Classifications

• • E—FIXED CONSTRUCTIONS
  • E03—WATER SUPPLY; SEWERAGE
  • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
  • E03D11/00—Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
  • E03D11/02—Water-closet bowls ; Bowls with a double odour seal optionally with provisions for a good siphonic action; siphons as part of the bowl

Definitions

• the present invention relates to a perched flush toilet, and in particular, to a flush toilet with improved drainage of sewage and filth by flush water.
• a flush-type flush toilet As a flush-type flush toilet, a flush-down type or a siphon-down flush type has been widely used.
• FIG. 7 is a longitudinal sectional view showing a conventional example of a flush toilet of these types
• FIG. 8 is a plan view thereof.
• a water supply chamber 1a communicating with a flush water tank (not shown) is provided at the upper end of the body 1 of the flush toilet, and a refill formed around the upper end of the ball section 2 is provided.
• the water supply room 1a is connected to the water channel 1b.
• a small-diameter water injection hole 1c is provided at the part facing the ball part 2 and the part furthest from the water supply chamber 1a is as shown in Fig. 8.
• five large water holes 1 d will be provided.
• a substantially U-shaped drainage channel 3 is provided downstream of the ball portion 2, and the end of the drainage channel 3 is opened at the bottom of the main body 1 to form a discharge port 3 a.
• the trap is trapped by the sealing water W, which is determined by the highest position of the bottom wall of the drainage channel 3. It is formed . Then, the washing water from the washing water tank is supplied from the water supply chamber 1a to the rim water passage 1b, and the water is supplied from the small-diameter and large-diameter water injection holes 1c and 1d to the borehole. It is released toward the notch part 2.
• the washing water from the small-diameter water injection hole 1c flushes the surface of the ball portion 2 above the sealing water W, and the cleaning water from the large-diameter water injection hole 1d is removed. Then, the water flows into the sealed water W so as to concentrate on the point P shown in FIG. Then, mainly due to the strong flow of the washing water from the large-diameter water injection hole 1d, the sealed water W is pushed out to the drainage channel 3 side, and the wastewater is contaminated. Then, the cleaning water flows together with the waste from the drainage channel 3 to the discharge port 3a, and is discharged.
• a drain port 10 is located at a portion where the flow path is connected from the ball portion 2 to the drain channel 3.
• This drain port 10 is located at the lowest level in the flow path from the ball section 2 to the drain channel 3 and forms the upper end and the left and right circumferences.
• the inner peripheral wall of the roll part 2 normally stands at an angle of 50 ° or more and is strong. Therefore, when the length of the ball portion 2 in the front-rear direction is the same, compared to a design in which the inclination of the inner peripheral wall is made gentler, the drain port 10 is not provided. As the position becomes deeper, the distance from the point P, where the washing water from the large-diameter water injection hole 1 d converges, to the drain port 10 becomes longer.
• the drainage port 10 when the drainage port 10 is set at the lowest position, as shown in FIG. 9, the drainage port 1 for the vertical section occupied by the sealed water W in the ball portion 2 can be obtained.
• the proportion of the open mouth area is relatively small Ku Do that large ⁇ water jar good of c this hole 1 d or et al. of the washing water is a point you concentration of 0 If the distance from P to the drain port 10 is long, the momentum of the washing water concentrated at the point P tends to attenuate before being transmitted to the drain port 10.
• the washing water concentrated at the point P acts on the sealing water W to push it out to the drainage channel 3 side, and as shown in Fig. 9, the washing water flows into the drainage port 10.
• the volume of the sealing water W is large, the force of the washing water pushing the sealing water W is easily dispersed, and the action force for promoting the flow to the drain port 10 side is increased. There is also a limit.
• the present invention has been made in view of such points, and does not increase the supply pressure or the supply amount of the washing water, and does not increase the energy.
• the purpose of the present invention is to provide a flush toilet that can effectively discharge wastewater and waste by using lugi effectively.
• the objective is to provide a flush toilet that can reduce costs by reducing the difficulty of production processing and improving production efficiency.
• the present invention provides a ball portion having an inclined surface inclined downward and a flush water supply channel at a peripheral edge of an upper end of the ball portion.
• a rim water passage formed with a plurality of water injection holes and opening to the ball portion side, and an inlet portion is provided near the bottom portion of the ball portion, and substantially reversed. It consists of a drainage channel formed in a U-shape, and the entrance of the drainage channel is inclined from the base end of the entrance located at the upper position to the end of the entrance located at the lower position.
• the inclined surface is formed almost parallel to the inclined surface near the bottom of the ball portion.
• one of the water holes provided in the rim water passage at a position substantially opposed to the drainage hole is provided with another water hole. It is formed with a larger diameter and is drilled toward the entrance of the drainage channel.
• the inclined surface of the entrance of the drainage channel is formed almost linearly.
• the opening area at the base end of the entrance of the drainage channel is larger than the opening area at the end of the entrance.
• This effect is due to the fact that the opening area of the injection hole provided at the position almost opposite to the drainage channel among the injection holes of the rim water channel is larger than the opening area of the other injection holes. This is more effectively achieved by drilling water holes at the entrance of the drainage channel.
• the sealing area is increased by making the opening area at the base of the entrance of the drainage channel larger than the opening area at the end of the entrance. It can be pushed more effectively inside.
• FIG. 1 is a longitudinal sectional view showing a first embodiment of the present invention
• Fig. 2 is a plan view of the flush toilet shown in Fig. 1 including a cut-away part.
• FIG. 4 is a longitudinal sectional view showing a second embodiment of the present invention.
• FIG. 5 is a plan view of the flush toilet shown in FIG. 4 including a partially cut-away portion.
• Fig. 7 is a vertical sectional view showing a conventional flush toilet
• Fig. 8 is a plan view of the flush toilet shown in Fig. 7 including a partially cutaway part
• Fig. 9 is a sectional view taken along line IX-K in Fig. 7,
• FIGS. 1 to 3 show a flush toilet according to a first embodiment of the present invention.
• the body 1 of the flush toilet is formed with a ball portion 2 having an inclined surface 2a inclined downward and a water supply chamber 1a formed at a peripheral edge of an upper end of the ball portion 2.
• a rim water passage 1 and an inlet 4 are provided near the bottom of the ball portion 2, and a drain passage 3 formed in a substantially inverted U-shape.
• a plurality of small-diameter water injection holes 1c are provided toward the ball portion 2 and at a position facing the inlet portion 4 of the drainage channel 3. Is larger than the opening area of the small-diameter water injection hole 1c.
• the large-diameter water injection hole 1d having the opening area is provided.
• the entrance portion 4 of the drainage channel 3 is formed in a cylindrical shape that is inclined obliquely upward with its opening axis toward the tip end of the toilet body 1 (the right end in FIG. 1).
• the base end 4a is located above the end 4b.
• an inclined surface 4c is formed, which is inclined from the entrance base end 4a toward the entrance end 4b, and the inclined surface 4c is located near the bottom of the ball portion 2. It is formed almost parallel to the inclined surface 2a.
• the slope 4c is almost straight. It is formed in a linear shape.
• the large-diameter water injection hole 1 d drilled in the rim water passage lb is directed toward the inlet 4 of the drainage channel 3 and is flushed from the large-diameter water injection hole 1 d.
• Drainage channel 3 continues from entrance 4, rises diagonally upward toward trap top 3 b, and discharges from a position beyond trap top 3 b.
• the entrance 4 of the drainage channel 3 has a cylindrical shape having an inclined surface 4c.
• the base end 4a is located above the base end 4b, and the distance H from the surface of the sealing water W to the base end 4a of the inlet is equal to the conventional distance h (see Fig. 9). It is getting smaller.
• the cleaning water injected from the large-diameter water injection hole 1d reaches the point P in a concentrated manner, and further flows into the sealing water W to follow the inclined surface of the ball portion 2.
• the washing water is simultaneously pushed into the drainage channel 3 from the inlet end 4a.
• W is smaller than the conventional one, and can more effectively apply the flow force of the washing water injected from the large-diameter water injection hole 1 to the sealed water W. .
• the washing water can pass through the inlet 4 more smoothly. And can be done. Further, by forming the inclined surface 4c in a straight line, the washing water can be more smoothly passed.
• the water head at the entrance 4 of the drainage canal 3 can be reduced, and the water inside the ball 2 from the rim waterway 1b can be reduced.
• the cleaning water is supplied to the water, the force of the cleaning water pressing the sealing water W is effectively transmitted to the drainage channel 3, so that strong cleaning can be performed.
• a stable washing and draining action can be generated only by supplying a relatively small amount of washing water.
• FIGS. 4 and 5 are views showing a second embodiment of the present invention.
• the trap water drain 13 has an inclined rising portion (a portion rising toward the trap top 13b).
• the inclination angle of 13 d is made larger than that of the first embodiment.
• the entrance 14 of the drainage channel 13 is located behind the ball 2 (left side in FIG. 4), and the sealing water W and the washing water are Ri by the drainage that Ki smoothly out and line cormorant this c
• the slope 13d of the trap drainage channel 13 has a large slope, the time required for the washing water to pass over the trap top 13b. And the siphon effect can be generated more quickly.
• the entrance 14 is lower than the entrance base 14a located at the upper position. It has an inclined surface 14c which is inclined toward the entrance end 14b in the position, and the inclined surface 14c is formed almost parallel to the inclined surface near the bottom of the ball portion 2. ing . Also in the present embodiment, the first embodiment can be effectively washed and drained with a small amount of washing water similarly to the first embodiment.
• FIG. 6 is a diagram showing a third embodiment of the present invention.
• This embodiment is the same as the first embodiment described above, except for the structure of the inlet 24 of the drainage channel.
• the opening area at the entrance base 24a is larger than the opening area at the entrance end 24b. It is characterized by being used.
• the inlet 24 has an enlarged inclined cross-sectional shape so that the cross-sectional area increases toward the inlet base 24 a and the inlet end 24 b. I am doing. As a result, the washing water and the sealing water W flow more smoothly into the inlet 24 and only a relatively small amount of the washing water is supplied, so that a stable washing and draining operation can be achieved. Can be generated. Industrial applicability
• the water head at the entrance of the drainage channel can be reduced, and the fluidity of washing water from the rim waterway can be effectively increased.
• the fluidity of washing water from the rim waterway can be effectively increased.
• the present invention is applied to a relatively large flush toilet that additionally uses the flow energy of the wash water from the rim water passage to perform washing and drainage operations. Has excellent effects

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• Health & Medical Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Hydrology & Water Resources (AREA)
• Public Health (AREA)
• Water Supply & Treatment (AREA)
• Sanitary Device For Flush Toilet (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

Family

ID=18277745

Family Applications (1)

Country Status (8)

Cited By (1)

Families Citing this family (12)

Citations (3)

Family Cites Families (4)

• 1993
  • 1993-12-28 JP JP5334469A patent/JPH07189324A/ja active Pending
• 1994
  • 1994-12-26 CN CN94191282A patent/CN1118179A/zh active Pending
  • 1994-12-26 KR KR1019950703591A patent/KR960701267A/ko not_active Ceased
  • 1994-12-26 EP EP95903958A patent/EP0686731A4/en not_active Withdrawn
  • 1994-12-26 CA CA002157044A patent/CA2157044A1/en not_active Abandoned
  • 1994-12-26 SG SG1996003588A patent/SG72628A1/en unknown
  • 1994-12-26 WO PCT/JP1994/002219 patent/WO1995018274A1/ja not_active Ceased
  • 1994-12-27 TW TW083112222A patent/TW255934B/zh active

Patent Citations (3)

Non-Patent Citations (1)

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