CN101162064A - Adjustable safety relief valve - Google Patents
Adjustable safety relief valve Download PDFInfo
- Publication number
- CN101162064A CN101162064A CNA2007101906884A CN200710190688A CN101162064A CN 101162064 A CN101162064 A CN 101162064A CN A2007101906884 A CNA2007101906884 A CN A2007101906884A CN 200710190688 A CN200710190688 A CN 200710190688A CN 101162064 A CN101162064 A CN 101162064A
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- CN
- China
- Prior art keywords
- valve body
- steel ball
- safety relief
- spring
- slide block
- 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.)
- Pending
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Abstract
The invention discloses an adjustable safety relief valve which comprises a valve body, a steel ball, an obturating ring, a sliding block, a spring, an O-shaped obturating ring, a bolt and a nut. The left end surface of the valve body is provided with a round oil inlet, the left outer wall is provided with an oil outlet. The outer wall of the valve body is provided with external threads. The steel ball, the obturating ring, the sliding block and the spring are orderly arranged in the valve body from left to right. An inner hole on right end of the valve body and a bolt form an axial regulation mechanism, and the axial position of the bolt is locked by the nut. The obturating ring is arranged between the matching surface of the sliding block and the steel ball to prevent the oil from axial leaking. The invention can alter the elastic thrust of the spring to the steel ball by adjusting the bolt, namely to regulate the off-load pressure value. The invention is convenient to be adjusted and locked due to the visibility of the adjustable structure and is suitable for safety relief valves of all power steering gears.
Description
Technical field
The present invention relates to a kind of safety installations of controlling oil pressure, the safety installations in particularly a kind of whole hydraulic power steerig device that circulates belongs to technical field of automobile parts.
Background technique
Power steering gear is the important spare part in the Hyundai Motor steering equipment, and it realizes turning to by the hydraulic oil power-assisted, alleviates the labor intensity of driver's steering operation widely.Oil pressure under the normal condition in the power steering gear is a setting value, turns to flexibly, operates light under rated oil pressure.But, when being diverted to limit position, power steering gear, makes the instantaneous rising of oil pressure in the system as the load infinity, easily cause seal leakage even damage.Prior art is provided with pressure-limiting safety valve and discharges too high oil pressure in structure, to avoid occurring the destructiveness of high pressure oil to associated components.Be provided with safety valve in the disclosed automobile rotary valve of the Chinese patent ZL022498168 integral power steering; safety valve is connected in parallel between oil inlet pipe and the return tube shown in this patent accompanying drawing 4; when the oil pressure overrate; safety valve is opened release automatically; pressure oil reduces the pressure in the power steering gear through the return tube outflow, this safety valve plays the safety protection effect conscientiously.But this safety valve structure is fixed, can not be according to operating mode self establishment pressure unloading value, and this structure has certain narrow limitation in application process.
Summary of the invention
The present invention is primarily aimed at the deficiency of the unadjustable pressure unloading of prior art, proposes a kind of simple in structurely, easy to operate, and the user can be according to the adjustable safety relief valve of operating mode self establishment pressure unloading value.
The present invention is achieved through the following technical solutions technical goal.
Adjustable safety relief valve, it comprises valve body, steel ball, seal ring, slide block, spring, O RunddichtringO, screw and nut.Described valve body is the cylindrical housings member, and the middle part, left side is provided with the axial fuel inlet mouth, and the left end outer wall is provided with radially oil outlet, and body cavity is arranged in order steel ball, seal ring, slide block, spring from left to right.Improvements are: described valve outer wall is provided with outside thread.Described valve body right-hand member endoporus and screw are formed axial regulating mechanism, nut lock screw and valve body right-hand member cooperation position.Described slide block left side is provided with pit and cooperates with steel ball, is provided with seal ring between slide block left side and the steel ball.
In the said structure, the axial fuel inlet mouth at middle part, valve body left side is a circular port, and its diameter is less than steel ball size, and steel ball cooperates with the filler opening inner wall sealing under the effect of pressure spring.The hydraulic oil of super setting value from valve body left end outer wall radially oil outlet overflow.
The present invention compared with prior art has following good effect:
1, regulation structure is simple, easy to manufacture;
2, regulation structure exposes, and just need not dismantle and can carry out the setting of pressure unloading value, and is easy to adjust, and locking easily.
Description of drawings
Accompanying drawing is a structural profile schematic representation of the present invention.
Embodiment
The invention will be further described below in conjunction with embodiment.
Adjustable safety relief valve shown in the drawings, it comprises valve body 1, steel ball 2, seal ring 3, slide block 4, spring 5, O RunddichtringO 6, screw 7 and nut 8.Described valve body 1 is the cylindrical housings member, the middle part, left side is axially arranged with circular filler opening 9, and the left end outer wall is provided with 2～4 radially oil outlets 10, and present embodiment is the safety relief valve in the GY120 power steering gear, filler opening 9 is φ 4.8mm hole, and oil outlet 10 is provided with 2 φ 3.5mm holes.Valve body 1 inner chamber is arranged in order steel ball 2, seal ring 3, slide block 4, spring 5 from left to right, and screw 7 screws in holddown spring 5 from valve body 1 right-hand member, resiliency urged steel ball 2 and filler opening 9 inwall fitted seal under the resilient force of spring 5.Described slide block 4 left sides are provided with conic shaped and cooperate with steel ball 2, are provided with seal ring 3 between slide block 4 and the steel ball 2, leak from screw 7 to prevent fluid.Rotary screw 7 can be done to regulate with respect to the axial position of valve body 1, and directly changes the elastic thrust of 5 pairs of steel balls 2 of spring, and adjusting screw 7 is promptly regulated the pressure unloading value.Nut 8 is pieced together the screw 7 of mandrel to the location.The present invention screws in the power steering gear outer wall with valve body 1, and regulation structure is exposed at outward on the power steering gear outer wall, is convenient to regulate, lock.
Claims (5)
1. adjustable safety relief valve, it comprises valve body (1), steel ball (2), seal ring (3), slide block (4), spring (5), O RunddichtringO (6), screw (7) and nut (8); Described valve body (1) is the cylindrical housings member, and the middle part, left side is provided with axial fuel inlet mouth (9), and the left end outer wall is provided with radially oil outlet (10), and valve body (1) inner chamber is arranged in order steel ball (2), seal ring (3), slide block (4), spring (5) from left to right; It is characterized in that: described valve body (1) outer wall is provided with outside thread; Described valve body (1) right-hand member endoporus and screw (7) are formed axial regulating mechanism, nut (8) lock screw (7) and valve body (1) right-hand member cooperation position; Described slide block (4) left side is provided with pit and cooperates with steel ball (2), is provided with seal ring (3) between slide block (4) left side and the steel ball (2).
2. by the described adjustable safety relief valve of claim 1, it is characterized in that: the axial fuel inlet mouth (9) at middle part, described valve body (1) left side is a circular port, and the filler opening diameter is less than steel ball (2) diameter.
3. by the described adjustable safety relief valve of claim 1, it is characterized in that: described valve body (1) left end outer wall, radially be provided with 2～4 oil outlets (10), oil outlet (10) gross area is more than or equal to filler opening (9) area.
4. by the described adjustable safety relief valve of claim 1, it is characterized in that: described spring (5) is a pressure spring.
5. by the described adjustable safety relief valve of claim 1, it is characterized in that described slide block (4) left side pit is for conical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101906884A CN101162064A (en) | 2007-11-29 | 2007-11-29 | Adjustable safety relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101906884A CN101162064A (en) | 2007-11-29 | 2007-11-29 | Adjustable safety relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101162064A true CN101162064A (en) | 2008-04-16 |
Family
ID=39297031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101906884A Pending CN101162064A (en) | 2007-11-29 | 2007-11-29 | Adjustable safety relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101162064A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102418497A (en) * | 2011-12-15 | 2012-04-18 | 中国石油集团西部钻探工程有限公司 | Spring sheet type pressure release valve |
| CN103375615A (en) * | 2012-04-19 | 2013-10-30 | 哈米尔顿森德斯特兰德公司 | Overpressure relief valve assembly |
| CN103867430A (en) * | 2014-03-26 | 2014-06-18 | 西安西热水务环保有限公司 | Micro oil supplement device of metering pump |
| CN104533600A (en) * | 2014-11-28 | 2015-04-22 | 孙万军 | Pressure stabilizing valve of adjustable pressure type turbocharger |
| CN109654261A (en) * | 2019-01-17 | 2019-04-19 | 大连诺美液压件有限公司 | A kind of unidirectional speed regulation screw-in cartridge valve |
-
2007
- 2007-11-29 CN CNA2007101906884A patent/CN101162064A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102418497A (en) * | 2011-12-15 | 2012-04-18 | 中国石油集团西部钻探工程有限公司 | Spring sheet type pressure release valve |
| CN103375615A (en) * | 2012-04-19 | 2013-10-30 | 哈米尔顿森德斯特兰德公司 | Overpressure relief valve assembly |
| US9228668B2 (en) | 2012-04-19 | 2016-01-05 | Hamilton Sundstrand Corporation | Overpressure relief valve assembly |
| CN103375615B (en) * | 2012-04-19 | 2016-03-09 | 哈米尔顿森德斯特兰德公司 | Overpressure safety valve assembly |
| CN103867430A (en) * | 2014-03-26 | 2014-06-18 | 西安西热水务环保有限公司 | Micro oil supplement device of metering pump |
| CN104533600A (en) * | 2014-11-28 | 2015-04-22 | 孙万军 | Pressure stabilizing valve of adjustable pressure type turbocharger |
| CN109654261A (en) * | 2019-01-17 | 2019-04-19 | 大连诺美液压件有限公司 | A kind of unidirectional speed regulation screw-in cartridge valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |