CN107606194A - The super stream self-closing valve of fluid line - Google Patents
The super stream self-closing valve of fluid line Download PDFInfo
- Publication number
- CN107606194A CN107606194A CN201711096126.3A CN201711096126A CN107606194A CN 107606194 A CN107606194 A CN 107606194A CN 201711096126 A CN201711096126 A CN 201711096126A CN 107606194 A CN107606194 A CN 107606194A
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- Prior art keywords
- valve
- valve body
- valve element
- core assembly
- fluid
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- 239000012530 fluid Substances 0.000 title claims abstract description 54
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 230000004308 accommodation Effects 0.000 claims description 3
- 238000006798 ring closing metathesis reaction Methods 0.000 abstract 1
- 230000007812 deficiency Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
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- Lift Valve (AREA)
Abstract
A kind of super stream self-closing valve of fluid line, when exceeding design rating suitable for the flow of fluid line, fluid line is closed automatically.The self-closing valve includes valve body, core assembly, inlet end cap, return push rod, manual-lock push rod, and the endoporus of valve body is provided with the circular hole that diameter does not wait, and core assembly is installed in the hole of valve body.When the overload of pipeline, fluid increases above the skid resistance of core assembly to the thrust of core assembly, and the maximum gauge position of core assembly slides onto small sircle hole by the big hole of valve body.The flow channel cross-sections of self-closing valve diminish, and the pressure at two ends difference increase of core assembly, valve element closes rapidly valve seat orifice.Valve seat orifice on further valve body is less than 20 ° of conical bore for cone angle, and the pressure of sealing ring closure valve seat orifice is bigger, and self-closing valve is closed tighter.The apparatus structure is simple, safety and stability, control precisely, be swift in response.
Description
Technical field
The invention belongs to safety protection facility, when being related to that its flow exceedes design rating in a kind of fluid line conveying,
The valve closed automatically immediately in the case of not by external impetus.
Background technology
Complicated, automatic closing stream be present in self closing device when its flow overloads in existing fluid line conveying
Amount controlling value is unstable, not precisely, the technological deficiency such as be not closed completely.
The content of the invention
The technical problems to be solved by the invention：For above-mentioned the deficiencies in the prior art, there is provided a kind of super stream of fluid line
Self-closing valve.
The technical solution adopted by the present invention is：A kind of fluid line surpasses stream self-closing valve, and it includes valve body, core assembly, import
End cap, return push rod, manual-lock push rod, it is characterised in that：Valve body is hollow cylinder, and the endoporus of valve body is by the port of export to another
End is followed successively by fluid issuing, valve seat taper hole, upper circular hole, lower circular hole, screw.The cone angle of valve seat taper hole is less than 20 °, upper circular hole
Diameter be less than lower circular hole diameter, inlet end cap be provided with fluid intake installed in valve body screw in, core assembly set
In in the accommodation space formed by the endoporus and entrance point of valve body, return push rod is arranged on valve body, and manual-lock push rod is set
In on inlet end cap.
It includes valve element, sealing ring, compression spring, flow control part, central shaft, elastic ring to the core assembly, and valve element is rank
Trapezoid shaft, three parts before, during and after dividing, the fluid outlet of close valve body is front portion, and the middle part external diameter of valve element is more than front portion with after
The external diameter in portion, sealing ring are arranged at the front portion of valve element, and the endoporus of valve element is counterbore of the aperture in rear end face, and the aperture of counterbore is cone
Hole, central shaft are slidably matched with counterbore, and central shaft is provided with elastic ring, can be with counterbore interference close-fitting, and the rear end of central shaft is with entering
The center of mouth end cap is linked into an integrated entity, and flow control part is arranged between valve element and inlet end cap, and endoporus and the central shaft of flow control part are slided
Dynamic to coordinate, the external diameter of flow control part is more than 0.3-1.5 millimeter of the diameter that the external diameter in the middle part of valve element is less than circular hole on valve body.Pressure bullet
Rear end face in the middle part of the contact valve element of spring one end, the front end face of other end contact flow control part.
Self-closing valve is installed perpendicular to ground, and the fluid outlet of valve body is upper end, another structure of self-closing valve, and its feature exists
In：It includes valve element, sealing ring to the core assembly, and valve element is that multi-diameter shaft divides upper, middle, and lower part, the middle part external diameter of valve element
More than the external diameter of upper and lower part, less than 0.3-1.5 millimeter of the diameter of the upper circular hole of valve body, sealing ring is arranged at the upper of valve element
Portion, the bottom of valve element set several fluid radial passages and fluid axial passage, the bottom of valve element and the fluid of inlet end cap to enter
Mouth is slidably matched.
The return push rod and manual-lock push rod are respectively arranged with sealing ring.
The inlet end cap is provided with sealing gasket with valve body junction.
Brief description of the drawings：
Fig. 1 is the structure cut-away view of one embodiment of the invention.
Fig. 2 is the structure cut-away view of another embodiment of the present invention.
Embodiment：
It is a kind of super stream self-closing valve of fluid line referring to Fig. 1 and Fig. 2 present invention, it includes valve body 1, core assembly, inlet end cap
2nd, return push rod 3, manual-lock push rod 4, it is characterised in that valve body 1 is hollow cylinder, and the endoporus of valve body 1 is by the port of export to another
End is followed successively by fluid issuing 11, valve seat taper hole 12,13 times circular holes of upper circular hole 14, screw 15, and the cone angle of valve seat taper hole is less than
20 °, the diameter of upper circular hole 13 is less than the diameter of lower circular hole 14, and inlet end cap 2 sets fluid intake 21 installed in the screw of valve body 1
In 15, core assembly is arranged in the accommodation space formed by the endoporus and inlet end cap 2 of valve body 1, and return push rod 3 is arranged at valve
On body 1, manual-lock push rod 4 is arranged on inlet end cap 2.Return push rod 3 is provided with sealing ring 31, and manual-lock push rod 4 is set
It is equipped with sealing ring 41.Inlet end cap 2 is provided with sealing gasket 22 with the junction of valve body 1.
Be one embodiment of the invention referring to Fig. 1, above-mentioned core assembly it include valve element 51, sealing ring 52, compression spring 53,
Flow control part 54, central shaft 55, elastic ring 56, valve element 51 are stairstepping axle, three parts before, during and after point, close to the fluid of valve body 1
11 ends are exported as front portion, the external diameter of middle part 5101 of valve element 51 is more than the external diameter at front portion 5102 and rear portion 5103, and sealing ring 52 is set
In on the front portion 5102 of valve element 51, the endoporus of valve element 51 is aperture in the counterbore 5104 of rear end face, and the aperture of counterbore 5104 is taper hole,
Central shaft 55 is slidably matched with counterbore 5104, and central shaft 55 is provided with elastic ring 56 can be with the interference close-fitting of counterbore 5104, central shaft
55 rear end and the center of inlet end cap 2 are linked into an integrated entity, and flow control part 54 is arranged between valve element 51 and inlet end cap 2, flow control
The endoporus of part 54 is slidably matched with central shaft 55, and the external diameter that the external diameter of flow control part 54 is more than the middle part 5101 of valve element 51 is less than valve body
0.3-1.5 millimeter of the diameter of circular hole 13 on 1.The rear end face at the middle part 5101 of one end contact valve element 51 of compression spring 53, the other end
The front end face of contact flow control part 54.Its course of work：When pipeline normally conveys, flow control part 54 is arranged under valve body 1 fluid
Self-closing valve is opening state in circular hole 14, and fluid flows into from fluid intake 21, is flowed out through core assembly by fluid issuing 11.Work as fluid
During the overload of pipeline, the fluid of the inflow of fluid intake 21（Liquid or gas）The thrust of flow control part 54 is increased, and exceeded
Compression spring 53 slides to its active force, the forward end of flow control part 54, now due to elastic ring 56 and the interference close-fitting of counterbore 5104
Resistance causes the transfixion of valve element 51.Flow control part 54 continues forward slip, and the upper circular hole of valve body is slipped into from the lower circular hole 14 of valve body
13, because the diameter of the upper circular hole 13 of valve body is less than the diameter of lower circular hole 14, the crest clearance of upper circular hole 13 and flow control part 54 is
0.3-1.5 millimeter, the transfer passage section of fluid diminishes, and the front/rear end pressure differential of flow control part 54 increases rapidly, and it is to valve element 51
Active force increase and more than the resistance of elastic ring 56 and the interference close-fitting of counterbore 5104, the forward slip of valve element 51, elastic ring 56 with
Counterbore 5104 disengages, and valve element 51 accelerates forward slip, and sealing ring 52 blocks rapidly valve seat taper hole 12.Further as valve seat taper hole
12 cone angle is less than 20 °, and it is tighter that sealing ring 52 blocks valve seat orifice 12.
It is another embodiment of the present invention referring to Fig. 2：Self-closing valve is installed perpendicular to ground, and the fluid issuing 11 of valve body 1 is upper
End, it includes valve element 61, sealing ring 62 to above-mentioned core assembly, and valve element 61 is that multi-diameter shaft divides upper, middle, and lower part, valve element 61
The external diameter of middle part 6101 is more than the external diameter of upper and lower part, less than 0.3-1.5 millimeter of the diameter of the upper circular hole 13 of valve body 1, sealing ring
62 are arranged at the top of valve element 61, and the bottom of valve element 61 sets several fluid radial passages 6102 and fluid axial passage 6103,
The bottom of valve element 61 and the fluid intake 21 of inlet end cap 2 are slidably matched.Its course of work:Fluid when pipeline normally conveys,
It is opening state that valve element middle part 6101, which is arranged at self-closing valve in the lower circular hole 14 of valve body 1, and fluid is flowed into through valve element from fluid intake 21
61 fluid passage 6103, radial passage 6102 are flowed out by fluid issuing 11.When the overload of fluid line, fluid intake
21 fluids flowed into are to valve element 61（Valve element be light material such as：Aluminium alloy, nylon etc. are made）Thrust increase, and more than its from
Weight resistance, the upward sliding of valve element 61, upper circular hole 13 is slipped into valve element middle part 6101 from the lower circular hole 14 of valve body, due to the upper circle of valve body
The diameter in hole 13 is less than the diameter of lower circular hole 14, and 6101 crest clearance is 0.3-1.5 millimeter in the middle part of upper circular hole 13 and valve element,
The transfer passage section of fluid becomes small valve core rapid increase of forefront pressure difference about 61, and the acceleration upward sliding of valve element 61 to seal
Closure valve seat taper hole 12 closes valve to circle 62 rapidly.
The super stream self-closing valve of fluid line can promote return push rod 3 to make core assembly return after overload eliminates.Also may be used
Promote the manual-lock valve of manual-lock push rod 4.
Claims (5)
1. a kind of super stream self-closing valve of fluid line, it includes valve body（1）, core assembly, inlet end cap（2）, return push rod（3）、
Manual-lock push rod（4）, it is characterised in that：Valve body（1）For hollow cylinder, valve body（1）Endoporus by the port of export to the other end according to
Secondary is fluid issuing（11）, valve seat taper hole（12）, upper circular hole（13）, lower circular hole（14）, screw（15）, valve seat taper hole（12）Circle
Coning angle is less than 20 °, upper circular hole（13）Diameter be less than lower circular hole（14）Diameter, inlet end cap（2）It is provided with fluid intake
（21）Screw installed in valve body (1)（15）Interior, core assembly is arranged at by valve body（1）Endoporus and inlet end cap（2）Formed
Accommodation space in, return push rod（3）It is arranged at valve body（1）On, manual-lock push rod（4）It is arranged at inlet end cap（2）On.
2. the super stream self-closing valve of fluid line as claimed in claim 1, it is characterised in that：The core assembly it include valve element
（51）, sealing ring（52）, compression spring（53）, flow control part（54）, central shaft（55）, elastic ring（56）, valve element（51）For ladder
Three parts before, during and after shape axle point, close to valve body（1）Fluid issuing（11）Hold as front portion, valve element（51）Middle part (5101) outside
Footpath is more than front portion（5102）And rear portion（5103）External diameter, sealing ring（52）It is arranged at valve element（51）Front portion（5102）On, valve
Core（51）Endoporus for aperture rear end face counterbore（5104）, counterbore（5104）Aperture is taper hole, central shaft（55）With counterbore
（5104）It is slidably matched, central shaft（55）It is provided with elastic ring（56）Can be with counterbore（5104）Interference close-fitting, central shaft（55）'s
Rear end and inlet end cap（2）Center link into an integrated entity, flow control part（54）It is arranged at valve element（51）With inlet end cap（2）Between,
Flow control part（54）Endoporus and central shaft（55）It is slidably matched, flow control part（54）External diameter be more than valve element（51）Middle part（5101）
External diameter be less than valve body（1）Upper circular hole（13）0.3-1.5 millimeter of diameter, compression spring（53）One end contact valve element（51）'s
Middle part（5101）Rear end face, other end contact flow control part（54）Front end face.
3. the super stream self-closing valve of fluid line as claimed in claim 1 is characterized in that：When self-closing valve is installed perpendicular to ground, valve body
（1）Fluid issuing（11）Hold as upper end, the core assembly it include valve element（61）, sealing ring（62）, valve element（61）For rank
Terraced axle divides upper, middle, and lower part, valve element（61）Middle part（6101）External diameter is more than the external diameter of upper and lower part, less than valve body（1）
Upper circular hole（13）0.3-1.5 millimeter of diameter, sealing ring（62）It is arranged at valve element（61）Top, valve element（61）Bottom set
Put several fluid radial passages（6102）With fluid axial passage（6103）, valve element（61）Bottom and inlet end cap（2）Stream
Body entrance（21）It is slidably matched.
4. the super stream self-closing valve of fluid line as claimed in claim 1, it is characterised in that：Return push rod（3）It is provided with sealing ring
（31）, manual-lock push rod（4）It is provided with sealing ring（41）.
5. the super stream self-closing valve of fluid line as claimed in claim 1, it is characterised in that：Inlet end cap（2）With valve body（1）Junction
It is provided with sealing gasket（22）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711096126.3A CN107606194A (en) | 2017-11-09 | 2017-11-09 | The super stream self-closing valve of fluid line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711096126.3A CN107606194A (en) | 2017-11-09 | 2017-11-09 | The super stream self-closing valve of fluid line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107606194A true CN107606194A (en) | 2018-01-19 |
Family
ID=61086209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711096126.3A Pending CN107606194A (en) | 2017-11-09 | 2017-11-09 | The super stream self-closing valve of fluid line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107606194A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186524A (en) * | 2019-05-16 | 2019-08-30 | 金卡智能集团股份有限公司 | A kind of fluid ultrasonic metering system and method |
| CN111544736A (en) * | 2019-07-27 | 2020-08-18 | 华中科技大学同济医学院附属协和医院 | Oxygen pillow pipeline three-way connecting valve and fuzzy control method thereof |
| CN112576792A (en) * | 2020-12-18 | 2021-03-30 | 烟台大学 | Overflow self-closing valve |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB767346A (en) * | 1953-09-28 | 1957-01-30 | I B I Invenzioni Brevetti Ind | Improvements relating to safety valves |
| CN2653255Y (en) * | 2003-09-30 | 2004-11-03 | 李财荣 | Solar water heater safety valve |
| JP2006065586A (en) * | 2004-08-26 | 2006-03-09 | Toyota Motor Corp | Pressure reducing valve |
| CN103090021A (en) * | 2013-02-25 | 2013-05-08 | 武汉元丰汽车电控系统有限公司 | Linear electromagnetic normally-closed valve of automobile braking system |
| CN104455594A (en) * | 2014-12-08 | 2015-03-25 | 李国栋 | Automatic pipeline leakage protection device |
| CN106989191A (en) * | 2016-12-16 | 2017-07-28 | 李国栋 | Fluid line overload automatic safety device |
| WO2017139925A1 (en) * | 2016-02-17 | 2017-08-24 | Active Tools International (Hk) Ltd. | Safety valve |
| CN207454792U (en) * | 2017-11-09 | 2018-06-05 | 李国栋 | Fluid line surpasses stream self-closing valve |
-
2017
- 2017-11-09 CN CN201711096126.3A patent/CN107606194A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB767346A (en) * | 1953-09-28 | 1957-01-30 | I B I Invenzioni Brevetti Ind | Improvements relating to safety valves |
| CN2653255Y (en) * | 2003-09-30 | 2004-11-03 | 李财荣 | Solar water heater safety valve |
| JP2006065586A (en) * | 2004-08-26 | 2006-03-09 | Toyota Motor Corp | Pressure reducing valve |
| CN103090021A (en) * | 2013-02-25 | 2013-05-08 | 武汉元丰汽车电控系统有限公司 | Linear electromagnetic normally-closed valve of automobile braking system |
| CN104455594A (en) * | 2014-12-08 | 2015-03-25 | 李国栋 | Automatic pipeline leakage protection device |
| WO2017139925A1 (en) * | 2016-02-17 | 2017-08-24 | Active Tools International (Hk) Ltd. | Safety valve |
| CN106989191A (en) * | 2016-12-16 | 2017-07-28 | 李国栋 | Fluid line overload automatic safety device |
| CN207454792U (en) * | 2017-11-09 | 2018-06-05 | 李国栋 | Fluid line surpasses stream self-closing valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186524A (en) * | 2019-05-16 | 2019-08-30 | 金卡智能集团股份有限公司 | A kind of fluid ultrasonic metering system and method |
| CN111544736A (en) * | 2019-07-27 | 2020-08-18 | 华中科技大学同济医学院附属协和医院 | Oxygen pillow pipeline three-way connecting valve and fuzzy control method thereof |
| CN112576792A (en) * | 2020-12-18 | 2021-03-30 | 烟台大学 | Overflow self-closing valve |
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