CN201547348U - Novel backflow preventing device with convenient maintenance - Google Patents
Novel backflow preventing device with convenient maintenance Download PDFInfo
- Publication number
- CN201547348U CN201547348U CN2009202107559U CN200920210755U CN201547348U CN 201547348 U CN201547348 U CN 201547348U CN 2009202107559 U CN2009202107559 U CN 2009202107559U CN 200920210755 U CN200920210755 U CN 200920210755U CN 201547348 U CN201547348 U CN 201547348U
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- CN
- China
- Prior art keywords
- sealing
- preventing device
- cover
- backflow preventing
- convenient maintenance
- 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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- Float Valves (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The utility model relates to a novel backflow preventing device with convenient maintenance, which comprises a water chamber, an upper cover, a floating ball, a sealing outer cover, a gas feeding pipe, and is characterized in that the sealing outer cover is fixedly connected with the edge of the upper cover, a sealing cover is arranged on the water chamber, and the sealing cover is connected with the upper cover on the edge of water chamber through a bolt. The novel backflow preventing device with convenient maintenance has the advantages that the backflow preventing device can be maintained more conveniently, and the manufacture materials can be saved.
Description
Technical field
The utility model relates to a kind of backflow preventer of novel convenient for maintaining.
Background technique
Existing backflow preventer is to go to seal two sealing surface (see figure 1)s of A, B with a sealing plate; the reality of common two sealing surfaces is that general inner sealing surface is not fragile; and the external sealed face is fragile; and owing to adopt same structure to seal; then so no matter have that sealing surface to lose efficacy all to need to shut down and repair; therefore demand improving the structure of existing backflow preventer urgently, make backflow preventer be convenient to maintenance.
Summary of the invention:
The purpose of this utility model is to solve backflow preventer in the prior art to carry out the existing problem that is not easy to keep in repair of sealing of two faces because of adopting single structure, and a kind of backflow preventer of novel convenient for maintaining is provided.The utility model designs a kind of backflow preventer of novel convenient for maintaining, comprise hydroecium, loam cake, ball float, sealing enclosing cover, breathing pipe, it is characterized in that: be stamped bolt outside the sealing and fixedly connected with the edge of loam cake, hydroecium is provided with a sealing cover, and sealing cover is connected the loam cake of hydroecium edge by bolt.The utility model has the advantages that to make backflow preventer maintenance more convenient; Reduce Manufacturing material.
Description of drawings:
Fig. 1 is the prior art constructions schematic representation,
Fig. 2 is a structural representation of the present utility model,
Below in conjunction with accompanying drawing and construction embodiment the utility model is made detailed operation instruction.
Embodiment:
Comprise hydroecium 1, air chamber 9, loam cake 2, ball float 3, sealing enclosing cover 4, breathing pipe 5, it is characterized in that: sealing enclosing cover 4 is fixedlyed connected with the edge of loam cake 2 by bolt 6, hydroecium 1 is provided with a sealing cover 7, and sealing cover 7 is connected the loam cake 2 of hydroecium 1 edge by bolt 8.
Since separated the sealing configuration at two places, feasible independent sealed separately, when external sealed is damaged, can not shut down, directly maintain and replace sealing enclosing cover is more prone to operation than prior art in addition.
Claims (1)
1. the backflow preventer of a novel convenient for maintaining, comprise hydroecium, air chamber, loam cake, ball float, sealing enclosing cover, breathing pipe, it is characterized in that: the sealing enclosing cover is fixedlyed connected with the edge of loam cake by bolt, hydroecium is provided with a sealing cover, and sealing cover is connected the loam cake of hydroecium edge by bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202107559U CN201547348U (en) | 2009-10-14 | 2009-10-14 | Novel backflow preventing device with convenient maintenance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202107559U CN201547348U (en) | 2009-10-14 | 2009-10-14 | Novel backflow preventing device with convenient maintenance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201547348U true CN201547348U (en) | 2010-08-11 |
Family
ID=42602521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202107559U Expired - Fee Related CN201547348U (en) | 2009-10-14 | 2009-10-14 | Novel backflow preventing device with convenient maintenance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201547348U (en) |
-
2009
- 2009-10-14 CN CN2009202107559U patent/CN201547348U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20111014 |