JP3103125U - Water saving device for float valve - Google Patents

Abstract

PROBLEM TO BE SOLVED: To discharge a predetermined amount of water only by operating a lift valve operating means once in a valve opening direction at the time of stool drainage and to adopt it in a public toilet, and the amount of water saving is not limited by the opening / closing operation range of the float valve. Further, the present invention provides a water-saving device for a float valve, in which the setting of the water-saving amount is extremely easy and a predetermined water-saving amount can be obtained with certainty.
SOLUTION: A weight body 6 which can be mounted on an existing float valve 5 and has a weight that allows the float valve 5 to fall naturally in water, and a float valve 5 to which the weight body 6 is attached is opened by buoyancy. A through-hole 7a that can be lifted in the valve direction and that can be inserted into an existing hanging cable 35c, one of which is connected to the lifting valve operating means for forcibly lifting the float valve 5 in the valve opening direction at a substantially central portion thereof. And a stopper piece 9 that can be attached to an arbitrary position of the suspension cable 35c to fix the float 7 at an arbitrary position of the suspension cable 35c.
[Selection diagram] FIG.

Description

  The present invention relates to the improvement of a float valve used in a float valve device provided in a water storage tank such as a low tank or a high tank of a flush toilet, and in particular, to attach a water-saving float valve that exhibits a water-saving function and an existing float valve. The present invention relates to a water-saving device for a float valve that exerts a water-saving function.

  In the conventional float valve device, as a technique aimed at suppressing the amount of drainage during stool, the weight of the float in the float valve is offset by the weight of the weight in water by adding a weight to the float valve. As a result, in the same manner as in urine drainage, drainage is performed only during operation of the lifting valve operating means, or the buoyancy of the float valve is reduced, thereby reducing the valve closing timing. (See, for example, Utility Model Registration Documents 1 to 5).

Utility Model Registration No. 3028622 Utility Model Registration No. 3025362 Japanese Utility Model Publication No. 55-21378 Japanese Utility Model Publication No. 1-36522 JP-A-9-129996

  However, the conventional example has the following problems. First, the former is extremely cumbersome because it is necessary to operate the lifting valve operating means until the discharge of the stool from the toilet bowl is completed, even when the stool is drained. There was a problem that it was not possible.

  Next, in the latter, it is theoretically not impossible to slightly advance the valve closing time by reducing the buoyancy of the float valve with the weight, but the buoyancy of the float valve and the weight of the weight in water are not impossible. The balance between the weight and the closing time of the float valve due to the natural fall of the float valve is extremely delicate, and with this type of float valve device, there is a variation in the accuracy of parts and the accuracy of assembly. Therefore, it is necessary to adjust the mounting by a specialist or the like, which increases the cost and is extremely unstable in terms of precision.Furthermore, the amount of water saving is limited due to the opening and closing operation range of the float valve, and the water saving is more than a certain amount. There was a problem that can not be expected.

  The present invention has been made in view of the above-mentioned conventional problems, and at the time of stool drainage, a predetermined amount of drainage is performed only by operating the lift valve operating means once in the valve opening direction. It can also be used in public toilets, and the amount of water saving is not limited by the opening / closing operation range of the float valve, etc., and the setting of the amount of water saving is extremely easy and a predetermined amount of water saving can be reliably obtained. Aims to provide a water-saving float valve that does not require mounting adjustment by a specialist or the like and is inexpensive, and a water-saving tool in the float valve, and further provides a water-saving float valve that can arbitrarily adjust the water-saving amount. It is for an additional purpose.

  In order to achieve the above object, in the water-saving float valve according to the first aspect of the present invention, it is possible to sit and stop the water by naturally falling in water into a valve seat of a drain port provided at the bottom of the water storage tank. An on-off valve body portion provided in a state, a float portion provided above the on-off valve body portion and capable of lifting the on-off valve body portion in a valve opening direction by buoyancy, and the on-off valve body portion and the float portion. Between the opening and closing valve body portion, the float portion, and the spacing forming member, and the opening and closing valve body portion is forcibly connected. A hanging cable connecting portion that can connect the other of the hanging cable, one of which is connected to the valve lifting operation means for pulling up in the valve opening direction, is provided.

  And, at the time of stool drainage, the buoyancy of the float portion drains a predetermined amount of water saved only by operating the lift valve operating means once in the valve opening direction, so that it can be adopted also in public toilets. Yes, and since the water saving amount is determined by the depth at which the interval forming member is interposed, it is possible to set an arbitrary water saving amount without being limited by the opening / closing operation range of the float valve, and In addition, the water saving amount can be set very easily and a predetermined water saving amount can be reliably obtained, and mounting and adjustment by a professional or the like are not required, so that the cost is reduced.

  In the water-saving float valve according to the second aspect, in the water-saving float valve according to the first aspect, the interval forming member is configured to be capable of arbitrarily adjusting the interval between the on-off valve body and the float. .

  In the water-saving float valve according to the third aspect, the upper part of the opening / closing valve body part which is provided so as to be seated by being naturally dropped in water to a valve seat of a drain port provided at a bottom part of the water storage tank so as to be able to stop water. In a float valve integrally formed with a float portion capable of lifting the opening / closing valve body portion in the valve opening direction by buoyancy, a predetermined height is formed above the float portion so as to protrude upward and the specific gravity of water is increased. A weight body having the same or a specific gravity close to that of water is provided, and the height of the weight body can be changed with respect to the float portion.

  In the water-saving float valve according to the fourth aspect, in the water-saving float valve according to the third aspect, the weight body is constituted by a weight storage container capable of sealingly storing water or a weight having a specific gravity close to water. did.

  In the water-saving device for a float valve according to claim 5, the on-off valve body is provided on a valve seat of a drain port provided on a bottom portion of a water storage tank and provided in a state capable of stopping water. A weight body having a weight capable of being attached to an existing float valve integrally formed with a float portion capable of lifting the portion in the valve opening direction by buoyancy, and allowing the float valve to fall naturally in water; A float capable of lifting the float valve mounted with the weight in the valve opening direction by buoyancy, and an interval forming member for connecting the float and the float valve or the weight with a predetermined interval secured, Means.

  In the water-saving device of the float valve according to claim 6, in the water-saving device of the float valve according to claim 5, the interval forming member can arbitrarily adjust the interval between the float and the float valve or the weight. The configured means.

  The water-saving device for a float valve according to claim 7, wherein the on-off valve body is provided on a valve seat of a drain port provided on a bottom portion of the water storage tank and provided in a state capable of stopping water. A weight that can be attached to an existing float valve integrally formed with a float portion capable of lifting the portion in the valve opening direction by buoyancy and has a weight that allows the float valve to fall naturally in water; An existing float valve can be lifted in the valve opening direction by buoyancy, and one of the float valves is connected to lift operation means for forcibly lifting the float valve in the valve opening direction at a substantially central portion thereof. Means having a float in which a through-hole through which the hanging cable can be inserted is formed, and fixing means capable of fixing the float at an arbitrary position of the hanging cable by being attached to an arbitrary position of the existing hanging cable. did.

  In the water-saving device for a float valve according to claim 8, the opening / closing valve body is provided at an upper part of an opening / closing valve body part which is provided on a valve seat of a drain port provided on a bottom part of a water storage tank and is provided in a state capable of stopping water. A mounting part that can be fixedly mounted on an existing float valve integrally formed with a float part capable of lifting the part in the valve opening direction by buoyancy, and a predetermined height protrudingly formed above the mounting part. And a weight having the same specific gravity as water or having a specific gravity close to water, and the height of the weight can be changed with respect to the float.

  In the water-saving device of the float valve according to claim 9, in the water-saving device of the float valve according to claim 8, the weight body is a weight storage container capable of sealingly housing water or a weight having a specific gravity close to water. The configured means.

  In the water-saving float valve according to the first aspect of the present invention, the opening / closing valve body portion is provided so as to be seated by being naturally dropped in water to the valve seat of the drain port provided at the bottom of the water storage tank so that the water can be stopped. A float provided above the on-off valve body and capable of lifting the on-off valve body in the valve-opening direction by buoyancy; and securing a predetermined gap between the on-off valve body and the float. A gap forming member that is connected in a state, and a lift valve that is provided on one of the opening / closing valve body portion, the float portion, and the space forming member, and forcibly raises the opening / closing valve body portion in the valve opening direction. And a suspending line connecting portion capable of connecting the other of the suspending lines, one of which is connected to the operating means, so that when the stool is drained, the lifting valve operating means is once moved in the valve opening direction. Just by operating, a predetermined amount of drainage is performed, It can also be used in public toilets, and the amount of water saving is not limited by the opening and closing operation range of the float valve, etc., and the setting of the amount of water saving is extremely easy and a predetermined amount of water saving can be reliably obtained. At the same time, there is an effect that mounting adjustment by a specialized trader or the like is unnecessary and the cost is reduced.

  In the water-saving float valve according to the second aspect, in the water-saving float valve according to the first aspect, the interval forming member is configured to be capable of arbitrarily adjusting an interval between the on-off valve body and the float, thereby opening and closing. It is possible to adjust the water level at which the valve body seats on the valve seat of the drain port, thereby obtaining an additional effect that the water saving amount can be arbitrarily adjusted.

  In the water-saving float valve according to the third aspect, the upper part of the opening / closing valve body part which is provided so as to be seated by being naturally dropped in water to a valve seat of a drain port provided at a bottom part of the water storage tank so as to be able to stop water. In a float valve integrally formed with a float portion capable of lifting the opening / closing valve body portion in the valve opening direction by buoyancy, a predetermined height is formed above the float portion so as to protrude upward and the specific gravity of water is increased. With the configuration in which the weight having the same or a specific gravity close to water is provided, when the weight is on the water surface, the weight acts as a weight on the float valve by the weight of the weight. When the body is immersed in water, the specific gravity is the same as or close to that of water, so that the body hardly acts as a weight on the float valve. Therefore, the same effect as the water-saving float valve according to the first aspect is obtained. In addition, since the height of the weight body can be changed with respect to the float portion, the water level at which the opening / closing valve body portion is seated on the valve seat of the drain port can be adjusted, whereby the water saving amount can be arbitrarily adjusted. The effect that it becomes possible to do it is acquired.

  In the water-saving float valve according to claim 4, in the water-saving float valve according to claim 3, the weight body is constituted by a weight storage container capable of being filled and sealed with water or a weight having a specific gravity close to water, The same effect as the water-saving float valve according to the third aspect is obtained.

  In the water-saving device for a float valve according to claim 5, the on-off valve body is provided on a valve seat of a drain port provided on a bottom portion of a water storage tank and provided in a state capable of stopping water. A weight body having a weight capable of being attached to an existing float valve integrally formed with a float portion capable of lifting the portion in the valve opening direction by buoyancy, and allowing the float valve to fall naturally in water; A float capable of lifting the float valve mounted with the weight in the valve opening direction by buoyancy, and an interval forming member for connecting the float and the float valve or the weight with a predetermined interval secured, In addition to the same effect as the water-saving float valve according to claim 1, the additional effect that the cost is reduced can be obtained because it is only added to the existing float valve. Profit It is.

  In the water-saving device of the float valve according to claim 6, in the water-saving device of the float valve according to claim 5, the interval forming member can arbitrarily adjust the interval between the float and the float valve or the weight. With this configuration, it is possible to adjust the water level at which the opening / closing valve body seats on the valve seat at the drain port, thereby obtaining an effect that the water saving amount can be arbitrarily adjusted.

  The water-saving device for a float valve according to claim 7, wherein the on-off valve body is provided on a valve seat of a drain port provided on a bottom portion of the water storage tank and provided in a state capable of stopping water. A weight that can be attached to an existing float valve integrally formed with a float portion capable of lifting the portion in the valve opening direction by buoyancy and has a weight that allows the float valve to fall naturally in water; An existing float valve can be lifted in the valve opening direction by buoyancy, and one of the float valves is connected to lift operation means for forcibly lifting the float valve in the valve opening direction at a substantially central portion thereof. A configuration having a float in which a through-hole through which a hanging cable can be inserted is formed, and fixing means capable of fixing the float at an arbitrary position of the hanging cable by being attached to an arbitrary position of the existing hanging cable. By doing The same advantages as water saving device can be obtained in the float valve according to serial claim 5, since it is possible to use existing slings, additional effect of cost cheaper by reducing the number of parts is obtained.

  In the water-saving device for a float valve according to claim 8, the opening / closing valve body is provided at an upper part of an opening / closing valve body part which is provided on a valve seat of a drain port provided on a bottom part of a water storage tank and is provided in a state capable of stopping water. A mounting part that can be fixedly mounted on an existing float valve integrally formed with a float part capable of lifting the part in the valve opening direction by buoyancy, and a predetermined height protrudingly formed above the mounting part. And a weight body having the same specific gravity as water or having a specific gravity close to water, and the height of the weight body can be changed with respect to the float portion, so that the water-saving float valve according to claim 3 and The same effect can be obtained, and an additional effect that the cost is reduced can be obtained because it is only added to the existing float valve.

  In the water-saving device of the float valve according to claim 9, in the water-saving device of the float valve according to claim 8, the weight body is a weight storage container capable of sealingly housing water or a weight having a specific gravity close to water. With this configuration, the same effect as the water-saving device in the float valve according to the eighth aspect can be obtained.

This embodiment will be described with reference to the drawings. First, an embodiment of the water-saving float valve will be described.
(Example 1)
FIG. 1 is a cross-sectional view showing the inside of a low tank of a flush toilet provided with a float valve device to which a water-saving float valve 4A of a first embodiment is applied. In this figure, 1 is a low tank (water storage tank), and 2 is a ball tap. And 3 indicates a float valve device.

  Describing the float valve device 3 in detail, a valve holder 31 is attached to a drain port 12 formed in the bottom 11 of the raw tank 1, and a valve seat communicating with the drain port 12 is provided on the upper surface of the valve holder 31. 32 is provided in a slightly inclined state, and a valve shaft support 34 having an overflow pipe 33 provided upright is provided on the side of the holding table 31 in the upwardly inclined direction of the valve seat 32.

  A water-saving float valve 4A is swingably attached to the valve shaft support portion. The water-saving float valve 4A is mounted on the valve seat 32 so as to be able to stop water, and an opening / closing valve body portion 41 provided above the opening / closing valve body portion 41 to lift the opening / closing valve body portion 41. A float 42 that can be lifted in the valve opening direction, and an interval forming member 43 that connects the open / close valve body 41 and the float 42 while maintaining a predetermined interval.

  As shown in the plan view of FIG. 2, the opening / closing valve body portion 41 has holes 41b, 41b formed horizontally at the distal ends of two parallel arms 41a, 41a formed in the valve shaft support portion. By pivotally supporting the pivots 34a, 34a, the pivots 34a, 34a are attached so as to be vertically swingable about the pivots 34a, 34a, so that the drain port 12 is opened and closed.

  In the first embodiment, the gap forming member 43 is formed of a chain of rings, and a lower end thereof is connected to a connection hole 41 c formed in an upper part of the on-off valve body 41, while an upper end thereof is Is connected to a hook 42a provided on the back surface of the float portion 42 in a detachable manner.

  Further, on the upper side wall 13 of the low tank 1, a valve operating means 35 is provided. The lifting operation means 35 is provided with an L-shaped bending arm 35b which is internally rotated in conjunction with an external operation lever 35a, and a swinging end of the swing arm 35b is suspended. A hook 35d removably connected to an arbitrary position on the upper end side of the rope (ball chain) 35c is removably connected, while the lower end side is connected to a hanging rope connecting part 42b formed on the upper part of the float part 42. Are linked.

  The length of the hanging cable 35c is the same as the conventional one, and the opening amount of the opening / closing valve body portion 41 is set to the valve opening when the operation lever 35a is rotated to the urinal drainage side where the lifting amount of the hanging cable 35c is small. The suction force accompanying the drainage flow at the time is set so as to be within a range in which the suction force continues to act on the on-off valve body 41.

  Since the water-saving float valve 4A of the first embodiment is configured as described above, as shown in FIG. 3A, the water-saving float valve 4A is lifted from a closed state in which the water-saving float valve 4A is set at a predetermined position in the low tank 1. By operating the operating lever 35a of the operating means 35 to the stool drainage side, as shown in FIG. 3B, the opening / closing valve body 41 is forcibly pulled up in the valve opening direction to perform the draining operation. As shown in FIG. 3 (c), when the water level in the low tank 1 drops to the position where the float portion 42 is floating, the on-off valve body portion 41 drops together with the float portion 42, and is shown in FIG. 3 (d). As described above, while the low tank 1 is at a high water level, the user sits on the valve seat 32 of the drain port 12 and stops draining.

  That is, since the float portion 42 floats above the opening / closing valve body portion 41 by the length of the space forming member 43, one stool of the low tank 1 by the depth at which the space forming member 43 is interposed. The effect of being able to reduce the time drainage is obtained.

  At the time of stool drainage, the buoyancy of the float portion 42 causes the operation lever 35a of the lift valve operating means 35 to be operated only once to the stool drainage side, so that a predetermined amount of drained water is drained. It is possible to adopt.

  In addition, since the water saving amount is determined by the depth at which the interval forming member 43 is interposed, the length of the chain forming the interval forming member 43 is not limited by the opening / closing operation range of the water saving float valve 4A. It is possible to set an arbitrary amount of water saving by adjusting, and because the setting of the amount of water saving is extremely easy and reliably obtains a predetermined amount of water saving, there is no need for mounting adjustment by a specialist or the like, Cost is low. It should be noted that although it is theoretically possible to save 90% or more of water, there is a minimum amount of drainage required for drainage during stool. Therefore, as a result of the experiment, it was confirmed that even if the water saving amount was set to 60% (the drainage amount 40%), the drainage amount at the time of stool was sufficient.

  Next, a water-saving float valve according to another embodiment will be described. In the description of the other embodiments, the same components as those in the first embodiment will not be shown and described, or the same components will be denoted by the same reference numerals and description thereof will be omitted. Only the differences will be described.

(Example 2)
As shown in FIG. 4, the water-saving float valve 4 </ b> B according to the second embodiment has the buoyancy on the top of an opening / closing valve body 41 that is seated on a valve seat 32 and is provided in a water-stoppable state. As a result, the float portion 42 that can be lifted in the valve opening direction is integrally formed, and the weight housing container 45 that projects upward by a predetermined height with respect to the mounting table 46 formed on the upper surface of the float portion 42 has a protruding height. Adjustably mounted.

  The weight storage container 45 is formed in a cylindrical shape that can be sealed by a lid 45a or the like, and has a weight G having water or a specific gravity close to water filled therein. A male screw 45b that is screwed into a female screw hole 46a formed in the upper part of the mounting base 46 is formed on the outer peripheral surface on the lower end side of the weight storage container 45. The projecting height of the container 45 can be adjusted arbitrarily, thereby making it possible to adjust the water saving amount.

  In the water-saving float valve 4B of the second embodiment, since the water-saving float valve 4B is configured as described above, when the weight housing container 45 is on the water surface, the water-saving float valve 4B is moved by the weight of the weight of the weight body G housed in the container. On the other hand, it acts as a weight, but when it is immersed in water, the specific gravity is the same or close, so that it hardly acts as a weight on the water-saving float valve 4B. There is no hindrance to valve operation.

  Therefore, as shown in FIG. 5 (a), by operating the operation lever 35a of the lifting valve operation means 35 to the stool drainage side from the closed state in which the water saving float valve 4B is set at a predetermined position in the low tank 1, As shown in FIG. 5B, the water level in the low tank 1 is lowered by forcibly pulling up the on-off valve body portion 41 in the valve opening direction and performing the draining operation. As shown, when the water level is lower than the upper end position of the weight storage container 45, the weight storage container 45 acts as a weight with respect to the water-saving float valve 4B by an amount exposed on the water surface. As a result, the closing timing of the water-saving float valve 4B is advanced, that is, as shown in FIG. Sitting on the valve seat 32 So that the water is stopped. Therefore, in the water-saving float valve 4B of the second embodiment, the same effect as that of the water-saving float valve 4A of the first embodiment can be obtained.

  In the above, the embodiment in which the water-saving float valve of the present invention is applied to the float valve device of the type in which the opening and closing of the float valve is performed by swinging is shown, but the type in which the opening and closing of the float valve are performed linearly (vertically). An embodiment in which the water-saving float valve of the present invention is applied to a float valve device will be described. Embodiments 3 and 4 described below differ only in that the opening / closing operation of the float valve is oscillating or linear, and are similar in principle to Embodiments 1 and 2, respectively. The effect is the same.

  That is, in the float valve devices to which the water-saving float valves 4C and 4D of Examples 3 and 4 are applied, the valve seat 32 is formed in a horizontal state as shown in FIGS. At the center position of the inner bottom portion of the valve seat 32, a guide cylinder 36 for vertically guiding a guide rod 47 protruding from the lower end of the opening / closing valve body 41 of the water-saving float valves 4C and 4D is provided vertically. .

(Example 3)
As shown in FIG. 6, the water-saving float valve 4 </ b> C according to the third embodiment includes a solid spherical opening / closing valve body 41 that is seated on a valve seat 32 and is provided in a water-stoppable state. And a float portion 42 which is provided above the opening portion and which can lift the on-off valve body portion 41 in the valve opening direction by buoyancy, and is connected between the on-off valve body portion 41 and the float portion 42 in a state where a predetermined interval is secured. And an interval forming member 43 that performs the operation.

  As shown in FIG. 7, a ball chain is used for the gap forming member 43, and a lower end thereof is connected to a connection hole 41 a formed in an upper portion of the on-off valve body 41, while a lower end thereof is An arbitrary position is detachably connected to a hook 42a locked on the back surface of the float portion 42. Further, a suspension cable connecting portion 42b to which the lower end of the suspension cable 35c is connected is formed at the upper end of the float portion 42 at the distal end side.

  The length of the hanging cable 35c is the same as the conventional one, and the opening amount of the opening / closing valve body portion 41 is set to the valve opening when the operation lever 35a is rotated to the urinal drainage side where the lifting amount of the hanging cable 35c is small. The suction force accompanying the drainage flow at the time is set so as to be within a range in which the suction force continues to act on the on-off valve body 41. In the middle of the overflow pipe 33, an annular stopper 37 for regulating the opening position of the on-off valve body 41 is provided.

  Since the water-saving float valve 4C of the third embodiment is configured as described above, the water-saving float valve 4C is set at a predetermined position in the low tank 1 in the closed state as shown in FIG. By operating the operation lever 35a of the operation means 35 to the stool drainage side, as shown in FIG. 9B, the opening / closing valve body portion 41 is forcibly pulled up in the valve opening direction to perform the drainage operation. As shown in FIG. 9 (c), when the water level in the low tank 1 drops to the position where the float portion 42 is floating, the on-off valve body portion 41 drops together with the float portion 42, and is shown in FIG. 9 (d). As described above, while the low tank 1 is at a high water level, the user sits on the valve seat 32 of the drain port 12 and stops draining. Therefore, with the water-saving float valve 4C of the third embodiment, the same effect as that of the water-saving float valve 4A of the first embodiment can be obtained.

(Example 4)
As shown in FIG. 9, the water-saving float valve 4D according to the fourth embodiment is provided on the top of a rubber on-off valve body 41 provided on a valve seat 32 so as to be able to stop water. A synthetic resin float 42 capable of lifting the valve 41 in the valve opening direction by buoyancy is integrally formed in a hollow spherical shape, and a predetermined height above the float 42 is provided above the float 42 via a spacing member 43. The weight storage container 45 is formed so as to protrude.

  The weight storage container 45 is formed in a cylindrical shape that can be sealed by a lid 45a or the like, and has a weight G having water or a specific gravity close to water filled therein. Further, a suspension cable connecting portion 45c to which the lower end side of the suspension cable 35c is connected is formed on the lid 45a.

  The space forming member 43 is formed by a male screw rod having an upper end connected to a lower end of the weight storage container 45, and the male screw rod is screwed into a screw hole 42 c formed in the axis of the float part 42. By adjusting the screwing amount, the height of the protrusion of the weight storage container 45 can be adjusted, and thereby the water saving amount can be adjusted. The weight container 45 is formed in a cylindrical shape that can pass through the inside of the annular stopper 37. Reference numeral 48 denotes a hand-tightening detent nut.

  Since the water-saving float valve 4D of the fourth embodiment is configured as described above, when the water-saving float valve 4D of the present invention is set at a predetermined position in the low tank 1, when the weight storage container 45 is above the water surface, its weight is reduced. The weight acts as a weight on the water-saving float valve 4D, but does not act as a weight on the water-saving float valve 4D when the weight container 45 is immersed in water because the specific gravity is the same as that of water. There is no hindrance to the valve opening operation due to the buoyancy of the float portion 42.

  Therefore, as shown in FIG. 10 (a), by operating the operation lever 35a of the lifting valve operation means 35 to the stool drainage side from the closed state where the water-saving float valve 4D is set at a predetermined position in the low tank 1, As shown in FIG. 10 (b), the water level in the low tank 1 is reduced by forcibly raising the on-off valve body portion 41 in the valve opening direction and performing the draining operation. As shown, when the water level falls below the upper end position of the weight storage container 45, the weight storage container 45 acts as a weight with respect to the water-saving float valve 4D by the amount exposed on the water surface. As a result, the closing timing of the water-saving float valve 4D is advanced, that is, as shown in FIG. On the valve seat 32 Sit and drainage is to be stopped. Therefore, in the water-saving float valve 4D of the fourth embodiment, the same effect as that of the second embodiment can be obtained.

  Next, an embodiment of a water-saving device in a float valve that exhibits a water-saving function by being attached to an existing float valve will be described. First, an embodiment in which a water-saving device in a float valve of the present invention is applied to a float valve device of a type in which opening and closing of a float valve is performed by swinging will be described.

(Example 5)
As shown in FIG. 11, the water-saving device 4E in the float valve of the fifth embodiment has a weight that can be attached to the upper part of the existing float valve 5 and that allows the float valve 5 to fall naturally in water. A weight 6, a float 7 capable of lifting the float valve 5 to which the weight 6 is attached in the valve opening direction by buoyancy, and a state in which a predetermined interval is secured between the float 7 and the weight 6. And a space forming member 8 to be connected.

  More specifically, as shown in the plan view of FIG. 12, the weight body 6 is formed in a circular arc shape along the upper surface of the float valve 5 with a cross section along a top surface of the float valve 5 by a metal or the like having a higher specific gravity than water, and has a substantially fan shape in plan view. At the front end, two holding pieces 6a, 6a capable of holding the hanging cable connecting portion 5a protruding above the float valve 5 are formed so as to protrude, and the tips of both holding pieces 6a, 6a are formed. By narrowing the interval between the two holding pieces 6a, 6a, the hanging cable connecting portion 5a is fastened and held between the two holding pieces 6a, 6a, whereby the weight body 6 is placed on the top surface of the front end side of the float valve 5. Fastening bolts and nuts 6b for mounting in a fixed state are provided.

  A connecting portion 6c for connecting the lower end of the ball chain forming the space forming member 8 is formed on the upper end of the one holding piece 6a. Reference numeral 6d denotes a protrusion for stabilizing the attached state of the weight body 6 by being locked to the outer peripheral edge of the float valve 5. In addition, an arbitrary position on the upper end side of the space forming member 8 is connected to a hook 7 a connected to the back surface of the float 7 so as to be freely detachable. Therefore, the water-saving device 4E in the float valve according to the fifth embodiment has the same effect as the water-saving float valve 4A according to the first embodiment, and is only added to the existing float valve 5, so that the cost is reduced. Additional effects are obtained.

(Example 6)
As shown in FIG. 13, a water-saving device 4F in the float valve according to the sixth embodiment can be attached to an upper part of an existing float valve 5 and has a weight 6 having a weight that allows the float valve 5 to fall naturally in water. Lift operation means 35 for lifting the float valve 5 on which the weight 6 is mounted in the valve opening direction by buoyancy, and forcibly lifting the float valve 5 in the valve opening direction at a substantially central portion thereof. And a float 7 having a through hole 7b formed therein through which an existing suspension cable 35c can be inserted. The float 7 is attached to an arbitrary position of the existing suspension cable 35c so that the float 7 can be attached to an arbitrary position of the suspension cable 35c. And a stopper member (fixing means) 9 to which the fixing member 7 can be fixed.

  More specifically, as shown in the plan view of FIG. 14, the weight 6 is formed in a circular arc shape along the upper surface of the float valve 5 in a substantially arc shape along a top surface of the float valve 5 by metal or the like having a higher specific gravity than water. In addition, a through hole 6e that can be attached to the hanging cable connecting portion 5a protruding from the upper part of the float valve 5 and that can insert the existing hanging cable 35c is formed at the distal end thereof. The fixing of the weight 6 to the existing float valve 5 is performed by attaching the stopper member 9 to the existing hanging cable 35c. As shown in the plan view of FIG. 15, the stopper member 9 is a plate-like member having a gourd-shaped slit 9a which is detachably fitted to the shaft of the chain 8a. . As shown in FIG. 16, the stopper member 9 may be formed in a pin shape by bending an elastic linear body.

  Therefore, the water-saving device 4F in the float valve according to the sixth embodiment has the same effect as the water-saving device 4E in the float valve according to the fifth embodiment, and the existing hanging cable 35c can be used as a space forming member. An additional effect is obtained that the cost is reduced by reducing the number of parts.

(Example 7)
As shown in FIG. 17, a water saving device 4G in the float valve according to the seventh embodiment has a mounting portion 50 that can be fixedly mounted on the existing float valve 5 and a predetermined height above the mounting portion 50. A weight storage container 51 which is protrudingly formed and is capable of being filled with water or a weight G having a specific gravity close to water and capable of hermetically containing the weight is provided.

  More specifically, the mounting portion 50 is provided at the lower end of a cylindrical portion 50b having an axial hole 50a through which the hanging cable connecting portion 5a and the hanging cable 35c can be inserted, along four arcuate surfaces of the float valve 5 along the upper surface thereof. In addition to the leg 50c, a male screw 50d is formed on the outer periphery of the cylindrical portion. Then, by attaching the stopper member 9 to the suspension cable 35c at the upper end surface position of the cylindrical portion 50b, attachment and fixing to the existing float valve 5 is performed. The height of the weight storage container 51 with respect to the float valve 5 can be set to an arbitrary value by screwing a female screw hole 51a formed through the shaft center portion of the weight storage container 51 into a male screw 50d of the cylindrical portion 50b. The structure is adjustable. 50e is a drain hole, and 52 is a fixing nut.

  Therefore, the water-saving device 4G in the float valve according to the seventh embodiment can obtain the same effect as the water-saving float valve 4B according to the second embodiment, and can use the existing float valve 5 and the hanging cable 35c. Has the additional effect of reducing costs.

  The above shows an embodiment in which the water-saving device in the float valve of the present invention is applied to the float valve device of the type in which the opening and closing of the float valve is performed by swinging. An embodiment in which the water saving device in the float valve of the present invention is applied to the valve device will be described.

(Example 8)
As shown in FIG. 18, the water-saving device 4H of the float valve according to the eighth embodiment can be mounted on the existing float valve 5 and has a weight that allows the float valve 5 to fall naturally in water. A weight 6, a float 7 capable of lifting the float valve 5 to which the weight 6 is attached in the valve opening direction by buoyancy, and a state in which a predetermined interval is secured between the float 7 and the weight 6. And a space forming member 8 to be connected.

  More specifically, the weight body 6 has a bottom surface formed of a metal or the like having a higher specific gravity than water and a bottom surface formed in a substantially cylindrical shape along a top surface of the float valve 5, and a central portion of the bottom surface, A recess is formed at the upper part of the float valve 5 so that the suspension cable connecting portion 5a can be attached thereto, and a through hole 6e through which the existing suspension cable 35c can be inserted in a state penetrating diagonally outward from the recess is formed. I have. The weight member 6 is fixedly attached to the existing float valve 5 by attaching the stopper member 9 to the existing suspension cable 35c at the opening end face of the through hole 6e. In addition, a connecting portion 6c that connects the lower ends of the ball chains 8a that form the space forming member 8 is formed at the upper central position of the weight body 6.

  The float 7 has a through hole 7a at the center thereof through which the ball chain 8a can be inserted. The ball chain 8a is inserted into the through hole 7a, and a stopper member is inserted into the ball chain 8a at the upper end of the float 7. By mounting 9, the float 7 and the weight 6 are connected to each other while maintaining a predetermined interval. Therefore, the water-saving device 4H in the float valve according to the eighth embodiment has the same effect as the water-saving float valve 4C according to the third embodiment, and is only added to the existing float valve 5, so that the cost is reduced. Additional effects are obtained.

(Example 9)
As shown in FIG. 19, the water-saving device 4I in the float valve according to the ninth embodiment can be attached to an upper part of an existing float valve 5 and has a weight 6 having a weight that allows the float valve 5 to fall naturally in water. Lift operation means 35 for lifting the float valve 5 on which the weight body 6 is mounted in the valve opening direction by buoyancy, and forcibly lifting the float valve 5 in the valve opening direction at a substantially central portion thereof. And a float 7 having a through hole 7a formed therein through which an existing hanging cable 35c can be inserted. The float 7 is attached to an arbitrary position of the existing hanging cable 35c so that the float 7 can be attached to an arbitrary position of the hanging cable 35c. And a stopper member (stopper means) 9 to which the fixing member 7 can be fixed.

  More specifically, the weight body 6 is formed in a substantially semispherical spherical shape along the upper surface of the float valve 5 by a metal or the like having a higher specific gravity than water. A through-hole 6e that can be attached to the hanging cable connecting portion 5a protruding from the upper part of the cable 5 and that can insert the existing hanging cable 35c is formed. The fixing of the weight 6 to the existing float valve 5 is performed by attaching the stopper member 9 to the existing hanging cable 35c.

  Therefore, the water-saving device 4I in the float valve according to the ninth embodiment has the same effect as the water-saving device 4H in the float valve according to the eighth embodiment, and the existing hanging cable 35c can be used as a space forming member. An additional effect is obtained that the cost is reduced by reducing the number of parts.

(Example 10)
As shown in FIG. 20, the water-saving float valve 4J of the tenth embodiment has a mounting portion 50 that can be fixedly mounted on an existing float valve 5 and a predetermined height projecting upward from the mounting portion 50. And a weight storage container 51 capable of being filled with water or a weight G having a specific gravity close to water.

  More specifically, the mounting portion 50 is provided at the lower end of a cylindrical portion 50b having a shaft hole 50a through which the hanging cable connecting portion 5a and the hanging cable 35c can be inserted, in a suction cup shape along the arc upper surface of the float valve 5. A male screw 50d is formed on the outer periphery of the cylindrical portion 50b while having a leg portion 50c.

  Then, by attaching the stopper member 9 to the suspension cable 35c at the upper end surface position of the cylindrical portion 50b, attachment and fixing to the existing float valve 5 is performed. The height of the weight storage container 51 with respect to the float valve 5 can be arbitrarily set by screwing the female screw hole 51b formed through the shaft center portion of the weight storage container 51 into the male screw 50d of the cylindrical portion 50b. It has an adjustable structure. In addition, 50f is a notch for draining, and 52 is a fixing nut.

  Therefore, the water-saving device 4J in the float valve according to the tenth embodiment has the same effect as the water-saving float valve 4D according to the fifth embodiment, and is only added to the existing float valve 5, so that the cost is low. The additional effect of sticking is obtained.

  Although the embodiments have been described above, the specific configuration is not limited to these embodiments, and the present invention includes any design change or the like within a range not departing from the gist of the present invention.

  For example, in the first and third embodiments, the structure in which the chains are connected to the upper and lower portions of the float portion is shown. May be applied.

  Further, in the first and third embodiments, the example in which the chain is used as the gap forming member is described. If so, the structure of the interval forming member interposed between the on-off valve body and the float is arbitrary.

  In the fifth, sixth, eighth, and ninth embodiments, an example is described in which a chain is used as the interval forming member. The structure of the interval forming member interposed between the float valve or the weight and the float portion is arbitrary.

  Further, in the first and third embodiments, the on-off valve body which can be naturally dropped in water is manufactured separately and is replaced with an existing float valve. However, water or water is provided in the hollow portion of the existing float valve. Fill and seal with a liquid or viscous substance close to the specific gravity of water, or store a large number of spheres (for example, rubber or aluminum) with a specific gravity higher than that of water, and close the lower end opening with a plug or the like. Therefore, the present invention also includes a case where the valve is used in a modified state as an open / close valve body that can fall naturally in water as a whole. In this case, by using a material that cures after a certain period of time after filling into the hollow portion of the float valve, the filling operation can be performed more efficiently, and subsequent sealing and closing operations can be omitted. .

  Further, in the second, fourth, seventh and tenth embodiments, as the weight, a case is used in which a weight storage container that fills and stores water or a weight having a specific gravity close to water is used as the weight. It is not necessary to form it. In short, it may be formed of water or a material having a specific gravity close to water as a whole.

  Further, in a water-saving device of a type that is attached to an existing float valve (Examples 5 to 10), the water-saving device may be attached and fixed with an adhesive or may be used with an adhesive.

  In the first, third, fifth, sixth, eighth, and ninth embodiments, a hollow portion is taken as an example of the float portion, but a foamed body or the like can be used.

FIG. 3 is a partially cutaway front view showing a usage state of the water-saving float valve of the first embodiment. FIG. 3 is a plan view of an on-off valve body in the water-saving float valve according to the first embodiment. FIG. 3 is an explanatory diagram of the operation of the water-saving float valve of the first embodiment. FIG. 10 is a partially cutaway front view showing a usage state of the water-saving float valve of the second embodiment. FIG. 10 is an explanatory diagram of the operation of the water-saving float valve of the second embodiment. FIG. 14 is a partially cutaway front view showing a usage state of the water-saving float valve of the third embodiment. The principal part enlarged view of FIG. FIG. 10 is an explanatory view of the operation of the water-saving float valve according to the third embodiment. FIG. 14 is a partially cutaway front view showing a usage state of a water-saving float valve according to a fourth embodiment. FIG. 14 is an explanatory diagram of the operation of the water-saving float valve according to the fourth embodiment. FIG. 18 is a partially cutaway front view showing a usage state of a water-saving device in the float valve according to the fifth embodiment. FIG. 14 is a plan view showing a weight body according to a fifth embodiment. FIG. 19 is a partially cutaway view showing a usage state of a water-saving device in the float valve according to the sixth embodiment. FIG. 19 is a plan view showing a weight body according to a sixth embodiment. FIG. 19 is a plan view showing a stopper member used in the sixth embodiment. FIG. 19 is a plan view showing a stopper member used in the sixth embodiment. FIG. 14 is a cross-sectional view illustrating a usage state of a water-saving device in the float valve according to the seventh embodiment. FIG. 19 is a cross-sectional view illustrating a usage state of a water-saving device in the float valve according to the eighth embodiment. FIG. 21 is a cross-sectional view showing a water-saving tool used in the float valve according to the ninth embodiment. FIG. 21 is a cross-sectional view showing a water-saving device used in the float valve according to the tenth embodiment.

Explanation of reference numerals

1 low tank (water storage tank)
5 Existing float valve 6 Weight 7 Float 7a Through hole 9 Stopper member (fixing means)
12 Drain port 32 Valve seat 35c Hanging cable

Claims (9)

  An opening / closing valve body portion which is seated by naturally falling in water to a valve seat at a drain port provided at a bottom portion of the water storage tank and is provided in a state where water can be stopped, and is provided above the opening / closing valve body portion. A float portion capable of lifting the opening / closing valve body portion in the valve opening direction by buoyancy, an interval forming member connecting the opening / closing valve body portion and the float portion with a predetermined gap secured, and the opening / closing valve body A suspension cable provided on one of the section, the float section, and the interval forming member, and one of which is connected to valve-lifting operation means for forcibly lifting the on-off valve body in the valve opening direction. A water-saving float valve, comprising: a hanging cable connecting portion to which one of the connecting members can be connected.   2. The water-saving float valve according to claim 1, wherein the interval forming member is configured to arbitrarily adjust an interval between the on-off valve body and the float. 3.   The open / close valve body is buoyant at the top of the open / close valve body provided in a state where it can be seated by being naturally dropped in water against the valve seat of the drain port provided at the bottom of the water storage tank and provided in a water-stoppable state. In a float valve integrally formed with a float portion which can be lifted in a valve opening direction, a weight body protruding upward at a predetermined height above the float portion and having a specific gravity equal to or close to water specific gravity of water. And a weight body is configured to be able to change the height with respect to the float part.   4. The water-saving float valve according to claim 3, wherein the weight body is configured as a weight storage container capable of being filled and sealed with water or a weight having a specific gravity close to water. 5.   A float that can be lifted in the valve-opening direction by buoyancy above an opening / closing valve body that is seated on a valve seat at a drain port provided at the bottom of the water storage tank and that is provided in a water-stoppable state. Can be attached to an existing float valve integrally formed and has a weight capable of allowing the float valve to fall naturally in water, and a float valve to which the weight is attached is opened by buoyancy. A float that can be lifted in a valve direction, and an interval forming member that connects the float and the float valve or the weight body while maintaining a predetermined interval, to save water in the float valve. Utensils. The water-saving device of the float valve according to claim 5, wherein the interval forming member is configured to be able to arbitrarily adjust an interval between the float and the float valve or the weight.   A float that can be lifted in the valve-opening direction by buoyancy above an opening / closing valve body that is seated on a valve seat at a drain port provided at the bottom of the water storage tank and that is provided in a water-stoppable state. A weight that can be attached to an existing float valve that is integrally formed and has a weight that allows the float valve to fall naturally in water, and a float valve on which the weight is mounted is moved in the valve opening direction by buoyancy. A float, which is liftable and has a through hole formed at a substantially central portion thereof, through which an existing hanging cable connected to one of the lift valve operating means for forcibly lifting the float valve in the valve opening direction can be inserted. And a fixing means capable of fixing the float at an arbitrary position on the hanging line by attaching the float to an arbitrary position on the existing hanging line.   A float that can be lifted in the valve-opening direction by buoyancy above an opening / closing valve body that is seated on a valve seat at a drain port provided at the bottom of the water storage tank and that is provided in a water-stoppable state. And a mounting portion that can be fixedly mounted on an existing float valve integrally formed with the existing floating valve, and has a specific gravity equal to or close to water which is formed to project upward at a predetermined height above the mounting portion and has a specific gravity equal to or close to water. A water weight in the float valve, wherein the weight is configured to be changeable in height with respect to the float portion. 9. The water-saving device for a float valve according to claim 8, wherein the weight body is constituted by a weight storage container capable of filling and sealingly storing water or a weight having a specific gravity close to water. 10.

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