CN203488723U - Fluid stop valve - Google Patents
Fluid stop valve Download PDFInfo
- Publication number
- CN203488723U CN203488723U CN201320479641.0U CN201320479641U CN203488723U CN 203488723 U CN203488723 U CN 203488723U CN 201320479641 U CN201320479641 U CN 201320479641U CN 203488723 U CN203488723 U CN 203488723U
- Authority
- CN
- China
- Prior art keywords
- valve
- flap
- seal groove
- valve rod
- rod
- 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
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 15
- 239000000945 filler Substances 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 239000000741 silica gel Substances 0.000 claims description 8
- 229910002027 silica gel Inorganic materials 0.000 claims description 8
- 238000010030 laminating Methods 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 abstract description 4
- 239000012535 impurity Substances 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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- Taps Or Cocks (AREA)
Abstract
The utility model discloses a fluid stop valve which comprises a valve body, a valve rod, a valve core and a handwheel. The valve body contains a valve seat and a vale cover. The valve cover is threadingly connected with the upper end of the valve seat. The valve rod passes through the middle of the valve cover and is in screw-thread fit with the valve cover. The lower end of the valve rod is connected with the valve core. The upper end of the valve rod is provided with the handwheel. The valve core is connected with a valve clack in the valve seat. The upper portion of the valve cover is provided with a valve rod seal groove, inside which a filling material and several closely-arranged metal balls are installed. The valve rod passes through the valve rod seal groove and is directly contacted with the metal balls. The valve clack is provided with a valve clack seal groove, inside which a filling material and several closely-arranged valve clack balls are installed. The valve clack balls fit with the edge of the valve core. According to the utility model, sliding friction between a valve rod and a valve core and between a valve core and a valve clack in a traditional stop valve is changed into rolling friction, thus minimizing frictional resistance in the valve and reducing operational difficulty of the stop valve. In addition, impurities are not easy to adhere to a sealing surface by the rolling mode, and the sealing surface cooperates with the sealing filler so as to guarantee sealing performance of the stop valve.
Description
Technical field
The utility model relates to valve technology field, relates in particular to a kind of fluid stop valve.
Background technique
Stop valve refers to the valve that closure member (flap) moves along valve seat center line, flap is along the center line moving linearly of valve seat, because valve rod unlatching or the shutoff stroke of such valve are relatively short, and there is very cutting function reliably, again due to the variation of valve seat port and the stroke of flap relation in direct ratio, be very suitable for the adjusting to flow, therefore, such stop valve valve that dams is suitable as cut-out or adjusting and throttling and uses very much.
Stop valve belongs to forced seal formula valve, so when valve closing, must exert pressure to flap, with forced seal face, does not leak.Special when medium enters in valve by flap below, the required resistance overcoming of steering force, has comprised the friction of valve rod and filler and the thrust being produced by the pressure of medium, thus the force rate of closing valve to open the power of valve large.For above-mentioned reasons, when manufacturing and designing stop valve, it is large that the diameter of selected valve rod is wanted, otherwise the fault of valve rod bending can occur.
Summary of the invention
The technical problems to be solved in the utility model be to provide a kind of simple in structure, valve opening and closing resistance is little and guarantee the fluid stop valve of sealability.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of fluid stop valve, comprises valve body, valve rod, spool, handwheel; Valve body comprises valve seat and valve gap, and valve gap is threaded with valve seat upper end; Valve rod through in the middle of valve gap and with valve gap screw-thread fit, valve rod lower end is connected with spool, valve rod upper end is provided with handwheel; Spool is connected with flap in valve seat; Valve gap top is provided with valve stem seal groove, and filler and some compact arranged metal balls are housed in groove, and valve rod passes valve stem seal groove and directly contacts with metal balls; Flap is provided with flap seal groove, and filler and some compact arranged flap spin are housed in groove; Flap spin and spool edge laminating.
As preferably, spool bottom is provided with the Sealing for fitting tightly with flap roller surface.
As preferably, Sealing is that silica gel material is made.
As preferably, the filler being equipped with in valve stem seal groove is silica gel piece.
As preferably, the filler being equipped with in flap seal groove is silica gel piece.
The beneficial effects of the utility model are:
By traditional stop valve inner valve stem and valve gap, the sliding friction between spool and flap changes rolling friction into, has reduced surface friction drag in valve, has reduced the operation easier of stop valve.And this rolling mode makes sealing surface be not easy to adhere to impurity, coordinates with stuffing box packing, has guaranteed the sealing of stop valve.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the utility model embodiment's structural representation.
In figure, 1-handwheel, 2-valve rod, 3-valve stem seal portion ball, 4-valve stem seal portion filler, 5-valve gap, 6-spool, 7-flap sealed department ball, 8-flap sealed department filler, 9-valve seat.
Embodiment
As shown in Figure 1, be a kind of embodiment's of fluid stop valve cross-sectional schematic.This stop valve is comprised of valve body, valve rod, spool, handwheel.
Valve body is comprised of valve seat 9 and valve gap 5, and valve seat 9 upper ends are connected by nut with valve gap 5.Valve rod 2 is middle through reaching valve seat from valve gap 5, and valve rod 2 and valve gap 5 screw-thread fit, be provided with handwheel 1 in order to operate stop valve on the top of valve rod 2.
Valve rod on valve gap 5 tops is provided with valve stem seal groove through in chamber, valve stem seal portion filler 4 and valve stem seal portion ball 3 are set in valve stem seal groove, and the surface on valve rod 2 tops directly contacts with valve stem seal portion ball 3, can reduce the rotational resistance of valve rod 2 when operated valve opens and closes.
In valve seat 9, be provided with flap seal groove, in groove, comprise flap sealed department filler 8 and flap sealed department ball 7, in the bottom of valve rod 2, be provided with the spool 6 for being sealed and matched with flap sealed department ball 7, and in the bottom of spool 6, be provided with the sealing gasket made from silica gel.Sealing gasket and closely cooperating of flap sealed department ball 7 by spool 6 bottoms can be realized the through and off of stop valve.
The direction of reference fluid is wanted in the installation of stop valve, notes keeping the low in and high out of pipeline fluid, namely flows through from bottom to top valve seat mouth.Thereby the object of installing is like this to reduce valve body inner fluid resistance to reduce valve opening and closing power, can also remain on valve closing time simultaneously valve rod, stuffing box not with medium contact, reduce the generation that damages and leak.
In the present embodiment, the ball of valve stem seal portion and flap sealed department all adopts 304# stainless steel to make, and stuffing box packing is silica gel piece.
Above-described the utility model mode of execution, does not form the restriction to the utility model protection domain.Any modification of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in claim protection domain of the present utility model.
Claims (5)
1. a fluid stop valve, comprises valve body, valve rod, spool, handwheel; Described valve body comprises valve seat and valve gap, and described valve gap is threaded with valve seat upper end; Described valve rod through in the middle of valve gap and with valve gap screw-thread fit, valve rod lower end is connected with spool, valve rod upper end is provided with handwheel; Described spool is connected with flap in valve seat; It is characterized in that: described valve gap top is provided with valve stem seal groove, filler and some compact arranged metal balls are housed in groove, valve rod passes valve stem seal groove and directly contacts with metal balls; Described flap is provided with flap seal groove, and filler and some compact arranged flap spin are housed in groove; Described flap spin and spool edge laminating.
2. fluid stop valve according to claim 1, is characterized in that: described spool bottom is provided with the Sealing for fitting tightly with flap roller surface.
3. fluid stop valve according to claim 1, is characterized in that: described Sealing is that silica gel material is made.
4. fluid stop valve according to claim 1, is characterized in that: the filler being equipped with in described valve stem seal groove is silica gel piece.
5. fluid stop valve according to claim 1, is characterized in that: the filler being equipped with in described flap seal groove is silica gel piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320479641.0U CN203488723U (en) | 2013-08-07 | 2013-08-07 | Fluid stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320479641.0U CN203488723U (en) | 2013-08-07 | 2013-08-07 | Fluid stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203488723U true CN203488723U (en) | 2014-03-19 |
Family
ID=50259558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320479641.0U Expired - Fee Related CN203488723U (en) | 2013-08-07 | 2013-08-07 | Fluid stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203488723U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017167223A1 (en) * | 2016-03-31 | 2017-10-05 | 邹岳明 | Spool assembly and shut-off valve |
| CN113932061A (en) * | 2021-11-26 | 2022-01-14 | 江苏润鹏机械科技有限公司 | Conical valve clack stop valve |
-
2013
- 2013-08-07 CN CN201320479641.0U patent/CN203488723U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017167223A1 (en) * | 2016-03-31 | 2017-10-05 | 邹岳明 | Spool assembly and shut-off valve |
| CN113932061A (en) * | 2021-11-26 | 2022-01-14 | 江苏润鹏机械科技有限公司 | Conical valve clack stop valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Fluid stop valve Effective date of registration: 20200713 Granted publication date: 20140319 Pledgee: Beijing State Owned Financial Leasing Co.,Ltd. Pledgor: WUHU TUNGHSU PHOTOELECTRIC SCIENCE AND TECHNOLOGY Co.,Ltd. Registration number: Y2020990000738 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 |