JP5508653B2 - Device for preventing sewage from splashing into a urinal or hand-washer for a vehicle - Google Patents

Description

  The present invention relates to an apparatus for preventing sewage spout from a sewage pipe connected to the urinal or the like in a urinal or a hand-washer installed in a vehicle.

  FIG. 3 shows a waste disposal apparatus mounted on, for example, a railway vehicle. In the waste disposal apparatus, a Western-style toilet 1 or a hand-washing toilet or a urinal 2 is installed in the vehicle, and a waste tank for collecting excrement therefrom. 3 is installed under the floor, and the Western-style toilet (toilet) 1 and the sewage tank 3 are connected by a sewage pipe 7 via a discharge valve 4, a transfer tank 5 and a transfer valve 6, and the urinal 2 The sewage tank 3 is connected by a sewage pipe 8.

The sewage tank 3 and the sewage pipe 8 are provided with an exhaust pipe 9 and a deodorizing filter 10, respectively.

  However, since the discharge port of the urinal 2 and the sewage pipe 8 communicate with each other, the sewage pipe connected to the urinal 2 is external pressure generated when the vehicle travels at a high speed or drainage pressure from the urinal. 8, the sewage in the sewage tank 3 may travel along the sewage pipe 8 and spout into the urinal 2.

  The present invention eliminates the above disadvantages.

The apparatus for preventing splashing of sewage into a urinal or a hand-washer of the present invention is provided in a sewage pipe movably connected to a lower outlet of the urinal or hand-washer of a vehicle, and has a spherical shape that is more buoyant than water. And a lid having a hole smaller than the diameter of the ball that closes the discharge port, and a fall prevention means for preventing the ball from falling into a sewage tank provided at a lower end of the sewage pipe. The drop prevention means includes a cylindrical main body having an outer diameter smaller than an inner diameter of the sewage pipe, which is provided on a lower surface of the lid in the sewage pipe and allows the ball to be moved up and down. Smaller than the diameter of the ball provided on the lower end of the cylindrical body, and a collar part sandwiched between the lower surface of the lid and the upper end of the discharge port. A lid having a hole, and a side surface of the cylindrical body; When the sewage in the sewage tank does not go up into the sewage pipe, the ball is located at the lower end of the cylindrical main body, and from the urinal or hand-washer When water flows through the opening and into the sewage pipe and the sewage in the sewage tank rises up the sewage pipe to the lower discharge port, the ball rises due to buoyancy and the lid The sewage is not sprayed into the urinal or the hand-washer.

  Further, the ball and the fall prevention means are made of polytetrafluoroethylene.

According to the present invention, even if the external pressure due to the vehicle traveling at high speed or the drainage pressure from the urinal is applied to the sewage pipe connected to the urinal or the hand-washer, the sewage in the sewage tank remains in the urinal. Or there is a big advantage that it does not spout into a hand-washing machine.

  Further, since the balls and the fall prevention means are made of polytetrafluoroethylene, urine stones, scales and the like due to drainage are not adhered.

FIG. 1 is a longitudinal perspective view of a device for preventing sewage from splashing into a urinal or a hand-washer of a vehicle according to the present invention. FIG. 2 is an exploded perspective view of the apparatus for preventing sewage from splashing into a urinal or hand-washer of a vehicle according to the present invention. FIG. 3 is a schematic view of the waste disposal apparatus.

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

As shown in FIGS. 1 and 2, the apparatus for preventing sewage from splashing into a urinal or a hand-washer of a vehicle according to the present invention includes a sewage pipe 8 connected to a lower outlet 12 of a main body 11 of the hand-washer or urinal 2. A hollow spherical check valve ball 13 made of polytetrafluoroethylene (PTFE), which has a buoyancy rather than sewage, is inserted in the upper and lower sides of the sewage, and the discharge port 12 is closed. A rubber lid 15 having a smaller circular drain hole 14 and the ball 13 are prevented from dropping in the sewage pipe 8 and falling into the sewage tank 3 provided at the lower end of the sewage pipe 8. Therefore, it comprises the PTFE fall prevention means 16 provided in the lower discharge port 12 or the sewage pipe 8, and the fall prevention means 16 has a diameter substantially equal to the diameter of the ball 13. Move up and down Allowed to insert into standing, between which the tubular body 17 of smaller outer diameter than the inner diameter of the sewer piping, is provided on the upper end peripheral surface of the tubular body 17, the upper end of the lower surface and the discharge port 12 of the lid 15 And a lid portion 20 provided at the lower end of the cylindrical main body 17 and having a circular hole 19 smaller than the diameter of the ball, and the cylindrical main body 17. And a plurality of drainage openings 21 provided on the side surfaces of the drainage.

  In addition, 22 is the eye plate provided in the said discharge port.

Since the apparatus for preventing sewage spouting into a urinal or a hand-washer of the present invention is configured as described above, there is no external pressure due to high-speed traveling of the vehicle or drainage pressure from the toilet, and sewage in the sewage tank 3 is not present. If the ball 13 does not go up into the sewage pipe 8, the ball 13 is located at the lower end of the cylindrical body 17, and in this state, water from the hand-washing basin or the urinal 2 flows to the lower drainage port 12. If, drain hole 14 of the water is above the lid 15 through the drain openings 21 of the tubular body 17, flows in the sewer piping 8 downwards, the dirty water tank 3 provided at the lower end of the sewer piping 8 It begins to flow.

Further, when external pressure due to high-speed driving of the vehicle or drainage pressure from a toilet is applied, and the sewage in the sewage tank 3 rises to the upper part in the sewage pipe 8, the ball rises due to the buoyancy of the sewage, When the ball 13 further rises, the ball 13 presses and closes the drain hole 14 of the rubber lid 15, so that the sewage does not spout into the hand-washer or the urinal 2.

  According to the present invention, the sewage in the sewage tank 3 remains in the urinal even if the external pressure due to the vehicle traveling at high speed or the drainage pressure from the urinal is applied to the sewage pipe 8 connected to the urinal 2. There is a big benefit that it will not be blown into the 2.

  Further, since the balls 13 and the fall prevention means 16 are made of polytetrafluoroethylene, urine stones, scales, etc. due to drainage are not adhered.

DESCRIPTION OF SYMBOLS 1 Western style toilet 2 Urinal 3 Sewage tank 4 Drain valve 5 Transfer tank 6 Transfer valve 7 Sewage pipe 8 Sewage pipe 9 Exhaust pipe 10 Deodorizing filter 11 Main body 12 Lower discharge port 13 Check valve ball 14 Drain hole 15 Lid 16 Fall prevention means 17 cylindrical body 18 collar 19 hole 20 lid 21 drainage opening 22 eye plate

Claims (2)

A spherical ball having buoyancy than water, which is movably provided in a sewage pipe connected to a lower outlet of a urinal or a hand-washer, and a hole smaller than the diameter of the ball that closes the outlet. And a lid having a fall prevention means for preventing the ball from falling into a sewage tank provided at the lower end of the sewage pipe,
The fall prevention means includes a cylindrical main body having an outer diameter smaller than the inner diameter of the sewage pipe, which is provided on the lower surface of the lid in the sewage pipe and allows the ball to be moved up and down. A flange provided on the peripheral surface of the upper end, sandwiched between the lower surface of the lid and the upper end of the discharge port, and a hole provided at the lower end of the cylindrical main body that is smaller than the diameter of the ball. A lid having a plurality of openings provided on the side surface of the cylindrical body,
When the sewage in the sewage tank does not go up into the sewage pipe, the ball is located at the lower end of the cylindrical body, and the water from the urinal or hand-washer passes through the opening, Flows into the sewage pipe,
When sewage in the sewage tank rises along the sewage pipe to the lower discharge port, the ball rises due to buoyancy and closes the hole in the lid, and the sewage enters the urinal or hand-washer A device for preventing sewage from being sprayed into a urinal or a hand-washer for a vehicle, characterized by not being sprayed. 2. The apparatus for preventing sewage from splashing into a urinal or hand-washer for a vehicle according to claim 1, wherein the ball and the fall prevention means are made of polytetrafluoroethylene .

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