CN2618147Y

CN2618147Y - Intelligent water-saving telemetering watermeter

Info

Publication number: CN2618147Y
Application number: CNU032222807U
Authority: CN
Inventors: 姚平壤
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-06-02
Filing date: 2003-06-02
Publication date: 2004-05-26
Anticipated expiration: 2013-06-02

Abstract

The utility model relates to a water-saving, intelligent and remote water meter, which comprises a shell which has an inlet/outlet and a cavity, a valve base, a valve, a small stream pipe, a blade wheel, a blade wheel case, a laminate, a meter lid, magnetic steel, a plurality of Hall units, a one-chip compute and a counting remote circuit. The valve is a non-return valve; the small stream pipe is a nipple directly arranged on the wall of the valve base; a closed cavity is positioned in the center of the laminate; the magnetic steel is arranged on the blade wheel which extends into the closed cavity; two Hall units are arranged on the outside of the closed cavity; the power ends of the Hall units are connected with two I/O feet of the one-chip compute and the power is clocking controlled by the one-chip compute; the electric consumption is just a part per thousand of continuous power supply style. The utility model has the advantages of the simple structure, the low cost, the accurate count and the high sensitivity. The reading of the water meter can be conducted directly and center copied remotely. The utility model is convenient for using, reliable and stable, in particular suitable for the intelligentized system of new buildings and copying meters outside reforming of existent populated area.

Description

Water-saving intelligent telemetering water meter

Technical field:

The utility model relates to a kind of water meter, and particularly a kind of have very that high sensitivity and degree of accuracy can transmit data longer-distance domestic meter again.Belong to the instrument of measuring discharge.

Background technology:

The shortcoming of traditional mechanical type water meter mainly is can not the teletransmission data, and during clearing can only every household check meter in order to reduce trouble, found out the way that water meter goes out the family, but owing to go out that the water pipe at family is attractive in appearance not to be damaged by frost again easily, so be not good method.In order to address these problems, have magnetic card electronic water meter, IC-card electronic water meter, password electronic water meter etc. at present successively, but these water meters all need be with battery-operated.Because the energy of battery is low and the solenoid valve power consumption is big, operation stability is poor, and use cost is also higher.The teletransmission electronic water meter is made sensor as adopting tongue tube, and error in dipping is big; As adopt Hall element, then power consumption is big.The nearest water-saving type water meter that occurs, its valve is unidirectional stroke valve, its structure more complicated, the bending of weep pipeline is long and narrow, under water hammer effect, can the malfunction counting.Under the situation of weep, error in dipping is also quite big.

Summary of the invention:

The purpose of this utility model is in order to overcome the weak point of above-mentioned water meter, design a kind of simple in structure, cost is low, power consumption is little, accurate measurement, highly sensitive, again can be with the remote water-saving intelligent telemetering water meter that transmits of data.

Water-saving intelligent telemetering water meter of the present utility model comprises the housing that is provided with intake-outlet and turnover water cavity, valve seat, valve, small water flow pipe, impeller, impeller box, pressing plate, the table lid, magnet steel, Hall element, single-chip microcomputer and scaling remote transmission circuit, described valve is a retaining valve, small water flow pipe is for directly being contained in the nipple on the valve seat wall, the middle part of pressing plate is provided with annular seal space, magnet steel is contained on the impeller shaft that puts in the annular seal space, Hall element is contained in the annular seal space outside, Hall element is 2, its power end is connected with 2 I/O pin of single-chip microcomputer respectively, is subjected to its working power of single-chip microcomputer timing controlled.Described retaining valve adopts the unidirectional gravity force valve, and the caliber of small water flow pipe is 0.5-2mm, is equipped with in the annular seal space of magnet steel and is filled with pure water.Described counting shows that the teletransmission circuit comprises single-chip microcomputer U1, dead electricity storer U2,485 communication driver U3, charactron LED4, Hall element HR1 and HR2.

Water-saving intelligent telemetering water meter of the present utility model, owing to adopt the unidirectional gravity force valve of simplifying, between valve seat and impeller box, be the small water flow pipe short circuit of 0.5-2mm directly with caliber, improved sensitivity, again owing to change mechanical count into the single-chip microcomputer counting, further improved sensitivity, made the initiating flow of water meter can reach 0.6 liter/hour, realizing dripping is count enable.Because of magnet steel is contained in the annular seal space, magnet steel is separated with the tap water that flows, prevented that effectively iron rust is to the adhesion of magnet steel in the water.The power end of 2 Hall elements of cause is connected with 2 I/O pin of single-chip microcomputer respectively, use the working power of input output gate (I/O pin) the control Hall element of single-chip microcomputer, make the Hall element can be in the moment operate as normal that need export acquired signal for single-chip microcomputer, and in the outage of Hall element At All Other Times and power saving, thereby power consumption only is equivalent to the per mille of continuous power supply mode, use 2 Hall elements can discern the normal rotation or the invalid swing of impeller, and can be to half swing metering of impeller, scm software can be according to the rotating speed of impeller, adopt diverse curve coefficients calculated flow rate, make measuring accuracy very high.Adopt constant voltage dc source and high capacity maintenance-free battery centrally connected power supply, be installed in the same stainless electric appliance box with 485 network communication sockets, the realization family of checking meter out, have advantages such as simple in structure, that cost is low, power consumption is little, accurate measurement, highly sensitive, that data can be transmitted at a distance again easy to use, and is stable and reliable for performance.

Description of drawings:

Accompanying drawing 1 is the structural representation of an embodiment in the utility model:

Accompanying drawing 2 is electronic circuit sketches of the present utility model;

Accompanying drawing 3 is a kind of practical circuit reference diagrams of accompanying drawing 2.

Embodiment:

Referring to accompanying drawing 1, water-saving intelligent telemetering water meter of the present utility model comprises the housing 4 that is provided with intake-outlet and turnover water cavity, valve seat 2, valve 1, small water flow pipe 3, impeller 6, impeller box 5, pressing plate 7, table covers 9, magnet steel 11, Hall element 12, single-chip microcomputer and scaling remote transmission circuit, described valve 1 is a retaining valve, small water flow pipe 3 is for directly being contained in the nipple on the valve seat wall, the middle part of pressing plate 7 is provided with annular seal space 10, magnet steel 11 is contained on the impeller shaft that puts in the impeller 6 in the annular seal space 10, Hall element 12 is contained in the annular seal space outside, Hall element is 2, be contained in the outer both sides of annular seal space respectively, single-chip microcomputer and scaling remote transmission circuit are installed on the printed circuit board (PCB) 13, table covers glass display window 8 is housed in 9, during use, when the discharge of the water meter of flowing through very little, the acting force that the pressure differential of water delivering orifice and water inlet and valve area multiply each other is during less than the self gravitation of valve 1, valve 1 falls into valve seat 2 and has sealed normal water circulation road between them, current can only impact impeller 6 rotations by small water flow pipe 3 tangent lines that are contained between valve seat 2 and the impeller box 5, weep also can normally be measured, improved sensitivity, the initiating flow can reach 0.6 liter/hour, and dripping is count enable.When the current quantitative change of the water meter of flowing through big, the acting force that pressure differential produces is during greater than the valve self gravitation, valve moves upward and opens the normal water circulation road, the water stream channel of current by impeller box promotes the impeller rotation and measures, have simple in structure, cost is low, accurate measurement and highly sensitive advantage.Magnet steel 11 is contained on the bar magnet, the keyway of the keyhole of bar magnet bottom and impeller top axle head is inlayed, connect as one, the axle at impeller top is supported in the axle sleeve 14, and axle sleeve 14 is embedded in the pressing plate 7, with seal chamber 10 of endoporus formation of pressing plate 7, bar magnet is sealed in the annular seal space 10 of prefill pure water, isolate with the tap water of metering section cavity, thereby avoided the iron rust in the tap water to be adsorbed on harm on the bar magnet, can effectively prolong the life-span of water meter.2 Hall elements (also claiming the Hall pipe) are contained in the annular seal space outside with magnet steel 11 correspondence positions, the electronic circuit sketch of 2 Hall elements and single-chip microcomputer and scaling remote transmission circuit as shown in Figure 2, the Gnd end of 2 Hall elements is connected respectively with 2 I/O pin of single-chip microcomputer, is subjected to its working power of single-chip microcomputer timing controlled.This also is that this water meter can use 2 Hall elements and the very little key of power consumption.Other is a common circuit as circuit such as counting demonstration teletransmissions, its typical connection is shown in Fig. 3 (but not limited by Fig. 3), this counting shows that the teletransmission circuit comprises single-chip microcomputer U1, dead electricity storer U2,485 communication driver U3, charactron LED4, Hall element HR1 and HR2 and tongue tube K1, described U1 can select 8051 or 80C51 or 8751 or the single chip microcomputer of model such as 89c51 for use, the optional XR25045 of U2, optional Max487 of U3 or Max1487, optional 48 sections charactrons of charactron LED4, HR1 and HR2 optional 105 or 115; Covering the tongue tube K1 that installs the opening and closing place at table is connected between 8 pin and ground of single-chip microcomputer U1, I/O door by 8 pin of U1, gather the opening and closing signal of water meter lid, when opening table lid and check water consumption, the P0.0～P0.7 by U1 and the P2.0～P2.3 control charactron LED4 demonstration water consumption that is shifted; But otherwise do not show power saving.The Gnd pin of Hall element HR1 connects 26 pin (or other I/O pin) of U1, and its Out pin connects 12 pin of single-chip microcomputer U1.The Gnd pin of HR2 connects 27 pin (or other I/O pin) of U1, and its Out pin connects 13 pin of U1, and when single-chip microcomputer U1 is in high-impedance state with the I/O door that the Gnd pin of Hall element is connected, the Gnd of Hall element holds and be high level under the effect of pull-up resistor.The Gnd pin of Hall element and Vcc pin equipotential, Hall element are in does not have the non-productive work of power consumption state.When the I/O door conducting that single-chip microcomputer U1 is connected with the Gnd pin of Hall element, the Gnd of Hall element end is in low level, the Hall element field signal that the magnet steel of gathering the water meter turbine end produces of starting working, and give single-chip microcomputer with state transfer by the Out pin.The CS pin of dead electricity storer U2, SO pin, WP pin, SI pin, SCK pin are connected with the I/O door of P1.0～P1.4 of single-chip microcomputer U1 respectively, and single-chip microcomputer is read the numbering in the dead electricity storer in the power-up initializing process, the default coefficient and the water meter number of degrees.At work to the dead electricity memory write water meter number of degrees.The R pin of 485 communication driver U3, D pin, RE pin DE pin are connected with 10 pin, 11 pin, 6 pin of single-chip microcomputer U1 respectively, and by its communication read-write of Single-chip Controlling, the A pin of communication driver U3, B pin link to each other with 485 network-bus of water meter outside with X3 through connecting line X4.But meter reading is direct-reading both, but also teletransmission centralized automatic meter-reading, easy to use, stable and reliable for performance, power consumption is little, and the production use cost is low, is best suited for the intellectualizing system of newly-built building, is applicable to that again the family transformation of checking meter out of existing residential block uses.

Claims

1, a kind of water-saving intelligent telemetering water meter comprises the housing that is provided with intake-outlet and turnover water cavity, valve seat, valve, small water flow pipe, impeller, impeller box, pressing plate, the table lid, magnet steel, Hall element, single-chip microcomputer and scaling remote transmission circuit, it is characterized in that valve is a retaining valve, small water flow pipe is for directly being contained in the nipple on the valve seat wall, the middle part of pressing plate is provided with annular seal space, magnet steel is contained on the impeller shaft that puts in the annular seal space, Hall element is contained in the annular seal space outside, Hall element is 2, its power end is connected with 2 I/O pin of single-chip microcomputer respectively, is subjected to its working power of single-chip microcomputer timing controlled.

2, water-saving intelligent telemetering water meter as claimed in claim 1 is characterized in that one-way cock is the unidirectional gravity force valve of simplifying, and the small water flow pipe caliber is 0.5-2mm, is equipped with in the annular seal space of magnet steel and is filled with pure water.

3, water-saving intelligent telemetering water meter as claimed in claim 1 or 2, it is characterized in that described counting shows that the teletransmission circuit comprises single-chip microcomputer U1, dead electricity storer U2,485 communication driver U3, charactron LED4, Hall element HR1 and HR2, described U1 can select 8051 or 80C51 or 8751 or the single chip microcomputer of model such as 89c51 for use, the optional XR25045 of U2, optional Max487 of U3 or Max1487, optional 48 sections charactrons of charactron LED4.