CN202140363U - Overflow valve with detachable valve housing - Google Patents
Overflow valve with detachable valve housing Download PDFInfo
- Publication number
- CN202140363U CN202140363U CN201120245348U CN201120245348U CN202140363U CN 202140363 U CN202140363 U CN 202140363U CN 201120245348 U CN201120245348 U CN 201120245348U CN 201120245348 U CN201120245348 U CN 201120245348U CN 202140363 U CN202140363 U CN 202140363U
- Authority
- CN
- China
- Prior art keywords
- valve
- sleeve
- valve pocket
- spool
- push rod
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides an overflow valve with a detachable valve housing, which includes a valve housing, wherein the valve housing is internally provided with a valve core; one end of the valve housing is connected with an outer valve housing; one end of the outer valve housing is connected with an adjusting sleeve; one end in the outer valve housing is connected with a screw sleeve; the adjusting sleeve is internally provided with an adjusting rod; the adjusting rod is connected with a top rod; the top rod is arranged in the outer valve housing; a spring is sleeved on the top rod; one end of the top rod is connected with the valve core; and the other end of the spring is sleeved on the valve core. The adjusting sleeve is rotated to adjust pressure, and the adjusting rod is rotated as driven by an elastic cylindrical pin, as the adjusting rod and the screw sleeve are a threaded connecting pair, the function of pressure adjusting is achieved by pressing or loosening the spring through pushing the top rod to move.
Description
Technical field
The utility model relates to the hydraulic system technical field, the concrete removable relief valve of the valve pocket that uses in a kind of hydraulic system that relates to.
Background technique
The relief valve that must use in the hydraulic system, be used for setting up with controlled hydraulic system in the crucial valve of pressure.The valve body main aperture of existing a kind of plug-in type relief 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 the aperture, back can't guarantee; Making has pressure instability at work, has the generation of the phenomenon of uttering long and high-pitched sounds sometimes, in actual production to technology and processor's technical requirements than higher.Its controlling device must adopt several kinds of different tools in addition, needs directly to reach the place that needs often to regulate pressure at some and seems convenient inadequately.
The model utility content
The utility model technical problem to be solved is, overcomes the problem that exists in the existing technology, provides the valve pocket that uses in a kind of hydraulic system removable relief valve.
For the technological scheme that addresses the above problem the utility model is such:
The removable relief valve of valve pocket comprises a valve pocket, has a spool in the valve pocket; One end of said 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; Have an adjustable lever in the adjustment sleeve, adjustable lever connects a push rod, and push rod is arranged on outer valve sleeve inside; Be with spring on the push rod, 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.
Through being threaded, the valve pocket end has outside thread between valve pocket and the outer valve sleeve, and the outer valve sleeve end has internal thread, and valve pocket screws in the outer valve sleeve.
Said spool has a taper oil sealing surface for the taper valve core of band damping spool, spool middle part.
Rotate the transfer cover when regulating pressure, drive the adjustable lever rotation through elastic cylindrical pin, because adjustable lever be the pair that is threaded with swivel nut, thereby moving of push rod of promotion compress or trip spring, with the realization voltage regulation function.
It is simple and convenient that beneficial effect, the removable relief valve of the described valve pocket of the utility model 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 adjusting of valve simultaneously also becomes.
Description of drawings
Specify the utility model below in conjunction with accompanying drawing and embodiment;
Fig. 1 is a plug-in type structure of relief valve schematic representation described in the prior art.
Fig. 2 is the removable structure of relief valve schematic representation of the described valve pocket of the utility model.
Fig. 3 is the described valve pocket end-face structure of a utility model schematic representation.
Fig. 4 is the described valve pocket inner section of a utility model structural representation.
Fig. 5 is the described poppet valve core structural representation of the utility model.
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 utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with concrete diagram, further set forth the utility model.
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 to have guide head, its purpose is for improving the pressure regulation precision; Guide head and poppet valve core are one, and O-ring seals 3 and back-up ring 4 are housed on valve pocket 1 cylindrical, and 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, is connected with outer valve sleeve, and 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 to connect valve pocket 1, and outside thread is used for the occasions such as valve piece of connected system, and 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, places seal ring 12, simultaneously; The left end of outer valve sleeve also has internal thread to connect swivel nut 14, and 40 ° awl 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 is connected 8 with external thread sleeve and combines, and it is step-like that machined becomes; Interior pressure adjusting spring 6 and the push rod 9 placed; Seal ring 13 is housed on swivel nut 14, prevents from the leakage of outside thread joint, the left end of swivel nut 14 also has one section internal thread; In order to connection pressure regulation bar 16, and play the pressure regulation effect.
Endoporus is processed with the Steel Cable Baffle Ring groove to adjustment sleeve in the right part, places Steel Cable Baffle Ring 10, and endoporus is processed into step-like, is used to limit 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 the removable relief valve of valve pocket was packed system into, fluid got in the main aperture of valve pocket 1 through axially oblique aperture 01, rotates adjustment sleeve 18 this moment; Effect through pin 17; Make pressure regulation bar 16 rotate simultaneously,, make the pressure regulation bar move forward and backward transmission through steel ball 15 because pressure regulation bar 16 is relations of screw pair with swivel nut 14; 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 with different power.Leak oil and from hole 04, flow out oil sump tank, the effect of Steel Cable Baffle Ring is to prevent that excessive rotary regulating sleeve from causing the pressure regulation bar to skid off, and the degree of depth of the step hole of rotary sleeve has been confirmed maximum pressure simultaneously.
More than show and described the advantage of basic principle, major character and the utility model of the utility model.The technician of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; The utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.
Claims (4)
1. the removable relief valve of valve pocket comprises a valve pocket, has a spool in the valve pocket, it is characterized in that; One end of said 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; Have an adjustable lever in the adjustment sleeve, adjustable lever connects a push rod, and push rod is arranged on outer valve sleeve inside; Be with spring on the push rod, push rod one end connects spool, and the other end of spring is enclosed within on the spool.
2. the removable relief valve of valve pocket 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. the removable relief valve of valve pocket according to claim 1 is characterized in that through being threaded, the valve pocket end has outside thread between valve pocket and the outer valve sleeve, and the outer valve sleeve end has internal thread, and valve pocket screws in the outer valve sleeve.
4. the removable relief valve of valve pocket according to claim 1 is characterized in that, said spool has a taper oil sealing surface for the taper valve core of band damping spool, spool middle part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120245348U CN202140363U (en) | 2011-07-12 | 2011-07-12 | Overflow valve with detachable valve housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120245348U CN202140363U (en) | 2011-07-12 | 2011-07-12 | Overflow valve with detachable valve housing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202140363U true CN202140363U (en) | 2012-02-08 |
Family
ID=45551421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120245348U Expired - Fee Related CN202140363U (en) | 2011-07-12 | 2011-07-12 | Overflow valve with detachable valve housing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202140363U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878301A (en) * | 2011-07-12 | 2013-01-16 | 上海立新液压有限公司 | Overflow valve with detachable valve sleeve |
-
2011
- 2011-07-12 CN CN201120245348U patent/CN202140363U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878301A (en) * | 2011-07-12 | 2013-01-16 | 上海立新液压有限公司 | Overflow valve with detachable valve sleeve |
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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: 20120208 Termination date: 20160712 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |