JPH0595607U - Filter container - Google Patents

Abstract

(57) [Abstract] [Purpose] Dual structure consisting of a pressure-resistant sheath portion and a unit container having a liquid inlet and a liquid outlet that are inscribed in the sheath and have a shut-off valve and are inscribed in the sheath portion. In the filter container, the shutoff valve of the unit container is accurately restored to a predetermined position to prevent liquid leakage when the unit container is replaced. [Structure] It has a double structure consisting of a sheath having a pressure resistant structure and a unit container housed inscribed in the sheath. The unit container includes a cylindrical body containing a cartridge filter and a base. The base is provided with a liquid inlet and a liquid outlet, each of which has a stop valve. The liquid inlet and the liquid outlet are provided with a plurality of ribs that loosely fit the shutoff valve and guide the shutoff valve to a predetermined position.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a filter container incorporated in a line for removing impurities in a liquid, and more particularly to a shape of a disposable unit container containing a cartridge filter.

[0002]

[Prior Art]

 As a filtering device incorporated in a line to remove contaminants in a liquid, the present inventors have proposed in Japanese Patent Application No. 2-415252 that a sheath portion having a pressure-resistant structure and an inner portion of the sheath portion are inscribed. We proposed a double-structured filter container consisting of a unit container that is housed and contains a cartridge filter.

This double-structured filter container is composed of a pedestal whose sheath portion can be directly connected to a line pipe and a cap portion, and is a structure in which both are integrated by attaching a unit container to the pedestal. The unit container contains a predetermined cartridge filter, and has a liquid inlet and a liquid outlet that can be fitted into the liquid inlet pipe and the liquid outlet pipe provided on the pedestal, respectively. The liquid discharge port and the liquid discharge port are each provided with a shutoff valve. By fitting and setting the unit container to the pedestal, the flow path is opened, and the unit container is removed from the pedestal at the same time. The road is closed.

Furthermore, the inventors of the present invention proposed a unit container suitable for the above-mentioned double structure filter container in Japanese Patent Application No. 3-347804. This unit container independently covers the upper end of each cartridge filter that is built in, and is a cylindrical cartridge stopper that fits into the end of the inner hole of this cartridge filter and the end face of the cartridge filter on the outside. And an upper end cap having a ring-shaped sealing edge for sealing the same, and a cylindrical cartridge stopper that fits in the inner hole end of this cartridge filter corresponding to the position and the required number of each cartridge filter in the same plane. A bottom end cap having a ring-shaped sealing edge for sealing the end surface of the cartridge filter on the outside thereof, and the cartridge filter as an upper end cap corresponding to the number of cartridge filters. , One flat common bottom end cap with top and bottom It is obtained as allowed to fixed units in the container by to clamping.

In the unit container proposed above, the stop valves provided at the liquid inlet and the liquid outlet are urged by springs, and the unit container is set in the sheath of the pressure resistant structure. Is pushed up by the liquid introduction pipe and the liquid discharge pipe provided on the pedestal, and the liquid flow path is opened. When the unit container is removed from the sheath, the elasticity of the spring closes each shutoff valve to the liquid inlet and liquid outlet, preventing the residual liquid in the unit container from flowing out.

However, if the elasticity of the spring is weak or the position where the shutoff valve returns is incorrect, the liquid inlet or the liquid discharge port is not accurately blocked by the shutoff valve, and the residual liquid leaks out. However, there was a problem that the liquid leaked when the unit container was replaced deteriorates the working environment.

[0007]

[Problems to be solved by the device]

 The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a sheath portion having a pressure resistant structure and a unit container that has a cartridge filter built therein and is inscribed and stored in the sheath portion. In a double-structured filter container according to the present invention, it is an object of the present invention to provide a filter container in which the shut-off valve of the unit container can be accurately restored to a predetermined position and liquid leakage during replacement of the unit container is effectively prevented.

[0008]

[Means for Solving the Problems]

 The filter container of the present invention is a double-structure filter container comprising a sheath having a pressure resistant structure and a unit container inscribed in the sheath, wherein the unit container has an upper end cap and a lower end cap. A cylindrical body that accommodates a cartridge filter whose both ends are covered with a base, and a base that includes a liquid inlet and a liquid outlet, each of which has a stop valve, and a partition that shuts off the liquid before and after filtration. And a plurality of ribs for loosely fitting the closing valve and guiding the closing valve to a predetermined position are provided at the liquid inlet and the liquid outlet. Is.

The rib according to the present invention is provided on the inner peripheral portions of the liquid inlet and the liquid outlet along the direction in which the stop valve moves, so long as it accurately guides the stop valve to a predetermined position. The shape, the number, etc. are not particularly limited. The rib according to the present invention is preferably formed at the same time when the base of the unit container is formed.

[0010]

[Action]

 The filter container of the present invention has a plurality of ribs formed at the liquid inlet and the liquid outlet of the base of the unit container, and these ribs accurately guide the stop valve to the predetermined position without changing the unit container. At this time, the stop valve reliably blocks the liquid inlet and the liquid outlet, and there is no risk of leaking the residual liquid in the unit container. Further, this rib naturally also has the reinforcing effect that the rib generally has, so that the strength of the liquid inlet and the liquid outlet is improved.

[0011]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 7 is an assembly explanatory view showing an example of the double structure filter container, and FIG. 8 is a vertical cross-sectional view of the assembled double structure filter container (in the case of seven filters). The metal sheath having a permanent pressure resistant structure is divided into a pedestal 1 and a cap portion 2, both of which are fastened and integrated by a coupling means via a flange 3. The pedestal 1 is provided with a liquid introduction pipe 4 and a liquid discharge pipe 5, and the outer sides of these pipes are directly connected to a line pipe (not shown). Notch grooves (not shown) through which liquid can pass are formed at the tips of the liquid introduction pipe 4 and the liquid discharge pipe 5.

The unit container 6 has a cartridge filter 7 built-in, has a liquid inlet 8 and a liquid outlet 9 at the bottom, and the liquid inlet 8 and the liquid outlet 9 are closed from the inside. It comprises shut-off valves 10 and 11 which are biased by springs 30 and 31. When assembling, the liquid introducing pipe 4 is fitted into the liquid introducing port 8 and the liquid discharging pipe 5 is fitted into the liquid discharging port 9 so that the unit container 6 is attached to the pedestal 1 and then the cap portion 2 is attached. It suffices to cover the unit container 6 from above and connect it to the pedestal 1. At this time, the shutoff valves 10 and 11 are pushed up by the liquid introduction pipe 4 and the liquid discharge pipe 5, respectively, so that the liquid flow path is opened.

FIG. 1 is a vertical cross-sectional view (when the number of filters is 7) showing an embodiment of the unit container of the present invention, and FIG. 2 is a cross-sectional view taken along line XX ′ of FIG. The unit container 6 is made of a plastic molded product, and has a body 13 at the upper part for accommodating the cartridge filter 7, and a liquid before filtration (hereinafter referred to as “stock solution”) flowing from the liquid inlet 8 at the lower part. And a filtered liquid (hereinafter, referred to as “filtrate”) flowing out from the liquid discharge port 9 and a base portion 15 for partitioning / distributing with a partition wall 14.

FIG. 3 is a plan view of the base of the unit container of FIG. 1, FIG. 4 is a sectional view taken along line YY ′ of FIG. 3, and FIG. 5 is a perspective view of the base. FIG. 6 is a perspective view showing the bottom surface of the lower end cap 16 that accommodates seven cartridge filters. The lower end cap 16 includes a fitting pin 12 and a ring-shaped guide 21 that supports one end of the shutoff valve 10. The base portion 15 and the lower end cap 16 are guided by fitting the positioning fitting pin 12 into the guide hole 22, and the upper edge of the partition wall 14 and the strip-shaped fitting portion 20 are fitted together. It is fixed in place.

As is clear from FIGS. 3 and 4, the liquid introduction port 8 is provided with a plurality of liquid introduction port ribs 18 extending vertically on the inner peripheral surface thereof. The stop valve 10 is guided to a predetermined position by loosely fitting and moving with the liquid inlet rib 18.

Further, inside the bottom surface of the base portion 15, liquid discharge port ribs 19 are formed that extend radially outwardly around the liquid discharge port 9. Each liquid discharge port rib 19 abuts the lower end cap 16 and supports the lower end cap 16. The stop valve 11 provided in the liquid discharge port 9 is guided to a predetermined position by loosely fitting and moving with the liquid discharge port rib 19. In the present embodiment, the liquid discharge port rib 19 also has an effect as a straightening plate that regulates the flow of the filtrate in the base and prevents turbulent flow and retention.

The cartridge filter 7 contained in the unit container 6 is positioned at its lower end by a lower end cap 16 having a cylindrical cartridge stopper 26, and its upper end is attached to each cartridge filter 7 by a cartridge stopper. The upper end cap 17 having a support member 27 supports the upper surface of the body 13 via the cushion member 25, and both end surfaces of the cartridge filter 7 are shielded by the upper end cap 16 and the lower end cap 17, respectively.

As is apparent from FIG. 6, the lower end cap 16 is provided with seven holes that communicate with the seven inner holes of the cartridge filter, and the fitting portion 20 includes these holes inside. Formed into a loop. Thus, as shown in FIG. 1, the lower end cap 16 also functions to partition the filtrate from the stock solution and guide it to the solution discharge port 9 together with the partition wall 14. Further, the reason why the lower end cap 16 has a plurality of cutouts on the outer peripheral portion is to make the passage of the liquid smoother, and the stock solution flowing from the liquid introduction port 8 flows from the partition outside the partition wall 14 to the lower end. It is guided to the outer surface of the cartridge filter in the body 13 through the outer periphery of the cap 16.

FIG. 9 is a bottom view of the base of the unit container of FIG. As is apparent from this figure, a reinforcing rib 24 extending radially outward from the center and a reinforcing rib 24 'formed concentrically with the liquid discharge port 9 are provided on the outside of the bottom surface of the base portion 15. .

[0021]

As described above, according to the filter container of the present invention, since the rib for guiding the closing valve is provided at the liquid inlet and the liquid outlet of the base of the unit container, the closing valve can be provided with a predetermined position without shifting. The liquid can be moved to the correct position and the liquid inlet and liquid outlet can be closed securely, and the liquid remaining in the unit container will not leak out when the unit container is replaced. Therefore, it is possible to achieve the simplification and cleaning of the work, which is the original purpose in actual use.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of the unit container of the present invention.

FIG. 2 is a sectional view taken along line XX ′ in FIG.

3 is a plan view of the base of the unit container of FIG. 1. FIG.

4 is a cross-sectional view taken along line YY ′ of FIG.

5 is a perspective view of a base portion of the unit container of FIG. 1. FIG.

6 is a perspective view showing the bottom surface of the lower end cap of FIG. 1. FIG.

FIG. 7 is an assembly explanatory view of a double structure filter container.

FIG. 8 is a vertical cross-sectional view of the assembled dual structure filter container.

9 is a bottom view of the base of the unit container of FIG. 1. FIG.

[Explanation of Codes] 1 Pedestal 2 Cap part 3 Flange 4 Liquid introduction pipe 5 Liquid discharge pipe 6 Unit container 7 Cartridge filter 8 Liquid introduction port 9 Liquid discharge port 10, 11 Closing valve 12 Fitting pin 13 Body part 14 Partition wall 15 Base part 16 Lower End Cap 17 Upper End Cap 18 Liquid Inlet Rib 19 Liquid Outlet Rib 20 Fitting Part 21 Ring Guide 22 Guide Hole 23 Handle 24, 24 'Reinforcing Rib 25 Cushion Material 26, 27 Cartridge Stopper 28, 29 O-ring 30, 31 Spring

Claims (1)

[Scope of utility model registration request] 1. A dual-structure filter container comprising a sheath having a pressure resistant structure and a unit container housed inscribed in the sheath, wherein the unit container has an upper end cap and a lower end cap. A cylindrical body for accommodating a cartridge filter whose part is covered, and a base having a partition wall for arranging a liquid inlet and a liquid outlet, each of which has a shut-off valve, and for shutting off the liquid before and after filtration. A filter container, wherein a plurality of ribs for loosely fitting the closing valve and guiding the closing valve to a predetermined position are provided at the liquid inlet and the liquid outlet.