CN2176537Y

CN2176537Y - Remote measuring device of water meter or gas meter

Info

Publication number: CN2176537Y
Application number: CN 93229886
Authority: CN
Inventors: 王德卫; 杨广信; 陆平
Original assignee: ANSHAN NONDESTRUCTIVE TESTING AND PROTECTING INSTRUMENTS DEVELOPMENT Co
Current assignee: ANSHAN NONDESTRUCTIVE TESTING AND PROTECTING INSTRUMENTS DEVELOPMENT Co
Priority date: 1993-12-10
Filing date: 1993-12-10
Publication date: 1994-09-07
Anticipated expiration: 2003-12-10

Abstract

The utility model relates to a remote measuring device of a water meter or a gas meter. A magnet steel is arranged on a rotary wheel on an original water meter and gas meter; then a hall sensor is fixed on the rotary wheel. When the rotary wheel in the meter rotates, the hall sensor generates a continuous intermittent pulse signal because of the action of a magnetic field; the pulse signal is sent to a pulse step motor by a capacitor; the motor drives a digital counter; the purposes of remote display and cumulative measurement are achieved. The utility model has the characteristics of simple structure, convenient installation, accurate measurement, etc., and besides also has small working current, minimal power consuming power. The remote measuring device can be matched with a computer for carrying out automatic management.

Description

Remote measuring device of water meter or gas meter

The utility model relates to a kind of measuring apparatus, particularly a kind of water meter gas meter teletransmission measuring apparatus.

As everyone knows, water meter of using in the family and gas meter all need to collect the charges after in the person's of checking meter house lead in check meter on the spot in the scene again at present, bother the person of checking meter so not only but also bothered the user, how making water meter or gas meter centralized measure is a problem that urgency is to be solved, according to Chinese patent CN1051083A, CN2087331V, CN2077983V, patents such as CN1030135A introduced respectively adopt common sensor as, electrode, tongue tube, photoelectric tube, the magnetosensitive diode drives message register as the signals collecting head by auxiliary reclay, realizes teletransmission centralized displaying metering purpose.But they are worked in complex environment, and its precision and reliability are all very low, be easy to break down, and its working current height, power consumption is also big.At the problems referred to above, the utility model has designed a kind of Long-distance Control metering of a kind of device can carry out to(for) water meter and gas meter, it is under the structure situation that does not change former table, the count value of the accurate precision of former table, become pulse signal by sensor, directly drive demonstration through transmission line, thereby realize the metering of teletransmission centralized displaying.

The purpose of this utility model provides a kind of a kind of device for water meter and gas meter implementation teletransmission metering.

The utility model is to adopt such method to realize: water meter, gas meter teletransmission measuring apparatus is to adopt a little magnet steel is housed on the per mille on original water gauge and the gas meter or centesimal metering position or runner, again the Hall circuit sensor is fixed on approach this runner on or below, supply with Hall element by 5-12 volt direct current, when gear in the gauging table and runner rotation, the little magnet steel that is contained on gear or the runner also rotates thereupon, when little magnet steel rotates near Hall element, Hall element is owing to be subjected to the action of a magnetic field just to produce a pulse signal, and give in the capacitor storage, when little magnet steel rotates continuously, Hall element just produces a pulse signal that is interrupted continuously, and send in the capacitor storage, give the pulse step motor by capacitor storage, driven by motor digital counting device has just reached the purpose that teletransmission shows cummulative metering.

Compared with the prior art the utility model has simple in structure, easy for installation, characteristics such as accurate measurement, and this device is because the pulse signal amplitude is higher, signal quality is good, so the antijamming capability that whole remote transmitting system shows from the signals collecting to the numeral is strong, so just can guarantee the reliability and the accuracy of teletransmission display metering, and measuring accuracy can equal the precision of former gauging table fully, also to have a working current little for this device in addition, power consumption is atomic, available battery 2-5, cost is low, is 1/5th to 1/10th cost of other form, and can be supporting with computing machine, carry out automatic management.

Concrete structure of the present utility model and embodiment are provided by the following drawings.

Fig. 1 is a general structure synoptic diagram of the present utility model.

Fig. 2 is a Hall element circuit connection diagram of the present utility model.

Tying concrete structure of the present utility model and embodiment below in conjunction with accompanying drawing does with further instruction.

See shown in Figure 1: water meter, gas meter teletransmission measuring apparatus is to adopt a little magnet steel 2 is housed on the per mille on original water gauge and the gas meter or centesimal metering position gear or runner 1, volume is 3 * 3 * 1mm, again Hall circuit sensor 3 is fixed on approach this gear or runner 1 on or below the 2-5mm place, supply with Hall element 3 by 5-12 volt direct current 4, when gear in the gauging table and runner 1 rotation, the little magnet steel 2 that is contained on gear or the runner 1 also rotates thereupon, when little magnet steel 2 rotates near Hall element 3, Hall element 3 is owing to be subjected to the action of a magnetic field just to produce a pulse signal, and give in the capacitor 5, when little magnet steel 2 rotates continuously, Hall element 3 just produces a pulse signal that is interrupted continuously, and send in the capacitor 5, give pulse step motor 6 by capacitor 5, motor 6 drives digital counting device 7, has just reached the purpose of teletransmission demonstration cummulative metering.

Pulse step motor 6 drive signals in this device, the signal that needs is the pulse signal of positive and negative alternate, therefore the front end at stepper motor 6 is equipped with signal transformation electric capacity 5, substitution signal is amplified, shaping, a series of circuit functions such as triggering can prevent from again to switch on for a long time when the long-term pulse motor 6 that is caused during near Hall switch 3 of little magnet steel 2.

Their working range of used sensor 3 and stepper motor 6 is wide in this device, all can make teletransmission demonstration operate as normal when 5-12 lie prostrate, and when magnet steel 2 proximity transducers 3, working current is less than 5 milliamperes, and this working current than message register is little 12 times.

Sensor 3 adopts fixing reliably and withstand voltage nontoxic plastic packaging in the installation of former table.

Claims

1, a kind of water meter and gas meter long-distance metering device, it is by electrode, and tongue tube, photoelectric tube, magnetodiode drive message register as the signals collecting head by auxiliary reclay, realize teletransmission centralized displaying metering purpose; It is characterized in that: on metering position gear on original water gauge and the gas meter or runner (1), have a little magnet steel (2), Hall circuit sensor (3) be fixed on gear or runner (1) on or below the 2-5mm place, supply with Hall element (3) by 5-12 volt direct current (4), the output terminal of Hall element (3) connects capacitor (5), capacitor (5) is connected in pulse step motor (6), and pulse step motor (6) connects digital counting device (7).