CN101093023A - Non-negative pressure valve - Google Patents
Non-negative pressure valve Download PDFInfo
- Publication number
- CN101093023A CN101093023A CN 200610045195 CN200610045195A CN101093023A CN 101093023 A CN101093023 A CN 101093023A CN 200610045195 CN200610045195 CN 200610045195 CN 200610045195 A CN200610045195 A CN 200610045195A CN 101093023 A CN101093023 A CN 101093023A
- Authority
- CN
- China
- Prior art keywords
- negative pressure
- seal ring
- valve body
- pressure valve
- erosion control
- 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
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- Float Valves (AREA)
Abstract
This invention relates to a no-negative pressure valve including a valve, a core and a cover characterizing that inside of the core is installed with a floating ball set under a seal ring and a seal ring, when using, the floating ball rises acted by floatation of running water, when the seal ring is sustained, channel of inside and outside of the no-negative pressure device is cut, when the surface of running water falls, the ball leaves the ring and the channel is resumed since a floating ball with a conduction rod is installed in the core and a seal ring is fixed on the ring baffle and the ball is set under the seal ring.
Description
Technical field
The present invention relates to a kind of non-negative pressure valve, belong to no negative pressure water storage apparatus field.
Background technique
At present, in cities and towns building water supply system,, for example, bulky, cost is higher, cause secondary pollution problems easily, no negative pressure water storage equipment occurred for fear of all inconvenience of adopting water reservoir or water storage box water storage to cause.No negative pressure equipment top is equipped with non-negative pressure valve.Existing non-negative pressure valve, usually on valve seat, be provided with the air ventilation valve, the air ventilation valve has a cylinder shape valve, the spool of valve body lower portion once is provided with sealing gasket, spool and bottom from top to bottom, the valve body middle part is provided with the following cross vent that communicates with valve body, valve body top is provided with the last cross vent that communicates with valve body, the valve body center upper portion is provided with the vertical vent that runs through cross vent and following cross vent, and the intersection that is positioned at vertical vent and following cross vent in the valve body is provided with seal boss.Traditional cylinder type spool is obstructed when moving up and down easily, causes and can not in time block exhaust port, also often because service time is long, causes problems such as seal spool is not tight.
Summary of the invention
According to above deficiency of the prior art, the technical problem to be solved in the present invention is: provide a kind of valve core movement flexible, the non-negative pressure valve of good sealing effect.
This technological scheme of using novel its technical problem of solution to be adopted is: this non-negative pressure valve, comprise valve body, spool and outer cover, and it is characterized in that: spool is a float-ball type, places in the valve body.
The float-ball type spool comprises ball float, seal ring, baffle plate and erosion control cover up and down, guide rod, and the erosion control cover is installed in the top of baffle plate, seal ring is installed in the below of baffle plate, ball float is installed in the seal ring below, and guide rod is installed in the ball float below, and following erosion control cover is fixed on outside the valve body bottom.During use, ball float rises under the floating function of tap water, when ball float props up seal ring, can cut off inside and outside path.
Valve body top is provided with upper flange and lower flange, is provided with sealing gasket between upper flange and the lower flange, and upper flange and lower flange are bolted to connection.
Seal ring is annular, and is porose on the erosion control cover wall, and the valve body bottom is provided with the hole.
The upper flange top is equipped with outer cover, and outer cover and pot with no negative pressure are connected and fixed.
Compared with prior art, non-negative pressure valve of the present invention has beneficial effect: by ball float that has guide rod and the seal ring that is fixed on the ring baffle are installed at valve core inside, ball float is installed in the seal ring below, during use, ball float rises under the tap water floating function, when propping up seal ring, cut off inner with the outside path of no negative pressure equipment, when the tap water liquid level reduced, ball float left seal ring, the path recovery that no negative pressure equipment is inner with outside.Because spool is the ball float that has guide rod, obstruction when having avoided motion and poorly sealed problem.
Description of drawings
Fig. 1 is a structural representation of the present invention,
Fig. 1 is the most preferred embodiment of non-negative pressure valve of the present invention, in Fig. 1: 17 times erosion control covers of 1 outer cover, 2 spool 3 upper flanges, 4 bolt 5 sealing gaskets, 6 lower flange 7 pot with no negative pressure, 8 erosion control cover 9,15,16 holes, 10 baffle plate 11 seal rings, 12 ball float 13 valve bodies, 14 guide rods
Embodiment
The present invention will be further described below in conjunction with accompanying drawing:
As shown in Figure 1, this non-negative pressure valve comprises valve body 13, spool 2 and outer cover 1, and spool 2 inside are equipped with ball float 12, seal ring 11, baffle plate 10 and erosion control cover 8 successively, and ball float 12 bottoms are provided with guide rod 14, and baffle plate 10 is an annular, on erosion control cover 8 walls porose 9.Seal ring 11 and baffle plate 10 are fixed on the valve body 13, and valve body 13 bottoms have hole 16, and erosion control cover 17 is installed down, on following erosion control cover 17 walls porose 15.Valve body 13 tops are fixed with upper flange 3.Be provided with sealing gasket 5 between the lower flange 6 at upper flange 3 and pot with no negative pressure 7 tops, and can be fixedly connected by bolt 4.Outer cover 1 is installed in whole upper flange 3 and above the lower flange 6.
Seal ring 5 and sealing gasket can adopt tightness such as rubber, resin material preferably.Ball float 12 adopts the Stainless Steel Ball of hollow.Splashing when erosion control cover 8 and following erosion control cover 17 can prevent the interior water-filling of pot with no negative pressure 7.Outer cover 1 can prevent that rainwater or dust from polluting tap water.
The present invention is installed in pot with no negative pressure 7 tops, and during pot with no negative pressure 7 water inlets, discharge in slit and the hole on erosion control cover 8 walls 9 between the hole 15 under air constantly passes through on erosion control cover 17 walls, hole 16, ball float 12 and the seal ring 11 of valve body 13 bottoms.When water level arrived ball float 12 certain positions, ball float 12 moved upward under the effect of floating function and guide rod 14.After ball float 12 and seal ring 11 tightly contact, pot with no negative pressure 7 interior air can not be discharged, and inner tap water begins to produce pressure.
When drawdown from the beginning, ball float 12 descends under action of gravity, and outside air enters pot with no negative pressure 7 inside, avoids occurring negative pressure.
Claims (5)
1, non-negative pressure valve comprises valve body, spool and outer cover, it is characterized in that: spool (2) is a float-ball type, places in the valve body (13).
2, according to the described non-negative pressure valve of claim 1, it is characterized in that: float-ball type spool (2) comprises ball float (12), seal ring (11), baffle plate (10) and erosion control cover (8), (17) up and down, guide rod (14), erosion control cover (8) is installed in the top of baffle plate (10), seal ring (11) is installed in the below of baffle plate (10), ball float (12) is installed in seal ring (11) below, and guide rod (14) is installed in ball float (12) below, and following erosion control cover (17) is fixed on outside valve body (13) bottom.
3, non-negative pressure valve according to claim 2, it is characterized in that: valve body (13) top is provided with upper flange (3) and lower flange (6), be provided with sealing gasket (5) between upper flange (3) and the lower flange (6), upper flange (3) is fixedlyed connected by bolt (4) with lower flange (6).
4, non-negative pressure valve according to claim 2 is characterized in that: seal ring (11) is annular, porose (9), (15) on erosion control cover (8), (17) wall, and valve body (13) bottom is provided with hole (16).
5, non-negative pressure valve according to claim 2 is characterized in that: it is characterized in that: upper flange (3) top is equipped with outer cover (1), and outer cover (1) is connected and fixed with pot with no negative pressure (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610045195 CN101093023A (en) | 2006-06-22 | 2006-06-22 | Non-negative pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610045195 CN101093023A (en) | 2006-06-22 | 2006-06-22 | Non-negative pressure valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101093023A true CN101093023A (en) | 2007-12-26 |
Family
ID=38991412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610045195 Pending CN101093023A (en) | 2006-06-22 | 2006-06-22 | Non-negative pressure valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101093023A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108680427A (en) * | 2018-06-19 | 2018-10-19 | 上海北裕分析仪器股份有限公司 | A kind of device and water bath heating system for slowing down water-bath steam raising |
| CN110566449A (en) * | 2019-08-23 | 2019-12-13 | 贵州乌江水电开发有限责任公司索风营发电厂 | Flow sensing device and hydroelectric pump |
-
2006
- 2006-06-22 CN CN 200610045195 patent/CN101093023A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108680427A (en) * | 2018-06-19 | 2018-10-19 | 上海北裕分析仪器股份有限公司 | A kind of device and water bath heating system for slowing down water-bath steam raising |
| CN108680427B (en) * | 2018-06-19 | 2024-01-23 | 上海北裕分析仪器股份有限公司 | Device for slowing down evaporation of water bath steam and water bath heating system |
| CN110566449A (en) * | 2019-08-23 | 2019-12-13 | 贵州乌江水电开发有限责任公司索风营发电厂 | Flow sensing device and hydroelectric pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20071226 |