JPS6349294Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an oil tank that houses a filter on the suction negative pressure side of a pump.

Conventionally, a filter element was removably inserted into the opening at the top of the filter case housed in the oil tank case, a handle was connected to the filter element, and the handle was connected to the filter element and protruded from the oil filler port at the top of the tank case. For example, one that is installed side by side with this handle and has one end protruding upward from the filter case and the other end from the tank case is
It is known from Publication No. 2462. According to this product, the filter element can be taken out from the tank case by removing the cover of the oil filler port and pulling out the handle, which prevents air from entering the oil circuit during replacement, and also prevents the element collection dust from entering the tank. This prevents the product from falling off.

However, by circulating the oil, dust gets mixed in. For example, iron often gets mixed in, such as chips generated during machining and wear particles caused by wear of lubricating members. This iron adheres to the filter, causing problems such as deteriorating the filter function or damaging the filter.

A countermeasure against this problem is to put a magnet in the oil tank, but depending on where it is placed, it may not be able to attract iron properly, and if iron or the like adheres, the adsorption performance will deteriorate.

The present invention was developed in view of the above problems, and includes a magnet placed inside the filter element so that it can be taken out together with the filter element to facilitate maintenance and inspection. It is characterized by being easy to install and clean.

Next, the present invention will be explained based on embodiments shown in the drawings.

Filter case 2 inside oil tank case 1
is stored. A filter support 4 supporting a cylindrical filter element 3 is removably inserted into the upper opening 2a of the filter case 2, and a rod 5 is inserted into the center of the bottom 4a of the filter support frame 4.
is connected. The upper end 5a of this rod 5 is connected to a fuel filler strainer 6 which is detachably attached to the upper opening 1a of the tank case 1, and a fuel filler cap 7 is screwed onto the upper part of the fuel filler strainer. A cylindrical permanent magnet 8 is placed inside the filter element 3, and a lever 9 is connected to the upper part 8a. The upper part of this lever 9 is located inside the fuel filler strainer 6, and a grip part 9a is formed at the upper end. A wiper 10 is attached to the lower part of the fuel filler strainer, and when the grip part 9a is lifted upward to pull up the magnet 8, the wiper 10 sweeps the outer surface 8a of the magnet 8 to clean the surface. A suction pipe 11 is connected to a pump (not shown), and its lower end 11a is attached to the filter case 2, and its upper end is attached to the tank case 1. 12 is a handle.

When replacing the filter element 3, remove the fuel filler cap, lift the handle 12, and take out the fuel filler strainer 6, magnet 8, and filter element 3 from the tank case 1. Then, the grip portion 9a is pulled up and the surface 8a of the magnet 8 is cleaned with the wiper 10. After replacing the filter element, remove the handle 12.
Hold it and insert it, and tighten the oil filler cap 7.

As described above, according to the present invention, since the magnet can be taken out together with the filter element, maintenance and inspection are easy, and since the wiper is attached, the magnet can be easily cleaned. Furthermore, since a magnet is installed inside the filter element through which all of the oil passes, it is possible to effectively attract magnetized components such as iron, and even if the magnetized components are removed from the magnet, they remain within the filter support frame. This has the advantage that the magnetized portion can be reliably removed from the tank case when replacing the filter element.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of an oil tank according to the present invention, and FIG. 2 is a sectional view of essential parts showing a state in which a filter element is removed from a tank case and a magnet is lifted. 1...tank case, 2...filter case, 3...
Filter element, 8... Magnet, 10... Wiper, 11... Suction pipe.

Claims (1)

[Scope of utility model registration request] an oil tank case having an opening at the top; a filter case housed within the tank case and having an opening at the top; and a filter case which is removably inserted into the filter case from the opening of the filter case and has an opening at the top. a filter support on which a cylindrical filter element is removably supported; a magnet disposed inside the filter element to adsorb iron, etc. in oil; a lower end connected to the filter support and an upper end connected to the filter support; A rod is removably attached to the opening of the tank case and allows the filter support to be taken out together with the filter element and the magnet from the opening, and a grip is formed at the upper part and the magnet is attached to the lower end. a lever that is connected to the rod and that allows the magnet to be removed from the opening of the filter element; an oil tank comprising a wiper for cleaning the oil tank; and a pump suction pipe connected to the filter case and arranged to protrude outward from the tank case.