CN208074173U - Water-driven overhauls sealing piston formula the needle valve - Google Patents
Water-driven overhauls sealing piston formula the needle valve Download PDFInfo
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- CN208074173U CN208074173U CN201820376212.3U CN201820376212U CN208074173U CN 208074173 U CN208074173 U CN 208074173U CN 201820376212 U CN201820376212 U CN 201820376212U CN 208074173 U CN208074173 U CN 208074173U
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Abstract
The utility model provides a kind of water-driven maintenance sealing piston formula the needle valve.The needle valve is taken in one end of valve body equipped with import valve body, movable valve base and driving, the inner cavity of valve body is equipped with kuppe, sealing ring pressing plate, sealing ring, piston packing and piston packing pressing plate, interior space that kuppe is constituted is built-in rack fixed frame, piston, drive rack, leading truck, guide pad, drive shaft and driving gear, the other end of valve body is connected equipped with mouse cage, fixed valve base, fixed valve base with outlet valve body.The valve uses driving power source of the upstream high water as movable valve base, saves the energy, and maintenance sealing is grouped together with piston valve, reduces the workload of valve site installation test and repair.
Description
Technical field
The utility model is related to arrive valve field, it is related specifically to a kind of water-driven maintenance sealing piston formula tune stream tune.
Background technology
Piston valve is widely used in supply and drain water system, is needed control valve to be followed by loine pressure and the occasion of flow, is passed through
Control the relative position size of sealing ring and fixed valve base component on mobile piston in piston valve, realization downstream pressure or flow
Control.Currently used piston type the needle valve is the area of throttle orifice on the mobile change sleeve by piston, to real
Existing High Pressure Difference lowers stream, pressure regulation and the function of eliminating cavitation erosion.Because of its distinctive function, so expensive.But simultaneously because its
Sleeve is fixed in valve body baffle, cannot be dismantled so that the valve actually often uses under small guide vane, affects valve
Degree of regulation.Furthermore common piston type the needle valve is that band does not overhaul seal valve seat, in order to ensure the safety of system
Reliability service is both needed to before piston valve plus matches a service valve.201420171672 .4 of Chinese patent literature discloses one kind
More spray orifice valves, the patent is by blocking the throttling hole number on sleeve, and the aperture of intensifying valve is to increase its regulation performance, but this
Sample be easy to cause the throttle orifice on sleeve and is blocked by the impurity in water, to influence normal use.How piston type tune is improved
The degree of regulation of pressure regulating valve is flowed, how the sleeve of cleaning replacement piston type current-regulating voltage-regulating valve easy to disassemble is to need to solve
The problem of.
Invention content
The purpose of this utility model is to provide a kind of water drives that the service valve that need to be equipped with and piston valve are grouped together
Dynamic maintenance sealing piston formula the needle valve.
To achieve the above object, the technical solution of the utility model is：
A kind of water-driven maintenance sealing piston formula the needle valve, including：Import valve body, movable valve base, driving take over, valve
Body, kuppe, sealing ring pressing plate, sealing ring, leading truck, guide pad, mouse cage, fixed valve base, outlet valve body, rack fixed frame,
Piston, drive shaft, driving gear and drive rack, the needle valve are equipped with import valve body, import in one end of valve body
Movable valve base is housed, valve body upper end is taken over equipped with driving, and the inner cavity of valve body is equipped with kuppe, between kuppe and valve body in valve body
It is respectively provided with sealing ring pressing plate, sealing ring, piston packing and piston packing pressing plate, the interior space that kuppe is constituted is built-in
There are rack fixed frame and a piston, drive rack is housed on rack fixed frame, one end of drive rack is equipped with leading truck, on leading truck
Equipped with guide pad, guide pad is in contact with drive rack, and drive rack is meshed with the driving gear of dress on the driving shaft, valve body
The other end be equipped with mouse cage, the mouse cage other end be equipped with fixed valve base, fixed valve base with export valve body be connected.
Compared with prior art, the good effect of the utility model is：
1, the valve uses driving power source of the upstream high water as movable valve base, saves the energy；
2, maintenance sealing is grouped together by the valve with piston valve, reduces the workload of valve site installation test；
3, the valve uses telescopic movable valve base and makees to overhaul sealing, driving of the fluid medium pressure to movable valve base
It influences almost nil, it is easy to accomplish driving, reliability greatly enhance, and especially it is small more to embody its driving force for big orifice pipeline
Feature；
4, the valve overall structure length appropriate for increasing piston valve, keeps the bearing position of piston valve relatively wide,
Stability enhances；
5, the valve can realize front and back combination regulatory function according to the aisle spare suitable control needed to import.
Description of the drawings
Fig. 1, water-driven overhaul sealing piston formula the needle valve structural schematic diagram.
Specific implementation mode
Clear, complete description further is carried out to the technical solution of the utility model below in conjunction with the accompanying drawings.
Referring to attached drawing 1, when the needle valve is worked, the water in pipeline enters from import valve body 1, through being mounted in valve body
After kuppe 5 on 4 enters the annular channel of 4 inner cavity of valve body, by the kuppe 5 of the other end through mouse cage 10 from outlet valve body 12
Outflow.
When needing to reduce the pressure or flow of current-regulating voltage-regulating valve outlet, the driving mechanism of the needle valve drives drive shaft
15 rotations, rotate at this point, drive shaft 15 drives mounted in driving gear 16 thereon, and driving gear 16 then drives to be fixed mounted in rack
It is moved on frame 13 and with the drive rack 17 that is meshed of driving gear 16 to outlet 12 direction of valve body, by being mounted in leading truck when movement
Guide pad 9 on 8 is oriented to.When drive rack 17 moves, drives the piston 14 for being fixed on 17 end of drive rack and be mounted in
Piston packing pressure on piston 14 is pulled the piston packing 18 on 19 and is moved to same direction, realizes and reduces and fixed valve base 11
The distance between, to reach the outlet stream area for reducing valve, realize the purpose of the reduction of flow or pressure after valve.
Flow after needing to increase valve or when pressure, by above process reverse operating, that is, drives gear 16 to drive
Drive rack 17 is moved to the direction of import valve body 1, while being moved to same direction with piston 14, and increase piston seal is reached
The distance between 18 and fixed valve base 11 are enclosed, realize flow or the increased purpose of pressure after valve.
When piston valve needs repairing, the input end of hydrodynamic(al) system is connected with driving take over 3, pushes movable valve base 2
It moves to outlet 12 direction of valve body, until the sealing ring 7 being pressed onto on sealing ring pressing plate 6, closes at this time in valve body 4
Circular passage import, the water inlet of upstream cannot reach in valve body 4, then can be to the exit seal circle of piston valve and its
Its part is repaired or replaced.
Claims (1)
1. a kind of water-driven overhauls sealing piston formula the needle valve, including：Import valve body（1）, movable valve base（2）, driving connect
Pipe（3）, valve body（4）, kuppe（5）, sealing ring pressing plate（6）, sealing ring（7）, leading truck（8）, guide pad（9）, mouse cage（10）,
Fixed valve base（11）, outlet valve body（12）, rack fixed frame（13）, piston（14）, drive shaft（15）, driving gear（16）And drive
Carry-over bar（17）, it is characterised in that：The needle valve is in valve body（4）One end be equipped with import valve body（1）, import valve body
（1）It is interior that movable valve base is housed（2）, valve body（4）Upper end is taken over equipped with driving（3）, valve body（4）Inner cavity be equipped with kuppe（5）, lead
Stream cover（5）And valve body（4）Between be respectively provided with sealing ring pressing plate（6）, sealing ring（7）, piston packing（18）And piston seal
Enclose pressing plate（19）, kuppe（5）The interior space that is constituted is built-in rack fixed frame（13）And piston（14）, rack fixed frame
（13）It is upper that drive rack is housed（17）, drive rack（17）One end be equipped with leading truck（8）, leading truck（8）It is upper that guide pad is housed
（9）, guide pad（9）With drive rack（17）It is in contact, drive rack（17）With mounted in drive shaft（15）On driving gear
（16）It is meshed, valve body（4）The other end be equipped with mouse cage（10）, mouse cage（10）The other end is equipped with fixed valve base（11）, fixed valve
Seat（11）With outlet valve body（12）It is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820376212.3U CN208074173U (en) | 2018-03-20 | 2018-03-20 | Water-driven overhauls sealing piston formula the needle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820376212.3U CN208074173U (en) | 2018-03-20 | 2018-03-20 | Water-driven overhauls sealing piston formula the needle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208074173U true CN208074173U (en) | 2018-11-09 |
Family
ID=64047232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820376212.3U Active CN208074173U (en) | 2018-03-20 | 2018-03-20 | Water-driven overhauls sealing piston formula the needle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208074173U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114542743A (en) * | 2022-01-27 | 2022-05-27 | 博纳斯威阀门股份有限公司 | Axial flow type bidirectional two-stage regulating valve |
-
2018
- 2018-03-20 CN CN201820376212.3U patent/CN208074173U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114542743A (en) * | 2022-01-27 | 2022-05-27 | 博纳斯威阀门股份有限公司 | Axial flow type bidirectional two-stage regulating valve |
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