CN205483134U - Measurement meter reading structure and reading device based on pressure - Google Patents

Abstract

The utility model relates to a measurement apparatus count field, especially a measurement meter reading structure and reading device based on pressure. Include, the atress module, the atress module includes spring and plane, contain the runner of at least one bellying on the circumference, with inductance to the digital converter that the spring concatenated. The utility model discloses a set up spring and inductance to digital converter, set up the bellying simultaneously on the runner circumference, let the bellying and the plane of spring free end extrude, the spring shortens, and then inductance to digital converter sensing arrives the spring shortens back generate current pulse to realizing the count, not relating to any magnet among the whole metering device, simultaneously, runner and atress module itself need not supplied power, in energy -conservation very big improvement the interference killing feature of device.

Description

A kind of gauge table reading structure based on pressure and reading plotter

Technical field

This utility model relates to metering device counted fields, a kind of gauge table reading structure based on pressure and Reading plotter.

Background technology

Traditional fluid metering instrument (water meter, gas meter etc.) uses fluid driven runner (to set on described runner periphery more It is referred to as character wheel after setting to 0-9 ten digits) rotate, magnet steel is set on runner simultaneously, and then by Hall element or tongue tube Element senses magnet steel position, thus realize the reading to runner, but in actual applications, use the above-mentioned mode to runner reading Often cause error in reading due to problems such as mechanical vibration, electromagnetic interference, magnet steel demagnetizations.

Utility model content

Goal of the invention of the present utility model is, is positioned at for existing employing Hall element or tongue tube element senses and turns The mode of the magnet steel position on wheel carries out easy being moved back by mechanical vibration, electromagnetic interference, magnet steel of the reading mode existence of runner reading The interference of the problems such as magnetic, thus the problem causing error in reading, it is provided that a kind of gauge table reading based on pressure without magnetic is tied Structure.

To achieve these goals, the technical solution adopted in the utility model is:

A kind of gauge table reading structure based on pressure, including,

Stress module, described stress module includes the spring that an one end is fixedly installed, and one is fixedly installed on described The plane of spring free end termination；

Runner, the circumference of described runner comprises at least one lobe, and described runner is vertically set on described plane one Side, when runner rotates, described lobe extrudes with described plane, and meanwhile, the part beyond runner circumference upper projecting portion exists During rotation not with described plane contact；

Inductance, to digital converter, concatenates with described spring, for producing current impulse when described spring contraction.

That is, when being vertically set on the runner rotation of plane side, when lobe extrudes described plane, both sides squeeze Pressure, the most described spring will shorten under stress, and inductance can detect the deformation of spring to digital converter and produce electricity Stream pulse, and described in the portion extrusion beyond lobe during plane, runner and described plane depart from, now spring will not occur shape Becoming, the most described inductance to digital converter also will not produce current impulse.

Preferably, described inductance to digital converter is LDC1000.

In some embodiments, the lobe on described runner circumference is one, and described lobe accounts for the radian of runner circumference Being 10 degree of-270 degree, now, when the lobe of runner circumference extrudes described plane, inductance senses spring to digital converter Contraction and persistently produce current impulse, but owing to lobe is only one, therefore runner often rotates a circle, described inductance is extremely Digital converter only produces primary current pulse.

Preferably, described lobe accounts for the radian of runner circumference is 180 degree.

In some embodiments, described stress module is two, and it is relative to the rotating shaft setting symmetrically or non-symmetrically of runner.

In other embodiment, the lobe on described runner circumference is ten, and described ten lobe are uniformly to divide Cloth, it is more than 0 degree that each described lobe accounts for the radian of runner circumference, less than or equal to 15 degree, now, squeezes whenever there being lobe Pressing described plane, the most described inductance to digital converter produces primary current pulse, and therefore runner often rotates a circle, described inductance 10 subpulses, the most corresponding 10 place readings can be produced to digital converter.

This utility model provides a kind of gauge table reading plotter based on piezoelectricity simultaneously, comprises processing module and as above institute The reading structure stated,

Described processing module is connected to digital converter with described inductance, is used for receiving described current impulse, and according to institute The quantity stating current impulse counts.

In sum, owing to have employed technique scheme, the beneficial effects of the utility model are:

This utility model is by arranging spring and inductance to digital converter, simultaneously in runner lobe provided circumferentially about, The lobe plane extruding with spring free end, the shortening of described spring, and then described inductance to digital converter is allowed to sense institute State and after spring shortens, produce current impulse, thus realize counting, whole metering device is not related to any magnet, meanwhile, runner And stress module itself is not required to power supply, while energy-conservation, greatly improve the capacity of resisting disturbance of device.

Accompanying drawing explanation

Fig. 1 is a specific embodiment of the reading structure that this utility model provides.

Fig. 2 is another specific embodiment of the reading structure that this utility model provides.

Fig. 3 is another specific embodiment of the reading structure that this utility model provides.

The structured flowchart of the reading plotter that Fig. 4 provides for this utility model.

Reference: 1-reading structure；11-runner, 111-lobe, 12-stress module, 121-plane, 122-spring, 13-inductance is to digital converter, 2-processing module

Detailed description of the invention

Below in conjunction with the accompanying drawings, this utility model is described in detail.

In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing and enforcement Example, is further elaborated to this utility model.Should be appreciated that specific embodiment described herein is only in order to explain this Utility model, is not used to limit this utility model.

Embodiment 1: as shown in Figure 1 and Figure 2, the present embodiment provides a kind of gauge table reading structure 1 based on pressure, bag Include,

Stress module 12, described stress module includes the spring 122 that an one end is fixedly installed, and one is fixedly installed on The plane 121 of described spring free end termination；

Runner 11, the circumference of described runner comprises at least one lobe 111, and described runner 11 is vertically set on described Plane 121 side, when runner 11 rotates, described lobe 111 extrudes with described plane 121, meanwhile, on runner 11 circumference Part beyond lobe 111 does not contacts with described plane 121；

Inductance, to digital converter 13, concatenates with described spring 122, for producing electric current when described spring 122 shrinks Pulse.

That is, when being vertically set on the runner rotation of described plane 121 side, when lobe 111 extrudes described plane 121 Time, described spring 122 will shorten under stress, and inductance can detect the deformation of spring 122 to digital converter 13 and produce Raw current impulse, and described in the portion extrusion beyond lobe 111 during plane 121, runner 11 and described plane 121 depart from, this Time spring 122 will not deform upon, the most described inductance to digital converter 13 also will not produce current impulse.

Preferably, described inductance to digital converter is LDC1000.

In some embodiments, the lobe 111 on described runner 11 circumference is one, and described lobe 111 accounts for runner 11 The radian of circumference is 10 degree of-270 degree, as the lobe 111 in Fig. 1 accounts for radian θ=20 degree of runner 11 circumference, and convex in Fig. 2 Play portion 111 and account for radian θ=180 degree of runner 11 circumference, now, when the lobe 111 of runner 11 circumference extrudes described plane 121 Time, described inductance to digital converter 13 persistently produces current impulse, but owing to lobe 111 is only one, therefore runner 11 often rotate a circle, and described inductance to digital converter 13 only produces primary current pulse.

Embodiment 2: in the present embodiment, described stress module 12 is two, and it is symmetrical relative to the rotating shaft of runner 11 or non- Symmetrical setting.Now, each lobe 111 rotates a circle and can produce twice current impulse.Can be by judging two stress moulds Block 12 produces the sequencing of pulse and judges the direction of rotation of runner 11.

Embodiment 3: as it is shown on figure 3, be with embodiment 1 difference, in the present embodiment, convex on described runner 11 circumference Playing portion 111 is ten, and described ten lobe 111 sizes are identical and for being evenly distributed on runner circumference, each described projection It is more than 0 degree that portion 111 accounts for the radian of runner 11 circumference, less than or equal to 15 degree, now, described whenever there being lobe 111 to extrude During plane 121, described spring 122 shortens, and the most described inductance produces primary current pulse, therefore runner 11 to digital converter 13 Often rotating a circle, described inductance to digital converter 13 can produce 10 subpulses, the most corresponding 10 place readings, it is noted that Interval should be necessary between each lobe 111, to ensure that only having a lobe 111 puts down with described simultaneously on runner 11 circumference Face 121 extrudes, and the radian accounting for runner circumference such as lobe 111 each in Fig. 3 is 10 degree.

Embodiment 4: as shown in Figure 4, the present embodiment provides a kind of gauge table reading plotter based on pressure, comprises process Module 1 and the reading structure 1 provided such as embodiment 1 or 2, described processing module 1 is connected to digital converter 13 with described inductance, For receiving described current impulse, and count according to the quantity of described current impulse.It is well known that described inductance is extremely The current impulse that digital converter 13 the produces module that also needs to could to be processed after a series of process processes easily, phase Close content and be known in the art general knowledge, be not repeated herein.

The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all at this Any amendment, equivalent and the improvement etc. made within the spirit of utility model and principle, should be included in this utility model Protection domain within.

Claims (7)

1. a gauge table reading structure based on pressure, it is characterised in that include,

Stress module, described stress module includes the spring that an one end is fixedly installed, and one is fixedly installed on described spring The plane of free end termination；

Runner, the circumference of described runner comprises at least one lobe, and described runner is vertically set on described plane side, turns When wheel rotates, described lobe extrudes with described plane, and meanwhile, the part beyond runner circumference upper projecting portion is when rotated Not with described plane contact；

Inductance, to digital converter, concatenates with described spring, for producing current impulse when described spring contraction.

Reading structure the most according to claim 1, it is characterised in that described inductance to digital converter is LDC1000.

Reading structure the most according to claim 1, it is characterised in that the lobe on described runner circumference is one, institute Stating lobe and accounting for the radian of runner circumference is 10 degree of-270 degree.

Reading structure the most according to claim 3, it is characterised in that described lobe accounts for the circumference arc of runner circumference and is 180 degree.

Reading structure the most according to claim 1, it is characterised in that the lobe on described runner circumference is ten, institute State ten lobe for being uniformly distributed, and each described lobe accounts for the radian of runner circumference for more than 0 degree, less than or equal to 15 Degree.

Reading structure the most according to claim 1, it is characterised in that described stress module is two, and it is relative to runner Rotating shaft setting symmetrically or non-symmetrically.

7. a gauge table reading plotter based on piezoelectricity, it is characterised in that comprise processing module and such as claim 1 to 6 Reading structure described in any one,

Described processing module is connected to digital converter with described inductance, is used for receiving described current impulse, and according to described electricity The quantity of stream pulse counts.