CN201232785Y - Ultra-high pressure overflow valve - Google Patents
Ultra-high pressure overflow valve Download PDFInfo
- Publication number
- CN201232785Y CN201232785Y CNU200820086208XU CN200820086208U CN201232785Y CN 201232785 Y CN201232785 Y CN 201232785Y CN U200820086208X U CNU200820086208X U CN U200820086208XU CN 200820086208 U CN200820086208 U CN 200820086208U CN 201232785 Y CN201232785 Y CN 201232785Y
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- valve
- pressure
- spring
- screw
- steel ball
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Abstract
The utility model discloses an ultra-high-pressure overflow valve comprising a valve body (7) with an oil outlet joint (16), a compression screw (15) with an oil inlet, a valve seat (6) with an oil hole matched with a cone valve core (5), and a pressure-adjustable screw cap (2), wherein, the compression screw (15) is screwed on the valve body (7), and the oil inlet of the compression screw is communicated with the oil hole of the valve seat (6); the pressure-adjustable screw cap (2) is screwed on the valve body (7); the cone; valve core (5) is connected with a spring seat (3) via the pressure-adjustable spring (4), and the spring seat (3) is tightly stuck with the pressure-adjustable screw cap (2); the valve body (7) is provided with a safety valve, and the oil inlet of which is communicated with the oil inlet of the compression screw (15). By adopting the structure, for the safety valve added on the oil inlet, so the system can bear ultra-high-pressure system pressure and ensure stable pressure of the whole system oil passage.
Description
Technical field
The utility model relates to a kind of valve, specifically is a kind of ultrahigh pressure relief valve.
Background technique
Relief valve is a very important Hydraulic power tools in the industrial field, can be widely used in building machinery, plastics machinery, mining machinery, engineering machinery, industrial fields such as boats and ships, aviation, automobile, bridge, highway, metallurgy.Existing ultrahigh pressure relief valve, comprise the valve seat that has filler opening, the valve body that has oil outlet, poppet valve core, look nut, poppet valve core is connected on the spring seat through spring, look nut screws on valve body, and be pressed on the spring seat, by the pressure of spring seat being adjusted the pressure of spring to poppet valve core, hydraulic oil then can flow back to fuel tank through pipe joint, return tube from the oil outlet on the valve body when system pressure was too high, thereby the pressure in the hydraulic system is regulated control.The shortcoming below but this ultrahigh pressure relief valve exists: because the narrow limitation of spring force, the system pressure of relief valve can not be very high, its maximum pressure that can bear only has 31.5MPa, if overpressure in the system can influence the stability of whole system oil circuit.
The model utility content
Technical problem to be solved in the utility model is, even provide a kind of system pressure the very high ultrahigh pressure relief valve that also can guarantee hydraulic system oil circuit stability.
For solving the problems of the technologies described above, a kind of ultrahigh pressure relief valve that the utility model provides, comprise the valve body that has flowline connection to subsea, the housing screw that has filler opening, valve seat with the oilhole that cooperates with poppet valve core, the pressure regulation nut, described housing screw screws on valve body, and its filler opening communicates with the oilhole of valve seat, described pressure regulation nut screwing is on valve body, described poppet valve core is connected with spring seat through pressure adjusting spring, described spring seat and pressure regulation nut are close to, also be provided with safety valve on the described valve body, the hydraulic fluid port of described safety valve communicates with time hydraulic fluid port on the housing screw.
After adopting above structure,, make system can bear the system pressure of ultrahigh pressure, and can guarantee the pressure stability of whole system oil circuit owing to increased a safety valve at the filler opening of valve.
As improvement, described safety valve comprises valve casing, steel ball, steel ball bracket, spring, the screw that has oil outlet, wherein, described steel ball is positioned at the place, aperture of valve casing oil inlet hole, and be close to the steel ball bracket, described steel ball bracket is connected with screw through spring, and described screw and valve casing screw.After adopting this structure, the structure of safety valve is simpler, and the structure of whole relief valve is also more oversimplified.
Description of drawings
Shown in the drawings is the sectional structure schematic representation of the utility model ultrahigh pressure relief valve.
Wherein, 1, return tube; 2, pressure regulation nut; 3, spring seat; 4, pressure adjusting spring; 5, poppet valve core; 6, valve seat; 7, valve body; 8, valve casing; 9, steel ball; 10, steel ball bracket; 11, screw; 12, spring; 13, oil outlet; 14, filler opening; 15, housing screw; 16, flowline connection to subsea.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is done explanation in further detail.
By the sectional structure schematic representation of the utility model ultrahigh pressure relief valve shown in Figure 1 as can be known, the utility model ultrahigh pressure relief valve, comprise the valve body 7 that has flowline connection to subsea 16, the housing screw 15 that has filler opening, valve seat 6 with the oilhole that cooperates with poppet valve core 5, pressure regulation nut 2, described housing screw 15 screws on valve body 7, and its filler opening communicates with the oilhole of valve seat 6, described pressure regulation nut 2 screws on valve body 7, described poppet valve core 5 is connected with spring seat 3 through pressure adjusting spring 4, described spring seat 3 is close to pressure regulation nut 2, also be provided with safety valve on the described valve body 7, the hydraulic fluid port of described safety valve communicates with filler opening on the housing screw 15.Described safety valve comprises valve casing 8, steel ball 9, steel ball bracket 10, spring 12, the screw 11 that has oil outlet 13, wherein, described steel ball 9 is positioned at the place, aperture of valve casing 8 oil inlet holes 14, and be close to steel ball bracket 10, described steel ball bracket 10 is connected with screw 11 through spring 12, and described screw 11 screws with valve casing 8.
In this ultrahigh pressure relief valve, be with return tube 1 on the described oil returning pipe joint 16, return tube 1 is connected with system oil-way again.
When using the ultrahigh pressure relief valve, the highest safety pressure of system is set by adjusting screw 11 in advance, when system pressure surpasses default the highest safety pressure, steel ball 9 is the effect lower compression steel ball bracket 10 and spring 12 past the moving to right of hydraulic coupling, and hydraulic oil flows back to fuel tank by the return opening on the valve casing 8 13.When system pressure does not reach default the highest safety pressure, steel ball 9 under the effect of the spring force of spring 12 with valve casing 8 on filler opening 14 closely contact, thereby not oil extraction.
According to general knowledge, screw 11 turns clockwise, and increases the pretightening force of spring 12, and the highest security set pressure of system just increases; Screw 11 is rotated counterclockwise, and the pretightening force of spring 12 just reduces, thereby the highest security set pressure of system also reduces.As a same reason, pressure regulation nut 2 is used for controlling the degree of tightness of adjusting spring 4 and comes the pressure of adjust system.Pressure regulation nut 2 turns clockwise, and system pressure just increases; Pressure regulation nut 2 is rotated counterclockwise, and system pressure just reduces.
During work, pressure oil acts on the bottom of poppet valve core 5 through housing screw 15, formed one with adjust the hydraulic coupling that spring 4 contends with, when this hydraulic coupling during less than the spring force of adjustment spring 4, poppet valve core 5 is closed, this valve is inoperative.
When system works pressure raises gradually, when surpass adjusting the pressure that spring 4 adjusted, poppet valve core 5 overcomes the spring force of adjusting spring 4 and opens under the effect of hydraulic coupling, unnecessary fluid is through valve body 7, oil returning pipe joint 16, return tube 1 excessive oil sump tank, and the pressure stability that makes filler opening is on the pressure regulation value.
When by pressure regulation nut 2 with pressure transfer too high or ultra when crossing safety valve pressure, the filler opening 14 on the valve casing 8 is left in the effect that safety valve steel ball 9 overcomes spring 12 spring forces, the unnecessary fluid just oil outlet 13 from the valve casing 8 flows back to fuel tank, thereby the pressure stability that makes filler opening is on the setting pressure of safety valve.Therefore the constant voltage that guarantees oil circuit is stable.
Claims (2)
1, a kind of ultrahigh pressure relief valve, comprise the valve body (7) that has flowline connection to subsea (16), the housing screw (15) that has filler opening, valve seat (6) with the oilhole that cooperates with poppet valve core (5), pressure regulation nut (2), described housing screw (15) screws on valve body (7), and its filler opening communicates with the oilhole of valve seat (6), described pressure regulation nut (2) screws on valve body (7), described poppet valve core (5) is connected with spring seat (3) through pressure adjusting spring (4), described spring seat (3) is close to pressure regulation nut (2), it is characterized in that: described valve body also is provided with safety valve on (7), and the filler opening of described safety valve communicates with filler opening on the housing screw (15).
2, ultrahigh pressure relief valve according to claim 1, it is characterized in that: described safety valve comprises valve casing (8), steel ball (9), steel ball bracket (10), spring (12), the screw (11) that has oil outlet (13), wherein, described steel ball (9) is positioned at the place, aperture of valve casing (8) oil inlet hole (14), and be close to steel ball bracket (10), described steel ball bracket (10) is connected with screw (11) through spring (12), and described screw (11) screws with valve casing (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820086208XU CN201232785Y (en) | 2008-05-08 | 2008-05-08 | Ultra-high pressure overflow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820086208XU CN201232785Y (en) | 2008-05-08 | 2008-05-08 | Ultra-high pressure overflow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201232785Y true CN201232785Y (en) | 2009-05-06 |
Family
ID=40619165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820086208XU Expired - Fee Related CN201232785Y (en) | 2008-05-08 | 2008-05-08 | Ultra-high pressure overflow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201232785Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718354B (en) * | 2009-12-04 | 2011-12-28 | 中山市祥丰瓦斯器材制品有限公司 | Automatic temperature-control gas safety valve |
| CN102537444A (en) * | 2011-05-11 | 2012-07-04 | 上海大学 | Miniature front pressure-reducing valve type ultrahigh pressure overflow valve |
| CN102937203A (en) * | 2012-11-13 | 2013-02-20 | 上海交大南洋机电科技有限公司 | Pressure stabilizer applied to hydraulic coupler oil-way system |
| CN103104570A (en) * | 2013-01-30 | 2013-05-15 | 湖州生力液压有限公司 | Overflow structure for hydraulic integral valve of harvester and hydraulic integral valve |
| CN103615422A (en) * | 2013-12-05 | 2014-03-05 | 江苏二马液压元件有限公司 | Pressure reducing overflow valve |
| CN106286918A (en) * | 2016-08-30 | 2017-01-04 | 重庆红江机械有限责任公司 | Ultra-high-pressure overflow valve |
| CN107228215A (en) * | 2017-07-28 | 2017-10-03 | 北京航天发射技术研究所 | A kind of soft-sealing safety valve |
| CN108869430A (en) * | 2018-09-18 | 2018-11-23 | 唐万刚 | A kind of small-sized distributing valve |
| CN115046038A (en) * | 2022-05-05 | 2022-09-13 | 浙江超力防火设备有限公司 | Overflow valve for high-temperature gas transmission |
-
2008
- 2008-05-08 CN CNU200820086208XU patent/CN201232785Y/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718354B (en) * | 2009-12-04 | 2011-12-28 | 中山市祥丰瓦斯器材制品有限公司 | Automatic temperature-control gas safety valve |
| CN102537444B (en) * | 2011-05-11 | 2013-07-17 | 上海大学 | Miniature front pressure-reducing valve type ultrahigh pressure overflow valve |
| CN102537444A (en) * | 2011-05-11 | 2012-07-04 | 上海大学 | Miniature front pressure-reducing valve type ultrahigh pressure overflow valve |
| CN102937203A (en) * | 2012-11-13 | 2013-02-20 | 上海交大南洋机电科技有限公司 | Pressure stabilizer applied to hydraulic coupler oil-way system |
| CN103104570B (en) * | 2013-01-30 | 2016-06-08 | 湖州生力液压有限公司 | For overflow structure and the hydraulic integrated valve of reaper hydraulic integrated valve |
| CN103104570A (en) * | 2013-01-30 | 2013-05-15 | 湖州生力液压有限公司 | Overflow structure for hydraulic integral valve of harvester and hydraulic integral valve |
| CN103615422A (en) * | 2013-12-05 | 2014-03-05 | 江苏二马液压元件有限公司 | Pressure reducing overflow valve |
| CN103615422B (en) * | 2013-12-05 | 2016-09-21 | 江苏二马液压元件有限公司 | A kind of decompression overflow valve for sanitation cart |
| CN106286918A (en) * | 2016-08-30 | 2017-01-04 | 重庆红江机械有限责任公司 | Ultra-high-pressure overflow valve |
| CN107228215A (en) * | 2017-07-28 | 2017-10-03 | 北京航天发射技术研究所 | A kind of soft-sealing safety valve |
| CN107228215B (en) * | 2017-07-28 | 2019-08-20 | 北京航天发射技术研究所 | A kind of soft-sealing safety valve |
| CN108869430A (en) * | 2018-09-18 | 2018-11-23 | 唐万刚 | A kind of small-sized distributing valve |
| CN115046038A (en) * | 2022-05-05 | 2022-09-13 | 浙江超力防火设备有限公司 | Overflow valve for high-temperature gas transmission |
| CN115046038B (en) * | 2022-05-05 | 2023-10-31 | 上海梅陇阀门有限公司 | Overflow valve for high-temperature gas transmission |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Ningbo Saivs Machinery Co., Ltd. Assignor: Zhou Zhongwei Contract record no.: 2010330001322 Denomination of utility model: Miniature front pressure-reducing valve type ultrahigh pressure overflow valve Granted publication date: 20090506 License type: Exclusive License Record date: 20100713 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090506 Termination date: 20140508 |