CN2852057Y

CN2852057Y - Counter capable of measuring reverse flow

Info

Publication number: CN2852057Y
Application number: CN 200520135854
Authority: CN
Inventors: 潘柯
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-11-08
Filing date: 2005-11-08
Publication date: 2006-12-27
Anticipated expiration: 2015-11-08

Abstract

The utility model discloses a counting device capable of measuring back flow. The utility model is provided with three sensors with identical functions which are sequentially induced by induction parts on a rotating wheel. The different states of the sensors are induced out through the positive rotation or reverse rotation of the rotating wheel, which is used for judging that a flow instrument positively rotates or reversely rotates. A microcomputer carries through correcting processing for collected positive rotation and reverse rotation signals, as a consequence, the measuring accuracy of a far transmission flow instrument is ensured. The structure of the utility model is as follows: the counting device capable of measuring back flow includes the sensors, the induction parts, the rotating wheel, a shielding cover, a bracket and a soft scarfskin. The utility model is characterized in that: the rotating wheel is mounted on the bracket, the induction parts are arranged on the diameter position of the rotating wheel and the three sensors are arranged inside the back rotation plane which is corresponding with the induction parts.

Description

Can survey the refluence counting assembly

Technical field

The utility model relates to a kind of counting assembly, relates in particular to a kind of counting assembly of fluid measured flow, and the teletransmission that can be used for measuring instruments such as water meter, ammeter, gas meter is checked meter.

Background technology

Prior art utility model 96243802.2 has adopted the patrilineal line of descent with only one son in each generation sensing mode of a sensor and an inductive means in flow instrument, because the fluctuation of fluid in instrument (water meter, gas meter etc.), make sensor and inductive means repeat induction at the critical place of induction point, thereby cause error.For this reason, the applicant has adopted two Design of Sensor schemes in utility model 99206865.7, has successfully solved the induction that repeats of induction critical point.But the situation that current flow backwards, instrument is reversed can appear in (particularly water meter) in some use occasion of these instrument.The signal that produces owing to the instrument reversing can't be differentiated in this case, thereby by the wrong record that adds up, has caused error in dipping.

Summary of the invention

The purpose of this utility model is that three sensors are set, by rotating and reverse of inductive means on the rotor wheel, measure three sensors respectively and send the order of signal, thereby judge the refluence signal that the instrument counter-rotating is produced, the cumulative errors that correction in time causes are thus guaranteed the accuracy of measuring.

To achieve these goals, the utility model has adopted following technical scheme: a kind of counting assembly of surveying refluence, it comprises sensor, inductive means, runner, radome, soft crust, support.It is characterized in that: described runner is rack-mount, and described inductive means is arranged on the diametrical position of runner, with the corresponding plane of rotation of inductive means in be oppositely arranged three sensors.

Described sensor outer setting one radome.

Described sensor outside surface is provided with a soft crust.

The counting assembly of surveying refluence of the present utility model comprises the inductive means that sensor, runner, radome, soft crust and the diametrical position on runner are provided with, and it is characterized in that in the corresponding position of the plane of rotation of inductive means runner three sensors being set.This sensor can be selected tongue tube, Hall, light activated element etc. for use, and inductive means can be selected magnet steel, light emitting diode etc.

Because these sensors mostly are the fallible component that glass etc. is manufactured, the stress that employed tackifier, hardening agent produced in order to prevent from it is installed damages for distortion, also in order to prevent accidental impact, at the outside surface of sensor the soft crust of one deck is set.

Because these sensors are subject to the interference of the irregular or artificial magnetic force in the external world, light source etc., and a radome can be set in the outside of sensor device.

Description of drawings

Fig. 1 is the utility model first example structure synoptic diagram;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is the second example structure synoptic diagram of the present utility model;

Fig. 4 is the A-A cut-open view of Fig. 3.

Wherein, 1 sensor .2 inductive means .3 runner, 4. radomes, 5. soft crust 6. supports 7. glass.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing and embodiment.

Embodiment one:

Fig. 1, Fig. 2 for sensor 1 be arranged on water gage glass upper and lower and wherein and inductive means 2 be arranged on embodiment on the indicator of water gauge runner 3.

Sensor 1 among Fig. 1 can be arranged in the glass 7 or it is upper and lower, and corresponding with the inductive means 2 on the runner 3, be radome 4 in the outside of sensor 1, inductive means 2 is in the diametrical position of runner 3, runner 3 is installed on the support 6, at the outer surface of sensor one soft crust 5 is set.

Embodiment two:

Fig. 3, Fig. 4 are that sensor 1 inductive means 2 and runner 3 are arranged on water meter, ammeter or gas meter inside

The synoptic diagram of embodiment.

Among Fig. 3, runner 3 is installed on the support 6, and an inductive means 2 is set on runner 3 diametrical position, with inductive means 2 corresponding positions three sensors 1 is arranged, with sensor 1 corresponding position be radome 4.Outer surface at sensor 1 is provided with a soft crust 5.

Principle of work of the present utility model is: during flow instrument (as water meter, ammeter, gas meter) operate as normal, runner 3 rotates, inductive means 2 rotates thereupon, when inductive means 2 forward rotation during to sensor 1, three sensors are by A → B → sensed successively signal that sends of C order, its signal sequence is: A → B → C → A → B → C ..., go round and begin again with this.When the fluid in the flow instrument occur to flow backwards, when runner reverses thereupon, the induction of 2 pairs of sensors of inductive means order will Back Up, its signal sequence is B → A → C → B → A → C ...To this, microcomputer just can carry out forward and reverse identification to the signal of gathering, and makes correction process, to guarantee the accuracy of measuring instrument teletransmission metering.

Claims

1, a kind of refluence counting assembly of surveying, it comprises sensor (1), inductive means (2), runner (3), radome (4), soft crust (5), support (6), it is characterized in that: described runner (3) is installed on the support (6), diametrical position at runner (3) is oppositely arranged an inductive means (2), with the corresponding plane of rotation of inductive means (2) in be oppositely arranged three sensors (1).

2, the refluence counting assembly of surveying according to claim 1 is characterized in that: at the additional soft crust (5) of the outside surface of described sensor (1).

3, measurable flow amount counting assembly according to claim 1 is characterized in that: at outer setting one radome (4) of described sensor (1).