CN2416246Y - Double-plunger pump - Google Patents
Double-plunger pump Download PDFInfo
- Publication number
- CN2416246Y CN2416246Y CN 00214326 CN00214326U CN2416246Y CN 2416246 Y CN2416246 Y CN 2416246Y CN 00214326 CN00214326 CN 00214326 CN 00214326 U CN00214326 U CN 00214326U CN 2416246 Y CN2416246 Y CN 2416246Y
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- CN
- China
- Prior art keywords
- plunger
- oil
- assembly
- groups
- pump housing
- 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 relates to hydraulic equipment, particularly a double-plunger pump. The utility model is characterized in that a pump body is provided with two sets of plunger mating holes and two sets of mating holes for one-way valves. An assistant oil inlet channel is arranged between the two sets of plunger mating holes. One set of the two sets of mating holes for one-way valves is communicated with a safety valve hole, and the other set is communicated with a control valve hole via an oil outlet channel. An assistant oil outlet channel is arranged between the two sets of mating holes for one-way valves, and the two sets of mating holes for one-way valves are respectively connected with plunger assembly and one-way valve assembly in a mating way. The utility model adopts double plungers to work, and has the advantages of large oil discharging quantity, high discharging oil pressure, fast lifting speed, stable lifting, etc. The utility model is the ideal hydraulic equipment.
Description
The utility model relates to hydraulic equipment, specifically a kind of double plunger pump.
We know, the existing tractor that is used for, hydraulic lifting on the dump car etc. generally is the single plunger oil hydraulic pump with plunger pump, the pump housing is provided with plunger hole, various oil ducts and oil circuit dispensing orifice, this plunger pump is generally by plunger assembly, engaging and disengaging gear, oil circuit dispensing device and one-way valve, compositions such as safety valve, wherein the piston spring in the plunger assembly is enclosed within the plunger bottom, the plunger lower end is provided with two stage steps, the upper end of piston spring is enclosed within on the pump housing and is inconsistent with the pump housing, the lower end is enclosed within on the step of plunger and is inconsistent with another step, piston spring is to adopt two-way supporting location, and the deficiency of this plunger pump is: oil drain quantity is little, the low speed that makes it promote apparatus of oil extraction pressure is slow, promote unstable.
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provides that a kind of oil drain quantity is big, oil extraction pressure height, lifting speed are fast, promote stable double plunger pump.
For achieving the above object, the utility model can reach by following measure: a kind of double plunger pump, be provided with the pump housing, the pump housing is provided with the plunger matching hole, the control valve matching hole, unidirectional valve opening, safe valve opening and oil input channel, oil road and back oil road etc., and respectively with plunger assembly, the control valve assembly, check valve assembly and relief valve assembly are connected, also be provided with the engaging and disengaging gear assembly on the pump housing, it is characterized in that the pump housing is provided with two groups of plunger matching holes and two groups of one-way valve matching holes, be provided with between two groups of plunger matching holes and pay oil input channel, in two groups of one-way valve matching holes one group is connected with safe valve opening, another group is connected with the manipulation valve opening through oil road, be provided with between two groups of one-way valve matching holes and pay oil duct, and respectively with plunger assembly, the check valve assembly connection that matches.
Two groups of one-way valve matching holes that the utility model is provided with, wherein be provided with the buffering oil groove in one group of one-way valve matching hole, the buffering oil groove is located at pays the oil duct place between two groups of one-way valve matching holes, make high pressure oil that one group of plunger assembly work goes out through one-way valve, pay oil duct and can enter fast in addition in the unidirectional valve opening, enter behaviour's valve by oil road again.
The lower end of the utility model pump housing is a plane, the spring-loaded band lengthening of plunger underpart, by spring-loaded band supporting location, an end and the pump housing lower end surface of piston spring are inconsistent fully for piston spring, and the boss of the other end of piston spring and plunger lower end is inconsistent.
The utility model makes it have advantages such as oil drain quantity is big, oil extraction pressure height, lifting speed is fast, lifting is stable owing to adopt double-plunger work.
Accompanying drawing is a structural representation of the present utility model, also is a kind of embodiment's structural representation.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the A-A sectional view of Fig. 1.
Below in conjunction with accompanying drawing the utility model is further described: as shown in the figure, a kind of double plunger pump, be provided with the pump housing 1, be respectively equipped with plunger matching hole, control valve matching hole, unidirectional valve opening, safe valve opening, oil input channel 6, oil road 7 and safety valve back oil road 5, control valve back oil road 8 etc. on the pump housing 1, and be connected with plunger assembly 9, control valve assembly 11, check valve assembly 10 and relief valve assembly respectively, also be provided with engaging and disengaging gear assembly 12 on the pump housing 1, the structure and the interconnected relationship of above-mentioned each parts are same as the prior art, and this does not give unnecessary details.The pump housing 1 is provided with two groups of plunger matching holes and two groups of one-way valve matching holes, the pump housing 1 between two groups of plunger matching holes is provided with pays an oil input channel 2, in two groups of one-way valve matching holes, one group of one-way valve matching hole is connected with safe valve opening 4, another group one-way valve matching hole is connected with the manipulation valve opening through oil road 7, the pump housing 1 between two groups of one-way valve matching holes is provided with pays oil duct 3, and plunger matching hole, one-way valve matching hole match and are connected with plunger assembly 9, check valve assembly 10 respectively.
Two groups of one-way valve matching hole A, B that the utility model is provided with, A group one-way valve matching hole is provided with buffering oil groove 13, buffering oil groove 13 is located at the opening of paying oil duct 3 between two groups of one-way valve matching holes, make high pressure oil that the work of B group plunger assembly goes out through one-way valve, pay oil duct 3 and can enter A fast and organize in the unidirectional valve opening, enter behaviour's valve 11 by oil road 7 again, rotate Joystick, when Joystick is in the working position, high pressure oil through B group one-way valve matching hole, pay oil duct 3, A and organize unidirectional valve opening, oil road 7, control valve 11 and discharge by oil outlet 14; When Joystick is in off-position, high pressure oil through B group one-way valve matching hole, pay oil duct 3, A and organize unidirectional valve opening, oil road 7, control valve 11, back oil road 8 and flow back to fuel tank.
The lower end surface of the utility model pump housing 1 is-plane, spring-loaded band 16 lengthenings of plunger 15 underparts, piston spring 17 is fully by spring-loaded band 16 supporting location, 1 time Transverse plane of one end of piston spring 17 and the pump housing is inconsistent, and the boss 18 of the other end of piston spring 17 and plunger 15 lower ends is inconsistent.
The utility model adopts double plunger work, has that oil drain quantity is big, oil extraction pressure height, hoisting velocity are fast, carry Rising the advantages such as stable, is a kind of desirable hydraulic test.
Claims (3)
1, a kind of double plunger pump, be provided with the pump housing, the pump housing is provided with the plunger matching hole, the control valve matching hole, unidirectional valve opening, safe valve opening and oil input channel, oil road and back oil road etc., and respectively with plunger assembly, the control valve assembly, check valve assembly and relief valve assembly are connected, also be provided with the engaging and disengaging gear assembly on the pump housing, it is characterized in that the pump housing is provided with two groups of plunger matching holes and two groups of one-way valve matching holes, be provided with between two groups of plunger matching holes and pay oil input channel, one group is connected with safe valve opening in two groups of one-way valve matching holes, another group is connected with the manipulation valve opening through oil road, be provided with between two groups of one-way valve matching holes and pay oil duct, the plunger matching hole, the one-way valve matching hole respectively with plunger assembly, the check valve assembly connection that matches.
2, a kind of double plunger pump according to claim 1, it is characterized in that one group in two groups of one-way valve matching holes is provided with the buffering oil groove, the buffering oil groove is located at pays the oil duct place, make high pressure oil that one group of plunger assembly work goes out through an one-way valve, pay oil duct and can enter fast in another unidirectional valve opening, enter control valve by oil road again.
3, a kind of double plunger pump according to claim 1, the lower end surface that it is characterized in that the pump housing is a plane, the spring-loaded band lengthening of plunger underpart, piston spring is fully by spring-loaded band supporting location, one end and the pump housing lower end surface of piston spring are inconsistent, and the boss of the other end of piston spring and plunger lower end is inconsistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00214326 CN2416246Y (en) | 2000-04-13 | 2000-04-13 | Double-plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00214326 CN2416246Y (en) | 2000-04-13 | 2000-04-13 | Double-plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2416246Y true CN2416246Y (en) | 2001-01-24 |
Family
ID=33580448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00214326 Expired - Fee Related CN2416246Y (en) | 2000-04-13 | 2000-04-13 | Double-plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2416246Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100357592C (en) * | 2004-02-23 | 2007-12-26 | 北京航空航天大学 | Combination pump of piezoelectric ceramics |
| CN102423526A (en) * | 2011-09-14 | 2012-04-25 | 徐州重型机械有限公司 | High rise building and fixed fire fighting system thereof |
| CN105889007A (en) * | 2016-06-17 | 2016-08-24 | 碎得机械(北京)有限公司 | Tubular double-plunger pump |
| CN107281604A (en) * | 2017-06-08 | 2017-10-24 | 青岛康庆和医药科技有限责任公司 | A kind of lung ventilator |
-
2000
- 2000-04-13 CN CN 00214326 patent/CN2416246Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100357592C (en) * | 2004-02-23 | 2007-12-26 | 北京航空航天大学 | Combination pump of piezoelectric ceramics |
| CN102423526A (en) * | 2011-09-14 | 2012-04-25 | 徐州重型机械有限公司 | High rise building and fixed fire fighting system thereof |
| CN105889007A (en) * | 2016-06-17 | 2016-08-24 | 碎得机械(北京)有限公司 | Tubular double-plunger pump |
| CN107281604A (en) * | 2017-06-08 | 2017-10-24 | 青岛康庆和医药科技有限责任公司 | A kind of lung ventilator |
| CN107281604B (en) * | 2017-06-08 | 2019-12-10 | 徐文娟 | Breathing machine |
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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 |