CN204041484U - The anti-water deprivation stress switch of a kind of self-priming pump - Google Patents
The anti-water deprivation stress switch of a kind of self-priming pump Download PDFInfo
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- CN204041484U CN204041484U CN201420488971.0U CN201420488971U CN204041484U CN 204041484 U CN204041484 U CN 204041484U CN 201420488971 U CN201420488971 U CN 201420488971U CN 204041484 U CN204041484 U CN 204041484U
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- underframe
- resistance
- electric capacity
- capacitance
- electrical source
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Abstract
The utility model relates to the anti-water deprivation stress switch of a kind of self-priming pump.This pressure switch comprises lower underframe, pressure bladder, bearing pin, spring, middle underframe, sensitive switch fixed plate, upper underframe and a control circuit; Lower underframe and middle underframe are connected, and it have a screw thread port; Middle underframe there is a port; Pressure bladder is by lower underframe and middle underframe compression fit, and its lower end surface communicates with the screw thread port of lower underframe, and upper-end surface communicates with the port of middle underframe; Bearing pin is placed in the port of middle underframe, and bearing pin and middle underframe form a sliding pair, and are placed in the upper-end surface of pressure bladder; Spring one end heads on bearing pin, and the other end heads on middle underframe; Upper underframe and middle underframe are connected; Sensitive switch fixed plate is placed in the hole of underframe, it has a sensitive switch, is arranged on sensitive switch fixed plate lower end surface, and faces bearing pin; Control circuit comprises capacitance-resistance step down type DC electrical source and starting mode of pump circuit.Use this pressure switch in water-stressed conditions anti-self-priming pump work long hours.
Description
Technical field
The utility model relates to a kind of pressure switch for water pump, the anti-water deprivation stress switch of especially a kind of self-priming pump.
Background technique
In family supplies water, often adopts and on self-priming pump, fill pressure switch achieve automation, when water tap is opened, the energising of pressure switch action water pump, when the faucet is turned off, hydraulic pressure increase in pressure switch place makes again pressure switch action water pump close.It is automatically realize by the pressure of water that pressure switch controls power on/off, but usually water source place lack of water, cause self-priming pump to work long hours, this work has a strong impact on the life-span of pressure switch and pump.
Summary of the invention
The purpose of this utility model be to provide a kind of can the pressure switch that works long hours of anti-self-priming pump in water-stressed conditions.
The utility model is achieved in that this pressure switch comprises lower underframe, pressure bladder, bearing pin, spring, middle underframe, sensitive switch fixed plate, upper underframe and a control circuit, described lower underframe and middle underframe are connected, and it have a screw thread port, described middle underframe there is a port, described pressure bladder is placed between lower underframe and middle underframe, and by lower underframe and middle underframe compression fit, its lower end surface communicates with the screw thread port of lower underframe, and upper-end surface communicates with the port of middle underframe, described bearing pin is placed in the port of middle underframe, and bearing pin and middle underframe form a sliding pair, and are placed in the upper-end surface of pressure bladder, described spring is placed in the port of middle underframe, and spring one end heads on bearing pin, and the other end heads on middle underframe, described upper underframe and middle underframe are connected, and it have a hole, described sensitive switch fixed plate is placed in the hole of underframe, and is connected with upper underframe, it has a sensitive switch, is arranged on sensitive switch fixed plate lower end surface, and faces bearing pin, described control circuit comprises the capacitance-resistance step down type DC electrical source of electric capacity C1, electric capacity C2, resistance R1, rectifier D1, voltage-stabiliser tube D2 composition, the starting mode of pump circuit of electric capacity C3, electric capacity C4, resistance R2, resistance R3, sensitive switch, NE555P timer, water pump relay K M and signal relay KM1 composition, resistance R1 in capacitance-resistance step down type DC electrical source and electric capacity C1 in parallel and one end access one of rectifier D1 and exchange incoming end, the other end accesses extraneous power supply, another interchange incoming end of rectifier D1 also accesses extraneous power supply, voltage-stabiliser tube D2 is in parallel with electric capacity C2, the positive pole of voltage-stabiliser tube D2 connects the positive DC output terminal of rectifier D1, and the negative pole of voltage-stabiliser tube D2 connects the negative DC output terminal of rectifier D1, electric capacity C3 in starting mode of pump circuit connects with resistance R2, wherein electric capacity C3 termination enters the negative pole of capacitance-resistance step down type DC electrical source, resistance R2 holds the reset pin 4 with water pump relay K M one end and NE555P timer, power pins 8 connects, and the positive pole of the normally-closed contact access capacitance-resistance step down type DC electrical source through sensitive switch, the other end of water pump relay K M is through the negative pole of the normally opened contact access capacitance-resistance step down type DC electrical source of signal relay KM1, electric capacity C3 and the branch of connecting of resistance R2 are accessed the trigger pin 2 of NE555P timer, threshold values pin 6, the branch of connecting of resistance R3 one end access electric capacity C3 and resistance R2, the other end is through the negative pole of the normally-closed contact access capacitance-resistance step down type DC electrical source of signal relay KM1, the grounding pin 1 of NE555P timer accesses the negative pole of capacitance-resistance step down type DC electrical source, the control pin 5 of NE555P timer accesses the negative pole of capacitance-resistance step down type DC electrical source through electric capacity C4, the output pin 3 of NE555P timer accesses the negative pole of capacitance-resistance step down type DC electrical source through signal relay KM1.
The utility model should be connected with self-priming pump when installing, and the break-make of water pump relay K M controls the break-make of self-priming pump power supply, and it has following several working method.
The first: is when water tap is opened, pump housing internal pressure reduces, namely in pressure switch, the screw thread passage port hydraulic pressure of lower underframe reduces, spring can push bearing pin and move down, to bearing pin and sensitive switch no conflict, normally-closed contact is in normally off, electric capacity C3 is in charged state, the voltage just having started electric capacity C3 two ends is zero, so that electric capacity C3 is low potential with the branch of connecting of resistance R2, the output pin 3 of timer NE555P is high petential, signal relay KM1 is energized, the normally-closed contact of signal relay KM1 disconnects, normally opened contact closes, water pump relay K M is energized, the power end energising of water pump, when electric capacity C3 is charged to a certain degree, the voltage at its two ends is elevated to a certain degree (this duration of charge, normally using in family under water should be completely satisfied, if water pump is also in energising, water source place lack of water is described), electric capacity C3 is made to be high petential with the branch of connecting of resistance R2, the output pin 3 of timer NE555P is low potential, signal relay KM1 power-off, the normally-closed contact of signal relay KM1 closes, normally opened contact disconnects, water pump relay K M power-off, the power end no electric circuit of water pump, now, the electricity that electric capacity C3 substitutes the bad for the good discharges through the normally-closed contact of resistance R3 and signal relay KM1, after electric discharge after a while, electric capacity C3 is made to be low potential with the branch of connecting of resistance R2, the output pin 3 of timer NE555P is high petential, signal relay KM1 is energized, the normally-closed contact of signal relay KM1 disconnects, normally opened contact closes, water pump relay K M is energized, the power end of water pump is energized again, work like this can prevent from working long hours in water-stressed conditions.
The second: when the faucet is turned off, in not lack of water situation, pump housing internal pressure increases, namely in pressure switch, the screw thread passage port hydraulic pressure of lower underframe increases, pressure bladder can push bearing pin and rise, and conflicts to bearing pin and sensitive switch, and sensitive switch normally-closed contact disconnects, water pump relay K M power-off, the power end no electric circuit of water pump.
The invention has the beneficial effects as follows: anti-self-priming pump works long hours in water-stressed conditions.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further illustrated.
Fig. 1 is the overall structure schematic diagram of the anti-water deprivation stress switch of a kind of self-priming pump of the utility model.
Fig. 2 is the control circuit wiring diagram of the anti-water deprivation stress switch of a kind of self-priming pump of the utility model.
Embodiment
Fig. 1 is the overall structure schematic diagram of the anti-water deprivation stress switch of a kind of self-priming pump of the utility model.Known by figure, this pressure switch comprises lower underframe 1, pressure bladder 2, bearing pin 3, spring 4, middle underframe 5, sensitive switch fixed plate 6, upper underframe 8 and a control circuit; Described lower underframe 1 is connected with middle underframe 5, it has a screw thread port 11; Described middle underframe 5 there is a port 10; Described pressure bladder 2 is placed between lower underframe 1 and middle underframe 5, and by lower underframe 1 and middle underframe 5 compression fit, its lower end surface communicates with the screw thread port 11 of lower underframe 1, and upper-end surface communicates with the port 10 of middle underframe 5; Described bearing pin 3 is placed in the port 10 of middle underframe 5, and bearing pin 3 and middle underframe 5 form a sliding pair, and are placed in the upper-end surface of pressure bladder 2; Described spring 4 is placed in the port 10 of middle underframe 5, and spring 4 one end heads on bearing pin 3, and the other end heads on middle underframe 5; Described upper underframe 8 is connected with middle underframe 5, it has a hole 9; Described sensitive switch fixed plate 6 is placed in the hole 9 of underframe 8, and is connected with upper underframe 8, it has a sensitive switch 7, is arranged on sensitive switch fixed plate 6 lower end surface, and faces bearing pin 3.
Fig. 2 is the control circuit wiring diagram of the anti-water deprivation stress switch of a kind of self-priming pump of the utility model.Known by figure, described control circuit comprises the capacitance-resistance step down type DC electrical source of electric capacity C1, electric capacity C2, resistance R1, rectifier D1, voltage-stabiliser tube D2 composition, the starting mode of pump circuit of electric capacity C3, electric capacity C4, resistance R2, resistance R3, sensitive switch 7, NE555P timer 12, water pump relay K M and signal relay KM1 composition, resistance R1 in capacitance-resistance step down type DC electrical source and electric capacity C1 in parallel and one end access one of rectifier D1 and exchange incoming end, the other end accesses extraneous power supply, another interchange incoming end of rectifier D1 also accesses extraneous power supply, voltage-stabiliser tube D2 is in parallel with electric capacity C2, the positive pole of voltage-stabiliser tube D2 connects the positive DC output terminal of rectifier D1, and the negative pole of voltage-stabiliser tube D2 connects the negative DC output terminal of rectifier D1, electric capacity C3 in starting mode of pump circuit connects with resistance R2, wherein electric capacity C3 termination enters the negative pole of capacitance-resistance step down type DC electrical source, resistance R2 holds the reset pin 4 with water pump relay K M one end and NE555P timer 12, power pins 8 connects, and the positive pole of the normally-closed contact access capacitance-resistance step down type DC electrical source through sensitive switch 7, the other end of water pump relay K M is through the negative pole of the normally opened contact access capacitance-resistance step down type DC electrical source of signal relay KM1, electric capacity C3 and the branch of connecting of resistance R2 are accessed the trigger pin 2 of NE555P timer 12, threshold values pin 6, the branch of connecting of resistance R3 one end access electric capacity C3 and resistance R2, the other end is through the negative pole of the normally-closed contact access capacitance-resistance step down type DC electrical source of signal relay KM1, the grounding pin 1 of NE555P timer 12 accesses the negative pole of capacitance-resistance step down type DC electrical source, the control pin 5 of NE555P timer 12 accesses the negative pole of capacitance-resistance step down type DC electrical source through electric capacity C4, the output pin 3 of NE555P timer 12 accesses the negative pole of capacitance-resistance step down type DC electrical source through signal relay KM1.
In addition to the implementation, the present invention also has other mode of executions.All employings are equal to the technological scheme of replacement or equivalent transformation one-tenth, all drop in the protection domain of application claims.
Claims (1)
1. the anti-water deprivation stress switch of self-priming pump, is characterized in that: this pressure switch comprises lower underframe, pressure bladder, bearing pin, spring, middle underframe, sensitive switch fixed plate, upper underframe and a control circuit, described lower underframe and middle underframe are connected, and it have a screw thread port, described middle underframe there is a port, described pressure bladder is placed between lower underframe and middle underframe, and by lower underframe and middle underframe compression fit, its lower end surface communicates with the screw thread port of lower underframe, and upper-end surface communicates with the port of middle underframe, described bearing pin is placed in the port of middle underframe, and bearing pin and middle underframe form a sliding pair, and are placed in the upper-end surface of pressure bladder, described spring is placed in the port of middle underframe, and spring one end heads on bearing pin, and the other end heads on middle underframe, described upper underframe and middle underframe are connected, and it have a hole, described sensitive switch fixed plate is placed in the hole of underframe, and is connected with upper underframe, it has a sensitive switch, is arranged on sensitive switch fixed plate lower end surface, and faces bearing pin, described control circuit comprises the capacitance-resistance step down type DC electrical source of electric capacity C1, electric capacity C2, resistance R1, rectifier D1, voltage-stabiliser tube D2 composition, the starting mode of pump circuit of electric capacity C3, electric capacity C4, resistance R2, resistance R3, sensitive switch, NE555P timer, water pump relay K M and signal relay KM1 composition, resistance R1 in capacitance-resistance step down type DC electrical source and electric capacity C1 in parallel and one end access one of rectifier D1 and exchange incoming end, the other end accesses extraneous power supply, another interchange incoming end of rectifier D1 also accesses extraneous power supply, voltage-stabiliser tube D2 is in parallel with electric capacity C2, the positive pole of voltage-stabiliser tube D2 connects the positive DC output terminal of rectifier D1, and the negative pole of voltage-stabiliser tube D2 connects the negative DC output terminal of rectifier D1, electric capacity C3 in starting mode of pump circuit connects with resistance R2, wherein electric capacity C3 termination enters the negative pole of capacitance-resistance step down type DC electrical source, resistance R2 holds the reset pin 4 with water pump relay K M one end and NE555P timer, power pins 8 connects, and the positive pole of the normally-closed contact access capacitance-resistance step down type DC electrical source through sensitive switch, the other end of water pump relay K M is through the negative pole of the normally opened contact access capacitance-resistance step down type DC electrical source of signal relay KM1, electric capacity C3 and the branch of connecting of resistance R2 are accessed the trigger pin 2 of NE555P timer, threshold values pin 6, the branch of connecting of resistance R3 one end access electric capacity C3 and resistance R2, the other end is through the negative pole of the normally-closed contact access capacitance-resistance step down type DC electrical source of signal relay KM1, the grounding pin 1 of NE555P timer accesses the negative pole of capacitance-resistance step down type DC electrical source, the control pin 5 of NE555P timer accesses the negative pole of capacitance-resistance step down type DC electrical source through electric capacity C4, the output pin 3 of NE555P timer accesses the negative pole of capacitance-resistance step down type DC electrical source through signal relay KM1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420488971.0U CN204041484U (en) | 2014-08-28 | 2014-08-28 | The anti-water deprivation stress switch of a kind of self-priming pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420488971.0U CN204041484U (en) | 2014-08-28 | 2014-08-28 | The anti-water deprivation stress switch of a kind of self-priming pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204041484U true CN204041484U (en) | 2014-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420488971.0U Expired - Fee Related CN204041484U (en) | 2014-08-28 | 2014-08-28 | The anti-water deprivation stress switch of a kind of self-priming pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204041484U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108988501A (en) * | 2018-07-12 | 2018-12-11 | 安徽锐能科技有限公司 | Wireless charging device for vehicle electronic device |
| CN110513303A (en) * | 2019-06-27 | 2019-11-29 | 赵华勇 | A kind of control circuit board of automatic self priming pump |
| CN111379691A (en) * | 2018-12-28 | 2020-07-07 | 佛山市沃联电气有限公司 | Diaphragm pressure boost self-priming integrated pump adaptive to water source |
-
2014
- 2014-08-28 CN CN201420488971.0U patent/CN204041484U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108988501A (en) * | 2018-07-12 | 2018-12-11 | 安徽锐能科技有限公司 | Wireless charging device for vehicle electronic device |
| CN111379691A (en) * | 2018-12-28 | 2020-07-07 | 佛山市沃联电气有限公司 | Diaphragm pressure boost self-priming integrated pump adaptive to water source |
| CN110513303A (en) * | 2019-06-27 | 2019-11-29 | 赵华勇 | A kind of control circuit board of automatic self priming pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141224 Termination date: 20150828 |
|
| EXPY | Termination of patent right or utility model |