CN2515492Y - On-and-off structure improvement of indoor fire hydrant - Google Patents
On-and-off structure improvement of indoor fire hydrant Download PDFInfo
- Publication number
- CN2515492Y CN2515492Y CN 01266535 CN01266535U CN2515492Y CN 2515492 Y CN2515492 Y CN 2515492Y CN 01266535 CN01266535 CN 01266535 CN 01266535 U CN01266535 U CN 01266535U CN 2515492 Y CN2515492 Y CN 2515492Y
- Authority
- CN
- China
- Prior art keywords
- sealing gasket
- flap
- fire hydrant
- open
- hook groove
- 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 the improvement of a valve disc structure of an indoor fire hydrant, which changes a gland bush of a central hole in the prior art into the one without the hole in the middle, thus avoiding the tearing apart of the gland bush from inside to outside due to the huge differential pressure between the inner side and the edge thereof at the moment of opening the fire hydrant, therefore, the service life of the gland bush is largely extended.
Description
One, technical field
The utility model relates to the improvement of the open-shut device structure of wall hydrant, belongs to F16K valve technology.
Two, background technique
Wall hydrant belongs to a kind of of stop valve, thus its open-shut device under the drive of valve rod along the center of valve base channel or move up and down tight contact or lift off a seat and finish closing or opening and closing of valve.
In the prior art, the open-shut device of wall hydrant is made up of flap, sealing gasket, nut, and accompanying drawing 1 is its structural representation.Referring to accompanying drawing 1, flap (1) upper end has groove to connect valve rod, is connected with screw rod under it.Sealing gasket (2) is the middle ring-shaped rubber pad that has circular hole, and it is placed on the screw rod of flap (1), and fixedly connected by nut (3).
Three, summary of the invention
The utility model purpose is to solve the sealing gasket low problem in working life that the open-shut device unreasonable structure causes in the prior art.Because the pressure very high (being up to 1.6Mpa) of water in the wall hydrant, and the outside is a normal pressure, at Open valve in a flash, because inside and outside differential pressure, valve pad is often torn (or endoporus enlargement deformation) from inside to outside, thereby have a strong impact on its sealability, sealing gasket has also usually become disposable product.
The technical solution that is adopted is:
Sealing gasket when sealing gasket is the middle atresia of one, its inboard, edge has the hook groove, and the flap outer ledge has the shoulder that adapts with above-mentioned hook groove, and sealing gasket is wrapped on the flap, and fixedlys connected with flap by above-mentioned shoulder and hook groove.
Owing to taked the sealing gasket of middle atresia, in the moment of opening, there are not pressure reduction in the edge of sealing gasket and center, thereby have avoided the possibility that sealing gasket is torn from inside to outside in the prior art.
Four, description of drawings
Accompanying drawing 1 is the structural representation of wall hydrant open-shut device in the prior art.
Accompanying drawing 2 is the structural representation of wall hydrant open-shut device shown in the utility model.
Each sequence number is respectively (1) flap, (2) sealing gasket, (3) nut among the figure
Five, embodiment
Figure 2 shows that the embodiment who realizes optimal way of the present utility model, sealing gasket (2) is the rubber pad of the middle atresia of one, its inboard, edge has the hook groove, the outer ledge of flap (1) has the shoulder that adapts with the hook groove, sealing gasket is wrapped on the flap, and fixedlys connected with cooperating with flap of hook groove by above-mentioned shoulder.
It may be noted that, core of the present utility model is that sealing gasket is middle atresia, thereby avoided the centre of sealing gasket and outer rim to have pressure reduction, no matter the sealing gasket lower surface is shape why, be plane shape or curvecd surface type, no matter also sealing gasket is to be connected with flap in which way, wrapping up still is bonding by adhesive thereon, or be one by clip connected, all can realize the utility model.
Claims (2)
1. the improvement of the open-shut device structure of wall hydrant comprises flap and sealing gasket, it is characterized in that: sealing gasket is the sealing sealing gasket of middle atresia, and it is fixedlyed connected with flap.
2. the improvement of the open-shut device structure of wall hydrant according to claim 1, it is characterized in that: the inboard, edge of sealing gasket has the hook groove, the outer ledge of flap has the shoulder that adapts with above-mentioned hook groove, sealing gasket is wrapped on the flap, and fixedlys connected with flap by above-mentioned shoulder and hook groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01266535 CN2515492Y (en) | 2001-11-08 | 2001-11-08 | On-and-off structure improvement of indoor fire hydrant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01266535 CN2515492Y (en) | 2001-11-08 | 2001-11-08 | On-and-off structure improvement of indoor fire hydrant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2515492Y true CN2515492Y (en) | 2002-10-09 |
Family
ID=33673190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01266535 Expired - Fee Related CN2515492Y (en) | 2001-11-08 | 2001-11-08 | On-and-off structure improvement of indoor fire hydrant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2515492Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110886607A (en) * | 2019-11-18 | 2020-03-17 | 重庆邮电大学 | Oil well working fluid level depth detector based on pipe column sound field characteristics |
-
2001
- 2001-11-08 CN CN 01266535 patent/CN2515492Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110886607A (en) * | 2019-11-18 | 2020-03-17 | 重庆邮电大学 | Oil well working fluid level depth detector based on pipe column sound field characteristics |
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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 |