CN2188146Y - Positive-pressure ball-cock - Google Patents
Positive-pressure ball-cock Download PDFInfo
- Publication number
- CN2188146Y CN2188146Y CN 94210808 CN94210808U CN2188146Y CN 2188146 Y CN2188146 Y CN 2188146Y CN 94210808 CN94210808 CN 94210808 CN 94210808 U CN94210808 U CN 94210808U CN 2188146 Y CN2188146 Y CN 2188146Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- water
- spool
- float
- 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)
Abstract
The utility model relates to a positive-pressure ball cock comprising a valve body, a valve core, a valve gate, a ball float and a connecting rod thereof. An inner and an external cavities with diameters in inequable sizes, which are communicated with each other, are arranged in the valve body, and the valve core goes through the inner cavity of the valve body to be connected with the valve gate on the upper part of the external cavity of the valve body. The dead weight or the buoyancy generated in the water of the ball float is used to drive the valve core and the valve gate to open or close a water inlet thereof. When the valve gate is closed, the valve gate can be closed tightly because of direct tap water pressure, and the water can not be leaked. The utility model has the advantages of simple and reasonable structure, low cost, long service life, reliable work, etc.
Description
The utility model relates to the float valve technical field, particularly a kind of positive-pressure type float valve.
Existing float valve is made up of valve body, spool, valve, ball float and connecting rod thereof, be provided with the inner chamber and the exocoel that are interconnected in the valve body, spool one end and connecting rod flexibly connect, and connecting rod links to each other with the valve body upper end, and the spool the other end is connected with valve at body cavity.It is that the buoyancy that utilizes ball float to produce in water is outwards closed the water inlet by lever drives spool, valve from the lining, when water level in water pool drops to certain altitude, moves inward by lever drives spool, valve by ball float weight and to open the water inlet.When above-mentioned float valve was closed, the power of closing that valve is obtained from ball float buoyancy was opposite with the formed pressure direction of valve pocket external and internal pressure difference with tap water pressure, thereby, required ball float volume is big, remove to offset above-mentioned two pressure to produce bigger buoyancy, thereby, the valve water inlet is closed tightly.But when tap water pressure was higher, for example, in the deep of night, tap water pressure was very high, and at this moment, the power of closing that ball float buoyancy is produced may the phenomenon of still leaking after valve cuts out occur less than above-mentioned two pressure.
The purpose of this utility model be to provide in order to overcome above-mentioned deficiency a kind of simple and reasonable, the ball float volume is little, watertight positive-pressure type float valve.
The utility model is achieved in that a kind of positive-pressure type float valve, comprise valve body, spool, valve, ball float and connecting rod thereof, spool one end and connecting rod flexibly connect, connecting rod and valve body upper end flexibly connect, be provided with inner chamber and the exocoel that interconnects along axial direction in the valve body, the spool the other end passes body cavity and is connected with valve on its exocoel top.
Described body cavity diameter is less than the exocoel diameter.Thereby, form a water intake with the level in jointing place, the inside and outside chamber of valve body.Be provided with valve, spool guiding device in valve body exocoel upper wall portions.It is to be provided with three uniform guide ribs at least in valve body exocoel upper wall portions that wherein a kind of structure forms.Ball lever one end is threaded with ball float, and its other end is connected with the connecting rod threaded one end.The valve material therefor can be metal or rubber or plastics.
In order to adapt to the installation requirement under the different operating environment, for example, when cistern was used, the valve body of this float valve can be made the upper and lower two-part structure to be threaded.
Working principle of the present utility model and process are as follows: float valve is to be used for the water level of water container is controlled, for example, and the control of the water level of pond or water tank.When water level in water pool is reduced to its markings when following, ball float slowly leaves the water surface, under the ball float action of gravity, moves down by connecting rod drive spool, valve, valve leaves water intake, and tap water flows in the pond by inner chamber and the water outlet that is installed in the valve body sidepiece.When water level in water pool rises to the water-line target line when above, ball float is again in the immersion water and produce the buoyancy that increases gradually.When this buoyancy increases to certain value, just can drive spool, valve moves up and closes its water intake by connecting rod.Because it is identical to close power and tap water pressure and pressure direction that inside and outside differential water pressures produced, thereby, because of directly being subjected to tap water pressure, valve closes closely during valve closing, leakage phenomenon can not take place.The volume of ball float this shows that the required power of closing of this float valve is also smaller, so can be done smallerly.
Advantage of the present utility model is simple and reasonable, good seal performance, water-tight behind low cost of manufacture, the valve closing water intake, long service life, reliable operation.
Fig. 1 is the utility model structural representation;
Fig. 2 is the worm's eye view after Fig. 1 removes ball float and connecting rod.
By following embodiment the utility model is further elaborated.
With reference to Fig. 1, shown in Figure 2, valve body (8), spool (6), connecting rod (3), ball lever (2) form by plastic pressure injection, and ball float (1) adopts hollow copper ball, and valve (7) adopts sealing rubber ring.Be provided with inner chamber (4) and the exocoel (9) that interconnects along axial direction in the valve body (8), inner chamber (4) is positioned at the middle and upper part, and exocoel (9) is positioned at the middle and lower part.Inner chamber (4) upper diameter is a bit larger tham spool (6) diameter, and spool (6) is had leading role.Inner chamber (4) middle and lower part diameter is bigger and be connected with the water outlet (5) that is positioned at valve body (8) middle part than its upper diameter.Exocoel (9) diameter is bigger than inner chamber (4) middle and lower part diameter, thereby forms the water intake of a band inverted cone surface step in jointing place, the inside and outside chamber of valve body (8) (4,9).Be provided with four uniform guide ribs (12) in exocoel (9) upper wall portions, valve (7) is produced leading role.Valve (7) is sleeved on spool (6) underpart.Valve body (8) underpart has outside thread to be threaded with external water pipe.Ball lever (2) one ends are threaded with ball float (1), and the other end is connected with connecting rod (3) threaded one end, and connecting rod (3) the other end and valve body (8) bottom righthand side are movably connected on (10) and locate.Spool (6) one ends and connecting rod (3) are movably connected on (11) and locate.When the positive-pressure type float valve adopts water intake at last mounting structure, then only need the active connection place (10) of disassemble connecting rods (3) and valve body (8) upper right side, and valve body (8) left upper end (not showing among Fig. 1) is changed in its active connection place get final product.
Claims (4)
1, a kind of positive-pressure type float valve, comprise valve body, spool, valve, ball float and connecting rod thereof, spool one end and connecting rod flexibly connect, connecting rod and valve body upper end flexibly connect, be provided with inner chamber and the exocoel that interconnects along axial direction in the valve body, it is characterized in that the described spool the other end passes body cavity and is connected with valve on its exocoel top.
2, float valve according to claim 1 is characterized in that described body cavity diameter is less than the exocoel diameter.
3, float valve according to claim 1 is characterized in that being provided with valve, spool guiding device in valve body exocoel upper wall portions.
4,, it is characterized in that being provided with three uniform guide ribs at least in valve body exocoel upper wall portions according to claim 1 or 3 described float valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94210808 CN2188146Y (en) | 1994-05-04 | 1994-05-04 | Positive-pressure ball-cock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94210808 CN2188146Y (en) | 1994-05-04 | 1994-05-04 | Positive-pressure ball-cock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2188146Y true CN2188146Y (en) | 1995-01-25 |
Family
ID=33828115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94210808 Expired - Fee Related CN2188146Y (en) | 1994-05-04 | 1994-05-04 | Positive-pressure ball-cock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2188146Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108050296A (en) * | 2017-12-15 | 2018-05-18 | 安徽铜都流体科技股份有限公司 | A kind of autocontrol ball-cock assembly |
-
1994
- 1994-05-04 CN CN 94210808 patent/CN2188146Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108050296A (en) * | 2017-12-15 | 2018-05-18 | 安徽铜都流体科技股份有限公司 | A kind of autocontrol ball-cock assembly |
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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 |