CN205781168U - A kind of balanced valve - Google Patents
A kind of balanced valve Download PDFInfo
- Publication number
- CN205781168U CN205781168U CN201620653998.XU CN201620653998U CN205781168U CN 205781168 U CN205781168 U CN 205781168U CN 201620653998 U CN201620653998 U CN 201620653998U CN 205781168 U CN205781168 U CN 205781168U
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- China
- Prior art keywords
- valve
- fixed
- valve body
- diaphragm
- balanced
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Abstract
This utility model provides a kind of balanced valve, belongs to technical field of valve manufacturing.It solve existing balanced valve and the problem such as inconvenience, filterability difference is installed.This balanced valve includes valve gap and the internal valve body for cavity, diaphragm it is fixed with between valve body and valve gap, valve rod it is fixed with on diaphragm, the regulating part that valve body is divided into intake antrum and water chamber it is fixed with in valve body, regulating part and valve rod are coaxially disposed, regulating part includes in tubular and offers the outer wall of water hole, outer wall is fixed with turnover and is supported in the guide part of stem outer circumference, it is fixed with in valve body and covers in outside regulating part and tubular drainage screen, the pressure guide hole making diaphragm bottom be connected is offered with intake antrum on valve body, the lower end of valve rod is fixed with the spool being positioned in intake antrum.This balanced valve has easy for installation, good filtration effect and degree of regulation advantages of higher.
Description
Technical field
This utility model belongs to technical field of valve manufacturing, relates to a kind of balanced valve.
Background technology
Chinese patent literature discloses a kind of self-balanced differential pressure valve [application number: 201220571207.0；Granted publication
Number: CN202972081U], it includes the internal valve body for cavity, and one end of valve body is entrance point, and the other end is the port of export, valve
Internal have spool, is fixed with separator and separator and valve body is divided into upper and lower two cavitys: water flowing chamber and balance in valve body
Chamber, has diaphragm and diaphragm and counter balance pocket is divided into upper and lower two chambers: go up counter balance pocket and lower counter balance pocket, spool position in counter balance pocket
It is connected with diaphragm in water flowing chamber and through separator, valve body has the pressure guide hole upper counter balance pocket and water inlet end being connected,
Having pilot port in lower counter balance pocket, the two ends of a connecting pipe lay respectively at pilot port and water side.
Above-mentioned self-balanced differential pressure valve can improve certain pressure reduction regulation accuracy, but pressure guide hole is through film
Sheet is arranged, pressure guide hole and diaphragm processing inconvenience, high to the required precision installed, and after diaphragm perforation when repeated deformation,
Being easily broken at perforation, service life is short, and additionally it does not possess filtering function.
Summary of the invention
The purpose of this utility model is for the above-mentioned problems in the prior art, it is provided that a kind of good filtration effect,
The balanced valve that easy for installation and degree of regulation is high.
The purpose of this utility model can be realized by following technical proposal: a kind of balanced valve, including valve gap and inside is
The valve body of cavity, is fixed with diaphragm between described valve body and valve gap, described diaphragm is fixed with valve rod, in described valve body
Being fixed with the regulating part that valve body is divided into intake antrum and water chamber, described regulating part and valve rod are coaxially disposed, and its feature exists
In, described regulating part includes in tubular and offers the outer wall of water hole, and described outer wall is fixed with turnover and is supported in valve
The guide part of bar periphery, is fixed with in described valve body and covers in outside regulating part and tubular drainage screen, on described valve body
Offering the pressure guide hole making diaphragm bottom be connected with intake antrum, the lower end of described valve rod is fixed with the valve being positioned in intake antrum
Core.
This balanced valve work time, when intake antrum pressure increase or reduce time, pressure guide hole by pressure transmission to diaphragm bottom,
Diaphragm deformation band ovable valve stem move up or down, and valve rod band movable valve plug rises or falls and makes spool closer or far from regulation
Part so that the water inlet gap between spool and regulating part is decreased or increased, and the discharge pressure of water chamber is so decreased or increased, makes
Obtain the balance that the upper and lower pressure of diaphragm reaches new.
In above-mentioned a kind of balanced valve, described outer wall has the flange of a circle fold inward, described flange bottom
Being fixed with guide part, described guide part is in cone cylinder shape and that diameter the is little port plaster fairlead together in stem outer circumference.This
The port that sample fairlead diameter is little has certain contractility, and laminating stem outer circumference is tight, and guidance quality is good.
In above-mentioned a kind of balanced valve, described valve rod has and is positioned at flange top and fits in the guiding of inside outer wall
Head.Which increase guidance quality, improve degree of regulation.
In above-mentioned a kind of balanced valve, between described guide head and outer wall, be provided with sealing ring one, described outer wall and
Sealing ring two it is provided with between valve body.Sealing ring one and sealing ring two ensure that sealing, it is to avoid the pressure transmission of water chamber is to film
Sheet bottom, does not interferes with diaphragm deformation quantity, and degree of regulation is high.
In above-mentioned a kind of balanced valve, described spool is connected in valve rod lower end by screw, and described spool includes
Blanking cover, described blanking cover is embedded with rubber jam towards the one side of spool, and described blanking cover is towards the one side of screw head and spiral shell
It is provided with check washer between nail head and is positioned at the rubber sheet gasket of check washer bottom.So when intake antrum increased pressure, valve
Core is quickly close to regulating part, and jam and rubber sheet gasket play cushioning effect, it is to avoid both clashing and breaking, extends service life.
In above-mentioned a kind of balanced valve, described diaphragm top is provided with steel disc, and described steel disc supports spring, institute
The spring upper end stated supports the tabletting caved inward, and an adjusting screw rod is pressed on the depression of tabletting through valve gap and its lower end
Place, be fixed with nut one in described valve gap, the outside of valve gap is provided with nut two, described nut one and nut two all with regulate
Screw flight connects.So just can change adjusting screw rod by rotation adjusting screw rod and stretch into the amount of stretching into of valve gap, it is possible to change bullet
The decrement of spring, easy to adjust fast.
Compared with prior art, this balancing valve structure is compact, and volume is little, easy for installation, and guide head fits in inside outer wall,
Valve rod is moved axially to play and guides and spacing effect by guide part, and spool moves steadily, will not produce skew, and pressure reduction regulates
Precision is high, and good filtration effect, service life is long.
Accompanying drawing explanation
Fig. 1 is the structure sectional view of this balanced valve.
Fig. 2 is the structure chart of regulating part in this balanced valve.
In figure, 1, valve gap；2, valve body；2a, intake antrum；2b, water chamber；3, diaphragm；4, valve rod；5, regulating part；6, outer wall；
6a, water hole；6b, flange；7, guide part；8, drainage screen；9, pressure guide hole；10, spool；10a, blanking cover；10b, rubber jam；
10c, check washer；10d, rubber sheet gasket；11, guide head；12, sealing ring one；13, sealing ring two；14, screw；15, steel disc；
16, spring；17, tabletting；18, adjusting screw rod；19, nut one；20, nut two.
Detailed description of the invention
The following is specific embodiment of the utility model and combine accompanying drawing, the technical solution of the utility model is made further
Description, but this utility model is not limited to these embodiments.
As shown in Figure 1 and Figure 2, this balanced valve includes valve gap 1 and the internal valve body 2 for cavity, solid between valve body 2 and valve gap 1
Surely there is diaphragm 3, diaphragm 3 is fixed with valve rod 4, be fixed with in valve body 2 and valve body 2 is divided into intake antrum 2a and the tune of water chamber 2b
Saving part 5, regulating part 5 and valve rod 4 are coaxially disposed, and regulating part 5 includes in tubular and offers the outer wall 6 of water hole 6a, this enforcement
In example, the quantity of water hole 6a is four and circumference is evenly arranged, and outer wall 6 is fixed with turnover and is supported in the guiding of valve rod 4 periphery
Portion 7, is fixed with in valve body 2 and covers in outside regulating part 5 and tubular drainage screen 8, valve body 2 offers make diaphragm 3 bottom with
The pressure guide hole 9 that intake antrum 2a is connected, the lower end of valve rod 4 is fixed with the spool 10 being positioned in intake antrum 2a.
Describing in detail further, diaphragm 3 top is provided with steel disc 15, and steel disc 15 supports spring 16, and spring 16 upper end supports to be had
The tabletting 17 caved inward, an adjusting screw rod 18 is pressed on the recess of tabletting 17 through valve gap 1 and its lower end, solid in valve gap 1
Surely nut 1, the outside of valve gap 1 is had to be provided with nut 2 20, nut 1 and nut 2 20 all with adjusting screw rod 18 screw thread even
Connect.
In order to guidance quality is good, outer wall 6 has the flange 6b of a circle fold inward, and flange 6b bottom is fixed with guide part 7, leads
Being in cone cylinder shape and that diameter the is little port plaster fairlead together in valve rod 4 periphery to portion 7, valve rod 4 has and is positioned on flange 6b
Portion also fits in the guide head 11 inside outer wall 6；For good airproof performance, between guide head 11 and outer wall 6, it is provided with sealing ring 1,
Sealing ring 2 13 it is provided with between outer wall 6 and valve body 2；In order to avoid spool 10 clashing and breaking, spool 10 is connected in valve rod 4 by screw 14
Lower end, spool 10 includes that blanking cover 10a, blanking cover 10a are embedded with rubber jam 10b towards the one side of spool 10, and blanking cover 10a is towards spiral shell
Follow closely the rubber sheet gasket being provided with check washer 10c between the one side of 14 heads and screw 14 head He being positioned at check washer 10c bottom
10d。
This balanced valve work time, when intake antrum 2a pressure increase or reduce time, pressure guide hole 9 by pressure transmission to diaphragm 3
Bottom, diaphragm 3 deformation band ovable valve stem 4 move up or down, and valve rod 4 band movable valve plug 10 rises or falls and makes spool 10 close
Or away from regulating part 5 so that the water inlet gap between spool 10 and regulating part 5 is decreased or increased, and water outlet is so decreased or increased
The discharge pressure of chamber 2b so that the pressure of diaphragm about 3 reaches new balance.
In this balanced valve, diaphragm 3 not perforation, need not be aligned position during installation, easy for installation, guide part 7, guide head
Guide effect is played in moving axially of 11 pairs of valve rods 4, and valve rod 4 moving process is steady, it is ensured that degree of regulation, additionally drainage screen 8
It is arranged on outside regulating part 5, so will not increase valve body 2 volume so that this balanced valve has filtering function.
Specific embodiment described herein is only to this utility model spirit explanation for example.This utility model institute
Belong to those skilled in the art described specific embodiment to make various amendment or supplement or use similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Claims (6)
1. a balanced valve, including valve gap (1) and valve body (2) that inside is cavity, between described valve body (2) and valve gap (1)
It is fixed with diaphragm (3), described diaphragm (3) is fixed with valve rod (4), be fixed with in described valve body (2) and valve body (2) is separated
For the regulating part (5) of intake antrum (2a) and water chamber (2b), described regulating part (5) and valve rod (4) are coaxially disposed, and its feature exists
In, described regulating part (5) includes in tubular and offers the outer wall (6) of water hole (6a), and described outer wall (6) is fixed with and turns over
Roll over and be supported in the guide part (7) of valve rod (4) periphery, be fixed with in described valve body (2) and cover in regulating part (5) outside and in cylinder
The drainage screen (8) of shape, described valve body (2) offers the pressure guide hole making diaphragm (3) bottom be connected with intake antrum (2a)
(9) lower end of, described valve rod (4) is fixed with the spool (10) being positioned in intake antrum (2a).
A kind of balanced valve the most according to claim 1, it is characterised in that described outer wall (6) has a circle fold inward
Flange (6b), described flange (6b) bottom is fixed with guide part (7), and described guide part (7) is in cone cylinder shape and straight
The little port plaster in footpath is together in the fairlead of valve rod (4) periphery.
A kind of balanced valve the most according to claim 2, it is characterised in that described valve rod (4) has and is positioned at flange (6b)
Top also fits in the guide head (11) inside outer wall (6).
A kind of balanced valve the most according to claim 3, it is characterised in that between described guide head (11) and outer wall (6)
It is provided with sealing ring one (12), between described outer wall (6) and valve body (2), is provided with sealing ring two (13).
5. according to a kind of balanced valve described in claim 1 or 2 or 3 or 4, it is characterised in that described spool (10) passes through spiral shell
Nail (14) is connected in valve rod (4) lower end, and described spool (10) includes blanking cover (10a), and described blanking cover (10a) is towards spool
(10) one side is embedded with rubber jam (10b), and described blanking cover (10a) is towards the one side of screw (14) head and screw (14)
It is provided with check washer (10c) between head and is positioned at the rubber sheet gasket (10d) of check washer (10c) bottom.
6. according to a kind of balanced valve described in claim 1 or 2 or 3 or 4, it is characterised in that described diaphragm (3) top is provided with
Steel disc (15), the upper support of described steel disc (15) has spring (16), and described spring (16) upper end supports the pressure caved inward
Sheet (17), an adjusting screw rod (18) is pressed on the recess of tabletting (17), described valve gap (1) through valve gap (1) and its lower end
Inside being fixed with nut one (19), the outside of valve gap (1) is provided with nut two (20), described nut one (19) and nut two (20) all
Threaded with adjusting screw rod (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620653998.XU CN205781168U (en) | 2016-06-28 | 2016-06-28 | A kind of balanced valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620653998.XU CN205781168U (en) | 2016-06-28 | 2016-06-28 | A kind of balanced valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205781168U true CN205781168U (en) | 2016-12-07 |
Family
ID=58127803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620653998.XU Expired - Fee Related CN205781168U (en) | 2016-06-28 | 2016-06-28 | A kind of balanced valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205781168U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662226A (en) * | 2018-08-01 | 2018-10-16 | 李晓宏 | A kind of high-voltage regulator |
| CN110513487A (en) * | 2019-08-05 | 2019-11-29 | 浙江卡博铜业有限公司 | A kind of pressure reducing valve |
-
2016
- 2016-06-28 CN CN201620653998.XU patent/CN205781168U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662226A (en) * | 2018-08-01 | 2018-10-16 | 李晓宏 | A kind of high-voltage regulator |
| CN110513487A (en) * | 2019-08-05 | 2019-11-29 | 浙江卡博铜业有限公司 | A kind of pressure reducing valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20180628 |