CN2359530Y - Self-pressure globe valve - Google Patents
Self-pressure globe valve Download PDFInfo
- Publication number
- CN2359530Y CN2359530Y CN 99232826 CN99232826U CN2359530Y CN 2359530 Y CN2359530 Y CN 2359530Y CN 99232826 CN99232826 CN 99232826 CN 99232826 U CN99232826 U CN 99232826U CN 2359530 Y CN2359530 Y CN 2359530Y
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- CN
- China
- Prior art keywords
- valve
- valve seat
- seat
- core
- cover
- 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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Abstract
The utility model discloses a self-pressure globe valve, which is composed of a valve seat, a globe valve core, a sealing ring, a valve cover and a pressure increasing spring, wherein, the sealing surface of the valve seat is a conical surface and the valve cover is arranged on the valve seat. The valve cover and the valve seat are provided with communicated inner channels. The inner channel in the valve cover is provided with an inlet valve and an outlet valve. The sealing ring is connected with the globe valve core into a whole and is clamped and fixed by the valve seat and the valve cover. The pressure increasing spring is arranged between the globe valve core and the valve cover. Both ends of the valve seat are provided with a moving flange and a pressing ring which are connected with the valve seat in a thread mode. The sealing ring is arranged between the moving flange and the pressing ring. The utility model has the advantages of handy operation, good tightness, high durability, small valve body and convenient replacement and is suitable for water pipes with various calibers.
Description
The utility model relates to a kind of self-pressure type ball valve.
At present, common valve generally is to open and close by screw rod rotary lifting or rotational valve core, and its defective is: the first, because screw rod and hermetic unit long term wear are easy to generate water clock; The second, owing to the easy corrosion of screw rod rotating part causes operating difficulties; The 3rd, because screw rod is the screw thread straight line motion, cause valve body too high, excessive, valve pit easily exceeds the road surface; The 4th, because valve seat and flange are cast as one, cause and change effort of valve.
The purpose of this utility model provide a kind of operate light and handy, good airproof performance, durable, valve body is short and small, change light self-pressure type ball valve.
For achieving the above object, the technical solution that the utility model adopts is: self-pressure type ball valve of the present utility model, form by valve seat, spherical valve core, seal ring, valve gap, pressurized spring; The sealing surface of valve seat is a conical surface, and valve gap is located on the valve seat, and valve gap and valve seat are provided with the internal channel that communicates, and the internal channel in the valve gap is provided with two valves of turnover; Seal ring and spherical valve core are connected as a single entity, by valve seat and valve gap fastening; Be provided with pressurized spring between spherical valve core and the valve gap; The two ends of valve seat are provided with loose flange, the trim ring that is threaded with it, are provided with seal ring between loose flange and the trim ring.
Owing to adopted spherical valve core, sealing surface of seat is a conical surface, so the utlity model has good airproof performance, durable advantage; Owing to utilize differential water pressures to come opening/shutting valve, operation is light and handy, the short and small advantage of valve body so have again; Because the flange at valve seat two ends is to flexibly connect, it is lighter to change valve.
Below in conjunction with drawings and Examples the utility model is further described.
Accompanying drawing is the utility model embodiment's a structural representation.
The self-pressure type ball valve of accompanying drawing illustrated embodiment is made up of valve seat 1, spherical valve core 2, seal ring 3, valve gap 5, pressurized spring 6; The sealing surface of valve seat 1 is a conical surface, and valve gap 5 usefulness screws are installed on the valve seat 1, and valve gap 5 and valve seat 1 have the internal channel 9 that communicates, and the internal channel 9 in the valve gap 5 is provided with two valves 7 of turnover and 4; Seal ring 3 is connected as a single entity with spherical valve core 2, by valve seat 1 and valve gap 5 fastenings; Be provided with pressurized spring 6 between spherical valve core 3 and the valve gap 5; The two ends of valve seat 1 are provided with loose flange 12, the trim ring 10 that is threaded with it, are arranged with seal ring 11 between loose flange 12 and the trim ring 10.Open valve 7, throttle down 4, water inlet in the water pipe enters the upper plenum 8 of ball valve from internal channel 9, because the hydraulic pressure of the upper plenum 8 of ball valve is higher than the hydraulic pressure of cavity 13 down, be adjacent to the sealing surface of valve seat 1 so water pressure pushing spherical valve core 2 moves, pressurized spring 6 plays the effect of supercharging, enhanced leaktightness simultaneously.At this moment, ball valve is closed condition.Valve 7 and 4 is all closed, and the upper plenum 8 of ball valve is airtight, has filled with water in it, can't flow out, so the water inlet in the water pipe can't be pushed spherical valve core 2 open.Throttle down 7, Open valve 4, the hydraulic pressure of the following cavity 13 of ball valve is higher than the hydraulic pressure of upper plenum 8, and spherical valve core 2 is pushed in the water inlet in the water pipe open, and the water in the upper plenum 8 is extruded from internal channel 9 through valve 4, and ball valve just is opening state, and the water source is connected.Under this state, be lower than discharge pressure as occurring intake pressure in the water pipe suddenly, water in the outlet pipe refluxes, and water is from internal channel 9, enter ball valve upper plenum 8 through valve 4.Because the hydraulic pressure of spherical valve core 2 tops is bigger, add the tension force of pressurized spring 6, then promote spherical valve core 2 and close, so just can prevent the refluence of sealing.After hydraulic pressure recovered normally, ball valve can be opened automatically.When changing ball valve, the trim ring 11 at valve seat 1 two ends is all rotated to the inside, and then the loose flange 12 at two ends is also rotated to the inside, can change ball valve like a cork.Simultaneously, loose flange 12 is made the different specification of diameter, just can adapt to the water pipe of multiple bore, reaches multi-purpose valve, has simplified the model of ball valve.
Claims (2)
1, a kind of self-pressure type ball valve is made up of valve seat (1), spherical valve core (2), seal ring (3), valve gap (5), pressurized spring (6), it is characterized in that: described valve seat (1) sealing surface is a conical surface; Described valve gap (5) is located on the valve seat (1), and valve gap (5) and valve seat (1) are provided with the internal channel (9) that communicates, and the internal channel (9) in the valve gap (5) is provided with valve (4) and (7); Described seal ring (3) is connected as a single entity with spherical valve core (2), by valve seat (1) and valve gap (5) fastening; Be provided with pressurized spring (6) between described spherical valve core (3) and the valve gap (5).
2, ball valve according to claim 1 is characterized in that: the two ends of valve seat (1) are provided with loose flange (12), the trim ring (10) that is threaded with it, are provided with seal ring (11) between loose flange (12) and the trim ring (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99232826 CN2359530Y (en) | 1999-02-12 | 1999-02-12 | Self-pressure globe valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99232826 CN2359530Y (en) | 1999-02-12 | 1999-02-12 | Self-pressure globe valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2359530Y true CN2359530Y (en) | 2000-01-19 |
Family
ID=34021431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99232826 Expired - Fee Related CN2359530Y (en) | 1999-02-12 | 1999-02-12 | Self-pressure globe valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2359530Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111011185A (en) * | 2020-01-02 | 2020-04-17 | 何小红 | Building outer wall vegetation water circulating system |
-
1999
- 1999-02-12 CN CN 99232826 patent/CN2359530Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111011185A (en) * | 2020-01-02 | 2020-04-17 | 何小红 | Building outer wall vegetation water circulating system |
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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 |