CN101403395A - Pressure-regulating device of high-pressure water pump - Google Patents
Pressure-regulating device of high-pressure water pump Download PDFInfo
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- CN101403395A CN101403395A CNA200810136231XA CN200810136231A CN101403395A CN 101403395 A CN101403395 A CN 101403395A CN A200810136231X A CNA200810136231X A CN A200810136231XA CN 200810136231 A CN200810136231 A CN 200810136231A CN 101403395 A CN101403395 A CN 101403395A
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- backwater
- valve
- backwater valve
- pump
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Abstract
The invention belongs to the technology field of pumps, more particularly relates to a pressure regulating mechanism of a high-pressure pump; the pressure regulating mechanism of the high-pressure pump is provided with a water inlet pipeline and a high-pressure pipeline on a pump shell; an water channel of an opening valve, which is communicated with the bottom of a backwater valve core is arranged on the high-pressure pipeline at the back of a water outlet valve; a top rod on the upper part of the backwater valve core supports the bottom of a backwater valve; the upper part of the backwater valve is communicated with the high-pressure pipeline; the lower part of the backwater valve is pressed on a backwater valve seat; after the backwater valve is opened, the high-pressure pipeline can be communicated with the water inlet pipeline; a lower spring seat, a big pressure regulating spring and a small pressure regulating spring which are sleeved inside and outside, and an upper spring seat, a pressure regulating bolt and a pressure regulating handle are arranged on the upper part of the backwater valve in sequence. The mechanism uses the big pressure regulating spring and the small pressure regulating spring which are sleeved inside and outside, and therefore causes the pump body structure to be compact, greatly enhances the sealing performance of the pump as gaps among each part are provided with sealing rings, improves the convenience of the operation and use of the pump, has quite strong creativity and practicality, and is suitable to be popularized in and applied to the pump-typed products.
Description
Technical field:
The invention belongs to the high-pressure water pump technical field, refer in particular to pressure-regulating device of high-pressure water pump.
Background technique:
At present, in high-pressure water pump, in order to prevent that high-pressure water pump from use bringing damage because hydraulic pressure is too high in the pump to pump, in high-pressure water pump, all be provided with pressure-regulating device, to be used to control the rated working pressure or the maximum service pressure of high-pressure water pump, Security with the use of protection high-pressure water pump, high-pressure water pump adopts conical surface or arc surface sealing configuration, Sealing in conical surface or the arc surface sealing configuration is a specialized designs manufacturing, this sealing configuration finds to exist certain defective according to using for many years, the one, cause the internal leakage of pressure regulation overflow system easily, the 2nd, pressure regulation overflow system manufacture cost is higher; Simultaneously, the pressure-regulating device structure of the high-pressure water pump on the market is different, having has the pressure adjusting spring in the pressure-regulating device built-in, external is also arranged, set pressure adjusting spring is according to using needs, volume makes that more greatly the overall structure of high-pressure water pump is compact inadequately, and pump housing volume is big, carries, operates equal inconvenience.
Summary of the invention:
The pressure-regulating device of high-pressure water pump that the purpose of this invention is to provide a kind of compact structure.
The present invention is achieved in that pressure-regulating device of high-pressure water pump, water pump cover is provided with inlet pipeline and pressure duct, it is characterized in that: be provided with one on the pressure duct after flowing water Valve and open the valve water channel and be communicated with the bottom of backwater spool, the push rod on backwater spool top withstands on the bottom of backwater valve, the top of backwater valve is connected with pressure duct, the bottom of backwater valve is pressed on the backwater valve seat, backwater valve is opened the back pressure duct and can be connected with inlet pipeline, top at backwater valve is disposed with lower spring cup, the big or small pressure adjusting spring of inside and outside suit, upper spring seat, sheathed successively outward pressure regulating seat of regulator bolts, regulator bolts and adjusting pressuring handle.
Above-mentioned backwater valve is a steel ball.
Above-mentioned adjusting pressuring handle is hood-shaped knob style structure, also can be hood-shaped wrench-type structure.
Between above-mentioned flowing water Valve, backwater spool, backwater valve seat, pressure regulating seat and housing, be provided with the rubber seal of sealing usefulness, between described upper spring seat and pressure regulating seat, be provided with the rubber seal of sealing usefulness.
The outstanding compared to existing technology advantage of the present invention is:
1, the present invention uses the big or small pressure adjusting spring of inside and outside suit, makes the pump body structure compactness;
2, the gap of the present invention between each part is provided with seal ring, improved the sealability of pump greatly, improved the efficient of pump;
3, the present invention has reduced the manufacture cost of pump, has improved the convenience of manipulating of pump, has very strong creativeness and practicability.
Description of drawings:
Fig. 1 is a partial cutaway schematic of the present invention;
Fig. 2 is a working principle schematic representation of the present invention.
Embodiment:
With specific embodiment the present invention is further described below, referring to Fig. 1-2:
Pressure-regulating device of high-pressure water pump, water pump cover 21 is provided with inlet pipeline 9 and pressure duct 14, being provided with one on the pressure duct 14 after flowing water Valve 2 opens valve water channel 4 and is communicated with the bottom of backwater spool 8, the push rod on backwater spool 8 tops withstands on the bottom of backwater valve 5, the top of backwater valve 5 is connected with pressure duct 14, the bottom of backwater valve 5 is pressed on the backwater valve seat 6, backwater valve 5 is opened back pressure duct 14 and can be connected with inlet pipeline 9, be disposed with lower spring cup 11 on the top of backwater valve 5, the big pressure adjusting spring 12 and the ditty pressing spring 13 of inside and outside suit, upper spring seat 15, regulator bolts 19, regulator bolts 19 outer sheathed successively pressure regulating seat 18 and adjusting pressuring handles 20.
Above-mentioned backwater valve 5 is a steel ball.
Above-mentioned adjusting pressuring handle 20 is hood-shaped knob style structure, also can be hood-shaped wrench-type structure.
Between above-mentioned flowing water Valve 2 and housing 21, be provided with the rubber seal 3 of sealing usefulness, be provided with the rubber seal 7 of sealing usefulness between backwater spool 8 and the housing 21, be provided with the rubber seal 16 that is provided with sealing usefulness between rubber seal 10, pressure regulating seat 18 and the housing 21 that seals usefulness between backwater valve seat 6 and the housing 21, be provided with the rubber seal 17 of sealing usefulness between upper spring seat 15 and the pressure regulating seat 18.
When the fluid pressure in the pump housing is too high, be that the working pressure of liquid in the pump is when surpassing rated working pressure, highly pressurised liquid enters in the pressure regulation overflow system by pressure duct 14, because fluid pressure is higher, highly pressurised liquid backs down flowing water Valve 2, highly pressurised liquid enters by flowing water Valve 2 and opens in the valve water channel 4, highly pressurised liquid is from the lower space that opens valve water channel 4 and enter backwater spool 8, thereby highly pressurised liquid is with backwater spool 8 pushing tow upwards, backwater spool 8 in pushing tow upwards with backwater valve 5 jack-up upwards, make between backwater valve seat 6 and the backwater valve 5 was that the state that seals becomes open mode originally, highly pressurised liquid just enters in the inlet pipeline 9 by the gap of opening between backwater valve seat 6 and the backwater valve 5, thereby the liquid of overpressure is discharged, make under the pump internal pressure to lower, to guarantee the Security of pump work.
The present invention uses the big or small pressure adjusting spring of inside and outside suit, makes the pump body structure compactness; Gap between each part is provided with seal ring, has improved the sealability of pump greatly, has improved the efficient of pump; Reduced the manufacture cost of pump, improved the convenience of manipulating of pump, had very strong creativeness and practicability and be adapted at the pump series products and apply.
The foregoing description is one of preferred embodiment of the present invention only, is not to limit practical range of the present invention with this, so: all equivalences of doing according to shape of the present invention, structure, principle change, and all should be covered by within protection scope of the present invention.
Claims (4)
1, pressure-regulating device of high-pressure water pump, water pump cover is provided with inlet pipeline and pressure duct, it is characterized in that: a bottom UNICOM of opening valve water channel and backwater spool is set on the pressure duct after flowing water Valve, the push rod on backwater spool top withstands on the bottom of backwater valve, the top of backwater valve is connected with pressure duct, the bottom of backwater valve is pressed on the backwater valve seat, backwater valve is opened the back pressure duct and can be connected with inlet pipeline, top at backwater valve is disposed with lower spring cup, the big or small pressure adjusting spring of inside and outside suit, upper spring seat, sheathed successively outward pressure regulating seat of regulator bolts, regulator bolts and adjusting pressuring handle.
2, pressure-regulating device of high-pressure water pump according to claim 1 is characterized in that: described backwater valve is a steel ball.
3, pressure-regulating device of high-pressure water pump according to claim 1 is characterized in that: described adjusting pressuring handle is hood-shaped knob style structure, also can be hood-shaped wrench-type structure.
4, pressure-regulating device of high-pressure water pump according to claim 1, it is characterized in that: between described flowing water Valve, backwater spool, backwater valve seat, pressure regulating seat and housing, be provided with the rubber seal of sealing usefulness, between described upper spring seat and pressure regulating seat, be provided with the rubber seal of sealing usefulness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810136231XA CN101403395B (en) | 2008-11-17 | 2008-11-17 | Pressure-regulating device of high-pressure water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810136231XA CN101403395B (en) | 2008-11-17 | 2008-11-17 | Pressure-regulating device of high-pressure water pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101403395A true CN101403395A (en) | 2009-04-08 |
| CN101403395B CN101403395B (en) | 2011-01-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810136231XA Active CN101403395B (en) | 2008-11-17 | 2008-11-17 | Pressure-regulating device of high-pressure water pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN101403395B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758763A (en) * | 2014-01-02 | 2014-04-30 | 上海啡忆实业有限公司 | Pressure-variable water pump and application thereof |
| CN105351216A (en) * | 2015-10-21 | 2016-02-24 | 无锡阳工机械制造有限公司 | Maintenance technology of pressure pump |
| CN108317281A (en) * | 2018-02-26 | 2018-07-24 | 浙江大农实业股份有限公司 | The pressure-adjustable unloading valves of integrated pressure control |
| CN111927792A (en) * | 2020-09-04 | 2020-11-13 | 安徽莱恩电泵有限公司 | Pressure adjusting device of nuclear power plant-used primary loop emergency water-replenishing diesel engine pump set |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191218854A (en) * | 1912-08-16 | 1913-09-16 | Drysdale & Co Ltd | Improved Method & Apparatus for Raising Water & other Liquids by Means of Compressed Air or Steam. |
| FR2506399A1 (en) * | 1981-05-21 | 1982-11-26 | Framatome Sa | DEVICE FOR SEALING THE DRIVE SHAFT OF A HIGH PRESSURE FLUID PUMP |
| CN2204001Y (en) * | 1994-05-06 | 1995-07-26 | 山东省煤炭工业局 | Liquid withdrawing gun for external injection type single hydraulic prop |
| CN2308731Y (en) * | 1997-04-08 | 1999-02-24 | 山东潍坊奥潍机械股份有限公司 | Hydraulic end of reciprocating high pressure water filling pump |
| CN101135302B (en) * | 2007-09-20 | 2011-06-08 | 宁波裕隆汽车制泵有限公司 | Plastic high-pressure plunger pump |
| CN201301798Y (en) * | 2008-11-17 | 2009-09-02 | 浙江大农实业有限公司 | Pressure regulating mechanism of high-pressure water pump |
-
2008
- 2008-11-17 CN CN200810136231XA patent/CN101403395B/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758763A (en) * | 2014-01-02 | 2014-04-30 | 上海啡忆实业有限公司 | Pressure-variable water pump and application thereof |
| CN105351216A (en) * | 2015-10-21 | 2016-02-24 | 无锡阳工机械制造有限公司 | Maintenance technology of pressure pump |
| CN108317281A (en) * | 2018-02-26 | 2018-07-24 | 浙江大农实业股份有限公司 | The pressure-adjustable unloading valves of integrated pressure control |
| CN108317281B (en) * | 2018-02-26 | 2023-10-27 | 浙江大农实业股份有限公司 | Pressure-regulating unloading valve with integrated pressure control |
| CN111927792A (en) * | 2020-09-04 | 2020-11-13 | 安徽莱恩电泵有限公司 | Pressure adjusting device of nuclear power plant-used primary loop emergency water-replenishing diesel engine pump set |
| CN111927792B (en) * | 2020-09-04 | 2024-05-14 | 安徽莱恩电泵有限公司 | Pressure regulating device of primary loop emergency water supplementing diesel engine pump set for nuclear power plant |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101403395B (en) | 2011-01-12 |
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| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG DANAU INDUSTRIES CO., LTD. Free format text: FORMER NAME: ZHEJIANG DANONG INDUSTRIAL CO., LTD. |
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| CP03 | Change of name, title or address |
Address after: 318050, Zhejiang Province, Luqiao District, Taizhou Province town of clouds under the side street Patentee after: ZHEJIANG DANAU INDUSTRIES CO., LTD. Address before: Taizhou City, Zhejiang province 318056 Hengjie Town Industrial Zone Luqiao District Zhejiang Danong Industrial Co Ltd Patentee before: Zhejiang Danau Machinery Co., Ltd. |