CN101612462A - Drainage valve of fire hydrant - Google Patents
Drainage valve of fire hydrant Download PDFInfo
- Publication number
- CN101612462A CN101612462A CN200810039775A CN200810039775A CN101612462A CN 101612462 A CN101612462 A CN 101612462A CN 200810039775 A CN200810039775 A CN 200810039775A CN 200810039775 A CN200810039775 A CN 200810039775A CN 101612462 A CN101612462 A CN 101612462A
- Authority
- CN
- China
- Prior art keywords
- fire hydrant
- drain cock
- drainage valve
- valve
- valve body
- 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
Links
Images
Landscapes
- Lift Valve (AREA)
Abstract
The invention discloses a kind of drainage valve of fire hydrant, mainly be made up of valve body and drain cock joint, it is characterized in that: the sealing ring of drain cock joint links to each other with an arc sealing part.The present invention is rational in infrastructure, is skillfully constructed, and directly utilizes the elasticity of sealing member material and circular arc to make back pressure, makes the best use of everything, and has overcome the baroque defective of conventional art effectively, has promotional value.
Description
Technical field
The present invention relates to the fire-fighting equipment technical field, specifically, relate to a kind of draining valve at the bottom of the fire hydrant that is used for.
Background technology
At present traditional automatic drain valve that is used on the fire hydrant all is the elastic force that utilizes spring, comes the automatic open close of control valve.When hydraulic pressure was high in the valve body, water pressure overcame spring force, spring force overcame water pressure when pressure was low, thus the automatic open close draining valve, its complex structure.
Summary of the invention
The objective of the invention is to, provide a kind of and can effectively overcome above-mentioned defective, utilize seal that the drainage valve of fire hydrant of back pressure is provided.
For achieving the above object, the present invention adopts following technical scheme: a kind of drainage valve of fire hydrant, mainly form by valve body and drain cock joint, and it is characterized in that: the sealing ring of drain cock joint links to each other with an arc sealing part.
Because adopt such scheme, be not difficult to draw as drawing a conclusion: the present invention is rational in infrastructure, is skillfully constructed, and directly utilizes the elasticity of sealing member material and circular arc to make back pressure, makes the best use of everything, and has overcome the baroque defective of conventional art effectively, has promotional value.
Description of drawings
Below in conjunction with drawings and Examples the present invention is described in further detail.
Accompanying drawing is a structural representation of the present invention.
The specific embodiment
Referring to accompanying drawing, a kind of drainage valve of fire hydrant mainly is made up of valve body 3 and drain cock joint 1, and the sealing ring of drain cock joint 1 links to each other with an arc sealing part 2.Its operation principle is described below: when intaking in the valve body, hydraulic pressure raises in the valve body, and arc sealing part is made by elastomeric material because of it, and it is met and presses just from dynamic deformation, blocks the outlet of drain cock joint.When valve body was closed, hydraulic pressure descended in the valve body, and arc sealing part recovers automatically, and drain cock joint begins draining.
Claims (1)
1, a kind of drainage valve of fire hydrant mainly is made up of valve body and drain cock joint, it is characterized in that: the sealing ring of drain cock joint links to each other with an arc sealing part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810039775A CN101612462A (en) | 2008-06-27 | 2008-06-27 | Drainage valve of fire hydrant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810039775A CN101612462A (en) | 2008-06-27 | 2008-06-27 | Drainage valve of fire hydrant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101612462A true CN101612462A (en) | 2009-12-30 |
Family
ID=41492462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810039775A Pending CN101612462A (en) | 2008-06-27 | 2008-06-27 | Drainage valve of fire hydrant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101612462A (en) |
-
2008
- 2008-06-27 CN CN200810039775A patent/CN101612462A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205504017U (en) | Self -sealing structure of pressurization butterfly valve | |
| CN102535603B (en) | Turnover plate one-way valve | |
| CN204004765U (en) | A kind of explosion-proof water tap | |
| CN101612462A (en) | Drainage valve of fire hydrant | |
| CN204692635U (en) | Ball valve ball seal structure | |
| CN101614286A (en) | The arc sealing part of automatic drain valve | |
| CN202416448U (en) | Fire hydrant with drainage device | |
| CN202165737U (en) | Connecting structure for plastic inspection well and smooth wall tube | |
| CN205330900U (en) | Hydraulic manual pump | |
| CN101097010A (en) | Automatic start and stop technology of draining valve | |
| CN2926704Y (en) | High-pressure-resisting automatic discharging valve | |
| CN201502756U (en) | Lifting vertical flap check valve | |
| CN2926702Y (en) | High-pressure-resisting arced sealing piece of automatic-discharging valve | |
| CN2926701Y (en) | Arced sealing piece of automatic-discharging valve | |
| CN204785202U (en) | Hookup valve | |
| CN101097012A (en) | High pressure resistant automatic start and stop technology of draining valve | |
| CN205357630U (en) | Low pressure piston formula livestock drinking bowl | |
| CN204080980U (en) | With the sewer pipe of deodorization apparatus | |
| CN203258100U (en) | Mounted-type ball valve capable of being dismounted and mounted on line and achieving two-way sealing | |
| CN202646900U (en) | Valve rod sealing device | |
| CN210178932U (en) | Double-sealing stop valve | |
| CN203475561U (en) | Water discharge device capable of realizing instantaneous closing and toilet | |
| CN202510744U (en) | Ball valve | |
| CN208816774U (en) | A kind of high-voltage switch gear with check valve | |
| CN214466112U (en) | Sealed effectual control valve for water conservancy water and electricity |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091230 |