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Zeroing counter for volumetric flowmeter

A flow meter and volumetric technology, applied in the field of zero-return counters, can solve the problems of small character wheels, confusing readings, inconvenient readings, etc., and achieve the effect of avoiding false readings

Active Publication Date: 2012-06-13
HEFEI JINGDA INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the electronic zero-return counter is in the form of external power supply, which makes it subject to the limitation of on-site power supply and explosion-proof requirements; the large-character code mechanical zero-return counter is a double-word wheel set, that is, the total accumulation word wheel set and the single accumulation word wheel The combination of groups makes the word wheel group smaller, which is not convenient for reading, and the reading confusion often occurs

Method used

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  • Zeroing counter for volumetric flowmeter
  • Zeroing counter for volumetric flowmeter
  • Zeroing counter for volumetric flowmeter

Examples

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Embodiment Construction

[0022] see figure 1 , figure 2 and image 3 In the present embodiment, a double-pointer single-time flow metering unit composed of a minute hand and an hour hand, a total cumulative metering unit composed of a word wheel group, a four-claw gear 4 connected to the transmission shaft of the flowmeter governor, and Return to zero operating mechanism; the transmission route of the four-claw gear 4 is:

[0023] Transmission route 1: the rotation of the four-claw gear 4 is transmitted to the minute hand gear Z9 through the minute hand gear set, and the minute hand gear Z9 drives the minute hand shaft 3 to rotate through the overrunning clutch 10 in the closed state, so that the minute hand 7 rotates with the minute hand shaft 3;

[0024] Transmission route 2: the rotation of the four-claw gear 4 is transmitted to the clock gear Z13 through the clock gear set, and the clock gear Z13 drives the clock assembly 8 through the overrunning clutch 10 in the engaged state, until the clock...

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Abstract

The invention discloses a zeroing counter for a volumetric flowmeter. The zeroing counter is characterized by comprising a dual-pointer single-flow metering unit consisting of a minute hand and a hour hand, a total accumulation metering unit formed by a print wheel group, a four-jaw wheel gear connected with the transmission shaft of a flowmeter governor and a zeroing operation mechanism. The invention is the zeroing counter for the volume type flow meter which has convenient, quick and accurate counting without calculation, can directly acquire online continuous metering values and single metering values.

Description

technical field [0001] The invention relates to a zero-return counter used in a positive displacement flowmeter. Background technique [0002] A positive displacement flowmeter consists of a flow transmitter and a counting mechanism. Among them, the main part of the flow transmitter is a metering chamber with a pair of symmetrical rotors and a sealed coupling; the counting mechanism includes a deceleration mechanism, an accuracy adjustment mechanism, a counting display and an electric pulse transmitter. The counting display is also called a counter. . In some occasions, not only the total cumulative amount needs to be measured, but also each single measurement value is required. For this reason, it is necessary to set a single zero return and keep the total cumulative value from returning to zero. For example, when a car is loaded with a tank of oil, from the beginning of filling to the end of filling, it is necessary to directly read out the filling volume of this time, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F11/00
Inventor 方锦华甘晓梅郑顺斌汤量智刘杰于成
Owner HEFEI JINGDA INSTR
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