CN2212220Y - Passive counting sensor - Google Patents
Passive counting sensor Download PDFInfo
- Publication number
- CN2212220Y CN2212220Y CN 94216121 CN94216121U CN2212220Y CN 2212220 Y CN2212220 Y CN 2212220Y CN 94216121 CN94216121 CN 94216121 CN 94216121 U CN94216121 U CN 94216121U CN 2212220 Y CN2212220 Y CN 2212220Y
- Authority
- CN
- China
- Prior art keywords
- wheel
- resistance
- resistive band
- ejector
- character wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a passive counting sensor, which is composed of a driving wheel (1), a resistance changing character wheel (2), a character wheel shaft (3), a small wheel (4), a small wheel shaft (5), a frame (6), a resistance belt start point educing device (7) and a bit sensing educing device (9), wherein, the resistance changing character wheel (2), the resistance belt start point educing device (7) and the bit sensing educing device (9) are matched to form a measuring loop which is converted to the rotary numbers of a counter through relevant devices for realizing long line passive counting sense. The utility model not only can directly read from the counter, but also can transmit data for long line. The passive counting sensor has reasonable design, simple structure, easy fabrication and stable performance, and is an ideal energy-saving sensor product.
Description
The utility model belongs to a kind of sensor for countering, is a kind of passive mechanical count sensor.
The existing mechanical counter belongs to the character wheel formula, generally is made up of power wheel, character wheel and print wheel shaft, steamboat and wheel shaft and framework, can directly read the accumulative total revolution, and its deficiency is to realize long line data transmission, promptly remote revolution speed measuring.Though also have on mechanical counter needs the character wheel of count transmitted and install contact switch, optoelectronic switch, magnetosensitive switch etc. additional, make to rely on and add the active counting sensing device that electric energy could detect the break-make number of times, but all need to the power supply in real time of this device, transmit so that in time carry out signal, count by other mechanism again.Under supply of electrical energy shortage situation or power pack when breaking down, can't guarantee data transmission at all, often cause meter reading inconsistent with the transmission counting.Chinese patent 92220240.0 is disclosed to be exactly a kind of mechanical counter that can export the electrical data signal breath.Its principal feature is: fix a little magnet steel that rotates with character wheel on a character wheel, fix a tongue tube that links to each other with the output signal lead at the correspondence position of counter framework, when character wheel forwarded the tongue tube position to, the tongue tube adhesive once, circuit is switched on, and counting once.When in case power supply appearance outage or circuit have fault, its tongue tube exercise void, count transmitted will be interrupted, and causes error in data.Moreover power supply in real time also must cause waste of energy.
The purpose of this utility model designs a kind of simple in structure, stable performance exactly and does not rely on electric energy in the counting process at ordinary times, only relies on the memory of counter self device, relies on add-on device to read the passive sensor for countering of counting during measurement.
The purpose of this utility model realizes by following structure: passive sensor for countering is made up of power wheel, change resistance character wheel and print wheel shaft, steamboat and little wheel shaft, framework, resistive band starting point ejector and position sensing ejector etc.Become the resistance character wheel and adopt senior resistance base-material, requirement according to mechanical counter, adopt resistance material to make the linear resistance band along one week of wheel rim cylinder on the wheel rim cylinder of character wheel, its resistance, precision, resolution, wearing quality, stability and the linearity are decided on the measuring equipment requirement.Resistive band starting point ejector is mainly made by electric conductivity good metal spring.Metal spring can be selected spring wire or spring leaf etc. for use.On character wheel wheel rim cylinder, get and a bit be the resistive band starting point, reserve the hole slot of a mounting spring herein along radial direction along adradialia bottom surface in the character wheel, resistive band should disconnect at the place, also reserve hole slot at character wheel wheel hub correspondence position, spring one end inserts character wheel wheel rim cylinder hole slot, and with resistive band starting point firm welding, the other end inserts in the character wheel wheel hub hole slot, and rely on its elastic force to keep good with the sliding contact of metal print wheel shaft, form a common junction by the metal print wheel shaft.Position sensing ejector is mainly made by the power spring pin.On counter framework one side frame body, reserve several and become the corresponding hole slot of resistance character wheel resistive band, so that the power spring pin is installed, or directly on framework fixed brush make a sensing ejector, make that to become resistance character wheel resistive band all good with a sensing ejector sliding contact in any position.Resistive band starting point ejector cooperates with position sensing ejector, when meeting mechanical counter rotation counting, when becoming the resistance character wheel and turning to a certain position, form the measurement loop by level sensor ejector and metal print wheel shaft common junction, just can realize the purpose of the passive counting sensing of long line by measuring resistance respectively or be directly changed into the counter revolution by electronics and computer apparatus about surveying the resistance device.
Accompanying drawing 1 is a kind of passive sensor for countering front view
Accompanying drawing 2 is a kind of passive sensor for countering cut-open view
Introduce a kind of embodiment of passive sensor for countering below in conjunction with accompanying drawing 1,2.This embodiment is applicable to the gas meter, flow meter automatic meter reading system.Passive sensor for countering is made up of power wheel (1), change resistance character wheel (2) and print wheel shaft (3), steamboat (4) and little wheel shaft (5), framework (6), resistive band starting point ejector (7) and a position sensing ejector (9).Becoming resistance character wheel (2) is made according to the requirement of mechanical counter by the advanced ceramic base-material, adopt the glass glaze resistance material to make the linear resistance band along one week of wheel rim cylinder on the wheel rim cylinder of character wheel (2), its resistance, precision, resolution, wearing quality, stability and the linearity are decided on the requirement of gas meter, flow meter automatic meter reading system.Becoming stopband starting point ejector (7) is made by electric conductivity good metal spring wire, " 0 " the count tag position that becomes resistance character wheel (2) wheel rim cylinder is the resistive band starting point, reserve the circular hole of a mounting spring silk (7) herein along radial direction along interior adradialia bottom surface, resistive band disconnects herein, also reserve circular hole at the wheel hub correspondence position, spring wire (7) one ends insert wheel rim cylinder circular hole, and with resistive band starting point firm welding, the other end inserts in the circular hole of wheel hub, and rely on its elastic force to keep good, thereby form a common junction (8) by metal print wheel shaft (3) with metal print wheel shaft (3) sliding contact.Position sensing ejector (9) is made of conduction pellet shot from a slingshot (10), spring (11), screw (12), on counter framework (6) one side frame bodies, reserve several and become the corresponding circular hole of resistance character wheel (2) wheel rim cylinder resistive band, so that conduction pellet shot from a slingshot (10), spring (11) and screw (12) are installed, make resistive band all good with position sensing ejector sliding contact in any position.Common junction (8) by screw (12) that becomes resistance character wheel (2), position sensing ejector (9) and metal print wheel shaft (3) forms the measurement loop.Constitute the gas meter, flow meter automatic meter reading system by relevant electronics and computer apparatus again.
Passive counting sensor compared with prior art has following characteristics:
The utility model can be from the direct reading of counter, again can long line transfer of data, and reasonable in design, simple in structure, be easy to make, stable performance. Do not need at ordinary times electric energy, only rely on the memory of sensing, device self device, rely on add-on device to read counting during measurement. Cooperate special purpose computer can form centralized test system. Be specially adapted to lead with automatic meter reading systems such as gas meter, flow meter, ammeters. Be a kind of desirable energy-saving product sensor, have wide market prospects.
Claims (4)
1, a kind of passive sensor for countering, comprise power wheel (1), character wheel (2), print wheel shaft (3), steamboat (4), little wheel shaft (5), framework (6), it is characterized in that: adopt to become resistance character wheel (2) and set up resistive band starting point ejector (7) and position sensing ejector (9), become resistance character wheel (2) and adopt senior resistance base-material, requirement according to mechanical counter, make the linear resistance band with resistance material on character wheel (2) wheel rim cylinder, resistive band is along one week of wheel rim cylinder; Resistive band starting point ejector (7) is made by metal spring, on the wheel rim cylinder, get and a bit be the resistive band starting point, reserve the hole slot of a mounting spring (7) herein along radial direction along the interior adradialia of character wheel (2) bottom surface, resistive band disconnects herein, also reserve hole slot at character wheel (2) wheel hub correspondence position, spring (7) one ends insert wheel rim cylinder hole slot, with resistive band starting point firm welding, the other end inserts in the wheel hub hole slot, and rely on its elastic force to keep good with metal print wheel shaft (3) sliding contact, form a common junction (8) by print wheel shaft (3); Position sensing ejector (9) is mainly made by the power spring pin, on counter framework one side frame body, reserve several and the corresponding hole slot of wheel rim cylinder resistive band, so that the installation position sensing is drawn power spring pin (9), make character wheel (2) resistive band all good with position sensing ejector (9) sliding contact in any position.
2, passive sensor for countering as claimed in claim 1 is characterized in that becoming resistance character wheel (2) and adopts advanced ceramic resistance base-material.
3, passive sensor for countering as claimed in claim 1 is characterized in that the spring wire or the spring leaf of the metal spring of resistive band starting point ejector (7).
4, passive sensor for countering as claimed in claim 1 is characterized in that a power spring pin of sensing ejector (9) made by pellet shot from a slingshot (10), spring (11), screw (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94216121 CN2212220Y (en) | 1994-06-29 | 1994-06-29 | Passive counting sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94216121 CN2212220Y (en) | 1994-06-29 | 1994-06-29 | Passive counting sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2212220Y true CN2212220Y (en) | 1995-11-08 |
Family
ID=33831919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94216121 Expired - Fee Related CN2212220Y (en) | 1994-06-29 | 1994-06-29 | Passive counting sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2212220Y (en) |
-
1994
- 1994-06-29 CN CN 94216121 patent/CN2212220Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |