JP5074370B2 - Wastewater control mechanism for toilet tank - Google Patents

Description

  The present invention relates to a toilet tank drainage control mechanism for draining water stored in a water tank in a flush toilet, stopping drainage operation after draining, and starting water storage again. The present invention relates to an adjustable drainage control mechanism for a toilet tank.

In the flush tank, there is generally a drainage control mechanism for the toilet tank to drain the water stored in the tank, stop the drainage operation after draining, and start the storage again, and the amount of water stored in the tank. A water supply control mechanism (usually a ball tap control mechanism equipped with a float) is provided that stops the supply of water into the water tank when the amount reaches a fixed amount. Among these, as the drainage control mechanism for the toilet cistern, when the cleaning handle is rotated, the float valve is pulled up through the chain, the draining operation is started, and the operating force applied to the cleaning handle is released. Then, the drainage control mechanism of the structure which a float valve descend | falls, a drain outlet is closed, and drainage operation is complete | finished is known (patent document 1).
JP 2001-73429 A

  In recent years, various needs have arisen for each place where toilets are installed, and in particular, demands for saving water resources are increasing. However, in the conventional toilet water tank drainage control mechanism as described above, the amount of water drained per use of the toilet is predetermined, and the amount of drainage per time is adjusted according to the needs of each toilet installation location. It was difficult to do.

  In view of such a current situation, an object of the present invention is to drain a water stored in a water tank in a flush toilet, and in a toilet water tank drain control mechanism for stopping a drain operation after draining and starting water storage again, The object is to provide a drainage control mechanism capable of adjusting the amount of drainage per cycle.

In order to solve the above problems, a drainage control mechanism for a toilet tank according to the present invention includes a valve body capable of opening and closing a drain outlet of a drain pipe that opens in the toilet tank, and an upper support rod extending upward from the valve body. An upper guide disposed in the toilet water tank to allow the upper support tub to move in the vertical direction and restrict movement in the horizontal direction; and a float fixed to the upper support tub via a fixing means. The fixing means includes a fixing position adjusting mechanism for adjusting a fixing position of the float to the upper support rod, and the upper guide is provided at an arm portion and one end of the arm portion, A rail part that allows movement of the upper support rod in the vertical direction and restricts movement in the horizontal direction, and a ring mounting base provided on the side surface of the overflow pipe provided at the other end of the arm part can be fitted. It consists those characterized by being formed from a formed fitting portion.

  Such a toilet water tank drainage control mechanism according to the present invention is provided with a fixed position adjusting mechanism that adjusts the fixed position of the float to the upper support trough, so that the toilet can be installed by adjusting the float fixed position. The amount of drainage can be finely adjusted according to the circumstances of each place. For example, in a toilet installation place where there is a strong demand for water saving, it is possible to meet the need for water saving by setting a small amount of drainage per time.

  In the toilet tank drainage control mechanism of the present invention, it is preferable that the inside of the valve body is formed hollow and an opening is provided on the lower surface of the valve body. In this way, when draining after use of the toilet, when the valve body is exposed to the atmosphere and floats on the water surface, the water can enter the valve body at an appropriate speed from the opening provided on the lower surface of the valve body. Therefore, it is possible to prevent a variation in time until the valve body settles in water and closes the drain port, and to adjust the amount of drainage per time relatively easily.

  Furthermore, in the toilet water tank drainage control mechanism of the present invention, it is preferable to form the outer shape of the upper surface of the valve body in a tapered shape. The upper surface portion of the valve body is likely to be subjected to a force caused by the momentum of the water flow from the water supplied to the toilet water tank. If this force is too strong, the valve body may be strongly pressed against the drain outlet. As described above, if the valve body is strongly pressed against the drainage port, the drainage control mechanism may not operate normally, but the outer shape of the upper surface of the valve body is formed into a tapered shape, It is possible to disperse the direction of the force due to the momentum of the water flow received by the side portion, and to ensure the normal operation of the drainage control mechanism.

  In the toilet tank drainage control mechanism of the present invention, it is preferable that the fixing means is fixed by pressing the float to the upper support rod by an elastic force. For example, the upper support rod is formed of a relatively hard material such as FRP, the float is formed of a relatively soft material such as polypropylene, and no play is allowed between the outer diameter of the upper support rod and the inner diameter of the float. With such a design, fixing by the elastic force is possible. By adopting such a fixing method, the work of attaching the float to the upper support rod can be performed without requiring any tools, and the installation work of the drainage control mechanism can be facilitated.

  Moreover, it is preferable that the upper support rod has a substantially C-shaped cross section. By forming the cross section of the upper support rod in such a shape, it becomes possible to insert the upper guide into the hollow portion of the substantially C-shaped cross section of the upper support rod, and the horizontal structure of the upper support rod with a simple structure. Movement in the direction can be restricted. Furthermore, the float can be more reliably fixed by forming the upper support rod with a flexible material.

In the toilet tank drainage control mechanism of the present invention, the upper guide is provided at an arm portion and one end of the arm portion, and allows the upper support rod to move in the vertical direction and moves in the horizontal direction. It is formed from a rail portion to be regulated and a fitting portion which is provided at the other end of the arm portion and which is formed so as to be fitted to a ring mounting base provided on the side surface of the overflow pipe . In general toilet tanks, an overflow pipe is provided in the toilet tank to prevent water leakage outside the tank when a ball tap breaks down. Is preferred. A certain type of toilet cistern is passed through a chain consisting of a chain connected to a spherical rubber float valve that opens and closes a drain outlet, and the float lifted when the washing handle is rotated. A ring for positioning the floating position of the valve is attached to the overflow pipe via a ring mounting base. When remodeling such an existing toilet water tank to the water-saving specification, it is preferable to use the ring mounting base so that the upper guide does not move in the vertical direction on the overflow pipe. For example, it is preferable to provide an engaging portion for preventing the fitting portion from falling off the ring mounting base.

  Further, in the toilet tank drainage control mechanism of the present invention, the float includes a gap for preventing the arm portion and the float from contacting each other when the lower surface of the float is further lowered than the upper surface of the arm portion. Is preferably provided. By providing such a gap, the fixing position of the float to the upper support rod is not restricted by the installation position of the upper guide. In other words, it is possible to fix the float to the upper support rod so that the lower surface of the float comes below the upper surface of the arm portion of the upper guide.

  Furthermore, the toilet tank drainage control mechanism of the present invention includes a lower support rod extending downward from the valve body, and is disposed in the drain pipe to allow the lower support rod to move in the vertical direction and to move in the horizontal direction. It is preferable to provide a lower guide for regulating. If the upper support rod to which the valve body and the float are fixed is simply supported by the upper guide, the drainage control mechanism may cause horizontal movement in the horizontal direction due to the water flow in the toilet water tank. Therefore, it is preferable to further provide a lower support rod extending downward from the valve body, and to provide a lower guide that restricts the movement in the horizontal direction while allowing the lower support rod to move in the vertical direction.

  In the toilet tank drainage control mechanism according to the present invention, it is preferable that the upper and lower support rods are threaded at the end on the valve body side and screw-connected to the valve body side. By connecting the upper and lower support rods to the valve body in this way, the work of installing the drainage control mechanism of the present invention in the toilet water tank can be facilitated.

  In the toilet tank drainage control mechanism according to the present invention, it is preferable that the outer shape of the lower surface of the valve body is formed in a shape formed of a part of a substantially spherical surface. By forming the lower surface of the valve body in such a shape, the valve body can reliably close the drain port with respect to drain pipes having various diameters. Furthermore, it is possible to deal with more drainage pipes by providing a flange that protrudes in the direction of enlarging the outer diameter of the valve body at the maximum diameter portion of the valve body.

  According to the toilet tank drainage control mechanism according to the present invention, since a fixed position adjusting mechanism for adjusting the position of the float to the upper support rod is provided, by adjusting the float fixing position, each toilet installation location The amount of drainage can be finely adjusted according to the circumstances, and it becomes possible to meet the need for water saving. The float is fixed to the upper support rod by elastic force, or the cross section of the upper support rod is formed in a substantially C shape, or the upper guide is formed of an arm portion, a rail portion, and a fitting portion, Alternatively, it is possible to facilitate the installation work of the toilet tank drainage control mechanism of the present invention by screw-connecting the valve body side ends of the upper and lower support rods to the valve body.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
1A and 1B show a toilet tank drainage control mechanism according to an embodiment of the present invention, wherein FIG. 1A is a front view and FIG. 1B is a plan view. In FIG. 1 (a), a toilet tank drainage control mechanism 1 is capable of opening and closing a drainage pipe 2. The silicon valve body is formed with a tapered upper surface and a flange 12 at the maximum diameter portion. 3, an upper support rod 4 extending upward from the valve body 3, an upper guide 5 that allows the upper support rod 4 to move in the vertical direction and restricts movement in the horizontal direction, and an upper support rod 4. The float 6 is installed in the toilet tank. One end of the upper guide 5 is fixed to the overflow pipe 7 by being fitted to a ring mounting base 8 provided on an overflow pipe 7 branched from the drain pipe 2 and extending upward. 4 is inserted into a hollow portion inside. Connected to the vicinity of the lower end of the upper support rod 4 is a strip 9 that is pulled up when a cleaning handle (not shown) is rotated. A ring 10 is attached to the overflow pipe 7 via a ring mounting base 8, and an upper support rod 4 and a strip 9 are passed through the inside of the ring 10. When the cleaning handle is rotated and the strip 9 is pulled upward, the valve body 3 rises to the height at which the ring 10 is provided. At this time, since the drain port 11 of the drain pipe 2 is opened, drainage from the toilet tank is started through the drain port 11.

  In Fig.1 (a), the water surface falls gradually, while the waste_water | drain from a toilet tank is continuing. And if the water surface in a toilet tank falls below the height of the float 6, the float 6 comes to be exposed on the water surface. Then, since the buoyancy that has been applied to the float 6 does not work, the valve body 3 and the upper support rod 4 that move in the vertical direction in conjunction with the float 6 move downward as the water level decreases. And if the valve body 3 descend | falls to the height of the drain outlet 11, the drain outlet 11 will be closed and the drainage from a toilet tank will be complete | finished. Thus, in this embodiment, the water surface is lowered while the float 6 is exposed and floated on the water surface, and when the valve body 3 is lowered to the height of the drain port 11, the float 6 is accurately removed from the toilet water tank. Draining ends. Thus, by adjusting in advance the position (fixed height) at which the float 6 is fixed to the upper support rod 4, the amount of drainage per toilet use can be finely adjusted.

  In FIG.1 (b), the cross section of the upper support rod 4 is formed in the substantially C shape, and has a hollow part inside. The upper guide 5 is provided at one end of the arm portion 13, the arm portion 13, the rail portion 14 that regulates the movement in the horizontal direction while allowing the upper support rod to move in the vertical direction, and the overflow pipe 7. And a fitting portion 15 to be fitted. The upper guide 5 is formed in a substantially T shape from the arm portion 13 to the rail portion 14, and this substantially T-shaped portion is inserted into the hollow portion from the uppermost end of the upper support rod 4. The upper guide 5 does not come out of the gap of the substantially C-shaped cross section of the upper support rod 4. Further, the upper support rod 4 and the float 6 are fixed by being pressed against each other by an elastic force. Since the float 6 is fixed to the upper support rod 4 by such elastic force, the fixing position of the float 6 can be adjusted without using a special tool. The float 6 is provided with a gap 16 for preventing the arm portion 13 and the float 6 from coming into contact when the lower surface of the float is further lowered from the upper surface of the arm portion 13. Since such a gap 16 is provided, the arm 13 of the upper guide 5 does not interfere with the movement when the float 6 moves up and down.

  FIG. 2 shows the toilet tank drainage control mechanism of FIG. 1, and is a cross-sectional view seen from the AA direction of FIG. The inside of the valve body 3 is formed hollow, and an opening 17 is provided on the lower surface thereof. A lower support rod 18 extending downward from the valve body 3 through the opening 17 is provided, and the lower guide 21 provided on the inner surface of the drain pipe 2 allows the lower support rod 18 to move in the vertical direction. Its horizontal movement is restricted. The end of the lower support rod 18 on the valve body 3 side is formed as a male screw, and is screwed to a support rod fixing member 19 provided on the valve body 3 side. Similarly, the end portion of the upper support rod 4 is also formed as a male screw, and is screw-connected to a support rod fixing member 19 provided on the valve body 3 side. Further, the upper guide 5 is provided with a claw-like engaging portion 20, and the fitting state with the ring mounting base 8 is released due to the influence of water flow or vibration in the toilet water tank, and the upper guide 5 falls off the overflow pipe 7. Is prevented. Further, by providing such an engaging portion 20 in the upper guide 5, the upper guide 5 can be reliably fixed to the overflow pipe 7 without using a special tool. Furthermore, the outer shape of the lower surface of the valve body 3 is formed in a shape that is formed of a part of a substantially spherical surface. Since the lower surface of the valve body 3 is formed in such an outer shape, the valve body 3 can close the drain pipe of any shape. In particular, by setting the maximum diameter portion of the valve body 3 to 57 mm or more, it is possible to deal with almost all drain pipes that conform to existing standards.

  FIG. 3 is a plan view of the lower guide 21 as viewed from above in FIG. 2 in the present embodiment. The lower guide 21 includes a guide tube 22 through which the lower support rod 18 is inserted so as to be movable only in the vertical direction, and a support 23 that connects the guide tube 22 and the inner surface of the drain pipe 2.

  The toilet tank drainage control mechanism according to the present invention is applicable to all types of flush toilets.

The drainage control mechanism for toilet tanks concerning one embodiment of the present invention is shown, (a) is a front view and (b) is a top view. It is sectional drawing which showed the drainage control mechanism for the toilet tank of FIG. 1, and was seen from the AA direction of FIG.1 (b). It is the top view which looked at the lower guide 21 of FIG. 2 from the upper direction of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Toilet tank drainage control mechanism 2 Drain pipe 3 Valve body 4 Upper support rod 5 Upper guide 6 Float 7 Overflow tube 8 Ring mounting base 9 Strip body 10 Ring 11 Drainage port 12 Gutter portion 13 Arm portion 14 Rail portion 15 Fitting portion 16 Gap 17 Opening 18 Upper support rod 19 Support rod fixing member 20 Engagement portion 21 Lower guide 22 Guide tube 23 Support

Claims (11)

A valve body capable of opening and closing a drain outlet of a drain pipe that opens in the toilet water tank, an upper support rod extending upward from the valve body, and an upper support rod disposed in the toilet water tank to allow vertical movement of the upper support rod And an upper guide that restricts movement in the horizontal direction, and a float that is fixed to the upper support rod via a fixing means, and the fixing means determines the position at which the float is fixed to the upper support rod. It has a fixed position adjustment mechanism to adjust, and the upper guide is provided at the arm part and one end of the arm part, allowing the upper support rod to move in the vertical direction and restricting the movement in the horizontal direction. A toilet tank comprising: a rail portion to be engaged with a ring mounting base provided on the side surface of the overflow pipe, and a fitting portion formed so as to be fitted thereto for Water control mechanism.   The toilet water tank drainage control mechanism according to claim 1, wherein the inside of the valve body is formed hollow and an opening is provided on a lower surface of the valve body.   The drainage control mechanism for a toilet tank according to claim 1 or 2, wherein an outer shape of an upper side surface of the valve body is formed in a tapered shape.   The toilet tank drainage control mechanism according to any one of claims 1 to 3, wherein the fixing means presses and fixes the float to the upper support rod by an elastic force.   The toilet tank drainage control mechanism according to any one of claims 1 to 4, wherein a cross section of the upper support rod is formed in a substantially C-shape. The toilet water tank drainage control mechanism according to any one of claims 1 to 5, wherein the fitting portion is provided with an engagement portion for preventing the drop-off from the ring mounting base. Said float, when the lower surface of the float is further lowered than the upper surface of the arm portion, a gap for the arm portion and the float can be prevented from contacting is provided, any of claims 1 to 6 toilet water tank for drainage control mechanism according to any. And a lower support rod extending downward from the valve body, and a lower guide disposed in the drain pipe to allow the lower support rod to move in the vertical direction and to restrict movement in the horizontal direction. Item 8. A toilet water tank drainage control mechanism according to any one of Items 1 to 7 . The drainage control mechanism for a toilet cistern according to claim 8 , wherein end portions on the valve body side of the upper and lower support rods are threaded and screw-connected to the valve body side. The toilet water tank drainage control mechanism according to any one of claims 1 to 9 , wherein an outer shape of a lower surface of the valve body is formed in a shape including a part of a substantially spherical surface. The drainage control mechanism for a toilet cistern according to any one of claims 1 to 10 , wherein a flange that protrudes in a direction of enlarging the outer diameter of the valve body is provided at a maximum diameter portion of the valve body.

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