CN2530249Y - Remote transmitting gas meter without changing original structure of basic meter - Google Patents
Remote transmitting gas meter without changing original structure of basic meter Download PDFInfo
- Publication number
- CN2530249Y CN2530249Y CN 02222000 CN02222000U CN2530249Y CN 2530249 Y CN2530249 Y CN 2530249Y CN 02222000 CN02222000 CN 02222000 CN 02222000 U CN02222000 U CN 02222000U CN 2530249 Y CN2530249 Y CN 2530249Y
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- magnetic
- gas meter
- gear
- remote transmitting
- permanent magnet
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Abstract
The utility model discloses a remote transmitting gas meter without change of the prior structure of the base meter which pertains to a flow meter that can output the electric signal about measurement of the total gas flow volume. On the basis of revolver counter of the common fuel gas meter (or gasometer), a group of sensor excitation permanent magnet transmission gears are increased, so that the pick-up point of the sensor signal can be transferred to a proper vacancy between the fuel gas meter cavity metal hull and the plastic outer mantle of the counter; and a magnetic /electromagnetic shield magnetic sensory component is mounted. Compared with prior art, the utility model overcomes the defect that the prior fuel gas base meter structure without change is hard to conduct effective magnetic /electromagnetic shield. Without change of the prior structure of the base meter, the magnetic /electromagnetic shield magnetic sensory component is mounted to realize the reliable remote transmitting gas meter and IC card fuel gas meter that resist the magnetic /electromagnetic interference.
Description
(1), technical field: the utility model relates to the device of metering gas volume flow, particularly can export the remote transmitting gas meter and the IC-card gas meter, flow meter of electric signal.
(2), background technology: remote transmitting gas meter is the gas meter, flow meter with output and combustion gas (coal gas, rock gas etc.) corresponding electric signal function of volume flow.Existing remote transmitting gas meter all is that the general gas table with band runner counter is a base table usually, on certain tumbler of runner counter or gear mechanism, permanent magnet is installed, fixing tongue tube or other kind magneto-dependent sensors in its vicinity issues out electric impulse signal at the permanent magnet magnetic field action, pulse number equates with the rotation revolution, thereby with the combustion gas volume flow definite corresponding relation is arranged, realize the function of the electric signal of remote transmitting gas meter output metering gas volume flow.It not only can be used for remote auto meter reading system, also can be used to form the IC-card gas meter, flow meter.
But the magnetic sensing member of domestic existing remote transmitting gas meter (comprising: Magnetic Sensor, sensor excitation permanent magnet) does not adopt magnetic/electromagnetic screen usually, and antimagnetic/electromagnetic interference capability is very poor.Because the excitation permanent magnet is installed on runner counter or the gear drive tumbler, and be difficult to separately magnetic sensing member be implemented effectively shielding, therefore, the magnetic/electromagnetic screen that realize the magnetic sensing member not changing gas meter, flow meter base table original structure and good shielding is arranged is difficult.
The purpose of this utility model is: provide a kind of and need not change original structures such as gas meter, flow meter base table air chamber metal shell and runner counter, just can carry out the remote transmitting gas meter of good magnetic/electromagnetic screen to magnetic sensing member.
(3), summary of the invention: technical solution of the present utility model is: the transmission gear that increases the special use of one group of sensor excitation permanent magnet, the sensor signal pickup point is transferred near the runner counter space, magnetic sensing member is carried out effective magnetic/electromagnetic screen with magnetic/electromagnetic shielding component.At first, according to the concrete condition of space structure between gas meter, flow meter air chamber metal shell and the runner counter plastic housing, consider that magnetic/electromagnetic screen magnetic sensing member is fit to the position of installing; Then, the corresponding relation of electric signal as requested and combustion gas volume flow is determined the engagement system of newly-increased transmission gear and counter gear and is increased the gear technique parameter newly, and the position dimension of definite sensor installation excitation permanent magnet; Carry out magnetic/electromagnetic screen magnetic sensing member installation structure size design at last, implement in view of the above just can reach the purpose of this utility model.
(4), description of drawings: the utility model can further specify by following examples.Fig. 1 is the general gas epiphase pass part synoptic diagram as the remote transmitting gas meter base table; Fig. 2 is the utility model remote transmitting gas meter embodiment relevant portion synoptic diagram.
(5) embodiment: as shown in Figure 1 and Figure 2, the utility model comprises: certain gear 3 in air chamber metal shell 1, runner counter 2, the runner counter gear gear train, the plastic housing 4 of runner counter.Fig. 2 is the utility model remote transmitting gas meter embodiment relevant portion synoptic diagram, and increasing part newly has: the special-purpose transmission gear 5 of the sensor excitation permanent magnet that is meshed with gear 3, permanent magnet 6, Magnetic Sensor 7, transducing signal treatment circuit 8, magnetic/electromagnetic shielding component 9, signal cable 10.
If sensor installation excitation permanent magnet on certain tumbler of runner counter gear gear train, Magnetic Sensor must be fixed in its vicinity, it almost is impossible separately this part magnetic sensing member being carried out magnetic/electromagnetic screen, because space therebetween is very little, can't adopt the good shielding construction of shield effectiveness at all; If the runner counter is shielding together also, the radome size is unavoidable to become big, and the space within plastic housing can hold any more yet, can't realize effective magnetic/electromagnetic screen.
But, by of the engagement of newly-increased gear 5 with gear 3, the sensor signal pickup point relevant with the metering of combustion gas volume flow is delivered to illustrated space, just can be with the key component in 9 pairs of magnetic sensings of magnetic/electromagnetic shielding component member---permanent magnet 6, Magnetic Sensor 7 and transducing signal treatment circuit 8 carry out effective magnetic/electromagnetic screen.
The axis of the axis of illustrated newly-increased gear 5 and gear 3 is perpendicular, by setting up gear 5, the rotation of gear 3 has been realized the transmission of rotating shaft half-twist that is:; According to circumstances also can take the rotating shaft rotation transmission parallel to each other of gear 5 and gear 3, perhaps increase a plurality of gears newly and take different axial combinations.
If: the number of teeth of the gear 3 that is meshed with gear 5 is M, and the number of teeth of gear 5 is N, and the gear 3 corresponding combustion gas volume flow that rotates a circle is Q
3The gear 5 corresponding volume flow Q that rotates a circle then
5=Q
3/ (M/N)=Q
3N/M.
M=40 among the embodiment, N=9, Q
3In=6L/ week, gear 5 rotates a circle, pulse of sensor 7 outputs, so, the output gas-burning pulse volume flow equivalent Q of this remote transmitting gas meter
p=Q
5=Q
3N/M=6 * 9/40=1.35 (L/P).
Magnetic/electromagnetic shielding component 9 is multilayers, and the number of plies is according to fixed to the requirement of shield effectiveness, embodiment by size from small to large cylindrical shape and two rectangular box-like radomes repeatedly cover form, radome also can be other shape.Radome uses the sheet material of magnetic conductivity and good conductivity, and its outermost layer and air chamber metal shell 1 are electrically connected.Permanent magnet 6 and Magnetic Sensor 7 are positioned at the innermost layer radome, and transducing signal treatment circuit 8 is positioned at the outermost layer radome and gets final product, and be good as the anti-electromagnetic interference performance of circuit, also can be not interposing in the radome.
Owing to used the utility model technology, transfer to suitable room by 5 sensor signal pickup points relevant of newly-increased gear with the metering of combustion gas volume flow, make separately that shielding becomes possibility to magnetic sensing member, (30mm * 25mm * 18mm) has obtained good magnetic/effectiveness so magnetic/electromagnetic shielding component 9 is with less physical dimension.For example: one just can make tongue tube stop to take place permanent magnet signal, about Surface field intensity 400mT at 100mm place, the common remote transmitting gas meter of distance surface, the operate as normal that any position that abuts in the utility model remote transmitting gas meter surface all can not disturb sensor; Near this gas meter, flow meter, smoke exhaust ventilator, washing machine, micro-wave oven open/stop, and the electric spark electromagnetic radiation that the warm swap attaching plug produces can not cause remote transmitting gas meter output undesired signal.
Claims (9)
1, a kind of remote transmitting gas meter comprises certain gear (3) in air chamber metal shell (1), runner counter (2), the runner counter gear gear train, the plastic housing (4) of runner counter, it is characterized in that; Outside the member of general gas table, set up driving gear set (5), gear set (5) sensor excitation permanent magnet (6), Magnetic Sensor (7), transducing signal treatment circuit (8) and the magnetic/electromagnetic screen shade assembly (9) of sensor excitation permanent magnet special use; Engagement in the described driving gear set (5) is transmitted the sensor excitation permanent magnet (6) that stops in gear or its rotating shaft and is positioned on the position of magnetic/electromagnetic shielding component idle space, that suitable installation magnetic sensing member uses separately between gas meter, flow meter air chamber metal shell (1) and the counter plastic housing (4); Described sensor excitation permanent magnet (6) is installed in engagement in the special-purpose driving gear set of sensor excitation permanent magnet (5) and transmits and stop on the gear or in the rotating shaft of this gear; Described Magnetic Sensor (7) be positioned at sensor excitation permanent magnet (6) near, promptly also be positioned on the position that magnetic/electromagnetic shielding component that magnetic sensing member uses separately be fit to be installed; Described magnetic/electromagnetic shielding component (9) is repeatedly overlapped by 2～5 ascending radomes of size and combines.
2, remote transmitting gas meter according to claim 1, it is characterized in that: the special-purpose driving gear set of described sensor excitation permanent magnet (5) at first is meshed with certain gear (3) in the runner counter gear gear train, and the number of gears of gear set can be 1～3.
3, remote transmitting gas meter according to claim 1 and 2 is characterized in that: the axis of the gear that is meshed with gear (3) of the special-purpose driving gear set of sensor excitation permanent magnet (5) can be parallel to each other with the axis of gear (3), vertical or become angle less than 180 °.
4, remote transmitting gas meter according to claim 1 and 2 is characterized in that: the axis of the gear that is meshed in the described driving gear set (5) can be parallel to each other, vertical or become angle less than 180 °.
5, remote transmitting gas meter according to claim 3 is characterized in that: the axis of the gear that is meshed in the described driving gear set (5) can be parallel to each other, vertical or become angle less than 180 °.
6, remote transmitting gas meter according to claim 1 and 2, it is characterized in that: the radome of forming magnetic/electromagnetic shielding component (9) is the magnetic conduction of cylindrical shape, square box shaped or other geometric configuration and the shell cavity that conducts electricity very well, shell thickness range 0.1～3mm.
7, remote transmitting gas meter according to claim 3 is characterized in that: the radome of forming magnetic/electromagnetic shielding component (9) is the magnetic conduction of cylindrical shape, square box shaped or other geometric configuration and the shell cavity that conducts electricity very well, shell thickness range 0.1～3mm.
8, remote transmitting gas meter according to claim 4 is characterized in that: the radome of forming magnetic/electromagnetic shielding component (9) is the magnetic conduction of cylindrical shape, square box shaped or other geometric configuration and the shell cavity that conducts electricity very well, shell thickness range 0.1～3mm.
9, remote transmitting gas meter according to claim 5 is characterized in that: the radome of forming magnetic/electromagnetic shielding component (9) is the magnetic conduction of cylindrical shape, square box shaped or other geometric configuration and the shell cavity that conducts electricity very well, shell thickness range 0.1～3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02222000 CN2530249Y (en) | 2002-03-27 | 2002-03-27 | Remote transmitting gas meter without changing original structure of basic meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02222000 CN2530249Y (en) | 2002-03-27 | 2002-03-27 | Remote transmitting gas meter without changing original structure of basic meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2530249Y true CN2530249Y (en) | 2003-01-08 |
Family
ID=33699996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02222000 Expired - Fee Related CN2530249Y (en) | 2002-03-27 | 2002-03-27 | Remote transmitting gas meter without changing original structure of basic meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2530249Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487093A (en) * | 2013-09-13 | 2014-01-01 | 上海真兰仪表科技股份有限公司 | Novel sensing device for gas metering |
| CN105045127A (en) * | 2015-08-20 | 2015-11-11 | 成都弘毅天承科技有限公司 | System for reading gas meter of smart home based on Wi-Fi |
| CN105074390A (en) * | 2013-01-07 | 2015-11-18 | 萨基姆通讯能源及电信联合股份公司 | Device and method for remotely reading a meter |
| CN105608801A (en) * | 2015-12-29 | 2016-05-25 | 成都兴联宜科技有限公司 | Photoelectric direct reading teletransmission prepayment water meter with isolated communication circuit and metering circuit |
| CN105608802A (en) * | 2015-12-29 | 2016-05-25 | 成都兴联宜科技有限公司 | Photoelectric direct reading prepayment watermeter |
-
2002
- 2002-03-27 CN CN 02222000 patent/CN2530249Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105074390A (en) * | 2013-01-07 | 2015-11-18 | 萨基姆通讯能源及电信联合股份公司 | Device and method for remotely reading a meter |
| CN105074390B (en) * | 2013-01-07 | 2017-09-01 | 萨基姆通讯能源及电信联合股份公司 | Far distance instrument reads apparatus and method |
| CN103487093A (en) * | 2013-09-13 | 2014-01-01 | 上海真兰仪表科技股份有限公司 | Novel sensing device for gas metering |
| CN105045127A (en) * | 2015-08-20 | 2015-11-11 | 成都弘毅天承科技有限公司 | System for reading gas meter of smart home based on Wi-Fi |
| CN105608801A (en) * | 2015-12-29 | 2016-05-25 | 成都兴联宜科技有限公司 | Photoelectric direct reading teletransmission prepayment water meter with isolated communication circuit and metering circuit |
| CN105608802A (en) * | 2015-12-29 | 2016-05-25 | 成都兴联宜科技有限公司 | Photoelectric direct reading prepayment watermeter |
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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 |