Abstract: The present invention provides a water purifier, the water purification capability of which can be maintained over a long period of time. The water purifier 1 has: an attachment main body 10 that has an inflow passage P11, into which tap water flows from an inlet 11, and outflow passages P12 and P13 communicating with outlets 12 and 13; and a water purification main body 20 that has a first flow passage P21, a second flow passage P22, a third flow passage P23, a first filter material 25 between the first flow passage P21 and the second flow passage P22, and a second filter material 26 between the third flow passage P23 and the second flow passage P22 and is rotatably mounted onto the attachment main body 10. During a parallel filter material mode, the first flow passage P21 and the third flow passage P23 communicate with the inflow passage P11 and the second flow passage P22 communicates with the outflow passage P12.

Abstract: A filtration device with filters that can be backwashed with purified water switches between water purification, first backwashing, and second backwashing modes, depending on a pivot position of a valve. During the first backwashing mode, while a tap water inlet is in communication with a second tap water passage port, first and second purified water passage ports are blocked from communication with a purified water outlet, so purified water from a second filter flows backward through a first filter and is discharged from a drain water outlet. During the second backwashing mode, while the tap water inlet is in communication with a first tap water passage port, first and second purified water passage ports are blocked from communication with the purified water outlet, so purified water from the first filter flows backward through the second filter and is discharged from the drain water outlet.

Abstract: Provided is a filtration device with a plurality of filters that can be backwashed with purified water with a simple operation. The filtration device 1 switches between a water purification mode, a first backwashing mode, and a second backwashing mode, depending on a pivot position of a valve 6. During the first backwashing mode, while a tap water inlet 51 is in communication with a second tap water passage port 53, first and second purified water passage ports 54, 55 are blocked from communication with a purified water outlet 56, so that purified water from a second filter 3 flows backward through a first filter 2 and is discharged as drain water from a drain water outlet 57.

Abstract: A general-purpose frame structure to mount a powerplant to a car body includes four side frames having respective basal ends to be attached to a fore end of a cabin and adapted to extend in the fore-and-aft direction of the car body. Mounting devices are interposed between the side frames and the powerplant. The side frames have surfaces provided with a plurality of attachment openings arranged in a row at specific intervals. Side frame adjusters are configured to be interposed between the cabin and the side frames for adjusting the relative positions of the cabin and the side frames. The mounting devices are fitted, at the side of the side frames thereof, into two of the plurality of attachment openings, and mounting device adjusters are interposed between a powerplant-side connection portion and a side frame-side connection portion for adjusting the relative positions of the connection portions.

Abstract: A water purifier that performs back washing extremely effectively even when raw water contains a large amount of impurities includes an attachment main body including an inflow passage into which raw water from an inflow port flows, and first and second outflow passages through which water flows toward outflow ports; and a water purification main body that is attached rotatably to the attachment main body and includes a first flow passage, a second flow passage, and a third flow passage, a first filter member disposed between the first flow passage and the second flow passage and a second filter member disposed between the second flow passage and the third flow passage, wherein, when the attachment main body and the water purification main body are in a rotation position corresponding to a water purification mode, the first flow passage and the second flow passage communicate with the inflow passage and the first outflow passage, respectively, and when the attachment main body and the water purification main

Abstract: A general-purpose frame structure to mount a powerplant to a car body includes four side frames having respective basal ends to be attached to a fore end of a cabin and adapted to extend in the fore-and-aft direction of the car body. Mounting devices are interposed between the side frames and the powerplant. The side frames have surfaces provided with a plurality of attachment openings arranged in a row at specific intervals. Side frame adjusters are configured to be interposed between the cabin and the side frames for adjusting the relative positions of the cabin and the side frames. The mounting devices are fitted, at the side of the side frames thereof, into two of the plurality of attachment openings, and mounting device adjusters are interposed between a powerplant-side connection portion and a side frame-side connection portion for adjusting the relative positions of the connection portions.

Abstract: A water purifier that performs back washing extremely effectively even when raw water contains a large amount of impurities includes an attachment main body including an inflow passage into which raw water from an inflow port flows, and first and second outflow passages through which water flows toward outflow ports; and a water purification main body that is attached rotatably to the attachment main body and includes a first flow passage, a second flow passage, and a third flow passage, a first filter member disposed between the first flow passage and the second flow passage and a second filter member disposed between the second flow passage and the third flow passage, wherein, when the attachment main body and the water purification main body are in a rotation position corresponding to a water purification mode, the first flow passage and the second flow passage communicate with the inflow passage and the first outflow passage, respectively, and when the attachment main body and the water purification main

Abstract: A water purifying device, wherein water purification tubes are combined with a bicycle or a motorcycle having a drive wheel assembled in a body thereof. The purification tubes are mounted on the body, a feed pump is connected to the water purification tubes and a water source is connected to the feed pump through a connector. The drive wheel is connected to the feed pump through the connector. The feed pump is driven by the drive wheel, water source water is fed to the water purification tubes, and water is purified by the water purification tubes for making drinking water.