CN104633192A - High-sensitivity overpressure protective device - Google Patents
High-sensitivity overpressure protective device Download PDFInfo
- Publication number
- CN104633192A CN104633192A CN201410750451.7A CN201410750451A CN104633192A CN 104633192 A CN104633192 A CN 104633192A CN 201410750451 A CN201410750451 A CN 201410750451A CN 104633192 A CN104633192 A CN 104633192A
- Authority
- CN
- China
- Prior art keywords
- guide rod
- spring
- protective device
- column
- highly sensitive
- 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.)
- Granted
Links
- 230000001681 protective effect Effects 0.000 title claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 239000000835 fiber Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 description 4
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 210000000981 epithelium Anatomy 0.000 description 2
- 229910001004 magnetic alloy Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The invention relates to a high-sensitivity overpressure protective device, and belongs to the technical field of valves. The high-sensitivity overpressure protective device comprises a support, a guide rod, a spring, a valve clack and a limiting block, wherein the support, the guide rod, the spring, the valve clack and the limiting block are installed in a valve body. The support comprises a tube body, and a plurality of supporting plates are fixed to the outer wall of the tube body and fixedly connected with the inner wall of the valve body. The guide rod is movably installed in the tube body of the support, a large cylinder section is arranged at the upper end of the guide rod, a small cylinder section is arranged at the lower end of the guide rod, the large cylinder section of the guide rod is matched with the inner wall of the tube body, and the lower end of the small cylinder section downwards extends to the exterior of the tube body. The spring is arranged on the small cylinder section of the guide rod in a sleeving mode, the upper end of the spring abuts against the lower end face of the large cylinder section, and the lower end of the spring abuts against a step face of the inner wall of the tube body. The valve clack is fixed to the portion, extending out of the tube body, of the small cylinder section of the guide rod. The limiting block is fixed to an opening in the upper end of the tube body. A sealing base matched with the valve clack is installed at the outlet end of the valve body. The high-sensitivity overpressure protective device is simple in structure, convenient to assemble and maintain, low in cost, high in reliability, long in service life and small in size.
Description
Technical field
The present invention relates to a kind of highly sensitive overvoltage protective device, belong to the technical field of valve.
Background technique
A kind of secure gas self-closing valve is had in known product, it comprises upper cover and valve body, the two ends, left and right of valve body arrange inlet end and outlet side respectively, valve body arranges vent near side, outlet side, the middle part of valve body arranges valve port, the top of valve port is upper cavity, the bottom of valve port is lower chamber, spacer is provided with in the upper cavity of valve body, the middle part of spacer is equipped with aluminium core bar, the upper end of aluminium core bar is provided with permanent magnetic alloy, the position be positioned on the downside of spacer at aluminium core bar is provided with rubber sealing block, the top of spacer is provided with epithelium, the middle part of epithelium is provided with core bar, one end of core bar passes from upper cover, and be provided with handle at the position that core bar passes.
There is following defect in this secure gas self-closing valve:
1. complex structure, reliability is low.
2. product diaphragm structure, diaphragm is fragile.Permanent magnetic alloy causes product failure.
3. volume is bigger than normal, and assembling manufacturing cost is high.
Summary of the invention
The object of this invention is to provide the highly sensitive overvoltage protective device that a kind of structure is simple, reliability is high, the life-span is long.
For achieving the above object, the technical solution adopted in the present invention is:
A kind of highly sensitive overvoltage protective device, comprises the support be arranged in valve body, guide rod, spring, flap, limiting stopper;
Support comprises body outer wall being fixed with several piece dunnage, and dunnage is fixedly connected with valve interior wall;
Guide rod is movably arranged in the body of support, and the upper end of guide rod is great circle shell of column, lower end is roundlet shell of column, and the great circle shell of column of guide rod matches with inboard wall of tube body, and the lower end of roundlet shell of column extends downward outside body;
Spring is nested with on the roundlet shell of column of guide rod, and spring upper end withstands on the lower end surface of great circle shell of column, and lower spring end withstands on the step surface of inboard wall of tube body;
Flap is fixed on the roundlet shell of column of the guide rod extended to outside body;
Limiting stopper is fixed in the upper end open of body, and limiting stopper is spacing to guide rod axial restraint;
The outlet end of valve body is provided with the sealing seat coordinated with flap.
As the further setting of such scheme, described support is triangle polyester fibre supporting structure, and dunnage is provided with 3 altogether and is uniformly distributed.
The medium position outer wall of the roundlet shell of column of described guide rod offers circular groove.Circular groove does not contact with spring, while this structure ensure that guide rod and spring contact length, decreases the interference of guide rod to spring, ensures the reliability of spring open and close.
The great circle shell of column upper-end surface of described guide rod offers groove one, while ensureing product orientation, alleviates the weight of guide rod, is conducive to the sensitivity ensureing guide rod.
Offer groove two in the middle of the upper-end surface of described flap, groove two matches with body bottom, and the upper-end surface peripheral edge of flap, along upwards extending, forms a circle and extends out formula annular slab.
Described body bottom is set to convex inclined plane structure, and this convex inclined plane structure matches with groove two, by reducing the area of active force, increasing the seal pressure of flap, ensure that stability and the sealingly secure of the sealing of product.
Described limiting stopper adopts double-deck interior cylinder table stage structure (namely the upper-end surface of limiting stopper from top to bottom offers great circle post holes, small cylindrical opening successively).
Described spring is two section type structure spring.Two section type structure spring has highly sensitive advantage, ensure that restoring force when the present invention closes.
A kind of highly sensitive overvoltage protective device of the present invention, has following beneficial effect:
1. the present invention is by simplifying protection mechanism, realizes product and can automatically close when overcurrent, can automatically open when flow is normal.
2. sealing configuration between flap and sealing seat, ensure that the safety reliability of sealing, reaches zero leakage.
3. the sectional design of spring is sensitive to the induction of product pressure change.
4. the cooperating structure of support and guide rod, solves the guidance quality problem of product.
In a word, a kind of highly sensitive overvoltage protective device of the present invention, structure is simple, assembling and easy to maintenance, cost is low, reliability is high, the life-span is long, volume is little.
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of valve body in Fig. 1;
Fig. 3 is the perspective view of Fig. 1 medium-height trestle;
Fig. 4 is the structural representation of Fig. 1 medium-height trestle;
Fig. 5 is the structural representation of guide rod in Fig. 1;
Fig. 6 is the structural representation of flap in Fig. 1;
Fig. 7 is the perspective view of flap in Fig. 1;
Fig. 8 is the structural representation of limiting stopper in Fig. 1;
Fig. 9 is the structural representation of Fig. 1 medi-spring.
Embodiment
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, a kind of highly sensitive overvoltage protective device of the present invention, comprises the support 7 be arranged in valve body 1, guide rod 3, spring 4, flap 5, limiting stopper 2.
Support 7 comprises the body 72 outer wall being fixed with several piece dunnage 71, and dunnage 71 is fixedly connected with valve body 1 inwall.In the present embodiment, support 7 is triangle polyester fibre supporting structure, and dunnage 71 is provided with 3 altogether and is uniformly distributed.For improving performance further, form integral structure between 3 dunnages 71 of the present invention, and the junction surface between adjacent shore plates 71 is arc shaped surface.
Guide rod 3 is movably arranged in the body 72 of support 7, and the upper end of guide rod 3 is great circle shell of column 31, lower end is roundlet shell of column 32, and the great circle shell of column 31 of guide rod 3 matches with body 72 inwall, and the lower end of roundlet shell of column 32 extends downward outside body 72.Invention increases the great circle shell of column 31 of guide rod 3 and the contact length of body 72, add stability and the guidance quality of product.Meanwhile, for improving sensitivity, offering groove 1 in great circle shell of column 31 upper-end surface of guide rod 3, while ensureing product orientation, alleviating the weight of guide rod 3, be conducive to the sensitivity ensureing guide rod 3.
Spring 4 cooperation is nested with on roundlet shell of column 32 outer wall of guide rod 3, and spring 4 upper end withstands on the lower end surface of great circle shell of column 31, and spring 4 lower end withstands on the step surface of body 72 inwall.In the present embodiment, body 72 inwall lower end is provided with two step surfaces, and spring 4 lower end withstands on and is positioned on the step surface of bottom.For improving performance further, two section type structure spring selected by spring 4.Two section type structure spring has highly sensitive advantage, ensure that restoring force when the present invention closes.
For further improving performance, in the present invention, the medium position outer wall of the roundlet shell of column 32 of guide rod 3 offers circular groove 34.Circular groove 34 does not contact with spring 4, and this structure decreases the interference of guide rod 3 pairs of springs 4 while ensure that guide rod 3 and spring 4 contact length, ensures the reliability of spring 4 open and close.
Flap 5 is fixed on the roundlet shell of column 32 of the guide rod 3 extended to outside body 72.In the present embodiment, offer groove 2 51 in the middle of the upper-end surface of flap 5, groove 2 51 matches with body 72 bottom, and the upper-end surface peripheral edge of flap 5, along upwards extending, forms a circle and extends out formula annular slab 52.As preferably, body 72 bottom of the present invention is set to convex inclined plane structure 73, and this convex inclined plane structure 73 matches with groove 2 51, by reducing the area of active force, increasing the seal pressure of flap 5, ensure that stability and the sealingly secure of the sealing of product.
Limiting stopper 2 is fixed in the upper end open of body 72.In the present embodiment, limiting stopper 2 adopts double-deck interior cylinder table stage structure (namely the upper-end surface of limiting stopper 2 from top to bottom offers great circle post holes 21, small cylindrical opening 22 successively).Meanwhile, in the present embodiment, limiting stopper 2 selects nonmetallic material to make.When this limiting stopper 2 assembles with the body 72 of support 7, have easy for installation, limiting stopper 2 can have larger amount of deformation, can ensure to be connected when installing with body 72 compact.
The outlet end of valve body 1 is provided with the sealing seat 6 coordinated with flap 5.In the present embodiment, sealing seat 6 adopts anti-R structure, and when carrying out fitted seal with the formula that the extends out annular slab 52 of flap 5, the area of contact between flap 5 and sealing seat 6 is large.
Working principle of the present invention is as follows:
When pipeline pressure rises, ducted pressure acts on flap 5, and when the keying that the power acting on flap 5 is greater than spring 4 requires, pipeline pressure drives guide rod 3 to travel forward to the thrust of flap 5, flap 5 contacts with the anti-R sealing surface of sealing seat 6, blocks the gas circulated in pipeline.When the power that pipeline acts on flap 5 is less than the thrust of spring 4 for guide rod 3, the thrust that spring 4 produces makes flap 5 rise, and flap 5 departs from the sealing surface of sealing seat 6, the gas flow circulated in pipeline.When product flow is excessive, this valve can be closed again.Therefore pipe end can not damage because the flow of product is excessive.
Above-described embodiment only illustrates inventive concept of the present invention for explaining, but not the restriction to rights protection of the present invention, all changes utilizing this design the present invention to be carried out to unsubstantiality, all should fall into protection scope of the present invention.
Claims (8)
1. a highly sensitive overvoltage protective device, is characterized in that: comprise the support be arranged in valve body, guide rod, spring, flap, limiting stopper;
Support comprises body outer wall being fixed with several piece dunnage, and dunnage is fixedly connected with valve interior wall;
Guide rod is movably arranged in the body of support, and the upper end of guide rod is great circle shell of column, lower end is roundlet shell of column, and the great circle shell of column of guide rod matches with inboard wall of tube body, and the lower end of roundlet shell of column extends downward outside body;
Spring is nested with on the roundlet shell of column of guide rod, and spring upper end withstands on the lower end surface of great circle shell of column, and lower spring end withstands on the step surface of inboard wall of tube body;
Flap is fixed on the roundlet shell of column of the guide rod extended to outside body;
Limiting stopper is fixed in the upper end open of body;
The outlet end of valve body is provided with the sealing seat coordinated with flap.
2. a kind of highly sensitive overvoltage protective device as claimed in claim 1, is characterized in that: described support is triangle polyester fibre supporting structure, and dunnage is provided with 3 altogether and is uniformly distributed.
3. a kind of highly sensitive overvoltage protective device as claimed in claim 1, is characterized in that: the medium position outer wall of the roundlet shell of column of described guide rod offers circular groove.
4. the highly sensitive overvoltage protective device of the one as described in claim 1 or 3, is characterized in that: the great circle shell of column upper-end surface of described guide rod offers groove one.
5. a kind of highly sensitive overvoltage protective device as claimed in claim 1; it is characterized in that: in the middle of the upper-end surface of described flap, offer groove two; groove two matches with body bottom, and the upper-end surface peripheral edge of flap, along upwards extending, forms a circle and extends out formula annular slab.
6. a kind of highly sensitive overvoltage protective device as claimed in claim 5, it is characterized in that: described body bottom is set to convex inclined plane structure, this convex inclined plane structure matches with groove two.
7. a kind of highly sensitive overvoltage protective device as claimed in claim 1, is characterized in that: described limiting stopper adopts double-deck interior cylinder table stage structure.
8. a kind of highly sensitive overvoltage protective device as claimed in claim 1, is characterized in that: described spring is two section type structure spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410750451.7A CN104633192B (en) | 2014-12-09 | 2014-12-09 | A kind of highly sensitive over-pressure safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410750451.7A CN104633192B (en) | 2014-12-09 | 2014-12-09 | A kind of highly sensitive over-pressure safety device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104633192A true CN104633192A (en) | 2015-05-20 |
| CN104633192B CN104633192B (en) | 2017-06-30 |
Family
ID=53212262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410750451.7A Active CN104633192B (en) | 2014-12-09 | 2014-12-09 | A kind of highly sensitive over-pressure safety device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104633192B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106352122A (en) * | 2016-10-25 | 2017-01-25 | 浙江盾安智控科技股份有限公司 | Overflow high-temperature cut-off valve |
| CN106439144A (en) * | 2016-11-22 | 2017-02-22 | 厦门唯美创阀门科技有限责任公司 | Protector and safety valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09203473A (en) * | 1995-11-20 | 1997-08-05 | Inax Corp | Check valve device |
| CN2299971Y (en) * | 1997-05-15 | 1998-12-09 | 冯金生 | Overflow gas safety automatic cut-off valve |
| CN2352785Y (en) * | 1998-05-29 | 1999-12-08 | 蔡肇训 | Excess-flow gas valve for safety |
| KR20050080016A (en) * | 2005-07-01 | 2005-08-11 | 박실상 | A safety valve for supply of gas |
| CN101324284A (en) * | 2007-05-07 | 2008-12-17 | 沙厄-丹福丝股份有限公司 | Low rise rate direct acting relief valve |
| CN203477483U (en) * | 2013-09-02 | 2014-03-12 | 上海开维喜阀门集团有限公司 | High-pressure axial flow check valve |
-
2014
- 2014-12-09 CN CN201410750451.7A patent/CN104633192B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09203473A (en) * | 1995-11-20 | 1997-08-05 | Inax Corp | Check valve device |
| CN2299971Y (en) * | 1997-05-15 | 1998-12-09 | 冯金生 | Overflow gas safety automatic cut-off valve |
| CN2352785Y (en) * | 1998-05-29 | 1999-12-08 | 蔡肇训 | Excess-flow gas valve for safety |
| KR20050080016A (en) * | 2005-07-01 | 2005-08-11 | 박실상 | A safety valve for supply of gas |
| CN101324284A (en) * | 2007-05-07 | 2008-12-17 | 沙厄-丹福丝股份有限公司 | Low rise rate direct acting relief valve |
| CN203477483U (en) * | 2013-09-02 | 2014-03-12 | 上海开维喜阀门集团有限公司 | High-pressure axial flow check valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106352122A (en) * | 2016-10-25 | 2017-01-25 | 浙江盾安智控科技股份有限公司 | Overflow high-temperature cut-off valve |
| CN106352122B (en) * | 2016-10-25 | 2019-02-15 | 浙江盾安智控科技股份有限公司 | A kind of overcurrent high temperature stop valve |
| CN106439144A (en) * | 2016-11-22 | 2017-02-22 | 厦门唯美创阀门科技有限责任公司 | Protector and safety valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104633192B (en) | 2017-06-30 |
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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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 311800 Zhejiang city in Shaoxing Province town of Zhuji city shop industrial zone Zhejiang Dunan Valve Co. Ltd. Patentee after: ZHEJIANG DUNAN VALVE Co.,Ltd. Address before: 311800 Zhejiang city in Shaoxing Province town of Zhuji city shop industrial zone Zhejiang Dunan Valve Co. Ltd. Patentee before: ZHEJIANG DUNAN VALVE Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 311800, Shaoxing City, Zhejiang province Zhuji Town Industrial Zone Zhejiang shield Valve Co., Ltd. Patentee after: Zhejiang deai Intelligent Control Technology Co.,Ltd. Address before: 311800, Shaoxing City, Zhejiang province Zhuji Town Industrial Zone Zhejiang shield Valve Co., Ltd. Patentee before: ZHEJIANG DUNAN VALVE Co.,Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A high sensitive overvoltage protection device Effective date of registration: 20211220 Granted publication date: 20170630 Pledgee: Diankou sub branch of Zhejiang Zhuji Rural Commercial Bank Co.,Ltd. Pledgor: Zhejiang deai Intelligent Control Technology Co.,Ltd. Registration number: Y2021980015397 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230724 Granted publication date: 20170630 Pledgee: Diankou sub branch of Zhejiang Zhuji Rural Commercial Bank Co.,Ltd. Pledgor: Zhejiang deai Intelligent Control Technology Co.,Ltd. Registration number: Y2021980015397 |