CN2859002Y - Diaphragm pump capable of limiting and adjusting pressure - Google Patents
Diaphragm pump capable of limiting and adjusting pressure Download PDFInfo
- Publication number
- CN2859002Y CN2859002Y CN 200520064040 CN200520064040U CN2859002Y CN 2859002 Y CN2859002 Y CN 2859002Y CN 200520064040 CN200520064040 CN 200520064040 CN 200520064040 U CN200520064040 U CN 200520064040U CN 2859002 Y CN2859002 Y CN 2859002Y
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- pressure
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Abstract
The utility model relates to a diaphragm pump capable of limiting and adjusting pressure under the variation of tap water pressure to provide stable output pressure. The diaphragm pump comprises a drive device, a pump body, and a fixed seat docking the drive device with the pump body. Said pump body comprises a housing, a pump inlet and outlet disposed on the housing, a valve plate mounted inside the housing, a pumping element, a diaphragm, an inlet valve and a outlet valve mounted on the valve plate for control of fluid inward and outward, a low-pressure inlet chamber inside the pump body, a pumping chamber, and a high-pressure outlet chamber. Said housing is provided with an overflow pressure limiting and adjusting device, which consists of a chamber on the housing, an adjusting element fitted on the upper end of the chamber, an elastic sealing piece disposed at the bottom, an adjusting spring mounted between the adjusting element and the elastic sealing piece, and a ring aperture disposed at the bottom of the elastic sealing piece.
Description
Technical field
But the utility model relates to a kind of pressure limiting pressure regulation diaphragm pump.
Background technique
Serious day by day along with water pollution, the raising of people's living standard, to the attention of health, people are also more and more higher to the requirement of potable water.So, various water purification products gradually enter into places such as family, office, factory, the application of the water purification product of especially reverse osmosis, ultrafiltration, nanofiltration type is maximum, and the extensive use of these water purification products allows people under the situation of pollution grows worse, still can use water healthy, safety.
Simultaneously, the water purification product requirement of types such as reverse osmosis, ultrafiltration, nanofiltration has certain water feeding pressure, but, the pressure of supply water of municipal tap water is also unstable, most of place, most of the time pressure do not reach requirement, for this reason, the water purification product of these types has been installed and used a kind of diaphragm pump and has been used for supercharging.Ordinary circumstance, this water pump have a characteristic to be exactly, and along with the increase of water feeding pressure, the also corresponding equal proportion of its delivery pressure increases, and this specific character is an advantage in some occasion, but is very big defective for the water purification product.This is to use in certain pressure range because of reverse osmosis, ultrafiltration, the requirement of nanofiltration element, and hypotony does not then reach usage requirement, overpressure, and the life-span of element is subjected to tangible influence, and the life-span is decay fast.In addition, overpressure because the main parts size of diaphragm pump is plastics, under too high pressure effect, is easy to aging fatigue failure.
The diaphragm pump of known technology generally includes drive unit, the pump housing, and pump housing part includes housing (perhaps being called the pump head lid) at least, housing is provided with pump inlet, and outlet is installed on the valve plate in the housing, pumping element, barrier film, fixed base and the connection fastenings that is connected and fixed these elements; The inlet valve of control fluid turnover also is housed on valve plate, outlet valve, and by spring, the overflow Decompression valves that spool is formed.In the pump housing, form a low pressure inlet chamber, at least one pumping chamber, high-pressure outlet chamber.When the pressure in the pumping chamber acquires a certain degree when above, act on the pressure of the pressure of spool greater than spring, fluid enters the low pressure inlet chamber from the pumping chamber, plays the purpose of pressure release pressure limiting.
But on reality was used, the effect of pressure release pressure limiting was inaccessible, very undesirable, and this is because structural reason, and spring is uncontrollable reason decision.
The model utility content
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art and but a kind of pressure limiting pressure regulation diaphragm pump that stable output pressure is provided under the situation that tap water pressure changes is provided.
The purpose of this utility model can reach by following measure:
But this pressure limiting pressure regulation diaphragm pump, comprise: drive unit, the pump housing and the fixed base that drive unit is docked with the pump housing, the described pump housing includes housing, the pump inlet that housing is provided with, pump discharge, be installed on the valve plate in the housing, pumping element, barrier film, the inlet valve of control fluid turnover is housed on the valve plate, outlet valve, the low pressure inlet chamber that forms in the pump housing, the pumping chamber, the high-pressure outlet chamber, its special way is: described housing is provided with overflow pressure limiting regulator, and this overflow pressure limiting regulator is by a cavity that forms on the housing, the regulating element of this cavity upper end suit, the elastomer seal that the bottom is provided with, the Regulation spring that is equipped with between regulating element and the elastomer seal, the annular distance that the elastomer seal bottom is provided with is formed.
The purpose of this utility model can also reach by following measure:
Described annular distance by outer annular distance, insert in the outer annular distance and the endoporus of an end parts parallel of an end and outer annular distance is formed.
Interior aperture relief hole in the described annular distance is communicated with the low pressure inlet chamber; Outer annular distance in the described annular distance is communicated with the high-pressure outlet chamber.
Interior aperture relief hole in the described annular distance is communicated with outward with pump; Outer annular distance in the described annular distance is communicated with the high-pressure outlet chamber.
Endoporus in the described annular distance is communicated with the high-pressure outlet chamber; Outer shroud aperture relief hole in the described annular distance is communicated with the low pressure inlet chamber.
Endoporus in the described annular distance is communicated with the high-pressure outlet chamber; Outer shroud aperture relief hole in the described annular distance is communicated with outward with pump.
Described relief hole is communicated with pump inlet by the road.
Be respectively equipped with spring seat between described Regulation spring and regulating element and the elastomer seal top.
Described regulating element by the fixed cover on the housing, wear fixed cover and the adjusting element that stretches in the fixed cover cavity is formed.
This reality has the novel following advantage that has compared to existing technology:
1, install and use simple and convenient.
2, pressure limiting pressure regulation reliable effect, the voltage limiting value wave range is little, and can not produce abnormal sound.
3, Applicable scope is extensive, can adapt to the water inlet water source of different hydraulic pressure.
4, economy, cost is low, can popularization and application.
Description of drawings
Fig. 1 is first kind of embodiment's of the utility model a structural representation.
Fig. 2 is that the A-A of Fig. 1 is to sectional view.
Fig. 3 is that the B-B of Fig. 1 is to sectional drawing.
Fig. 4 is second kind of embodiment's of the utility model a structural representation.
Fig. 5 is that the A-A of Fig. 4 is to sectional view.
Fig. 6 is the third embodiment's of the utility model a structural representation.
Fig. 7 is that the A-A of Fig. 6 is to sectional view.
Fig. 8 is the 4th kind of embodiment's of the utility model a structural representation.
Fig. 9 is that the A-A of Fig. 8 is to sectional view.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1, Fig. 2, Fig. 3 show first embodiment of the present utility model.
But be somebody's turn to do pressure limiting pressure regulation diaphragm pump, comprise: drive unit 1, the pump housing 2, and the pump housing 2 includes housing (perhaps being called the pump head lid) 3 at least, and housing 3 is provided with pump inlet 31, outlet 32, be installed on the valve plate 4 in the housing 3, pumping element 5, barrier film 6, fixed base 7 and the connection fastenings that is connected and fixed these elements; The inlet valve 41 of control fluid turnover also is housed, outlet valve 42 on valve plate 4.In the pump housing 3, form a low pressure inlet chamber 21, pumping chamber 22, high-pressure outlet chamber 23.One overflow pressure limiting regulator 33 is housed on the described housing 3, and this overflow pressure limiting regulator 33 includes adjusting element 331, spring seat 332, Regulation spring 333, elastomer seal 334, fixed cover 335, endoporus 336, outer annular distance 337.Described elastomer seal 334 can be to have certain flexible plastics, also can be rubber, it is except that the outer ring is fixed, inner ring is owing to have elasticity, and it is movable to allow in elastic range, its role is under setting pressure, endoporus 336 and 337 sealings of outer annular distance are separated, on setting pressure, resiliently deformable under fluid pressure action is communicated with endoporus 336 and outer annular distance 337.Endoporus 336 is positioned at an end parts parallel in 337, two holes of outer annular distance, relies on elastomer seal 334 to realize switching.For realizing the purpose of pressure release, pressure limiting, pressure regulation, outer annular distance 337 is communicated with high-pressure outlet chamber 23 by relief hole 231, and at this moment, endoporus 336 is communicated with outward with pump by relief hole 34.Relief hole 34 can directly discharge the fluid that releases, and also can be connected to by the fluid that pipeline will release on the pipeline related with pump inlet 31.
Using process: when high-pressure outlet chamber 23 internal pressures reached certain value, the pressure that acts on elastomer seal 334 was during greater than the setting power of Regulation spring 333, and elastomer seal 334 flicks, and endoporus 336 is communicated with outer annular distance 337, reaches the purpose of pressure release pressure limiting.The degree that elastomer seal 334 flicks is decided according to the pressure in the high-pressure outlet chamber 23, and pressure is high more, flick big more, passage is also big, and the flow of pressure release is also big, so, the pressure in high-pressure outlet chamber 23 rises limited, the wave range of pressure is very little, and the effect of pressure limiting is very good, and, can regulate the precompression of Regulation spring 333 by adjusting element 331, thereby realize the purpose of pressure regulation.
Fig. 4, Fig. 5 show second embodiment of the present utility model.
But be somebody's turn to do pressure limiting pressure regulation diaphragm pump, comprise: drive unit 1, the pump housing 2, and pump housing part includes housing (perhaps being called the pump head lid) 3 at least, and housing 3 is provided with pump inlet 31, outlet 32, be installed on the valve plate 4 in the housing 3, pumping element 5, barrier film 6, fixed base 7 and the connection fastenings that is connected and fixed these elements; The inlet valve 41 of control fluid turnover also is housed, outlet valve 42 on valve plate 4.In the pump housing, form a low pressure inlet chamber 21, pumping chamber 22, high-pressure outlet chamber 23.Be provided with an overflow pressure limiting regulator 33 on housing 3, this overflow pressure limiting regulator 33 includes adjusting element 331, spring seat 338, Regulation spring 333, elastomer seal 334, fixed cover 335, endoporus 336, outer annular distance 337.Described elastomer seal 334 is can be to have certain flexible plastics, also can be rubber, it is except that the outer ring is fixed, inner ring is owing to have elasticity, and it is movable to allow in elastic range, its role is under setting pressure, endoporus 336 and 337 sealings of outer annular distance are separated, on setting pressure, resiliently deformable under fluid pressure action is communicated with endoporus 336 and outer annular distance 337.Endoporus 336 is positioned at an end parts parallel in 337, two holes of outer annular distance, relies on elastomer seal 334 to realize switching.For realizing the purpose of pressure release, pressure limiting, pressure regulation, endoporus 336 is communicated with high-pressure outlet chamber 23, and outer annular distance 337 is communicated with outward with pump by a relief hole 34.
Using process: when high-pressure outlet chamber 23 internal pressures reach certain value, the pressure that acts on elastomer seal 334 is during greater than the setting power of Regulation spring 333, elastomer seal 334 flicks, endoporus 336 is communicated with outer annular distance 337, fluid in the high-pressure outlet chamber 23 flows to endoporus 337 by relief hole 231, annular distance 336 outside after endoporus 337 pressure releases, flowing to again, and then outside relief hole 34 efflux pumps, thus reach the purpose of pressure release pressure limiting.Can regulate the precompression of Regulation spring 333 by adjusting element 331, thereby realize the purpose of pressure regulation.
Fig. 6, Fig. 7 show the 3rd embodiment of the present utility model.
But be somebody's turn to do pressure limiting pressure regulation diaphragm pump, comprise: drive unit 1, the pump housing 2, and the pump housing 2 includes housing (perhaps being called the pump head lid) 3 at least, and housing is provided with pump inlet 31, outlet 32, be installed on the valve plate 4 in the housing 3, pumping element 5, barrier film 6, fixed base 7 and the connection fastenings that is connected and fixed these elements; The inlet valve 41 of control fluid turnover also is housed, outlet valve 42 on valve plate 4.In the pump housing 2, form a low pressure inlet chamber 21, pumping chamber 22, high-pressure outlet chamber 23.Housing 3 is provided with an overflow pressure limiting regulator 33, and this overflow pressure limiting regulator 33 includes regulating element 339, Regulation spring 333, elastomer seal 334, endoporus 336, outer annular distance 337.Described elastomer seal 334 is can be to have certain flexible plastics, also can be rubber, it is except that the outer ring is fixed, inner ring is owing to have elasticity, and it is movable to allow in elastic range, its role is under setting pressure, endoporus 336 and 337 sealings of outer annular distance are separated, on setting pressure, resiliently deformable under fluid pressure action is communicated with endoporus 336 and outer annular distance 337.Endoporus 336 is positioned at an end parts parallel in 337, two holes of outer annular distance, relies on elastomer seal 334 to realize switching.For realizing the purpose of pressure release, pressure limiting, pressure regulation, outer annular distance 337 has relief hole 231 to be communicated with high-pressure outlet chamber 23, and endoporus 336 is communicated with low pressure inlet chamber 21 by a relief hole 211.
Using process: when high-pressure outlet chamber 23 internal pressures reach certain value, the pressure that acts on elastomer seal 334 is during greater than the setting power of Regulation spring 333, elastomer seal 334 flicks, endoporus 336 is communicated with outer annular distance 337, fluid in the high-pressure outlet chamber 23 flows to outer annular distance 337 by relief hole 231, through outside flow to endoporus 336 again after annular distance 337 pressure releases, and then flow to low pressure inlet chamber 21, thereby reach the purpose of pressure release pressure limiting from relief hole 211.Can regulate the precompression of Regulation spring 333 by regulating element 339, thereby realize the purpose of pressure regulation.
Fig. 8, Fig. 9 show the 4th embodiment of the present utility model.
But be somebody's turn to do pressure limiting pressure regulation diaphragm pump, comprise: drive unit 1, the pump housing 2, and the pump housing 2 includes housing (perhaps being called the pump head lid) 3 at least, and housing is provided with pump inlet 31, outlet 32, be installed on the valve plate 4 in the housing 3, pumping element 5, barrier film 6, fixed base 7 and the connection fastenings that is connected and fixed these elements; The inlet valve 41 of control fluid turnover also is housed, outlet valve 42 on valve plate 4.In the pump housing 2, form a low pressure inlet chamber 21, pumping chamber 22, high-pressure outlet chamber 23.Housing 3 is provided with an overflow pressure limiting regulator 33, and this overflow pressure limiting regulator 33 includes adjusting element 331, spring seat 332, Regulation spring 333, spring seat 338, elastomer seal 334, fixed cover 335, endoporus 336, outer annular distance 337.Described elastomer seal 334 is can be to have certain flexible plastics, also can be rubber, it is except that the outer ring is fixed, inner ring is owing to have elasticity, and it is movable to allow in elastic range, its role is under setting pressure, endoporus 336 and 337 sealings of outer annular distance are separated, on setting pressure, resiliently deformable under fluid pressure action is communicated with endoporus 336 and outer annular distance 337.Endoporus 336 is positioned at an end parts parallel in 337, two holes of outer annular distance, relies on elastomer seal 334 to realize switching.For realizing the purpose of pressure release, pressure limiting, pressure regulation, endoporus 336 is communicated with high-pressure outlet chamber 23, and outer annular distance 337 is communicated with low pressure inlet chamber 21 by a relief hole 211.
Using process: when high-pressure outlet chamber 23 internal pressures reach certain value, the pressure that acts on elastomer seal 334 is during greater than the setting power of Regulation spring 333, elastomer seal 334 flicks, endoporus 336 is communicated with outer annular distance 337, fluid in the high-pressure outlet chamber 23 flows to endoporus 336 by relief hole 231, annular distance 337 outside after endoporus 335 pressure releases, flowing to again, and then flow to low pressure inlet chamber 21 from relief hole 211, thus reach the purpose of pressure release pressure limiting.Can regulate the precompression of Regulation spring 333 by adjusting element 331, thereby realize the purpose of pressure regulation.
The above only is preferred embodiment of the present utility model, and all equalizations of being done according to the utility model claim scope change and modify, and all should belong to the covering scope of the utility model claim.
Claims (9)
1, but a kind of pressure limiting pressure regulation diaphragm pump, comprise: drive unit, the pump housing and the fixed base that drive unit is docked with the pump housing, the described pump housing includes housing, the pump inlet that housing is provided with, pump discharge, be installed on the valve plate in the housing, pumping element, barrier film, the inlet valve of control fluid turnover is housed on the valve plate, outlet valve, the low pressure inlet chamber that forms in the pump housing, the pumping chamber, the high-pressure outlet chamber is characterized in that: described housing is provided with overflow pressure limiting regulator, and this overflow pressure limiting regulator is by a cavity that forms on the housing, the regulating element of this cavity upper end suit, the elastomer seal that the bottom is provided with, the Regulation spring that is equipped with between regulating element and the elastomer seal, the annular distance that the elastomer seal bottom is provided with is formed.
But 2, pressure limiting pressure regulation diaphragm pump according to claim 1 is characterized in that: described annular distance by outer annular distance, insert in the outer annular distance and the endoporus of an end parts parallel of an end and outer annular distance is formed.
But 3, pressure limiting pressure regulation diaphragm pump according to claim 2 is characterized in that: the interior aperture relief hole in the described annular distance is communicated with the low pressure inlet chamber; Outer annular distance in the described annular distance is communicated with the high-pressure outlet chamber.
But 4, pressure limiting pressure regulation diaphragm pump according to claim 2 is characterized in that: the interior aperture relief hole in the described annular distance is communicated with outward with pump; Outer annular distance in the described annular distance is communicated with the high-pressure outlet chamber.
But 5, pressure limiting pressure regulation diaphragm pump according to claim 2, it is characterized in that: the endoporus in the described annular distance is communicated with the high-pressure outlet chamber; Outer shroud aperture relief hole in the described annular distance is communicated with the low pressure inlet chamber.
But 6, pressure limiting pressure regulation diaphragm pump according to claim 2, it is characterized in that: the endoporus in the described annular distance is communicated with the high-pressure outlet chamber; Outer shroud aperture relief hole in the described annular distance is communicated with outward with pump.
7, but according to claim 4 or 6 described pressure limiting pressure regulation diaphragm pumps, it is characterized in that: described relief hole is communicated with pump inlet by the road.
But 8, pressure limiting pressure regulation diaphragm pump according to claim 1 is characterized in that: be respectively equipped with spring seat between described Regulation spring and regulating element and the elastomer seal top.
But 9, pressure limiting pressure regulation diaphragm pump according to claim 1 is characterized in that: described regulating element by the fixed cover on the housing, wear fixed cover and the adjusting element that stretches in the fixed cover cavity is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520064040 CN2859002Y (en) | 2005-09-05 | 2005-09-05 | Diaphragm pump capable of limiting and adjusting pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520064040 CN2859002Y (en) | 2005-09-05 | 2005-09-05 | Diaphragm pump capable of limiting and adjusting pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2859002Y true CN2859002Y (en) | 2007-01-17 |
Family
ID=37611861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520064040 Expired - Lifetime CN2859002Y (en) | 2005-09-05 | 2005-09-05 | Diaphragm pump capable of limiting and adjusting pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2859002Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221380A (en) * | 2015-09-29 | 2016-01-06 | 苏州巧泰精密机械有限公司 | Metering pump |
| CN106837626A (en) * | 2017-03-20 | 2017-06-13 | 瑞安市铭硕汽配有限公司 | A kind of fuel pressure regulator |
| CN107725341A (en) * | 2017-11-29 | 2018-02-23 | 山东博世机械有限公司 | A kind of low energy consumption automatic steady die mould membrane pump |
| CN109838366A (en) * | 2019-01-25 | 2019-06-04 | 邹昌红 | A kind of diaphragm booster pump of belt switch and the adjustment structure of protection |
| CN110159515A (en) * | 2018-01-09 | 2019-08-23 | 宁波捷尔天电气有限公司 | Diaphragm pump |
| CN110248579A (en) * | 2017-02-09 | 2019-09-17 | 雀巢产品有限公司 | Diaphragm pump for beverage preparation module |
-
2005
- 2005-09-05 CN CN 200520064040 patent/CN2859002Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221380A (en) * | 2015-09-29 | 2016-01-06 | 苏州巧泰精密机械有限公司 | Metering pump |
| CN110248579A (en) * | 2017-02-09 | 2019-09-17 | 雀巢产品有限公司 | Diaphragm pump for beverage preparation module |
| CN110248579B (en) * | 2017-02-09 | 2021-10-01 | 雀巢产品有限公司 | Diaphragm pump for a beverage preparation module |
| CN106837626A (en) * | 2017-03-20 | 2017-06-13 | 瑞安市铭硕汽配有限公司 | A kind of fuel pressure regulator |
| CN107725341A (en) * | 2017-11-29 | 2018-02-23 | 山东博世机械有限公司 | A kind of low energy consumption automatic steady die mould membrane pump |
| CN107725341B (en) * | 2017-11-29 | 2023-10-03 | 山东中聚电器有限公司 | Low-energy-consumption automatic pressure-stabilizing diaphragm pump |
| CN110159515A (en) * | 2018-01-09 | 2019-08-23 | 宁波捷尔天电气有限公司 | Diaphragm pump |
| CN109838366A (en) * | 2019-01-25 | 2019-06-04 | 邹昌红 | A kind of diaphragm booster pump of belt switch and the adjustment structure of protection |
| CN109838366B (en) * | 2019-01-25 | 2024-04-12 | 邹昌红 | Diaphragm booster pump with switch and protective adjusting structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150905 Granted publication date: 20070117 |
|
| EXPY | Termination of patent right or utility model |