CN101144466B - Differential constant flow pump - Google Patents
Differential constant flow pump Download PDFInfo
- Publication number
- CN101144466B CN101144466B CN2007101878899A CN200710187889A CN101144466B CN 101144466 B CN101144466 B CN 101144466B CN 2007101878899 A CN2007101878899 A CN 2007101878899A CN 200710187889 A CN200710187889 A CN 200710187889A CN 101144466 B CN101144466 B CN 101144466B
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- Prior art keywords
- active piston
- differential
- pump housing
- side end
- constant flow
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Abstract
The invention relates to the constant delivery pump technology field, in particular to a differential constant displacement pump. The invention comprises a PLC control device, a pressure fluid pipeline and the control device, and the invention comprises a pump body, a material feeding side end cover of the pump body material feeding side, a material discharging side end cover of the pump body material discharging side, an active piston connected with the material feeding side end cover in the pump body, a differential sleeve hold against the active piston, a material feeding opening and a material outlet opening connected with the active piston, and a side connecting rod connecting the material feeding side end cover and the material discharging side end cover. Two sealing rings are arranged in the active piston. Two sealing rings are respectively arranged inside and outside the differential sleeve. The side connecting rod is penetrated through the differential sleeve and connected with the active piston thorough bolts. The material feeding side end cover and the material discharging side end cover are connected with the pump body through bolts. The active piston is connected withthe electromagnet pneumatic valve of the control device through a pipeline, and the electromagnet pneumatic valve is connected with the PLC control device. The invention provides a constant delivery pump with less spare parts, a simple mechanism, low failure rate, convenient maintenance, and lower cost.
Description
Technical field
The present invention relates to the metering pump technical field, particularly a kind of differential constant flow pump.
Background technique
Present employed metering pump, metering pump of a great variety, its specific embodiments adopts motor and driving mechanism with slurry pressurization back output mostly, the metering method of output generally adopts volume measurement or metering instrument, adopts the input of the metering pump of volume measurement output generally all to adopt one-way valve control; Adopt the output of the metering pump of metering instrument output to need measuring instrument to be installed at output terminal.No matter adopt which kind of metering method, all have some defectives basically: component are many, mechanism is complicated, rate of fault is high, maintenance is inconvenient, cost is higher etc.Therefore wish that some component of exploitation are few, mechanism is simple, rate of fault is low, metering pump easy to maintenance, lower-cost.
Summary of the invention
The purpose of this invention is to provide that a kind of component are few, mechanism is simple, rate of fault is low, metering pump easy to maintenance, lower-cost.
Differential constant flow pump of the present invention, comprise the PLC control gear, pressure fluid pipeline and control gear thereof, it is characterized in that having a pump housing, be located at the feed side end cap of this pump housing feed side, be located at the discharge side end cap of this pump housing discharge side, be located at material inlet and discharge port on this pump housing, the pump housing therewith that is located at material feeding end in this pump housing is made the active piston and the differential sleeve that are slidingly matched, this active piston and differential sleeve constitute a differential attachment, the connecting rod of swinging to that connects described active piston and differential sleeve, described pressure fluid pipeline is connected with the discharge side end cap with the feed side end cap of the pump housing, promotes active piston and differential sleeve and moves reciprocatingly, during feed, material inlet is opened, differential sleeve is blocked discharge port, and during discharging, discharge port is opened, active piston blocks material inlet, and described PLC control gear is connected with the control gear of pressure fluid pipeline.
Described active piston is provided with two seal rings.
Two seal rings are respectively arranged inside and outside the described differential sleeve.
A described end of swinging to connecting rod is connected with described active piston by nut.
Described feed side end cap is connected with the described pump housing by bolt with the discharge side end cap.
Described active piston is connected with the electromagnetism-gas-driving valve of described control gear by pipeline, and this electromagnetism-gas-driving valve is connected with described PLC control gear.
The described pump housing is the metallic material pump housing, the rigid plastics pump housing or the rubber pump housing.
Described active piston is the metallic material active piston, and the described connecting rod of swinging to is that metallic material is swung to connecting rod.
Described pressure fluid is pressurized gas or hydraulic fluid.
Differential constant flow pump of the present invention is under original state, and active piston is at material feeding end, and differential sleeve leans on active piston.When outside material entered in the pump by material inlet, differential sleeve just moved along connecting rod toward exhaust end, until being connected pole spacing.Until this moment, differential sleeve is blocked discharge port always, has been full of quantitative slurry in the pump chamber.Material feeding end at pump feeds pressurized air then, and when active piston was compressed air push, active piston was pushed with material and differential sleeve, arrives discharge port until material, and this moment, differential sleeve arrived the exhaust end of pump, and discharge port is also opened simultaneously.Promote because active piston continues to be compressed fluid, material is discharged from the pump housing, leans on differential sleeve until active piston.So far, pump is finished once output.Stop material feeding end then and feed compressed fluid, feed compressed fluid, promote differential sleeve, connecting rod, and drive active piston and get back to material feeding end, finish a circulation from exhaust end.
The invention provides that a kind of component are few, mechanism is simple, rate of fault is low, metering pump easy to maintenance, lower-cost.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
Below in conjunction with description of drawings the specific embodiment of the present invention.
As shown in Figure 1, differential constant flow pump of the present invention, comprise the PLC control gear, pressure fluid pipeline and control gear thereof, a pump housing 1 is arranged, be located at the feed side end cap 7 of this pump housing 1 feed side, be located at the discharge side end cap 2 of this pump housing 1 discharge side, be located at material inlet 8 and discharge port 9 on this pump housing 1, the pump housing therewith 1 that is located at material feeding end in this pump housing 1 is made the active piston 5 that is slidingly matched, lean the differential sleeve of blocking discharge port 3 on this active piston 5, this active piston 5 and differential sleeve 3 constitute a differential attachment, what connect described active piston 5 and differential sleeve 3 swings to connecting rod 4, and described pressure fluid pipeline is connected with discharge side end cap 2 with the feed side end cap 7 of the pump housing, and described PLC control gear is connected with the control gear of pressure fluid pipeline.
Described active piston 5 is provided with two seal rings.
Two seal rings are respectively arranged inside and outside the described differential sleeve 3.
A described end of swinging to connecting rod 4 is connected with described active piston by nut.
Described feed side end cap 7 is connected with the described pump housing 1 by bolt with discharge side end cap 2.
Described active piston 5 is connected with the electromagnetism-gas-driving valve of described control gear by pipeline, and this electromagnetism-gas-driving valve is connected with described PLC control gear.
The described pump housing 1 is the metallic material pump housing, the rigid plastics pump housing or the rubber pump housing.
Described active piston 5 is the metallic material active piston, and the described connecting rod 4 of swinging to is swung to connecting rod for metallic material.
Described pressure fluid is pressurized gas or hydraulic fluid.
Differential constant flow pump of the present invention is under original state, and active piston is at material feeding end, and differential sleeve leans on active piston.When outside material entered in the pump by material inlet, differential sleeve just moved along connecting rod toward exhaust end, until being connected pole spacing.Until this moment, differential sleeve is blocked discharge port always, has been full of quantitative slurry in the pump chamber.Material feeding end at pump feeds pressurized air then, and when active piston was compressed air push, active piston was pushed with material and differential sleeve, arrives discharge port until material, and this moment, differential sleeve arrived the exhaust end of pump, and discharge port is also opened simultaneously.Promote because active piston continues to be compressed fluid, material is discharged from the pump housing, leans on differential sleeve until active piston.So far, pump is finished once output.Stop material feeding end then and feed compressed fluid, feed compressed fluid, promote differential sleeve, connecting rod, and drive active piston and get back to material feeding end, finish a circulation from exhaust end.
The invention provides that a kind of component are few, mechanism is simple, rate of fault is low, metering pump easy to maintenance, lower-cost.
Claims (9)
1. differential constant flow pump, comprise the PLC control gear, pressure fluid pipeline and control gear thereof, it is characterized in that having a pump housing, be located at the feed side end cap of this pump housing feed side, be located at the discharge side end cap of this pump housing discharge side, be located at material inlet and discharge port on this pump housing, the pump housing therewith that is located at material feeding end in this pump housing is made the active piston and the differential sleeve that are slidingly matched, this active piston and differential sleeve constitute a differential attachment, the connecting rod of swinging to that connects described active piston and differential sleeve, described pressure fluid pipeline is connected with the discharge side end cap with the feed side end cap of the pump housing, promotes active piston and differential sleeve and moves reciprocatingly, during feed, material inlet is opened, differential sleeve is blocked discharge port, and during discharging, discharge port is opened, active piston blocks material inlet, and described PLC control gear is connected with the control gear of pressure fluid pipeline.
2. differential constant flow pump according to claim 1 is characterized in that described active piston is provided with two seal rings.
3. differential constant flow pump according to claim 1 is characterized in that inside and outside the described differential sleeve two seal rings being arranged respectively.
4. differential constant flow pump according to claim 1 is characterized in that a described end of swinging to connecting rod is connected with described active piston by nut.
5. differential constant flow pump according to claim 1 is characterized in that described feed side end cap is connected with the described pump housing by bolt with the discharge side end cap.
6. differential constant flow pump according to claim 1 is characterized in that described active piston is connected with the electromagnetism-gas-driving valve of described control gear by pipeline, and this electromagnetism-gas-driving valve is connected with described PLC control gear.
7. differential constant flow pump according to claim 1 is characterized in that the described pump housing is the metallic material pump housing, the rigid plastics pump housing or the rubber pump housing.
8. differential constant flow pump according to claim 1 is characterized in that described active piston is the metallic material active piston, and the described connecting rod of swinging to is that metallic material is swung to connecting rod.
9. differential constant flow pump according to claim 1 is characterized in that described pressure fluid is pressurized gas or hydraulic fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101878899A CN101144466B (en) | 2007-11-15 | 2007-11-15 | Differential constant flow pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101878899A CN101144466B (en) | 2007-11-15 | 2007-11-15 | Differential constant flow pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101144466A CN101144466A (en) | 2008-03-19 |
| CN101144466B true CN101144466B (en) | 2010-04-21 |
Family
ID=39207158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101878899A Expired - Fee Related CN101144466B (en) | 2007-11-15 | 2007-11-15 | Differential constant flow pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101144466B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100575701C (en) * | 2008-04-30 | 2009-12-30 | 林波 | Metering pump and drive unit thereof |
| WO2022127837A1 (en) * | 2020-12-15 | 2022-06-23 | 北京红海科技开发有限公司 | Pump head and container for daily use |
| WO2022127833A1 (en) * | 2020-12-15 | 2022-06-23 | 北京红海科技开发有限公司 | Pump dispenser and container |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87102904A (en) * | 1987-04-17 | 1987-11-25 | 中国轻工业机械总公司南京轻工机械厂 | Negative pressure metering pump |
| CN2084112U (en) * | 1990-11-20 | 1991-09-04 | 山东省蓬莱特种漆包线厂 | Rotary axle type enamel supply measuring pump for wire anameling machine |
| CN2204865Y (en) * | 1994-07-11 | 1995-08-09 | 西安公路学院 | Buffer trunk piston dosing pump |
| US5817955A (en) * | 1996-03-21 | 1998-10-06 | Bayer Corporation | Apparatus for simultaneous aspiration and dispensation of fluids |
| US6179587B1 (en) * | 1998-05-19 | 2001-01-30 | Hassia Verpackungsmaschinen Gmbh | Dispensing valve mounted on dispensing pumps |
| EP1462232A1 (en) * | 2003-03-24 | 2004-09-29 | TPH Technische Produkte Handelsgesellschaft mbh | Apparatus for conveying at least two fluids in a specific volume ratio |
-
2007
- 2007-11-15 CN CN2007101878899A patent/CN101144466B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87102904A (en) * | 1987-04-17 | 1987-11-25 | 中国轻工业机械总公司南京轻工机械厂 | Negative pressure metering pump |
| CN2084112U (en) * | 1990-11-20 | 1991-09-04 | 山东省蓬莱特种漆包线厂 | Rotary axle type enamel supply measuring pump for wire anameling machine |
| CN2204865Y (en) * | 1994-07-11 | 1995-08-09 | 西安公路学院 | Buffer trunk piston dosing pump |
| US5817955A (en) * | 1996-03-21 | 1998-10-06 | Bayer Corporation | Apparatus for simultaneous aspiration and dispensation of fluids |
| US6179587B1 (en) * | 1998-05-19 | 2001-01-30 | Hassia Verpackungsmaschinen Gmbh | Dispensing valve mounted on dispensing pumps |
| EP1462232A1 (en) * | 2003-03-24 | 2004-09-29 | TPH Technische Produkte Handelsgesellschaft mbh | Apparatus for conveying at least two fluids in a specific volume ratio |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101144466A (en) | 2008-03-19 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: QI YUFU Free format text: FORMER OWNER: QI YONGXIN Effective date: 20080620 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20080620 Address after: Liaoning province Anshan City Tiedong District oasis of 333-04 post: 114001 encoding Applicant after: Qi Yufu Address before: Group 38, Construction Committee of Shannan District, Anshan, Liaoning Province, China: 114001 Applicant before: Qi Yongxin |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100421 Termination date: 20141115 |
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| EXPY | Termination of patent right or utility model |