CN105427468A - Photoelectric direct-reading remote smart IC (integrated circuit) card water meter - Google Patents
Photoelectric direct-reading remote smart IC (integrated circuit) card water meter Download PDFInfo
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- CN105427468A CN105427468A CN201511002266.0A CN201511002266A CN105427468A CN 105427468 A CN105427468 A CN 105427468A CN 201511002266 A CN201511002266 A CN 201511002266A CN 105427468 A CN105427468 A CN 105427468A
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- Prior art keywords
- valve
- water meter
- resistance
- circuit
- card water
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F15/00—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity
- G07F15/06—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity with means for prepaying basic charges, e.g. rent for meters
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The invention discloses a photoelectric direct-reading remote smart IC (integrated circuit) card water meter. The photoelectric direct-reading remote smart IC card water meter comprises a valve and a valve driving circuit, wherein the valve comprises a valve body (1), a ball valve switch (2) fixedly connected onto the valve body (1), a spherical valve core (3), a valve core sealing gasket (4), a valve rod (5) and a sealing device; the valve driving circuit comprises a low-pass filtering circuit (8), a linear amplification circuit (9), a reference voltage generating circuit (10), a reducer (11) and a driving motor (12), and the valve rod (5) is fixedly mounted on an output shaft of the driving motor (12). Operation of the valve driving motor is controlled by the reducer, so that rotation of the ball valve switch is realized, and the water meter is simple in structural design and convenient to use. The valve is made of a polyethylene material and adopts a multi-layer sealing structure, accordingly, the defects of high probability of corrosion, loosening, water leakage and the like of the conventional valve are overcome, the sealing performance, the corrosion resistance and the stability are good, the structure is firm, and mounting and dismounting are simple.
Description
Technical field
The present invention relates to a kind of photoelectric direct-reading water meter, particularly relate to a kind of photo-electronic directly reading remote transmission intelligent IC-card water meter.
Background technology
Photoelectric direct-reading water meter is the outer rim printing specific markers of the character wheel of counter printing 0-9 position at common water meter, at its peripheral fixed light electric transducer and interlock circuit.During externally fed meter reading, judge that specific markers " has " and the state of "None" by photoelectric sensor.Photoelectric direct reading remote transmission water meter passes through character wheel founding mathematical models, calculate through combination, therefrom obtain uniquely correct solution, and then specifically mark according to mathematical law printing on the relevant position of character wheel 0-9, around it, according to mathematical law, fixed light electric transducer is installed again, so just a mathematical problem is realized by electronic circuit method.Consider the algorithm of various fault-tolerant, error correction simultaneously, just can draw uniquely correct solution---the unique data namely on character wheel.The direct-reading gage adopted at present in this way mainly contains photoelectricity correlation (transmission) formula and photo-electric reflection type two kinds, and main difference is the difference of physical construction and mathematical algorithm.Photoelectricity correlation (transmission) formula technology can only be applied to dry-type meter, and photo-electric reflection type technology not only can be applied to dry-type meter, and can be applied to liquid-seal water meter.
IC-card water meter a kind ofly utilizes modern microelectronic technology, Modern Transducer Technology, intellective IC card technology to measure water consumption and carry out reportedly passing with water number and the new water meter of settlement bargain.It is except recording water consumption and except electronical display, automatically can also control according to agreement to water consumption, and the water rate automatically completing stepped water pricing calculates, and can carry out use water number according to storage simultaneously.Because its data transmission and settlement of transactions are undertaken by IC-card, thus can realize being visited the transformation that counting cost by gas meter goes to business office to pay dues to user oneself by staff.
Ball valve sealing mainly realizes by the rubber band between valve rod and valve body, rubber band when Long Term Contact strong acid, highly basic or organic solvent, be easy to be subject to medium corrosion and cause rubber band aging, get loose, and then cause ball valve to be revealed; Traditional ball valve critical piece adopts steel or common plastic material manufacture, thermal insulation and the insulating property of steel material are poor, the case that user is in use electrically shocked or scalds is too numerous to mention, and common plastics type ball valve have easy to wear, perishable, have the shortcomings such as peculiar smell.
In addition, conventional water meter valve driving circuit complex structure, realizes the high and less stable of threshold.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of photo-electronic directly reading remote transmission intelligent IC-card water meter, valve seal performance is good, corrosion-resistant, good stability, sound construction, and valve driving circuit control accuracy is high, reliable and stable.
The object of the invention is to be achieved through the following technical solutions: photo-electronic directly reading remote transmission intelligent IC-card water meter, comprise valve body and valve driving circuit, described valve body comprises valve body, be fixedly connected on the ball valve switch on valve body, spherical valve core, seal spool pad, valve rod and packoff, seal spool pad is placed between spherical valve core and valve body, seal spool cushion cover is connected on the contact position of spherical valve core and valve rod, packoff comprises O-ring seal and airtight and watertight padding layer, packoff is between valve body and valve rod and be socketed on valve rod, O-ring seal is arranged on the side near spherical valve core,
Described valve driving circuit comprises low-pass filter circuit, linear amplifier circuit, reference voltage generating circuit, speed reduction unit and drive motor, described low-pass filter circuit comprises the first resistance R1 and direct earth capacitance C1, one end of first resistance R1 is connected with pulse width modulation (PWM) signal, and the other end is connected with the inverting input of linear amplifier circuit; Described linear amplifier circuit comprises operational amplifier A MP1, the first slide rheostat VR1, the second resistance R2 and the 3rd resistance R3, one fixed end of the first slide rheostat VR1 connects the first resistance R1, another fixed end ground connection, the inverting input of the second resistance R2 concatenation operation amplifier AMP1 is passed through in the moved end of the first slide rheostat VR1, the in-phase input end of operational amplifier A MP1 connects reference voltage generating circuit, and the output terminal of operational amplifier A MP1 connects drive motor by speed reduction unit;
Described valve rod is fixedly mounted on the output shaft of described drive motor.
Described O-ring seal is O RunddichtringO.
The fluid sealant that described O RunddichtringO adopts is made up of the component of following weight ratio: fluorosioloxane rubber 30 ~ 40, filling agent 15 ~ 20, silicon dioxide 5 ~ 10, methyl triethoxysilane 0.5 ~ 2.
The component titania of the weight ratios such as described filling agent comprises and calcium oxide.
Described airtight and watertight padding layer adopts bush structure.
The output terminal of described operational amplifier A MP1 is also connected with its inverting input by the 3rd resistance R3.
Described reference voltage generating circuit comprises the second slide rheostat VR2 and the 4th resistance R4, one fixed end of the second slide rheostat VR2 connects power source voltage Vcc, the 4th resistance R4 ground connection is passed through in another fixed end, the in-phase input end of the moved end concatenation operation amplifier AMP1 of the second slide rheostat VR2.
The invention has the beneficial effects as follows:
1) by the running of speed reduction unit by-pass valve control drive motor, realize the rotation of ball valve switch with this, structural design is simple, easy to use.
2) valve adopts polythene material and multi-layer sealing structure, overcome existing valve perishable, loosen and the defect such as to leak, provide a kind of good seal performance, corrosion-resistant, good stability, sound construction and the simple polyethylene ball valve of installing/dismounting.The advantage of O RunddichtringO is all characteristics with organic silicon rubber.
3) valve driving circuit low-pass filter circuit is set can noise jamming in effectively filtering control signal, water meter valve control accuracy can be improved.
4) reference voltage of the control signal of the linear amplifier circuit anti-phase input of valve driving circuit and homophase input is all adjustable, improves versatility and the scope of application of valve control circuit.
Accompanying drawing explanation
Fig. 1 is valve body structural representation of the present invention;
Fig. 2 is valve driving circuit schematic diagram of the present invention;
In figure, 1-valve body, 2-ball valve switch, 3-spherical valve core, 4-seal spool pad, 5-valve rod, 6-O-ring seal, 7-airtight and watertight padding layer, 8-low-pass filter circuit, 9-linear amplifier circuit, 10-reference voltage generating circuit, 11-speed reduction unit, 12-drive motor.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail, but protection scope of the present invention is not limited to the following stated.
Photo-electronic directly reading remote transmission intelligent IC-card water meter, comprise valve body and valve driving circuit, as shown in Figure 1, described valve body comprises valve body 1, be fixedly connected on the ball valve switch 2 on valve body 1, spherical valve core 3, seal spool pad 4, valve rod 5 and packoff, seal spool pad 4 is placed between spherical valve core 3 and valve body 1, seal spool pad 4 is socketed in the contact position of spherical valve core 3 and valve rod 5, packoff comprises O-ring seal 6 and airtight and watertight padding layer 7, packoff is between valve body 1 and valve rod 5 and be socketed on valve rod 5, O-ring seal 6 is arranged on the side near spherical valve core 3.
Described O-ring seal 6 is O RunddichtringO.The fluid sealant that described O RunddichtringO adopts is made up of the component of following weight ratio: fluorosioloxane rubber 30 ~ 40, filling agent 15 ~ 20, silicon dioxide 5 ~ 10, methyl triethoxysilane 0.5 ~ 2.The component titania of the weight ratios such as described filling agent comprises and calcium oxide.
Described airtight and watertight padding layer 7 adopts bush structure.
As shown in Figure 2, described valve driving circuit comprises low-pass filter circuit 8, linear amplifier circuit 9, reference voltage generating circuit 10, speed reduction unit 11 and drive motor 12, described low-pass filter circuit 8 comprises the first resistance R1 and direct earth capacitance C1, one end of first resistance R1 is connected with pulse width modulation (PWM) signal, and the other end is connected with the inverting input of linear amplifier circuit 9; Described linear amplifier circuit 9 comprises operational amplifier A MP1, the first slide rheostat VR1, the second resistance R2 and the 3rd resistance R3, one fixed end of the first slide rheostat VR1 connects the first resistance R1, another fixed end ground connection, the inverting input of the second resistance R2 concatenation operation amplifier AMP1 is passed through in the moved end of the first slide rheostat VR1, the output terminal of the in-phase input end connection reference voltage generating circuit 10, operational amplifier A MP1 of operational amplifier A MP1 connects drive motor 12 by speed reduction unit 11;
Described valve rod 5 is fixedly mounted on the output shaft of described drive motor 2.
The output terminal of described operational amplifier A MP1 is also connected with its inverting input by the 3rd resistance R3.
Described reference voltage generating circuit 10 comprises the second slide rheostat VR2 and the 4th resistance R4, one fixed end of the second slide rheostat VR2 connects power source voltage Vcc, the 4th resistance R4 ground connection is passed through in another fixed end, the in-phase input end of the moved end concatenation operation amplifier AMP1 of the second slide rheostat VR2.
The above is only the preferred embodiment of the present invention, be to be understood that the present invention is not limited to the form disclosed by this paper, should not regard the eliminating to other embodiments as, and can be used for other combinations various, amendment and environment, and can in contemplated scope described herein, changed by the technology of above-mentioned instruction or association area or knowledge.And the change that those skilled in the art carry out and change do not depart from the spirit and scope of the present invention, then all should in the protection domain of claims of the present invention.
Claims (7)
1. photo-electronic directly reading remote transmission intelligent IC-card water meter, it is characterized in that: comprise valve body and valve driving circuit, described valve body comprises valve body (1), be fixedly connected on the ball valve switch (2) on valve body (1), spherical valve core (3), seal spool pad (4), valve rod (5) and packoff, seal spool pad (4) is placed between spherical valve core (3) and valve body (1), seal spool pad (4) is socketed in the contact position of spherical valve core (3) and valve rod (5), packoff comprises O-ring seal (6) and airtight and watertight padding layer (7), packoff to be positioned between valve body (1) and valve rod (5) and to be socketed on valve rod (5), O-ring seal (6) is arranged on the side near spherical valve core (3),
Described valve driving circuit comprises low-pass filter circuit (8), linear amplifier circuit (9), reference voltage generating circuit (10), speed reduction unit (11) and drive motor (12), described low-pass filter circuit (8) comprises the first resistance R1 and direct earth capacitance C1, one end of first resistance R1 is connected with pulse width modulation (PWM) signal, and the other end is connected with the inverting input of linear amplifier circuit (9); Described linear amplifier circuit (9) comprises operational amplifier A MP1, the first slide rheostat VR1, the second resistance R2 and the 3rd resistance R3, one fixed end of the first slide rheostat VR1 connects the first resistance R1, another fixed end ground connection, the inverting input of the second resistance R2 concatenation operation amplifier AMP1 is passed through in the moved end of the first slide rheostat VR1, the in-phase input end of operational amplifier A MP1 connects reference voltage generating circuit (10), and the output terminal of operational amplifier A MP1 connects drive motor (12) by speed reduction unit (11);
Described valve rod (5) is fixedly mounted on the output shaft of described drive motor (2).
2. photo-electronic directly reading remote transmission intelligent IC-card water meter according to claim 1, is characterized in that: described O-ring seal (6) is O RunddichtringO.
3. photo-electronic directly reading remote transmission intelligent IC-card water meter according to claim 2, is characterized in that: the fluid sealant that described O RunddichtringO adopts is made up of the component of following weight ratio: fluorosioloxane rubber 30 ~ 40, filling agent 15 ~ 20, silicon dioxide 5 ~ 10, methyl triethoxysilane 0.5 ~ 2.
4. photo-electronic directly reading remote transmission intelligent IC-card water meter according to claim 3, is characterized in that: described filling agent such as to comprise at component titania and the calcium oxide of weight ratio.
5. photo-electronic directly reading remote transmission intelligent IC-card water meter according to claim 1, is characterized in that: described airtight and watertight padding layer (7) adopts bush structure.
6. photo-electronic directly reading remote transmission intelligent IC-card water meter according to claim 1, is characterized in that: the output terminal of described operational amplifier A MP1 is also connected with its inverting input by the 3rd resistance R3.
7. photo-electronic directly reading remote transmission intelligent IC-card water meter according to claim 1, it is characterized in that: described reference voltage generating circuit (10) comprises the second slide rheostat VR2 and the 4th resistance R4, one fixed end of the second slide rheostat VR2 connects power source voltage Vcc, the 4th resistance R4 ground connection is passed through in another fixed end, the in-phase input end of the moved end concatenation operation amplifier AMP1 of the second slide rheostat VR2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511002266.0A CN105427468A (en) | 2015-12-29 | 2015-12-29 | Photoelectric direct-reading remote smart IC (integrated circuit) card water meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511002266.0A CN105427468A (en) | 2015-12-29 | 2015-12-29 | Photoelectric direct-reading remote smart IC (integrated circuit) card water meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105427468A true CN105427468A (en) | 2016-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511002266.0A Pending CN105427468A (en) | 2015-12-29 | 2015-12-29 | Photoelectric direct-reading remote smart IC (integrated circuit) card water meter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185540A (en) * | 2018-11-01 | 2019-01-11 | 宁波威森搏乐机械制造有限公司 | A kind of easy to operate corrosion-resistant Solenoid ball valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0833090A1 (en) * | 1996-09-25 | 1998-04-01 | Ralf Krause | Ball valve |
| CN101149594A (en) * | 2006-09-22 | 2008-03-26 | 广东万和集团有限公司 | Gas ratio valve control circuit |
| CN201368257Y (en) * | 2009-01-09 | 2009-12-23 | 浙江沃孚阀门有限公司 | Double-sealing ball valve |
| CN201576326U (en) * | 2010-01-15 | 2010-09-08 | 北京农业智能装备技术研究中心 | IC card prepayment water meter |
| CN101993679A (en) * | 2009-08-28 | 2011-03-30 | 曹年生 | Sealant |
| CN102011877A (en) * | 2010-12-10 | 2011-04-13 | 陈沛 | Novel down-mounting ball valve |
-
2015
- 2015-12-29 CN CN201511002266.0A patent/CN105427468A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0833090A1 (en) * | 1996-09-25 | 1998-04-01 | Ralf Krause | Ball valve |
| CN101149594A (en) * | 2006-09-22 | 2008-03-26 | 广东万和集团有限公司 | Gas ratio valve control circuit |
| CN201368257Y (en) * | 2009-01-09 | 2009-12-23 | 浙江沃孚阀门有限公司 | Double-sealing ball valve |
| CN101993679A (en) * | 2009-08-28 | 2011-03-30 | 曹年生 | Sealant |
| CN201576326U (en) * | 2010-01-15 | 2010-09-08 | 北京农业智能装备技术研究中心 | IC card prepayment water meter |
| CN102011877A (en) * | 2010-12-10 | 2011-04-13 | 陈沛 | Novel down-mounting ball valve |
Non-Patent Citations (1)
| Title |
|---|
| 贾立新: "信号放大电路的设计", 《电子系统设计与实践》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185540A (en) * | 2018-11-01 | 2019-01-11 | 宁波威森搏乐机械制造有限公司 | A kind of easy to operate corrosion-resistant Solenoid ball valve |
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Application publication date: 20160323 |
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