JP2000002578A - Convenient water flow-meter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a convenient water flow-meter capable of measuring a fixed amt. of water and feeding the water to a mixer, etc., of mortar, etc. SOLUTION: A vertically movable drain pipe 20 is disposed in a water tank 10 having a water feeder 11 and water supplier 12, a drain hole 20h is provided at the top of the drain pipe 20 for draining the water out from the water tank through the drain hole 20h, the drain pipe 20 is moved up and down to set the height position of the drain hole 20h, thereby storing a fixed amt. of water in the water tank, an indicator 20r for indicating the water amt. in the water tank is provided on the drain pipe 20, and a water amt. scale 27 for reading the water amt. in the water tank with the indicator is provided at the side face of the water tank 10. Water is fed with the indicator aligned with required water amt. scale 27 to store a fixed amt. of water in the water tank 10. Three height-adjustable legs 40 are provided at the water tank 10 whereby the horizontal state of the water tank can be ensured with checking a level 30 provided at the side face of the water tank 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simple water meter connected to, for example, a mortar mixer or the like, and can be used in any application requiring a constant amount of water. .

[0002]

With respect to mortar for civil engineering and construction, it is necessary to stir and mix the mortar material in an appropriate mixing ratio in view of the strength and the like. And, of course, the mixing ratio of water must be appropriate. As described above, the amount of water supplied to the mortar mixer and the like is set to be constant in accordance with the amount of other mortar materials, and the amount of water that can accurately measure the amount of supplied water. As a meter, there has been an expensive water meter that is expensive in the past. However, in the present invention, such a meter is not so expensive, has a simple configuration, and must be supplied accurately. It is an object of the present invention to provide a simple water meter that can accurately measure the amount of water and supply water to a mortar mixer or the like.
Thus, the invention of the present application can prevent hand-cutting work and the like in the fields of civil engineering and construction, and the water meter can be used in any field that requires a certain amount of water.

[0003]

In order to solve the above-mentioned problems, a first aspect of the present invention is a water tank 10 having a water supply section 11 to which water is supplied and a water supply section 12 to send out water. A drain pipe 20 composed of a pipe body movably arranged vertically inside the water tank 10. A drain port 20 h is provided at an upper portion of the drain pipe 20, and the drain port 20 h passes through the inside of the drain pipe 20. The water in the water tank 10 is discharged to the outside of the water tank 10, and the drain pipe 20 is moved up and down to set the height position of the water outlet 20h. It is a simple water meter characterized by storing.

In the present invention, since the drain pipe provided with a drain port on the upper part can be moved up and down, when the water accumulated in the water tank exceeds the height of the drain port of the drain pipe, the drain pipe is moved from the drain port to the drain pipe. Since the water passes through the inside of the water tank and is discharged to the outside of the water tank, water cannot be stored in the water tank beyond the height of the drain port. That is, in the water tank, since water will only collect up to the height position of the drain port of the drain pipe, by appropriately setting the height of the drain port, a desired fixed amount of water is placed in the water tank. It can be stored. After a certain amount of water has accumulated, the supply of water from the water supply unit is stopped, and a certain amount of water is sent to various mixers etc. by opening the valve of the water supply unit that communicates with various mixers etc. It becomes.

According to a second aspect of the present invention, in the first aspect, an instruction unit 2 for instructing the amount of water in the water tank 10 is provided.
0r is provided in the drain pipe 20, and a water volume scale 27 indicating a scale for reading the water volume in the water tank 10 by the indicator 20r.
Is provided in the water tank 10, and the indicator 20r is matched with the scale of the required water amount scale 27, whereby a fixed amount of water can be stored in the water tank 10. According to the present invention, it is possible to easily set a fixed amount of water to be stored in the water tank by matching the indicator for instructing the water volume scale with the scale of the water volume scale 27 of the required water volume. Become.

According to a third aspect of the present invention, in the first or second aspect, the water tank 10 has at least three legs 4.
0, and each of these legs 40 is formed from a material whose height can be adjusted. A level 30 is provided at an appropriate portion of the water tank 10, and while checking the level 30, the level of each leg 40 is adjusted. This is a simple water meter that can maintain the horizontal state of the water tank 10 by adjusting the height. In the present invention, by adjusting the height of each leg,
With the level, the water tank can be kept horizontal, and the amount of water stored in the water tank can be measured more accurately.

[0007]

Embodiments of the present invention will be described below with reference to the accompanying drawings. The accompanying drawings all illustrate embodiments of the present invention. FIG. 1 is a schematic overall perspective view showing an embodiment of a simple water meter according to the present invention. The water meter comprises a cylindrical synthetic resin water tank 10 capable of storing about 50 liters of water. The water tank 10 receives water sent from a water pump (not shown) or the like. A water supply pipe 11 serving as a water supply section for supplying the water into the water tank 10 and a water supply pipe 12 serving as a water supply section for supplying water stored in the water tank 10 to, for example, a mortar mixer or the like are provided.

A water supply pipe 11 serving as a water supply section penetrates the upper side surface of the water tank 10 from the outside to the inside thereof.
The water supply port 11k at the lower end supplies water into the water tank 10 so as to extend downward to the vicinity of the bottom surface portion 10b. The water supply pipe 12 as a water supply unit extends downward from the bottom surface 10b of the water tank 10, and can supply water collected in the water tank 10 to a mortar mixer or the like from a water supply port 12m formed in the bottom surface 10b. . Although not shown, an opening / closing valve is provided at an appropriate position of the water supply pipe 12 so that a certain amount of water is stored in the water tank 10 and is opened after the supply of water is stopped. Have been.

Further, in the water tank 10, a drain pipe 20 composed of a pipe is provided for the purpose of storing a certain amount of water in the water tank. The drain pipe 20 is made of a rigid body having a tubular shape, has a drain port 20h at an upper end thereof, penetrates a bottom face 10b of the water tank 10, and can slide up and down. is there. That is, the drain port 20h at the upper end of the drain pipe 20 can reciprocate up and down in the water tank 10. The structure for reciprocating the drain pipe 20 up and down will be described in detail later.
The support portion 2 provided at an appropriate position on the inner peripheral edge of the upper end of the water tank 10
3, a support rod 25 hangs down to the vicinity of the bottom surface 10b of the water tank 10, and the support rod 25 enters the inside of the drain pipe 20 which reciprocates up and down, as shown in FIG. Although not shown, a support arm guided by the support rod 25 and supporting the drain pipe 20 is provided at the drain port 20h, and the support arm is guided by the support rod 25 and the drain pipe 20 is supported. Reciprocates smoothly up and down.

On the side surface of the water tank in the vicinity of the drain pipe 20, there is provided a water volume scale 27 indicating the capacity of the water tank. The water volume scale 27 is a transparent or translucent strip-shaped synthetic resin plate on which a scale for the content of the water tank 10 is printed or stamped, and is provided in a window provided on a side surface of the water tank 10. It was done. This water volume scale 27 is visually observed from the lateral direction outside the water tank 10, and the water outlet 20 h of the drain pipe 20 is provided.
The amount of water on the scale indicated by the upper edge provided with
It is a constant amount of water that can be stored inside. Therefore, the user moves the drain pipe 20 up and down so that the upper edge of the drain pipe 20 conforms to the scale of the required water quantity, and adjusts the upper edge of the drain pipe 20 to the scale so that a certain amount of water can be obtained. It is easy to set. In order to move the drainpipe 20 up and down, the part of the drainpipe 20 protruding downward from the bottom surface portion 10b of the water tank 10 can be gripped by hand or the like and moved up and down.

In this embodiment, the water tank 10
A level 30 is provided at an appropriate position on the outer surface of the water tank to indicate that the water tank 10 is maintained in a horizontal state. Although not shown in the figure, legs are provided at three places on the peripheral edge of the bottom surface 10b of the water tank 10, and the legs have a structure in which the height can be adjusted up and down. Thereby, while confirming the position of the bubble in the display unit 30s of the level 30, the height of the three legs is adjusted, and the water tank 10 is adjusted.
Can be made horizontal.

A method of using the simple water meter according to the present invention having the above configuration will be described below. First of all,
Adjust the height of the three legs of the water tank 10 and check the level 30 to confirm that the water tank 10 is held horizontally. For example, when a fixed amount of 40 liters of water is stored in the water tank 10 and water is supplied to a mixer such as mortar,
The drain pipe 20 is moved up and down to the 40 liter scale of the water volume scale 27 so that its upper edge is aligned. Water supply pipe 11
Connect the piping from the water supply pump to. The open / close valve of the water pipe 12 is kept closed, and the water pipe 12 is connected to a mixer such as mortar. Since the amount of water supply per unit time of the water supply pump is known in advance, an appropriate water supply time at which the water supply amount becomes 40 liters or more is set in the timer.

[0013] The water pump is started to supply water into the water tank. Water is supplied for a time set by the timer, and water is gradually stored in the water tank 10. Before the end of the time set by the timer, the amount of water in
Liters or more, the drain port 20 at the upper end of the drain pipe 20
h, water flows into the drain pipe 20 and the water in the water tank 10 is discharged to the outside. More specifically, after the supply of water by the water supply pump becomes 40 liters or more and the water supply from the water supply pump is stopped by the operation of the timer,
Water exceeding 40 liters passes through the drain 20 from the drain 20h and is discharged to the outside of the water tank.
As a result, a certain amount of water of 40 liters is accurately measured and stored in the water tank 10. After that, the opening and closing valve of the water pipe 12 is opened, and the constant water amount 4
0 liter of water is sent to a mixer such as mortar.

In the above procedure, the water supply pump timer is set in advance so that the water supply amount is 40 liters or more, and the reason for stopping the water supply of the water supply pump after the water supply amount exceeds 40 liters is as follows. It is more accurate to measure the amount of water more accurately by supplying extra water to the meter and then stopping the water supply, and then draining the water exceeding 40 liters from the drain pipe 20 to the outside of the water tank 10. Because you can do it. That is, in the simple water meter according to the present invention, an amount of water exceeding the required planned measurement amount can be supplied from the water supply pipe 11, and after the planned measurement amount is exceeded, water supply from the water supply pipe 11 is performed. A means for stopping is provided, and after the supply of water is stopped, water exceeding a predetermined measured amount passes through the drainage pipe 20 through the drainage port 20h of the drainage pipe 20, and the water tank 1
One of the features is that it is discharged to the outside of 0.
As a result, the ripples on the surface of the water stored in the water tank 10 during the water supply disappear due to the suspension of the water supply, and the water exceeding the planned measurement amount is drained from the drain pipe 20 after that. The amount of water can be measured more accurately in a static state. Further, the water meter according to the present invention can be directly mounted on a mixer such as a mortar, or can be used by being installed on a mounting table separate from the mixer. However, if the vibration of the mixer is also taken into account, the accuracy of the measurement will be higher if it is mounted on another mounting table than if it is mounted on the mixer.
It becomes more suitable.

In the above-described embodiment, a backflow preventing means for preventing the water in the water supply pipe 11 from flowing backward after the supply of water from the water supply pump is stopped is also provided. The simplest means for preventing backflow is to provide a hole 11h in the upper part of the water supply pipe 11, that is, at a position of the water supply pipe 11 higher than the maximum water level that can be measured by the water meter. When water supply from the water supply pump is stopped due to the presence of the hole 11h, outside air is introduced from the hole, and the water level inside the water supply pipe 11 and the water level in the water tank 10 become the same, and The water will not flow back. As a result, the amount of water in the water tank 10 can be accurately measured. The water from the water supply pump is also discharged from the hole 11h during the water supply by the hole 11h. However, since the water is discharged into the water tank 10, no problem occurs. On the other hand, without providing such a hole, a check valve for preventing backflow of water may be provided at an appropriate position inside the water supply pipe 11. By providing this check valve, it is possible to prevent the water in the water supply pipe 11 from flowing backward when the supply of water from the water supply pump is stopped, thereby accurately measuring the amount of water in the water tank 10. Can be done.

FIGS. 2A and 2B show the water meter according to the above embodiment, wherein FIG. 2A is a front view and FIG. 2B is a view showing a water supply section. The water supply pipe 11 penetrates through the upper part of the side surface of the water tank 10 and extends downward to the vicinity of the bottom part 10 b of the water tank 10 in order to supply water from the outside of the water tank 10 to the inside. A support rod 25 hanging downward from the support portion 23 supports the drain pipe 20 and guides the drain pipe 20 to move up and down. The drain pipe 20 penetrates through the bottom part 10b of the water tank 10 and is slidable up and down.
A support portion 29 for supporting the drain pipe 20 is provided at a portion penetrating through the bottom surface portion 10b of the support portion 29.
A seal packing for preventing water leakage is provided on an inner peripheral portion of the through hole through which the hole passes. As can be seen from FIG. 2 (B), the bottom portion 10b of the water tank 10 is not completely horizontal, and is formed with a slight inclination so that the water supply port 12m of the water supply pipe 12 is at the lowest position.

FIGS. 3A and 3B show a part of the drain pipe 20 according to the above embodiment. FIG. 3A is a perspective view and FIG. 3B is a perspective view showing another embodiment. FIG.
(A) shows the drain pipe 20 of the above embodiment. At an appropriate position at the upper end of the inner periphery of the water tank 10, a support portion 23 is provided.
Is provided, and a support bar 25 hangs downward from the support portion 23. A cylindrical portion 20t through which the support rod 25 is inserted.
Are supported on the inner peripheral portion of the upper end of the drain pipe 20 by a plurality of arms 20a, whereby the drain pipe 20 can move up and down. That is, the support rod 25 serves as a guide rod for moving the drain pipe 20 up and down. The number of the arms 20a that support the cylindrical body 20t is
Can be set freely. A gap between the arms 20a provided at the upper end of the drain pipe 20 is a drain port 20h.
The excess water stored in the water tank 10 is discharged to the outside from the drain 20h.

An indicator ring 20r is provided at the upper end edge of the outer peripheral portion of the drain pipe 20. The indicating ring 20r serves as an indicating unit for indicating the scale of the water volume scale 27. The water amount scale 27 is formed by engraving or printing a scale indicating the amount of water stored in the water tank 10 on a transparent synthetic resin plate, and is provided on a side surface of the water tank 10 adjacent to the drain pipe 20. Therefore, when the drain pipe 20 moves up and down, the indicating ring 20r also moves up and down with this,
The indicating ring 20r indicates the scale of the water volume scale 27,
The amount of water in the water tank 10 can be read. When reading the scale of the water volume scale 27, use the indicator ring 20r.
Will read the scale indicated by the upper edge portion of.

In another embodiment of the drainage pipe 20 shown in FIG. 3B, no support bar is provided as in the above embodiment. A support portion 23 is provided at an appropriate position at the upper end of the inner periphery of the water tank 10, and an operating rod 33 that penetrates the support portion 23 vertically and can reciprocate up and down is provided on the support portion 23. The drainage pipe 20 is fixed to the lower end of the operating rod 33. Thereby, the drainage pipe 20 also moves up and down by gripping and moving the operating rod 33 protruding upward from the support portion 23 up and down.

In order to fix the drain pipe 20 at a predetermined height position, a set screw 34 is provided on the support portion 23. The set screw 34 is loosened and the operating rod 33 is moved up and down to a predetermined position. Then, tighten the set screw 34 so that the operating rod 33
And the drain pipe 20 can be fixed at a predetermined height. In the embodiment shown in FIG. 3A, such a set screw is not shown in order to prevent the drawing from being complicated, but by forming the cylindrical body portion 20t a little longer upward, A set screw is provided in this portion, and the cylindrical portion 20t is fixed to the support rod 25 by tightening the set screw, whereby the drain pipe 20 can be fixed.

Referring back to FIG. 3B, the upper end of the drain pipe 20 is fixed to the lower end of the operating rod 33, as described above. , And a plurality of drain holes 20h, 20h,.
Is provided. The bottoms of the drains 20h are all arranged at the same height, and the water stored in the water tank 10 passes through the inside of the drain pipe 20 from the drain 20h to the outside of the water tank 10. It is discharged to.

An indicator ring 20r whose upper edge coincides with the height corresponding to the lowest height of the drainage port 20h.
Is provided on the outer peripheral surface of the drain pipe 20, and the water volume scale 27 for reading the height position of the indicating ring 20 r is provided on the side surface of the water tank 10, as in the above embodiment. Therefore, also in this embodiment, the scale is read at the upper edge portion of the indicator ring 20r for indicating the scale of the water volume scale 27. The indication ring 2 as an indication unit
0r need not be provided on the entire outer surface of the drain pipe 20 at all, and may be provided only on the water volume scale 27 side. In other words, any type can be used as long as it can indicate the scale of the water volume scale 27, and it is only necessary that some kind of mark or mark that can be visually observed from the outside of the water volume scale 27 be provided.

The drainage pipe 20 having the above-described structure is gripped directly, or the operating rod 33 fixed to the drainage pipe 20 is gripped and moved up and down so that the desired water volume scale 27 is formed. The upper edge of the indicator ring 20r as an indicator provided on the drain pipe 20 is aligned with the scale, and thereafter water is stored in the water tank 10 by receiving water supply from a water supply pump or the like. Drain port 2 provided at the top of drain pipe 20
When the water level exceeds the height of 0h, the accumulated water passes through the drainage pipe 20 through the drainage port 20h, and the water tank 10
Is discharged from the inside to the outside, and a desired amount of water is supplied to the water tank 1
It can be stored in zero.

FIG. 4 is an explanatory view illustrating the leg 40 provided at the lower end of the water tank 10. As shown in FIG. The leg portion 40 is formed of a bolt-like shape having a contact portion at the tip end, that is, has a head at the upper end of the threaded rod, and has a lower end at a lower end than the outer diameter of the threaded rod. Consists of an abutment with a large outer diameter,
The screw holes provided in the support portion 41 and the screw rods thereof are screwed together, and the heads of the leg portions 40 are rotated forward and backward, so that the heights of the leg portions 40 can be adjusted. In the present embodiment, these legs 40 are provided at three places at the same interval at the lower end of the outer surface of the water tank 10, adjust the height of each of them, and level the level provided on the outer surface of the water tank. 3
By confirming with 0, the water tank 10 can be maintained horizontally above the base 50.
The number of the legs 40 may be four or more, and the legs 40 may have a structure other than the above-described structure.
Anything can be used as long as its height can be adjusted freely. As the level 30, an existing level can be used.

Although the embodiments have been described above, the design of the present invention can be changed as follows. The shape of the water tank 10 can be completely freely designed, such as a cylindrical shape or a box shape, and its size can be designed as needed. The material is also free, and may be made of metal. A lid is formed on the upper surface of the water tank 10,
The water tank 10 may be of a closed type. Further, the whole may be formed of a transparent or translucent synthetic resin. In this case, it is not necessary to manufacture the water volume scale from a separate transparent synthetic resin plate, and it is directly transparent or translucent. A scale may be engraved or printed on the side of the tank.

The water supply pipe 11 as a water supply section can be designed freely, and can be implemented without extending from the upper part of the water tank to the vicinity of the bottom part as in the above embodiment. Anything that can supply water inside may be used. However, in order to more accurately measure the amount of water, it is preferable to supply water from the bottom of the water tank as in the above embodiment. The water supply pipe 12 as a water supply part is also provided on the bottom part 1 of the water tank 10.
0b is tilted and provided at a position around the bottom surface, which is the lowest position. However, the position of the water pipe is completely free, and the center position of the bottom surface 10b is formed at the lowest position. A water supply port of the water supply pipe 12 may be provided at a site. Further, the bottom surface portion 10b may be formed of a horizontal plane.

As for the drain pipe 20, if it can be moved up and down and a drain port 20h is formed in the upper part,
Any configuration may be used. This drain pipe 20
In the above embodiment, is formed of a tubular rigid tubular body, but this tubular body may be formed of a flexible synthetic resin, or may be a bellows-shaped stretchable It may be made of synthetic resin, in which case,
It is necessary that the upper drain port is made of a metal or a hard synthetic resin, and the portion fixed to the operating rod is made of a hard material to be durable. When the drain pipe 20 is made of a flexible synthetic resin or a bellows-shaped telescopic pipe, the drain pipe 20 is attached to the bottom 10 of the water tank 10.
It is not necessary to slide up and down with respect to b, as long as it expands and contracts up and down in the water tank 10 and the height of the drain port 20h can move up and down. In this case, the drainage pipe 20 can be designed to penetrate the side surface of the water tank.

As shown in FIG. 3, the drain port 20h provided at the upper end of the drain pipe 20 has an upper end face of the drain pipe 20,
Alternatively, the drain port 20h is provided on the side surface of the upper end of the drain pipe 20, but the position where the drain port 20h is provided is not necessarily strictly limited to the upper end thereof, and is provided on the side surface slightly below the upper end thereof. It may be. That is, the drain port 20h only needs to be provided in the upper part of the drain pipe 20. The number and shape of the drains 20h can be designed completely freely. In the above embodiment, the drain 2
Although the indicator ring 20r as an indicator is provided immediately below 0h, the indicator ring 20r does not necessarily have to be directly below the drainage port 20h, but may be located slightly below or below it. It may be provided at an upper position. In this case, it is necessary to adjust the position of the water volume scale 27 in accordance with the position of the indicating ring 20r. On the other hand, as the indicating unit, other than the indicating ring 20r, as long as it can indicate the scale of the water volume scale 27,
Any form may be used. The support rod 25
In the above embodiment, the support rod 25 is provided so as to enter the inside of the drain pipe 20.
It is also possible to hang down along the vicinity of the outside of the drain pipe 20 instead of the inside of the drain pipe 20.

The structure of the legs 40 of the water tank 10 is completely free, and as described above, it is sufficient that at least three legs are formed of a material whose height can be adjusted vertically. Level 30
Also, by visually checking the air bubbles in the display unit, it is possible to use the existing type of type that can check the horizontal level,
The installation position may be any position on the side surface of the water tank or the upper surface of the water tank. Although the embodiment has been described above, the present invention is used as a water meter when supplying a fixed amount of water in combination with various mixers for mortar and the like, and has a simple structure. And
In addition, the purpose is to provide a device that can accurately measure the amount of water, and in using it, water from a water pump or the like is supplied in advance by a timer to supply a required amount of water, and a certain amount of water is supplied. After the water supply is stopped, drain the water from the drain pipe to the outside of the water tank after the water supply is stopped, accurately measure a certain amount of water, and then manually or automatically open the valve of the water supply pipe to accurately supply it to various mixers etc. It is possible to send a constant amount of water.

[0030]

The first aspect of the present invention is that the drainage port of the drainage pipe in the water tank moves up and down, and the height position of the drainage port is appropriately set, whereby the water stored in the water tank is adjusted. The amount of water can be set appropriately constant, and a certain amount of water can be accurately measured with various mixers such as mortar,
And it can be supplied. With such a simple water meter, accurate measurement and supply of the water amount becomes possible, for example, mixing of mortar raw materials and the like, and accurate mixing ratio of mixing with water can be easily realized, Problems resulting from such inappropriate mixing ratios in building construction can be prevented. Further, since the water meter according to the present invention has a very simple configuration without using a conventional expensive water meter, it greatly contributes to simple manufacturing and reduction of manufacturing cost.

According to a second aspect of the present invention, a predetermined amount of the water volume scale is made coincident with a predetermined portion of the water volume scale to easily set a fixed amount of water to be stored in the water tank. You can do it. According to the third aspect of the present invention, by adjusting the height of the legs and cooperating with the level, the level of the water tank can be accurately maintained, and the amount of water in the water tank can be measured more accurately. You can do it.

[Brief description of the drawings]

FIG. 1 is a schematic overall perspective view showing one embodiment of a simple water meter according to the present invention.

FIGS. 2A and 2B are diagrams illustrating a water meter according to the embodiment illustrated in FIG. 1, wherein FIG. 2A is a front view and FIG.

3A and 3B show a part of a drain pipe according to the embodiment shown in FIG. 1, wherein FIG. 3A is a perspective view and FIG. 3B is a perspective view showing another embodiment of the drain pipe. is there.

FIG. 4 is an explanatory diagram illustrating a leg provided at a lower end of a water tank according to the embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... water tank, 11 ... water supply pipe, 12 ... water supply pipe, 20 ... drainage pipe, 20h ... drainage port, 23 ... support part, 25 ... support rod, 2
7: water scale, 30: level, 33: operating rod, 40: leg

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (reference) G01F 25/00 G01F 25/00 G

Claims (3)

[Claims] 1. A water tank (10) provided with a water supply section (11) to which water is supplied and a water supply section (12) for sending out water, and a pipe body disposed in the water tank (10) so as to be vertically movable. A drain (20h) is provided at the upper part of the drain (20) .The drain (20h) passes through the inside of the drain (20) to form a water tank (10). The water in the water tank (10) is discharged to the outside of the tank, and by moving the drain pipe (20) up and down to set the height position of the drain port (20h), A simple water meter that is stored in a water tank (10). 2. An indicator for indicating the amount of water in the water tank (10).
(20r) is provided in the drain pipe (20), a water volume scale (27) indicating a scale for reading the water volume in the water tank (10) by the indicator (20r) is provided in the water tank (10), and the indicator (20r) is provided. ) Is adjusted to the scale of the required water volume scale (27), so that a certain amount of water is supplied to the water tank (10).
The simple water meter according to claim 1, wherein the simple water meter can be stored in the inside. 3. A water tank (10) is provided with at least three legs (40), each of which is formed from a member whose height can be adjusted, and is provided at an appropriate position of the water tank (10). Is provided with a level (30), and by adjusting the height of each leg (40) while checking the level (30), the horizontal state of the water tank (10) can be secured. Item 3. The simple water meter according to item 1 or 2.