CN208026319U - A kind of gas meter - Google Patents
A kind of gas meter Download PDFInfo
- Publication number
- CN208026319U CN208026319U CN201820326487.6U CN201820326487U CN208026319U CN 208026319 U CN208026319 U CN 208026319U CN 201820326487 U CN201820326487 U CN 201820326487U CN 208026319 U CN208026319 U CN 208026319U
- Authority
- CN
- China
- Prior art keywords
- magnet
- transmission
- shell
- gas
- magnetic sensor
- 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 provides a kind of gas meter comprising shell, gas flow cell, transmission mechanism, measuring mechanism and control panel, gas flow cell are arranged inside the shell with control panel；Transmission mechanism includes diaphragm, and diaphragm is located in gas flow cell, and transmission shaft one end connects diaphragm, and the other end is connect by transmission arm with crank gear, and crank gear is engaged with idle pulley；Measuring mechanism includes measuring gear, measures gear and engage with idle pulley and center axis connection magnet protective shell, magnet setting in magnet protective shell, magnetic sensor be arranged on the shell and with magnet parallel opposed, magnetic sensor is also electrically connected with control panel.The foreign matters such as the metal powder in gas that float will not be in direct contact with magnet, the changes of magnetic field that weakening effect is generated from magnet by the centrifugal force generated by the rotation of rotor in foreign matter, measuring mechanism can work normally for a long time, and high-precision can be realized with a low cost in the case where not significantly alterring the internal structure of gas meter, flow meter.
Description
Technical field
The utility model is related to flow meter technical field more particularly to a kind of gas meters.
Background technology
Gas meter, flow meter be used to measure the amount of consumed gas of each consumer such as family and dining room, but in addition to being used to measure combustion gas
Further include combustion gas closing organ and gas leakage detection function etc. except consumption.
All it is that diaphragm is connected with crank mechanism inside general gas meter, the displacement of diaphragm causes comprising magnet
Rotor rotates.Changes of magnetic field caused by being rotated by magnet is measured by magnetic sensor, by microcomputer according to from magnetic transducing
The pulse of device transmission calculates flow.
Since the magnet for flow measurement is not isolated in the flow path of gas, it is thus possible to iron powder can be adsorbed
Equal foreign matters increase with the absorption of this foreign matter, and therefore magnetic field can also change, measuring accuracy is deteriorated.
Utility model content
The utility model is the existing above problem in view of the prior art, provide it is a kind of can avoid it is different in gas
The influence of object, the combustion gas meter flow-meter of the sustainable high-acruracy survey of energy.
Technical solution adopted by the utility model to solve its technical problems is：
A kind of gas meter, including shell, gas flow cell, transmission mechanism, measuring mechanism and control panel, the gas
Body flow chamber is arranged inside the shell with control panel；
Transmission mechanism includes diaphragm, transmission shaft, transmission arm, crank gear, idle pulley, and the diaphragm is located at gas flow cell
Interior, described transmission shaft one end connects diaphragm, and the other end is connect by transmission arm with crank gear, and the crank gear is nibbled with idle pulley
It closes；
Measuring mechanism includes measuring gear, magnet, magnet protective shell and magnetic sensor, the measurement gear to nibble with idle pulley
Merge and center axis connection magnet protective shell, the magnet are arranged in magnet protective shell, the magnetic sensor setting is outside
On shell and with magnet parallel opposed, magnetic sensor is also electrically connected with control panel.
Further, the transmission arm is divided into long transmission arm and short pass swing arm, and long transmission arm and transmission axis connection, short pass are dynamic
Arm is connect with crank gear, and long transmission arm is connect with short pass swing arm by shaft.
Further, the diaphragm, transmission shaft and transmission arm are both provided with two, and two transmission arms are positioned at same
Point is connect with crank gear.
Further, the magnet protective shell is formed by resin material.
Further, the magnet is no more than 1cm at a distance from magnetic sensor.
Further, the magnet protective shell is made of fixing end and detachable end clamping, and fixing end is provided with grab, can
Dismounting end is provided with card slot, taking-up magnet can be detached with fixing end by detachable end.
Further, the shell is provided with magnetic sensor slot, and the magnetic sensor is arranged in magnetic sensor
In slot, and it can be taken out out of magnetic sensor slot.
The utility model has the beneficial effects that：
The utility model make by by entire measuring mechanism as gas flow cell outside, and by magnet be mounted on magnetic
In protecting envelope, magnet protective shell covers the magnet being mounted on the rotor, and the foreign matters such as metal powder to float in gas will not
It is in direct contact with magnet.Therefore, weakening effect passes through the power of the centrifugal force separate generated by the rotation of rotor in foreign matter from magnet
The changes of magnetic field of generation, measuring mechanism can work normally for a long time.By the function, combustion gas can not significantly alterred
To be realized with a low cost high-precision in the case of the internal structure of table.
Description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the part-structure stereogram of the gas meter of the utility model；
Fig. 2 is the structural schematic diagram of the gas meter of the utility model；
Fig. 3 is the measuring mechanism structural schematic diagram of the utility model.
Reference numeral：1, shell；2, gas flow cell；3, transmission mechanism；31, transmission shaft；32, transmission arm；321, long pass
Swing arm；322, short pass swing arm；323, shaft；33, crank gear；34, idle pulley；4, measuring mechanism；41, gear is measured；42, magnetic
Body；43, magnet protective shell；431, fixing end；432, detachable end；433, grab；434, card slot；44, magnetic sensor；5, it controls
Panel processed.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
As shown in Figs. 1-3, a kind of gas meter, including shell 1, gas flow cell 2, transmission mechanism 3, measuring mechanism 4
With control panel 5, the gas flow cell 2 is arranged with control panel 5 in shell 1；
Transmission mechanism 3 include diaphragm (not depending on going out), transmission shaft 31, transmission arm 32, crank gear 33, idle pulley 34, it is described every
Film is located in gas flow cell 2, and 31 one end of the transmission shaft connects diaphragm, and the other end is connected by transmission arm 32 and crank gear 33
It connects, the crank gear 33 is engaged with idle pulley 34；
Measuring mechanism 4 includes measuring gear 41, magnet 42, magnet protective shell 43 and magnetic sensor 44, the measurement tooth
Wheel 41 is engaged with idle pulley 34 and center axis connection magnet protective shell 43, and the magnet 42 is arranged in magnet protective shell 43, magnetic
Protecting envelope 43 is usually formed by resin material, and the setting of the magnetic sensor 44 is on shell 1 and parallel with magnet 42 right
It sets, in general magnet 42 is no more than 1cm at a distance from magnetic sensor 44, and magnetic sensor 44 is also electrically connected with control panel 5
It connects.
Outside by entire measuring mechanism 4 as gas flow cell 2, and by being mounted on magnet protective shell in magnet 42
In 43, magnet protective shell covers the magnet being mounted on the rotor, and the foreign matters such as metal powder to float in gas will not be with magnet
42 are in direct contact.Therefore, weaken or even act on foreign matter and pass through the centrifugal force separate generated by the rotation of rotor from magnet 42
The changes of magnetic field that power generates, 4 long-time of measuring mechanism can work normally.By the function, can not significantly alter
To be realized with a low cost high-precision in the case of the internal structure of gas meter, flow meter.
The first preferred technical solution, the transmission arm 32 divide for long transmission arm 321 and short pass swing arm 322, long transmission
Arm 321 is connect with transmission shaft 31, and short pass swing arm 322 is connect with crank gear 33, and long transmission arm 321 passes through with short pass swing arm 322
Shaft 323 connects.The possibility blocked can effectively be reduced by separating 32 two sections of settings of transmission arm, improve stability.
And the diaphragm, transmission shaft 31 and transmission arm 32 can be provided with two, and two transmission arms 32 are located at
The same point is connect with crank gear 33.Setting can improve the accuracy of transmission in this way.
Second of preferred technical solution, the magnet protective shell 43 is by 432 clamping group of fixing end 431 and detachable end
At fixing end 431 is provided with grab 433, and detachable end 432 is provided with card slot 434, by detachable end 432 and can fix
Magnet 42 is taken out in 431 separation of end.
It is that can regularly replace magnet 42 prevents by the purpose that magnet 42 is arranged to dismantle from magnet protective shell 43
Cause magnet 42 magnetic weak too long using the same magnet 42, causes to measure not accurate problem.
The third preferred technical solution, the shell 1 are provided with magnetic sensor slot 11, the magnetic sensor 44
It is arranged in magnetic sensor slot 11, and can be taken out out of magnetic sensor slot 11.
It is that can regularly replace magnetic sensor by the purpose that magnetic sensor 44 is arranged to dismantle from shell 1
44 prevent from causing 44 Magnetic Induction ability of magnetic sensor weak too long using the same magnetic sensor 44, cause to measure not smart
Accurate problem.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (7)
1. a kind of gas meter, it is characterised in that：Including shell (1), gas flow cell (2), transmission mechanism (3), measuring machine
Structure (4) and control panel (5), the gas flow cell (2) are arranged with control panel (5) in shell (1)；
Transmission mechanism (3) includes diaphragm, transmission shaft (31), transmission arm (32), crank gear (33), idle pulley (34), the diaphragm
In gas flow cell (2), described transmission shaft (31) one end connects diaphragm, and the other end passes through transmission arm (32) and crank gear
(33) it connects, the crank gear (33) is engaged with idle pulley (34)；
Measuring mechanism (4) includes measuring gear (41), magnet (42), magnet protective shell (43) and magnetic sensor (44), described
Measurement gear (41) is engaged with idle pulley (34) and center axis connection magnet protective shell (43), and the magnet (42) is arranged in magnet
In protective shell (43), the magnetic sensor (44) be arranged on shell (1) and with magnet (42) parallel opposed, magnetic transducing
Device (44) is also electrically connected with control panel (5).
2. a kind of gas meter according to claim 1, it is characterised in that：The transmission arm (32) is divided into long transmission arm
(321) it is connect with transmission shaft (31) with short pass swing arm (322), long transmission arm (321), short pass swing arm (322) and crank gear
(33) it connects, long transmission arm (321) is connect with short pass swing arm (322) by shaft (323).
3. a kind of gas meter according to claim 2, it is characterised in that：The diaphragm, transmission shaft (31) and transmission
Arm (32) is both provided with two, and two transmission arms (32) are located at the same point and are connect with crank gear (33).
4. a kind of gas meter according to claim 1, it is characterised in that：The magnet protective shell (43) is by resinous wood
Material is formed.
5. a kind of gas meter according to claim 1, it is characterised in that：The magnet (42) and magnetic sensor
(44) distance is no more than 1cm.
6. according to a kind of any gas meters of claim 1-5, it is characterised in that：The magnet protective shell (43) by
Fixing end (431) and detachable end (432) clamping composition, fixing end (431) are provided with grab (433), and detachable end (432) is set
It is equipped with card slot (434), can be detached with fixing end (431) by detachable end (432) and take out magnet (42).
7. according to a kind of any gas meters of claim 1-5, it is characterised in that：The shell (1) is provided with magnetic
Property sensor slot (11), the magnetic sensor (44) setting, and can be from magnetism in magnetic sensor slot (11)
It is taken out in sensor slot (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820326487.6U CN208026319U (en) | 2018-03-09 | 2018-03-09 | A kind of gas meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820326487.6U CN208026319U (en) | 2018-03-09 | 2018-03-09 | A kind of gas meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208026319U true CN208026319U (en) | 2018-10-30 |
Family
ID=63905456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820326487.6U Expired - Fee Related CN208026319U (en) | 2018-03-09 | 2018-03-09 | A kind of gas meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208026319U (en) |
-
2018
- 2018-03-09 CN CN201820326487.6U patent/CN208026319U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181030 Termination date: 20190309 |