CN203098881U - Valve free from external leakage - Google Patents
Valve free from external leakage Download PDFInfo
- Publication number
- CN203098881U CN203098881U CN 201320056257 CN201320056257U CN203098881U CN 203098881 U CN203098881 U CN 203098881U CN 201320056257 CN201320056257 CN 201320056257 CN 201320056257 U CN201320056257 U CN 201320056257U CN 203098881 U CN203098881 U CN 203098881U
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- valve
- oil
- cylinder
- valve rod
- rod
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- Expired - Fee Related
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Abstract
The utility model provides a valve free from external leakage. The valve is formed by a valve body (1), a valve clack (2), a valve rod (3), a middle end cover (4), an oil cylinder (5), a piston (6), a cylinder cover (7), a position sensor (8), an oil cylinder seal (9), a medium seal (10) and a hydraulic control system. The valve free from external leakage has the advantages that the internally-arranged position sensor is used for detecting the opening degree of the valve; and the valve rod or a piston rod is not exposed. An isolation chamber is arranged between a valve rod seal and a piston rod seal. A few media or a little hydraulic oil leaked from the valve rod enters the isolation chamber and then enters a leakage recovery pipeline through a leakage recovery mouth of the isolation chamber. Therefore, the valve free from external leakage can ensure that a few media or a little hydraulic oil leaked from the valve rod cannot be leaked into a valve installation site.
Description
Technical field
The utility model relates to valve field, is specifically related to a kind of no external leakage valve.
Background technique
At present, general valve all has valve stem seal, the piston rod of hydraulic control valve also has rod seal, the part of valve rod and piston rod is exposed outside, basically adopt the sealing of filler or seal ring at present, valve is behind multiple switching, and packing seal or seal ring are difficult to avoid leak, cause environmental pollution easily, even breaking out of fire, blast, intoxication accident.
Summary of the invention
The purpose of this utility model has all at present general valve that the piston rod of valve stem seal, hydraulic control valve also has the part of rod seal, valve rod and piston rod exposed outside, valve is difficult to avoid leak, cause the deficiency of environmental pollution even breaking out of fire, blast, intoxication accident easily behind multiple switching, and a kind of no external leakage valve is provided.
The utility model is by valve body, flap, valve rod, middle end cap, oil cylinder, piston, cylinder cap, position transducer, cylinder seal, medium-tight and hydraulic control system are formed, have uncovered on the valve body, be provided with the MEDIA FLOW port between the inlet of valve body and the outlet, middle end cap is installed in the open-mouth of valve body, middle-end covers and is respectively equipped with the leakage recovery approach, A hydraulic oil channel and valve rod mounting hole, cylinder seal and medium-tight are installed in the middle end cap, oil cylinder is installed in the middle-end tops, piston is installed in the oil cylinder, and contact with oil cylinder inner wall, have the valve rod mounting hole on the piston, valve rod top is installed in the mounting hole of piston, the stem lower portion branch is arranged in the valve rod mounting hole of end cap, and flap is installed in stem bottom, and the MEDIA FLOW port top of position valve body, cylinder cap is installed on the oil cylinder, be respectively equipped with B hydraulic oil channel and position transducer mounting hole on the cylinder cap, position transducer is installed in the mounting hole place of cylinder cap, and is positioned at the valve rod top.
No external leakage valve is controlled by hydraulic control system, hydraulic control system is made up of fuel tank, oil pump, relief valve and selector valve, the signal output part of position transducer is electrically connected with the signal input part of selector valve, the filler opening of oil pump communicates by in oil pipe and the fuel tank, the oil outlet of oil pump communicates by the import of oil pipe with selector valve and relief valve, four hydraulic fluid ports of selector valve communicate with A hydraulic oil channel, B hydraulic oil channel, oil pump and fuel tank by oil pipe respectively, and the outlet of relief valve communicates by in oil pipe and the fuel tank.
A kind of no external leakage valve of the utility model, its feature also is not have the external leakage valve and is controlled by hydraulic control system.Hydraulic control system is made up of fuel tank, oil pump, relief valve and selector valve, and the signal output part of position transducer is electrically connected with the signal input part of selector valve.
The utility model advantage is: no external leakage valve adopts embedded position sensor valve opening.Valve rod/piston rod does not expose.Between cylinder seal and medium-tight, separate cavities is arranged, from the medium of medium-tight small leakage or from the hydraulic oil of cylinder seal small leakage, enter separate cavities, leakage by separate cavities is reclaimed and mouthful is entered the leakage recovery channel, guarantees can not leak from the medium of medium-tight small leakage or from the hydraulic oil of cylinder seal small leakage to drain to the valve installation site.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model closed condition structural representation.
Fig. 3 is the utility model half-open position structural representation.
Fig. 4 is the utility model full-gear structural representation.
Embodiment
As shown in Figure 1, the utility model is by a kind of no external leakage valve, it is characterized in that it is by valve body 1, flap 2, valve rod 3, middle end cap 4, oil cylinder 5, piston 6, cylinder cap 7, position transducer 8, cylinder seal 9, medium-tight 10 and hydraulic control system are formed, have uncovered on the valve body 1, be provided with MEDIA FLOW port 1-1 between the inlet of valve body 1 and the outlet, middle end cap 4 is installed in the open-mouth of valve body 1, be respectively equipped with on the middle end cap 4 and leak recovery approach 4-1, A hydraulic oil channel 4-2 and valve rod 3 mounting holes, cylinder seal 9 and medium-tight 10 are installed in the middle end cap 4, oil cylinder 5 is installed in middle end cap 4 tops, piston 6 is installed in the oil cylinder 5, and contact with oil cylinder 5 inwalls, have valve rod 3 mounting holes on the piston 6, valve rod 3 tops are installed in the mounting hole of piston 6, valve rod 3 bottoms are arranged in valve rod 3 mounting holes of end cap 4, flap 2 is installed in valve rod 3 bottoms, and the MEDIA FLOW port 1-1 top of position valve body 1, cylinder cap 7 is installed on the oil cylinder 5, be respectively equipped with B hydraulic oil channel 7-1 and position transducer mounting hole on the cylinder cap 7, position transducer 8 is installed in the mounting hole place of cylinder cap 7, and is positioned at valve rod 3 tops.
No external leakage valve is controlled by hydraulic control system, hydraulic control system is by fuel tank 13, oil pump 14, relief valve 12 and selector valve 11 are formed, the signal output part of position transducer 8 is electrically connected with the signal input part of selector valve 11, the filler opening of oil pump 14 communicates by in oil pipe and the fuel tank 13, the oil outlet of oil pump 14 communicates by the import of oil pipe with selector valve 11 and relief valve 12, four hydraulic fluid ports of selector valve 11 are respectively by oil pipe and A hydraulic oil channel 4-2, B hydraulic oil channel 7-1, oil pump 14 and fuel tank 13 communicate, and the outlet of relief valve 12 communicates by in oil pipe and the fuel tank 13.
The utility model is a kind of not to be had the external leakage valve and is controlled by hydraulic control system.Hydraulic control system is made up of fuel tank 13, oil pump 14, relief valve 12 and selector valve 11, and the signal output part of position transducer 8 is electrically connected with the signal input part of selector valve 11.
Leak the effect of recovery approach 4-1: cylinder seal 9 and medium-tight 10 are arranged on the valve rod 3, medium in hydraulic oil that leaks from cylinder seal 9 and the valve that leaks from medium-tight, insert recovery channel by leaking recovery approach 4-1, medium does not leak outside in the valve of guaranteeing the hydraulic oil that leaks from cylinder seal 9 and leaking from medium-tight, guarantee that simultaneously hydraulic oil can not leak in the valve, medium can not leak in the oil cylinder 5 in the valve.
Valve closing mode of operation: as shown in Figure 2, after the hydraulic oil in the fuel tank 13 is through oil pump 14 pressurizations, through solenoid directional control valve 11, when the B hydraulic oil channel 7-1 of cylinder cap 7 enters the top, oil cylinder 5 bottom hydraulic oil of oil cylinder 5 therefrom the A hydraulic oil channel 4-2 of end cap 4 flows back to fuel tank through solenoid directional control valve 11, piston 6 drives by valve rod that flap is descending to contact valve closing with valve body until flap.
Valve opening mode of operation: as shown in Figure 2, after the hydraulic oil in the fuel tank 13 is through oil pump 14 pressurizations, through solenoid directional control valve 11, therefrom the A hydraulic oil channel 4-2 of end cap 4 bottom, oil cylinder 5 top hydraulic oil that enter oil cylinder 5 is when the B hydraulic oil channel 7-1 of cylinder cap 7 flows back to fuel tank through solenoid directional control valve 11, piston 6 drives by valve rod that flap is up to contact valve opening with cylinder cap until piston.
Valve is in the process of opening or closing, and when selector valve 11 was switched to stop position, valve can rest on the arbitrary position.Promptly by the control selector valve can control valve the position.
The effect of relief valve: open when system pressure is higher than setting value, make in the unnecessary hydraulic pressure oil spill oil sump tank 9, guarantee the relief valve inlet pressure, promptly oil pump 10 outlet pressures are constant.
Claims (2)
1. no external leakage valve, it is characterized in that it is by valve body (1), flap (2), valve rod (3), middle end cap (4), oil cylinder (5), piston (6), cylinder cap (7), position transducer (8), cylinder seal (9), medium-tight (10) and hydraulic control system are formed, have uncovered on the valve body (1), be provided with MEDIA FLOW port (1-1) between the inlet of valve body (1) and the outlet, middle end cap (4) is installed in the open-mouth of valve body (1), be respectively equipped with on the middle end cap (4) and leak recovery approach (4-1), A hydraulic oil channel (4-2) and valve rod (3) mounting hole, cylinder seal (9) and medium-tight (10) are installed in the middle end cap (4), oil cylinder (5) is installed in middle end cap (4) top, piston (6) is installed in the oil cylinder (5), and contact with oil cylinder (5) inwall, have valve rod (3) mounting hole on the piston (6), valve rod (3) top is installed in the mounting hole of piston (6), valve rod (3) bottom is arranged in valve rod (3) mounting hole of end cap (4), flap (2) is installed in valve rod (3) bottom, and the MEDIA FLOW port (1-1) of position valve body (1) top, cylinder cap (7) is installed on the oil cylinder (5), be respectively equipped with B hydraulic oil channel (7-1) and position transducer mounting hole on the cylinder cap (7), position transducer (8) is installed in the mounting hole place of cylinder cap (7), and is positioned at valve rod (3) top.
2. a kind of no external leakage valve according to claim 1, its feature also is not have the external leakage valve and is controlled by hydraulic control system, hydraulic control system is by fuel tank (13), oil pump (14), relief valve (12) and selector valve (11) are formed, the signal output part of position transducer (8) is electrically connected with the signal input part of selector valve (11), the filler opening of oil pump (14) communicates by in oil pipe and the fuel tank (13), the oil outlet of oil pump (14) communicates by the import of oil pipe with selector valve (11) and relief valve (12), four hydraulic fluid ports of selector valve (11) are respectively by oil pipe and A hydraulic oil channel (4-2), B hydraulic oil channel (7-1), oil pump (14) and fuel tank (13) communicate, and the outlet of relief valve (12) communicates by in oil pipe and the fuel tank (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320056257 CN203098881U (en) | 2013-02-01 | 2013-02-01 | Valve free from external leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320056257 CN203098881U (en) | 2013-02-01 | 2013-02-01 | Valve free from external leakage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203098881U true CN203098881U (en) | 2013-07-31 |
Family
ID=48850286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320056257 Expired - Fee Related CN203098881U (en) | 2013-02-01 | 2013-02-01 | Valve free from external leakage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203098881U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968081A (en) * | 2014-05-09 | 2014-08-06 | 江苏滔海机械制造有限公司 | Simple water seal valve in negative pressure liquid inlet state |
| CN105042096A (en) * | 2015-07-10 | 2015-11-11 | 四川奇胜科技有限公司 | Hydraulic control mechanism convenient to reset |
| CN105065681A (en) * | 2015-07-10 | 2015-11-18 | 四川奇胜科技有限公司 | Hydraulic control mechanism |
| CN109219485A (en) * | 2016-05-31 | 2019-01-15 | 武藏工业株式会社 | Discharging liquid material device, its apparatus for coating and coating method |
| CN109311043A (en) * | 2016-05-30 | 2019-02-05 | 武藏工业株式会社 | Discharging liquid material device, its apparatus for coating and coating method |
| CN111075931A (en) * | 2020-01-08 | 2020-04-28 | 浙江准创机电设备有限公司 | Hydraulic control needle valve |
| CN111895115A (en) * | 2020-06-30 | 2020-11-06 | 北京精密机电控制设备研究所 | High-temperature cone valve with cooling structure |
| CN112682546A (en) * | 2020-12-07 | 2021-04-20 | 河南航天液压气动技术有限公司 | Pressure control valve |
| CN113309865A (en) * | 2021-05-31 | 2021-08-27 | 郭明 | Hydrogen valve with reveal hydrogen and get rid of function |
| CN114763844A (en) * | 2021-01-15 | 2022-07-19 | 玛珂系统分析和开发有限公司 | Metering valve |
-
2013
- 2013-02-01 CN CN 201320056257 patent/CN203098881U/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968081B (en) * | 2014-05-09 | 2016-03-16 | 江苏滔海机械制造有限公司 | Simple and easy water seal valve under negative pressure feed liquor state |
| CN103968081A (en) * | 2014-05-09 | 2014-08-06 | 江苏滔海机械制造有限公司 | Simple water seal valve in negative pressure liquid inlet state |
| CN105042096A (en) * | 2015-07-10 | 2015-11-11 | 四川奇胜科技有限公司 | Hydraulic control mechanism convenient to reset |
| CN105065681A (en) * | 2015-07-10 | 2015-11-18 | 四川奇胜科技有限公司 | Hydraulic control mechanism |
| CN109311043B (en) * | 2016-05-30 | 2021-04-09 | 武藏工业株式会社 | Liquid material discharge device, and coating device and coating method therefor |
| CN109311043A (en) * | 2016-05-30 | 2019-02-05 | 武藏工业株式会社 | Discharging liquid material device, its apparatus for coating and coating method |
| CN109219485A (en) * | 2016-05-31 | 2019-01-15 | 武藏工业株式会社 | Discharging liquid material device, its apparatus for coating and coating method |
| CN109219485B (en) * | 2016-05-31 | 2021-08-31 | 武藏工业株式会社 | Liquid material discharge device, and coating device and coating method therefor |
| CN111075931A (en) * | 2020-01-08 | 2020-04-28 | 浙江准创机电设备有限公司 | Hydraulic control needle valve |
| CN111895115A (en) * | 2020-06-30 | 2020-11-06 | 北京精密机电控制设备研究所 | High-temperature cone valve with cooling structure |
| CN112682546A (en) * | 2020-12-07 | 2021-04-20 | 河南航天液压气动技术有限公司 | Pressure control valve |
| CN114763844A (en) * | 2021-01-15 | 2022-07-19 | 玛珂系统分析和开发有限公司 | Metering valve |
| CN114763844B (en) * | 2021-01-15 | 2024-06-11 | 玛珂系统分析和开发有限公司 | Metering valve |
| CN113309865A (en) * | 2021-05-31 | 2021-08-27 | 郭明 | Hydrogen valve with reveal hydrogen and get rid of function |
| CN113309865B (en) * | 2021-05-31 | 2023-11-24 | 涿州市烽合机械设备有限公司 | Hydrogen valve with leak hydrogen and get rid of function |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20170201 |