JP2012172388A - Toilet bowl device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a toilet bowl device capable of sealing water while inhibiting overflow from the drainage port of a trap part.SOLUTION: The toilet bowl device includes the cylindrical trap part 1 having the drainage port 1a at the downstream end, and communicated and connected at its upstream end with and to a drainage part 4 extended from a bowl part 2, the trap part 1 being attitude-changeable between a water sealing attitude where the drainage port 1a is turned upward and a water draining attitude where it is turned downward. It further includes a water level sensor 10 for detecting a water level at the downstream end of the trap part 1 when in the water draining attitude. When the water level detected by the water level sensor 10 is a reference water level, water supply is stopped.

Description

  The present invention relates to a toilet device capable of switching between sealed water and drainage by changing the posture of a trap portion.

  As a toilet device that can save water, there is a so-called turn trap type toilet device (see Patent Document 1).

  In this toilet device, the cylindrical trap portion is rotated, sealing is performed with the trap port drain port facing upward, and drainage is performed with the drain port facing downward. In the following, the posture of the trap part with the drain port facing upward as described above is referred to as “sealing posture” (see FIG. 1), and the posture with the drain port facing downward is referred to as “drainage posture” (see FIG. 2). ).

  During normal times, the trap portion is kept in this sealed position. At this time, water is stored in a bowl portion and a trap portion in a sealed water position communicating with the bowl portion, thereby sealing water between the external drain pipe. And at the time of drainage, the trap portion is rotated by the power of the motor to change the posture to the drainage posture, and the accumulated water and filth in the bowl portion are discharged to the external drain pipe side at once through the drain port of the trap portion. When the discharge of the accumulated water and filth is finished, the trap part is returned to the sealed position again, and water is supplied into the bowl part. Sealing is performed again by the supplied water.

  At this time, if there is a surplus in the water supplied into the bowl portion, it overflows from the drain port of the trap portion in the sealed position.

Japanese Patent Laid-Open No. 9-256447

  As described above, when water is supplied into the bowl portion after drainage, if there is an excess in the supply amount, overflow occurs from the drain port of the trap portion in the sealed position, which becomes excess drainage. In particular, in the case of supplying water into the bowl portion directly connected to the water supply, the amount of water supply varies depending on the water supply pressure, so that overflow tends to occur when the water supply pressure is high.

  This invention is invented in view of the said problem, Comprising: It aims at providing the toilet device which can aim at water sealing, suppressing the overflow from the drain outlet of a trap part.

  In order to solve the above-described problems, the present invention is configured such that an upstream end of a cylindrical trap part having a drain outlet at a downstream end is connected to a drain pipe extending from a bowl, and the trap is In the toilet apparatus provided with a posture changeable between a sealing posture in which the drain port peels upward and a draining posture in which the drain port peels downward, the downstream end portion of the trap portion when in the sealing posture It is assumed that a water level sensor for detecting the water level at the water level is provided, and water supply is stopped when the water level detected by the water level sensor becomes a reference water level.

  The present invention has an effect that water sealing can be achieved while suppressing overflow from the drain port of the trap portion.

It is a schematic sectional side view of the toilet device of one Embodiment of this invention, and shows the time when a trap part exists in a sealing posture. It is a schematic sectional side view of a toilet device same as the above, and shows the time when the trap portion is in a draining posture.

  The present invention will be described based on embodiments shown in the accompanying drawings.

  1 and 2 show a toilet apparatus as an example of an embodiment of the present invention. FIG. 1 shows a state in which the trap unit 1 is held in a sealed posture, and FIG. 2 shows a state in which the trap unit 1 is held in a draining posture.

  The toilet apparatus according to the present embodiment includes a bowl portion 2 having a drainage port 3 at the bottom, a drainage pipe portion 4 extending horizontally from the drainage port 3, and a deformable that is attached to a downstream end of the drainage pipe portion 4. The trap part 1 and the case part 5 which accommodates the trap part 1 are comprised. Although not shown, as a water supply means for supplying water into the bowl part 2, a system for supplying water into the bowl part 2 by direct connection with water is used.

  The trap portion 1 is formed of a cylindrical member having an accordion shape, and the trap portion is interposed via the drain pipe portion 4 by fitting and fixing the downstream end portion of the drain pipe portion 4 to the upstream end opening of the trap portion 1. 1 and the bowl part 2 are connected in communication. A drain port 1 a is opened at the downstream end of the trap unit 1.

  The trap part 1 is arranged in the internal space S of the case part 5. The case portion 5 has a case drain port 6 at the bottom thereof, and the case drain port 6 is connected to an external drain pipe (not shown). In other words, the internal space S of the case portion 5 that accommodates the trap portion 1 in a freely changeable posture is connected to the external drain pipe via the case drain port 6.

  The posture changing means for changing the posture of the trap portion 1 includes a motor (not shown) arranged on the side of the case portion 5 and an arm (not shown) rotated by the rotational power from the motor. Become. The tip of the arm is connected to the downstream end of the trap unit 1, and the posture of the trap unit 1 is changed as the arm rotates.

  The upstream end portion of the trap portion 1 is fitted and fixed to the drain pipe portion 4 as described above, with the upstream end opening facing the horizontal direction. On the other hand, the downstream end portion of the trap portion 1 is rotated around the rotation axis of the arm so that the drain port 1a moves between a state where the drain port 1a is peeled upward and a state where the drain port 1a is peeled downward. Here, “upper” means not only directly above but also obliquely above, and similarly, “lower” here means not only directly below but also obliquely below.

  As shown in FIG. 1, the sealing position of the trap portion 1 is a posture in which the downstream end portion is lifted to a position higher than the upstream end portion and bent in an arc shape when viewed from the side. The drainage posture of the trap portion 1 is a posture in which the downstream end portion is lowered below the upstream end portion and bent in an arc shape when viewed from the side as shown in FIG.

  In the toilet device of this example, the water level sensor 10 for the trap unit 1 is arranged on the ceiling surface of the case unit 5. The water level sensor 10 detects the water level at the downstream end of the trap unit 1 when the trap unit 1 is in the sealed position shown in FIG. This water level sensor 10 uses a float switch, and a stem 11 suspended from the ceiling surface of the case portion 5 and a float 12 slidably attached to the stem 11 within a predetermined range above and below. It consists of.

  When the trap portion 1 is in a sealed position with its drain port 1a facing upward, the float 12 is inserted into the downstream end of the trap unit 1 through the drain port 1a. The float 12 is normally at the lowest position in the upper and lower predetermined ranges, and at this time, the float switch is turned off. On the other hand, if the float 12 floats on the water surface and moves upward beyond a predetermined amount, the float switch is turned on. It is detected that the water level in the downstream end of the trap unit 1 has reached the reference water level at the timing when the float switch is switched from OFF to ON. The reference water level here is set to an appropriate water level just before the overflow occurs.

  A control unit (not shown) provided in the toilet device of the present example controls posture change and water supply of the trap unit 1 and includes a water level sensor 10 connected to the control unit. When the water level sensor 10 detects that the water level in the trap unit 1 has reached the reference water level, the control unit is configured to stop water supply from the water supply to the bowl unit 2 at that timing.

  In the toilet apparatus of this example, the control unit holds the trap unit 1 in a normally sealed position, and performs water sealing by filling the trap unit 1 with water. At the time of drainage, the arm is rotated by a motor to change the posture of the trap unit 1 to the drainage posture. As a result, the accumulated water and filth in the bowl portion 2 are discharged to the internal space S of the case portion 5 through the drain port 1 a and further to the external drain pipe through the case drain port 6.

  Next, the control unit rotates the arm in the reverse direction by the motor, returns the trap unit 1 in the draining posture to the sealed state again, and supplies water from the tap water into the bowl unit 2. When the water level in the bowl part 2 rises, the water level in the trap part 1 communicating with the bowl part 2 also rises. When the water level reaches the reference water level, the control unit that detects this by the water level sensor 10 supplies water from the water supply. Stop immediately.

  Therefore, the trap portion 1 can be filled with water after suppressing overflow from the drain port 1a of the trap portion 1 as much as possible. As a result, both water sealing and water saving can be achieved.

  As described above, the toilet device of the present example is configured such that the upstream end portion of the cylindrical trap portion 1 having the drain port 1a at the downstream end portion is connected to the drain pipe portion 4 extending from the bowl portion 2. The toilet device is provided with the trap portion 1 so that the posture can be freely changed between a sealed posture in which the drain port 1a peels upward and a drainage posture in which the drain port 1a peels downward. And the water level sensor 10 which detects the water level in the downstream end part of the trap part 1 when it is in a water-sealing posture is provided, and water supply is stopped when the water level detected by the water level sensor 10 becomes a reference water level. Provided.

  Thereby, according to the toilet device of this example, after the overflow from the drain outlet 1a of the trap part 1 is suppressed as much as possible and water is saved, the inside of the trap part 1 is filled with water and sealed. it can.

  Of course, the present invention is not limited to the embodiment. For example, the water level sensor 10 is not limited to the configuration using the float switch as long as it can detect the water level at the downstream end of the trap unit 1 in the sealed position. Therefore, for example, as the water level sensor 10, a non-contact type water level sensor that can detect the water level in a non-contact manner may be installed on the ceiling surface of the case unit 5, or a contact type water level sensor other than the float switch may be arranged. Good. For other configurations, appropriate design changes can be made within the range intended by the present invention.

1 Trap part 1a Drain port 2 Bowl part 4 Drain pipe part 10 Water level sensor

Claims (1)

An upstream end portion of a cylindrical trap portion having a drain outlet at a downstream end portion thereof is connected to a drain pipe portion extending from the bowl portion, and the trap portion is sealed with the drain port facing upward. In the toilet apparatus provided with a posture changeable between a drainage posture in which the drain port is peeled downward, a water level sensor that detects a water level at the downstream end of the trap portion when in the sealed posture, A toilet apparatus provided to stop water supply when a water level detected by the water level sensor becomes a reference water level.

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