JPH0515061Y2 - - Google Patents
Info
- Publication number
- JPH0515061Y2 JPH0515061Y2 JP1986070430U JP7043086U JPH0515061Y2 JP H0515061 Y2 JPH0515061 Y2 JP H0515061Y2 JP 1986070430 U JP1986070430 U JP 1986070430U JP 7043086 U JP7043086 U JP 7043086U JP H0515061 Y2 JPH0515061 Y2 JP H0515061Y2
- Authority
- JP
- Japan
- Prior art keywords
- magnet
- rotation
- receiver
- transmitter
- driven magnet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 230000007246 mechanism Effects 0.000 claims description 20
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 claims description 17
- 230000002265 prevention Effects 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 235000014676 Phragmites communis Nutrition 0.000 description 11
- 238000010586 diagram Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 238000005259 measurement Methods 0.000 description 5
- 239000011521 glass Substances 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 235000007889 Osmunda cinnamomea Nutrition 0.000 description 3
- 244000119329 Osmunda cinnamomea Species 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
Landscapes
- Measuring Volume Flow (AREA)
- Details Of Flowmeters (AREA)
Description
【考案の詳細な説明】
イ 考案の目的
イ−１ 産業上の利用分野
この考案は遠隔指示を行なう発電式水道メータ
の改良に関する。[Detailed Description of the Invention] A. Purpose of the Invention A-1. Field of Industrial Application This invention relates to an improvement of a power-generating water meter that provides remote instructions.
イ−２ 従来技術
発電式水道メータの発信器は計量部とともに地
中に埋設され、離れた場所に設置されている受信
器と２本の電線で接続されている。そして、発信
部からの電気パルスは１m3／パルスの単位流量パ
ルスが用いられている。A-2 Prior Art The transmitter of a power-generating water meter is buried underground together with the measuring section, and is connected to a receiver installed at a remote location by two electric wires. The electric pulse from the transmitter is a unit flow rate pulse of 1 m 3 /pulse.
第４図は、１は計量部で羽根車２が流体通路中
に回転可能に軸受けされていて、減速歯車列３を
介して指針４を駆動するとともに、磁気結合を構
成する駆動磁石５を回転させる。 In FIG. 4, reference numeral 1 denotes a metering unit, and an impeller 2 is rotatably supported in a fluid passage, and drives a pointer 4 via a reduction gear train 3, and also rotates a drive magnet 5 forming a magnetic coupling. let
水は入口６から入つて羽根車２を回転させて出
口７から下流に流れる。８は文字板、９はガラ
ス、１０はガラス９の中央に固定された発信器装
着用部材、１１は部材１０をガラス９に固定する
ためのナツト、１２はナツト１１とパツキン１３
とでガラス９の中央に固定された板ばねである。
なおこの図の駆動磁石５は直径方向に２極に着磁
されていて、水の通過流量40につき１回転する
よう前記減速歯車列３の歯車比が定めてある。１
４は発信器で、全体がほゞ円筒状のケースを有
し、そのケースの下端突出部１５が前記発信器装
着用部材１０の中央のくぼみにはまり、ケース外
周の溝部に前記板ばね１２が係合することで、発
信器１４が計量部１の上部に装着固定される。１
６は発信器１４の下台板１７に固定された軸１８
に回転可能に遊合するピニオン１９に固着された
従動磁石で、前記駆動磁石５とともに磁気結合を
構成し、計量部１の回転を発信器１４に伝え、40
計量する毎に１回転の速さで回転する。発信器
１４は、発電機２０と、後述するように、従動磁
石１６の回転を減速する歯輪列と、この歯輪列中
に設けた逆転止め機構７０と、歯輪列６３により
巻き上げられてエネルギーを貯えるスプリング６
２と、このスプリング６２のエネルギーを歯輪列
６３の定量回転毎に放出して前記発電機２０を間
欠駆動する間欠送り機構７１を有しており、発電
機２０のコイルに各一端を接続された２本の電線
を有する伝送用コード２３により、電気パルス
（単位流量パルス）を第５図の受信器２４に伝え
る。伝送用コード２３の２本の電線は、受信器２
４の端子箱２５内で、受信器２４の図示されてい
ないパルスモータのコイルに接続される。パルス
モータは、前記単位流量パルスを受ける都度に歩
進し、表示数字車２６を回転させ、この表示数字
車２６が積算流量をm3単位で表示する。 Water enters from the inlet 6, rotates the impeller 2, and flows downstream from the outlet 7. 8 is a dial plate, 9 is a glass, 10 is a transmitter mounting member fixed to the center of the glass 9, 11 is a nut for fixing the member 10 to the glass 9, 12 is a nut 11 and a gasket 13
This is a leaf spring fixed to the center of the glass 9 with.
The drive magnet 5 shown in this figure is magnetized into two poles in the diametrical direction, and the gear ratio of the reduction gear train 3 is determined so that it rotates once per 40 degrees of flow rate of water. 1
Reference numeral 4 denotes a transmitter, which has a case having a substantially cylindrical shape as a whole, the lower end protrusion 15 of the case fits into the recess at the center of the transmitter mounting member 10, and the leaf spring 12 is inserted into the groove on the outer periphery of the case. By engaging, the transmitter 14 is attached and fixed to the upper part of the measuring section 1. 1
6 is a shaft 18 fixed to the lower base plate 17 of the transmitter 14
A driven magnet fixed to a pinion 19 rotatably engaged with the drive magnet 5 forms a magnetic coupling with the drive magnet 5, transmits the rotation of the measuring section 1 to the transmitter 14, and transmits the rotation of the measuring section 1 to the transmitter 14.
It rotates at the speed of one rotation each time it is weighed. The transmitter 14 is wound up by a generator 20, a tooth train that decelerates the rotation of the driven magnet 16, a reverse stop mechanism 70 provided in this tooth train, and a tooth train 63, as will be described later. Spring 6 that stores energy
2, and an intermittent feeding mechanism 71 that intermittently drives the generator 20 by discharging the energy of the spring 62 every fixed rotation of the tooth train 63, and one end of each is connected to the coil of the generator 20. Electric pulses (unit flow rate pulses) are transmitted to a receiver 24 in FIG. 5 through a transmission cord 23 having two electric wires. The two wires of the transmission cord 23 are connected to the receiver 2.
4 is connected to the coil of a pulse motor (not shown) of the receiver 24. The pulse motor advances each time it receives the unit flow rate pulse and rotates the display number wheel 26, which displays the integrated flow rate in m 3 units.
発信器１４と受信器２４は第６図に示すよう
に、発電機コイル２７と、パルスモータのコイル
２７′とが２本の電線２１，２２を有する伝送用
コード２３で電気的に接続され受信器２４の前記
端子箱内の端子２８，２９で取外し可能に接続さ
れている。 As shown in FIG. 6, the transmitter 14 and the receiver 24 are electrically connected to a generator coil 27 and a pulse motor coil 27' by a transmission cord 23 having two electric wires 21 and 22 for reception. The terminals 28 and 29 in the terminal box of the device 24 are removably connected.
上記従来の発電式水道メータでは計量部１と発
信器１４が地中埋設されているため、メータの作
動確認は受信器２４の表示が単位流量パルス毎に
歩進することを目視で行なつていた。ところが、
メータ下流のじや口を全開して１〜２m3／ｈの水
を流したとしても、30分〜１時間流しつぱなし
で、ようやく１パルス歩進するだけであるため、
時間がかかり過ぎて、実用的でない。 In the above-mentioned conventional power-generating water meter, the measuring unit 1 and the transmitter 14 are buried underground, so the meter's operation can be checked by visually checking that the display on the receiver 24 advances every unit flow rate pulse. Ta. However,
Even if the water outlet downstream of the meter is fully opened and water flows at a rate of 1 to 2 m 3 /h, it will continue to flow for 30 minutes to 1 hour, and only one pulse will advance.
It takes too much time and is not practical.
水道メータの不動故障、出入口逆接続などの点
検を行なうにも同様である。そのため不動故障の
点検は長時間を要し、出入口逆接続の場合は発信
器の発電機が作動しないため不動故障と見分けが
つかない。そこで、従来、このような概念のある
場合は、メータ（計量部と発信器）を掘り起して
点検する必要があり、不便であつた。 The same applies to checking for fixed malfunctions of water meters, reverse connection of entrances and exits, etc. Therefore, it takes a long time to check for a stationary failure, and in the case of a reverse connection at the entrance/exit, it is difficult to distinguish it from a stationary failure because the transmitter's generator does not operate. Conventionally, when such a concept existed, it was necessary to dig up the meter (measuring section and transmitter) and inspect it, which was inconvenient.
上記にかんがみ、本願出願人は前記従動磁石の
回転に応じて高密度の電気パルスを発生する手段
を発信器に内蔵させ、伝送用コードに１本の電線
を追加して３本の電線で、従来の単位流量パルス
と、高密度パルスの両方を受信器迄伝送し、受信
器に設けて端子に適宜のチエツカを接続すること
で高密度パルスの有無等を判断し、メータの不動
故障、出入口逆接続、メータ下流での漏水の発見
等をメータを掘り起こすことなく短時間でできる
ようにした発電式水道メータを提案した。 In view of the above, the applicant has incorporated a means for generating high-density electric pulses in accordance with the rotation of the driven magnet into the transmitter, added one electric wire to the transmission cord, and used three electric wires. Both the conventional unit flow rate pulse and the high-density pulse are transmitted to the receiver, and by installing an appropriate checker on the receiver and connecting the terminal, the presence or absence of the high-density pulse can be determined. We proposed a power-generating water meter that allows for reverse connections and detection of water leaks downstream of the meter in a short period of time without having to dig up the meter.
この考案の発電式水道メータは実願昭59−
119020号に記載されており、その内容を以下に述
べる。 This power-generating water meter was invented in 1983.
It is described in No. 119020, and its contents are described below.
第７図において、３０は従動磁石１６の上に固
着した４極磁石で、回転軸（ピニオン）１９に取
り付けられている。その近くには磁気抵抗素子３
１が取付部材３２で下台板１７に固着されてい
る。３３は磁気抵抗素子３１に接続した電線で、
一本の前記一方の電線２２の一端に接続され、も
う一本は別に設けた電線３４の一端に接続されて
いる。伝送用コード３５は３本の電線２１，２
２，３４を有し、第８図〜第１１図の受信器２４
の端子箱２５内の端子２８，２９と３６にそれぞ
れ接続される。端子２９と３６は第９図と第１０
図に示すように雌端子３７と３８にそれぞれ電気
的に接続されている。この雌端子３７，３８には
第８図に示すようにチエツカ３９の２本の電線４
０の端に設けたプラグ４１，４２が挿入され電気
的に接続される。 In FIG. 7, reference numeral 30 denotes a quadrupole magnet fixed on the driven magnet 16, and is attached to the rotating shaft (pinion) 19. Nearby is a magnetoresistive element 3.
1 is fixed to the lower base plate 17 with a mounting member 32. 33 is an electric wire connected to the magnetoresistive element 31;
One of the electric wires 22 is connected to one end, and the other electric wire is connected to one end of a separately provided electric wire 34. The transmission cord 35 has three electric wires 21, 2
2, 34, and the receiver 24 of FIGS.
are connected to terminals 28, 29 and 36 in the terminal box 25, respectively. Terminals 29 and 36 are shown in Figures 9 and 10.
As shown in the figure, they are electrically connected to female terminals 37 and 38, respectively. These female terminals 37 and 38 have two electric wires 4 of a checker 39 as shown in FIG.
Plugs 41 and 42 provided at the ends of the 0 are inserted and electrically connected.
第８図のチエツカ３９は、２本のプラグ４１，
４２を受信器２４の端子箱の雌端子に挿入するこ
とで、発信器１４の磁気抵抗素子３１と電気的に
接続され、磁気抵抗素子３１の電気抵抗値の変化
を観測することができるものであり、電源スイツ
チ４３，内蔵電池の電圧を表示するバツテリチエ
ツカ４４、従動磁石１６が回転して磁気抵抗素子
３１の抵抗値が変動する都度点滅する動作表示ラ
ンプ４５と、メータが出入口逆接続で逆転してい
るときに点灯する逆転表示ランプ４６と、計測開
始押ボタンスイツチ４７と、バツテリチエツク押
ボタンスイツチ４８と、計測開始からの時間と、
計測開始からの積算流量とを表示する表示器４９
とを備えている。 The checker 39 in FIG. 8 has two plugs 41,
42 into the female terminal of the terminal box of the receiver 24, it is electrically connected to the magnetoresistive element 31 of the transmitter 14, and changes in the electrical resistance value of the magnetoresistive element 31 can be observed. There is a power switch 43, a battery checker 44 that displays the voltage of the built-in battery, an operation indicator lamp 45 that flashes each time the driven magnet 16 rotates and the resistance value of the magnetoresistive element 31 changes, and a meter that is reversed by reverse connection of the entrance and exit. a reversal indicator lamp 46 that lights up when the clock is on, a measurement start pushbutton switch 47, a battery check pushbutton switch 48, and the time since the start of measurement.
Display device 49 that displays the cumulative flow rate from the start of measurement
It is equipped with
発信器１４は第１２図に示すように、ピニオン
１９に固着した２極の従動磁石１６と別の４極の
磁石３０とが設けてあり、このピニオンが第１３
図の軸１８に回転可能に遊合されている。 As shown in FIG. 12, the transmitter 14 is provided with a two-pole driven magnet 16 fixed to a pinion 19 and another four-pole magnet 30.
It is rotatably coupled to a shaft 18 in the figure.
５０は２番軸５１とともに回転可能の２番歯
車、５２は２番ピニオン、５３は３番軸５４及び
３番ピニオン５５と共に回転可能の３番歯車、５
６は２番軸５１に取付けた切り欠き歯車で３番軸
５４に遊合したクラツチ歯車５７とともに前記逆
転止め機構７０を構成する。 50 is a second gear rotatable together with the second shaft 51; 52 is a second pinion; 53 is a third gear rotatable together with the third shaft 54 and third pinion 55;
Reference numeral 6 denotes a notched gear attached to the second shaft 51, and together with a clutch gear 57 loosely engaged with the third shaft 54, the reverse rotation prevention mechanism 70 is constituted.
５８は４番車、５９は５番車、６０は全舞軸、
６１は発電機２０の軸に取付けられた歯車で、ス
プリング（全舞）６２の番箱に設けたピニオンと
噛合う。従動磁石の正方向回転は２番車〜５番車
からなる減速歯輪列６３で減速されてスプリング
軸６０のスプリング（全舞）６２を巻き込む。５
番車５９とフイーリング軸６０の番箱には周知の
間欠送り機構７１が設けられている。これらの従
動磁石１６、減速歯輪列６３、逆転止め機構７
０、スプリング（全舞）６２、間欠送り機構７
１、発電機２０は第４図の従来技術と全く同じで
ある。 58 is the 4th wheel, 59 is the 5th wheel, 60 is the full axis,
61 is a gear attached to the shaft of the generator 20, and meshes with a pinion provided in the number box of the spring (zenmai) 62. The forward rotation of the driven magnet is decelerated by a reduction gear train 63 consisting of the second to fifth wheels, and winds up the spring 62 of the spring shaft 60. 5
A well-known intermittent feed mechanism 71 is provided in the number box of the number wheel 59 and the feeling shaft 60. These driven magnets 16, reduction gear train 63, and reverse stop mechanism 7
0, Spring (zenmai) 62, Intermittent feed mechanism 7
1. The generator 20 is exactly the same as the prior art shown in FIG.
今、水道メータが正常に作動しているとき、水
道メータ下流のじや口を全開し、１〜２m3／ｈの
流量を流すと、従動磁石１６は駆動磁石５に追従
して回転する。駆動磁石５の回転が第４図と同じ
40毎に１回転するものとすれば、駆動磁石５は
2.4分〜1.2分で１回転する。磁石３０が４極であ
るので、駆動磁石５の１回転の間に磁気抵抗素子
３１の抵抗値は第１４図に示すように、４回変動
する。そして１回の変動が10の流量に対応する
ため、磁気抵抗素子の抵抗値変化による高密度の
電気パルスを前記チエツカ３９で積算すれば積算
流量を10の分解能で表示できる。 Now, when the water meter is operating normally, when the downstream port of the water meter is fully opened and a flow rate of 1 to 2 m 3 /h is allowed to flow, the driven magnet 16 follows the driving magnet 5 and rotates. The rotation of the driving magnet 5 is the same as in Fig. 4.
Assuming that it rotates once every 40°, the driving magnet 5 is
One rotation takes 2.4 minutes to 1.2 minutes. Since the magnet 30 has four poles, the resistance value of the magnetoresistive element 31 changes four times during one rotation of the drive magnet 5, as shown in FIG. Since one fluctuation corresponds to 10 degrees of flow rate, if the checker 39 integrates the high-density electric pulses caused by changes in the resistance value of the magnetoresistive element, the integrated flow rate can be displayed with a resolution of 10 degrees.
水道メータの計量部１が出入口逆接続である
と、羽根車２が逆転し、駆動磁石５が連続的に逆
転する。従動磁石１６は駆動磁石５に追従して逆
転しようとするが、逆転止め機構７０により阻止
されるため継続して逆転することができない。 When the metering part 1 of the water meter has the inlet and outlet reversely connected, the impeller 2 is reversed and the drive magnet 5 is continuously reversed. The driven magnet 16 tries to follow the driving magnet 5 and rotate in reverse, but is prevented from rotating in the reverse direction continuously because it is blocked by the reverse rotation prevention mechanism 70.
逆転止め機構７０は２番軸に取付けられた切り
欠き歯車５６と、３番軸に遊合するクラツチ歯車
５７とで構成され、第１５図Ａに示すように切り
欠き歯車５６は10枚の歯を有し、各歯の一側が切
り欠いてある。又、クラツチ歯車５７は６枚の低
い歯と、４枚の高い歯とからなつている。 The reverse prevention mechanism 70 is composed of a notched gear 56 attached to the second shaft and a clutch gear 57 loosely engaged with the third shaft.As shown in FIG. 15A, the notched gear 56 has 10 teeth. , with one side of each tooth cut out. Further, the clutch gear 57 consists of six low teeth and four high teeth.
計量部１の羽根車が逆転するとき（つまり出入
口が逆接続のとき）は、第１５図Ａに示すように
駆動磁石５が時計方向に逆回転し、従動磁石もこ
れに追従して逆転しようとする。又、切り欠き歯
車５６はスプリング（全舞）６２の力で図示の破
線矢印のように反時計方向に逆回転しようとする
が、同図Ａのように、切り欠き歯車５６の歯５６
ａがクラツチ歯車５７の歯５７ａに係止されて逆
転が止められるため、従動磁石１６は同図Ａの状
態で止められる。 When the impeller of the metering section 1 rotates in reverse (that is, when the inlet and outlet are reversely connected), the driving magnet 5 rotates in the reverse clockwise direction as shown in FIG. 15A, and the driven magnet follows this and rotates in the reverse direction. shall be. Also, the notched gear 56 tries to rotate counterclockwise as shown by the broken line arrow in the figure due to the force of the spring (full swing) 62, but as shown in FIG.
a is engaged with the teeth 57a of the clutch gear 57 to prevent reverse rotation, so the driven magnet 16 is stopped in the state shown in FIG.
なお第１５図では、説明の便宜上、駆動磁石５
を外の円で、従動磁石１６を内の円で示してい
る。 Note that in FIG. 15, for convenience of explanation, the drive magnet 5
is shown in the outer circle, and the driven magnet 16 is shown in the inner circle.
この状態から、駆動磁石５がさらに45度逆転し
たときの様子を同図Ｂに示すが、従動磁石は逆転
止め機構の作用で同図Ａのまゝの状態である。さ
らに駆動磁石が回転して、同図Ａの状態から180
度（1/2回転）すると、同図Ｃの状態となり、こ
の状態をわずか過ぎると駆動磁石５と従動磁石１
６とが反撥吸収し合つて、従動磁石１６が同図Ｄ
に示す位置まで180度（1/2回転）正転する。その
ため、切り欠き歯車５６も時計方向（正方向）に
２歯だけ回転し、図示の位置に歯５６ａが移動す
る。この第９図Ｄから、駆動磁石５がさらに180
度（1/2回転）回転して同図Ａの状態に戻るまで
の間は、従動磁石１６は駆動磁石５に追従して回
転し、同図Ａの状態になると逆転止め機構７０が
作動して、従動磁石１６が停止する。このよう
に、第１５図ＤからＡまでの駆動磁石1/2回転の
間は、従動磁石が駆動磁石に追従回転し、同図Ａ
からＣまでの約半回転の間は、従動磁石が停止
し、同図Ｄの状態で瞬間的に従動磁石が半回だけ
逆転することを繰り返す。 Figure B shows how the driving magnet 5 is further reversed by 45 degrees from this state, but the driven magnet remains in the same state as shown in Figure A due to the action of the reversal prevention mechanism. The drive magnet further rotates, and from the state of A in the same figure it becomes 180 degrees.
degree (1/2 rotation), it becomes the state shown in figure C, and after this state, the driving magnet 5 and the driven magnet 1
6 repulse and absorb each other, and the driven magnet 16
Rotate forward 180 degrees (1/2 turn) to the position shown. Therefore, the notched gear 56 also rotates by two teeth clockwise (positive direction), and the teeth 56a move to the illustrated position. From this FIG. 9D, it can be seen that the driving magnet 5 is further 180
The driven magnet 16 rotates following the drive magnet 5 until it rotates 1/2 degree (1/2 turn) and returns to the state shown in A in the figure. When the state shown in A in the figure is reached, the reverse stop mechanism 70 is activated. Then, the driven magnet 16 stops. In this way, during the 1/2 rotation of the driving magnet from D to A in Fig. 15, the driven magnet rotates following the driving magnet, and as shown in Fig.
During approximately half a rotation from C to C, the driven magnet stops, and in the state shown in D in the same figure, the driven magnet momentarily reverses by half a rotation, which is repeated.
従つて、メータが出入口逆接続でメータが逆転
するときは、従動磁石１６は、駆動磁石に追従し
て半回逆転→駆動磁石半回転の間停止→瞬間的に
半回転の逆転という運動を繰り返す。このとき、
磁気抵抗素子３１の抵抗は第１６図のように変化
し、メータが正常作動の場合の第８図と異なり、
断続的に抵抗値が変るため、チエツカ３９でその
違いを判断し、メータが出入口逆接続であること
を知ることができる。 Therefore, when the meter is reversed due to the reverse connection of the entrance and exit, the driven magnet 16 follows the driving magnet and repeats the following motion: reversal for half a turn → stop for half a rotation of the driving magnet → reversal for half a rotation instantaneously. . At this time,
The resistance of the magnetoresistive element 31 changes as shown in Fig. 16, and differs from Fig. 8 when the meter is operating normally.
Since the resistance value changes intermittently, the checker 39 can determine the difference and know that the meter is connected in reverse at the entrance and exit.
なおチエツカ３９は計測開始押ボタンスイツチ
４７を押すと、時間と、積算流量の表示が零にリ
セツトされるようになつている。 Note that when the checker 39 presses the measurement start push button switch 47, the display of time and integrated flow rate is reset to zero.
磁気抵抗素子３１に作用する磁石３０は従動磁
石１６とは別の４極磁石にせず、第１７図のよう
に、磁気結合の従動磁石１６を大形にし、４極に
して、この磁界で磁気抵抗素子３１の抵抗値が変
化することも実願昭59−119020号に記載されてい
る。 The magnet 30 that acts on the magnetic resistance element 31 is not a 4-pole magnet separate from the driven magnet 16, but the magnetically coupled driven magnet 16 is made large and has 4 poles, as shown in FIG. It is also described in Utility Model Application No. 119020/1989 that the resistance value of the resistive element 31 changes.
イ−３ 本考案が解決しようとする問題点
第４図〜第６図に示す従来技術は、メータの不
動故障や出入口逆接続の懸念のある場合はメータ
（計量部と発信器）を掘り起して点検する必要が
あり、不便であつた。E-3 Problems to be Solved by the Present Invention The conventional technology shown in Figures 4 to 6 requires that the meter (measuring unit and transmitter) be dug out if there is a concern about the meter's fixed failure or reverse connection at the entrance/exit. It was inconvenient as it was necessary to inspect the
又、第７図〜第１７図に示す従来技術は、必要
に応じて受信器のチエツカ接続用端子に、チエツ
カ３９を接続することで、メータの不動故障、出
入口逆接続、メータ下流の漏水等を短時間で観測
できるものゝ、発信器と受信器との間を接続する
ために３本の電線を必要とするため、配線費用が
かさみ、コスト高になるという問題点があつた。 In addition, in the conventional technology shown in FIGS. 7 to 17, by connecting a checker 39 to the checker connection terminal of the receiver as necessary, problems such as fixed meter failure, reverse connection of the entrance and exit, water leakage downstream of the meter, etc. can be prevented. However, since it requires three wires to connect the transmitter and receiver, there is a problem in that the wiring costs are high and the cost is high.
この考案は上記にかんがみ、メータの不動故
障、出入口逆接続、メータ下流の漏水等を短時間
で観測するチエツカを受信器側で伝送線に接続す
ることで観測できるものであつて、しかも発信器
と受信器間には２本の電線を用いるだけで良い発
電式水道メータを提案するのが目的である。 In view of the above, this invention is a checker that can quickly observe problems such as fixed meter failures, reverse connections at the entrance/exit, and water leaks downstream of the meter by connecting it to the transmission line on the receiver side. The purpose is to propose a power-generating water meter that requires only two wires between the receiver and the receiver.
ロ 考案の構成
ロ−１ 問題点を解決するための手段
本考案は前記の問題点を解決するために、計量
部の駆動磁石の回転を磁気結合で伝達する従動磁
石と、この従動磁石の回転を減速する歯輪列と、
この歯輪列中に設けた逆転止め機構と、歯輪列に
より巻き上げられてエネルギーを貯えるスプリン
グと、このスプリングのエネルギーを歯輪列の定
量回転毎に放出する間欠機構と、この間欠送り機
構により間欠駆動されて単位流量パルスを発生す
る発電機と、この発信器の発電機のコイルに２本
の電線で接続され、発信器と離れた場所に設置さ
れる受信器とからなる遠隔指示式水道メータにお
いて、前記従動磁石又は従動磁石の回転軸に設け
た別の磁石に近接して有接点スイツチを配設し、
この有接点スイツチは切替接点を有していて、そ
の二つの固定接点を共通に接続したものと可動接
点の何れか一方を前記コイルの一端に、他方を前
記２本の電線の一方に接続することにより、この
有接点スイツチを介して前記コイルを前記２本の
電線に直列接続したことを特徴とするものであ
る。B. Structure of the invention B-1. Means for solving the problems In order to solve the above-mentioned problems, the present invention provides a driven magnet that transmits the rotation of the drive magnet of the measuring section through magnetic coupling, and a rotation of the driven magnet. a gear train that decelerates the
A reverse prevention mechanism provided in this tooth train, a spring that is wound up by the tooth train and stores energy, an intermittent mechanism that releases the energy of this spring every fixed rotation of the tooth train, and this intermittent feed mechanism. A remote-instruction type water supply system consisting of a generator that is driven intermittently to generate a unit flow rate pulse, and a receiver that is connected to the coil of the transmitter's generator with two electric wires and is installed at a remote location from the transmitter. In the meter, a contact switch is disposed close to the driven magnet or another magnet provided on the rotating shaft of the driven magnet,
This contact switch has a switching contact, and one of the two fixed contacts connected in common and the movable contact is connected to one end of the coil, and the other is connected to one of the two electric wires. Accordingly, the coil is connected in series to the two electric wires via this contact switch.
ロ−２ 作 用
メータを点検するときは、受信器の端子にチエ
ツカを接続して端子間の抵抗値を測定する。RO-2 Operation When checking the meter, connect a checker to the receiver terminals and measure the resistance between the terminals.
有接点スイツチは従動磁石の回転につれて作動
し、切替わり時にごく短時間だけ可動接点がどち
らの固定接点にも接していないときが生じる。 A contact switch operates as the driven magnet rotates, and during switching, there are times when the movable contact is not in contact with either fixed contact for a very short period of time.
この時間は普通mS以下の時間であるが、この
現象をチエツカで観測し、その間隔より、メータ
が正常かどうかを知ることができる。 This time is usually less than mS, but this phenomenon can be observed with a checker and from the interval it can be determined whether the meter is normal or not.
ロ−３ 実施例
第１図〜第３図の実施例で、上記従来技術と同
じ機構を果たす要素は同じ符号を付している。RO-3 EMBODIMENT In the embodiments shown in FIGS. 1 to 3, elements that perform the same mechanism as in the prior art described above are given the same reference numerals.
そしてこれらの要素についての説明は省略す
る。 Further, explanations regarding these elements will be omitted.
なお、有接点スイツチの一つの例として、リー
ドスイツチによる実施例を示す。 Note that an embodiment using a reed switch will be shown as an example of a contact switch.
この実施例では従動磁石１６の回転軸に設けた
磁石３０に近接してリードスイツチ７２が配設さ
れ、このリードスイツチ７２は第１図のように発
電機のコイル２７の一端と２本の電線２１，２２
の一方との間に挿入される。そして、リードスイ
ツチの固定接点７４と７５は電線２１と共通接続
される。可動接点７３はコイル２７に接続され
る。 In this embodiment, a reed switch 72 is disposed close to the magnet 30 provided on the rotating shaft of the driven magnet 16, and as shown in FIG. 21, 22
inserted between one of the two. Fixed contacts 74 and 75 of the reed switch are commonly connected to the electric wire 21. Movable contact 73 is connected to coil 27 .
リードスイツチ７２と磁石３０は第３図の配置
関係にあり、磁石が図のように４極に磁化されて
いるため、その１回転の間にリードスイツチの可
動接点（リード）７３は一方の固定接点（ノーマ
ルオープン）７４と、他方の固定接点（ノーマル
クローズ）７５とにそれぞれ４回ずつ接触するこ
とになるが、一方の固定接点から他方の固定接点
へ切替わるときに極めて短時間だけ可動接点が何
れの固定接点からも離れている。 The reed switch 72 and the magnet 30 are arranged in the relationship shown in Fig. 3, and since the magnet is magnetized into four poles as shown in the figure, during one rotation, the movable contact (reed) 73 of the reed switch The contact (normally open) 74 and the other fixed contact (normally closed) 75 are contacted four times each, but when switching from one fixed contact to the other, the movable contact contacts only for a very short time. is far from any fixed contact.
そしてこの機会は磁石３０の１回転の間に等間
隔に８回発生する。 This opportunity occurs eight times at equal intervals during one rotation of the magnet 30.
この現象をチエツカで観測すれば、磁石３０の
１回転につき８回の高密度パルスを得られること
になる。 If this phenomenon is observed with a checker, eight high-density pulses can be obtained per one rotation of the magnet 30.
チエツカ３９に設けるこのための回路の一例を
第１８図に示す。発電機のコイル２７と受信器の
コイル２７′とはリードスイツチ７２により図示
のように接続され、コイル２７′の両端が、チエ
ツカのブリツジ回路の一辺を形成するように、チ
エツカ内の抵抗R1，R2，R2と接続される。抵抗
R2の値は、コイル２７と２７′の並列接続の抵抗
値と同じ値に定めて、ブリツジの平衡をとるよう
にしてある。端子７６には測定用直流電圧が印加
され、ブリツジの不平衡電圧はオペアンプOPで
増巾しパルス化する。リードスイツチの接点の切
替わり時点で接点間がオープンになるときに不平
衡パルスが生じる。これは上述のように磁石３０
の１回転について８回であり、メータの正常時
で、一定速度で回転しているときは、パルス間隔
が一定となる。そして、メータが出入口逆接続で
逆回転のときは、第１５図で説明したように、従
動磁石１６が往復回転を繰り返すため、リードス
イツチは短い間隔のパルスを出したり、磁石の半
回転の間はパルスを生じなかつたりという断続動
作を行なうため、その特徴をチエツカで認識する
ことで逆転も点検できる。又、水漏れも点検でき
る。 An example of a circuit provided in the checker 39 for this purpose is shown in FIG. The generator coil 27 and the receiver coil 27' are connected as shown by a reed switch 72, and a resistor R 1 in the checker is connected so that both ends of the coil 27' form one side of the checker's bridge circuit. , R 2 , and R 2 . resistance
The value of R 2 is set to be the same as the resistance of the parallel connection of coils 27 and 27' to balance the bridge. A DC voltage for measurement is applied to the terminal 76, and the unbalanced voltage of the bridge is amplified by the operational amplifier OP and converted into a pulse. An unbalanced pulse occurs when the contacts of a reed switch open at the time of switching. This is the magnet 30 as mentioned above.
When the meter is normal and rotating at a constant speed, the pulse interval is constant. When the meter is rotating in the opposite direction due to the reverse connection of the entrance and exit, the driven magnet 16 repeats reciprocating rotation as explained in FIG. Since the motor performs an intermittent operation in which no pulse is generated, reversal can also be checked by recognizing this characteristic with a checker. You can also check for water leaks.
チエツカ３９を接続するためには、受信器の端
子ボツクス内に電線２１，２２と電気的に接続さ
れる雌端子７６，７７を第１９図Ａ，Ｂに図示す
るように設け、これにチエツカのコードに設けた
雄端子を嵌めて電気的に接続する。 In order to connect the checker 39, female terminals 76 and 77 that are electrically connected to the electric wires 21 and 22 are provided in the terminal box of the receiver as shown in FIGS. Insert the male terminal provided on the cord to make an electrical connection.
ハ 考案の効果
この考案によれば、発信器と受信器間の接続は
２本の電線ですみ、しかもチエツカを設けたので
メータの点検を簡単に行なうことができる。すな
わち、この考案は有接点スイツチを設けたものに
おいて接点の瞬時切替時のパルスをチエツカで検
出するようにしたので、メータが出入口逆接続で
逆回転のときは、従動磁石１６が往復回転を繰り
返すことにより、リードスイツチは短い間隔のパ
ルスを出したり、磁石の半回転の間はパルスを生
じなかつたりという断続操作を行なうため、その
特徴をチエツカで認識することで逆転も点検でき
る。又水漏れも点検できる利点を有する。C. Effects of the invention According to this invention, the connection between the transmitter and the receiver requires only two wires, and since a checker is provided, the meter can be easily checked. In other words, this invention uses a checker to detect the pulse at the time of instantaneous switching of the contact in a switch equipped with a contact switch, so when the meter is rotating in the reverse direction due to reverse connection of the entrance and exit, the driven magnet 16 repeats reciprocating rotation. As a result, the reed switch performs an intermittent operation, emitting pulses at short intervals or not emitting pulses during half a rotation of the magnet, so by recognizing these characteristics with a checker, reversal can also be checked. It also has the advantage of being able to check for water leaks.
第１図〜第３図はこの考案の実施例で、第１図
は電気回路図、、第２図は計量部と発信器の縦断
面、第３図は磁石３０とリードスイツチとの配置
関係を示す上面図、第４図〜第１７図は従来技術
を示し、第４図は計量部と発信器の縦断面、第５
図は受信器の正面図、第６図は電気回路図、第７
図は計量部と発信器の縦断面、第８図は受信器と
チエツカの正面図、第９図と第１０図は受信器の
端子箱の縦断面、第１１図は電気回路図、第１２
図は従動磁石のまわりの図で同図Ａは上面図、Ｂ
は縦断面図、Ｃは下面図、第１３図は発信器の輪
列を展開した縦断面、第１４図と第１６図は磁気
抵抗素子の抵抗値の変化を示す線図、第１５図は
逆転止め機構の作動を説明する図、第１７図は従
動磁石まわりを示し、同図Ａは縦断面図、Ｂは下
面図、第１８図はチエツカの回路図、第１９図Ａ
は受信器端子ボツクス部の縦断面図、第１９図Ｂ
は第１９図ＡのＢ−Ｂ断面図である。
１……計量部、５……駆動磁石、１４……発信
器、１６……従動磁石、２０……発電機、２１，
２２……電線、２４……受信器、２７……コイ
ル、３０……別の磁石、６３……歯輪列、６４…
…スプリング（全舞）、７０……逆転止め機構、
７１……間欠送り機構、７２……リードスイツ
チ、７３……可動接点、７４，７５……固定接
点。
Figures 1 to 3 show examples of this invention, with Figure 1 being an electric circuit diagram, Figure 2 being a longitudinal section of the measuring section and transmitter, and Figure 3 being the arrangement of the magnet 30 and the reed switch. FIGS. 4 to 17 show the prior art, FIG. 4 is a longitudinal section of the measuring section and transmitter, and FIG.
The figure is a front view of the receiver, Figure 6 is an electrical circuit diagram, and Figure 7 is a front view of the receiver.
The figure shows a longitudinal section of the measuring section and transmitter, Fig. 8 is a front view of the receiver and checker, Figs. 9 and 10 are longitudinal sections of the terminal box of the receiver, Fig. 11 is an electric circuit diagram, and Fig. 12
The figure shows the area around the driven magnet, with A being a top view and B being a top view.
is a longitudinal cross-sectional view, C is a bottom view, Fig. 13 is a longitudinal cross-section of the transmitter gear train developed, Figs. 14 and 16 are diagrams showing changes in the resistance value of the magnetoresistive element, and Fig. 15 is a diagram showing changes in the resistance value of the magnetoresistive element. Figure 17 is a diagram explaining the operation of the anti-reverse mechanism; Figure 17 shows the area around the driven magnet; Figure A is a vertical sectional view; Figure B is a bottom view; Figure 18 is a circuit diagram of the checker; Figure 19A is
is a vertical sectional view of the receiver terminal box section, Fig. 19B
is a sectional view taken along line BB in FIG. 19A. DESCRIPTION OF SYMBOLS 1... Measuring part, 5... Drive magnet, 14... Transmitter, 16... Driven magnet, 20... Generator, 21,
22...Electric wire, 24...Receiver, 27...Coil, 30...Another magnet, 63...Tooth gear train, 64...
...Spring (zenmai), 70...Reverse prevention mechanism,
71... Intermittent feed mechanism, 72... Reed switch, 73... Movable contact, 74, 75... Fixed contact.
Claims (1)
する従動磁石１６と、この従動磁石１６の回転を
減速する歯輪列６３と、この歯輪列６３中に設け
た逆転止め機構７０と、歯輪列６３に巻き上げら
れてエネルギーを貯えるスプリング６２と、この
スプリング６２のエネルギーを歯輪列６３の定量
回転毎に放出する間欠送り機構７１と、この間欠
送り機構７１により間欠駆動されて単位流量パル
スを発生する発電機２０とを有する発信器１４
と、この発信器１４の発電機２０のコイル２７に
２本の電線２１，２２で接続され、発信器１４と
離れた場所に設置される受信器２４とからなる遠
隔指示式水道メータにおいて、前記従動磁石１６
又は従動磁石の回転軸に設けた別の磁石３０に有
接点スイツチを配設し、この有接点スイツチは切
替接点７２を有していて、その二つの固定接点７
４，７５を共通に接続したものと可動接点７３の
何れか一方を前記コイル２７の一端に、他方を前
記２本の電線の一方に接続することにより、この
有接点スイツチ７２を介して前記コイル２７を前
記２本の電線２１，２２に直列接続するとともに
受信器側には受信器コイル２７′を設けるととも
に前記２本の電線に接続されたチエツカ３９を設
けたことを特徴とする発電式水道メータ。 A driven magnet 16 that transmits the rotation of the drive magnet 5 of the measuring section 1 through magnetic coupling, a tooth train 63 that decelerates the rotation of the driven magnet 16, and a reverse rotation prevention mechanism 70 provided in the tooth train 63. A spring 62 is wound around the tooth train 63 to store energy, an intermittent feed mechanism 71 releases the energy of the spring 62 every fixed rotation of the tooth train 63, and the intermittent feed mechanism 71 is intermittently driven to produce a unit flow rate. a generator 20 that generates pulses;
The remote indicating water meter is connected to the coil 27 of the generator 20 of the transmitter 14 by two electric wires 21 and 22, and is composed of the transmitter 14 and a receiver 24 installed at a remote location. Driven magnet 16
Alternatively, a contact switch is disposed on another magnet 30 provided on the rotating shaft of the driven magnet, and this contact switch has a switching contact 72, and the two fixed contacts 7
4 and 75 connected in common, and one of the movable contacts 73 is connected to one end of the coil 27, and the other to one of the two electric wires, the coil is connected via the contact switch 72. 27 are connected in series to the two electric wires 21 and 22, and a receiver coil 27' is provided on the receiver side, as well as a checker 39 connected to the two electric wires. meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986070430U JPH0515061Y2 (en) | 1986-05-09 | 1986-05-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986070430U JPH0515061Y2 (en) | 1986-05-09 | 1986-05-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6329721U JPS6329721U (en) | 1988-02-26 |
| JPH0515061Y2 true JPH0515061Y2 (en) | 1993-04-21 |
Family
ID=30912056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986070430U Expired - Lifetime JPH0515061Y2 (en) | 1986-05-09 | 1986-05-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0515061Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5973725A (en) * | 1982-10-20 | 1984-04-26 | Sanyo Electric Co Ltd | Control device for water boiler |
| JPS6134424B2 (en) * | 1978-07-04 | 1986-08-07 | Meiji Seika Co |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6134424U (en) * | 1984-07-31 | 1986-03-03 | 愛知時計電機株式会社 | Power generation water meter |
-
1986
- 1986-05-09 JP JP1986070430U patent/JPH0515061Y2/ja not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6134424B2 (en) * | 1978-07-04 | 1986-08-07 | Meiji Seika Co | |
| JPS5973725A (en) * | 1982-10-20 | 1984-04-26 | Sanyo Electric Co Ltd | Control device for water boiler |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6329721U (en) | 1988-02-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2426596C (en) | Self-powered fluid meter | |
| US4253341A (en) | Water meter comprising a ferromagnetic magnetoresistor coupled to a rotatable permanent magnet | |
| US3731533A (en) | Electrical generator having non-salient poles for metering shaft rotation of a turbine assembly | |
| US3685353A (en) | Self generating remote reader register | |
| GB2138609A (en) | Electronic counter for mechanical drive | |
| US6333626B1 (en) | Flow meter for converting mechanical rotation into an electronic signal | |
| US3772917A (en) | Fluid flow meter | |
| US4409848A (en) | Meter readout with DC motor impulse generator | |
| JPH0515061Y2 (en) | ||
| US2991652A (en) | Water meter system | |
| JPH0338655Y2 (en) | ||
| US3636392A (en) | Electrical generator having nonsalient poles for metering shaft rotation | |
| WO1996003721A1 (en) | Apparatus for metering and dispensing gas | |
| WO2014025285A1 (en) | Water-meter counting unit | |
| US3118075A (en) | Rotary drive electrical counting impulse generator | |
| JPS5841559B2 (en) | Operation confirmation method for power generation telemeter | |
| JPS61202119A (en) | Water flow meter inspecting device | |
| JPS6285821A (en) | Reverse connection detecting device for water meter | |
| US3992705A (en) | Remote adding and reading device for a meter | |
| RU2512693C2 (en) | Calculating block of water counter and its electric circuit | |
| US3228243A (en) | Fluid flow meter | |
| JP2501834B2 (en) | Telemetry device | |
| JPS601377Y2 (en) | fluid flow meter | |
| CN2328989Y (en) | Anti-magnet sensing water meter | |
| GB2101782A (en) | Commodity meters |