CN102705223A - Hydraulic pump - Google Patents
Hydraulic pump Download PDFInfo
- Publication number
- CN102705223A CN102705223A CN2012101397902A CN201210139790A CN102705223A CN 102705223 A CN102705223 A CN 102705223A CN 2012101397902 A CN2012101397902 A CN 2012101397902A CN 201210139790 A CN201210139790 A CN 201210139790A CN 102705223 A CN102705223 A CN 102705223A
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- China
- Prior art keywords
- hydraulic pump
- spring
- valve
- valve seat
- oil hydraulic
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Abstract
The invention discloses a hydraulic pump. The hydraulic pump comprises a hydraulic pump body and a pressure relief valve. The pressure relief valve comprises a spring leaf, a spring support, a valve seat and a valve sealing piece, wherein the spring leaf approximately takes the shape of a long strip and is arranged on the valve seat; the valve sealing piece is arranged on a first through hole in the bottom of the valve seat; the lower part of the spring support pushes against the valve sealing piece; the upper part of the spring support is connected with a pressure spring; the upper part of the pressure spring pushes against a first end of the spring leaf; the first end of the spring leaf is provided with a second through hole; the lower part of the other end of the spring leaf pushes against the sealing piece; a pressure relief hole of an ascending oil pipe is pressed by the lower part of the valve sealing piece; a pressure relief oil pipe is communicated with an oil storage tank through a channel; and an oil pipe is communicated with a pressure relief hole in the bottom of the valve seat. According to the hydraulic pump, the hydraulic pump body is provided with the pressure relief valve and the pressure relief valve is provided with a two-way pressure relief channel; and the hydraulic pump has double pressure-relief functions and is simple and practical in structure.
Description
Technical field
The present invention relates to a kind of improvement of oil hydraulic pump, particularly a kind of oil hydraulic pump that can work long hours and have the double-direction relief protective function belongs to the hydraulic pressure installation technical field.
Background technique
At present, the military boat of charging, speedboat, civilian small-sized ship etc. all are employed in the hull rear end and establish outboard promotion equipment, abbreviate outboard machine as, and said outboard machine includes an oil hydraulic pump, and said oil hydraulic pump is used for the power that warps to some function block of outboard machine being provided; Common oil hydraulic pump in use along with the growth of operating time and the increase of oil pressure, damage and inoperable phenomenon of oil hydraulic pump often occur, for this reason, presses for a kind of oil hydraulic pump that can work long hours and have the decompression protection function of exploitation.
Summary of the invention
The present invention seeks to provides a kind of oil hydraulic pump that can work long hours and have the double-direction relief protective function for the deficiency that overcomes existing technology.
For achieving the above object, the technological scheme that the present invention adopts is: a kind of oil hydraulic pump comprises oil hydraulic pump body, Decompression valves; Said Decompression valves comprises spring sheet, spring support, valve seat, valve sealing element; Said spring sheet roughly is strip, is arranged on the valve seat; Said valve sealing element is arranged on first through hole on the valve seat bottom; Valve sealing element is withstood in the bottom of said spring support; The top of said spring support links to each other with pressure spring; First end of spring sheet is withstood on the top of said pressure spring; The first end of said spring sheet is provided with second through hole; Sealing is withstood in the other end bottom of said spring sheet; Rising oil pipe relief hole is pushed down in the Sealing bottom; Be provided with the pressure release oil pipe in the said oil hydraulic pump body; Said pressure release oil pipe communicates with oil storage tank through passage; Relief hole on said oil pipe and the valve seat bottom is communicated with.
Preferably, said Sealing is arranged on the rising oil pipe relief hole, seals.
Preferably, the bottom of said valve seat is provided with O shape circle.
Preferably, be provided with filter between said valve seat and the oil pipe.
Preferably, said Decompression valves passes through screw on the oil hydraulic pump body.
Because the utilization of technique scheme, the present invention compared with prior art has advantage:
Oil hydraulic pump of the present invention, the oil hydraulic pump body is provided with Decompression valves, and when the work of oil hydraulic pump forward, piston moves down, and compression is the interior hydraulic oil of cylinder down, reaches certain pressure, and valve sealing element is backed down, and pressure spring is compressed, and Decompression valves carries out pressure release; When the oil hydraulic pump reverse operation, move on the piston, the hydraulic oil of compression in the upper cylinder half reaches certain pressure, Sealing is backed down, Decompression valves carry out pressure release, the present invention has the double-direction relief function, and simple in structure, practicality.
Description of drawings
Below in conjunction with accompanying drawing technological scheme of the present invention is described further:
Accompanying drawing 2 is the partial enlarged drawing of oil hydraulic pump of the present invention;
Wherein: 1, screw; 2, spring sheet; 3, Sealing; 4, pressure spring; 5, spring support; 6, valve sealing element; 7, valve seat; 8, O shape circle; 9, filter; 10, oil hydraulic pump body; 11, rising oil pipe; 12, decline oil pipe.
Embodiment
Like accompanying drawing 1, the of the present invention a kind of oil hydraulic pump shown in 2, comprise oil hydraulic pump body 10, Decompression valves; Said Decompression valves comprises spring sheet 2, spring support 5, valve seat 7, valve sealing element 6; Said spring sheet 2 roughly is strip, is arranged on the valve seat 7; Said valve sealing element 6 is arranged on first through hole (not marking) on valve seat 7 bottoms; Valve sealing element 6 is withstood in the bottom of said spring support 5; The top of said spring support 5 links to each other with pressure spring 4; First end of spring sheet 2 is withstood on the top of said pressure spring 4; The first end of said spring sheet 2 is provided with second through hole (not marking); The other end of said spring sheet 2 is provided with Sealing 3; Rising oil pipe 11 relief holes are pushed down in said Sealing 3 bottoms; Be provided with rising oil pipe 11, decline oil pipe 12 in the said oil hydraulic pump body 10; Said rising oil pipe 11 is communicated with oil storage tank; Said decline oil pipe 12 is communicated with first through hole on valve seat 7 bottoms; Said Sealing 3 is arranged on the rising oil pipe 11, seals; The bottom of said valve seat 7 is provided with O shape circle 8; Be provided with filter 9 between said valve seat 7 and the decline oil pipe 12; Said Decompression valves is fixed on the oil hydraulic pump body 10 through screw 1.
The working principle of oil hydraulic pump of the present invention: when the work of oil hydraulic pump forward, piston moves down, and compression is the interior hydraulic oil of cylinder down, reaches certain pressure, and valve sealing element 6 is backed down, and pressure spring is compressed, and Decompression valves carries out pressure release; When the oil hydraulic pump reverse operation, move on the piston, the hydraulic oil of compression in the upper cylinder half reaches certain pressure, Sealing 3 is backed down, Decompression valves carry out pressure release, thereby the present invention program has the double-direction relief function, and simple in structure, practicality.
The foregoing description only is explanation technical conceive of the present invention and characteristics; Its purpose is to let the personage that is familiar with this technology can understand content of the present invention and implements; Can not limit protection scope of the present invention with this; All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (5)
1. an oil hydraulic pump comprises oil hydraulic pump body, Decompression valves; Said Decompression valves is characterized in that: comprise spring sheet, spring support, valve seat, valve sealing element; Said spring sheet roughly is strip, is arranged on the valve seat; Said valve sealing element is arranged on first through hole on the valve seat bottom; Valve sealing element is withstood in the bottom of said spring support; The top of said spring support links to each other with pressure spring; First end of spring sheet is withstood on the top of said pressure spring; The first end of said spring sheet is provided with second through hole; Sealing is withstood in the other end bottom of said spring sheet; Rising oil pipe relief hole is pushed down in the Sealing bottom; Be provided with the pressure release oil pipe in the said oil hydraulic pump body; Said pressure release oil pipe communicates with oil storage tank through passage; Relief hole on said oil pipe and the valve seat bottom is communicated with.
2. oil hydraulic pump according to claim 1 is characterized in that: said Sealing is arranged on the rising oil pipe relief hole, seals.
3. oil hydraulic pump according to claim 1 is characterized in that: the bottom of said valve seat is provided with O shape circle.
4. oil hydraulic pump according to claim 1 is characterized in that: be provided with filter between said valve seat and the oil pipe.
5. oil hydraulic pump according to claim 1 is characterized in that: said Decompression valves passes through screw on the oil hydraulic pump body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101397902A CN102705223A (en) | 2012-05-09 | 2012-05-09 | Hydraulic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101397902A CN102705223A (en) | 2012-05-09 | 2012-05-09 | Hydraulic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102705223A true CN102705223A (en) | 2012-10-03 |
Family
ID=46898221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101397902A Pending CN102705223A (en) | 2012-05-09 | 2012-05-09 | Hydraulic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102705223A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US953052A (en) * | 1909-07-02 | 1910-03-29 | Harry C Mccarty | Safety-valve. |
| EP0126368A2 (en) * | 1983-05-20 | 1984-11-28 | Trw Inc. | Hydraulic apparatus |
| US5678983A (en) * | 1993-05-07 | 1997-10-21 | Empresa Brasileira De Compressores S/A - Embraco | Discharge fluid actuated assist for opening an outlet reed valve of a hermetic compressor system |
| US5921274A (en) * | 1996-06-10 | 1999-07-13 | Corken, Inc. | Internal relief and bypass valve for pumps and piping systems |
| US6066013A (en) * | 1998-02-10 | 2000-05-23 | Honda Giken Kogyo Kabushiki Kaisha | Drain structure of an outboard motor |
| US20010025633A1 (en) * | 2000-03-31 | 2001-10-04 | Hideaki Takada | Gas-liquid separation device for internal combustion engine used in outboard motor |
| US20060258232A1 (en) * | 2005-05-13 | 2006-11-16 | Gongwer Calvin A | Safe efficient outboard motor assembly |
| CN202628497U (en) * | 2012-05-09 | 2012-12-26 | 苏州百胜动力机器有限公司 | Hydraulic pump |
-
2012
- 2012-05-09 CN CN2012101397902A patent/CN102705223A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US953052A (en) * | 1909-07-02 | 1910-03-29 | Harry C Mccarty | Safety-valve. |
| EP0126368A2 (en) * | 1983-05-20 | 1984-11-28 | Trw Inc. | Hydraulic apparatus |
| US5678983A (en) * | 1993-05-07 | 1997-10-21 | Empresa Brasileira De Compressores S/A - Embraco | Discharge fluid actuated assist for opening an outlet reed valve of a hermetic compressor system |
| US5921274A (en) * | 1996-06-10 | 1999-07-13 | Corken, Inc. | Internal relief and bypass valve for pumps and piping systems |
| US6066013A (en) * | 1998-02-10 | 2000-05-23 | Honda Giken Kogyo Kabushiki Kaisha | Drain structure of an outboard motor |
| US20010025633A1 (en) * | 2000-03-31 | 2001-10-04 | Hideaki Takada | Gas-liquid separation device for internal combustion engine used in outboard motor |
| US20060258232A1 (en) * | 2005-05-13 | 2006-11-16 | Gongwer Calvin A | Safe efficient outboard motor assembly |
| CN202628497U (en) * | 2012-05-09 | 2012-12-26 | 苏州百胜动力机器有限公司 | Hydraulic pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: Xushuguan Development Zone in Suzhou City, Jiangsu province 215000 Hong Kong Road No. 567 Yum Suzhou power machinery Limited by Share Ltd Applicant after: Suzhou Bai Sheng power machine Company Limited by Shares Address before: Wuzhong District Mudu town Jinfeng Road, Suzhou city Jiangsu province 215100 No. 18 Suzhou Yum Power Machine Co Ltd Applicant before: Suzhou Baisheng Power Machine Co., Ltd. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: SUZHOU BAISHENG MOTILITY MACHINERY CO., LTD. TO: SUZHOU PARSUN POWER MACHINE CO., LTD. |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121003 |