CN2581723Y - Hand variable oil pump - Google Patents
Hand variable oil pump Download PDFInfo
- Publication number
- CN2581723Y CN2581723Y CN 02260876 CN02260876U CN2581723Y CN 2581723 Y CN2581723 Y CN 2581723Y CN 02260876 CN02260876 CN 02260876 CN 02260876 U CN02260876 U CN 02260876U CN 2581723 Y CN2581723 Y CN 2581723Y
- Authority
- CN
- China
- Prior art keywords
- pump
- piston ring
- oil pump
- heart
- spring
- 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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- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model discloses a hand variable oil pump, comprising a pump body and a pump core, wherein, a piston ring and springs are sheathed on the pump core, and pressure regulation nuts are arranged on the pump body. The utility model is characterized in high work efficiency and low cost, and is a hand tool which is convenient in use.
Description
Technical field
The utility model relates to a kind of oil pump, specifically a kind of manual variable capacity oil pump.
Background technique
Existing hand oil pump has only a kind of flow, in use, no matter is zero load or heavy duty, and the oil cylinder piston in the loop has only a kind of movement velocity, thereby has low, the awkward defective of working efficiency.For this reason, also the someone has designed another hand oil pump, and it is to adopt large and small two oil pumps to operate respectively in same loop, but its complex structure, cost of production are higher.
Summary of the invention
The technical problems to be solved in the utility model is at above-mentioned deficiency, designs a kind of simple in structure, manual variable capacity oil pump that manufacture cost is lower.
Embodiment of the present utility model is: it comprises the pump housing, the pump heart, is with piston ring and spring in the heart at pump, and look nut is arranged on the pump housing.
The utility model when unloaded and heavy duty two kinds of different movement velocitys of speed is arranged, thereby can increase work efficiency preferably, and its manufacture cost is also comparatively cheap owing to the oil cylinder piston in the loop.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
As shown in the figure, the utility model comprises the pump housing 5, the pump heart 1, is with piston ring 4 and spring 3 on the pump heart 1, and look nut 2 is arranged on the pump housing 5.Piston ring 4 is placed in the bottom of the pump heart 1, and look nut 2 is threaded onto the top of the pump housing 5, and spring 3 is between piston ring 4 and look nut 2, and the two ends of spring 3 peak at respectively on piston ring 4 and the look nut 2.
Working principle of the present utility model is: when the pump heart 1 upwards draws, be with piston ring 4 pressure springs 3 to move up and oil suction.When the pump heart 1 when pressing down, if when pressure is low in the idle loop, the oil pressure that acts on piston ring 4 bottoms is less than spring 3 pressure, it is together descending with the pump heart 1 that 3 on spring is pushing away piston ring 4, this moment, oil drain quantity was big, the movement velocity of oil cylinder piston is just fast.When heavy duty, when promptly pressure was high in the loop, the oil pressure that acts on piston ring 4 bottoms was greater than spring 3 pressure, and piston ring 4 can not be together descending with the pump heart 1, and this moment, oil drain quantity was just little, and the movement velocity of oil cylinder piston is just slow.The pressure of spring 3 can be regulated by regulating look nut 2.
Claims (2)
1, a kind of manual variable capacity oil pump comprises the pump housing, the pump heart, it is characterized in that being with piston ring and spring in the heart at pump, and look nut is arranged on the pump housing.
2, manual variable capacity oil pump according to claim 1 is characterized in that the bottom of piston ring set in the pump heart, and look nut is threaded onto the top of the pump housing, and spring is between piston ring and look nut, and the two ends of spring peak at respectively on piston ring and the look nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02260876 CN2581723Y (en) | 2002-10-20 | 2002-10-20 | Hand variable oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02260876 CN2581723Y (en) | 2002-10-20 | 2002-10-20 | Hand variable oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2581723Y true CN2581723Y (en) | 2003-10-22 |
Family
ID=33727816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02260876 Expired - Fee Related CN2581723Y (en) | 2002-10-20 | 2002-10-20 | Hand variable oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2581723Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566427A (en) * | 2019-09-24 | 2019-12-13 | 常熟通润汽车零部件股份有限公司 | Large-tonnage vertical hydraulic jack pump body capable of being lifted quickly in no-load mode |
-
2002
- 2002-10-20 CN CN 02260876 patent/CN2581723Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566427A (en) * | 2019-09-24 | 2019-12-13 | 常熟通润汽车零部件股份有限公司 | Large-tonnage vertical hydraulic jack pump body capable of being lifted quickly in no-load mode |
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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 |