RU172789U1 - METER FOR MEASURING WATER CONSUMPTION WITH PULSE OUTPUT - Google Patents

Abstract

A meter for measuring water flow with a pulse output refers to measuring instruments in the field of accounting for water flow. The utility model is performed on the basis of the Meter SVU-15 counter, in which, according to the sketch shown in FIG. 1, built-in micro switch type DM1-01C-30G-G. The wires connected to the subsequent electrical circuit that counts the pulses generated by the microswitch when the water flows are soldered to the electrical terminals of the microswitch. The utility model provides the ability to remotely retrieve information with an accuracy of 1 liter of water flow.

Description

The proposed device relates to measuring instruments in the field of accounting for water consumption.

In industry, in the public utilities, meters are used with various methods of taking readings. There are roller indicator devices - mechanical devices built on the basis of a gear system with a countdown on a scale built into the device. Often, consumers are interested in devices with a pulse output for remote information retrieval, in which the count is performed by counting the number of pulses proportional to the water flow. For example, VALTEC water meters of modifications VLF-R [Electronic resource, URL: http://valtec.ru/document/technical/VLF-R.pdf], which uses a system consisting of an impeller with a magnetic coupling, an indicator device, reed switch and wire line. According to the same principle, pulse water meters "Pulse [Electronic resource, URL: http: // water. Rf / counters / pulse-counters] are built." Insufficient, in some cases sensitivity, namely 10 liters per 1 impulse limits their applicability.

The prototype of the proposed utility model is a wing water meter SVU-15, of the Meter company [Electronic resource, URL: http://water.meter.ru/ru/meters/cvu-15/]. Its disadvantage is the lack of the ability to remotely retrieve information.

The proposed utility model is based on the prototype. The problem to which the claimed device is directed is to expand the arsenal of water metering devices with remote sensing and the ability to read with an accuracy of 1 liter. By installing a switch, type DM1-01C-30G-G [Electronic resource, URL www.platan.ru/cgi-bin/qwery.pl/id=354225782] mechanically interacting with the arrow of the dial of the water flow, it is possible to use the prototype for remote information retrieval, since at each turn of the arrow there will be a break in the electric circuit created from the switch, a device that counts the number of these breaks, for example, an electronic meter and the wires connecting them.

These results (providing remote sensing of information and a reading accuracy of 1 l) are achieved by the optimal choice of the type of switch and the location of a particular switch on the device, which ensures a minimum of mechanical influence on the reading system of the meter and the reliability of the contact of the dial arrow of the water flow with the switch. The placement of the switch (1) on the upper panel of the meter (2), ensuring the fulfillment of the stated conditions, with respect to the reference structural elements: water movement indicator (3), center line (4), cutout on the panel for the roller indicator device (5) and dial arrows the water flow (6) is illustrated by a sketch in FIG. 1. This sketch shows that the distance from the axial line of the lower left vertex of the lower edge of the switch housing, indicated by the symbol a , is 7.31 mm, the distance from the same line of the upper left vertex of the lower edge of the switch housing, indicated by the symbol b , is 7, 77 mm, the distance of the upper right vertex of the lower edge of the switch housing from the cutout on the panel for the roller indicator device, indicated by the symbol in , is 16.16 mm.

The operation of the claimed device is based on counting the number of revolutions of the counter arrow (6). The kinematic diagram of the operation of the meter for measuring water flow with a pulse output is shown in FIG. 2. It shows the relationship between the arrows of the dial of the water flow (6) and the spring lever (7) of the switch (paw) at different moments of their interaction: a) in the absence and b) in the presence of mechanical contact. Each complete turn of the arrow (it corresponds to 1 liter of water passing through the device) causes, as a result of mechanical contact of the switch with the counter arrow, an open circuit in which the switch is connected. And, having counted the number of circuit interruptions - pulses generated by the switch, the consumer fixes the amount of water passed through.

Using a switch of type DM1-01C-30G-G in the model and its location on the scale according to the sketch shown in FIG. 1 - these are the essential features of the proposed device. The main consumer properties of the model depend on them: the device’s performance, readout accuracy and the ability to remotely retrieve information. These signs are in a causal relationship with the properties of the utility model, since they determine the possibility of achieving the required technical result — obtaining a device with the required parameters and characteristics to ensure the expansion of the arsenal of technical means of accounting for water flow with remote information retrieval and the possibility of reading with an accuracy of 1 l .

These essential features of the proposed device differs from the prototype. In other words, the difference is significant. Therefore, the proposed utility model - “Counter for measuring water flow with a pulse output” - due to the presence of these significant differences, meets the criterion of “Novelty”.

The results of the comparative tests of the utility model with the original counter-prototype Meter SVU-15 are shown in FIG. 3. From those shown in FIG. 3 graphs it follows that the technical characteristics of the proposed model are not inferior to the characteristics of known and widely used, in particular, in the field of public utilities devices and, therefore, the utility model meets the criterion of "Industrial applicability".

The implementation of the utility model is performed by conventional manufacturing operations. Firstly, the transparent cover of the counting mechanism and the decorative cover with the marking of the counter are dismantled. After that, with the help of two 2.5 × 8 mm screws, the switch is secured to the desired position, which ensures reliable short-term pressing of the switch button when rotating the arrow of the dial of the water flow. Then, a hole is made in the transparent cover, for the output of electrical wires previously connected to the switch contacts, and it is returned to its original place.

In FIG. 4 presents a photograph of the proposed device, confirming the possibility of practical implementation of the utility model.

The list of attached graphic materials.

1. FIG. 1. Sketch of the placement of the DM1-01C-30G-G switch on the top panel of the SVU-15 counter. Designations on the sketch:

1 - switch, 2 - upper panel of the meter, 3 - indicator of water movement, 4 - line of axial symmetry of the front panel, 5 - roller indicator device, 6 - arrow of the circular dial of water flow; 7 - spring lever of the switch (foot) of the distance: a = 7.31 mm, b = 7.77 mm, c = 16.16 mm.

2. FIG. 2. The kinematic diagram of the pulse water meter with a switch.

The diagram shows the relationship between the arrows of the dial of the water flow (6) and the spring lever (7) of the switch (paw) at different moments of their interaction: a) in the absence and b) in the presence of mechanical contact.

3. FIG. 3. The results of comparative tests of the prototype and the proposed model in the laboratory of the Center for scientific and technical creativity of youth.

4. FIG. 4. Photograph of the proposed utility model.

Claims (1)

A meter for measuring water flow with a pulse output, comprising a meter SVU-15, characterized in that a DM1-01C-30G-G type switch is installed on the upper panel of this meter so that the distance of the lower left vertex of the lower edge of the switch housing from the center line is 7.31 mm, the distance from the same line of the upper left vertex of the lower edge of the switch housing is 7.77 mm, the distance from the upper right vertex of the lower edge of the switch housing from the cutout on the panel for the roller indicator device is 16.16 mm and the electrical contacts of the switch are connected by wires to the subsequent electrical circuit, which counts the pulses generated by the switch during the flow of water.

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