CN2201657Y - Vane-type flowmeter with electrical contact and permanent-magnet driving - Google Patents
Vane-type flowmeter with electrical contact and permanent-magnet driving Download PDFInfo
- Publication number
- CN2201657Y CN2201657Y CN 93244764 CN93244764U CN2201657Y CN 2201657 Y CN2201657 Y CN 2201657Y CN 93244764 CN93244764 CN 93244764 CN 93244764 U CN93244764 U CN 93244764U CN 2201657 Y CN2201657 Y CN 2201657Y
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- CN
- China
- Prior art keywords
- counting chamber
- impeller
- pointer
- gear reduction
- needle pivot
- Prior art date
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Abstract
The utility model relates to a vane-typed flowmeter with electrical contacts and a permanent-magnet driving, which is characterized in that an indicator needle shaft is arranged in a counting chamber; a knob is arranged at the outer end of the indicator needle shaft, which is used for setting the flow value by driving the indicator needle; a one-way jaw clutch is arranged between the indicator needle shaft and the output shaft of the gear reduction series; electrical contacts are arranged close to the zero scale of a flow dial; a driving impeller arranged in a measuring chamber can drive the rotation of the driven wheel which is arranged in the counting chamber, and drive the action that electrical gas contact through the gear reduction series and the action that the indicator needle is driven by the one-way jaw clutch to return to the position of zero scale to realize quantitative control of flow. The utility model has the advantages of simple structure, no leakage, no influence of impurity and water stain, reliable operation, and long service life.
Description
The utility model is to belong to the flowmeter technology field, particularly a kind of vane flow meter that can be used for quantitatively controlling the permanent magnet transmission that has electric contact of fluid flow.
Existing vane flow meter as water meter, is used for integrated flow.Impeller, gear reduction system and pointer are housed on this flowmeter.When having flow to pass through, blade pass is crossed the moving pointer of gear reduction frenulum and is rotated, and the pointed numerical value of pointer is the flow value of accumulative total, and simultaneously, also causes the measured stream physical efficiency to leak into counting partly by the gap between transmission shaft and the axle bed.Flowmeter in CN2081081U and the CN2067822U patent, though the magnetic drives form that they adopt, avoided leaking the influence to accuracy of instrument, going slick property aspect, above-mentioned technology all belongs to the flowmeter of accumulative total fluid flow, can't finish the work of quantitative Control Flow.
The purpose of this utility model provides a kind of vane flow meter that has the permanent magnet transmission of electric contact, it can finish the work of quantitative Control Flow, can not have a kind of volume control device that various productive life apparatus such as being used for automatic cooker are done quantitative injection control with leaking.
The utility model is to adopt following technical scheme to realize: with reference to Fig. 1, it includes inlet tube joint 3, outlet pipe connection 1, initiatively impeller 2, engaged wheel 4, gear reduction are 5, are used to install the counting chamber 11 of gear reduction train 5 and engaged wheel 4, and be used to install the initiatively measuring room 12 of impeller 2, on counting chamber 11 housings, also be provided with flow scale dish 13.Feature of the present utility model is: be provided with a pair of electrical contact 9 near near counting chamber 11 housings flow scale dish 13 " 0 " scales (promptly " 0 " puts the position); In counting chamber 11, be provided with a root pointer axle 14, fixed cover is equipped with a pointer 7 on the needle pivot 14, the place ahead of counting chamber 11 also is provided with a compression spring 10, be provided with a knob 8 fixedlys connected with needle pivot 14 outer ends in counting chamber 11 outsides, be to be provided with a unidirectional jack clutch 6 between 5 the output shaft (being the output shaft of final stage gear 15) in needle pivot 14 inner ends and gear reduction, be sleeved on compression spring 10 on the needle pivot 14 and the mesh tooth face of the mesh tooth face of secondary part on the unidirectional jack clutch 6 and active part be close to be bonded together, can drive pointer 7 on the needle pivot 14 by turning knob 8 and clockwise rotate and set flow value; Initiatively respectively be provided with the blade made from permanent magnetic material on impeller 2 and the engaged wheel 4, during work, initiatively impeller 2 can drive engaged wheel 4 rotations by magneticaction, engaged wheel 4 is 5 first order gear 16 engagements and drives its rotation (making gear reduction system make gearing-down) by gear and the gear reduction that is contained on its mandrel again, the last pointer 7 that drives on the needle pivot 14 by unidirectional jack clutch 6 again rotates counterclockwise, and is returned to " 0 " scale position until pointer 7 and touches electrical contact 9 actions (cutting off the electricity supply).
From above configuration state as can be known, control procedure during the utility model work is as follows: at first use knob 8 that pointer 7 is clockwise rotated and point on the required flow value, when opening inlet pipeline, when water entered measuring room 12 from inlet tube joint 3, promoting initiatively, impeller 2 rotated the back from outlet pipe connection 1 outflow and to the container water filling.Under the magneticaction of the permanent magnetism blade 4-1 of the permanent magnetism blade 2-1 of active impeller 2 and engaged wheel 4, initiatively impeller 2 drives engaged wheel 4, through gear reduction be 5 and unidirectional jack clutch 6 pointer 7 is rotated counterclockwise, spring 10 makes jack clutch 6 be in engagement state.When being metered into when setting flow, when being returned to " 0 " scale position (be pointer), pointer 7 touches electrical contact 9 and makes the contact action, relay in the control circuit of outside cuts off the power supply (figure slightly) of electromagnetic valve coil, and spool is closed the work that stops water filling and finished quantitative Control Flow.
The utility model is different from known vane flow meter, and it is Control Flow and simple in structure quantitatively.Another advantage of the utility model is not have the reliability of destroying electric contact work because of escape of liquid, and overcomes the influence of foreign material, scale in the reducing gear running, avoids unnecessary wearing and tearing, and the life-span is long.
The utility model can cooperate with the solenoid valve of peripheral hardware and control circuit (for known technology), finishes the work of quantitatively controlling fluid flow in the quantitative injection work of automatic cooker or other apparatus together.
Below in conjunction with accompanying drawing the utility model is described in further detail.
Accompanying drawing 1 is the utility model section assembly structure synoptic diagram.
Arabic numerals in the accompanying drawing are represented with lower member: 1 outlet pipe connection, 2 active impellers, 2-1 permanent magnetism blade, 3 inlet tube joints, 4 engaged wheels, 4-1 permanent magnetism blade, 5 gear reductions system, 6 unidirectional jack clutches, 7 pointers, 8 knobs, 9 electrical contacts, 10 compression springs, 11 counting chambers, 12 measuring rooms, 13 flow scale dishes, 14 needle pivots, 15 final stage gears, 16 first order gears.
Referring to accompanying drawing 1, the utility model is according to being the needs of magnetic drives between active impeller 2 and the engaged wheel 4, its measuring room 12, counting chamber 11, and initiatively the core wheel of impeller 2 and engaged wheel 4 all adopts the non-magnetic made.For example when actual design was made, measuring room 12 can adopt the aluminum alloy materials manufacturing, and the core wheel and all available plastic shaping of the gear in the reducing gear train 5 of counting chamber 11, active impeller 2 and engaged wheel 4.The utility model is when specific design is made in addition, and knob 8 can adopt pin to fixedly connected with needle pivot 14 outer ends.
Claims (2)
1, a kind of vane flow meter that has the permanent magnet transmission of electric contact, comprise inlet pipe adapter (3), outlet pipe connection (1), active impeller (2), engaged wheel (4), gear reduction system (5), be used to install the counting chamber (11) of gear reduction train (5) and engaged wheel (4), and the measuring room (12) that is used for installing active impeller (2), on counting chamber (11) housing, also be provided with flow scale dish (13), it is characterized in that: near near counting chamber (11) housing flow scale dish (13) " 0 " scale, be provided with a pair of electrical contact (9).Be provided with a root pointer axle (14) in counting chamber (11), needle pivot (14) is gone up fixed cover a pointer (7) is housed.The place ahead of counting chamber (11) also is provided with a compression spring (10).Be provided with a knob (8) in counting chamber (11) outside, it is fixedlyed connected with needle pivot (14) outer end.Between the output shaft of needle pivot (14) inner end and gear reduction system (5), be provided with a unidirectional jack clutch (6), be sleeved on mesh tooth face that compression spring (10) on the needle pivot (14) can make unidirectional jack clutch (6) go up the mesh tooth face of secondary part and active part and be close to and be bonded together, can drive pointer (7) on the needle pivot (14) by turning knob (8) and clockwise rotate and set flow value.Initiatively respectively be provided with the blade made from permanent magnetic material on impeller (2) and the engaged wheel (4), during work, initiatively impeller (2) can drive engaged wheel (4) rotation by magneticaction, engaged wheel (4) meshes and drives its rotation by the first order gear (16) that is contained in gear on its mandrel and gear reduction system (5) again, the pointer (7) that drives on the needle pivot (14) by unidirectional jack clutch (6) again rotates counterclockwise at last, is returned to " 0 " scale position until pointer (7) and touches electrical contact (9) and make its action.
2, flowmeter according to claim 1 is characterized in that the core wheel of measuring room (12), counting chamber (11) and active impeller (2) and driven impeller (4) all adopts the non-magnetic made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93244764 CN2201657Y (en) | 1993-11-12 | 1993-11-12 | Vane-type flowmeter with electrical contact and permanent-magnet driving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93244764 CN2201657Y (en) | 1993-11-12 | 1993-11-12 | Vane-type flowmeter with electrical contact and permanent-magnet driving |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2201657Y true CN2201657Y (en) | 1995-06-21 |
Family
ID=33817898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93244764 Expired - Fee Related CN2201657Y (en) | 1993-11-12 | 1993-11-12 | Vane-type flowmeter with electrical contact and permanent-magnet driving |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2201657Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108302827A (en) * | 2017-10-25 | 2018-07-20 | 安徽工业大学 | A kind of solar energy automatic water-supply apparatus |
-
1993
- 1993-11-12 CN CN 93244764 patent/CN2201657Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108302827A (en) * | 2017-10-25 | 2018-07-20 | 安徽工业大学 | A kind of solar energy automatic water-supply apparatus |
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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 |