JPH0523202Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a filter that can efficiently remove fine particles dispersed in a liquid.

An upper disk-shaped body in which a liquid introduction pipe extending upward is formed in the center, a lower disk-shaped body in which a liquid discharge pipe extending downward is formed in the center, and the lower surface and lower part of the upper disk-shaped body. A filter is used that has a filter paper provided in the space formed between the upper surface of the disc-shaped body and the filter paper that is provided in the space formed between the disc-shaped body and the upper surface of the disc-shaped body. Since the liquid could not be uniformly supplied onto the filter paper when it was press-fitted, the filtration efficiency was not sufficient.

The present invention was devised to eliminate these drawbacks, and consists of an upper disk-shaped body in which a liquid inlet and discharge pipe extending upwardly is formed in the center, and a liquid inlet and discharge pipe extending downwardly in the center. In a filter, the filter has a lower disc-shaped body in which a liquid discharge introduction pipe is formed, and a filter paper provided in a space formed between the lower surface of the upper disc-shaped body and the upper surface of the lower disc-shaped body, The lower surface of the upper disk-like body has multiple linear grooves extending radially, multiple circular grooves provided on concentric circles, and a circular groove extending halfway toward the center from the outermost circular groove. A plurality of linear grooves are formed on the upper surface of the lower disk-like body, a plurality of linear grooves extending radially, a plurality of circular grooves provided on concentric circles, and a plurality of circular grooves located on the outermost side. The present invention relates to a filter characterized in that a plurality of linear grooves are formed extending halfway toward the center from a circular groove, and can be used in both a pressurizing type and a suction type.

The filter according to the present invention has specific grooves formed on the lower surface of the upper disk-shaped body and the upper surface of the lower disk-shaped body, so that when a liquid containing fine particles is injected from the liquid introduction pipe, the liquid It has excellent filtration efficiency because it can uniformly supply liquid onto the filter paper and efficiently discharge the liquid that has passed through the filter paper from the liquid discharge pipe.

The present invention will be described below with reference to the drawings.

The right half of Figure 1 is a partial sectional view showing an example of a filter according to the present invention, the left half of Figure 1 is a partial front view showing an example of a filter according to the present invention, and Figure 2 is a partial front view showing an example of a filter according to the present invention. FIG. 3 is a partial bottom view showing an example of an upper disk-like body in a filter, and a partial plan view showing an example of a lower disk-like body in a filter according to the present invention.

The filter includes an upper disk-shaped body 2 in which a liquid introduction pipe 1 extending upwardly is formed in the center;
In the space formed between the lower disc-shaped body 4 in which the liquid discharge pipe 3 extending downwardly is formed in the center, the lower surface 5 of the upper disc-shaped body 2, and the upper surface 6 of the lower disc-shaped body 4, It has a filter paper 7 provided.

The lower surface 5 of the upper disk-shaped body 2 has a plurality of linear grooves 8 extending radially, a plurality of circular grooves 9 provided on concentric circles, and a circular groove 9 located at the outermost side.
A plurality of linear grooves 10 are formed extending halfway toward the center. On the outside of the circular groove 9,
A step portion 11 that rises downward, a groove portion 12 that extends upward, and a horizontal edge portion 13 that descends downward are formed in this order.

The upper surface 6 of the lower disk-shaped body 4 includes a plurality of linear grooves 14 extending radially, a plurality of circular grooves 15 provided on concentric circles, and a groove extending from the outermost circular groove 15 to the center. A plurality of linear grooves 16 extending halfway in the direction are formed. On the outside of the circular groove 15, there is a step 17 that rises upward, a protrusion 18 that projects upward, and a horizontal edge 19 that descends downward.
are formed sequentially.

The upper disk-shaped body 2 and the lower disk-shaped body 4 are connected to the groove 1
2 and the protrusion 18 inserted therein are joined by welding by ultrasonic welding.

The filter paper 7 provided in the space formed between the lower surface 5 of the upper disk-shaped body 2 and the upper surface 6 of the lower disk-shaped body 4 has its periphery sandwiched between the stepped portions 11 and 17. There is.

The upper disk-shaped body 2 and the lower disk-shaped body 4 are each integrally molded from polyethylene, polypropylene, acrylonitrile-styrene copolymer, or the like.

Examples of the filter paper 7 include cellulose membranes, polypropylene membranes, Teflon membranes, Tetron membranes, etc., provided with pores of 0.2 to 0.5 μm.

When using the filter according to the present invention, by sucking the liquid in which particles are dispersed into the syringe and pressurizing it through the liquid introduction pipe 1, the liquid from which the particles have been removed can be efficiently discharged from the liquid discharge pipe 3. I can do it.

In the above embodiments, only the pressurization type or injection type was explained, but it is also possible to implement the suction type by connecting a suction device to either the liquid introduction pipe or the liquid discharge pipe.

[Brief explanation of drawings]

The right half of Figure 1 is a partial sectional view showing an example of a filter according to the present invention, the left half of Figure 1 is a partial front view showing an example of a filter according to the present invention, and Figure 2 is a partial front view showing an example of a filter according to the present invention. FIG. 3 is a partial bottom view showing an example of an upper disk-like body in a filter, and a partial plan view showing an example of a lower disk-like body in a filter according to the present invention. 1...Liquid introduction pipe, 2...Upper disk-shaped body,
3...Liquid discharge pipe, 4...Lower disk-shaped body, 5
... lower surface, 6 ... upper surface, 7 ... filter paper, 8 ... linear groove, 9 ... circular groove, 10 ... linear groove, 14 ...
...Straight groove, 15...Circular groove, 16...Straight groove.

Claims (1)

[Scope of Claim for Utility Model Registration] An upper disk-shaped body in which a liquid introduction/discharge pipe extending upwardly is formed in the center, and a lower disk-shaped body in which a liquid discharge/introduction pipe extending downwardly is formed in the center. and a filter paper provided in a space formed between the lower surface of the upper disk-shaped body and the upper surface of the lower disk-shaped body, the lower surface of the upper disk-shaped body has a plurality of filters extending radially. A linear groove, a plurality of circular grooves provided on concentric circles, and a plurality of linear grooves extending halfway toward the center from the outermost circular groove are formed, and a lower disk shape is formed. On the upper surface of the body, there are multiple linear grooves extending radially, multiple circular grooves provided on concentric circles, and multiple grooves extending halfway toward the center from the outermost circular groove. A filter characterized in that it has a linear groove and can be used in both a pressurized type and a suction type.