CN201014042Y - Piston type cut-off compression release valve with reverse acting spiral assistant linkage - Google Patents
Piston type cut-off compression release valve with reverse acting spiral assistant linkage Download PDFInfo
- Publication number
- CN201014042Y CN201014042Y CNU2007200676895U CN200720067689U CN201014042Y CN 201014042 Y CN201014042 Y CN 201014042Y CN U2007200676895 U CNU2007200676895 U CN U2007200676895U CN 200720067689 U CN200720067689 U CN 200720067689U CN 201014042 Y CN201014042 Y CN 201014042Y
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- valve
- rod
- piston
- nuts
- flap
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- Expired - Fee Related
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Abstract
The utility model relates to a piston-typed stop pressure releasing valve with a reverse screw pair rod mechanism. The utility model comprises a stop mechanism, a pressure releasing mechanism, a valve body and a valve cavity. The stop mechanism contains a handwheel, a valve rod with reverse threads, nuts, an anti-rotation guide rod, a push rod, a stop valve flap, a first sealing ring and bolts. The handwheel is connected with the valve rod with reverse thread. The nuts are sleeved on the valve rod with reverse thread; and the reverse thread and two nuts form two screw pairs. The anti-rotation guide rod goes through the two nuts and connects thereof together. The two nuts are connected with one end of the pushing rod respectively, while the other end of the pushing rod is connected with the stop valve flap with the first sealing ring, which is connected with the stop valve flap by the bolts. The pressure releasing mechanism consists of a hollow cylindrical sleeve, a spring, a piston, a second sealing ring and a vent hole. The utility model can not only realize the stop function effectively, but also ensure the comparative stability of the outlet pressure.
Description
Technical field
The utility model relates to a kind of valve of field of mechanical technique, particularly a kind of piston type cut-off decompression valve that has the secondary linkage of reverse acting spiral.
Background technique
In the daily life in city, need to install decompressor on the pipeline of a lot of life usefulness, in the water supply and hot water system as tall building, in order to satisfy the needs of top water supply, whole system pressure is very highly fixed, and lower level just the too high problem of hydraulic pressure occurred like this.Hydraulic pressure is too high will to cause many problems, as waste water, is prone to water hammer, cause the impact shock of pipeline, easy seepage of watering equipment and damage etc.Fluid circuits such as other oil, chemical industry, mining also usually need decompressor, when in very dark coal mine shaft, sending water by ground, when mine water is pressed with up to every square centimeter kilograms up to a hundred, also need to adorn pressure regulating equipment.For the way that addresses the above problem simple economy is installed reduction valve exactly on pipeline.But more existing reduction valve can not well satisfy usage requirement at present, Piston reducing valve complex structure price as some suitable vapor lines is higher, and be not suitable for liquid medium, some can be used for the decompression wind inlet variation in pressure of liquid medium, suck outlet pressure and change than ball and not by function.Thereby, if design a kind of multi-functional valve that can realize simultaneously by, pressure-reducing function, just can solve the problems referred to above.
Find through literature search, set forth a kind of reduction valve in the Chinese patent patent No. 02248506.6 prior art.This model utility relates to the reduction valve that a kind of pressurized container is used.It comprises valve body, valve body is provided with intake tunnel and disappointing passage, also be provided with a spool in the described valve body, one end of spool stretches out valve body, the other end of spool passes intake tunnel, the valve core that is positioned at the intake tunnel place radially is provided with a passage that runs through spool along spool, and this passage can be connected or the shutoff intake tunnel with the rotation of spool, also is provided with seal arrangement between described spool and the valve body wall.But this utility model patent is realized reducing pressure by rotational valve core, and it can not effectively realize can not stablizing the pressure of importing and exporting fluid simultaneously by function.
Summary of the invention
The purpose of this utility model is at deficiency of the prior art, a kind of piston type cut-off decompression valve that has the secondary linkage of reverse acting spiral is provided, it is integrated end and decompression, not only can effectively realize by function, and can guarantee that the pressure that exports is more stable.
The utility model realizes that according to following technological scheme the utility model comprises: disabling mechanism, the mechanism of decompressor, valve body and valve pocket.Disabling mechanism and valve body link together, and the mechanism of decompressor and valve body are fixed, and the mechanism of decompressor is in valve pocket.
Described disabling mechanism comprises: handwheel, the valve rod that has reverse thread, nut, anti-rotation guide rod, push rod, by flap, first seal ring, bolt.Handwheel links together with the valve rod that has reverse thread, nut sleeve is having on the valve rod of reverse thread, reverse thread and two nuts form screw pair, the anti-rotation guide rod passes two nuts and they is linked together, two nuts are connected with an end of push rod respectively, the push rod the other end with is connected by flap, on flap, first seal ring is housed, first seal ring by bolt with end flap and be connected.
The described mechanism of decompressor comprises cylinder type hollow sleeve, spring, piston, second seal ring, vent.One end of spring links to each other with valve body, and the other end links to each other with piston on being enclosed within the cylinder type hollow sleeve, has a vent on the wall of this part valve pocket that piston is housed, and second seal ring is connected with piston on being enclosed within the cylinder type hollow sleeve.
The utility model is realized by effect and decompression:
When needing to end, rotate handwheel, two nuts are under the effect of reverse thread and anti-rotation guide rod, from screw rod two side direction intermediary movementses, drive two link motions simultaneously respectively, make to move right by flap, when flap contacts with hollow cylinder, under seal ring and effect mechanical force, the passage of hollow cylinder is shut, thereby played the effect that ends.
The import highly pressurised liquid enters through import, hollow parts through flap flows to outlet, the pressure of outlet end liquid will act on the piston, and generation thrust left, when the thrust of outlet during greater than the tension force of spring, spring begins compression, and flap and left side are diminished by the distance of flap, plays the effect of lowering outlet pressure.When outlet pressure during less than spring tension, spring promotes piston and the tubulose flap moves right, and makes the import gap become big, keeps outlet and keeps certain pressure, thereby play the effect of decompression.
Thereby the utility model utilization has the connecting rod mechanism urges of reverse acting spiral pair moves realization by effect by flap, and utilize the piston type decompressor to realize decompression, the utility model will combine by effect and decompression, realized the multi-functional of valve, for the control of pipeline in the industrial production has brought facility, can reduce quantity and link that valve is installed, reduce the consumption of the energy and reveal waste.
Description of drawings
Fig. 1 the utility model cut-off decompression valve general structure schematic representation
Fig. 2 cut-off decompression valve is realized by the position view of doing the time spent
Position view when Fig. 3 cut-off decompression valve is realized decompression
Among the figure, handwheel 1, the valve rod 2 that has reverse thread, two nuts 3 and 16, anti-rotation guide rod 4, push rod 5, by flap 6, first seal ring 7, bolt 8, cylinder type hollow sleeve 9, vent 10, piston 11, second seal ring 12, spring 13, valve body 14 and valve pocket 15
Embodiment
Below embodiment of the present utility model is elaborated: present embodiment is being to implement under the prerequisite with technical solutions of the utility model; provided detailed mode of execution and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
As Fig. 1, Fig. 2, shown in Figure 3, present embodiment comprises: disabling mechanism, the mechanism of decompressor, valve body 14 and valve pocket 15.Disabling mechanism and valve body 14 link together, and the mechanism of decompressor and valve body 14 are fixing, can move back and forth in valve pocket 15.
Described disabling mechanism comprises: handwheel 1, the valve rod 2 that has reverse thread, two nuts 3 and 16, anti-rotation guide rod 4, push rod 5, by flap 6, first seal ring 7, bolt 8.Handwheel 1 links together with the valve rod 2 that has reverse thread, one of them nut 3 is enclosed within on the valve rod 2 that has reverse thread, reverse thread and two nuts 3,16 form screw pair, anti-rotation guide rod 4 passes two nuts 3,16 and they is linked together, two nuts 3,16 are connected with an end of push rod 5 respectively, push rod 5 the other ends with is connected by flap 6, first seal ring, 7, the first seal rings 7 are housed by bolt 8 with end flap 6 and be connected on flap 6.
The described mechanism of decompressor comprises cylinder type hollow sleeve 9, vent 10, piston 11, second seal ring 12, spring 13.One end of spring 13 links to each other with valve body 14, the other end links to each other with piston 11 on being enclosed within cylinder type hollow sleeve 9, be connected with piston 11 on being enclosed within cylinder type hollow sleeve 9 having a vent 10, the second seal rings 12 on the wall of this part valve pocket 15 that piston 11 is housed.
Use the utility model to realize when function, rotate handwheel 1, drive two nuts 3 under the effect of reverse thread and anti-rotation guide rod 4, along valve rod 2 move toward one another, nut 3 drives push rod 5 and moves right respectively, makes to move right by flap 6, when when flap 6 contacts with hollow cylinder 9, under first seal ring 7 and effect mechanical force, the passage of hollow cylinder 9 is shut, thereby played the effect that ends.
Decompression is realized: before hollow cylinder 9 is not closed, the import highly pressurised liquid enters through import, hollow parts through hollow cylinder 9 flows to outlet, the pressure of outlet end liquid will act on the piston 11, and produce left thrust, when the thrust of outlet during greater than the tension force of spring 13, spring 13 begins compression, and hollow cylinder 9 and left side are diminished by the distance of flap 6, play the effect of lowering outlet pressure.When outlet pressure during less than spring 13 tension force, spring promotes piston and hollow cylinder 9 moves right, and makes the import gap become big, because valve body 14 has a vent 10, so outlet can keep certain pressure, thereby plays the effect of decompression.
Claims (2)
1. piston type cut-off decompression valve that has the secondary linkage of reverse acting spiral, comprise: disabling mechanism, the mechanism of decompressor, valve body and valve pocket, it is characterized in that, disabling mechanism and valve body link together, the mechanism of decompressor and valve body are fixed, the mechanism of decompressor is in valve pocket, described disabling mechanism comprises: handwheel, the valve rod that has reverse thread, nut, the anti-rotation guide rod, push rod, by flap, first seal ring, bolt, handwheel links together with the valve rod that has reverse thread, nut sleeve is having on the valve rod of reverse thread, reverse thread and two nuts form screw pair, the anti-rotation guide rod passes two nuts and they is linked together, and two nuts are connected with an end of push rod respectively, the push rod the other end be connected by flap, first seal ring is housed on the flap, first seal ring by bolt be connected by flap.
2. the piston type cut-off decompression valve that has the secondary linkage of reverse acting spiral according to claim 1, it is characterized in that, the described mechanism of decompressor comprises cylinder type hollow sleeve, spring, piston, second seal ring, vent, one end of spring links to each other with valve body, the other end links to each other with piston on being enclosed within the cylinder type hollow sleeve, have a vent on the wall of this part valve pocket that piston is housed, second seal ring is connected with piston on being enclosed within the cylinder type hollow sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200676895U CN201014042Y (en) | 2007-03-08 | 2007-03-08 | Piston type cut-off compression release valve with reverse acting spiral assistant linkage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200676895U CN201014042Y (en) | 2007-03-08 | 2007-03-08 | Piston type cut-off compression release valve with reverse acting spiral assistant linkage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201014042Y true CN201014042Y (en) | 2008-01-30 |
Family
ID=39025836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200676895U Expired - Fee Related CN201014042Y (en) | 2007-03-08 | 2007-03-08 | Piston type cut-off compression release valve with reverse acting spiral assistant linkage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201014042Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167445A (en) * | 2017-11-30 | 2018-06-15 | 北京天恒长鹰科技股份有限公司 | For the double remaining valvings of differential leading screw of near space dirigible |
-
2007
- 2007-03-08 CN CNU2007200676895U patent/CN201014042Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167445A (en) * | 2017-11-30 | 2018-06-15 | 北京天恒长鹰科技股份有限公司 | For the double remaining valvings of differential leading screw of near space dirigible |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080130 |