CN201159316Y - Device for prevent accidental long-time water leakage - Google Patents
Device for prevent accidental long-time water leakage Download PDFInfo
- Publication number
- CN201159316Y CN201159316Y CNU2008200557424U CN200820055742U CN201159316Y CN 201159316 Y CN201159316 Y CN 201159316Y CN U2008200557424 U CNU2008200557424 U CN U2008200557424U CN 200820055742 U CN200820055742 U CN 200820055742U CN 201159316 Y CN201159316 Y CN 201159316Y
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- Prior art keywords
- relay
- switch
- contact
- control end
- solenoid valve
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Abstract
A device for preventing accident long-time water leakage is composed of an electromagnetic valve and a control circuit, wherein the control circuit is provided with a latch-in relay whose normal open contact is serially connected between a power supply h and the electromagnetic valve, the control end of the latch-in relay is serially connected with the output contact of a time relay to be connected with the power supply, the control end of the time relay is serially connected with a pressure switch to be connected with the power supply, and the output contact of the time relay is parallel connected with the latch-in contact of the latch-in relay. The utility model adopts the pressure switch to detect the pressure of a water pipe, adopts the time relay to judge the accident of the water pipe and control the latch-in relay, adopts the latch-in relay to control and keep the operation of the electromagnetic valve and adopts the electromagnetic valve to cut off water flow, thereby effectively preventing accident water leakage and protecting property.
Description
Technical field:
The utility model relates to mechanical field, relates in particular to valve, and the particularly control gear of electromagnetic valve a kind ofly specifically prevents the unexpected device that leaks for a long time.
Background technique:
Tap water is in modern society's extensive use.But, forget through regular meeting and to turn off the tap or incident that water tap, water pipe damage that outer bad floor of overfoaming of current and furniture cause a large amount of losses.
Summary of the invention:
The purpose of this utility model provides a kind of unexpected device that leaks for a long time that prevents, described this preventing can't be cut off the technical problem of current when the unexpected device that leaks for a long time from will solve water tap in the prior art, water pipe accidental release automatically.
A kind of device that prevents that accident from leaking for a long time of the present utility model is made of solenoid valve and control circuit, wherein, be provided with a lock-up relay in the described control circuit, be provided with normally opened contact and self holding contact in the described lock-up relay, the control end of described solenoid valve is connected with power supply by lead, the normally opened contact of described lock-up relay is connected in the described lead, the control end of lock-up relay be connected with power supply again after the output contact of a time relay is connected, the output contact of the described time relay is often opened, be connected with power supply after pressure switch of polyphone on the control end of the time relay, the output contact of the time relay and described self holding contact and a normally closed reset switch are connected in parallel, and self holding contact is connected with described normally closed reset switch.
Further, the described lock-up relay and the time relay are AC relay respectively.
Further, the described time relay is the adjustable parameter relay, and described pressure switch is the adjustable parameter pressure switch.
Further, be connected in parallel to a warning light on the control end of described solenoid valve, be connected with a rotary switch between the control end of described warning light and solenoid valve.
Further, be connected in parallel to a buzzer on the control end of described solenoid valve, be connected with a rotary switch between the control end of described buzzer and solenoid valve.
Further, the output contact of the described time relay is connected with self holding contact, described normally closed reset switch and one first manual switch in parallel, self holding contact, described normally closed reset switch and the described first manual switch series downlink connection.
Further, the output contact of the described time relay is connected with one second manual switch in parallel, described second manual switch with the polyphone after self holding contact, described normally closed reset switch and the first manual switch in parallel be connected.
Further, described first manual switch and second manual switch are made of a throw over switch.
Further, described throw over switch is made of rotary switch.
Concrete, solenoid valve described in the utility model, lock-up relay, the time relay, pressure switch, AC relay, adjustable parameter relay and adjustable parameter pressure switch all can adopt known schemes of the prior art, known solution about solenoid valve, lock-up relay, the time relay, pressure switch, AC relay, adjustable parameter relay and adjustable parameter pressure switch, those skilled in the art all understands, and does not repeat them here.
Working principle of the present utility model is: in the using process, pressure switch and solenoid valve are installed in the waterpipe, the time relay is often opened.Hydraulic pressure just often, pressure switch does not have output signal, the output contact of the time relay is action not, the normally opened contact and the self holding contact of lock-up relay are all opened a way, solenoid valve and supply disconnecton.When water pipe explosion or water tap unlatching, tap water flows out, hydraulic pressure descends in the pipeline, pressure switch is connected, the control end energising of the time relay, the time relay picks up counting, set the maximum duration of normal water in advance, the normal water of surpass setting when time relay timing is after the time, and the control end of lock-up relay is connected in the output contact adhesive of the time relay, the equal adhesive of the normally opened contact of lock-up relay and self holding contact, solenoid valve and power connection, current are cut off in solenoid valve work.Warning light in parallel with relay or buzzer can send the prompting of water pipe fault.Afterwards, the waterpipe internal pressure rises, pressure switch disconnects, the control end outage of the time relay, the output contact of the time relay disconnects, and the control end of lock-up relay keeps energising through the self holding contact of adhesive, and the normally opened contact of relay continues adhesive, solenoid valve and power supply keep connecting, and solenoid valve is kept current and cut off.Personnel press reset switch after keeping in repair the water pipe fault, and the self holding contact of relay disconnects, the control end outage of relay, and the normally opened contact of relay disconnects, the solenoid valve outage, current recover.Can prevent that lock-up relay from entering the self-insurance state, be convenient to test.Regulate the parameter of pressure switch, can select suitable action hydraulic pressure as the case may be.
The utility model and prior art contrast, and its effect is actively with tangible.The pressure switch of utilizing the utility model detects siphon pressure and changes, utilize the time relay to judge water pipe fault and further control lock-up relay, utilize lock-up relay control and keep solenoid valve work, utilize the solenoid valve shuts current, can effectively prevent the accidental water leakage accident, avoid property loss.
Description of drawings:
Fig. 1 is a kind of circuit theory diagrams that prevent the unexpected device that leaks for a long time of the present utility model.
Embodiment:
As depicted in figs. 1 and 2, the device that prevents that accident from leaking for a long time of the present utility model is made of solenoid valve YV and control circuit, wherein, be provided with a lock-up relay KA in the described control circuit, be provided with normally opened contact and self holding contact among the described lock-up relay KA, the control end of described solenoid valve YV is connected by the output terminal of lead with lock-up relay KA, the normally opened contact of described lock-up relay KA is connected on the power supply, the control end of lock-up relay KA be connected with power supply again after the output contact of a time relay KT is connected, the output contact of described time relay KT is often opened, be connected with power supply behind pressure switch P of polyphone on the control end of time relay KT, the output contact of time relay KT and described self holding contact and a normally closed reset switch SP1 are connected in parallel, and self holding contact is connected with described normally closed reset switch SP1.
Further, described time relay KT is the adjustable parameter relay, and described pressure switch P is adjustable parameter pressure switch P.
Further, be connected in parallel to a warning light HL on the control end of described solenoid valve YV, be connected with a control switch SA1 between the control end of described warning light HL and solenoid valve YV.
Further, be connected in parallel to a buzzer HA on the control end of described solenoid valve YV, be connected with a control switch SA2 between the control end of described buzzer HA and solenoid valve YV.
Further, the output contact of described time relay KT and self holding contact, described normally closed reset switch SP1 and one first manual switch S P2 are connected in parallel, and self holding contact, described normally closed reset switch SP1 are connected with the described first manual switch S P2.
Further, the output contact of described time relay KT and one second manual switch S P3 are connected in parallel, and self holding contact, described normally closed reset switch SP1 and the first manual switch S P2 behind the described second manual switch S P3 and the polyphone are connected in parallel.
Further, the described first manual switch S P2 and the second manual switch S P3 are made of an interlocked changeover switch.
Further, described throw over switch is made of rotary switch.
Among the embodiment of the present utility model, pressure switch P and solenoid valve YV are installed in the waterpipe, time relay KT often opens.Hydraulic pressure just often, pressure switch P does not have output signal, the output contact of time relay KT is action not, normally opened contact and the self holding contact of lock-up relay KA are all opened a way, solenoid valve YV and supply disconnecton.When water pipe explosion or water tap unlatching, tap water flows out, hydraulic pressure descends in the pipeline, pressure switch P connects, the control end energising of time relay KT, time relay KT picks up counting, set the maximum duration of normal water in advance, the normal water of surpass setting when time relay K T timing is after the time, and the control end of lock-up relay KA is connected in the output contact adhesive of time relay KT, the equal adhesive of the normally opened contact of lock-up relay KA and self holding contact, solenoid valve YV and power connection, current are cut off in solenoid valve YV work.Warning light HL in parallel with relay or buzzer HA can send the prompting of water pipe fault.Afterwards, the waterpipe internal pressure rises, pressure switch P disconnects, the control end outage of time relay KT, the output contact of time relay KT disconnects, and the control end of lock-up relay KA keeps energising through the self holding contact of adhesive, and the normally opened contact of relay continues adhesive, solenoid valve YV and power supply keep connecting, and solenoid valve YV keeps current and cuts off.After personnel keep in repair the water pipe fault, press reset switch SP1, the self holding contact of relay disconnects, and the control of relay is electricity absolutely, and the normally opened contact of relay disconnects, solenoid valve YV outage, and current recover.Regulate the parameter of pressure switch P, can select suitable action hydraulic pressure as the case may be.
Change the 220V Ac into the 24V Ac by transformer T in the power supply, before the primary air of transformer T, be provided with switch QF and fus FU1.Behind the secondary winding of transformer T, be provided with FU2.
Adopt ac power supply and AC relay in the present embodiment, but the utility model can adopt also DC electrical source and DC relay to realize same purpose and effect.
Claims (9)
1. one kind prevents the unexpected device that leaks for a long time, constitute by solenoid valve and control circuit, it is characterized in that: be provided with a lock-up relay in the described control circuit, be provided with normally opened contact and self holding contact in the described lock-up relay, the control end of described solenoid valve is connected with power supply by lead, the normally opened contact of described lock-up relay is connected in the described lead, the control end of lock-up relay be connected with power supply again after the output contact of a time relay is connected, the output contact of the described time relay is often opened, be connected with power supply after pressure switch of polyphone on the control end of the time relay, the output contact of the time relay and described self holding contact and a normally closed reset switch are connected in parallel, and self holding contact is connected with described normally closed reset switch.
2. the device that prevents that accident from leaking for a long time as claimed in claim 1, it is characterized in that: the described lock-up relay and the time relay are AC relay respectively.
3. the device that prevents that accident from leaking for a long time as claimed in claim 1, it is characterized in that: the described time relay is the adjustable parameter relay, described pressure switch is the adjustable parameter pressure switch.
4. the device that prevents that accident from leaking for a long time as claimed in claim 1 is characterized in that: be connected in parallel to a warning light on the control end of described solenoid valve, be connected with a rotary switch between the control end of described warning light and solenoid valve.
5. the device that prevents that accident from leaking for a long time as claimed in claim 1 is characterized in that: be connected in parallel to a buzzer on the control end of described solenoid valve, be connected with a rotary switch between the control end of described buzzer and solenoid valve.
6. the device that prevents that accident from leaking for a long time as claimed in claim 1, it is characterized in that: the output contact of the described time relay is connected with self holding contact, described normally closed reset switch and one first manual switch in parallel, self holding contact, described normally closed reset switch and the described first manual switch series downlink connection.
7. the device that prevents that accident from leaking for a long time as claimed in claim 6, it is characterized in that: the output contact of the described time relay is connected with one second manual switch in parallel, described second manual switch with the polyphone after self holding contact, described normally closed reset switch and the first manual switch in parallel be connected.
8. the device that prevents that accident from leaking for a long time as claimed in claim 7, it is characterized in that: described first manual switch and second manual switch are made of a throw over switch.
9. the device that prevents that accident from leaking for a long time as claimed in claim 8, it is characterized in that: described throw over switch is made of rotary switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200557424U CN201159316Y (en) | 2008-02-26 | 2008-02-26 | Device for prevent accidental long-time water leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200557424U CN201159316Y (en) | 2008-02-26 | 2008-02-26 | Device for prevent accidental long-time water leakage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201159316Y true CN201159316Y (en) | 2008-12-03 |
Family
ID=40109900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200557424U Expired - Fee Related CN201159316Y (en) | 2008-02-26 | 2008-02-26 | Device for prevent accidental long-time water leakage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201159316Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102916390A (en) * | 2012-11-07 | 2013-02-06 | 孙霖 | Protection device with function of cutting off power during water supply failure |
| CN104199369A (en) * | 2014-08-21 | 2014-12-10 | 深圳供电局有限公司 | Water-saving monitoring device |
| CN104421487A (en) * | 2013-08-23 | 2015-03-18 | 张振坤 | Automatic shutoff protection device for water pipe water leakage |
| CN106402474A (en) * | 2016-12-13 | 2017-02-15 | 成都锦汇科技有限公司 | Water pipe valve capable of preventing leakage |
-
2008
- 2008-02-26 CN CNU2008200557424U patent/CN201159316Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102916390A (en) * | 2012-11-07 | 2013-02-06 | 孙霖 | Protection device with function of cutting off power during water supply failure |
| CN104421487A (en) * | 2013-08-23 | 2015-03-18 | 张振坤 | Automatic shutoff protection device for water pipe water leakage |
| CN104199369A (en) * | 2014-08-21 | 2014-12-10 | 深圳供电局有限公司 | Water-saving monitoring device |
| CN106402474A (en) * | 2016-12-13 | 2017-02-15 | 成都锦汇科技有限公司 | Water pipe valve capable of preventing leakage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081203 Termination date: 20100226 |