JP3003667U - Water level indicator - Google Patents

Abstract

(57) [Abstract] [Purpose] When pouring water into a bathtub or the like, it is not necessary to set the water depth each time the water level indicator sounds when it reaches a desired water depth. Provide low water level alarms. [Structure] Abdomen 22 of main body 2 formed in the shape of a dolphin
Is provided with three electrodes P1, P2, P3.
When the water level rises and the body 2 tilts, the two electrodes P1, P
2 is in water, the remaining electrode P3 is in the air, and in this state, an alarm sound is emitted.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 TECHNICAL FIELD The present invention relates to a water level alarm that sounds when a desired water depth is reached when pouring water into a bathtub or the like.

[0002]

[Prior art]

 Conventionally, the above-mentioned water level indicator is composed of a main body installed at the rim of a bathtub and an electrode connected to the main body, and is configured to hold this electrode at a desired water depth position. Is common.

[0003]

[Problems to be solved by the device]

 However, in the conventional water level indicator as described above, there is a problem that steam or water droplets adhere to the electrodes, so that malfunction easily occurs. Moreover, since the water level of the bathtub does not have to be changed each time, it is troublesome to keep the bathtub in a predetermined position each time it is used.

Therefore, the present invention has been made for the purpose of providing a water level indicator in which it is not necessary to set the water depth each time it is used, and the malfunction of the electrodes is small.

[0005]

[Means for Solving the Problems]

 In the water level indicator according to claim 1 of the present invention, in the water level indicator comprising a floating body having a waterproof structure for preventing water from entering inside, and a weight body connected by a connecting body having a predetermined length, the floating body Inside the waterproof structure of the above, a detecting means for detecting that the floating body is tilted on the water surface is provided, and above the floating body, when the detecting means detects the tilt of the floating body, an alarm sound is sent to the outside. A sounding means for emitting sound is provided. Further, in claim 2, in the detecting means, at least three electrodes exposed on the surface of the floating body are connected, two electrodes of the electrodes are in a conductive state, and another electrode is the two electrodes. In the sounding state, the sounding means is a sounding means arranged at a portion located above the water surface, which is a detecting means for detecting a state of non-conduction with the electrodes. Further, in claim 3, the adjusting means for adjusting the length of the connected body to a desired length is provided, and the shape of the floating body is a substantially spindle shape imitating an aquatic organism such as a dolphin. The body is connected to a portion corresponding to the spindle-shaped tail, the sounding means is disposed at a portion corresponding to the spindle-shaped head, and electrodes are provided on the spindle-shaped abdomen and two on the chest. One is provided for each.

[0006]

[Action]

 According to the first aspect of the present invention, when the water level indicator of the present invention is placed in a bathtub or the like to start the water supply, the weight body is on the bottom surface when the water level is less than the length of the connecting body, so the floating body is It is floating alone on the surface of the water, and the detection means does not work. Then, when the water level increases and becomes longer than the length of the connecting body, the weight body is pulled up from the bottom surface by the floating body and becomes in a state of hanging from the floating body in the water. At this time, upward buoyancy acts on the central part of the floating body, and downward force by the weight body acts on the part where the connecting body is connected.Therefore, a rotational moment is generated in the floating body and Incline to the equilibrium state. The detecting means detects such a state, and the sounding means emits an alarm sound to the outside to notify that the predetermined water level has been exceeded.

If at least three electrodes exposed on the surface of the floating body are provided as the detection means for detecting the above-mentioned state, the electrodes are electrically connected to each other when all the electrodes are underwater. Does not work. However, when the rotational moment acts on the floating body and tilts, two of the electrodes are in conduction in water and the other electrodes are in conduction in air and are not in conduction with the two electrodes. It becomes the state that is. Therefore, this state is detected by the detection means, and the sounding means is activated to emit a notification sound. At this time, since the sounding means is arranged at a portion located on the water surface, the alarm sound is diffused in the air.

Further, in the invention of claim 2, two electrodes of at least three electrodes exposed on the surface of the floating body are in a conductive state, and the other electrode is non-conductive with the two electrodes. Since the notification sound is emitted when the electrode is in the state, malfunction does not easily occur even if the electrode gets wet with water droplets or steam. Further, in the invention of claim 3, since the length of the connecting body can be adjusted to a desired length by the adjusting means, it can be set to a desired water depth. In addition, the shape of the floating body is a substantially spindle shape imitating aquatic organisms such as dolphins, and since the weight body is connected to the portion corresponding to the tail portion of the spindle shape, the water depth is deeper than the length of the connection body. Occasionally, the tail of a substantially spindle-shaped floating body sinks, and the head comes out above the water surface. Therefore, the alarm sound emitted from the sounding body provided on the head is diffused in the air.

Further, since the three electrodes are arranged on the abdomen, when the water depth is shallower than the length of the connecting body, the three electrodes are electrically connected to each other, and no alarm sound is emitted. When the water depth becomes shallower than the length of the concatenation, the two electrodes in the abdomen remain in conduction with each other in the water because the tail sinks and the head comes out above the water surface, but the chest electrode is It is exposed and becomes non-conducting with other electrodes. Therefore, this state is detected by the detection means, and a notification sound is emitted.

[0010]

【Example】

 Hereinafter, a water level indicator according to the present invention will be described in detail with reference to the drawings showing an embodiment thereof. In FIG. 1, which shows a perspective view of a water level indicator according to the present embodiment, 1 is a water level indicator, and inside a main body 2 shaped like a dolphin, an electronic circuit, a battery and a buzzer are provided, The tail portion 21 of the dolphin-shaped body is connected to the weight body 4 by the plastic chain 3. The length of the wedge 3 is adjusted to a length according to a desired water depth, and the excess wedge is fixed by a fixing tool 31 so as not to be loosened. The weight of the weight body 4 is set to be less than the weight of water corresponding to the total volume of the weight body 4 and the main body 2. That is, it is made smaller than the buoyancy of the whole so that the whole is not submerged in water.

The abdomen 22 of the dolphin-shaped main body 2 is provided with three electrodes P1, P2, P3 exposed on the surface. That is, the two electrodes P1 and P2 are arranged in a part corresponding to the abdomen 22A of the main body 2, and one electrode P3 is arranged in a part corresponding to the chest 22B. Inside the main body 2, a battery 5, an electronic circuit 6 and a piezoelectric buzzer 7 are arranged. As shown in FIG. 3, the electronic circuit 6 is configured to operate when the two electrodes P1 and P2 are in water and the remaining electrode P3 is in the air. That is, the conduction detecting circuit 61 outputs a conduction signal when the two electrodes P1 and P2 are in the conduction state. The non-conduction detecting circuit 62 outputs a non-conduction signal when the electrodes P1 and P3 are in the non-conduction state. The determination circuit 63 outputs a detection signal only when the conduction signal is input and when the non-conduction signal is input. The oscillation circuit 64 outputs a low frequency signal of 1 kHz or higher when the detection signal is input. The output terminal of the oscillator circuit 64 is connected to the piezoelectric buzzer 7. The piezoelectric buzzer 7 is arranged in a head 23 of a dolphin-shaped main body in a hole 24 provided in a portion corresponding to a mouth and covered with a waterproof film.

The water level indicator 1 having the above configuration is put in a bathtub to start water supply. When the water level in the bathtub is [A] shown in FIG. 2, since the water depth is shallower than the length of the wedge 3, the weight body 4 does not act on the main body 2, and the weight 2A shown in FIG. In addition, the main body 2 alone is in a state of floating on the water surface. At this time, the piezoelectric buzzer 7 does not ring because all three electrodes are in water and are in mutual conduction. When the water level rises and becomes deeper than the length of the wedge 3 as shown in FIG. 2B, the buoyancy of the main body 2 is larger than the weight of the weight body 4, so the weight body 4 Is lifted from the bottom of the bath and floated in the water. At this time, since the wedge 3 is connected to the dolphin-shaped tail portion 21, the tail portion 21 sinks, and the main body 2 is in a slanted state, as in 2B shown in FIG. At this time, of the three electrodes, one electrode P3 is exposed in the air, and the other electrodes P1 and P2 are in water. Therefore, the two electrodes P1 and P2 are in a conductive state with each other, but the electrode P3 is in a non-conductive state with both of the other electrodes P1 and P2, so that the piezoelectric buzzer 7 sounds. In this way, the fact that the water level in the bathtub has reached the desired water level is notified.

At this time, since the piezoelectric buzzer 7 sounds in a state of facing the air, it can be clearly recognized by a person in another room. Also, the sound is set to a relatively high pitch of 1 kHz or higher, so it can reach far away clearly. When the water level indicator 1 is not used, by pulling it up from the water, each transistor that constitutes the electronic circuit 6 is in the cut-off state, and the power consumption becomes small. In particular, by using C-MOS type integrated circuits, low power consumption can be achieved and battery life can be extended. Therefore, there is no problem even if the power switch is not provided. Of course, a power switch may be provided.

When changing the water depth at which the water level indicator operates, it is sufficient to operate the fixture 31 of the wedge 3 to extend or contract, so that anyone can easily change it. Moreover, the water depth once set does not change unless the above-mentioned change operation is performed, so it is a suitable water level indicator for water depths that do not change with the day. Further, the main body 2 is divided into two parts at the body portion, and has a waterproof structure by tightening with an O-ring sandwiched therebetween. In addition, it is advisable to add a registration mark as a mark when fitting the main body divided into two parts. A film is attached to the inside of the hole 24 of the head portion 23 in which the piezoelectric buzzer 7 is arranged to provide a waterproof structure. If at least three protrusions 25, 25, 25 are provided in the vicinity of the electrodes, when the water level indicator 1 is not used and placed on the floor surface of the bathtub or the like, the electrodes come into contact with the floor surface and It is possible to prevent malfunction due to electrical connection caused by water droplets.

In this way, according to the water level indicator 1, when the body reaches a predetermined water depth, the body 2 is tilted by the weight body 4 and one of the electrodes P3 is exposed in the air to inform the person. Since it emits a sound, it is possible to know that the water level has reached a predetermined level even at a remote place. Therefore, there is an effect that it is possible to prevent waste such that water overflows from the bath without noticing the full state. Further, since the weight body 4 has a weight less than the buoyancy of the whole, it is possible to prevent the whole body from being submerged in water. Further, since the notification sound is emitted when one of the three electrodes is exposed in the air, the effect of eliminating malfunction due to water droplets or the like can be obtained. In addition, since the entire shape is formed into a dolphin shape, it is suitable as a toy for children, and the effect that the child is happy and helps to supply water to the bathtub can be obtained. In addition, because the piezoelectric buzzer was installed in the hole 24 that imitates the mouth of the head 23, it seems that the dolphin is showing its water level to show the water level, which is lovely and has excellent commercial value. Will be things.

Note that the circuit configuration of the electronic circuit 6 is not limited to the configuration shown in FIG. 3, and it goes without saying that the circuit configuration performing the same operation can be realized by various configurations. The shape of the main body is not limited to the dolphin shape, and may be imitated to the shape of a whale or other aquatic organism. Further, it may be imitated as a doll or various shapes, as long as it is configured to rotate and incline when the weight body is loaded. At this time, it is sufficient if at least one electrode is located above the water surface and the other electrode is located below the water surface. For example, the main body may be a spherical floating body, and when the water depth becomes deep, the spherical body may rotate and emit a notification sound.

[0017]

[Effect of device]

 In this way, according to the water level indicator of claim 1 of the present invention, when the weight body tilts the floating body due to the water depth exceeding the predetermined depth, a warning sound is emitted, so that the predetermined water level is reached. It is possible to know that it has become unnecessary and to prevent wasteful flooding. Further, according to the water level indicator of claim 2, at least three electrodes are provided, and the alarm sound is emitted when at least one electrode is above the water surface and the other electrodes are below the water surface. Therefore, it is possible to prevent malfunction due to water droplets or steam, and to provide a highly reliable water level indicator. In addition, since the water depth at which the alarm operates is set by the length of the connecting body that connects the main body and the weight body, it is not necessary to set the water depth at which the alarm operates each time it is used. Is obtained.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of a water level indicator according to the present invention.

FIG. 2 is an explanatory view illustrating a usage state of the water level indicator according to the present invention.

FIG. 3 is a configuration diagram of an electronic circuit of the water level indicator.

[Explanation of symbols]

 1 Water Level Alarm 2 Main Body (Floating Body) 3 Wedge (Connected Body) 4 Weight Body 21 Tail 22 Abdomen 22A Abdomen 22B Chest 23 Head 24 Holes 6 Electronic Circuit (Detecting Means) 7 Piezoelectric Buzzer (Sounding Means) P1, P2, P3 electrode

Claims (3)

[Scope of utility model registration request] 1. A water level indicator in which a weight body is connected to a floating body having a waterproof structure for preventing water from entering the inside, wherein the waterproof structure of the floating body has Detection means for detecting that the floating body is tilted on the water surface is provided, and a sounding means for emitting a notification sound to the outside when the tilting of the floating body is detected is provided above the floating body. A water level indicator. 2. The detecting means is such that at least three electrodes exposed on the surface of the floating body are connected, two of the electrodes are in a conducting state, and the other electrode is not connected to the two electrodes. The detecting means for detecting a state of being in a conducting state, wherein the sounding means is a sounding means arranged at a portion located on the water surface in the sounding state.
Water level alarm described in. 3. The adjusting means for adjusting the length of the connecting body to a desired length is provided, and the shape of the floating body is a substantially spindle shape imitating aquatic organisms such as dolphins, and the weight body is The sounding unit is connected to a portion corresponding to the spindle-shaped tail portion, the sounding means is disposed at a portion corresponding to the spindle-shaped head portion, and two electrodes are provided on the spindle-shaped abdomen and one on the chest, respectively. The water level alarm according to claim 1, wherein the water level alarm is provided.