JP3166349B2 - Toilet bowl washing tank device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toilet flushing tank device for draining (supplying) flush water to a so-called siphon jet flush toilet flushing by a siphon action.

[0002]

2. Description of the Related Art In this type of toilet flush tank device, when a drain valve is separated from a drain valve seat by rotating a lever handle by hand, a drain valve opens and a flush toilet (to be described later, a flush toilet) is used. Flush water is drained to the tank, and in response to the drainage, the float moves down with the drainage from the water storage tank (hereinafter referred to as a tank) to start supplying water from the ball tap into the tank. It has become.

[0003]

In such a structure in which water supply from the ball tap to the tank is started substantially in synchronization with the drainage of the wash water from the tank, the seating time of the drain valve body is delayed by the water supply to the tank. Drain more water than necessary to the toilet bowl as flush water. In addition, since the jet stream is unnecessarily jetted from the injection hole from the beginning of the flow of the ball washing water discharged from the rim water passage, the washing water is wasted when the siphon action is generated.

SUMMARY OF THE INVENTION The present invention has been made in view of the conventional circumstances, and a technical problem thereof is to separate a supply path of washing water to a rim waterway and a jet waterway which are isolated from each other in a toilet and to separate the water supply path from the jet waterway. An object of the present invention is to provide a toilet flushing tank device that generates a siphon effect with a small flushing water amount by delaying the flushing water draining start time to the rim waterway.

[0005]

The technical measures taken to achieve the above-mentioned technical object include a flush toilet having a rim water passage and a jet water passage separated from each other at an inlet,
A water supply flow path having one end connected to the water supply through a constant flow valve and the other end connected to the rim water passage and the water storage tank;
A lever handle interlocking switching valve that is provided in the middle of the water supply flow path and switches the water supply flow path to the rim water passage side and the water storage tank side by forward and reverse rotation of the lever handle, and an upstream side of the switching valve. The ball tap type water supply valve provided in the water supply flow path portion and supplying water to the flow path, and interlocking with the forward / reverse rotation of the lever handle, push down the lever member connected to the float by the forward rotation of the lever handle. A ball-tap-type water supply valve is opened, and the lever handle is reversely rotated by releasing the operation of the lever handle to rotate the lever handle automatically to an initial state. A delay-opening tank drain valve means which is opened after the drainage time of the washing water to drain from the inside of the water storage tank to the jet headrace and is closed by the fixed drainage of the water storage tank. In addition, a linking portion that continues to push down the lever member at the tip of the rotary push portion until the float reaches the fixed amount drainage area of the water storage tank is provided between the rotary push portion and the lever member. The gist consists of:

[0006]

According to the above technical means, the water supply passage is switched to the rim water passage by the forward rotation of the lever handle, and at the same time, the lever member connected to the float is forcibly pushed down by the rotary push portion. To open the ball tap type water supply valve, supply the tap water quantified by the constant flow valve to the water supply flow path, and drain it to the rim water passage as washing water. Then, the tank drain valve means is opened with a delay from the start of drainage of the washing water to the rim water passage. That is, the drainage of the wash water to the jet water supply section is started later than the drainage of the wash water to the rim passage section. In addition, until the water is drained from the tank to the fixed drainage area, water supply to the rim water supply section and water supply to the jet water supply section are continued, and the rotating push section is automatically released due to the natural release of the link with the link section. When the water supply flow path is switched to the tank side after returning to the initial state, water supply is started in the closed tank, and the water supply is continued until the float floats in the fixed water storage area. Therefore, until the ball cleaning water discharged from the rim water passage reaches the sealing of the trap portion, the jet flow is not wasted and the wastewater is rotated by the cleaning water flowing down the ball and the siphon action is performed. Becomes more likely to occur before the jet stream can be ejected.

[0007]

Since the present invention is constructed as described above, the supply of flush water to the jet conduit of the toilet and the supply of flush water to the rim conduit of the toilet are separated, and the supply of flush water to the jet conduit is performed. Of the washing water to the rim canal is delayed from the start of the washing water to the rim canal. I do. Therefore, if part of the supply water in the tank from the ball tap is not drained as extra washing water to the toilet, the jet stream for generating the siphon action is formed from the beginning of the flow of the ball washing water discharged from the rim water passage. It is possible to save a large amount of washing water used at one time without wasteful injection.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the toilet bowl washing tank apparatus of the present invention will be described with reference to the drawings. 1 to 6 show a toilet bowl washing tank device according to the present embodiment.

The toilet flushing tank device A comprises a siphon jet flush toilet 1 in which the rim water passage 11 and the jet conduit 21 are separated, and a delayed valve opening type which is connected to the jet conduit 21 of the flush toilet 1. A water storage tank (hereinafter referred to as a tank) 2 having a tank drain valve means 3 at the bottom, a water supply flow path 4 having one end connected to the water supply and the other end connected to the rim water passage 11 and the tank 2, respectively. The water supply flow path 4 is provided with a ball tap type water supply valve 5 provided in the water supply flow path 4 and a switching valve 6 for switching the water supply flow path 4 to the rim water passage 11 side and the tank 2 side.

As shown in FIG. 5, the flush toilet 1 is a well-known siphon jet toilet and has a rim water passage 11 having a water injection hole facing the ball portion 31 and an entrance of a filth drainage passage communicating with the trap portion 41. The jet head 21 having an injection hole 21a opened to the front is separated from the inlet as a starting point, and the washing water supplied to the rim water passage 11 and the washing water supplied to the jet water passage 21 interfere with each other. It is formed in a cross-sectional structure without any.

The tank 2 is a so-called one-piece type which is integrally formed or integrally fixed to the rear part of the flush toilet 1 or a type which is attached to a chamber wall.

Further, the tank 2 is provided with the tank opening valve means 3 of the delayed valve opening type at one corner portion of the bottom so that the tank 2 can be drained to the jet head 21 ', and has a space inside the fixed water storage area. To the tank 2 and the rim waterway side 1
1 'is provided with a part of a water supply flow path 4 for draining washing water, and a constant flow valve 7, a water supply valve 5 for opening and closing the water supply flow path 4, and a rim water path in the part. A switching valve 6 for switching to the 11 side and the tank 2 side is sequentially arranged from the upstream side.

The switching valve 6 is integrally connected to the lever handle 8 with the center of rotation coincident so that the switching valve body 16 rotates integrally with the rotation operation of the lever handle 8. When is rotated in the positive direction,
The switching valve element 16 is seated on the tank-side water supply valve seat 14 formed in the middle of the water supply flow path 4, and opens the rim-side water supply valve seat 24 formed in a right-angled positional relationship to open the water supply flow path 4. When the lever valve 8 is rotated in the reverse direction (initial state direction) by communicating with the rim water passage 11, the switching valve body 16 rotates and sits on the rim side water supply valve seat 24, while the tank side water supply valve seat
On the other hand, 14 is opened so that the water supply channel can be supplied to the tank 2 from the water discharge port 34.

The water supply valve 5 has a main valve body 25b composed of a movable membrane wall (diaphragm) that moves toward and away from a primary side 15a with respect to a horizontal main valve seat 25a provided in the main body 15,
The main valve body 25b forms a pressure back chamber 35 which is defined by the primary side 15a, and the pressure back chamber 35 is formed in the main valve body 25b by a communication small hole.
A pilot valve 65 for opening and closing the pressure back chamber 35 and the secondary side 15b is linked to a lever member 75 connected to the float 55, and the pilot valve 65 is opened. This is a ball tap type in which the main valve 25 is opened with a pressure balance by the valve.

The pilot valve 65 comprises a rod-shaped pilot valve body 65a having a valve function portion 65a-1 integrally at the upper end and a lower end attached to the lever member 75, and a pilot valve hole 65b.

The rod-shaped pilot valve body 65a is a main body 1
A horizontally elongated hole 65a-2 opened at the outer end protruding from the main body 1 is inserted through the outer wall 15b 'of the secondary side 15b so as to be vertically movable.
A shaft portion 85 through which is inserted is supported by a portion of the lever member 75 that is close to the base end portion, and when the lever member 75 is pressed down, the valve function portion 65a-1 at the distal end is attached to the main valve body 25b. The main valve 25 is opened apart from the pilot valve hole 65b which is opened.

The lever member 75 has a substantially mountain-shaped locking portion 10 ′ having a lower slope 10 a substantially perpendicular to the upper surface in the middle of the upper surface. ′ Is connected to the lever handle 8, and the lever member 75 at the front end of the rotary push portion 9 is moved until the float 55 reaches the fixed drainage area of the tank 2. The linking portion 10 that continues to be pushed down is formed between the rotary pushing portion 9 and the lever member 75.

The rotary pusher 9 rotates together with the lever handle 8 in the forward direction by a predetermined angle to rotate the lever member 8.
The push arm 19 for pushing down the lever 75 and the weight arm 29 for returning the lever handle 8 to the initial state by rotating the lever handle 8 in the reverse direction by releasing the forward rotation operation are bifurcated from the center of rotation of the lever handle 8. When the lever handle 8 is rotated in the forward direction, the pushing arm 19 moves over the locking portion 10 'and is locked to the lower slope 10a. The positional relationship between the pushing arm rod 19 and the engaging portion 10 'is set so that the float 55 descending by the tank draining to the side can continue to the extent of the constant-quantity draining of the tank 2.

The delay valve opening type tank drain valve means 3 is provided with a drain valve seat 23 at an open edge of a drain port 13 opened at the bottom of the tank 2.
And a drain valve body 33 seated on the drain valve seat 23 is integrally provided at the lower end of the vertical rod 43 having a float 43a at the upper end, and the upper end is located above the fixed water storage surface on the drain port 13. And the lower end is a guide and drain hole 53a for the vertical rod 43.
A chamber 53 is defined, a float 43a is accommodated in the chamber 53, and a water outlet 63 for discharging water from an upper open portion into the chamber 53 from the water supply flow path 4 downstream of the switching valve 6 is branched. It is constituted by doing.

The height of the chamber 53, the length of the vertical rod 43, the capacity of the float 43a, the drain hole 53a, etc., in the tank drain valve means 3 of the delayed valve opening type,
The drain valve body 33 is kept seated on the drain valve seat 23 without floating the 43a, and a part of the water supply to the rim water passage 11 is supplied into the chamber 53 through the water discharge port 63 which is branched. The respective conditions are set so that the float 43a floats and the drain port 13 can be opened only after a predetermined time has elapsed when the water stored in the chamber 53 has reached a desired height higher than other portions.

Further, the tank drain valve means 3 of the delayed valve opening type allows the tank 2 to discharge a fixed amount of water, and the guide / drain hole 53a.
When the water in the tank 2 is supplied after the water in the chamber 53 is completely drained from the chamber 53, the water flows into the chamber 53 from the guide / drain hole 53a.

Next, the operation of the toilet bowl washing tank apparatus of this embodiment will be described with reference to FIGS. FIG. 1 shows a state before toilet flushing. When the lever handle 8 is rotated in the forward direction from this state, the tip of the pushing arm rod 19 directly connected to the lever handle 8 is also rotated in the forward direction together with the lever member 75 of the water supply valve 5 while pushing down. The lever member 75 rides over the locking portion 10 'protruding in the middle of the lever member 75 and locks the lower slope 10a. At the same time, switching valve element 16
Also rotates in the forward direction, sits on the tank-side water supply valve seat 24, and switches the water supply flow path 4 to the rim water passage 11 side. That is, when the lever handle 8 is rotated in the forward direction, the water supply valve 5 opens,
Tap water quantified by the constant flow valve 7 is supplied to the rim water passage 11 as washing water.

FIG. 2 shows a state in which the lever handle 8 is rotated in the forward direction. A part of the washing water supplied to the rim water passage 11 starts to be supplied from the water discharge port 63 to the chamber 53 containing the float 43a. The tip of the pushing arm rod 19 is a locking part
Although the lock of the float 55 on the water surface is prevented by continuing the engagement with the lower slope 10a of 10 ', the washing water has not yet been supplied to the jet conduit 21.

FIG. 3 shows a state in which the amount of water necessary to float the float 43a is discharged into the chamber 53, and the drain port 13 is opened with a time lag with respect to the supply of the washing water to the rim water passage 11. ing. The time lag between the start of water supply to the rim water passage 11 and the start of water supply to the jet headrace 21 is determined by the amount of water discharged from the water discharge port 63 per unit time, the capacity of the chamber 63, and the float 43a.
Buoyancy and the like.

FIG. 4 shows that the pushing arm 19, which is unlocked in the range of the fixed amount of drainage of the tank 2, is rotated in the reverse direction by the weight of the weight arm 29 to move the lever handle 8 and the switching valve body 16. This shows a state in which the tank is returned to the initial state and seated on the rim-side water supply valve seat 24, that is, a state in which so-called tank water supply is started. Since the drainage speed of the water stored in the chamber 53 is slightly slower than the other speeds in the tank 2, the water supply in the tank 2 corresponding to the time lag is used as the sealing of the trap portion 41.

Therefore, the toilet flushing tank device A of this embodiment
In the meantime, the drainage time (T2) to the jet headrace 21 is started from the middle of the drainage time (T1) to the rim water passage 11, and the water supply in the tank (T3) is performed before the time of (T2) elapses.
Is started, and the overlapping portion of (T2) and (T3) seals the trap section 41.

The delay valve opening tank drain valve means 3
A solenoid valve (not shown) at the bottom of the tank is opened a predetermined time after a flow rate sensor (not shown) provided in the flow path downstream of the switching valve 6 detects a predetermined amount of water supplied to the rim water passage. It may be constituted by an electric means such as a fixed amount of drainage from the tank to the jet headrace side. In this case, a control circuit for continuing to open the solenoid valve for the time required for the tank capacity to be drained quantitatively (until a predetermined time has elapsed after draining the quantitatively when a large amount of water is sealed in the trap section). A control unit including a calculation circuit for calculating the flow rate based on the detection by the flow rate sensor and an output circuit for outputting to the control circuit when the calculation result reaches a predetermined set flow rate is provided by the electromagnetic sensor and the flow rate sensor (not shown). Associated with a valve (not shown).

[Brief description of the drawings]

FIG. 1 is a front cross-sectional view showing a state without cleaning.

FIG. 2 is a front sectional view of the same, showing a state in which rim cleaning is started by rotating a lever handle forward.

FIG. 3 is a front sectional view showing a state in which jet cleaning is being performed after the rim cleaning.

FIG. 4 is a front sectional view showing a state in which water supply in the tank is started.

FIG. 5 is a partially cutaway side view of the flush toilet.

FIG. 6 shows the drainage time to the rim channel (T1), the drainage time to the jet headrace (T2), and the water supply time to the tank (T1).
3) is a time chart showing the relationship.

[Explanation of symbols]

A: Toilet flush tank device 1: Rinse toilet 11: Rim water channel 21: Jet water channel 4: Water supply channel 3: Delayed valve opening type tank drain valve means 5: Ball tap type water supply valve 6: Switching valve 7 ： Constant flow valve 8 ： Lever handle 9 ： Rotating push part 55 ： Float 75 ： Lever member 2: Water storage tank 10 ： Linking part

────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Keishi Horiuchi 2-1-1, Nakajima, Kokurakita-ku, Kitakyushu-shi, Fukuoka Tochiki Kiki Co., Ltd. (72) Hideo Hirokawa 2, Nakajima, Kokurakita-ku, Kitakyushu-shi, Fukuoka JP-A-6-146366 (JP, A) JP-A-6-146364 (JP, A) Japanese Utility Model Laid-Open No. 60-45775 (JP, U) 58) Fields surveyed (Int.Cl. ⁷ , DB name) E03D 1/30-1/36

Claims (1)

(57) [Claims] 1. A flush toilet having a rim waterway and a jet waterway with different inlets, and one end connected to the water supply through a constant flow valve and the other end connected to the rim waterway. And a water supply passage connected to the water storage tank, and a lever handle interlocking provided in the middle of the water supply flow passage, and switching the water supply passage to the rim water passage side and the water storage tank side by forward and reverse rotation of the lever handle. A switching valve of a type, a ball tap type water supply valve provided in the water supply flow path portion on the upstream side of the switching valve and supplying water to the flow path, and a forward and reverse rotation of the lever handle in conjunction with forward and reverse rotation of the lever handle. A rotating push portion for rotating the lever member connected to the float to open the ball tap type water supply valve by opening and releasing the lever handle to reversely rotate the lever handle to automatically return to an initial state; Jet guide A delay valve type that is communicated to the water section and opens with a delay from the drainage time of the wash water to the rim water passage, drains the water from the water storage tank to the jet water conduit, and is closed by the constant drainage of the water storage tank. Tank drain valve means, and the linking part, which continues to push down the lever member at the tip of the rotary push part until the float reaches the fixed drainage area of the water storage tank, is pivotally pushed. A toilet flushing tank device characterized in that the toilet flushing tank device is constituted between both a part and a lever member.