CN2338506Y - Directly controlled type diaphragm metering pump - Google Patents
Directly controlled type diaphragm metering pump Download PDFInfo
- Publication number
- CN2338506Y CN2338506Y CN 98215456 CN98215456U CN2338506Y CN 2338506 Y CN2338506 Y CN 2338506Y CN 98215456 CN98215456 CN 98215456 CN 98215456 U CN98215456 U CN 98215456U CN 2338506 Y CN2338506 Y CN 2338506Y
- Authority
- CN
- China
- Prior art keywords
- plunger
- flow
- casing
- utility
- model
- 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.)
- Ceased
Links
Abstract
The utility model relates to a directly controlled type diaphragm metering pump. A box body is connected with a pump head into a whole. The pump head is provided with a medium cavity, an inlet check valve and an outlet check valve. The interior of the box body is provided with a regulation and metering mechanism and a speed-reduction and driving mechanism which is composed of a worm rod, a worm wheel, an eccentric wheel, a connecting rod, a plunger, etc. The utility model is characterized in that the regulation and metering mechanism is composed of a flow regulation screw rod, a flow regulation turn knob, turn knob fixing screws, an indicator disc, flow regulation screw nuts, a sealing plate and a flow control rod. The utility model has the advantages that the volume is small and is one half of the national like product, the regulation and metering mechanism is simplified, the metering precision is high, the operation is stable and reliable, the use is convenient, and the utility model is visually and directly controlled. The utility model is used for quantitatively delivering various inflammable, explosive, toxic, corrosive or non-corrosive special mediums.
Description
The utility model belongs to can measure the reciprocating diaphragm pump of carrying liquid medium.
A kind of name is called the disclosed metering reciprocating pump of patent application (application number is 9223823.2) of " diaphragm metering pump ", existing diaphragm pump is improved, cancelled a cover N type bent axle length of stroke controlling mechanism in power end, make plunger reciprocating with a fixing stroke, eliminated the variation at preceding dead point, thereby the volumetric efficiency and the measuring accuracy of pump have been guaranteed, fluid end has removed two valve oil cup parts, only with a cover relief valve assembly, set up the accent measuring mechanism, make Flow-rate adjustment accurate, stable, though this improvement has improved volumetric efficiency and measuring accuracy than conventional art, the accent measuring mechanism part of being set up is numerous, the requirement on machining accuracy height, the production difficulty is bigger, simultaneously also need be with main, pay two plungers and cooperate the purpose that reaches the accent amount with transferring measuring mechanism, its complex structure, volume is bigger, manufacture cost height, motion state are very unstable yet.
The purpose of this utility model is to overcome above technological deficiency, provides a kind of volume spy little, transfers measuring mechanism extremely to oversimplify, but the measuring accuracy height, working stability, use very convenient, and the diaphragm metering pump that can directly control.
The utility model adopts casing and the pump head that has media cavity and import and export safety check to be integral with bolton; in casing, be provided with worm screw; worm gear reducer mechanism; make plunger do straight reciprocating motion by eccentric wheel and connecting rod; in the plunger cavity on casing oil pressure gone into (sucking-off) hydraulic pressure cavity; in completely cutting off down of corrosion resistant barrier film; make the media cavity generation volume-variation on the pump head relevant position; import and export safety check by pump head sucks (discharge) with media fluid; one oil inlet hole and the relief valve that is connected with plunger cavity in the casing chamber arranged at the plunger cavity top of casing; when outlet pressure during greater than setting value; relief valve is opened; pressure oil is in oil-through hole returns the casing chamber; the protection whole system; there is a shaft shoulder plunger front portion, and shaft shoulder place has a radial hole to communicate with the casing chamber to spill port by the controlling rod sliding eye and the plunger central shaft at plunger center.Accent accuracy of measurement height, working stability that plunger cavity front end on the casing is made up of Flow-rate adjustment screw rod, Flow-rate adjustment knob, knob Cock screw, indicator panel, Flow-rate adjustment nut, sealing plate and controlling rod are reliable, and be easy to use and can directly control flow control device intuitively.
The extremely simple and direct flow control device of the utility model design has following advantage: reduced part 1., accuracy of manufacturing and assembly precision to part have brought convenience, have dwindled volume, and the volume of this pump has only 1/2 of domestic like product, reduce manufacture cost, used maintenance also very convenient.2. the structural feature of self has been stopped leakage phenomenon.3. by the pressure of defeated medium and the accommodometer accuracy of measurement height of flow, working stability is reliable, and is easy to use, can intuitively directly control.
Description of drawings:
Fig. 1 Fig. 2 is a structural representation
Fig. 3 is the partial cutaway diagrammatic sketch
Below the foregoing description, be further elaborated
The casing (5) of directly controlled type diaphragm metering pump (seeing Fig. 1-3) is connected with motor frame (19) motor (20), the axle of motor (20) is connected with worm screw (18), worm screw (18) and worm gear (17) engagement driving, eccentric wheel and worm gear (17) one is cast, eccentric wheel becomes to be slidingly matched with connecting rod (1), connecting rod (1) one end is linked to be movable joint by pivot pin (15) and plunger (2), plunger (2) is slippery with the plunger cavity on the casing (5), there is a shaft shoulder plunger (2) front portion, shaft shoulder place has radially, and spill port (12) communicates with casing (5) inner chamber by the flow control bar hole (3) at plunger (2) center and the axial spill port (14) at plunger (2) center, there is oil inlet hole (16) and the relief valve (13) that communicates with casing chamber and plunger cavity the plunger cavity top of casing (5), casing (5) plunger cavity front end has Flow-rate adjustment screw rod (11), Flow-rate adjustment knob (9), knob Cock screw (10), indicator panel (8), Flow-rate adjustment nut (7), the flow control device that sealing plate (6) and flow control bar (4) are formed.The plunger cavity of casing (5) has an oilhole (21) that communicates with hydraulic pressure cavity (22), barrier film fixed tray (25,27) is fixing with barrier film (24), the pump head (28) that is provided with media cavity (23) tightens up with bolt and casing (5), formation is the hydraulic pressure cavity (22) and the media cavity (23) on boundary with barrier film (24), and pump head (28) is provided with imports and exports safety check (26,29).
The course of action of this pump is as follows: motor (20) rotation, slow down by worm screw (18) worm gear (17), eccentric wheel drive link (1) on the worm gear (17) will rotatablely move and change to-and-fro motion into, drive to become the plunger (2) of loose joint to do straight reciprocating motion in the plunger cavity of casing (5) with connecting rod (1).The oil inlet hole (16) of the endoceliac oil of case through the plunger cavity top enters the plunger cavity of casing (5), plunger (2) motion by the band shoulder, the pressure oil of one fixed capacity is pressed into (sucking-off) by the oilhole (21) that communicates with hydraulic pressure cavity (22) in the plunger cavity, media cavity (23) volume of pump head (28) is changed, reach the purpose of suction (row) medium by the import and export safety check (26,29) of pump head (28).Flow-rate adjustment is that turn Flow-rate adjustment knob (9) moves axially flow control bar (4), change the plunger radial spill port (12) at plunger (2) shaft shoulder place and the relative position on flow control bar (4) top, plunger radial spill port (12) from 0～100% running length scope internal congestion plunger (2) shaft shoulder, thereby change the actual volume (capacity of hydraulic oil) of plunger cavity, reach the purpose of regulating flow.
Claims (2)
1, a kind of directly controlled type diaphragm metering pump, by casing (5) with have media cavity (23) and import and export safety check (26,29) pump head (28) links into an integrated entity, be provided with worm screw (18) worm gear (17) in the casing (5), eccentric wheel with worm gear (17) one, the deceleration that connecting rod (1) plunger (2) is formed, the accent measuring mechanism of driving mechanism and casing plunger cavity front end, it is characterized in that described accent measuring mechanism is by Flow-rate adjustment screw rod (11), Flow-rate adjustment knob (9), knob Cock screw (10) indicator panel (8) Flow-rate adjustment nut (7) sealing plate (6) and flow control bar (4).
2, metering pump as claimed in claim 1, it is characterized in that there is a shaft shoulder plunger (2) front portion, shaft shoulder place have one radially spill port (12) communicate with casing (5) inner chamber by the flow control bar hole (3) at plunger (2) center and the axial spill port (14) at plunger (2) center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98215456 CN2338506Y (en) | 1998-06-10 | 1998-06-10 | Directly controlled type diaphragm metering pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98215456 CN2338506Y (en) | 1998-06-10 | 1998-06-10 | Directly controlled type diaphragm metering pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2338506Y true CN2338506Y (en) | 1999-09-15 |
Family
ID=33968767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98215456 Ceased CN2338506Y (en) | 1998-06-10 | 1998-06-10 | Directly controlled type diaphragm metering pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2338506Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518574A (en) * | 2012-01-09 | 2012-06-27 | 马鞍山基业环保科技有限公司 | Dual-regulating low-pulse diaphragm metering pump with two pump heads |
| CN106286190A (en) * | 2016-10-18 | 2017-01-04 | 常州江南龙城泵业科技有限公司 | hydraulic diaphragm metering pump |
-
1998
- 1998-06-10 CN CN 98215456 patent/CN2338506Y/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518574A (en) * | 2012-01-09 | 2012-06-27 | 马鞍山基业环保科技有限公司 | Dual-regulating low-pulse diaphragm metering pump with two pump heads |
| CN106286190A (en) * | 2016-10-18 | 2017-01-04 | 常州江南龙城泵业科技有限公司 | hydraulic diaphragm metering pump |
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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 | ||
| C35 | Partial or whole invalidation of patent or utility model | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20010723 Decision number of declaring invalidation: 3476 |