CN203442152U - Pilot-type stop valve - Google Patents
Pilot-type stop valve Download PDFInfo
- Publication number
- CN203442152U CN203442152U CN201320534907.7U CN201320534907U CN203442152U CN 203442152 U CN203442152 U CN 203442152U CN 201320534907 U CN201320534907 U CN 201320534907U CN 203442152 U CN203442152 U CN 203442152U
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- China
- Prior art keywords
- valve
- gland
- spool
- valve element
- main valve
- 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.)
- Expired - Fee Related
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- 239000012530 fluid Substances 0.000 claims abstract description 29
- 210000004907 gland Anatomy 0.000 claims abstract description 29
- 238000007789 sealing Methods 0.000 claims description 23
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency 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
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Details Of Valves (AREA)
Abstract
The utility model discloses a pilot-type stop valve. The pilot-type stop valve comprises a valve body. An inner valve cavity, a fluid inlet channel and a fluid outlet channel are formed in the valve body, wherein the fluid inlet channel and the fluid outlet channel are communicated with the inner valve cavity. A valve sleeve and a main valve element are installed in the inner valve cavity, wherein the main valve element is located in the valve sleeve and the main valve element is matched with the valve body in a sealed mode. A first through-flow hole is formed in the main valve element. A pilot valve element which is matched with the first through-flow hole in a sealed mode is arranged on the main valve element. A valve element gland is arranged on the main valve element. A valve rod which extends upwards, penetrates through the valve element gland and extends out of the valve body is connected to the pilot valve element. The valve element gland is matched with the valve rod in a sliding mode. Shoulder portions which are matched with the valve element gland and are used for driving the main valve element to move upwards are arranged on the portion, located below the valve element gland, of the pilot valve element. A plurality of second through-flow holes are formed in the valve sleeve. According to the pilot-type stop valve, energy is saved when the pilot-type stop valve is opened, opening is easy, and the tightness is improved when the pilot-type stop valve is closed.
Description
Technical field
The utility model relates to a kind of stop valve, particularly relates to a kind of guide type valve.
Background technique
Stop valve, is also pipe valve, is most popular a kind of valve, and why very popular it is, be due in switching process between primary sealing area frictional force little, more durable, Lift is little, easy to manufacture, easy to maintenance, be not only applicable to mesolow, and be applicable to high pressure.The closed principle of stop valve is that dependence valve thick stick pressure, is with movable valve plug to coordinate with valve seal, stops medium circulation.Stop valve is only permitted medium one-way flow, has directivity during installation.The structure length of stop valve is greater than gate valve, and fluid resistance is large simultaneously, and during long-time running, sealing reliability is not strong.
At present, traditional stop valve designs primary sealing area on valve body conventionally, when opening, valve rod band movable valve plug departs from the primary sealing area on valve body, due to the up existence without guide element of spool, spool can be subject to the side pressure of fluid and increase opening force, cause and open inconvenience, also there will be the decentraction of spool and valve rod and affect its shutoff leakproofness, and can damage the primary sealing area on valve body under the washing away for a long time of fluid high flow rate, cavitation, affect working life, and be difficult for changing.
Model utility content
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, and a kind of guide type valve is provided.Laborsaving when this guide type valve is opened, easily open, and the leakproofness can improve valve and turn-off time.
For achieving the above object, the technical solution adopted in the utility model is: a kind of guide type valve, it is characterized in that: comprise valve body, the fluid inlet passage that is provided with body cavity on described valve body and is communicated with body cavity and fluid output channel, valve pocket and the main valve plug that is positioned at valve pocket are installed in described body cavity, described main valve plug coordinates with valve seal, on described main valve plug, offer the first through flow hole, on described main valve plug, be provided with the guide's spool being sealed and matched with the first through flow hole, on described main valve plug, be provided with spool gland, described guide's spool is connected with the valve rod that extends up through spool gland and stretch out valve body, described spool gland coordinates with valve stem slides, on described guide's spool and be positioned at spool gland below and be provided with and match with spool gland and for driving the up shoulder of main valve plug, on described valve pocket, offer a plurality of the second through flow holes.
Above-mentioned a kind of guide type valve, is characterized in that: described main valve plug is arranged on valve body by valve seat, is provided with the primary sealing area being sealed and matched with main valve plug on described valve seat.
Above-mentioned a kind of guide type valve, is characterized in that: described main valve plug and valve seat form linear sealing.
Above-mentioned a kind of guide type valve, is characterized in that: between described valve seat and valve pocket, be provided with a plurality of the first seal rings.
Above-mentioned a kind of guide type valve, is characterized in that: the top of described valve pocket is provided with upper guide bush, and the arranged outside of described upper guide bush has outer gland.
Above-mentioned a kind of guide type valve, is characterized in that: between described outer gland and valve pocket, be provided with a plurality of the second seal rings.
The utility model compared with prior art has the following advantages:
1, of the present utility model simple in structure, rationally novel in design.
2, the utility model, by guide's spool is set, while first making fluid inlet passage and fluid output channel fluid pressure tend to balance, then is opened main valve plug completely, thereby is made valve opening easy.
3, the utility model guides the main valve plug rising by valve pocket is set, and avoids the lateral pressure of fluid to main valve plug, and valve opening is more prone to, and also by the guiding of valve pocket, has prevented main valve plug, valve rod decentraction and affects it and turn-off leakproofness.
4, the utility model is by valve seat is set, and primary sealing area is arranged on valve seat, while causing primary sealing area to lose efficacy when fluid washes away for a long time to primary sealing area, under the effect of cavitation, can extend the working life of whole stop valve by changing valve seat.
5, the linear sealing structure that the utility model main valve plug and valve seat adopt, makes seal pressure large, and valve turn-offs tight, without leaking.
6, of the present utility model to realize cost low, and using effect is good, is convenient to promote the use of.
In sum, the utility model is simple in structure, and rationally novel in design, functional reliability is high, and long service life is laborsaving during unlatching, turn-offs tightly, and using effect is good, is convenient to promote the use of.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is A place enlarged view in Fig. 1.
Description of reference numerals:
Embodiment
A kind of guide type valve as shown in Figure 1, comprise valve body 1, on described valve body 1, be provided with body cavity 3 and the fluid inlet passage 7 being communicated with body cavity 3 and fluid output channel 16, valve pocket 9 and the main valve plug 2 that is positioned at valve pocket 9 are installed in described body cavity 3, described main valve plug 2 is sealed and matched with valve body 1, on described main valve plug 2, offer the first through flow hole 4, on described main valve plug 2, be provided with the guide's spool 14 being sealed and matched with the first through flow hole 4, on described main valve plug 2, be provided with spool gland 15, described guide's spool 14 is connected with the valve rod 11 that extends up through spool gland 15 and stretch out valve body 1, described spool gland 15 is slidably matched with valve rod 11, on described guide's spool 14 and be positioned at spool gland 15 belows and be provided with and match with spool gland 15 and for driving the up shoulder 14-1 of main valve plug 2, on described valve pocket 9, offer a plurality of the second through flow holes 8.
During use, when needs Open valve, by valve rod 11, drive guide's spool 14, make the first through flow hole 4 on 14 disengagings of guide's spool and main valve plug 2, now, fluid is through fluid inlet passage 7, and enter the gap between valve pocket 9 and spool gland 15 through the second through flow hole 8, entering spool gland 15 tops the gap between guide's spool 14 and valve rod 11 enters in the first through flow hole 4 again, finally enter fluid output channel 16, fluid inlet passage 7 and fluid output channel 16 fluid pressures are tended to balance, then, the shoulder 14-1 band movable valve plug gland 15 of guide's spool 14, thereby drive main valve plug 2 up, main valve plug 2 is opened completely, in the present embodiment, by guide's spool 14 is set, while first making fluid inlet passage 7 and fluid output channel 16 fluid pressures tend to balance, open again main valve plug 2 completely, thereby make valve opening easy, and because the main valve plug 2 of the 9 pairs of risings of valve pocket that arrange guides, avoid the lateral pressure of fluid to main valve plug 2, valve opening is more prone to, also by the guiding of valve pocket 9, prevented main valve plug 2, valve rod 11 decentraction and affect it and turn-off leakproofness.
As depicted in figs. 1 and 2, described main valve plug 2 is arranged on valve body 1 by valve seat 5, is provided with the primary sealing area 5-1 being sealed and matched with main valve plug 2 on described valve seat 5.By valve seat 5 is set, and primary sealing area 5-1 is arranged on valve seat 5, while causing primary sealing area 5-1 to lose efficacy when fluid washes away for a long time to primary sealing area 5-1, under the effect of cavitation, can extends the working life of whole stop valve by changing valve seat 5.
As shown in Figure 2, described main valve plug 2 forms linear sealing, the i.e. relative primary sealing area 5-1 of secondary sealing area 2-1 structure formation linear sealing at a certain angle on main valve plug 2 with valve seat 5, the linear sealing structure that main valve plug 2 and valve seat 5 adopt, make seal pressure large, valve turn-offs tight, without leaking.
As shown in Figure 1, the top of described valve pocket 9 is provided with upper guide bush 10, and the arranged outside of described upper guide bush 10 has outer gland 12.
As shown in Figure 1, between described valve seat 5 and valve pocket 9, be provided with a plurality of the first seal rings 6.Between described outer gland 12 and valve pocket 9, be provided with a plurality of the second seal rings 13.By arranging, the first seal ring 6 and the second seal ring 13 have effectively been stopped valves leakage, the generation of the situation that leaks outside, and guarantee sealing effect.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every any simple modification, change and equivalent structure transformation of above embodiment being done according to the utility model technical spirit, all still belongs in the protection domain of technical solutions of the utility model.
Claims (6)
1. a guide type valve, it is characterized in that: comprise valve body (1), on described valve body (1), be provided with body cavity (3) and the fluid inlet passage (7) being communicated with body cavity (3) and fluid output channel (16), valve pocket (9) is installed in described body cavity (3) and is positioned at the main valve plug (2) of valve pocket (9), described main valve plug (2) is sealed and matched with valve body (1), on described main valve plug (2), offer the first through flow hole (4), on described main valve plug (2), be provided with the guide's spool (14) being sealed and matched with the first through flow hole (4), on described main valve plug (2), be provided with spool gland (15), described guide's spool (14) is connected with the valve rod (11) that extends up through spool gland (15) and stretch out valve body (1), described spool gland (15) is slidably matched with valve rod (11), described guide's spool (14) is upper and be positioned at spool gland (15) below and be provided with and match with spool gland (15) and for driving the up shoulder (14-1) of main valve plug (2), on described valve pocket (9), offer a plurality of the second through flow holes (8).
2. a kind of guide type valve according to claim 1, is characterized in that: it is upper that described main valve plug (2) is arranged on valve body (1) by valve seat (5), is provided with the primary sealing area (5-1) being sealed and matched with main valve plug (2) on described valve seat (5).
3. a kind of guide type valve according to claim 2, is characterized in that: described main valve plug (2) forms linear sealing with valve seat (5).
4. a kind of guide type valve according to claim 2, is characterized in that: between described valve seat (5) and valve pocket (9), be provided with a plurality of the first seal rings (6).
5. a kind of guide type valve according to claim 1, is characterized in that: the top of described valve pocket (9) is provided with upper guide bush (10), and the arranged outside of described upper guide bush (10) has outer gland (12).
6. a kind of guide type valve according to claim 5, is characterized in that: between described outer gland (12) and valve pocket (9), be provided with a plurality of the second seal rings (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320534907.7U CN203442152U (en) | 2013-08-29 | 2013-08-29 | Pilot-type stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320534907.7U CN203442152U (en) | 2013-08-29 | 2013-08-29 | Pilot-type stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203442152U true CN203442152U (en) | 2014-02-19 |
Family
ID=50093209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320534907.7U Expired - Fee Related CN203442152U (en) | 2013-08-29 | 2013-08-29 | Pilot-type stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203442152U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578602A (en) * | 2018-11-21 | 2019-04-05 | 浙江工贸职业技术学院 | A kind of guide type valve |
-
2013
- 2013-08-29 CN CN201320534907.7U patent/CN203442152U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578602A (en) * | 2018-11-21 | 2019-04-05 | 浙江工贸职业技术学院 | A kind of guide type 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 |
Granted publication date: 20140219 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |