CN204041409U - A kind of water pump water shortage protective device - Google Patents
A kind of water pump water shortage protective device Download PDFInfo
- Publication number
- CN204041409U CN204041409U CN201420488584.7U CN201420488584U CN204041409U CN 204041409 U CN204041409 U CN 204041409U CN 201420488584 U CN201420488584 U CN 201420488584U CN 204041409 U CN204041409 U CN 204041409U
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- CN
- China
- Prior art keywords
- upper bracket
- support frame
- resistance
- lower support
- electric capacity
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- Expired - Fee Related
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Abstract
The utility model relates to a kind of water pump water shortage protective device.This water pump water shortage protective device comprises connecting tube, lower support frame, push rod, pressure bladder, upper bracket, sealed pipe and a control circuit; Connecting tube there are import and export; Lower support frame and connecting tube are connected, and it have a port; Push rod is placed in the port of lower support frame, and push rod and lower support frame form a sliding pair, and heads on the lower end surface of pressure bladder; Pressure bladder is placed between lower support frame and upper bracket, and by lower support frame and upper bracket compression fit, its lower end surface contacts with push rod, and upper-end surface communicates with the hole of upper bracket; Porose on upper bracket, insulated with the import and export on connecting tube by pressure bladder and sealed pipe sealing in hole; Sealed pipe is connected on connecting tube and upper bracket, and it has through hole; Sensitive switch on control circuit is connected in the hole of upper bracket; Described control circuit comprises capacitance-resistance step down type DC electrical source and starting mode of pump circuit.Use this device in water-stressed conditions can automatic closing water pump.
Description
Art
The utility model relates to a kind of protecting device for water pump, specifically a kind of water pump water shortage protective device.
Background technique
Water pump is when drainage works, and when the water in pond or well is taken out to the greatest extent, water pump can lack of water dally, and not only wastes electricity, and greatly affects the life-span of water pump.
Summary of the invention
The purpose of this utility model is to provide a kind of water pump water shortage protective device, in water-stressed conditions, and automatic closing water pump.
The technical solution adopted in the utility model: this water pump water shortage protective device comprises connecting tube, lower support frame, push rod, pressure bladder, upper bracket, sealed pipe and a control circuit, described connecting tube there are import and export, described lower support frame and connecting tube are connected, and it have a port, described push rod is placed in the port of lower support frame, and push rod and lower support frame form a sliding pair, and heads on the lower end surface of pressure bladder, described pressure bladder is placed between lower support frame and upper bracket, and by lower support frame and upper bracket compression fit, its lower end surface contacts with push rod, and upper-end surface communicates with the hole of upper bracket, described upper bracket is connected on lower support frame, porose on it, is insulated with the import and export on connecting tube by pressure bladder and sealed pipe sealing in hole, described sealed pipe is connected on connecting tube and upper bracket, and it has through hole, sensitive switch of often opening on described control circuit is connected in the hole of upper bracket, and the actuation button often driving sensitive switch faces pressure bladder, and the line often driving sensitive switch is connected with control circuit by the through hole on sealed pipe, described control circuit comprise electric capacity C1, electric capacity C2, resistance R1, rectifier D1, voltage-stabiliser tube D2 form capacitance-resistance step down type DC electrical source, electric capacity C3, electric capacity C4, resistance R2, often open sensitive switch, NE555P timer and relay K M composition starting mode of pump circuit, 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 and accesses capacitance-resistance step down type DC electrical source, wherein electric capacity C3 termination enters the negative pole of capacitance-resistance step down type DC electrical source, resistance R2 termination enters the positive pole of capacitance-resistance step down type DC electrical source, electric capacity C3 is accessed with the branch of connecting of resistance R2 and often opens a contact of sensitive switch and the trigger pin 2 of NE555P timer, threshold values pin 6, often open the negative pole of another contact access capacitance-resistance step down type DC electrical source of sensitive switch, the reset pin 4 of NE555P timer, power pins 8 all accesses the positive pole of capacitance-resistance step down type DC electrical source, 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 relay K M.
The beneficial effects of the utility model: in water-stressed conditions, automatic closing water pump.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further described.
Fig. 1 is the overall structure schematic diagram of a kind of water pump water shortage protective device of the utility model.
Fig. 2 is the control circuit wiring diagram of a kind of water pump water shortage protective device of the utility model.
Embodiment
Fig. 1 represents the overall structure schematic diagram of a kind of water pump water shortage protective device of the utility model.Known by figure, this water pump water shortage protective device comprises connecting tube 1, lower support frame 2, push rod 4, pressure bladder 5, upper bracket 6, sealed pipe 8 and a control circuit; Described connecting tube 1 there are import and export, for connecting the outlet pipe 10 of water pump; Described lower support frame 2 is connected with connecting tube 1, it has a port 3; Described push rod 4 is placed in the port 3 of lower support frame 2, and push rod 4 and lower support frame 2 form a sliding pair, and head on the lower end surface of pressure bladder 5; Described pressure bladder 5 is placed between lower support frame 2 and upper bracket 6, and by lower support frame 2 and upper bracket 6 compression fit, its lower end surface contacts with push rod 4, and upper-end surface communicates with the hole 11 of upper bracket 6; Described upper bracket 6 is connected on lower support frame 2, and on it porose 11, hole 11 is sealed by pressure bladder 5 and sealed pipe 8 insulate with the import and export on connecting tube 1; Described sealed pipe 8 is connected on connecting tube 1 and upper bracket 6, it has through hole 7; Sensitive switch 9 of often opening on described control circuit is connected in the hole 11 of upper bracket 6, and the actuation button often driving sensitive switch 9 faces pressure bladder 5, and the line often driving sensitive switch 9 is connected with control circuit by the through hole 7 on sealed pipe 8.
Fig. 2 is the control circuit wiring diagram of a kind of water pump water shortage protective device of the utility model.Known by figure, described control circuit comprise electric capacity C1, electric capacity C2, resistance R1, rectifier D1, voltage-stabiliser tube D2 form capacitance-resistance step down type DC electrical source, electric capacity C3, electric capacity C4, resistance R2, often open sensitive switch 9, NE555P timer 12 and relay K M composition starting mode of pump circuit, 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 and accesses capacitance-resistance step down type DC electrical source, wherein electric capacity C3 termination enters the negative pole of capacitance-resistance step down type DC electrical source, resistance R2 termination enters the positive pole of capacitance-resistance step down type DC electrical source, electric capacity C3 is accessed with the branch of connecting of resistance R2 and often opens a contact of sensitive switch 9 and the trigger pin 2 of NE555P timer 12, threshold values pin 6, often open the negative pole of another contact access capacitance-resistance step down type DC electrical source of sensitive switch 9, the reset pin 4 of NE555P timer 12, power pins 8 all accesses the positive pole of capacitance-resistance step down type DC electrical source, 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 relay K M.
When the utility model is installed, connecting tube 1 is connected the outlet pipe 10 of water pump, relay K M break-make controls the break-make of pump power, it is work like this: when electricity just plugged by water pump, the normally opened contact often driving sensitive switch 9 is opened, and resistance R2 connects with electric capacity C3 and is in charged state, and 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, relay K M conducting, the power end energising of water pump; If have water in pond or well, the import and export water flowing on connecting tube 1, push rod 4 is pushed open by water and is pushed up on pressure bladder 5, and the normally opened contact often driving sensitive switch 9 closes, and the voltage at electric capacity C3 two ends remains zero, and the power end of water pump is energized always; When lack of water in pond or well, import and export on connecting tube 1 are without water flowing, push rod 4 is not pushed open by water and is pushed up on pressure bladder 5, and the normally opened contact often driving sensitive switch 9 is often opened, and electric capacity C3 is charged to a certain degree, the voltage at its two ends is elevated to a certain degree, make electric capacity C3 be high petential with the branch of connecting of resistance R2, the output pin 3 of timer NE555P is low potential, relay K M not conducting, make water pump power end no electric circuit in water-stressed conditions, pull out power supply.
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 formation, all drop in the protection domain of application claims.
Claims (1)
1. a water pump water shortage protective device, is characterized in that: this water pump water shortage protective device comprises connecting tube, lower support frame, push rod, pressure bladder, upper bracket, sealed pipe and a control circuit, described connecting tube there are import and export, described lower support frame and connecting tube are connected, and it have a port, described push rod is placed in the port of lower support frame, and push rod and lower support frame form a sliding pair, and heads on the lower end surface of pressure bladder, described pressure bladder is placed between lower support frame and upper bracket, and by lower support frame and upper bracket compression fit, its lower end surface contacts with push rod, and upper-end surface communicates with the hole of upper bracket, described upper bracket is connected on lower support frame, porose on it, is insulated with the import and export on connecting tube by pressure bladder and sealed pipe sealing in hole, described sealed pipe is connected on connecting tube and upper bracket, and it has through hole, sensitive switch of often opening on described control circuit is connected in the hole of upper bracket, and the actuation button often driving sensitive switch faces pressure bladder, and the line often driving sensitive switch is connected with control circuit by the through hole on sealed pipe, described control circuit comprise electric capacity C1, electric capacity C2, resistance R1, rectifier D1, voltage-stabiliser tube D2 form capacitance-resistance step down type DC electrical source, electric capacity C3, electric capacity C4, resistance R2, often open sensitive switch, NE555P timer and relay K M composition starting mode of pump circuit, 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 and accesses capacitance-resistance step down type DC electrical source, wherein electric capacity C3 termination enters the negative pole of capacitance-resistance step down type DC electrical source, resistance R2 termination enters the positive pole of capacitance-resistance step down type DC electrical source, electric capacity C3 is accessed with the branch of connecting of resistance R2 and often opens a contact of sensitive switch and the trigger pin 2 of NE555P timer, threshold values pin 6, often open the negative pole of another contact access capacitance-resistance step down type DC electrical source of sensitive switch, the reset pin 4 of NE555P timer, power pins 8 all accesses the positive pole of capacitance-resistance step down type DC electrical source, 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 relay K M.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420488584.7U CN204041409U (en) | 2014-08-28 | 2014-08-28 | A kind of water pump water shortage protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420488584.7U CN204041409U (en) | 2014-08-28 | 2014-08-28 | A kind of water pump water shortage protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204041409U true CN204041409U (en) | 2014-12-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420488584.7U Expired - Fee Related CN204041409U (en) | 2014-08-28 | 2014-08-28 | A kind of water pump water shortage protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204041409U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588013A (en) * | 2017-07-02 | 2018-01-16 | 胡君分 | A kind of immersible pump with anti-jamming function |
-
2014
- 2014-08-28 CN CN201420488584.7U patent/CN204041409U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588013A (en) * | 2017-07-02 | 2018-01-16 | 胡君分 | A kind of immersible pump with anti-jamming function |
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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 |