JPS5826005Y2 - Strainer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a strainer used to remove dust and other solid impurities contained in a fluid.

This type of strainer is used, for example, by installing it in the middle of piping, or by putting it directly into a liquid source such as a tank, but since a strainer is installed for each liquid source to be filtered, the liquid When there are multiple sources, the number of strainers increases and the piping structure becomes complicated, which sometimes causes problems with the piping.

Further, in conventional strainers, it takes time and effort to take out the filter element inside, which is particularly inconvenient when replacing and cleaning the strainer frequently.

This idea was developed based on the above circumstances, and its purpose is to make it possible to share one strainer even if there are multiple sources of liquid to be filtered, to simplify the piping structure, and to make it easier to insert and remove the filter element. It is an object of the present invention to provide a strainer that is easy to operate, maintain, and inspect.

That is, this invention has an element storage chamber inside, has an outlet communicating with the element storage chamber at one end, has an element inlet/outlet at the other end, and has at least two holes in the side wall opening into the element storage chamber. a casing having separate inflow ports; a cylindrical filtration element that is accommodated in the element housing chamber through the element inlet/outlet; a screw-on lid that closes the element inlet/outlet; and an end portion of the lid and the filtration element. The strainer is characterized by comprising a spring interposed between the filter element and the filter element to press the filter element toward the outlet side.

This invention will be explained below based on an illustrated embodiment.

In the figure, 1 is a casing constituting the strainer main body, and this casing 1 has an element storage chamber 2 inside.

Further, the side wall portion of the casing 1 is provided with two inlet ports 3 and 4 which respectively open into the element storage chamber.

Two different liquid sources are connected to the inlets 3 and 4 through inlet piping and on-off valves (not shown), respectively.

Furthermore, the element storage chamber 2 is provided at one end of the casing 1.
An outlet 5 is formed which communicates with the outlet.

For example, a water pump is connected to this outlet 5 via an outlet pipe (not shown).

Furthermore, an element insertion/extraction opening 11 is formed at the other end of the casing 1 so as to face the above-mentioned outflow port 5 .

Further, 6 is a filter element, which is accommodated in the element accommodating portion 2.

This filter element 6 has a cylindrical filter body 7 with both ends open, one end 7a of which is closed by an end member 8, and the other end 7b is open. It is connected to the above-mentioned outlet 5 via.

Further, numeral 10 is a screw-in lid that closes the element insertion/extraction opening 11.

This lid 10 has a short bolt shape, is located on the same axis as the filtration element 6, and is composed of a polygonal head 10a for screwing and a threaded part 10b. It is attached by screwing into the element insertion/removal opening 11 which is connected to the element housing part 2.

A spring 12 is interposed between the end of the filtration element 6 and the lid 10, and its elastic force causes the opening end 7b of the filtration element 6 to be pushed into the small diameter stepped portion 5a formed on the inner surface of the outlet 5. The filter element 6 is fixed by pressing.

This pressing force maintains close contact between the opening end 7b and the outlet 5, and prevents the generation of an undesired gap.

13 is Patsukin. However, in the strainer configured as described above, one of the inflow ports 3 and 4 is selected by operating an on-off valve (not shown) connected to the inflow ports 3 and 4, and a desired liquid is supplied to the casing 1. When the liquid is introduced into the filter body 7, the introduced liquid enters the filter body 7 from the outer peripheral side of the filter body 7, solid impurities such as dust are removed by the filter body 7, and then exits from the outlet 5.

When replacing or cleaning the filter element 6, the lid 10 is removed from the casing 1.

Then, the filtering element 6 is released from being fixed by the spring 12 and can be removed, so the filtering element 6 can be removed from the element insertion/removal opening 11.

In other words, the filter element 6 inside can be inserted and removed very easily simply by attaching and detaching the lid 10, making it easy to replace and clean the element.

Note that three or more inflow ports may be provided.

As mentioned above, this idea is based on the fact that two or more inlets are provided in the side wall of the casing, and even if fluid is introduced into either of them, it can pass through the filtration element and flow out from the outlet. Using one strainer, multiple types of liquids sent from multiple sources can be filtered simultaneously or alternately and removed from a common outlet.

Therefore, when there are multiple liquid sources, the piping structure related to the strainer can be simplified.

In addition, the filtration element can be easily taken out from the element inlet/outlet by removing the lid, making it easier to replace, clean, and perform other maintenance and inspections on the filtration element. The filtering element can be reliably held by the elastic force of the spring interposed in the filter, and leakage between the filtering element and the outlet can be prevented, which has great practical effects.

[Brief explanation of the drawing]

The drawing is a longitudinal sectional side view of a strainer showing an embodiment of this invention. 1...Casing, 2...Element storage chamber, 3゜4...Inflow port, 5...Outlet port, 6...Filtration Element, 10...
・Lid, 11... Element inlet/outlet, 12.
·····spring.

Claims (1)

[Scope of utility model registration request] It has an element storage chamber inside, has an outflow port communicating with the element storage chamber at one end, has an element inlet/outlet port at the other end, and has at least two inflow ports opening into the element storage chamber in the side wall. A casing provided, a cylindrical filtration element that is removably housed in the element storage chamber through the element loading/unloading port, a screw-in lid that closes the element loading/unloading port, and an end portion of the filtration element between the lid and the filtration element. A strainer comprising a spring interposed between the filter element and the filter element to press the filter element toward the outlet side.