CN102878301A - Overflow valve with detachable valve sleeve - Google Patents
Overflow valve with detachable valve sleeve Download PDFInfo
- Publication number
- CN102878301A CN102878301A CN2011101949462A CN201110194946A CN102878301A CN 102878301 A CN102878301 A CN 102878301A CN 2011101949462 A CN2011101949462 A CN 2011101949462A CN 201110194946 A CN201110194946 A CN 201110194946A CN 102878301 A CN102878301 A CN 102878301A
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- Prior art keywords
- valve
- sleeve
- push rod
- spool
- detachable
- 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.)
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- 238000007789 sealing Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000013016 damping Methods 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 abstract description 9
- 239000003921 oil Substances 0.000 description 15
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The present invention provides an overflow valve with a detachable valve sleeve. The overflow valve comprises a valve sleeve with a valve core inside, wherein one end of the valve sleeve is connected with an outer valve sleeve, one end of the outer valve sleeve is connected with a regulating sleeve, a screw sleeve is connected to one end inside the outer valve sleeve, a regulating lever is arranged in the regulating sleeve and connected with a mandril, the mandril is arranged in the outer valve sleeve, a spring is mounted on the mandril in a sleeving manner, one end of the mandril is connected with the valve core, and the other end of the spring is mounted on the valve core in a sleeving manner. The regulating sleeve is rotated to regulate the pressure, and an elastic cylindrical pin drives the regulating lever to rotate. The regulating lever and the screw sleeve form a connecting pair, therefore, the mandril is pushed to compress or loosen the spring to realize the pressure regulation function.
Description
Technical field
The present invention relates to the hydraulic system technical field, the concrete overflow valve with detachable valve housing that uses in a kind of hydraulic system that relates to.
Background technique
The relief valve that must use in the hydraulic system is used for setting up and controlling the crucial valve of pressure in the hydraulic system.The valve body main aperture of existing a kind of plug-in overflow valve (patent publication No. CN201420717) (seeing accompanying drawing 1) is a kind of dark small structure form, adding cutter poor rigidity in man-hour, the precision that causes processing rear aperture can't guarantee, so that pressure instability is arranged at work, sometimes have the generation of the phenomenon of uttering long and high-pitched sounds, higher to technique and processor's technical requirements in actual production.Its controlling device must adopt several different instruments in addition, needs directly to reach the place that needs often to regulate pressure at some and seems convenient not.
Summary of the invention
Technical problem to be solved by this invention is, overcomes problems of the prior art, and the overflow valve with detachable valve housing that uses in a kind of hydraulic system is provided.
Such in order to address the above problem technological scheme of the present invention:
Overflow valve with detachable valve housing, comprise a valve pocket, have a spool in the valve pocket, an end of described valve pocket connects an outer valve sleeve again, outer valve sleeve one end connects an adjustment sleeve, the inner end of outer valve sleeve connects a swivel nut, has an adjustable lever in the adjustment sleeve, and adjustable lever connects a push rod, push rod is arranged on outer valve sleeve inside, cover has spring on the push rod, and push rod one end connects spool, and the other end of spring is enclosed within on the spool.
The end of push rod has a circular groove, is provided with steel ball in the groove.
Be threaded connection between valve pocket and the outer valve sleeve, the valve pocket end has outside thread, and the outer valve sleeve end has internal thread, and valve pocket screws in the outer valve sleeve.
Described spool is the taper valve core with the damping spool, and the spool middle part has a taper oil sealing surface.
Rotate the transfer cover when regulating pressure, drive the adjustable lever rotation by elastic cylindrical pin, because adjustable lever is threaded connection pair with swivel nut, thereby the movement that promotes push rod compresses or trip spring, with the realization voltage regulation function.
It is simple and convenient that beneficial effect, overflow valve with detachable valve housing of the present invention can make the processing of valve body main aperture become, thereby guarantee the required precision of valve, and the working stability of valve is greatly improved, and it is simple and convenient that the simultaneously adjusting of valve also becomes.
Description of drawings
Describe the present invention in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is plug-in overflow valve structural representation described in the prior art.
Fig. 2 is overflow valve with detachable valve housing structural representation of the present invention.
Fig. 3 is valve pocket end-face structure schematic representation of the present invention.
Fig. 4 is valve pocket inner section structural representation of the present invention.
Fig. 5 is poppet valve core structural representation of the present invention.
1---valve pocket; 2---spool; 3---seal ring; 4---ring washer; 5---spring seat; 6---spring; 7---seal ring; 8---outer valve sleeve; 9---push rod; 10---Steel Cable Baffle Ring; 11---seal ring; 12---seal ring; 13---seal ring; 14---swivel nut; 15---steel ball; 16---adjustable lever; 17---pin; 18---adjustment sleeve; 00---the oil sealing mouth; 01---inclined hole (oil inlet hole); 02---radial hole (spill port); 03---the oil sealing mouth; 04---main aperture; 05---oil sealing surface.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
Referring to Fig. 2-Fig. 5, valve pocket 1 is threaded with outer valve sleeve 8 usefulness, and its effect is that the main valve deep hole is difficult to be processed in order to solve, and precision is difficult for guaranteeing and designs.
Dress poppet valve core 2 in the main aperture in the valve pocket 1, poppet valve core is with guide head, its purpose is for improving the pressure regulation precision, guide head and poppet valve core are integrated, O-ring seals 3 and back-up ring 4 are housed on valve pocket 1 cylindrical, this seal ring is to leak to oil back chamber for the pressure oil of preventing locking system internal pressure chamber, bore 6 axial inclined holes (oil inlet hole) 01 and 6 radial hole (spill port) 02 on the valve pocket, the right-hand member of valve pocket is processed with screw thread, be connected with outer valve sleeve, the effect of oil inlet hole is that system oil is introduced in the main valve hole.
The right-hand member of outer valve sleeve 8 is processed with internal and external threads, and internal thread is used for connecting valve pocket 1, and outside thread is used for the occasions such as valve piece of connected system, externally threaded right-hand member is equipped with seal ring, prevent the leakage of oil return, the intermediate portion of outer valve sleeve is processed into hexagon, is convenient to installing and using of valve, the left end of outer valve sleeve is processed with O shape ring recess, place seal ring 12, simultaneously, the left end of outer valve sleeve also has internal thread to connect swivel nut 14,40 ° cone mouth is processed in the left end aperture, in order to place seal ring 13.
The right-hand member machining screw of swivel nut 14, be connected 8 combinations with external thread sleeve, inside is processed into step-like, interior placement pressure adjusting spring 6 and push rod 9, at swivel nut 14 seal ring 13 is housed, prevents from the leakage of outside thread joint, the left end of swivel nut 14 also has one section internal thread, in order to connecting pressure regulation bar 16, and play the pressure regulation effect.
Adjustment sleeve is processed with the Steel Cable Baffle Ring groove at the right part endoporus, places Steel Cable Baffle Ring 10, and endoporus is processed into step-like, is used for limiting maximum pressure; The adjustment sleeve external process has netted line, and the easy-to-operat personnel directly save pressure with hand adjustment, is a little hexagon on the top of adjustment sleeve, is used under the fortuitous event, and tool using is regulated easily.
After overflow valve with detachable valve housing is packed system into, fluid enters in the main aperture of valve pocket 1 by axially oblique aperture 01, rotate adjustment sleeve 18 this moment, effect by pin 17, so that pressure regulation bar 16 rotates simultaneously, because pressure regulation bar 16 is relations of screw pair with swivel nut 14, so that the pressure regulation bar moves forward and backward the transmission by steel ball 15, the promotion push rod moves forward and backward, pressure adjusting spring 6 is compressed or loosen, thereby the oil sealing surface 05 of poppet valve core 2 and the oil sealing mouth 03 of the main aperture of valve pocket 1 are fitted, thereby set up different pressure.Leak oil and flows out oil sump tank from hole 04, the effect of Steel Cable Baffle Ring is to prevent that excessive rotary regulating sleeve from causing the pressure regulation bar to skid off, simultaneously the Depth determination of the step hole of rotary sleeve maximum pressure.
More than show and described basic principle of the present invention, major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (4)
1. overflow valve with detachable valve housing comprises a valve pocket, has a spool in the valve pocket, it is characterized in that, one end of described valve pocket connects an outer valve sleeve again, and outer valve sleeve one end connects an adjustment sleeve, and the inner end of outer valve sleeve connects a swivel nut, has an adjustable lever in the adjustment sleeve, adjustable lever connects a push rod, and push rod is arranged on outer valve sleeve inside, and cover has spring on the push rod, push rod one end connects spool, and the other end of spring is enclosed within on the spool.
2. overflow valve with detachable valve housing according to claim 1 is characterized in that, the end of push rod has a circular groove, is provided with steel ball in the groove.
3. overflow valve with detachable valve housing according to claim 1 is characterized in that, is threaded connection between valve pocket and the outer valve sleeve, and the valve pocket end has outside thread, and the outer valve sleeve end has internal thread, and valve pocket screws in the outer valve sleeve.
4. overflow valve with detachable valve housing according to claim 1 is characterized in that, described spool is the taper valve core with the damping spool, and the spool middle part has a taper oil sealing surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101949462A CN102878301A (en) | 2011-07-12 | 2011-07-12 | Overflow valve with detachable valve sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101949462A CN102878301A (en) | 2011-07-12 | 2011-07-12 | Overflow valve with detachable valve sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102878301A true CN102878301A (en) | 2013-01-16 |
Family
ID=47479748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101949462A Pending CN102878301A (en) | 2011-07-12 | 2011-07-12 | Overflow valve with detachable valve sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102878301A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017392A (en) * | 2019-05-10 | 2019-07-16 | 苏州宝氏自动化科技有限公司 | A kind of overflow valve suitable for injection molding machine |
| CN113606214A (en) * | 2021-08-31 | 2021-11-05 | 索特传动设备有限公司 | Relief valve and construction machinery with it |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20220348U1 (en) * | 2002-06-14 | 2003-06-12 | Gerhard Götze KG, 71636 Ludwigsburg | Overflow or control valve has adjusting device in upper section of valve with handwheel for manual adjustment of spring force acting on valve cone, and handwheel has adjusting spindle with spring housing |
| CN201144906Y (en) * | 2007-12-28 | 2008-11-05 | 上海立新液压有限公司 | Cartridge inserted valve control cover board |
| CN101435443A (en) * | 2007-11-16 | 2009-05-20 | 上海立新液压有限公司 | Overlapped type precursor overflow valve |
| CN201420717Y (en) * | 2009-05-12 | 2010-03-10 | 上海华岛液压设备制造有限公司 | Overflow valve |
| CN201526552U (en) * | 2009-09-30 | 2010-07-14 | 浙江大学宁波理工学院 | Plug-in pilot relief valve |
| JP2010266000A (en) * | 2009-05-15 | 2010-11-25 | Toyota Motor Corp | Overflow prevention valve |
| CN201705749U (en) * | 2010-07-02 | 2011-01-12 | 上海立新液压有限公司 | Hydraulic control flow valve provided with overflow valve plug-in unit and pressure compensation plug-in unit |
| CN202140363U (en) * | 2011-07-12 | 2012-02-08 | 上海立新液压有限公司 | Overflow valve with detachable valve housing |
-
2011
- 2011-07-12 CN CN2011101949462A patent/CN102878301A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20220348U1 (en) * | 2002-06-14 | 2003-06-12 | Gerhard Götze KG, 71636 Ludwigsburg | Overflow or control valve has adjusting device in upper section of valve with handwheel for manual adjustment of spring force acting on valve cone, and handwheel has adjusting spindle with spring housing |
| CN101435443A (en) * | 2007-11-16 | 2009-05-20 | 上海立新液压有限公司 | Overlapped type precursor overflow valve |
| CN201144906Y (en) * | 2007-12-28 | 2008-11-05 | 上海立新液压有限公司 | Cartridge inserted valve control cover board |
| CN201420717Y (en) * | 2009-05-12 | 2010-03-10 | 上海华岛液压设备制造有限公司 | Overflow valve |
| JP2010266000A (en) * | 2009-05-15 | 2010-11-25 | Toyota Motor Corp | Overflow prevention valve |
| CN201526552U (en) * | 2009-09-30 | 2010-07-14 | 浙江大学宁波理工学院 | Plug-in pilot relief valve |
| CN201705749U (en) * | 2010-07-02 | 2011-01-12 | 上海立新液压有限公司 | Hydraulic control flow valve provided with overflow valve plug-in unit and pressure compensation plug-in unit |
| CN202140363U (en) * | 2011-07-12 | 2012-02-08 | 上海立新液压有限公司 | Overflow valve with detachable valve housing |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017392A (en) * | 2019-05-10 | 2019-07-16 | 苏州宝氏自动化科技有限公司 | A kind of overflow valve suitable for injection molding machine |
| CN113606214A (en) * | 2021-08-31 | 2021-11-05 | 索特传动设备有限公司 | Relief valve and construction machinery with it |
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| Date | Code | Title | Description |
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| 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 |
Application publication date: 20130116 |