CN2322232Y - Device for preventing water back flow used in water-wall advertisement - Google Patents
Device for preventing water back flow used in water-wall advertisement Download PDFInfo
- Publication number
- CN2322232Y CN2322232Y CN 97242801 CN97242801U CN2322232Y CN 2322232 Y CN2322232 Y CN 2322232Y CN 97242801 CN97242801 CN 97242801 CN 97242801 U CN97242801 U CN 97242801U CN 2322232 Y CN2322232 Y CN 2322232Y
- Authority
- CN
- China
- Prior art keywords
- water
- expanding chamber
- waterwall
- advertisement screen
- dividing plate
- 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.)
- Expired - Fee Related
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- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model discloses a device for preventing water back flow used in a water-wall advertisement screen. The utility model is characterized in that the device for preventing water back flow is provided with an expansion chamber in which a spacer plate is arranged. The spacer plate on or near the top end of the expansion chamber is provided with a through hole. The bottom of the expansion chamber at one side of the spacer plate is provided with a water back gap, and the bottom of the expansion chamber at the other side of the spacer plate is provided with an air inlet. The utility model with the advantages of simple structure and reliable work can effectively prevent water in the water wall flowing back to an air pump, thus protect coils of an air pump motor from being wetted by the water and prevent the motor being burnt out or leaking.
Description
The utility model relates to the communication apparatus of a kind of liquid, gas, specifically a kind of device that prevents water back flow in the body of wall that is mainly used in the waterwall advertisement screen.
Existing water wall type advertisement screen is to annotate to put clear water and squeeze into gas with air pump again in the waterwall of the different shape of being made by transparent material, in clear water, form bubble, put the material object that needs advertisement then thereafter, and be equipped with light and form very strong advertisement color, be the high water stage water back flow in the anti-seepproof screen at present, usually between air pump and waterwall, adopt retaining valve 11 or stop valve as shown in Figure 1, but erosion owing to structural reason and water oxygen, valve element can not be prevented the seepage of sealing long-term effectively, and then the coil that makes air pump motor is easily caused burn-down of electric motor or electric leakage by water infiltration.
The purpose of this utility model be to provide a kind of be used for the waterwall advertisement screen prevent the water back flow device, it can make the gas in the air pump inject the water wall type advertisement screen, can stop the water of high water stage to flow in the air pump of low level after closing air pump and go.
The technical solution of the utility model be achieved in that be used for the waterwall advertisement screen prevent the water back flow device, it comprises the return pipe and the draft tube that is connected with air pump that feeds in the waterwall advertisement screen, it is characterized in that: this prevents that the water back flow device from having an expanding chamber, in expanding chamber, be provided with a dividing plate, the dividing plate on expanding chamber top or close expanding chamber top is provided with through hole, be provided with a water return outlet in the expanding chamber bottom that is positioned at dividing plate one side, be provided with an air intake opening in the expanding chamber bottom that is positioned at the dividing plate opposite side.
The utility model is because the dividing plate on the top of the top of expanding chamber or close expanding chamber is provided with through hole; and this lead to the hole site will be higher than the waterline commonly used of waterwall advertisement screen; form a kind of level difference type; when air pump is worked; air-flow can produce bubble through entering waterwall from water return outlet again behind the through hole in the expanding chamber easily; after air pump cuts out; the dividing plate that water in the waterwall is inflated in the chamber blocks; can only can not flow through in a side of dividing plate and be in high-order through hole and enter air pump; thereby protected the coil of air pump motor not to be soaked in water, avoided motor to be burnt or leak electricity.
Fig. 1 is the connection diagram of prior art
Fig. 2 is a connection diagram of the present utility model
Fig. 3 is the structural representation of the utility model one embodiment
Fig. 4 is the structural representation of the another embodiment of the utility model
The utility model will be further described below in conjunction with drawings and Examples.
The utility model has an expanding chamber 1, in expanding chamber 1, be provided with a dividing plate 2, the dividing plate 2 on the top of expanding chamber 1 or close expanding chamber 1 top is provided with through hole 3, be provided with a water return outlet 4 in the expanding chamber bottom that is positioned at dividing plate 2 one sides, be provided with an air intake opening 5 in the expanding chamber bottom that is positioned at the dividing plate opposite side.In two embodiment, the lead to the hole site that is provided with on dividing plate 2 will be higher than the waterline commonly used 6 of waterwall advertisement screen 10, to form a kind of level difference type, stop backwater to enter air pump 9, because the effect of dividing plate, expanding chamber is divided into two parts, one is the part that can hold backwater and vapour, one then is the part of only holding gas, according to test, be greater than the volume of the expanding chamber that is provided with air intake opening 5 at the volume of the expanding chamber that is provided with water return outlet 4: and be arranged on vertical configuration or the out of plumb shape that dividing plate in the expanding chamber can be in horizontal direction, its non-perpendicularity generally is controlled at ± 30 ° in, backwater pours draft tube 7 by expanding chamber in the advertisement screen in order to stop better in addition, causes siphonage, can adopt the level height of the draft tube 7 that is connected with air pump should be a little more than the level height that feeds the return pipe 8 in the waterwall advertisement screen in an embodiment.The utility model is installed as shown in Figure 2, in waterwall advertisement screen 10, inject clear water, opening air pump 9 air communication crosses draft tube 7 and is entered in the expanding chamber 1 by air intake opening 5, the water return outlet 4 of via through holes 3 and expanding chamber 1 bottom enters in the waterwall advertisement screen by return pipe 8 and produces bubble again, if air pump 9 cuts out, water and vapour in the waterwall advertisement screen 10 enter expanding chamber 1 by return pipe 8 through water return outlet 4, because the dividing plate 2 in the expanding chamber forms the potential difference effect, water can only rest in the expanding chamber that contains return pipe 81 of dividing plate 2 one sides, gas then can be inflated chamber 1 and discharge, via through holes 3, air intake opening 4, draft tube 7 to the pump housing 10 forms gas column, and then slowly discharge, the utility model is simple in structure, reliable operation can adopt transparent material to make, and profile is elongated, a side that is hidden in the waterwall body does not influence outward appearance, is the gordian technique that the waterwall advertisement screen can be implemented use.
Claims (3)
1. what be used for the waterwall advertisement screen prevents the water back flow device, it comprises the return pipe and the draft tube that is connected with air pump that feeds in the waterwall advertisement screen, it is characterized in that: this prevents that the water back flow device from having an expanding chamber, in expanding chamber, be provided with a dividing plate, the dividing plate on expanding chamber top or close expanding chamber top is provided with through hole, be provided with a water return outlet in the expanding chamber bottom that is positioned at dividing plate one side, be provided with an air intake opening in the expanding chamber bottom that is positioned at the dividing plate opposite side.
2. by the described anti-sealing example return device that is used for the waterwall advertisement screen of claim 1, it is characterized in that; The position of the through hole that is provided with on dividing plate will be higher than the waterline commonly used of waterwall advertisement screen; Be greater than the volume of the expanding chamber that is provided with air intake opening at the volume of the expanding chamber that is provided with water return outlet.
By claim 1 or 2 described be used for the waterwall advertisement screen prevent the water back flow device, it is characterized in that: the level height of the draft tube that is connected with air pump should be a little more than the level height that feeds the return pipe in the waterwall advertisement screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97242801 CN2322232Y (en) | 1997-12-02 | 1997-12-02 | Device for preventing water back flow used in water-wall advertisement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97242801 CN2322232Y (en) | 1997-12-02 | 1997-12-02 | Device for preventing water back flow used in water-wall advertisement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2322232Y true CN2322232Y (en) | 1999-06-02 |
Family
ID=33951931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97242801 Expired - Fee Related CN2322232Y (en) | 1997-12-02 | 1997-12-02 | Device for preventing water back flow used in water-wall advertisement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2322232Y (en) |
-
1997
- 1997-12-02 CN CN 97242801 patent/CN2322232Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |