CN104314900B - A kind of automatic stop valve - Google Patents
A kind of automatic stop valve Download PDFInfo
- Publication number
- CN104314900B CN104314900B CN201410439425.2A CN201410439425A CN104314900B CN 104314900 B CN104314900 B CN 104314900B CN 201410439425 A CN201410439425 A CN 201410439425A CN 104314900 B CN104314900 B CN 104314900B
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- China
- Prior art keywords
- oil
- hydraulic oil
- low voltage
- voltage control
- oil flow
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a kind of automatic stop valve, including valve body, valve body is provided with hydraulic oil flow channel, hydraulic oil flow pass and low voltage control oil passage, the oil-in of hydraulic oil flow channel and the oil-out of an electrodynamic pump, an oil cylinder is interconnected, when low voltage control oil passage flows into low voltage control oil, hydraulic oil flow channel and hydraulic oil flow pass disconnect, and the hydraulic oil that the oil-out of electrodynamic pump flows out flows directly into the oil-in of oil cylinder；When low voltage control oil passage no pressure oil, the hydraulic oil that the oil-out of electrodynamic pump flows out returns to fuel tank through hydraulic oil flow channel, hydraulic oil flow pass successively.The present invention controls the opening and closing of high pressure hydraulic fluid port by low voltage control oil, when electric priming pump, piston blocks valve port thus cutoff high oil flow channel and the oil circuit of hydraulic oil flow pass under low pressure oil effect, when electrodynamic pump stops, valve port automatically opens up, hydraulic oil returns to fuel tank through hydraulic oil flow pass, and its simple in construction, practicality are good.
Description
Technical field
The present invention relates to control valve technical field, particularly relate to a kind of automatic stop valve.
Background technology
Stop valve of the prior art, operation is excessively complicated, can't realize self-sealing and unlatching, make troubles to work.Accordingly, it would be desirable to technical progress, the improvement in structure so that the automaticity of stop valve is higher.
Summary of the invention
The present invention mainly solves the technical problem in the presence of prior art, thus provides the automatic stop valve that a kind of simple in construction, practicality are good.
The above-mentioned technical problem of the present invention is mainly addressed by following technical proposals:
The automatic stop valve that the present invention provides, including valve body, described valve body is provided with hydraulic oil flow channel, hydraulic oil flow pass and low voltage control oil passage, the oil-in of described hydraulic oil flow channel and the oil-out of an electrodynamic pump, an oil cylinder is interconnected, when described low voltage control oil passage flows into low voltage control oil, described hydraulic oil flow channel and hydraulic oil flow pass disconnect, and the hydraulic oil that the oil-out of described electrodynamic pump flows out flows directly into the oil-in of described oil cylinder；When described low voltage control oil passage no pressure oil, the hydraulic oil that the oil-out of described electrodynamic pump flows out returns to fuel tank through described hydraulic oil flow channel, hydraulic oil flow pass successively.
Further, also include piston and plug, described plug is arranged on the open side of described valve body, and for closed valve, described piston is arranged in described valve body, and described piston is positioned at the cross section of low voltage control oil side and is positioned at the cross section of described hydraulic oil side, and the most sheathed spring on described piston more than it, when low voltage control oil passage flows into low voltage control oil, described piston moves to left and cuts off described high hydraulic oil flow channel and hydraulic oil flow pass；When described low voltage control oil passage no pressure oil, described piston moves to right, and described hydraulic oil flow channel is connected with hydraulic oil flow pass.
Further, described hydraulic oil flow channel and low voltage control oil passage aperture are mounted on the first sealing ring, and described first sealing ring is O.
Further, being provided with the second sealing ring between described piston and described valve body, described second sealing ring is O.
Further, it is provided with sealing gasket between described plug and described valve body.
Further, described valve body is connected with electrodynamic pump oil path block with four M6 bolts.
Further, the pressure of described low voltage control oil and the pressure of hydraulic oil are respectively 3MPa and 70MPa.
The beneficial effects of the present invention is: controlled the opening and closing of high pressure hydraulic fluid port by low voltage control oil, when electric priming pump, piston blocks valve port thus cutoff high oil flow channel and the oil circuit of hydraulic oil flow pass under low pressure oil effect, system is made to set up the operating pressure reaching to set, when electrodynamic pump stops, valve port automatically opens up, and hydraulic oil returns to fuel tank through hydraulic oil flow pass, and its simple in construction, practicality are good.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the automatic stop valve of the present invention；
Fig. 2 is the top view of the automatic stop valve of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings the preferred embodiments of the present invention are described in detail, so that advantages and features of the invention can be easier to be readily appreciated by one skilled in the art, thus protection scope of the present invention are made apparent clear and definite defining.
Inventive conception is that: utilize area ratio to realize controlling the hydraulic valve of the opening and closing of high pressure hydraulic fluid port (70MPa) by low pressure oil (3MPa).When electric priming pump, piston blocks valve port thus oil circuit between cutoff high oil pocket (70MPa) and fuel tank under 3MPa low pressure oil effect, makes system set up the operating pressure reaching 70MPa.When electrodynamic pump stops, valve port automatically opens up, and oil returns to fuel tank.
Refering to shown in Fig. 1-2, the automatic stop valve of the present invention, including valve body 6, valve body 6 is provided with hydraulic oil flow channel P, hydraulic oil flow pass T and low voltage control oil passage K, hydraulic oil flow channel P and the oil-out A of an electrodynamic pump, the oil-in of an oil cylinder are interconnected, when low voltage control oil passage K flows into low voltage control oil, hydraulic oil flow channel P and hydraulic oil flow pass T disconnects, and the oil-out A of electrodynamic pump flows out hydraulic oil and flows directly into the oil-in of oil cylinder；When low voltage control oil passage K no pressure oil, the hydraulic oil that the oil-out A of described electrodynamic pump flows out returns to fuel tank through hydraulic oil flow channel P, hydraulic oil flow pass T successively.Wherein, the pressure of low voltage control oil and the pressure of hydraulic oil are respectively 3MPa and 70MPa.
This automatic stop valve also includes piston 3 and plug 8, and plug 8 is arranged on the open side of valve body 6, and for closed valve 6, in order to increase sealing effectiveness, is provided with sealing gasket 7 between plug 8 and valve body 6.The purpose arranging plug 8 is for convenience of maintenance and to assemble.Piston 3 is arranged in valve body 6, and piston 3 is positioned at the cross section of low voltage control oil side and is positioned at the cross section of hydraulic oil side more than it, thus realizes the purpose of low voltage control high pressure.And the most sheathed spring 2 on piston 3, when low voltage control oil passage K flows into low voltage control oil, piston 3 moves to left and cuts off high hydraulic oil flow channel P and hydraulic oil flow pass T；When low voltage control oil passage K no pressure oil, piston 3 moves to right under the elastic force effect of spring 2, and hydraulic oil sequentially passes through hydraulic oil flow channel P, hydraulic oil flow pass T returns to fuel tank.
In order to match with remaining pipeline, and ensureing that its sealing, hydraulic oil flow channel P and low voltage control oil passage K aperture are mounted on the first sealing ring 1, the first sealing ring 1 is preferably O, being provided with the second sealing ring 4 between piston 3 and valve body 6, the second sealing ring 4 is preferably O.
Below for the work process of automatic stop valve, the present invention is further introduced:
Start electrodynamic pump, while hydraulic oil inflow high-pressure oil flow enters passage P, low voltage control oil passage K also flows into low voltage control oil, piston 3 overcomes the power of spring 2 to block valve port under low voltage control oil effect, thus cutoff high oil flow channel P and the oil circuit of hydraulic oil flow pass T, hydraulic oil enters in oil cylinder from the oil-out A of electrodynamic pump, when needing backhaul, close electrodynamic pump, distress resolves in low voltage control oil passage K, piston 3 is homing under the effect of spring 2, valve port is opened, fluid is successively through entering passage P, hydraulic oil flow pass T returns to fuel tank, and so forth.
Above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited thereto, any change expected without creative work or replacement, all should contain within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims are limited.
Claims (4)
1. an automatic stop valve, including valve body (6), it is characterized in that: described valve body (6) is provided with hydraulic oil flow channel (P), hydraulic oil flow pass (T) and low voltage control oil passage (K), described hydraulic oil flow channel (P) is interconnected with oil-out (A), the hydraulic fluid port of an oil cylinder of an electrodynamic pump, when described low voltage control oil passage (K) flows into low voltage control oil, described hydraulic oil flow channel (P) and hydraulic oil flow pass (T) disconnect, and the hydraulic oil that the oil-out (A) of described electrodynamic pump flows out flows directly into the hydraulic fluid port of described oil cylinder；When described low voltage control oil passage (K) no pressure oil, the hydraulic oil that the oil-out (A) of described electrodynamic pump flows out returns to fuel tank through described hydraulic oil flow channel (P), hydraulic oil flow pass (T) successively；
The pressure of described low voltage control oil and the pressure of hydraulic oil are respectively 3MPa and 70MPa；
Also include piston (3) and plug (8), described plug (8) is arranged on the open side of described valve body (6), and for closed valve (6), described piston (3) is arranged in described valve body (6), and described piston (3) is positioned at the cross section of low voltage control oil side and is positioned at the cross section of described hydraulic oil side more than it, and described piston (3) the most sheathed upper spring (2), when low voltage control oil passage (K) flows into low voltage control oil, described piston (3) moves to left and cuts off described hydraulic oil flow channel (P) and hydraulic oil flow pass (T)；When described low voltage control oil passage (K) no pressure oil, described piston (3) moves to right, and described hydraulic oil flow channel (P) is connected with hydraulic oil flow pass (T)；
Described valve body (6) is connected with electrodynamic pump oil path block with four M6 bolts (5).
2. automatic stop valve as claimed in claim 1, it is characterised in that: described hydraulic oil flow channel (P) and low voltage control oil passage (K) aperture are mounted on the first sealing ring (1), and described first sealing ring (1) is O.
3. automatic stop valve as claimed in claim 1, it is characterised in that: being provided with the second sealing ring (4) between described piston (3) and described valve body (6), described second sealing ring (4) is O.
4. automatic stop valve as claimed in claim 1, it is characterised in that: it is provided with sealing gasket (7) between described plug (8) and described valve body (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410439425.2A CN104314900B (en) | 2014-09-01 | 2014-09-01 | A kind of automatic stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410439425.2A CN104314900B (en) | 2014-09-01 | 2014-09-01 | A kind of automatic stop valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104314900A CN104314900A (en) | 2015-01-28 |
| CN104314900B true CN104314900B (en) | 2016-09-14 |
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ID=52370183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410439425.2A Active CN104314900B (en) | 2014-09-01 | 2014-09-01 | A kind of automatic stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104314900B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113565821A (en) * | 2021-06-30 | 2021-10-29 | 郑州磨料磨具磨削研究所有限公司 | Hydraulic stop valve capable of adjusting closing pressure and hydraulic system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08334180A (en) * | 1995-06-07 | 1996-12-17 | Sun Tec:Kk | Stop valve |
| DE202008017688U1 (en) * | 2008-10-23 | 2010-04-15 | Kkt Gmbh | Lifting drive for a press or cutting tool for cable processing |
| CN201513569U (en) * | 2009-10-23 | 2010-06-23 | 常州乙顿液压气动机械制造有限公司 | Large-diameter normal open hydraulic control stop valve |
| CN202273927U (en) * | 2011-09-10 | 2012-06-13 | 鞍钢股份有限公司 | Labor-saving hydraulic stop valve |
| CN202579400U (en) * | 2012-05-12 | 2012-12-05 | 宫禄齐 | Ultra-high pressure stop valve |
| CN103573732B (en) * | 2013-09-09 | 2016-02-17 | 山东大学 | A kind of ultra-high pressure high flow supercharging formula fluid-controlled cut-off valve and application thereof |
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2014
- 2014-09-01 CN CN201410439425.2A patent/CN104314900B/en active Active
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| Publication number | Publication date |
|---|---|
| CN104314900A (en) | 2015-01-28 |
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