CN205001539U - Piston rising stem (RS. ) valve valve rod protection device - Google Patents
Piston rising stem (RS. ) valve valve rod protection device Download PDFInfo
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- CN205001539U CN205001539U CN201520761772.7U CN201520761772U CN205001539U CN 205001539 U CN205001539 U CN 205001539U CN 201520761772 U CN201520761772 U CN 201520761772U CN 205001539 U CN205001539 U CN 205001539U
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- valve
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- protecting jacket
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- rod
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Abstract
The utility model discloses piston rising stem (RS. ) valve valve rod protection device belongs to the valve field, and the purpose provides a rising stem (RS. ) valve valve rod protection device of being convenient for observe the valve motion state. Including upper portion protective sheath and valve -stem nut, the upper portion protective sheath lies in the valve -stem nut top and can dismantle with valve -stem nut and be connected, be equipped with the through -hole in the protective sheath of upper portion, the through -hole is run through the upper end of upper portion protective sheath by the lower extreme of upper portion protective sheath, still include the piston rod, the piston rod sets up along the length direction of valve rod, and the piston rod lies in the through -hole, and one end can be dismantled with the valve rod top and be connected, and the other end exposes in the upper portion protective sheath. The utility model discloses a valve rod by under the circumstances of shroud, can observe the open -closed state of valve through the motion circumstances of observing the piston rod, it is more convenient to observe, more directly perceived.
Description
Technical field
The utility model relates to valve field, particularly piston type rising stem (RS.) valve rod protective gear.
Background technique
Rising stem (RS.) valve as shown in Figure 1, comprises valve body 100 and flashboard 120, is provided with fluid latus rectum 110 in valve body 100, and flashboard 120 is arranged in fluid latus rectum 110 for shutoff fluid latus rectum 110; Valve body 100 upper end is provided with valve gap 130, valve gap 130 is provided with Gland 8, and Gland 8 is connected with bolt with valve gap 130, and valve gap 130 is connected with Stem Mut seat 9 by connecting rod 140, be provided with Stem Mut 2 in Stem Mut seat 9, Stem Mut 2 is connected with handwheel 150; Comprise valve rod 1, valve rod 1 one end is connected with flashboard 120, and the other end is threaded with Stem Mut 2.When rotating handwheel 150, valve rod 1 moves upward, and flashboard 120 leaves fluid latus rectum 110, valve open, and namely fluid latus rectum 110 is unimpeded; Rotate backward handwheel 150, valve rod 1 moves downward, and flashboard 120 shutoff fluid latus rectum 110, valve closing, namely fluid latus rectum 110 cuts off.Valve rod 1 one end between Gland 8 and Stem Mut 2 is outside exposed, and when the valve is open, valve rod 1 upper end is also outside exposed, the exposed part of valve rod 1 by wind, dust, Exposure to Sunlight, the environmetal impact such as drench with rain, rotate motionless after making valve rod 1 corrosion, problems such as affecting the working life of valve, cause valve to scrap in advance, valve consumption is large.In order to protect valve rod 1 from wind, dust, Exposure to Sunlight and the corrosion that drenches with rain, there is valve rod 1 protective gear.If application number is the Chinese patent application of CN200920226286.X, disclose a kind of outside screw valve lead screw protecting device, be made up of safety cover housing, viewing window, valve handle gland and bottom guard shield, safety cover housing is closely fixedly connected with valve handle gland, safety cover housing is provided with viewing window, and valve handle gland is fixed on valve copper cover; Bottom guard shield is contained on leading screw, is connected with leading screw activity.This valve leading screw protective gear energy available protecting outside screw valve lead screw, not by the impact of external environment, extends the working life of valve.But the motion of this valve leading screw is observed by viewing window, viewing window by wind, Exposure to Sunlight, drench with rain be easy to pollute viewing unclear, and observe directly perceived not.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of piston type rising stem (RS.) valve rod protective gear being convenient to observe valve motion state.
The technical solution adopted in the utility model is: piston type rising stem (RS.) valve rod protective gear, comprises top protecting jacket and Stem Mut; Described top protecting jacket to be positioned at above Stem Mut and to removably connect with Stem Mut; Be provided with through hole in the protecting jacket of top, described through hole runs through the upper end of top protecting jacket by the lower end of top protecting jacket; Also comprise piston rod, described piston rod is arranged along the length direction of valve rod, and piston rod is positioned at through hole, and one end and valve stem tip removably connect, and the other end exposes to top protecting jacket.
Further, described piston rod is provided with scale.
Further, described piston rod is provided with piston, and piston and top protecting jacket inwall are slidably connected.
Further, described top protecting jacket comprises body and upper shield, and described body and upper shield removably connect; Also comprise limiting stopper, described limiting stopper to be set on piston rod and to be positioned at above piston.
Further, also comprise the bottom protecting jacket be set on valve rod, the Gland of protecting jacket one end, described bottom and rising stem (RS.) valve removably connects.
Further, described bottom protecting jacket comprises left half cover and right half cover, and a described left side half cover and right half cover removably connect.
The beneficial effects of the utility model are: piston type rising stem (RS.) valve rod protective gear; comprise top protecting jacket and Stem Mut; top protecting jacket to be positioned at above Stem Mut and to removably connect with Stem Mut; valve rod cover just covers by top protecting jacket; avoid valve rod upper end outside exposed, by the impact of external environment.And piston rod is arranged along the length direction of valve rod, piston rod one end and valve stem tip removably connect, and the other end exposes to top protecting jacket.Therefore, when valve rod is by cover cap, the open and-shut mode of valve can be observed by the motion conditions of observing piston rod, observe more convenient, more directly perceived.
Accompanying drawing explanation
Fig. 1 is rising stem (RS.) valve plan view.
Fig. 2 is piston type rising stem (RS.) valve protection device plan view.
In figure, valve rod 1, Stem Mut 2, top protecting jacket 3; through hole 30, body 31, upper shield 32, piston rod 4; piston 5, limiting stopper 6, bottom protecting jacket 7, left half cover 71; right half cover 72, Gland 8, Stem Mut seat 9; valve body 100, fluid latus rectum 110, flashboard 120; valve gap 130, connecting rod 140, handwheel 150.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described further.Orientation represented by this specification " on ", D score, " top " etc. all Figure 2 shows that standard.
Piston type rising stem (RS.) valve rod protective gear, as shown in Figure 2, comprises top protecting jacket 3 and Stem Mut 2; Described top protecting jacket 3 to be positioned at above Stem Mut 2 and to removably connect with Stem Mut 2; Be provided with through hole 30 in top protecting jacket 3, described through hole 30 is run through the upper end of top protecting jacket 3 by the lower end of top protecting jacket 3; Also comprise piston rod 4, described piston rod 4 is arranged along the length direction of valve rod 1, and piston rod 4 is positioned at through hole 30, and one end and valve rod 1 top removably connect, and the other end exposes to top protecting jacket 3.
Rising stem (RS.) valve, promotes valve rod 1 by rotary valve rod nut 2 and moves up and down and realize the opening and closing of valve.Valve rod 1 moves upward, and valve rod 1 motion exceeds a section of Stem Mut 2 can be outside exposed.Top protecting jacket 3 plays the effect of cover cap valve rod 1.Therefore, top protecting jacket 3 to be positioned at above Stem Mut 2 and to removably connect with Stem Mut 2, and valve rod 1 exceeds a section of Stem Mut 2 and is in top protecting jacket 3, from the impact of external environment.But the end of valve rod 1, by top protecting jacket 3 cover cap, is not easy to the state that moves up and down of observing valve rod 1, can not be distinguished the opening and closing degree of valve by the motion state of valve rod 1.Conveniently observe the motion state of valve rod 1, to make correct judgement to the open and-shut mode of valve, therefore, be provided with through hole 30 in described top protecting jacket 3, described through hole 30 is run through the upper end of top protecting jacket 3 by the lower end of top protecting jacket 3; Also comprise piston rod 4, described piston rod 4 is arranged along the length direction of valve rod 1, and piston rod 4 one end and valve rod 1 top removably connect, and namely as shown in Figure 2, valve rod 1 upper end is provided with tapped hole, and the lower end of piston rod 4 is threaded with valve rod 1 threaded upper ends hole.The other end exposes to top protecting jacket 3.Valve rod 1 moves up and down, thus drives piston rod 4 to follow valve rod 1 and move up and down, and just can be judged the motion state of valve rod 1, thus judge the opening and closing situation of valve by the motion state of observing piston rod 4.Piston rod 4 one end exposes to the motion state that top protecting jacket 3 is convenient to observe piston rod 4.
Further, as shown in Figure 2, described piston rod 4 is provided with scale.
Because piston rod 4 is provided with scale, therefore, the opening and closing situation of valve can be judged quantitatively.
Further, as shown in Figure 2, described piston rod 4 is provided with piston 5, and piston 5 and top protecting jacket 3 inwall are slidably connected.
Piston 5 is slidably connected with the inwall of top protecting jacket 3, plays leading role, avoid piston rod 4 to offset to the motion of piston rod 4.
Further, as shown in Figure 2, described top protecting jacket 3 comprises body 31 and upper shield 32, and described body 31 and upper shield 32 removably connect; Also comprise limiting stopper 6, described limiting stopper 6 to be set on piston rod 4 and to be positioned at above piston 5.
Body 31 and the upper shield 32 of top protecting jacket 3 can be integrated part, also can be threaded connection.But if the body 31 of top protecting jacket 3 and upper shield 32 are integrated part, so when the piston 5 on piston rod 4 or limiting stopper 6 etc. occur that damage needs to change, the top protecting jacket 3 that needs to dismantle is changed.If body 31 and upper shield 32 removably connect, so directly disassemble upper shield 32 and just can change.Therefore, as preferably, described top protecting jacket 3 comprises body 31 and upper shield 32, and described body 31 and upper shield 32 removably connect.
Due to piston type rising stem (RS.) valve in use, use appearance stuck in order to avoid valve rod 1 rises to limit position, the phenomenon that cannot reset, when generally needing valve to use under full-gear, first turning Stem Mut 2 makes valve rod 1 rise to limit position, then oppositely turn Stem Mut 2, valve rod 1 is declined a little, avoids limit position.Although this operation can effectively avoid valve stuck, troublesome poeration.Therefore, also comprise limiting stopper 6, described limiting stopper 6 to be set on piston rod 4 and to be positioned at above piston 5.When piston rod 4 rise to limiting stopper 6 lean top protecting jacket 3 time; piston rod 4 just cannot continue to rise; the height of limiting stopper 6 is just equivalent to turn after Stem Mut 2 makes valve rod 1 rise to limit position and oppositely turns Stem Mut 2; make the distance that valve rod 1 declines; Stem Mut 2 is oppositely turned without the need to oppositely turning again; valve rod 1 is declined, valve just can be avoided to occur stuck phenomenon, more convenient operation.
Further, as shown in Figure 2, also comprise the bottom protecting jacket 7 be set on valve rod 1, the Gland 8 of protecting jacket 7 one end, described bottom and rising stem (RS.) valve removably connects.
Because between Gland 8 and Stem Mut 2 one section of valve rod 1 is also outside exposed; for avoiding the impact of environment, need to protect this section of valve rod 1, therefore; also comprise the bottom protecting jacket 7 be set on valve rod 1, protecting jacket 7 one end, described bottom and Gland 8 removably connect.
Further, as shown in Figure 2, described bottom protecting jacket 7 comprises left half cover 71 and right half cover 72, and a described left side half cover 71 and right half cover 72 removably connect.
For the ease of the installation and removal of bottom protecting jacket 7, therefore, bottom protecting jacket 7 comprises left half cover 71 and right half cover 72, and left half cover 71 and right half cover 72 are bolted.During use, directly a left side half cover 71, right half cover 72 are bolted to Gland 8, then by bolt, a left side half cover 71, right half cover 72 are fixed, make left half cover 71, right half cover 72 surrounds valve rod 1.
Claims (6)
1. piston type rising stem (RS.) valve rod protective gear, comprises top protecting jacket (3) and Stem Mut (2); Described top protecting jacket (3) is positioned at Stem Mut (2) top and removably connects with Stem Mut (2); It is characterized in that: be provided with through hole (30) in top protecting jacket (3), described through hole (30) runs through the upper end of top protecting jacket (3) by the lower end of top protecting jacket (3); Also comprise piston rod (4); described piston rod (4) is arranged along the length direction of valve rod (1); piston rod (4) is positioned at through hole (30); one end and valve rod (1) top removably connect, and the other end exposes to top protecting jacket (3).
2. piston type rising stem (RS.) valve rod protective gear as claimed in claim 1, is characterized in that: described piston rod (4) is provided with scale.
3. piston type rising stem (RS.) valve rod protective gear as claimed in claim 1 or 2; it is characterized in that: described piston rod (4) is provided with piston (5), piston (5) and top protecting jacket (3) inwall are slidably connected.
4. piston type rising stem (RS.) valve rod protective gear as claimed in claim 3, it is characterized in that: described top protecting jacket (3) comprises body (31) and upper shield (32), described body (31) and upper shield (32) removably connect; Also comprise limiting stopper (6), described limiting stopper (6) is set in piston rod (4) and goes up and be positioned at piston (5) top.
5. piston type rising stem (RS.) valve rod protective gear as claimed in claim 1; it is characterized in that: also comprise the bottom protecting jacket (7) be set on valve rod (1), the Gland (8) of protecting jacket (7) one end, described bottom and rising stem (RS.) valve removably connects.
6. piston type rising stem (RS.) valve rod protective gear as claimed in claim 5; it is characterized in that: described bottom protecting jacket (7) comprises left half cover (71) and right half cover (72), a described left side half cover (71) and right half cover (72) removably connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520761772.7U CN205001539U (en) | 2015-09-29 | 2015-09-29 | Piston rising stem (RS. ) valve valve rod protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520761772.7U CN205001539U (en) | 2015-09-29 | 2015-09-29 | Piston rising stem (RS. ) valve valve rod protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205001539U true CN205001539U (en) | 2016-01-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520761772.7U Active CN205001539U (en) | 2015-09-29 | 2015-09-29 | Piston rising stem (RS. ) valve valve rod protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205001539U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952957A (en) * | 2016-05-18 | 2016-09-21 | 北京航天试验技术研究所 | Rising stem type hydraulic hand wheel for valve |
| CN110375111A (en) * | 2019-08-06 | 2019-10-25 | 上海凯工阀门股份有限公司 | Valve opening instruction device |
-
2015
- 2015-09-29 CN CN201520761772.7U patent/CN205001539U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952957A (en) * | 2016-05-18 | 2016-09-21 | 北京航天试验技术研究所 | Rising stem type hydraulic hand wheel for valve |
| CN105952957B (en) * | 2016-05-18 | 2019-01-18 | 北京航天雷特机电工程有限公司 | A kind of hydraulic handwheel of valve rising stem type |
| CN110375111A (en) * | 2019-08-06 | 2019-10-25 | 上海凯工阀门股份有限公司 | Valve opening instruction device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |