CN203272910U - High-pressure water safety valve - Google Patents
High-pressure water safety valve Download PDFInfo
- Publication number
- CN203272910U CN203272910U CN 201220754688 CN201220754688U CN203272910U CN 203272910 U CN203272910 U CN 203272910U CN 201220754688 CN201220754688 CN 201220754688 CN 201220754688 U CN201220754688 U CN 201220754688U CN 203272910 U CN203272910 U CN 203272910U
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- valve
- spool
- pressure water
- pressure
- high pressure
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Abstract
The utility model relates to a high-pressure water safety valve, and in particular to a high-pressure water safety device which can ensure that a high-pressure water jet device discharges water and releases the pressure when the systematic pressure of a system overflow valve is accidentally increased. The high-pressure water safety valve comprises an adjusting stud, a disc spring column, a valve rod, a valve core, a valve body, a sealing ring, a valve seat, and the like. The high-pressure water safety valve is provided with a water inlet and four water outlets. The valve core is matched with the plane of the valve seat. By rotating the adjusting stud, the elastic force of the disc spring column can be adjusted by adjusting the compression deformation of the disc spring column, so that the popping pressure of the valve core is set. When the acting force of the high-pressure water on the surface of the valve core reaches the lower limit of the popping pressure of the valve core, the pre-pressing force, acting on the valve core, of the disc spring column is overcome, so that the valve core is popped up, the water is discharged, and the pressure is reduced. The high-pressure water safety valve is simple in structure, small in size, sensitive to pop up and convenient to operate.
Description
One, technical field
The utility model relates to the safety alarm device of high-pressure water shot flow device, especially can guarantee when the rising of accidental system pressure appears in system's relief valve the high pressure water safety valve of sluicing step-down.
Two, background technique
High pressure water jet is widely used in cleaning, rust cleaning, the cutting of each industrial department, and is broken grade for operation.The high pressure water jet major product has: CNC high-pressure water cutting machine, jetting machine, high-power complete sets of equipment, microminiature washing machine etc.Safety valve is the last line of defense of high-pressure water shot streaming system, is to arrange in order to prevent accident.Safety valve is that the high-pressure water shot flow device is requisite, and along with the development of high-pressure water shot flow device, safety valve is also in continuous development.
Three, model utility content
The utility model provides a kind of high pressure water safety valve, can guarantee the high-pressure water shot flow device when the rising of accidental system pressure appears in system's relief valve, the high pressure water safety installation of sluicing step-down.
the technical solution adopted in the utility model: a kind of high pressure water safety valve, can guarantee that the high-pressure water shot flow device is when the rising of accidental system pressure appears in system's relief valve, sluice, the high pressure water safety installation of step-down, by regulating double-screw bolt, stack of Belloville springs, valve rod, spool, valve body, seal ring, the compositions such as valve seat, it is characterized in that: valve rod, spool and valve seat are arranged in body cavity, spool is positioned at above valve seat, valve rod is positioned at above spool, regulate double-screw bolt by rotation, regulate the compress variation of stack of Belloville springs and regulate stack of Belloville springs elastic force, thereby set the release pressure of spool.Valve seat is positioned at valve body lower end, and valve seat and valve body screw thread coordinate, and the outer cylinder step surface of valve seat and the lower end surface of valve body coordinate, and define valve seat in the position of valve body lower end.In the outer cylinder surface o-ring groove of valve seat, seal ring is housed, prevents that high pressure water from leaking into the valve body outside.Spool is arranged in body cavity, and spool and valve seat planes coordinate, and the even take-off of this structure stress is sensitive.The lower end surface of spool and valve seat upper-end surface cooperation define the axial position that spool is arranged in body cavity.The lower end surface of spool faces the valve seat endoporus.The spool plane is being subject under the effect of high pressure water active force.The plane contacts with high pressure water, and lifting surface area is large stressed even.When the active force that makes progress when the suffered high pressure water of spool surpassed the elastic force of stack of Belloville springs, spool will take-off.Flow out the cylinder space that high pressure water is opened from spool and valve seat, cylinder space earial drainage area is large, and earial drainage is fast, is swift in motion.Valve rod is arranged in body cavity, and valve rod and spool sphere coordinate, and this respective outer side edges defines the radial position that spool is arranged in body cavity.The outer bulb diameter of valve rod is less than the interior bulb diameter of spool, and when the elastic force of stack of Belloville springs acted on valve rod, valve rod is stressed to be transmitted on spool, and the sphere friction fit power of different-diameter is little, and spool can and then not rotate when valve rod rotates.The sphere of different-diameter coordinates, and no matter whether valve rod is stressed average, and active force is transmitted to spool from sphere, and the stressed of spool is all uniformly, makes spool and valve seat seal stronger.Stack of Belloville springs is arranged in the inner chamber of valve body, and the inner periphery of stack of Belloville springs and valve rod outer cylinder surface coordinate.The outer cylinder surface of stack of Belloville springs and the inner periphery of valve body coordinate, and define the position of stack of Belloville springs in body cavity.The cylindrical section length that valve rod and stack of Belloville springs coordinate is less than the length of stack of Belloville springs.When stack of Belloville springs is compressed, guarantees to regulate double-screw bolt and can not produce interference with valve rod.Valve body has 4 water outlets to sluice, and is easy to observe.If the spool take-off of a safety valve valve body water outlet can flow out water.This explanation whole system has broken down, and needs check system.Regulate double-screw bolt and be arranged in body cavity, regulate the outside thread of double-screw bolt and the screw-internal thread fit of valve body.Regulate double-screw bolt by rotation, regulate the compress variation of stack of Belloville springs and regulate stack of Belloville springs elastic force, thereby set the release pressure of spool.The pressure that acts on spool face when high pressure water reaches spool release pressure lower limit, overcomes stack of Belloville springs and acts on precompression on spool, makes spool take-off sluicing step-down.
The beneficial effects of the utility model are: safety valve is received in the whole system of high-pressure water shot flow device.When system's relief valve or other factors accidental system pressure occurred and raise, 4 water outlets on valve body of safety valve will sluice, and show that system has broken down, and are easy to cause operator's attention.Safety valve spool take-off simultaneously sluices, and has guaranteed the safety of whole system.This high pressure water safety valve, simple in structure, volume is little, and take-off is sensitive, and is easy to operate.
Four, description of drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated.Obvious described embodiment is only that a part of the present utility model is executed example, rather than all executes example.Based on embodiment of the present utility model, those of ordinary skills belong to protection domain of the present utility model not making the every other embodiment who obtains under the creative work prerequisite.
Fig. 1 is axial section structural representation of the present utility model.
In Fig. 1,1, regulate double-screw bolt, 2, stack of Belloville springs, 3, valve rod, 4, spool, 5, valve body, 6, seal ring, 7, valve seat, 8, water intake, 9, water outlet.
Fig. 2 is monnolithic case schematic diagram of the present utility model.
Fig. 3 is whole decomposing schematic representation of the present utility model.
Five, embodiment
High pressure water safety valve in Fig. 1 forms by regulating double-screw bolt 1, stack of Belloville springs 2, valve rod 3, spool 4, valve body 5, seal ring 6, valve seat 7, water intake 8, water outlet 9 etc.Seal ring 6 is encased in the outer cylinder surface o-ring groove of valve seat 7 during assembling.Valve seat 7 after installing and valve body 5 screw threads screw, and tighten.Spool 4 is flatted down be encased in valve body 5 inner chambers from valve body 5 upper ends, the sphere of valve rod 3 down, be encased in valve body 5 inner chambers from valve body 5 upper ends, the inner ball surface of the outer spherical surface of valve rod 3 and spool 4 coordinates, because the intracavity diameter of the maximum outside diameter of valve rod 3 and valve body 5 is close.So spool 4 is driven placed in the middle under valve rod 3 sphere effects.Stack of Belloville springs 2 is encased in valve body 5 inner chambers, and the interior cylinder borehole jack of stack of Belloville springs 2 is on valve rod 3.To regulate double-screw bolt 1 and screw valve body 5 upper ends.Regulate double-screw bolt 1 by rotation, regulate the compress variation of stack of Belloville springs 2 and regulate stack of Belloville springs 2 elastic force, thereby set the release pressure of spool 4.The pressure that acts on spool 4 surfaces when high pressure water reaches spool 4 release pressure lower limits, overcomes stack of Belloville springs 2 and acts on precompression on spool 4, makes spool 4 take-off sluicing step-downs.This high pressure water safety valve, simple in structure, volume is little, and take-off is sensitive, and is easy to operate.
Working principle of the present utility model is: high pressure water enters the high pressure water safety valve from high pressure water water intake 8, and earial drainage water flows out from 4 water outlets 9 on valve body.High pressure water enters into the endoporus of valve seat 7, the axial force that acts on 4 times Transverse planes of spool that produces from the water intake 8 of safety valve under the high pressure water pressure-acting.The axial force of stack of Belloville springs 2 compressed generations acts on spool 4.When high pressure water acts on axial force on spool 4 and acts on active force on spool 4 greater than stack of Belloville springs 2, spool 4 take-offs, high pressure water flows in valve body 5 inner chambers by the space of the spool 4 after opening and valve seat 7,4 water outlets 9 from valve body 5 flow out valve body 5, reach the purpose of sluicing, step-down.The pre-pressing force of regulation safety valve, regulate according to the working pressure of system, to regulate double-screw bolt 1 and upwards be adjusted to valve body 5 water outlet 9 water outlets, regulate slowly again double-screw bolt 1 to bottom offset, until valve body 5 water outlets 9 just stop regulating without water outlet, come the take-off situation of test safety valve by regulating high pressure water system pressure, whether the check safety valve works again.All adjust and completely seal the valve body upper end with paraffin afterwards, prevent that the safety valve accident is conditioned, and plays the protective action of system.
Claims (4)
1. high pressure water safety valve, can guarantee that the high-pressure water shot flow device is when the rising of accidental system pressure appears in system's relief valve, the high pressure water safety installation of sluicing, step-down, form by regulating double-screw bolt, stack of Belloville springs, valve rod, spool, valve body, seal ring, valve seat etc., it is characterized in that: valve rod, spool and valve seat are arranged in body cavity, spool is positioned at above valve seat, valve rod is positioned at above spool, regulate double-screw bolt by rotation, regulate the compress variation of stack of Belloville springs and regulate stack of Belloville springs elastic force, thereby set the release pressure of spool.
2. high pressure water safety valve according to claim 1, is characterized in that: spool and valve seat planes cooperation, the even take-off sensitivity of this structure stress.
3. high pressure water safety valve according to claim 1 is characterized in that: valve rod and spool sphere coordinate, and this respective outer side edges defines the radial position that spool is arranged in body cavity.
4. high pressure water safety valve according to claim 1 is characterized in that: valve body has 4 water outlets to sluice, and is easy to observe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220754688 CN203272910U (en) | 2012-12-30 | 2012-12-30 | High-pressure water safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220754688 CN203272910U (en) | 2012-12-30 | 2012-12-30 | High-pressure water safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203272910U true CN203272910U (en) | 2013-11-06 |
Family
ID=49503322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220754688 Expired - Fee Related CN203272910U (en) | 2012-12-30 | 2012-12-30 | High-pressure water safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203272910U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223075A (en) * | 2017-12-29 | 2018-06-29 | 凯龙高科技股份有限公司 | A kind of feeding pressure stabilizing device for metering pump |
| CN109140002A (en) * | 2018-10-23 | 2019-01-04 | 北京动力机械研究所 | A kind of pressure stabilizing plate overflow valve |
-
2012
- 2012-12-30 CN CN 201220754688 patent/CN203272910U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223075A (en) * | 2017-12-29 | 2018-06-29 | 凯龙高科技股份有限公司 | A kind of feeding pressure stabilizing device for metering pump |
| CN109140002A (en) * | 2018-10-23 | 2019-01-04 | 北京动力机械研究所 | A kind of pressure stabilizing plate overflow valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20161230 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |