CN201301798Y - Pressure regulating mechanism of high-pressure water pump - Google Patents
Pressure regulating mechanism of high-pressure water pump Download PDFInfo
- Publication number
- CN201301798Y CN201301798Y CNU2008201992184U CN200820199218U CN201301798Y CN 201301798 Y CN201301798 Y CN 201301798Y CN U2008201992184 U CNU2008201992184 U CN U2008201992184U CN 200820199218 U CN200820199218 U CN 200820199218U CN 201301798 Y CN201301798 Y CN 201301798Y
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- Prior art keywords
- pressure
- valve
- backwater
- pressure regulating
- seat
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- Expired - Lifetime
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Abstract
The utility model belongs to the technical field of pumps, in particular to a pressure regulating mechanism of a high-pressure water pump. A water inlet pipeline and a high-pressure pipeline are arranged on a water pump casing; a valve starting water channel is arranged on the high-pressure pipeline behind a water outlet valve to be communicated with the bottom part of a water return valve core; the push rod of the upper part of the water return valve core is propped against the bottom part of a water return valve; the upper part of the water return valve is communicated with the high-pressure pipeline; the lower part of the water return valve is pressed on a water return valve seat; the high-pressure pipeline can be communicated with the water inlet pipeline after the water return valve is opened; and the upper part of the water return valve is sequentially provided with a lower spring seat, a big pressure regulating spring, a small pressure regulating spring, an upper spring seat, a pressure regulating bolt and a pressure regulating handle, and the big pressure regulating spring and the small pressure regulating spring are sleeved from inside to outside. The utility model adopts the big pressure regulating spring and the small pressure regulating spring which are sleeved from inside to outside, so the pump body has compact structure; the sealing rings are arranged at the gaps between the parts gaps, so the sealing performance of the pump greatly improved; and the utility model improves the convenience of the operation and use of the pump, has high creativity and practicality, and is suitably popularized in and applied to pump products.
Description
Technical field:
The utility model belongs to the high-pressure water pump technical field, refers 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.
The model utility content:
The purpose of this utility model provides a kind of pressure-regulating device of high-pressure water pump of compact structure.
The utility model 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 utility model is:
1, the utility model uses the big or small pressure adjusting spring of inside and outside suit, makes the pump body structure compactness;
2, the gap of the utility model between each part is provided with seal ring, improved the sealability of pump greatly, improved the efficient of pump;
3, the utility model 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 utility model;
Fig. 2 is a working principle schematic representation of the present utility model.
Embodiment:
With specific embodiment the utility model 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 utility model 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 only is one of preferred embodiment of the present utility model; be not to limit practical range of the present utility model with this; so: all equivalences of doing according to shape of the present utility model, structure, principle change, and all should be covered by within the protection domain of the present utility model.
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: 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.
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 |
|---|---|---|---|
| CNU2008201992184U CN201301798Y (en) | 2008-11-17 | 2008-11-17 | Pressure regulating mechanism of high-pressure water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201992184U CN201301798Y (en) | 2008-11-17 | 2008-11-17 | Pressure regulating mechanism of high-pressure water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201301798Y true CN201301798Y (en) | 2009-09-02 |
Family
ID=41085423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201992184U Expired - Lifetime CN201301798Y (en) | 2008-11-17 | 2008-11-17 | Pressure regulating mechanism of high-pressure water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201301798Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101403395B (en) * | 2008-11-17 | 2011-01-12 | 浙江大农实业有限公司 | Pressure-regulating device of high-pressure water pump |
| CN108317273A (en) * | 2018-02-07 | 2018-07-24 | 浙江大农实业股份有限公司 | Pressure control type pressure regulation valve arrangement |
| 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 |
-
2008
- 2008-11-17 CN CNU2008201992184U patent/CN201301798Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101403395B (en) * | 2008-11-17 | 2011-01-12 | 浙江大农实业有限公司 | Pressure-regulating device of high-pressure water pump |
| CN108317273A (en) * | 2018-02-07 | 2018-07-24 | 浙江大农实业股份有限公司 | Pressure control type pressure regulation valve arrangement |
| CN108317273B (en) * | 2018-02-07 | 2023-10-24 | 浙江大农实业股份有限公司 | Pressure control formula air-vent valve structure |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090902 Effective date of abandoning: 20081117 |