CN201155346Y - Diaphragm type plunger engine oil pump - Google Patents
Diaphragm type plunger engine oil pump Download PDFInfo
- Publication number
- CN201155346Y CN201155346Y CNU200820083302XU CN200820083302U CN201155346Y CN 201155346 Y CN201155346 Y CN 201155346Y CN U200820083302X U CNU200820083302X U CN U200820083302XU CN 200820083302 U CN200820083302 U CN 200820083302U CN 201155346 Y CN201155346 Y CN 201155346Y
- Authority
- CN
- China
- Prior art keywords
- pump
- oil
- passage
- pump housing
- diaphragm
- 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 - Lifetime
Links
- 239000010705 motor oil Substances 0.000 title claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 5
- 239000010959 steel Substances 0.000 claims abstract description 5
- 239000003921 oil Substances 0.000 claims description 35
- 210000004907 gland Anatomy 0.000 claims description 9
- 238000005299 abrasion Methods 0.000 abstract 1
- 239000011324 bead Substances 0.000 abstract 1
- 239000010721 machine oil Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000003502 gasoline Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Landscapes
- Reciprocating Pumps (AREA)
Abstract
The utility model belongs to an oil pump, in particular to a film-typed piston oil pump, comprising a pump body and a pump cover; passages are communicated inside the pump body and the pump cover; the passage above the pump cover is connected with a crankshaft box of an engine; the passage inside the pump body is an oil passage; the lower part of the oil passage is connected with an external pipeline; the film-typed piston oil pump is characterized in that the pump body is internally provided with a film component which comprises a film, a piston, a pressing cover and a riveting block; the film is pressed by the pressing cover; the pressing cover and the piston are riveted by the riveting block; the film component is arranged below the passage of the pump cover; the piston is arranged inside the oil passage; the lower side of the oil passage is provided with two oil inlet holes; the lower part of the oil passage is provided with a check valve which is formed by a steel bead and a spring; a spring is fixed in the pump body by a retaining pin. The film-typed piston oil pump has reliable performance, difficult abrasion and long service life.
Description
Technical field
The utility model belongs to the oil pump class, specifically is a kind of diaphragm type piston engine oil pump that is specifically designed to gasoline chain saw.
Background technique
Gasoline chain saw is when cutting saw, chain and guide plate need oil lubricating, therefore oil pump becomes indispensable part on the gasoline chain saw, oil pump relatively more commonly used now is a turbine and worm formula oil pump, and main structure is worm screw and turbine engagement, and oil pump is connected on the worm screw, drive the turbine rotation by bent axle, realize oil pump feed, the driving force of oil pump derives from bent axle, and it is a kind of pure mechanically operated oil pump.The attachment portion of oil pump and bent axle is exactly a turbine, and turbine generally uses the plastics manufacturing now, and its major defect is that the installing and locating of oil pump requires height, and turbine is easy to wear, causes the working life of oil pump not long, the repair rate height.
Summary of the invention
The purpose of this utility model is the deficiency at existing technology, and a kind of reliability height, not easy to wear, long service life, diaphragm type piston engine oil pump that cost is low are provided.
The technical solution of the utility model is as follows:
A kind of diaphragm type piston engine oil pump, comprise the pump housing, pump cover, in the pump housing and the pump cover passage that communicates is arranged, the passage of pump cover top is connected with the crankcase of motor, pump housing internal channel is an oil passageway, the oil passageway bottom has connected Outer Tube, it is characterized in that: be provided with diaphragm unit in the pump housing, diaphragm unit comprises diaphragm, plunger, gland and riveted joint piece, diaphragm is compressed by gland, and by riveting piece with gland and plunger riveted joint, diaphragm unit is below the passage of pump cover, and plunger is in oil passageway, and the oil passageway downside has two oil inlet holes, the one-way valve that the oil passageway bottom has a steel ball and spring to form, spring is fixed in the pump housing by backing pin.
The pump housing of the present utility model has filter core outward, and filter core is contained on the filter core support, and the filter core support is connected on the pump housing by the filter core back-up ring.
The utility model can directly be placed on oil pump in the sump or be fixed on the fuel tank bottom, the working environment of oil pump is an airtight environment, be subjected to the influence of external environment condition hardly, and almost there is not mechanical wear, can guarantee the working life and the stability of oil pump, different types just can be realized different pump oil masses as long as change the diameter or the stroke of plunger.The utility model reliable performance, not easy to wear, long service life.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the membrane combination structural representation.
Embodiment
As Fig. 1, shown in 2, a kind of diaphragm type piston engine oil pump, comprise the pump housing 3, pump cover 1, in the pump housing 3 and the pump cover 1 passage that communicates is arranged, the passage of pump cover 1 top is connected with the crankcase of motor, pump housing internal channel is an oil passageway, the oil passageway bottom has connected Outer Tube, it is characterized in that: in the pump housing 3, be provided with diaphragm unit 2, diaphragm unit 2 comprises diaphragm 13, plunger 14, gland 12 and riveted joint piece 11, diaphragm 13 is compressed by gland 12, and by riveted joint piece 11 with gland 12 and plunger 14 riveted joints, diaphragm unit 2 is below the passage of pump cover 1, plunger 14 is in oil passageway, the oil passageway downside has two oil inlet holes, the one-way valve that the oil passageway bottom has a steel ball 4 and spring 5 to form, and spring 5 is fixed in the pump housing 3 by backing pin 6.
Have filter core 7, filter core 7 to be contained on the filter core support 8 outside the pump housing 3 of the present utility model, filter core support 8 is connected on the pump housing 3 by filter core back-up ring 9.
1 of the utility model pump housing 3 and pump cover have sealing gasket 10.
During the utility model work, the connecting passage of pump cover top is connected with the crankcase of motor, variation moves up and down diaphragm according to crankcase pressure, when crankcase is malleation, the extruding that diaphragm is stressed moves downward, the plunger 14 that drives on the diaphragm unit is downward, because plunger is very little with the gap of pump housing endoporus, add the viscosity height of machine oil, the plunger 14 and the pump housing 3 form the closed chamber that pressure is very high, and machine oil will be broken through steel ball 4 and the one-way valve discharge that spring 5 forms, and flows into the Outer Tube that joins with the pump housing, when the pressure in the crankcase becomes negative pressure, diaphragm is because the effect of negative pressure drives plunger and moves upward, and just the hyperbaric chamber that forms becomes a negative cavity at once, because the effect of one-way valve is arranged, machine oil just is inhaled into oil passageway by filler opening.So machine oil is just constantly extruded, and realizes the machine oil pumping.
One equalizing orifice is arranged on the connecting passage of the pump cover of the present utility model and the pump housing, and the equalizing orifice diameter plays the pressure balance effect about 1mm, makes the diaphragm lower passage be unlikely to form vacuum chamber, and the overslaugh diaphragm moves up and down.
Claims (3)
1, a kind of diaphragm type piston engine oil pump, comprise the pump housing (3), pump cover (1), in the pump housing (3) and the pump cover (1) passage that communicates is arranged, the passage of pump cover (1) top is connected with the crankcase of motor, pump housing internal channel is an oil passageway, the oil passageway bottom has connected Outer Tube, it is characterized in that: in the pump housing (3), be provided with diaphragm unit (2), diaphragm unit (2) comprises diaphragm (13), plunger (14), gland (12) and riveted joint piece (11), diaphragm (13) is compressed by gland (12), and by riveting piece (11) with gland (12) and plunger (14) riveted joint, diaphragm unit (2) is in the below of the passage of pump cover (1), plunger (14) is in oil passageway, the oil passageway downside has two oil inlet holes, the one-way valve that the oil passageway bottom has a steel ball (4) and spring (5) to form, spring (5) is fixed in the pump housing (3) by backing pin (6).
2, diaphragm type piston engine oil pump according to claim 1 is characterized in that: the pump housing (3) is outer to have filter core (7), filter core (7) to be contained on the filter core support (8), and filter core support (8) is connected on the pump housing (3) by filter core back-up ring (9).
3, diaphragm type piston engine oil pump according to claim 1 is characterized in that: an equalizing orifice is arranged on the connecting passage of the pump cover and the pump housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820083302XU CN201155346Y (en) | 2008-02-01 | 2008-02-01 | Diaphragm type plunger engine oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820083302XU CN201155346Y (en) | 2008-02-01 | 2008-02-01 | Diaphragm type plunger engine oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201155346Y true CN201155346Y (en) | 2008-11-26 |
Family
ID=40103129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820083302XU Expired - Lifetime CN201155346Y (en) | 2008-02-01 | 2008-02-01 | Diaphragm type plunger engine oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201155346Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107117156A (en) * | 2017-04-27 | 2017-09-01 | 合肥晟泰克汽车电子股份有限公司 | Pressure alarm |
| CN117656182A (en) * | 2022-09-01 | 2024-03-08 | 南京泉峰科技有限公司 | An electric tool and a chain saw |
-
2008
- 2008-02-01 CN CNU200820083302XU patent/CN201155346Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107117156A (en) * | 2017-04-27 | 2017-09-01 | 合肥晟泰克汽车电子股份有限公司 | Pressure alarm |
| CN117656182A (en) * | 2022-09-01 | 2024-03-08 | 南京泉峰科技有限公司 | An electric tool and a chain saw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Pioneer Machinery & Electron Co., Ltd. Assignor: Yang Huiming Contract record no.: 2010330000840 Denomination of utility model: Diaphragm type plunger engine oil pump Granted publication date: 20081126 License type: Exclusive License Record date: 20100512 |
|
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG PIONEER MACHINERY + ELECTRON CO., LTD. Free format text: FORMER OWNER: YANG HUIMING Effective date: 20100705 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 321042 LINGXIAZHU INDUSTRIAL PARK ZONE, JINDONG DISTRICT, JINHUA CITY, ZHEJIANG PROVINCE ( JINHUA PIONEER MACHINERY + ELECTRON CO., LTD.) TO: 321042 LINGXIAZHU INDUSTRIAL PARK, JINDONG DISTRICT, JINHUA CITY, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100705 Address after: 321042 Jinhua Province, Eastern Jin Ling Ling Industrial Park Patentee after: Zhejiang Pioneer Machinery & Electron Co., Ltd. Address before: 321042 Zhejiang Province, Jinhua City Jindong Ling Zhu Industrial Park (Jinhua pioneer electrical limited company) Patentee before: Yang Huiming |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 321042 Jinhua Province, Eastern Jin Ling Ling Industrial Park Patentee after: Zhejiang Painier Technology Inc. Address before: 321042 Jinhua Province, Eastern Jin Ling Ling Industrial Park Patentee before: Zhejiang Pioneer Machinery & Electron Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20081126 |
|
| CX01 | Expiry of patent term |