CN102537456A - Pressure reducing valve - Google Patents
Pressure reducing valve Download PDFInfo
- Publication number
- CN102537456A CN102537456A CN2012100117694A CN201210011769A CN102537456A CN 102537456 A CN102537456 A CN 102537456A CN 2012100117694 A CN2012100117694 A CN 2012100117694A CN 201210011769 A CN201210011769 A CN 201210011769A CN 102537456 A CN102537456 A CN 102537456A
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- CN
- China
- Prior art keywords
- valve
- spring
- valve body
- spool
- lever
- 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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- Control Of Fluid Pressure (AREA)
Abstract
The invention discloses a pressure reducing valve with good pressure reducing and current limiting effects. A diaphragm divides a valve body into an inner cavity and a spring cavity; the upper end of a valve rod is connected with a spring; the spring is positioned in the spring cavity; the lower end of the valve rod is connected with one end of a lever; the other end of the lever is connected to a valve core; a valve seat is arranged below the inner cavity; the valve core horizontally moves in the valve body; a gap is reserved between the valve core and the valve body; and an inclined hole communicated with the outside of the valve body is formed in the valve core.
Description
Technical field
The present invention relates to a kind of reduction valve.
Background technique
Existing reduction valve adopts the position of spring controlled valve core to reach the effect of decompression current limliting, but the current limitation effect that reduces pressure like this is poor.
Summary of the invention
The technical problem that the present invention will solve provides a kind of good reduction valve of current limitation effect that reduces pressure.
The technological scheme that addresses the above problem is: this reduction valve, and diaphragm is partitioned into inner chamber and spring chamber with valve body, and the upper end of valve rod connects spring; Spring is in spring chamber; The lower end of valve rod connects an end of lever, and the other end of lever is connected to spool, below inner chamber, is provided with valve seat; Spool leaves the slit between move left and right and spool and the valve body in valve body, have the inclined hole with the valve body exterior on the spool.
Can play the effect of decompression current limliting through lever, so the current limitation effect that reduces pressure is good.
Description of drawings
Fig. 1 is the structural representation according to reduction valve of the present invention.
Specific embodiments
As shown in Figure 1, this reduction valve, diaphragm 3 is partitioned into inner chamber 4 and spring chamber 1 with valve body; The upper end of valve rod 2 connects spring 11, and spring 11 is in spring chamber, and the lower end of valve rod 2 connects an end of lever 5; The other end of lever is connected to spool 6; Below inner chamber 4, be provided with valve seat 7, spool leaves slit 71 between move left and right and spool and the valve body in valve body, have the inclined hole 61 with the valve body exterior on the spool.
Working principle of the present invention is following:
When in the valve body during no fluid, diaphragm receives spring (extended state) tension, upwards expands, and valve rod is pulled to highest order, and this moment, lever received the valve rod active force with spool overhead closed state.When fluid gets into valve body from left to right, owing to receive fluid pressure action, when hydrodynamic pressure during greater than lever, spool moves right (active force is through the transmission of lever, and valve rod will move down), and wherein arrow is represented direction of flow.This moment, a part of fluid passed through inclined hole flow valves external on the spool, and another part is through slit flow inlet valve body inner chamber.Because diaphragm receives the pressure effect of cavity fluid, drive valve rod again and rise, through leverage, spool is advanced left by lever, reduces the gap of spool and valve seat, thereby reduces flow.When flow reduced, the hydrodynamic pressure of inner chamber is corresponding can to descend, and receives the effect of the fluid of left end inflow, leverage pulling valve rod, and active force expands diaphragm downwards, so back and forth.Therefore can play the effect of decompression current limliting through lever, so the decompression current limitation effect is good.
The above; It only is preferred embodiment of the present invention; Be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs to the protection domain of technological scheme of the present invention to any simple modification, equivalent variations and modification that above embodiment did.
Claims (1)
1. reduction valve, diaphragm (3) is partitioned into inner chamber (4) and spring chamber (1) with valve body, and the upper end of valve rod (2) connects spring (11); Spring (11) is in spring chamber; It is characterized in that: the lower end of valve rod (2) connects an end of lever (5), and the other end of lever is connected to spool (6), is provided with valve seat (7) in the below of inner chamber (4); Spool leaves slit (71) between move left and right and spool and the valve body in valve body, have the inclined hole (61) with the valve body exterior on the spool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100117694A CN102537456A (en) | 2012-01-16 | 2012-01-16 | Pressure reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100117694A CN102537456A (en) | 2012-01-16 | 2012-01-16 | Pressure reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102537456A true CN102537456A (en) | 2012-07-04 |
Family
ID=46345081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100117694A Pending CN102537456A (en) | 2012-01-16 | 2012-01-16 | Pressure reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102537456A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2024996A (en) * | 1978-07-07 | 1980-01-16 | Singer Co | Orifice device with savety shut-off for pressure regulators |
| JPS6065964A (en) * | 1983-09-20 | 1985-04-15 | Tokico Ltd | Cutoff valve device |
| CN2157365Y (en) * | 1993-06-07 | 1994-02-23 | 王亚东 | Microforce controlled valve |
| CN2632439Y (en) * | 2003-06-12 | 2004-08-11 | 黄卿赞 | Changing-over pressure regulater |
| CN201277360Y (en) * | 2008-10-21 | 2009-07-22 | 上海星星橡胶制品有限公司 | Security release gear and quick release valve employing the same |
| CN202418778U (en) * | 2012-01-16 | 2012-09-05 | 苏州德兰能源科技有限公司 | Reducing valve |
-
2012
- 2012-01-16 CN CN2012100117694A patent/CN102537456A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2024996A (en) * | 1978-07-07 | 1980-01-16 | Singer Co | Orifice device with savety shut-off for pressure regulators |
| JPS6065964A (en) * | 1983-09-20 | 1985-04-15 | Tokico Ltd | Cutoff valve device |
| CN2157365Y (en) * | 1993-06-07 | 1994-02-23 | 王亚东 | Microforce controlled valve |
| CN2632439Y (en) * | 2003-06-12 | 2004-08-11 | 黄卿赞 | Changing-over pressure regulater |
| CN201277360Y (en) * | 2008-10-21 | 2009-07-22 | 上海星星橡胶制品有限公司 | Security release gear and quick release valve employing the same |
| CN202418778U (en) * | 2012-01-16 | 2012-09-05 | 苏州德兰能源科技有限公司 | Reducing 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 |
Application publication date: 20120704 |