CN104632742A - Direct action type reducing valve - Google Patents
Direct action type reducing valve Download PDFInfo
- Publication number
- CN104632742A CN104632742A CN201410786674.9A CN201410786674A CN104632742A CN 104632742 A CN104632742 A CN 104632742A CN 201410786674 A CN201410786674 A CN 201410786674A CN 104632742 A CN104632742 A CN 104632742A
- Authority
- CN
- China
- Prior art keywords
- valve
- pressure
- upper cover
- pressure oil
- valve body
- 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
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
- F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
- F16K17/30—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
- F16K11/044—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with movable valve members positioned between valve seats
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0473—Multiple-way safety valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a direct action type reducing valve which comprises a valve body. The direct action type reducing valve is characterized in that the valve further comprises an upper cover, a lower cover, a valve element, a pressure regulating spring and a spring seat; the two ends of the valve body are provided with the upper cover and the lower cover, the valve element is arranged in the valve body and the upper cover, the side face of the valve body is provided with a first pressure oil opening and a second pressure oil opening, a cylindrical circular bead at the lower end of the valve element and a valve hole form a normally-opened valve opening communicated with the first pressure oil opening, the pressure regulating spring is arranged in the valve body, the spring seat connected with the top end of the pressure regulating spring is arranged in the upper cover, the side face of the upper cover is provided with an oil drainage opening connected with the valve element, and the second pressure oil opening is connected with the bottom of the valve element through a runner. The direct action type reducing valve is simple in structure, convenient to use, capable of achieving backflow and regulating precompression of the spring quickly and suitable for being used in different conditions.
Description
Technical field
The present invention relates to a kind of reduction valve, particularly relate to a kind of direct acting pressure.
Background technique
Reduction valve is by regulating, inlet pressure being reduced to the outlet pressure of a certain needs, and rely on the energy of medium itself, make the valve that outlet pressure keeps stable automatically.From hydromechanical viewpoint, reduction valve is the throttle element that a local resistance can change, and namely by changing orifice size, the kinetic energy of flow velocity and fluid being changed, causes the different pressure losses, thus reach the object of decompression.And current structure of relief pressure valve is complicated, decompression cannot be realized preferably, and be not provided with return opening, oil sump tank cannot be received, can only carry out the conveying of fluid, very easily damage, working life is shorter, pressure-relief valve spring prestressing force cannot regulate preferably simultaneously, causes reduction valve to use so very inconvenient.
Summary of the invention
Complicated in order to solve structure of relief pressure valve in prior art, decompression cannot be realized preferably, and be not provided with return opening, oil sump tank cannot be received, the conveying of fluid can only be carried out, very easily damage, working life is shorter, pressure-relief valve spring prestressing force cannot regulate preferably simultaneously, causes reduction valve to use very inconvenient problem like this, the invention provides a kind of structure simple, easy to use, backflow can be realized, and can the precompression of quick adjustment spring, be applicable to the direct acting pressure that different situations use.
In order to solve the problem, the technical solution used in the present invention is:
A kind of direct acting pressure, comprise valve body, it is characterized in that: also comprise upper cover, lower cover, spool, pressure adjusting spring and spring seat, upper cover and lower cover is respectively arranged with at valve body two ends, spool is provided with in valve body and upper cover, the first pressure oil port and the second pressure oil port is provided with in the side of valve body, described spool lower end cylinder shoulder and valve opening form the normally open valve mouth that be connected through with the first pressure oil port, valve inner is provided with pressure adjusting spring, the spring seat connecting pressure adjusting spring top is provided with in upper cover, the drain tap be connected with spool is provided with in the side of upper cover, described second pressure oil port is connected with bottom spool by runner.
Aforesaid a kind of direct acting pressure, is characterized in that: described first pressure oil port is identical with the second pressure oil port bore.
Aforesaid a kind of direct acting pressure, is characterized in that: spring seat top is provided with adjusting screw.
Aforesaid a kind of direct acting pressure, is characterized in that: described valve body adopts stainless steel material to make.
Aforesaid a kind of direct acting pressure, is characterized in that: described drain tap bore is less than the first pressure oil port bore.
Aforesaid a kind of direct acting pressure, is characterized in that: institute's spring seat adopts alloy material to make.
The invention has the beneficial effects as follows: direct acting pressure of the present invention, the first pressure oil port and the second pressure oil port is provided with in the side of valve body, described spool lower end cylinder shoulder and valve opening form the normally open valve mouth that be connected through with the first pressure oil port, the drain tap be connected with spool is provided with in the side of upper cover, fluid can be realized by drain tap and be back to fuel tank, use convenient, spring seat top is provided with adjusting screw simultaneously, like this can be according to actual needs, changed the precompression of pressure adjusting spring by adjusting screw, meet different use needs.
Accompanying drawing explanation
Fig. 1 is direct acting pressure structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
As shown in Figure 1, a kind of direct acting pressure, comprise valve body 1, upper cover 2, lower cover 3, spool 4, pressure adjusting spring 5 and spring seat 6, upper cover 2 and lower cover 3 is respectively arranged with at valve body 1 two ends, spool 4 is provided with in valve body 1 and upper cover 2, the first pressure oil port 7 and the second pressure oil port 8 is provided with in the side of valve body 4, described spool 4 lower end cylinder shoulder and valve opening form the normally open valve mouth that be connected through with the first pressure oil port 7, valve body 1 inside is provided with pressure adjusting spring 5, the spring seat 6 connecting pressure adjusting spring 5 top is provided with in upper cover 2, the drain tap 9 be connected with spool 4 is provided with in 2 sides of upper cover, described second pressure oil port 8 is connected with bottom spool 4 by runner 10.Described first pressure oil port 7 is identical with the second pressure oil port 8 bore.Spring seat 6 top is provided with adjusting screw 11.Described valve body 1 adopts stainless steel material to make.Described drain tap 9 bore is less than the first pressure oil port 7 bore.Institute's spring seat 6 adopts alloy material to make.
Direct acting pressure of the present invention, pressure oil forms normally open valve mouth from the first pressure oil port 7 through between the lower end cylinder shoulder and valve opening of spool 4, then low pressure branch road is flowed to from the second pressure oil port 8, fed back by runner 10 simultaneously and produce a hydraulic action upwards on spool 4 bottom area, this power is compared with the precompression of pressure adjusting spring 5.When secondary pressure does not reach the setting value of valve, spool 4 is in bottom, valve port standard-sized sheet; When secondary pressure reaches the setting value of valve, spool 3 moves, aperture reduces to realize decompression, constant to maintain secondary pressure, does not change with the change of a pressure.The precompression that different secondary pressures changes pressure adjusting spring 4 by adjusting screw 7 sets.Because secondary hydraulic fluid port does not take back fuel tank, so drain tap 9 must take back fuel tank separately.Turning adjusting screw 7 regulates the pre compressed magnitude of pressure adjusting spring 5, can obtain different cracking pressures.
In sum, direct acting pressure of the present invention, the first pressure oil port 7 and the second pressure oil port 8 is provided with in the side of valve body 1, described spool 4 lower end cylinder shoulder and valve opening form the normally open valve mouth that be connected through with the first pressure oil port 7, the drain tap 9 be connected with spool 4 is provided with in the side of upper cover 2, fluid can be realized by drain tap 9 and be back to fuel tank, use convenient, spring seat 6 top is provided with adjusting screw 1 simultaneously, like this can be according to actual needs, changed the precompression of pressure adjusting spring 5 by adjusting screw 11, meet different use needs.
More than show and describe basic principle of the present invention, major character and advantage.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (6)
1. a direct acting pressure, comprise valve body, it is characterized in that: also comprise upper cover, lower cover, spool, pressure adjusting spring and spring seat, upper cover and lower cover is respectively arranged with at valve body two ends, spool is provided with in valve body and upper cover, the first pressure oil port and the second pressure oil port is provided with in the side of valve body, described spool lower end cylinder shoulder and valve opening form the normally open valve mouth that be connected through with the first pressure oil port, valve inner is provided with pressure adjusting spring, the spring seat connecting pressure adjusting spring top is provided with in upper cover, the drain tap be connected with spool is provided with in the side of upper cover, described second pressure oil port is connected with bottom spool by runner.
2. a kind of direct acting pressure according to claim 1, is characterized in that: described first pressure oil port is identical with the second pressure oil port bore.
3. a kind of direct acting pressure according to claim 2, is characterized in that: spring seat top is provided with adjusting screw.
4. a kind of direct acting pressure according to claim 3, is characterized in that: described valve body adopts stainless steel material to make.
5. a kind of direct acting pressure according to claim 4, is characterized in that: described drain tap bore is less than the first pressure oil port bore.
6. a kind of direct acting pressure according to claim 5, is characterized in that: institute's spring seat adopts alloy material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410786674.9A CN104632742A (en) | 2014-12-18 | 2014-12-18 | Direct action type reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410786674.9A CN104632742A (en) | 2014-12-18 | 2014-12-18 | Direct action type reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104632742A true CN104632742A (en) | 2015-05-20 |
Family
ID=53211853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410786674.9A Pending CN104632742A (en) | 2014-12-18 | 2014-12-18 | Direct action type reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104632742A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907367A (en) * | 2017-04-17 | 2017-06-30 | 西华大学 | New Structure Speed Control Valve |
| CN107725847A (en) * | 2017-11-14 | 2018-02-23 | 西安交通大学 | A kind of Direct Action Type two-way pressure-reducing valve using pressure feedback |
| CN110332166A (en) * | 2019-07-09 | 2019-10-15 | 南通翔骜液压润滑设备有限公司 | Stacked compression release valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2535035A1 (en) * | 1975-08-06 | 1977-02-24 | Indramat Gmbh | Balanced pressure reducing valve - has servo valve designed as direct acting three way pressure reducing valve |
| DE3307242A1 (en) * | 1983-03-02 | 1984-09-06 | Robert Bosch Gmbh, 7000 Stuttgart | Relief valve in a hydraulic system |
| CN101875226A (en) * | 2009-05-03 | 2010-11-03 | 马斯特模具（2007）有限公司 | Has pressure-tight injection molding runner apparatus |
| CN201875226U (en) * | 2010-11-09 | 2011-06-22 | 韩晓新 | Sequence valve |
| CN103291986A (en) * | 2013-06-26 | 2013-09-11 | 无锡商业职业技术学院 | Directly-operated type reducing valve |
| CN203223431U (en) * | 2013-02-20 | 2013-10-02 | 北京海卓力金液压技术有限公司 | Threaded plug-in type three-way reducing valve |
-
2014
- 2014-12-18 CN CN201410786674.9A patent/CN104632742A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2535035A1 (en) * | 1975-08-06 | 1977-02-24 | Indramat Gmbh | Balanced pressure reducing valve - has servo valve designed as direct acting three way pressure reducing valve |
| DE3307242A1 (en) * | 1983-03-02 | 1984-09-06 | Robert Bosch Gmbh, 7000 Stuttgart | Relief valve in a hydraulic system |
| CN101875226A (en) * | 2009-05-03 | 2010-11-03 | 马斯特模具（2007）有限公司 | Has pressure-tight injection molding runner apparatus |
| CN201875226U (en) * | 2010-11-09 | 2011-06-22 | 韩晓新 | Sequence valve |
| CN203223431U (en) * | 2013-02-20 | 2013-10-02 | 北京海卓力金液压技术有限公司 | Threaded plug-in type three-way reducing valve |
| CN103291986A (en) * | 2013-06-26 | 2013-09-11 | 无锡商业职业技术学院 | Directly-operated type reducing valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907367A (en) * | 2017-04-17 | 2017-06-30 | 西华大学 | New Structure Speed Control Valve |
| CN107725847A (en) * | 2017-11-14 | 2018-02-23 | 西安交通大学 | A kind of Direct Action Type two-way pressure-reducing valve using pressure feedback |
| CN107725847B (en) * | 2017-11-14 | 2019-05-21 | 西安交通大学 | A kind of Direct Action Type two-way pressure reducing valve using pressure feedback |
| CN110332166A (en) * | 2019-07-09 | 2019-10-15 | 南通翔骜液压润滑设备有限公司 | Stacked compression release 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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150520 |