CN201190823Y - Pressure reducing valve with improved structure - Google Patents
Pressure reducing valve with improved structure Download PDFInfo
- Publication number
- CN201190823Y CN201190823Y CNU2008200845154U CN200820084515U CN201190823Y CN 201190823 Y CN201190823 Y CN 201190823Y CN U2008200845154 U CNU2008200845154 U CN U2008200845154U CN 200820084515 U CN200820084515 U CN 200820084515U CN 201190823 Y CN201190823 Y CN 201190823Y
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- valve
- pressure
- valve pin
- core assembly
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Abstract
The utility model provides a pressure reducing valve with a modified structure, belonging to the valve technical field, for resolving the technical problems of the prior art such as complex installment and maintenance, bad seal property and short service life, which comprise a valve body provided with a water inlet and a water outlet, wherein a valve pin base is provided in the valve body, a valve pin component is provided in the valve pin base, a water channel is provided between the valve pin component and the valve pin base for changing flux when the valve pin component moves in the valve pin base, the valve body is provided with a pressure adjusting port above the valve pin base, the pressure adjusting port contains a pressure adjusting element for the valve pin component, the valve pin component is provided with a resistance spring, and a first seal ring is provided between the valve pin component and the pressure adjusting port and is sheathed on the valve pin component. The pressure reducing valve arranges a seal ring to replace a membrane to realize seal effect, thereby improving seal effect, service life and pressure stability. The bottom of the valve body is provided with a bottom cover detachably to obtain simple exchange and installment of the elements.
Description
Technical field
The utility model belongs to valve technology field, relates to the decompressor on a kind of supply channel, particularly a kind of structure improved reduction valve.
Background technique
Reduction valve is the situation that downstream water refluxes to occur in order to prevent when water transport pipeline anomaly, the reduction of upstream water intake pressure occur or cuts off the water, therefore press when too high when downstream water, valve opening is dwindled automatically, reduce water outlet pressure, by regulating the water outlet pressure that water intake pressure is reduced to a certain needs, so that certain into hydrodynamic pressure of water oral-lateral that is lower than to be provided.Reduction valve is installed on the pipeline of pilot fluid, no matter reduction valve water intake side liquid pressure height, it can remain on water outlet side liquid pressure the setup pressure value of requirement.From hydromechanical viewpoint, reduction valve is a throttle element that local resistance can change, and promptly by changing orifice size, flow velocity and kinetic energy is changed, and causes the different pressure losses, thereby reaches the purpose of decompression.
For example, the disclosed a kind of water pressure reducing valve of Chinese patent literature [publication number: CN1967031], comprise component such as valve body, valve core rod, pressure regulating cover, epithelium, wherein valve core rod is loaded in the valve body, pressure regulating cover is fixed on the rubber-like epithelium on the valve body, when hydraulic pressure made progress the roof pressure valve core rod, epithelium can move up and down with valve core rod within the specific limits along axis, answer valve core rod and seal action that epithelium plays during this reduction valve work.But the reduction valve of this structure as can be seen, epithelium is through after using for a long time, and its elastic performance weakens and the sealability variation, has influence on the proper functioning of reduction valve.In addition because the reduction valve of this structure is installed and can only carry out dismounting from the outlet on top when changing the valve core rod assembly, so inner body will be changed and install when damaging all very inconvenient again.Also there is similar problem in existing other technologies scheme.
Summary of the invention
The purpose of this utility model is at existing existing the problems referred to above, and a kind of installation and maintenance convenience, good seal performance, long service life, structure improved reduction valve that effect of easing stress is good are provided.
The purpose of this utility model can realize by following technical proposal: a kind of structure improved reduction valve, comprise valve body with water intake and water outlet, in valve body, be provided with valve core case, mangetic core assembly is housed in valve core case, be provided with the water channel of crossing that when mangetic core assembly is mobile in valve core case, can change flux between mangetic core assembly and the valve core case, having the pressure modulating opening that is positioned at above the valve core case on the valve body, in pressure modulating opening, be equipped with and act on being used on the mangetic core assembly and regulate the pressure regulation assembly of pressure, it is characterized in that, described mangetic core assembly is provided with the resistance spring that makes mangetic core assembly have the trend of moving upward, and is provided with the seal ring one that is enclosed within on the mangetic core assembly between mangetic core assembly and pressure modulating opening.
This reduction valve is a kind of device that is used for water intake pressure is reduced to the water outlet pressure of a certain needs, and wherein mangetic core assembly is installed in the valve core case, and convenient whole mangetic core assembly moves up and down like this.The pressure regulation assembly acts on and mangetic core assembly is moved downward and can be by the size of the required pressure of pressure regulation assembly can regulate.The flux magnitude of crossing water channel is the interaction by pressure adjusting spring in the adjusting pressure assembly and resistance spring, thereby the gap that defines between mangetic core assembly and the valve core case reaches the purpose of regulating hydraulic pressure.Be in the seal ring one between mangetic core assembly and the pressure modulating opening, improved the sealability and the working life of reduction valve, increased the stability of pressure.
During work, water is to flow in the valve body from water intake to flow out from water outlet through water channel then again, when adjusting pressure regulation assembly acts on mangetic core assembly is moved downward, and the resistance spring action makes it have the trend of moving upward on mangetic core assembly, wherein the part of the current roof pressure mangetic core assembly that makes progress moves upward gradually it to rise, the gap of crossing water channel that is in like this between mangetic core assembly and the valve core case just diminishes, be resisted against on the valve core case until mangetic core assembly, thereby make the pressure of water outlet reach predefined pressure.
In above-mentioned structure improved reduction valve, described valve body bottom has the through hole that communicates with valve inner, in the through hole bottom is installed, and above-mentioned resistance spring is between mangetic core assembly and bottom, one end of resistance spring acts on the mangetic core assembly, and the other end acts on the bottom.Wherein bottom is dismountable, and is all more convenient in the time of need changing again and install when inner body damages like this.
In above-mentioned structure improved reduction valve, described mangetic core assembly comprises valve core rod and the valve core head that links to each other with valve core rod, is provided with rubber sheet gasket between valve core rod and valve core head.Rubber sheet gasket plays the effect of sealing on the one hand, plays the vibrations that the trimmer valve core print is produced in addition when valve core head is resisted against on the valve core case.
In above-mentioned structure improved reduction valve, be with filter screen on the described valve core rod.Overcome like this because of impurity enters the deficiency that causes inner chamber to pollute, stop up and damage reduction valve in the reduction valve, guaranteed the cleaning of working environment, improved effect of easing stress.
In above-mentioned structure improved reduction valve, be provided with seal ring two between described bottom and the valve body.
Compared with prior art, the advantage of this structure improved reduction valve is:
1, this structure improved reduction valve passes through to regulate the interaction of pressure adjusting spring and resistance spring, thereby the gap that defines between mangetic core assembly and the valve core case reaches the purpose of regulating hydraulic pressure, makes structure of relief pressure valve more become reasonable like this.In addition because directly by revolting the elastic-restoring force effect of spring, thereby these component of epithelium have been omitted, the seal ring that replaces epithelium to play seal action only is set between mangetic core assembly and pressure modulating opening gets final product, improved sealability and working life, increased the stability of pressure.
2,, and dismountable bottom is installed in the through hole because structure improved reduction valve has through hole in the valve body bottom, all more convenient in the time of therefore when inner body damages, need changing again and install.
3, owing on valve core rod, be with filter screen, overcome, guaranteed the cleaning of working environment, improved effect of easing stress because of impurity enters the deficiency that causes inner chamber to pollute, stop up and damage reduction valve in the reduction valve.
Description of drawings
Fig. 1 is the sectional structure schematic representation of this structure improved reduction valve.
Among the figure, 1, valve body; 2, valve core case; 3, mangetic core assembly; 3a, valve core rod; 3b, valve core head; 3b1, resistance spring seat; 3c, cartridge cover; 3c1, pressure adjusting spring seat; 4, pressure regulation assembly; 4a, pressure regulating cover; 4b, pressure adjusting spring; 4c, look nut; 5, bottom; 6, resistance spring; 7, seal ring one; 8, seal ring two; 9, pressure modulating opening; 10, filter screen; 11, rubber sheet gasket; 12, cross water channel; 13, seal ring three.
Embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1, the reduction valve of this improvement comprises component such as valve body 1, mangetic core assembly 3, pressure regulation assembly 4 and bottom 5.
Specifically, have water intake and water outlet on the valve body 1, in valve body 1, be provided with valve core case 2, mangetic core assembly 3 is housed in valve core case 2, mangetic core assembly 3 comprises valve core rod 3a and the valve core head 3b that links to each other with valve core rod 3a, the end of above-mentioned valve core rod 3a is provided with the cartridge cover 3c that is fixed with one with valve core rod 3a, be provided with the water channel 12 excessively that can change flux when mangetic core assembly 3 is mobile in valve core case 2 between mangetic core assembly 3 and the valve core case 2, wherein water flows in the valve body 1 from water intake and flows out from water outlet through water channel 12 then again.
Having the pressure modulating opening 9 that is positioned at above the valve core case 2 on the valve body 1, in pressure modulating opening 9, be equipped with and act on being used on the mangetic core assembly 3 and regulate the pressure regulation assembly 4 of pressure, this pressure regulation assembly 4 acts on mangetic core assembly 3 is moved downward, and can comprise by this pressure regulation assembly 4 of size of the required pressure of pressure regulation assembly 4 can regulate and be pressure adjusting spring 4b and the look nut 4c that pressure regulating cover 4a cylindraceous, stainless steel material make, look nut 4c is loaded on the pressure regulating cover 4a by screw-thread fit, and has hexagonal hole on it, operation when making things convenient for instrument to regulate like this.Have a pressure adjusting spring 4b seat 3c1 on the above-mentioned cartridge cover 3c, pressure adjusting spring 4b is placed on the spring seat and is loaded among the pressure regulating cover 4a, and an end of pressure regulation acts on the look nut 4c, and the other end acts on the cartridge cover 3c.Also be provided with the top cover that is connected with pressure regulating cover 4a screw-thread fit on the top of pressure regulating cover 4a.
Have the through hole that communicates with valve body 1 inside in valve body 1 bottom, bottom 5 be installed in the through hole, this wherein bottom 5 be dismountable, all more convenient in the time of when inner body damages, need changing again and install like this.Above-mentioned mangetic core assembly 3 is provided with the resistance spring 6 that makes mangetic core assembly 3 have the trend of moving upward, resistance spring 6 also adopts stainless steel material to make, on valve core head 3b, has the resistance spring seat 3b1 that is fixed with one with it, resistance spring 6 is between mangetic core assembly 3 and bottom 5, one end of resistance spring 6 is placed in resistance spring seat 3b1 and goes up and act on the mangetic core assembly 3, the other end acts on the bottom 5, the flux magnitude of crossing water channel 12 is the interaction by pressure adjusting spring 4b in the adjusting pressure assembly and resistance spring 6, thereby the gap that defines between mangetic core assembly 3 and the valve core case 2 reaches the purpose of regulating hydraulic pressure.Be provided with rubber sheet gasket 11 between valve core rod 3a and valve core head 3b, this rubber sheet gasket 11 plays the effect of sealing on the one hand, plays the vibrations that trimmer valve core print 3b is produced in addition when valve core head 3b is resisted against on the valve core case 2.
For the sealability and the working life of having improved reduction valve, increased the stability of pressure, between mangetic core assembly 3 and pressure modulating opening 9, be provided with the seal ring 1 that is enclosed within on the mangetic core assembly 3.Between bottom 5 and valve body 1, be provided with seal ring 28 in addition, between valve core case 2 and valve core rod 3a, be provided with seal ring 3 13.
Be with filter screen 10 on the above-mentioned valve core rod 3a, this filter screen 10 is used for impurity screening and convenient for dismounting and washing again.Overcome like this because of impurity enters the deficiency that causes inner chamber to pollute, stop up and damage reduction valve in the reduction valve, guaranteed the cleaning of working environment, improved effect of easing stress.
Also be provided with a pressure gauge on valve body 1, this pressure gauge is used to demonstrate the force value at the mouth of a river.During this reduction valve operation, at first rotate look nut 4c by instrument, make pressure adjusting spring 4b axially to lower compression, under the effect of the pressure adjusting spring 4b that is compressed, be pressed on downwards on the cartridge cover 3c, thereby valve core rod 3a is moved downward, the water channel 12 of crossing between valve core head 3b and the valve core case 2 just is opened like this, water just flows into from water intake and flows out from water outlet through water channel 12 then in the valve body 1 again like this, wherein the part of the current roof pressure mangetic core assembly 3 that makes progress moves upward gradually it to rise, the gap of crossing water channel 12 that is in like this between valve core head 3b spare and the valve core case 2 just diminishes, be resisted against on the valve core case 2 until valve core head 3b, thereby make the pressure of water outlet reduce to predefined pressure.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used terms such as valve body 1, valve core case 2, mangetic core assembly 3, valve core rod 3a, valve core head 3b, resistance spring seat 3b1, cartridge cover 3c, pressure adjusting spring seat 3c1, pressure regulation assembly 4, pressure regulating cover 4a, pressure adjusting spring 4b, look nut 4c, bottom 5, resistance spring 6, seal ring 1, seal ring 28, pressure modulating opening 9, filter screen 10, rubber sheet gasket 11, mistake water channel 12 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (5)
1, a kind of structure improved reduction valve, comprise valve body (1) with water intake and water outlet, in valve body (1), be provided with valve core case (2), mangetic core assembly (3) is housed in valve core case (2), be provided with the water channel (12) excessively that when mangetic core assembly (3) is mobile in valve core case (2), can change flux between mangetic core assembly (3) and the valve core case (2), on valve body (1), have the pressure modulating opening (9) that is positioned at valve core case (2) top, in pressure modulating opening (9), be equipped with and act on being used on the mangetic core assembly (3) and regulate the pressure regulation assembly (4) of pressure, it is characterized in that, described mangetic core assembly (3) is provided with the resistance spring (6) that makes mangetic core assembly (3) have the trend of moving upward, and is provided with the seal ring one (7) that is enclosed within on the mangetic core assembly (3) between mangetic core assembly (3) and pressure modulating opening (9).
2, structure improved reduction valve according to claim 1, it is characterized in that, described valve body (1) bottom has the through hole that communicates with valve body (1) inside, bottom (5) is installed in the through hole, above-mentioned resistance spring (6) is positioned between mangetic core assembly (3) and the bottom (5), one end of resistance spring (6) acts on the mangetic core assembly (3), and the other end acts on the bottom (5).
3, structure improved reduction valve according to claim 1, it is characterized in that, described mangetic core assembly (3) comprises valve core rod (3a) and the valve core head (3b) that links to each other with valve core rod (3a), is provided with rubber sheet gasket (11) between valve core rod (3a) and valve core head (3b).
4, according to claim 1 or 2 or 3 described structure improved reduction valve, it is characterized in that, be with filter screen (10) on the described valve core rod (3a).
5, according to claim 1 or 2 or 3 described structure improved reduction valve, it is characterized in that, be provided with seal ring two (8) between described bottom (5) and the valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200845154U CN201190823Y (en) | 2008-03-14 | 2008-03-14 | Pressure reducing valve with improved structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200845154U CN201190823Y (en) | 2008-03-14 | 2008-03-14 | Pressure reducing valve with improved structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201190823Y true CN201190823Y (en) | 2009-02-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200845154U Expired - Fee Related CN201190823Y (en) | 2008-03-14 | 2008-03-14 | Pressure reducing valve with improved structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201190823Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128293A (en) * | 2010-12-07 | 2011-07-20 | 杭州春江阀门有限公司 | Adjustable dynamic flow balancing valve |
| CN102278503A (en) * | 2011-06-16 | 2011-12-14 | 陈建华 | Integral pressure reduction valve |
| CN102678994A (en) * | 2012-05-17 | 2012-09-19 | 浙江维卫电子洁具有限公司 | Novel automatic decompression voltage and current stabilizer |
| CN104633206A (en) * | 2014-12-09 | 2015-05-20 | 浙江盾安阀门有限公司 | Filter type piston pressure reduction valve |
| CN106352128A (en) * | 2016-10-25 | 2017-01-25 | 浙江盾安智控科技股份有限公司 | Automatic valve core component and differential pressure-independent type flow control valve |
| CN108223872A (en) * | 2018-02-05 | 2018-06-29 | 苏州博锦自控阀业有限公司 | A kind of self-operated type Fluorine-lined pressure-regulating valve |
| CN109210241A (en) * | 2017-07-03 | 2019-01-15 | 芜湖美的厨卫电器制造有限公司 | Safety valve and water heater |
| CN110397130A (en) * | 2019-07-23 | 2019-11-01 | 小普未来科技（深圳）股份公司 | It is a kind of for automatically controlling the constant pressure valve of hydraulic pressure |
-
2008
- 2008-03-14 CN CNU2008200845154U patent/CN201190823Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128293A (en) * | 2010-12-07 | 2011-07-20 | 杭州春江阀门有限公司 | Adjustable dynamic flow balancing valve |
| CN102128293B (en) * | 2010-12-07 | 2012-05-09 | 杭州春江阀门有限公司 | Adjustable dynamic flow balancing valve |
| CN102278503A (en) * | 2011-06-16 | 2011-12-14 | 陈建华 | Integral pressure reduction valve |
| CN102678994A (en) * | 2012-05-17 | 2012-09-19 | 浙江维卫电子洁具有限公司 | Novel automatic decompression voltage and current stabilizer |
| CN104633206A (en) * | 2014-12-09 | 2015-05-20 | 浙江盾安阀门有限公司 | Filter type piston pressure reduction valve |
| CN106352128A (en) * | 2016-10-25 | 2017-01-25 | 浙江盾安智控科技股份有限公司 | Automatic valve core component and differential pressure-independent type flow control valve |
| CN109210241A (en) * | 2017-07-03 | 2019-01-15 | 芜湖美的厨卫电器制造有限公司 | Safety valve and water heater |
| CN109210241B (en) * | 2017-07-03 | 2024-02-23 | 芜湖美的厨卫电器制造有限公司 | Safety valve and water heater |
| CN108223872A (en) * | 2018-02-05 | 2018-06-29 | 苏州博锦自控阀业有限公司 | A kind of self-operated type Fluorine-lined pressure-regulating valve |
| CN108223872B (en) * | 2018-02-05 | 2019-05-31 | 苏州博锦自控阀业有限公司 | A kind of self-operated type Fluorine-lined pressure-regulating valve |
| CN110397130A (en) * | 2019-07-23 | 2019-11-01 | 小普未来科技（深圳）股份公司 | It is a kind of for automatically controlling the constant pressure valve of hydraulic pressure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090204 Termination date: 20100314 |