JPH0225449Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a strainer, which prevents water pipes, nozzles, etc. used for watering irrigation, etc., from becoming clogged with debris sucked up along with water from rivers and reservoirs. This relates to a strainer that is installed on the suction side of a suction hose to prevent the suction from leaking.

[Conventional technology]

Conventional strainers of this type have a structure in which a substantially basket-shaped strainer is attached to the suction side end of a suction hose.

[Problem that the invention attempts to solve]

The above-mentioned conventional strainer had problems in that it was easily clogged due to adhesion of dust and was easily damaged.

This invention was developed in view of the above problems, and it causes less clogging and allows easy cleaning of clogged garbage.
This provides a strainer with excellent durability.

[Means for solving problems]

The strainer of the present invention connects a strainer body with openings at both ends to the lower end of a pipe into which the suction end of a suction hose connected to a pump is inserted, and a spherical shape is inserted inwardly into both openings of the strainer body. The invention is characterized in that a curved inner screen with a finer mesh is attached, and a screen with a coarser mesh than the inner screen is attached on the outside of both inner screens.

[Effect]

The strainer of this invention holds a pipe with a strainer attached to it in a river, reservoir, etc. with its upper end opening protruding above the water surface, and connects a suction hose with the suction side inserted through the upper end opening of the pipe to a pump. Connect and drive the pump. The water sucked up from the openings at both ends of the strainer body by the pump is discharged from the pump via the suction hose. Among the dust sucked up from the openings at both ends of the strainer body, large dust is prevented from being sucked in by the outer screen, and relatively small dust is prevented from being sucked in by the inner screen. Since it is curved into a spherical shape and the surface area is expanded, there is less clogging, and even if one opening of the strainer body becomes clogged, suction can continue to be drawn from the other opening.

〔Example〕

The configuration of an embodiment of the present invention will be described with reference to the drawings.

Reference numeral 1 denotes a strainer body, which is made of cheese molded into a substantially T-shape from vinyl chloride resin, and an opening 2 at the center of the upper side of the strainer body 1 has a strainer connected to a pump (not shown). A pipe 4 into which the suction side of the hose 3 is inserted is detachably attached by screwing or the like.

Also, in the openings 5 and 6 at both ends of the strainer body 1, inner screens 7 and 7 are made of stainless steel or the like and are curved and molded into a substantially spherical shape on the inside and have many fine mesh openings of about 40 meshes.
are fitted, and the flange-like portions 8 formed on the peripheries of the inner screens 7, 7 are brought into contact with the edges 9 of the openings 5, 6 at both ends of the strainer body 1.

Reference numeral 10 denotes a net-like outer screen molded into a disk shape from polyethylene resin and having a large number of rough mesh openings of about 11 meshes, and the outer screen can be attached to and removed from the openings 5 and 6 at both ends of the strainer body 1, respectively. A cylindrical holding body 11 that is press-fitted into the
is integrally attached to the

Furthermore, the flange-like portion 8 of the inner screen 7
An annular packing 12 is interposed between the outer screen 10 and the peripheral edge of the outer screen 10.

Next, the operation of this embodiment will be explained.

Hold the upper end opening of the pipe 4 above the water level 13 of a river or reservoir, insert the suction side end of the suction hose 3 connected to the pump through the upper end opening of the pipe 4, and then Place the tip of the hose 3 below the water level and fix it by appropriate means. When the pump is driven, water sucked up from the openings 5 and 6 at both ends of the strainer main body 1 is discharged from the pump via the suction hole 3. Among the dust sucked up from the openings 5 and 6 at both ends of the strainer body 1, large dust is removed from the outer screen 1.
0, relatively small dust is prevented from being sucked in.
The suction is prevented by the inner screen 7, and the inner screen 7 is curved inward into a spherical shape and the surface area is expanded, so there is less clogging, and it also prevents clogging, for example, from one opening 5 of the strainer body 1. Even if this happens, water is sucked in from the other opening 6.
When sucking up water from a river, one opening 5 of the strainer body 1 is placed on the upstream side and the other opening 6 is placed on the downstream side.
Even if the screen becomes clogged with dust, etc., the downstream opening 6 is less likely to be clogged with dust, and the downstream screens 7, 10 are less likely to be clogged and can continuously suck up water.

Further, when dust adheres to the screens 7, 10, the holding body 1 can be removed from the openings 5, 6 of the screen body 1, and the outer screen 10 can be cleaned, and the inner screen 7 can also be easily removed by removing the outer screen 10. The inner screen 7 can also be cleaned easily. After cleaning, insert the inner screen 7 into the opening 5 of the strainer body 1,
6 and packing 1 on the edge 9.
2 are brought into contact with each other, and then the holder 11 is press-fitted into the openings 5 and 6 of the strainer body 1. In this state, the edge 9 of the inner screen 7 is held in pressure contact with the end of the strainer body 1 by the flange 14 of the holder 11 via the packing 12.

[Effect of idea]

According to the present invention, a strainer body having openings at both ends is connected to the lower end of the pipe into which the suction end of the suction hose connected to the pump is inserted, and a spherical shape is inserted inwardly into both openings of the strainer body. An inner screen with a finer mesh is installed, and a screen with a coarser mesh than the inner screen is installed on the outside of both inner screens, so when pumping water from rivers, reservoirs, etc., there is a relatively large screen that is sucked in with the water. Dust is prevented from being sucked in by the outer screen 10, and small dust is prevented from being sucked in by the inner screen 7, so that the screens 7 and 10 are not clogged, and the inner screen has a large filtration area and can be filtered continuously. In addition, the strainer main body 1 has openings 5 and 6 formed on both sides, allowing water to be sucked in even if one side is clogged, improving operability and minimizing damage and deformation of the screens 7 and 10, allowing for long-term use. It is something that can be done.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional front view of a strainer showing one embodiment of the present invention, and FIG. 2 is an enlarged sectional view of the same screen portion. 1... Strainer body, 3... Suction hose, 4... Pipe, 5... Inner screen, 1
1...Outer screen.

Claims (1)

[Scope of utility model registration request] A strainer body with openings at both ends is connected to the lower end of the pipe into which the suction end of the suction hose connected to the pump is inserted, and meshes curved inwardly into spherical shapes are inserted into both openings of the strainer body. A strainer characterized in that a fine inner screen is attached, and a screen with a coarser mesh than the inner screen is attached to the outside of both inner screens.