrical wall to liquid-tightly close a second opening end of the cylindrical wall; a filter main body consisting of a lid that is freely fixed; a first mounting hole that is attached from inside the filter main body and that is formed in the end plate of the filter main body so as to penetrate the end plate in the thickness direction thereof; a first tubular member that is fitted into the tubular member and protrudes to the outside of the filter main body, and has an outlet passage formed therein that communicates with the inside of the filter main body; an annular member extending outward and integrally connected to the tubular member, the annular member being formed at a portion of the annular member that is connected to the tubular member, and having the end located outside the opening of the first attachment hole; a contact surface that comes into contact with the plate;
a first nut screwed onto a first male thread carved on the outer periphery of the base of the first tubular member;
a mounting member that is removably attached to the filter body by liquid-tightly clamping the end plate; and a filter that is fluid-tightly and removably fixed to the annular member of the attachment member inside the filter body. The holding member is liquid-tightly fixed to a second mounting hole formed through a plate-like body constituting the filter body, and has an introduction passage communicating with the inside of the filter body passed through the inside. A second male thread is formed on the outer periphery of the free end of the first tubular member and has an outer periphery shape that allows the first nut to pass therethrough. and protrudes from the annular member along the cylindrical wall of the filter main body on the outer circumference of the annular member, and has an axial length of at least a predetermined length on the inner circumference of the free end edge. A second tubular member including a cylindrical portion having a cylindrical inner wall surface is integrally formed with the free end thereof facing the second open end of the cylindrical wall. The filter holding member has one or more through holes through which the pedestal of the filter assembly is to be fitted in a liquid-tight manner in the thickness direction of the filter holding member, and the outer circumferential surface of the filter holding member is formed with the second through hole of the mounting member. A substrate made of a plate having a cylindrical wall surface that fits liquid-tightly into the cylindrical inner wall surface formed on the tubular member, and the pedestal is liquid-tightly fitted into the through hole of the filter holding member. The filter assembly is supported and held by the filter holding member, and the outlet pipe is freely attachable and detachable to the first tubular member of the attaching member via a second nut screwed onto the second male thread. , and a stock solution supply pipe is detachably connected to the introduction pipe. (2) A liquid-tight sealing material is disposed in a groove cut in the circumferential direction on the cylindrical wall surface formed on the outer circumferential surface of the substrate of the filter holding member to provide a liquid-tight seal between the cylindrical wall surface and the cylindrical inner wall surface. and a pin is planted in the radial direction at a position closer to the free end edge of the cylindrical portion than the groove, and the cylindrical portion of the second tubular member is provided with a pin for guiding the pin. 2. The filter according to claim 1, wherein a polygonal guide hole is formed at a free end edge of the second tubular member. (3) The filter holding member includes a plate in which a screw rod is installed approximately at the center of the substrate in a direction toward the second opening end of the filter body, and a hole is formed through which the screw rod is loosely inserted. An end pressing plate made of a shaped body is inserted into the screw rod through the hole, and a nut is screwed into the screw rod, and a pedestal provided at one longitudinal end is inserted into the through hole formed in the substrate. Claims 1 or 2 of the utility model registration claim, characterized in that the other end of the filter assembly fitted and supported is held by the end pressing plate and the nut. filter.