CN201412285Y - Manual hydraulic pump - Google Patents
Manual hydraulic pump Download PDFInfo
- Publication number
- CN201412285Y CN201412285Y CN200920046240XU CN200920046240U CN201412285Y CN 201412285 Y CN201412285 Y CN 201412285Y CN 200920046240X U CN200920046240X U CN 200920046240XU CN 200920046240 U CN200920046240 U CN 200920046240U CN 201412285 Y CN201412285 Y CN 201412285Y
- Authority
- CN
- China
- Prior art keywords
- pressure
- pressure plunger
- relief valve
- valve body
- handle
- 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 a manual hydraulic pump suitable for heavy machinery industries such as shipbuilding, petrochemical industry, electric power, metallurgy, bridge and railway, which belongsto the technical field of hydraulic pump. The manual hydraulic pump is provided with a pump body, a pressure relief valve component connected with the pump body, a handle connected on the pressure relief valve component and an oil tank, the pressure relief valve component comprises a valve body, a low-pressure plunger and a high-pressure plunger which are arranged on the valve body and oil openings formed on the valve body, wherein the high-pressure plunger is positioned between the low-pressure plunger and the oil openings, seal rings are also arranged at the oil openings on the valve body,the seal rings on the low-pressure plunger close to the high-pressure plunger are Y-shaped rings, the seal rings arranged on the outer circumference of the high-pressure plunger are retaining rings, gaskets and backing rings, a handle sleeve is suited at the front end of the handle, and the handle is connected with the pressure relief valve component through a connecting rod and a rocking arm. Themanual hydraulic pump has the advantages that when the manual hydraulic pump is used by an operator, seizure and easy abrasion of the plungers can not be caused, and various liners are used, so thatthe stability of the seal rings can be improved.
Description
Technical field
The utility model relates to the oil hydraulic pump technical field, especially a kind of hydraulic hand-pump that is applicable to heavy machinery industries such as shipbuilding, petrochemical industry, electric power, metallurgy, bridge, railway.
Background technique
At present, the application of hydraulic hand-pump more and more widely, now the plunger of hydraulic hand-pump commonly used is one, makes the operator in use, because defectives firmly uneven and the stuck and easy wearing and tearing of plunger that side force causes, and easy leakage of oil.
The model utility content
The technical problems to be solved in the utility model is: shortcoming and deficiency in order to solve above-mentioned existence provide a kind of flexible ultrahigh-pressure hydraulic power source hydraulic hand-pump.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of hydraulic hand-pump, has the pump housing, the pressure-relief valve assembly that is connected with the pump housing, be connected handle and fuel tank on the pressure-relief valve assembly, the pressure-relief valve assembly comprises valve body, be arranged at low-pressure plunger and high-pressure plunger and the hydraulic fluid port that is opened on the valve body on the valve body, high-pressure plunger is between low-pressure plunger and hydraulic fluid port, each oil circuit mouth also is provided with seal ring on valve body, by manually, moving handle carries out initial suppressing, because load is less, beginning is mainly pressurizeed by the low-pressure plunger oil suction, hydraulic fluid flow rate can be bigger like this, when load acquires a certain degree,, can't provide power because the low-pressure plunger diameter is bigger, at this moment transfer high-pressure plunger oil suction pressurization to, bigger power source further is provided by minor diameter.
Further, for low-pressure plunger is better sealed, low-pressure plunger is a Y-shaped ring near the seal ring at high-pressure plunger place.
In order to improve the sealing of high-pressure plunger, the seal ring that the high-pressure plunger outer ring is provided with is back-up ring, packing ring and lining ring.
To the action of handle, the handle front end is with taper knob for convenience.
In order to make handle better drive the motion of pressure-relief valve assembly, handle is connected with rocking arm by connecting rod with the pressure-relief valve assembly.
The beneficial effects of the utility model are that hydraulic hand-pump of the present utility model when making that making the author uses, can not cause the defective of the stuck and easy wearing and tearing of plunger, uses various gasket, and the stability of seal ring is improved.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a partial structurtes pressure-relief valve modular construction schematic representation of the present utility model.
Among the figure 1, the pump housing, 2, the pressure-relief valve assembly, 2-1, valve body, 2-2, low-pressure plunger, 2-3, high-pressure plunger, 2-4, hydraulic fluid port, 2-5, Y-shaped ring, 2-6, back-up ring, 2-7, packing ring, 2-8, lining ring, 3, handle, 4, fuel tank, 5, taper knob, 6, connecting rod, 7, rocking arm.
Embodiment
In conjunction with the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic representation of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
The hydraulic hand-pump of preferred forms as shown in Figure 1 and Figure 2, have the pump housing 1, the pressure-relief valve assembly 2 that is connected with the pump housing 1, be connected handle 3 and fuel tank 4 on the pressure-relief valve assembly 2, pressure-relief valve assembly 2 comprises valve body 2-1, be arranged at low-pressure plunger 2-2 and the high-pressure plunger 2-3 on the valve body 2-1 and be opened in hydraulic fluid port 2-4 on the valve body 2-1, high-pressure plunger 2-3 is between low-pressure plunger 2-2 and hydraulic fluid port 2-4, and each oil circuit mouth also is provided with seal ring on valve body 2-1.
Low-pressure plunger 2-2 is Y-shaped ring 2-5 near the seal ring at high-pressure plunger 2-3 place, 2-2 better seals to low-pressure plunger, the seal ring that high-pressure plunger 2-3 outer ring is provided with is back-up ring 2-6, packing ring 2-7 and lining ring 2-8, improved the sealing of high-pressure plunger 2-3, handle 3 front ends are with taper knob 5, handle 3 is connected with rocking arm 7 by connecting rod 6 with pressure-relief valve assembly 2, makes handle 3 better drive the motion of pressure-relief valve assembly 2.
When the utility model is implemented, by driving the motion of handle 3, make low-pressure plunger 2-2 oil suction pressurize, at this moment hydraulic flow is bigger, when load acquires a certain degree, because the diameter of low-pressure plunger 2-2 is bigger, can't provide power, thereby transfer high-pressure plunger 2-3 oil suction pressurization to, bigger power source can be provided, realized requirement power by minor diameter.
With above-mentioned foundation desirable embodiment of the present utility model is enlightenment, and by above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this model utility technological thought.The technical scope of this model utility is not limited to the content on the specification, must determine its technical scope according to the claim scope.
Claims (5)
1. hydraulic hand-pump, have the pump housing (1), the pressure-relief valve assembly (2) that is connected with the pump housing (1), be connected handle (3) and fuel tank (4) on the pressure-relief valve assembly (2), it is characterized in that: pressure-relief valve assembly (2) comprises valve body (2-1), be arranged at low-pressure plunger (2-2) and the high-pressure plunger (2-3) on the valve body (2-1) and be opened in hydraulic fluid port (2-4) on the valve body (2-1), high-pressure plunger (2-3) is positioned between low-pressure plunger (2-2) and the hydraulic fluid port (2-4), goes up each oil circuit mouth at valve body (2-1) and also is provided with seal ring.
2. hydraulic hand-pump according to claim 1 is characterized in that: the seal ring that described low-pressure plunger (2-2) is located near high-pressure plunger (2-3) is Y-shaped ring (2-5).
3. hydraulic hand-pump according to claim 1 is characterized in that: the seal ring that described high-pressure plunger (2-3) outer ring is provided with is back-up ring (2-6), packing ring (2-7) and lining ring (2-8).
4. hydraulic hand-pump according to claim 1 is characterized in that: described handle (3) front end is with taper knob (5).
5. hydraulic hand-pump according to claim 1 is characterized in that: described handle (3) is connected with rocking arm (7) by connecting rod (6) with pressure-relief valve assembly (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920046240XU CN201412285Y (en) | 2009-06-01 | 2009-06-01 | Manual hydraulic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920046240XU CN201412285Y (en) | 2009-06-01 | 2009-06-01 | Manual hydraulic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201412285Y true CN201412285Y (en) | 2010-02-24 |
Family
ID=41714169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920046240XU Expired - Fee Related CN201412285Y (en) | 2009-06-01 | 2009-06-01 | Manual hydraulic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201412285Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105986983A (en) * | 2015-03-02 | 2016-10-05 | 富阳通力机械制造有限公司 | Novel ultrahigh-pressure hydraulic manual pump |
-
2009
- 2009-06-01 CN CN200920046240XU patent/CN201412285Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105986983A (en) * | 2015-03-02 | 2016-10-05 | 富阳通力机械制造有限公司 | Novel ultrahigh-pressure hydraulic manual pump |
| CN105986983B (en) * | 2015-03-02 | 2018-10-09 | 富阳通力机械制造有限公司 | A kind of Ultra-high Pressure Hand Pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100224 Termination date: 20120601 |