CN203274830U - Water meter indicating device with high resolution - Google Patents
Water meter indicating device with high resolution Download PDFInfo
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- CN203274830U CN203274830U CN 201320316921 CN201320316921U CN203274830U CN 203274830 U CN203274830 U CN 203274830U CN 201320316921 CN201320316921 CN 201320316921 CN 201320316921 U CN201320316921 U CN 201320316921U CN 203274830 U CN203274830 U CN 203274830U
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- water meter
- value
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- indicating device
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Abstract
The utility model relates to a water meter indicating device with high resolution. The water meter indicating device comprises double-scale discs. Each double-scale disc comprises a fixed dial and a rotating dial, and each rotating dial is connected with a rotating gear. Each fixed dial is provided with main scales or assistant scales in the peripheral direction, correspondingly, the rotating dial of the same double-scale disc is provided with assistant scales or main scales, and the marking directions of the main scales and the assistant scales of the same double-scale disc are the same. The central angle alpha of the assistant scales meets the requirement that the alpha=1/M360 degrees (N-1), wherein the M is the evenly divided scale value of the main scales, and the N is the evenly divided scale value of the assistant scales. Moreover, the minimum scale value A of the assistant scales is arranged on the blank portion corresponding to the assistant scales, and the A is a numerical value which is obtained by the way that the minimum scale value of the main scales is divided by the N. By means of the water meter indicating device with the high resolution, a water meter can be verified within a smaller scale range, verification time and water consumption are reduced, and verifying efficiency is improved.
Description
Technical field
The utility model relates to the water meter field, relates in particular to a kind of high-resolution water meter indicating device.
Background technology
Water meter is the instrument of measuring discharge, utilize the direct mechanical motion process of removable wall volumetric measurement chamber or flow rate of water flow to be used for the current volume of Flow through water supply pipe to impeller (rotary wind type or spiral type), be arranged on water pipe during use, when the user discharged water, on table, pointer or character wheel rotated and to point out the water yield passed through.
Traditional mechanical water meter outside in is divided into housing and the large part of inner core two, wherein inner core comprises metering mechanism and counting mechanism, metering mechanism comprises impeller box (or rectifier), impeller, gearcase etc., and counting mechanism comprises train wheel bridge, lower plate, supporting plate, gear set, index dial, pointer, circle pointer and screw etc.Central gear on impeller shaft is meshed with first gear in gear set, the front three gear of gear set is speed gear, play chronotropic action, from the driving wheel of the 3rd gear, until position, end gear only, play count action, be called counting gear, between the gear of the two tooth pins that it is adjacent, its velocity ratio is 10:1, consists of thus continuous decade mode.During water meter work, current pass through water meter, the drive impeller rotation, the flow velocity of current is directly proportional to the rotating speed of impeller, therefore the rotating speed of impeller also is directly proportional to flow, be connected with counting mechanism by the linkage part on impeller shaft, the revolution of counting mechanism accumulation impeller, thereby in the water yield of scale disc recording by water meter.
The gear set of general nominal bore 15-50mm water meter needs 17 gears, and the gear set of nominal bore 80-150mm rotor water gauge needs 18 gears, on dial, gear corresponding to low level indicating value circles, a high gear corresponding to indicating value turned for 1/10th weeks, need several indicating values just to need several such gears, therefore when needing to improve the pointing accuracy of water meter, when namely increasing in indicating value the figure place after radix point, the corresponding number that also needs to increase gear, the water meter core arrangement can be tending towards complicated like this, also can be restricted to the size of water meter.The lattice of scale need to satisfy when calibrating to the requirement of resolution in the same time, accurate number when the minimum division value of general water meter should satisfy calibrating be not less than 0.5%(each time reading allow to be no more than the permission reading error of 1/2 minimum division value), and minimum flow calibrating required time should not surpass 1.5 hours, and the minimum main scale division value of existing water meter is 0.0001m
3, still exist water consumption in when calibrating larger, the problem such as the time is longer, and efficient is not high.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of high high-resolution water meter indicating device of efficient of examining and determine for prior art.
The utility model solves the problems of the technologies described above the technical scheme that adopts: a kind of high-resolution water meter indicating device, comprise the conversion gear and the dial plate that is arranged on the water meter surface that are arranged on water meter inside, be provided with to show the index dial of water consumption on described dial plate, described index dial comprises the pointer scale dish, it is characterized in that: described index dial also comprises double dial, each described double dial comprises fixedly scale and rotation scale, and wherein said rotation scale is connected with described conversion gear; By circumferencial direction, master calibration or secondary scale are set on described fixedly scale, accordingly, on the rotation scale of same described double dial, secondary scale or master calibration are set, and the master calibration on same described double dial are consistent with secondary scale mark direction; The shared central angle alpha of described secondary scale satisfies α=1/M360 ° (N-1), wherein M is the evenly divided value of described master calibration, N is the evenly divided value of secondary scale, and the minimum scale value A of described secondary scale is set in blank space corresponding to described secondary scale, and A is that the minimum scale value of described master calibration is divided by the numerical value of N.
Indicating value display device on described dial plate can have multiple set-up mode, as preferably, also be provided with digit wheel on described dial plate, and described digit wheel is used for demonstration more than or equal to 1 indicating value, and described index dial is used to refer to the indicating value less than 1, and the indicating mode that digit wheel combines with index dial can make this water meter indicating device clear reading, check meter conveniently, the indicating value that only need read on digit wheel during daily calculating water rate gets final product, and calibrating can be used index dial during water meter, and is very convenient.
Place, the serial number of described secondary scale " 0 " position is provided with mark, as preferably, the described direction of arrow that is labeled as so not only can be distinguished major and minor scale easily towards the pointer of described master calibration, and useful pointer is indicated the indicating value on master calibration, makes the indicating value of double dial read convenient.
As preferably, described double dial comprise showing less than 0.01 and greater than 0.0001 indicating value * 0.001 dish and being used for show less than 0.0001 indicating value * 0.0001 dish, the indicating accuracy of described * 0.001 dish and described * 0.0001 dish indication is improved, can effectively improve the resolution of water meter indicating device.
Further, in described * 0.001 dish, M is that 10, N is less than arbitrary natural number of 10 greater than 5; Further again, N is 10, and A is 1 * 10
-4, can make the indicating value of described * 0.001 dish be accurate to after radix point four.
Further, in described * 0.0001 dish, M is that 20, N is less than arbitrary natural number of 20 greater than 5; Further again, N is 20, and A is 2.5 * 10
-6, can make the indicating value of described * 0.0001 dish be accurate to after radix point five.
compared with prior art, the utility model has the advantage of: on the dial plate of water meter, double dial is set, be provided with master calibration and the secondary scale of mark in the same way on double dial, and the shared central angle alpha=1/M360 of secondary scale ° (N-1), minimum scale value A at the secondary scale of blank space mark corresponding to secondary scale, indicating value when reading the indicating value on double dial on master calibration adds that master calibration and the numerical value on scale mark that secondary scale aligns multiply by the value of A, indicating value degree of accuracy on double dial is improved, namely under the prerequisite that does not increase the gear set number of gears, improved the resolution of water meter indicating device, therefore can examine and determine water meter in less meter full scale, calibrating time and water consumption have been reduced, improved calibrating efficient.Quantity is taken turns the indicating mode that combines with index dial simultaneously, makes improve the situation of water meter calibration efficient by improving water meter indicating device resolution, does not affect the daily work of checking meter, and makes water meter calibration and routine use all very convenient, efficient.
Description of drawings
Fig. 1 is the cut-open view of water meter indicating device in the utility model embodiment 1;
Fig. 2 is the schematic diagram of dial plate in the utility model embodiment 1;
Fig. 3 is the schematic diagram of dial plate in the utility model embodiment 2.
Embodiment
Embodiment is described in further detail the utility model below in conjunction with accompanying drawing.
Embodiment 1:
As depicted in figs. 1 and 2, a kind of high-resolution water meter indicating device, comprise the gear set that is arranged on the inner train wheel bridge 6 of water meter and 7 of lower plates and the dial plate 2 that is arranged on the water meter surface, gear set comprises speed gear and conversion gear 14, be provided with to show digit wheel 9 and the index dial that is used to refer to less than 1 indicating value more than or equal to 1 indicating value on dial plate 2, index dial comprises two pointer scale dishes: * 0.1 dish 10, * 11, two double dials of 0.01 dish: * 0.001 dish 12, * 0.0001 dish 13.Each double dial comprises fixedly scale 4 and rotation scale 3, wherein rotates scale 3 and is connected with conversion gear 14, fixedly by circumferencial direction, master calibration 121 is set on scale 4,131, rotate on scale 3 secondary scale 122,132 is set, and master calibration 121,131 is consistent with secondary scale 122,132 label orientation.The place, serial number " 0 " position of secondary scale 122,132 is provided with the direction of arrow towards the pointer 124,134 of master calibration, so not only can distinguish easily major and minor scale, and available pointer 124,134 is indicated master calibration 121, indicating value on 131 makes the indicating value of double dial read convenient.
Wherein * 0.001 dish 12 master calibration 121 evenly divided value M are that the master calibration 121 of 10, namely * 0.001 dish 12 is that 10 grades are divided master calibration, divide equally 360 ° of central angles, on fixing scale 4 continued labelling serial number 0,1,2,3 ... 8,9; The secondary scale 122 evenly divided value N of * 0.001 dish 12 are 10, the secondary scale 122 of namely * 0.001 dish 12 is that 10 grades are divided secondary scale, divide equally central angle alpha, ° (10-1)=36, α=1/10360 ° * 9=324 °, rotate the corresponding fan-shaped place's continued labelling serial number 0,1,2,3 of α on scale 3 ... 8,9,0, the blank space of rotating scale 3 arranges the minimum scale value A123 of secondary scale, A123 is that the difference of master calibration two adjacent scales is divided by N, be the minimum scale value of master calibration 121 divided by the numerical value of N, A123=0.001/10=1 * 10 herein
-4
* 0.0001 dish 13 master calibration 131 evenly divided value M are that the master calibration 131 of 20, namely * 0.0001 dish 13 is that 20 grades are divided master calibration, divide equally 360 ° of central angles, on fixing scale 4 interval marking serial number 0,1,2,3 ... 8,9, the secondary scale 132 evenly divided value N of * 0.0001 dish 13 are 20, the secondary scale 132 of namely * 0.0001 dish 13 is that 20 grades are divided secondary scale, divide equally central angle alpha, ° (20-1)=18, α=1/20360 ° * 19=342 °, rotating on scale 3 α corresponding fan-shaped place interval marking serial number 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 0, the blank space of rotating scale 3 arranges the minimum scale value A133 of secondary scale 132, A133 is that the difference of master calibration 131 2 adjacent scales is divided by N, be that the minimum scale value of master calibration 131 is divided by the numerical value of N, A133=0.0001/2/20=2.5 * 10 herein ﹠lt, sup TranNum="81" ﹠gt,-6 ﹠lt, /sup ﹠gt,
The measuring mechanism 8 driven gear groups 1 that during the water meter running, current pass through in water meter are rotated, then rotate scale 3, pointer 5, digit wheel 9 rotations by conversion gear 14 drives in gear set 1, thereby discharge are converted to the numerical value that shows on index dial.During reading, first read indicating value on digit wheel 9 as the numerical value of zero front, then read successively * 0.1 dish 10, * 0.01 dish 11, * 0.001 dish 12, * indicating value of 0.0001 dish on 13 be as the numerical value of zero back, read * 0.001 the dish 12, * 0.0001 the dish 13 o'clock, the secondary scale sequence of major and minor scale scale mark alignment place number multiply by corresponding A123,133 values, and then add secondary scale 122,132 pointers 124,134 front master calibrations 121, indicating value on 131, in Fig. 2, the indicating value of * 0.001 dish 12=1 * 0.001+1 * 1 * 10
-4=0.0011, and * 0.0001 dish 13 indicating value=1 * 0.0001+4 * 2.5 * 10
-6=0.00011, so the reading in Fig. 2 is 0.00111, compared accurately one with original reading, improved the resolution of water meter indicating device, can increase work efficiency in water meter calibration.
Embodiment 2:
As shown in Figure 3, as different from Example 1, in embodiment 2, in * 0.001 dish 12 and * 0.0001 dish 13, master calibration 121,131 is arranged on and rotates on scale 3, and secondary scale 122,132 are arranged on fixedly on scale 4, and corresponding A123, the blank space of the fixedly rotating disk 4 that 133 values arrange.
Read * 0.001 the dish 12, * 0.0001 the dish 13 o'clock, the secondary scale 122 of major and minor scale scale mark alignment place, 132 serial numbers multiply by corresponding A123,133 values, and then add secondary tuning drive gear 124,134 rear master calibrations 121, indicating value on 131, in Fig. 3, the indicating value of * 0.001 dish 12=1 * 0.001+3 * 1 * 10
-4=0.0013, and * 0.0001 dish 13 indicating value=3 * 0.0001+4 * 2.5 * 10
-6=0.00031, so the reading in Fig. 3 is 0.00131, compared accurately one with original reading, improved the resolution of water meter indicating device.
Claims (9)
1. high-resolution water meter indicating device, comprise the conversion gear (14) that is arranged on water meter inside and the dial plate (2) that is arranged on the water meter surface, be provided with to show the index dial of water consumption on described dial plate (2), described index dial comprises the pointer scale dish, it is characterized in that: described index dial also comprises double dial, each described double dial comprises fixedly scale (4) and rotation scale (3), and wherein said rotation scale (3) is connected with described conversion gear (14); Described fixedly scale (4) is upper arranges master calibration (121 by circumferencial direction, 131) or secondary scale (122,132), accordingly, on the described rotation scale (3) of same described double dial, secondary scale (122,132) or master calibration (121 are set, 131), and the described master calibration (121,131) on same described double dial is consistent with described secondary scale (122,132) label orientation; Described secondary scale (122,132) shared central angle alpha satisfies α=1/M360 ° (N-1), wherein M is described master calibration (121,131) evenly divided value, N is secondary scale (122,132) evenly divided value, and at described secondary scale (122,132) corresponding blank space arranges described secondary scale (122,132) minimum scale value A(123,133), and A(123,133) be that the minimum scale value of described master calibration (121,131) is divided by the numerical value of N.
2. high-resolution water meter indicating device according to claim 1, it is characterized in that: also be provided with digit wheel (9) on described dial plate (2), and described digit wheel (9) is used for demonstration more than or equal to 1 indicating value, and described index dial is used for showing the indicating value less than 1.
3. high-resolution water meter indicating device according to claim 1 and 2 is characterized in that: the place, serial number " 0 " position of described secondary scale (122,132) is provided with mark (124,134).
4. high-resolution water meter indicating device according to claim 3, it is characterized in that: described mark (124,134) is that the direction of arrow is towards the pointer of described master calibration.
5. high-resolution water meter indicating device according to claim 4 is characterized in that: described double dial comprise showing less than 0.01 and greater than 0.0001 indicating value * 0.001 dish (12) and being used for show less than 0.0001 indicating value * 0.0001 coil (13).
6. high-resolution water meter indicating device according to claim 5 is characterized in that: in described * 0.001 dish (12), M is that 10, N is less than arbitrary natural number of 10 greater than 5.
7. high-resolution water meter indicating device according to claim 5 is characterized in that: in described * 0.0001 dish (13), M is that 20, N is less than arbitrary natural number of 20 greater than 5.
8. high-resolution water meter indicating device according to claim 6, it is characterized in that: N is 10, A (123) is 1 * 10
-4
9. high-resolution water meter indicating device according to claim 7, it is characterized in that: N is 20, A (133) is 2.5 * 10
-6
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320316921 CN203274830U (en) | 2013-06-03 | 2013-06-03 | Water meter indicating device with high resolution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320316921 CN203274830U (en) | 2013-06-03 | 2013-06-03 | Water meter indicating device with high resolution |
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| Publication Number | Publication Date |
|---|---|
| CN203274830U true CN203274830U (en) | 2013-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320316921 Expired - Fee Related CN203274830U (en) | 2013-06-03 | 2013-06-03 | Water meter indicating device with high resolution |
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| Country | Link |
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| CN (1) | CN203274830U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953858A (en) * | 2016-07-19 | 2016-09-21 | 天津市炳华节能技术有限公司 | Novel mechanical remote water meter |
| CN110579242A (en) * | 2019-08-31 | 2019-12-17 | 徐顺球 | Instrument and meter capable of clearly reading |
-
2013
- 2013-06-03 CN CN 201320316921 patent/CN203274830U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953858A (en) * | 2016-07-19 | 2016-09-21 | 天津市炳华节能技术有限公司 | Novel mechanical remote water meter |
| CN110579242A (en) * | 2019-08-31 | 2019-12-17 | 徐顺球 | Instrument and meter capable of clearly reading |
| CN110579242B (en) * | 2019-08-31 | 2021-04-27 | 广州邦贝机电设备有限公司 | Instrument and meter capable of clearly reading |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20160603 |