CN2098521U - Device preventing back-flow of jet from being frozen - Google Patents
Device preventing back-flow of jet from being frozen Download PDFInfo
- Publication number
- CN2098521U CN2098521U CN 91219917 CN91219917U CN2098521U CN 2098521 U CN2098521 U CN 2098521U CN 91219917 CN91219917 CN 91219917 CN 91219917 U CN91219917 U CN 91219917U CN 2098521 U CN2098521 U CN 2098521U
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- CN
- China
- Prior art keywords
- water
- jet
- valve
- water tap
- sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- Jet Pumps And Other Pumps (AREA)
Abstract
The utility model relates to a device preventing back-flow of jet from being frozen for outdoor installations, which is characterized in that a jet injector (1), an inner pipe (2) and a water tap (6) are connected successively, the outside of the device preventing back-flow of jet from being frozen is fixed with a sleeve (3), the sleeve (3) is provided with a valve (4), and the inner pipe (2) is provided with a valve (5). When the water tap (6) is opened, the jet injector (1) generates negative-pressure suction force to cause the water of the sleeve (3) to be sucked away to form an air cavity; when the water tap (6) is closed, the water of the water tap (6) is automatically fallen back by the effect of the water head, and meanwhile the air of the sleeve (3) enters the inner pipe (2) to form the air cavity through the valve (5), which makes the water tap (6) have no water, and the purpose of the freeze prevention is reached.
Description
The utility model relates to a kind of water tap defroster.
At northern area, the situation that water tap and ground are frozen in the water pipe on top often appears in the running water system of outdoor mounted in the winter time.For antifreeze, people often make water tap one head straight for, and utilize the non-icing reason of perennial draingage that water tap is not frozen, and have caused the waste of water.For this reason, people have invented some water tap defrosters.As No. 87210156 patents of the Decree of Patent Office of China, it is to utilize successively the water valve that connects, jet pump, Dewar bottle etc., and it is got off to realize the purpose that water tap is antifreeze with imbedding.It is underground that the weak point of this device is that its water valve is embedded in, and operation inconvenience and moisture-sensitive corrosion are keeped in repair or changed in case damage to dig out, and be very inconvenient.A water tap also is equipped with at its outlet pipe place in addition, has increased cost.
The purpose of this utility model is at above deficiency, provides a kind of and can prevent water tap and be exposed to the jet backwater defroster that ground water pipe freezes.
The utility model is achieved in that jet pump (1), interior pipe (2), water tap (6) connect successively, airtight interior pipe (2) and jet pump (1) outside of being enclosed within of sleeve (3), constitute gas dome (7), there are valve (4) and the unidirectional conducting of atmosphere in sleeve (3) upper end, jet pump (1) is connected on the running water pipe, so just constitute this jet backwater defroster, this device the latter half is embedded in underground, to reach antifreeze purpose.
Valve (5) and the unidirectional conducting of gas dome (7) are arranged on interior pipe (2) wall of this jet backwater defroster; Or open the directly conducting of a pore and gas dome (7) at Qi Bishang.
The operating principle of this jet backwater defroster is: when water tap (6) when opening, current produce negative-pressure sucking through jet pump (1), water in the gas dome (7) is siphoned away the formation negative pressure, so valve (4) is opened under atmospheric pressure, air enters and forms air cavity in the gas dome (7).Close water tap (6) this moment, the negative-pressure sucking of jet pump (1) disappears, valve (4) is closed in the pressure increase in the gas dome (7), therefore pipe (2) middle water level is higher than gas dome (7) middle water level in the time, under this water-head effect, interior pipe (2) middle water level falls after rise, and gas dome (7) middle water level rises, valve (5) or the pore of air on interior pipe (2) enters interior pipe (2) in the gas dome (7) simultaneously, maintains an equal level until interior pipe (2) and gas dome (7) middle water level.Pipe (2) all forms air cavity with gas dome (7) epimere in this moment, and is anhydrous in the water tap.
The utility model is owing to use jet pump, gas dome and valve etc. to form air cavitys, thereby also can cause certain backwater amplitude and reach antifreeze purpose when pressure of water network is not really high; Because water tap is contained in more than the ground, under ground portion does not have any movable part, thereby uses and keep in repair all very convenient.
Accompanying drawing is a structural representation of the present utility model.
Below in conjunction with accompanying drawing the utility model is elaborated.
With reference to accompanying drawing: this device comprises jet pump (1), interior pipe (2), sleeve (3), valve (4), valve (5), water tap (6).Wherein jet pump (1), interior pipe (2), water tap (6) connect successively, airtight jet pump (1) and interior pipe (2) outside of being enclosed within of sleeve (3), and cavity constitutes gas dome (7) in the middle of it.There are valve (4) and the unidirectional conducting of atmosphere in sleeve (3) upper end, and there are valve (5) and the unidirectional conducting of gas dome (7) in interior pipe (2) upper end.Jet pump (1) is connected on the running water pipe, and this device the latter half is embedded in underground.
When the tap of fetching boiling water (6), current produce negative-pressure sucking from the ejection of jet pump (1) nozzle, water in the gas dome (7) is siphoned away the formation negative pressure, so valve (4) is opened under atmospheric pressure, air enters and forms air cavity in the gas dome (7), valve (5) is closed under the hydraulic action in interior pipe (2) simultaneously, and water can not be flowed in the gas dome (7).Close water tap (6) this moment, and then current stop, and the negative-pressure sucking in the jet pump (1) disappears.Under the hydraulic action of the network of rivers, pressure raises in the gas dome (7), and valve (4) is closed, and the middle air of gas dome (7) can not be overflowed.Pipe (2) middle water level is higher than gas dome (7) middle water level in this moment, because of both lower ends through jet pump (1) conducting, then be opened at water-head effect lower valve (5), interior pipe (2) middle water level falls after rise, gas dome (7) middle water level rises, air enters in the interior pipe (2) through valve (5) in the gas dome (7) simultaneously, maintains an equal level until both water levels.All form air cavity at interior pipe (2) and gas dome (7) epimere this moment.In closing water tap (6) process, the air that enters in the interior pipe (2) has seldom amount effusion in addition, residual low amounts of water in water tap (6) faucet is washed out, so all anhydrous in the epimere of water tap (6) and interior pipe (2).
If the valve (5) on the interior pipe (2) is cancelled, and only on interior pipe (2) epimere wall, open the directly conducting of a pore (not marking among the figure) and gas dome (7), though having small amount of water when the tap of fetching boiling water (6) flows in the gas dome (7) through this pore, but these water can constantly be siphoned away by jet pump (1), thereby also can reach same effect, structure is then simple.
Claims (3)
1, a kind of jet backwater defroster, comprise water tap (6), it is characterized in that jet pump (1), interior pipe (2), water tap (6) connects successively, airtight jet pump (1) and interior pipe (2) outside of being enclosed within of sleeve (3), there are valve (4) and the unidirectional conducting of atmosphere in sleeve (3) upper end, and jet pump (1) water inlet links to each other with tap water.
2, jet backwater defroster as claimed in claim 1 is characterized in that having on the interior pipe (2) valve (5) and the unidirectional conducting of gas dome (7).
3, jet backwater defroster as claimed in claim 1 is characterized in that having on the interior pipe (2) the directly conducting of pore and gas dome (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91219917 CN2098521U (en) | 1991-08-14 | 1991-08-14 | Device preventing back-flow of jet from being frozen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91219917 CN2098521U (en) | 1991-08-14 | 1991-08-14 | Device preventing back-flow of jet from being frozen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2098521U true CN2098521U (en) | 1992-03-11 |
Family
ID=4927092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91219917 Pending CN2098521U (en) | 1991-08-14 | 1991-08-14 | Device preventing back-flow of jet from being frozen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2098521U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023179017A1 (en) * | 2022-03-24 | 2023-09-28 | 青岛理工大学 | Water cutoff and water storage freezing prevention apparatus and use method |
-
1991
- 1991-08-14 CN CN 91219917 patent/CN2098521U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023179017A1 (en) * | 2022-03-24 | 2023-09-28 | 青岛理工大学 | Water cutoff and water storage freezing prevention apparatus and use method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |