CN2215644Y - Fire-fighting valve - Google Patents
Fire-fighting valve Download PDFInfo
- Publication number
- CN2215644Y CN2215644Y CN 95207940 CN95207940U CN2215644Y CN 2215644 Y CN2215644 Y CN 2215644Y CN 95207940 CN95207940 CN 95207940 CN 95207940 U CN95207940 U CN 95207940U CN 2215644 Y CN2215644 Y CN 2215644Y
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- model
- utility
- valve
- fire
- 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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- Lift Valve (AREA)
Abstract
The utility model relates to a fire-fighting valve, which is characterized in that a rotating shaft and a butterfly board corresponding to the rotating shaft are both provided with water returning holes. When the utility model is closed, the upper wall of a valve body which is provided with the rotating shaft and corresponds to the butterfly board is also provided with water returning holes communicated with the water returning holes. The utility model has the advantages of rapid opening and closing, reliable sealing, simple structure and easy maintenance and management. After the utility model is not used, the water accumulated in a pipeline can be discharged automatically through the water returning holes, so as to achieve the purpose for preventing valves and pipelines from being frosted.
Description
The utility model belongs to F16K valve class technology, particularly relates to a kind of fire valve.
Known technology is used for the fire-fighting of fire protection pipeline and fastens and need be realized by the multipart stack mounting of adapter, gate valve, bend pipe and coupling part.This installation method also has following deficiency: the first then is unfavorable for maintenance management because complexity is installed; It two is that used gate valve itself can not be got rid of the ponding in the fire protection pipeline, so easy freezing valve and pipeline; It three is used cost height.
The purpose of this utility model is to overcome the deficiency in the known technology and a kind of structure and simple installation is provided and prevents the fire valve of freezing valve and pipeline.
The purpose of this utility model is to realize like this
: all have backwater hole on the butterfly plate of rotating shaft of the present utility model and rotating shaft correspondence, the valve body upper wall corresponding with rotating shaft and butterfly plate are housed also has the backwater hole that communicates with above-mentioned backwater hole down in off position.
Advantage and the good effect that the utlity model has are:
1. in the utility model, adopt centre-pivoted butterfly valve, open and close rapidly and seal reliably than gate valve used in the known technology.
2. after the utility model is stopped using, can get rid of pipeline inner product water automatically by its backwater hole, and can prevent freezing valve and pipeline.
3. because the utility model has relatively dwindled the spatial volume of valve, then can reduce the well pool volume that fire-fighting fastens and cost is reduced.
4. the utility model is simple in structure and be easy to maintenance management.
The utility model has following accompanying drawing:
Fig. 1 is the utility model structural representation;
Fig. 2 is the plan view of Fig. 1.
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail:
The worm gear that has rotating shaft 6 15 of worm screw 3 being installed and being meshed in the casing 4 with it, after rotating shaft passes an end of casing, be equipped with and flange plate all-in-one-piece valve body 7 by screw 5, be equipped with and the fixing butterfly plate 8 of rotating shaft by pin 12 in the rotating shaft, the copper sheathing 13,14 of lubricate also is housed in the rotating shaft in the valve body in addition.All have backwater hole 9 on the butterfly plate of above-mentioned rotating shaft and rotating shaft correspondence, valve body upper wall corresponding with rotating shaft and butterfly plate are housed when closing the utility model also has the backwater hole 11 that communicates with backwater hole 9.In addition, valve seat 10 is installed also in the valve body, the other end of casing is by screw 2 mounting covers 1.
Claims (1)
1, a kind of fire valve, be by in casing, install worm screw and with the worm gear that has rotating shaft that is meshed, rotating shaft is equipped with and flange plate all-in-one-piece valve body and butterfly plate after passing an end of casing, valve seat also is installed in the valve body, the other end of casing is formed by the screw mounting cover, it is characterized in that: all have backwater hole on the butterfly plate of rotating shaft and rotating shaft correspondence, the valve body upper wall corresponding with rotating shaft and butterfly plate are housed also has the backwater hole that communicates with above-mentioned backwater hole down in off position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95207940 CN2215644Y (en) | 1995-04-11 | 1995-04-11 | Fire-fighting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95207940 CN2215644Y (en) | 1995-04-11 | 1995-04-11 | Fire-fighting valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2215644Y true CN2215644Y (en) | 1995-12-20 |
Family
ID=33859414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95207940 Expired - Fee Related CN2215644Y (en) | 1995-04-11 | 1995-04-11 | Fire-fighting valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2215644Y (en) |
-
1995
- 1995-04-11 CN CN 95207940 patent/CN2215644Y/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 |