CN102297272B - Mix-proof valve - Google Patents
Mix-proof valve Download PDFInfo
- Publication number
- CN102297272B CN102297272B CN2011102616279A CN201110261627A CN102297272B CN 102297272 B CN102297272 B CN 102297272B CN 2011102616279 A CN2011102616279 A CN 2011102616279A CN 201110261627 A CN201110261627 A CN 201110261627A CN 102297272 B CN102297272 B CN 102297272B
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- Prior art keywords
- piston
- medium runner
- valve
- valve stem
- main
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
- F16K31/1225—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston with a plurality of pistons
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/44—Details of seats or valve members of double-seat valves
- F16K1/443—Details of seats or valve members of double-seat valves the seats being in series
- F16K1/446—Details of seats or valve members of double-seat valves the seats being in series with additional cleaning or venting means between the two seats
Abstract
The invention relates to a mix-proof valve, which comprises a valve body, a main valve stem, an auxiliary valve stem, a first medium flow channel and a second medium flow channel, an upper piston and a lower piston. A connecting channel is formed between the first medium flow channel and the second medium flow channel; the valve body is provided with a first air inlet, a second air inlet and a third air inlet which are communicated with a valve cavity from top to bottom in turn; the first air inlet is positioned above the upper piston; the second air inlet is positioned between the upper piston and the lower piston; the third air inlet is positioned below the lower piston; the main valve stem is in link fit with the upper piston; the auxiliary valve stem is in link fit with the lower piston; a compression spring A and a compression spring B are arranged in the valve cavity; and the main valve stem is provided with a liquid discharging channel. By the technical scheme, the mix-proof valve can ensure that different medium flow channels can be separately cleaned, is convenient to use and has a wide application range.
Description
Technical field
The present invention relates to the valve class, particularly a kind of mixing-preventing valve.
Background technique
At present, existing mixing-preventing valve is because structure is too simple, when cleaning; Can not clean different medium runners respectively, yet, because the general medium of carrying of mixing-preventing valve is different; Sometimes need different cleaning solutions to clean, so just make the using scope of mixing-preventing valve be restricted.
Summary of the invention
The object of the invention: in order to overcome the defective of existing technology, the invention provides a kind of mixing-preventing valve, can carry out independent cleaning different medium runners, easy to use, thus make its applied range.
Technological scheme of the present invention: a kind of mixing-preventing valve, include valve body, main valve stem, auxiliary valve rod, be provided with valve pocket in the valve body; Valve body is provided with first medium runner, second medium runner; Described first medium runner is positioned at second medium runner top, and described auxiliary valve rod is set in outside the main valve stem, and main valve stem one end passes first medium runner, second medium runner successively; Auxiliary valve rod one end extends in first medium runner; Be provided with connecting passage between first medium runner and second medium runner, be provided with first suction port, second suction port and the 3rd suction port with the valve pocket conducting on the described valve body from top to bottom successively, be provided with upper piston, lower piston in the described valve pocket; Described first suction port is positioned at the upper piston top; Described second suction port is between upper piston, lower piston, and described the 3rd suction port is positioned at the lower piston below, and described main valve stem and upper piston are linked; Described auxiliary valve rod and lower piston are linked; Also be provided with in the described valve pocket be used for the pressure spring A that main valve stem is resetted downwards and be used for auxiliary valve rod reset downwards, with the pressure spring B that main valve stem upwards resets, described main valve stem is provided with apocenosis passage, realizes blocking of described first medium runner and second medium runner when between auxiliary valve rod and first medium runner bottom and main valve stem and connecting passage inwall, all sealing; Described upper piston moves upward and drives main valve stem and move upward, and moves upward and realizes the conducting of first medium runner and second medium runner thereby promote auxiliary valve rod; Described upper piston move downward drive that main valve stem moves downward and auxiliary valve rod and first medium runner bottom between the conducting of sealing realization apocenosis passage and second medium runner; Described lower piston move upward drive that auxiliary valve rod moves upward and main valve stem and connecting passage inwall between the conducting of sealing realization apocenosis passage and first medium runner.
Adopt technique scheme; When in valve pocket, not pouring pressurized air; All sealings between described auxiliary valve rod and first medium runner bottom and main valve stem and the connecting passage inwall; Described first medium runner and second medium runner are in the state of blocking, and at this moment, first medium runner can be carried different media respectively with second medium runner; When in valve pocket, pouring pressurized air by second suction port; Described pressurized air promotes upper piston and moves upward, and drives main valve stem and moves upward, and moves upward thereby promote auxiliary valve rod; Described first medium runner and second medium runner are on state; At this moment, medium can get into another medium runner from a medium runner wherein, can realize the conveying that medium is not gone the same way; When in valve pocket, pouring pressurized air by first suction port; Described pressurized air promotes upper piston and moves downward; And then drive main valve stem and move downward, the auxiliary valve rod and the first medium runner bottom seals, at this moment; Can carry out independent cleaning to second medium runner, the waste liquid after the cleaning is discharged by apocenosis passage; When in valve pocket, pouring pressurized air by the 3rd suction port, described pressurized air promotes lower piston and moves upward, and then the drive auxiliary valve rod moves upward; Seal between main valve stem and the connecting passage inwall, at this moment, can carry out independent cleaning first medium runner; Waste liquid after the cleaning is discharged by apocenosis passage, and the mixing-preventing valve of this structure can carry out independent cleaning to different medium runners; Easy to use, thus its applied range made.
Further setting of the present invention: described upper piston includes main piston, sub-piston; Described main piston lower end surface is provided with groove; Described sub-piston is arranged in the groove, and described main piston is provided with air hole, and inwall is conflicted on described pressure spring A one end and the valve pocket; Conflicting in the other end and main piston upper-end surface, is provided with in the described valve pocket to be used to limit the upper limit spare that main piston moves downward displacement.
Adopt above-mentioned further setting, when in valve pocket, charging into pressurized air by first suction port, pressurized air gets into the promotion sub-piston from the air hole on the main piston and moves downward, and moves downward thereby drive main valve stem; When in valve pocket, charging into pressurized air by second suction port, pressurized air promotes main piston, sub-piston moves upward, pressure spring A compression, and main valve stem moves upward; Upper limit spare is used for limit compression spring A and promotes the moving displacement that main piston resets downwards, is used for locating main piston, and the upper piston setting of this structure is simple in structure, reliable.
Further setting more of the present invention: be positioned at position, lower piston upper-end surface on the described auxiliary valve rod sidewall and be outward extended with annular flange flange; Described lower piston moves upward and moves upward through annular flange flange drive auxiliary valve rod; Described pressure spring B one end and sub-piston are conflicted; The other end and annular flange flange are conflicted, and the elasticity coefficient of described pressure spring A is greater than the elasticity coefficient of pressure spring B.
Adopt above-mentioned further setting again, the auxiliary valve rod of this form and lower piston interlock, simple in structure; Pressure spring B through being arranged between annular flange flange and the sub-piston comes respectively auxiliary valve rod to be resetted downwards, main valve stem is upwards resetted, and makes that resetting of auxiliary valve rod, main valve stem is more stable; The elasticity coefficient of pressure spring A makes that like this when lower piston moved upward, upper piston can not be pushed, thereby can only make that auxiliary valve rod moves upward greater than the elasticity coefficient of pressure spring B.
Of the present inventionly further be provided with: between lower piston and upper piston, be provided with in the described valve pocket and be used to limit the move upward lower limit part of displacement of lower piston, being positioned on the described main valve stem sidewall stretches out on the upper piston is useful on the positive stop lug boss that the restriction upper piston moves upward.
Adopt above-mentioned further setting, described lower limit part can be so that auxiliary valve rod after the certain displacement that moves upward, can not continue motion again; Described positive stop lug boss can make that like this motion of main valve stem, auxiliary valve rod is more accurate so that main valve stem after the certain displacement that moves upward, can not continue motion again.
Further setting more of the present invention: described main valve stem includes the last connecting rod that sets gradually, middle connecting rod and lower link from top to bottom; The described connecting rod of going up is fixedly connected with middle connecting rod; Connecting rod is fixedly connected with lower link in described, and described apocenosis passage is arranged on the lower link.
Adopt above-mentioned further setting again, described main valve stem split is provided with, can reduce the circular runout of valve rod.
Description of drawings
Fig. 1 is the structural representation of the specific embodiment of the invention;
Fig. 2 is the plan view of the specific embodiment of the invention;
Fig. 3 is an A-A sectional view among Fig. 2;
Fig. 4 is the right elevation of the specific embodiment of the invention;
Fig. 5 is a B-B sectional view among Fig. 4.
Embodiment
Like Fig. 1,2,3,4, shown in 5, a kind of mixing-preventing valve includes valve body 1, main valve stem 2, auxiliary valve rod 3; Be provided with valve pocket 11 in the valve body 1, valve body 1 is provided with first medium runner 12, second medium runner 13, and described first MEDIA FLOW 12 roads are positioned at second medium runner, 13 tops; Described first medium runner 12 and the 13 vertical settings of second medium runner, described auxiliary valve rod 3 is set in outside the main valve stem 2, described main valve stem 2 and auxiliary valve rod 3 coaxial settings; Main valve stem 2 one ends pass first medium runner 12, second medium runner 13 successively; The other end extends to outside the valve body 1, and auxiliary valve rod 3 one ends extend in first medium runner 12, and the other end is positioned at valve pocket 11; Be provided with connecting passage 14 between first medium runner 12 and second medium runner 13; Be provided with first suction port 15, second suction port 16 and the 3rd suction port 17 with valve pocket 11 conductings on the described valve body 1 from top to bottom successively, be provided with upper piston 4, lower piston 5 in the described valve pocket, described first suction port 15 is positioned at upper piston 4 tops; Described second suction port 16 is between upper piston 4, lower piston 5; Described the 3rd suction port 17 is positioned at lower piston 5 belows, and described main valve stem 2 is linked with upper piston 4, and described auxiliary valve rod 3 is linked with lower piston 5; Also be provided with in the described valve pocket 11 be used for the pressure spring A6 that main valve stem 2 is resetted downwards and be used for auxiliary valve rod 3 reset downwards, with the pressure spring B7 that main valve stem 2 upwards resets, described main valve stem 2 is provided with apocenosis passage 21.
Wherein, Described upper piston 4 includes main piston 41, sub-piston 42, and described main piston 41 lower end surfaces are provided with groove 411, and described sub-piston 42 is arranged in the groove 411; Described main piston 41 is provided with air hole 412; Inwall is conflicted on described pressure spring A6 one end and the valve pocket 11, conflicts in the other end and main piston 41 upper-end surfaces, is provided with in the described valve pocket 11 to be used to limit the last annulus 8 that main piston 41 moves downward displacement.
Be positioned at position, lower piston 5 upper-end surface on described auxiliary valve rod 3 sidewalls and be outward extended with annular flange flange 31; Described lower piston 5 moves upward and moves upward through annular flange flange 31 drive auxiliary valve rods 3; Described pressure spring B7 one end and sub-piston 42 are conflicted; The other end and annular flange flange 31 are conflicted, and the elasticity coefficient of described pressure spring A6 is greater than the elasticity coefficient of pressure spring B7.
Between lower piston 5 and upper piston 4, be provided with in the described valve pocket 11 and be used to limit the move upward following annulus 9 of displacement of lower piston 5, being positioned on described main valve stem 2 sidewalls stretches out on the upper piston 4 is useful on and limits the positive stop lug boss 22 that upper piston 4 moves upward.Described upward annulus 8, following annulus 9 all are fastened in the valve pocket 11.
Described main valve stem 2 includes last connecting rod 23, middle connecting rod 24 and the lower link 25 that sets gradually from top to bottom; The described connecting rod 23 of going up is fixedly connected with middle connecting rod 24; Connecting rod 24 is fixedly connected with lower link 25 in described, and described apocenosis passage 21 is arranged on the lower link 25.
When all sealing between described auxiliary valve rod 3 and first medium runner, 12 bottoms and main valve stem 2 and connecting passage 14 inwalls; Described first medium runner 12 and second medium runner 13 are in the state of blocking; Wherein, Outward extending flange 251 on the lower link 25 of main valve stem 2, main valve stem 2 relies on the seal ring between flange 251 and the connecting passage 14 to form sealing; When in valve pocket 11, pouring pressurized air by second suction port 16; Described upper piston 4 moves upward and drives main valve stem 2 and move upward, and the flange 251 on the lower link 25 and auxiliary valve rod 3 back of conflicting promotes auxiliary valve rods 3 and moves upward and realize the conducting of first medium runner 12 and second medium runner 13; When in valve pocket 11, pouring pressurized air by first suction port 15; Pressurized air is moved downward by the air hole 412 entering promotion sub-pistons 42 of main piston 41; Move downward thereby drive main valve stem 2, seal through seal ring between auxiliary valve rod 3 and first medium runner, 12 bottoms, at this moment the conducting of the apocenosis passage 21 and second medium runner 13; Can carry out independent cleaning to second medium runner 13, first medium runner 12 still can carry out medium transport; When in valve pocket 11, pouring pressurized air by the 3rd suction port 17; Pressurized air promotes lower piston 5 and moves upward; Move upward thereby drive auxiliary valve rod 3, seal through seal ring between the flange 251 of lower link 25 and the connecting passage 14, at this moment the conducting of the apocenosis passage 21 and first medium runner 12; Can carry out independent cleaning to first MEDIA FLOW, 12 roads, second medium runner 13 still can carry out medium transport.
Claims (4)
1. a mixing-preventing valve is characterized in that: include valve body, main valve stem, auxiliary valve rod, be provided with valve pocket in the valve body; Valve body is provided with first medium runner, second medium runner; Described first medium runner is positioned at second medium runner top, and described auxiliary valve rod is set in outside the main valve stem, and main valve stem one end passes first medium runner, second medium runner successively; Auxiliary valve rod one end extends in first medium runner; Be provided with connecting passage between first medium runner and second medium runner, be provided with first suction port, second suction port and the 3rd suction port with the valve pocket conducting on the described valve body from top to bottom successively, be provided with upper piston, lower piston in the described valve pocket; Described first suction port is positioned at the upper piston top; Described second suction port is between upper piston, lower piston, and described the 3rd suction port is positioned at the lower piston below, and described main valve stem and upper piston are linked; Described auxiliary valve rod and lower piston are linked; Also be provided with in the described valve pocket be used for the pressure spring A that main valve stem is resetted downwards and be used for auxiliary valve rod reset downwards, with the pressure spring B that main valve stem upwards resets, described main valve stem is provided with apocenosis passage, realizes blocking of described first medium runner and second medium runner when between auxiliary valve rod and first medium runner bottom and main valve stem and connecting passage inwall, all sealing; Described upper piston moves upward and drives main valve stem and move upward, and moves upward and realizes the conducting of first medium runner and second medium runner thereby promote auxiliary valve rod; Described upper piston move downward drive that main valve stem moves downward and auxiliary valve rod and first medium runner bottom between the conducting of sealing realization apocenosis passage and second medium runner; Described lower piston move upward drive that auxiliary valve rod moves upward and main valve stem and connecting passage inwall between the conducting of sealing realization apocenosis passage and first medium runner; Described upper piston includes main piston, sub-piston; Described main piston lower end surface is provided with groove; Described sub-piston is arranged in the groove, and described main piston is provided with air hole, and inwall is conflicted on described pressure spring A one end and the valve pocket; Conflicting in the other end and main piston upper-end surface, is provided with in the described valve pocket to be used to limit the upper limit spare that main piston moves downward displacement.
2. mixing-preventing valve according to claim 1; It is characterized in that: be positioned at position, lower piston upper-end surface on the described auxiliary valve rod sidewall and be outward extended with annular flange flange; Described lower piston moves upward and moves upward through annular flange flange drive auxiliary valve rod; Described pressure spring B one end and sub-piston are conflicted, and the other end and annular flange flange are conflicted, and the elasticity coefficient of described pressure spring A is greater than the elasticity coefficient of pressure spring B.
3. mixing-preventing valve according to claim 1 and 2; It is characterized in that: between lower piston and upper piston, be provided with in the described valve pocket and be used to limit the move upward lower limit part of displacement of lower piston, being positioned on the described main valve stem sidewall stretches out on the upper piston is useful on the positive stop lug boss that the restriction upper piston moves upward.
4. mixing-preventing valve according to claim 1 and 2; It is characterized in that: described main valve stem includes the last connecting rod that sets gradually, middle connecting rod and lower link from top to bottom; The described connecting rod of going up is fixedly connected with middle connecting rod; Connecting rod is fixedly connected with lower link in described, and described apocenosis passage is arranged on the lower link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102616279A CN102297272B (en) | 2011-09-06 | 2011-09-06 | Mix-proof valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102616279A CN102297272B (en) | 2011-09-06 | 2011-09-06 | Mix-proof valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102297272A CN102297272A (en) | 2011-12-28 |
| CN102297272B true CN102297272B (en) | 2012-11-14 |
Family
ID=45357874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102616279A Active CN102297272B (en) | 2011-09-06 | 2011-09-06 | Mix-proof valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102297272B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672021B (en) * | 2013-12-02 | 2017-04-26 | 东正科技有限公司 | Self-cleaning and sterilizing double-seat valve |
| CN104405927A (en) * | 2014-11-21 | 2015-03-11 | 福建沃隆管阀制造有限公司 | Intelligent anti-mixing valve |
| DK178687B1 (en) * | 2015-11-09 | 2016-11-14 | Kmatic Aps | Multifunctional Sanitary Valve and Method of Operating Such |
| CN106337950B (en) * | 2016-08-17 | 2018-09-28 | 浙江利百加泵阀科技有限公司 | A kind of mixing-preventing valve pulverizing filtering |
| CN107035884A (en) * | 2017-06-07 | 2017-08-11 | 青岛精锐机械制造有限公司 | A kind of cross integrated valve |
| CN110925458B (en) * | 2019-11-19 | 2021-11-16 | 浙江利百加泵阀科技有限公司 | Intelligent control anti-mixing valve |
| CN113339514A (en) * | 2021-05-25 | 2021-09-03 | 宁波凯拓阀门有限公司 | Adjustable direct-injection double-channel valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0002081B1 (en) * | 1977-11-23 | 1981-09-02 | Les Robinets Presto Société Anonyme | Mixing cock with time delayed closing |
| DE19750300A1 (en) * | 1997-11-13 | 1999-06-02 | Alfa Laval Lkm A S | Double seat valve |
| CN201575226U (en) * | 2009-12-29 | 2010-09-08 | 浙江远安流体设备有限公司 | Four-way mix-proof double-seat valve |
| CN202188162U (en) * | 2011-09-06 | 2012-04-11 | 温州奥米流体设备科技有限公司 | Anti-mixing valve |
-
2011
- 2011-09-06 CN CN2011102616279A patent/CN102297272B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0002081B1 (en) * | 1977-11-23 | 1981-09-02 | Les Robinets Presto Société Anonyme | Mixing cock with time delayed closing |
| DE19750300A1 (en) * | 1997-11-13 | 1999-06-02 | Alfa Laval Lkm A S | Double seat valve |
| CN201575226U (en) * | 2009-12-29 | 2010-09-08 | 浙江远安流体设备有限公司 | Four-way mix-proof double-seat valve |
| CN202188162U (en) * | 2011-09-06 | 2012-04-11 | 温州奥米流体设备科技有限公司 | Anti-mixing valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102297272A (en) | 2011-12-28 |
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Owner name: ZHEJIANG AOMI TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: WENZHOU AOMI FLUID EQUIPMENT CO., LTD. Effective date: 20140528 |
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Effective date of registration: 20140528 Address after: 325000, Hai Xia Road, Yang Yang Industrial Zone, North Ao street, Dongtou County, Wenzhou, Zhejiang Patentee after: Zhejiang Aomi Technology Co. Ltd. Address before: 325000 Hai Xia Road, Yang Yang Industrial Area, Dongtou County, Zhejiang, Wenzhou Patentee before: Wenzhou Aomi Fluid Equipment Co., Ltd. |