CN208703262U - Rotation and lifting stem stop valve - Google Patents
Rotation and lifting stem stop valve Download PDFInfo
- Publication number
- CN208703262U CN208703262U CN201821103690.3U CN201821103690U CN208703262U CN 208703262 U CN208703262 U CN 208703262U CN 201821103690 U CN201821103690 U CN 201821103690U CN 208703262 U CN208703262 U CN 208703262U
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- Prior art keywords
- valve
- deck
- rotation
- handwheel
- valve rod
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Abstract
The utility model discloses a kind of rotation and lifting stem stop valves, including valve body, valve deck and the middle flange bolt for connecting the valve body with the valve deck, flap is set in the valve body, valve rod is connected on the flap, the valve rod is extended by the valve deck, seal assembly is provided between the valve rod and the valve deck, it is located at the position except the valve deck on the valve rod and is threaded with valve stem nut, it is located at the valve stem nut on the valve rod and is additionally provided with handwheel far from the valve deck side, the lower end of the handwheel is fixedly installed pressure ring, position between the pressure ring and the handwheel is provided with indicator, the reference cell with indicator cooperation is provided on the valve stem nut.The utility model, convenient for indicating the switch state of shut-off valve.
Description
Technical field
The utility model relates to a kind of shut-off valves, and specifically, the utility model relates to a kind of rotation and lifting stem stop valves.
Background technique
Shut-off valve is a kind of valve being widely used in industrial system, can be used for different operating conditions.As empty gas and water,
The flowing of the various types fluids such as steam, various corrosive medias, mud, oil product.Shut-off valve opening and closing stroke is shorter, generally valve
The 1/3 of seat latus rectum, the pressure on valve rod directly acts on sealing surface, and friction useless on sealing surface, be sealed in valve it is most straight
It connects, most reliable valve.Rotation and lifting stem stop valve mainly drives screw rod and flap to rotate by rotation hand wheel, reaches valve and opens
Close, connect and be truncated the purpose of medium.
But common rotation and lifting stem stop valve has a disadvantage: ending to rotation and lifting bar used in current industry
Valve, almost without switch instruction structure function.
Summary of the invention
The technical problem to be solved by the utility model is to provide a kind of rotation and lifting stem stop valve, can be convenient for knowing
Valve switch position.
In order to solve the above-mentioned technical problem, the utility model adopts the technical scheme that a kind of rotation and lifting bar cut-off
Flap is arranged in the valve body including valve body, valve deck and the middle flange bolt for connecting the valve body with the valve deck in valve,
Valve rod is connected on the flap, the valve rod is extended by the valve deck, and sealing is provided between the valve rod and the valve deck
Component is located at the position except the valve deck on the valve rod and is threaded with valve stem nut, is located at the valve on the valve rod
Stem nut is additionally provided with handwheel far from the valve deck side, and the lower end of the handwheel is fixedly installed pressure ring, the pressure ring and institute
It states the position between handwheel and is provided with indicator, the reference cell with indicator cooperation is provided on the valve stem nut.
Preferably, the seal assembly includes the filler being sheathed between the valve rod and the valve deck, described
Filler pressing sleeve is set above filler, hold-down grid is set above the filler pressing sleeve, the hold-down grid is connected through a screw thread part
It is connect with the valve deck.
Preferably, the bolt connection piece is two groups, symmetrical relative to the valve rod.
Preferably, the pressure ring is integrated with the handwheel.
Preferably, the plate that the indicator has annular body and extended downwardly by the side of annular body
Body, the annular body are rotationally sheathed on the position between the pressure ring and the handwheel, and the reference cell is two,
The space moved along for the plate body is formed between two reference cells.
Preferably, the quantity of the plate body is two, the center symmetric setting relative to the annular body.
Compared with prior art, the utility model has the beneficial effects that: by setting indicating arm and reference cell, comparison
The position of indicating arm and reference cell can be convenient for knowing the switch state of the shut-off valve.Especially, reference cell is two
When, at this point, indicating arm can space between it is mobile, the more intuitive state for observing shut-off valve.
Detailed description of the invention
Fig. 1 is the schematic diagram of one embodiment of the rotation and lifting stem stop valve of the utility model；
Fig. 2 is the stereoscopic schematic diagram of indicator in Fig. 1；
Fig. 3 is the partial structural diagram of Fig. 1, and shut-off valve is in close state；
Fig. 4 is the schematic diagram corresponding with Fig. 3, shut-off valve is in the open state.
Description of symbols
1- valve body；2- flap；3- valve rod；Flange gasket in 4-；5- valve deck；Flange bolt in 6-；7- filler；8- filler pressure
Set；9- hold-down grid；10- valve stem nut；11- pressure ring；12- indicator；1201- annular body；1202- plate body；13- hand
Wheel；14- reference cell.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, but not as practical to this
Novel restriction.
The shut-off valve of the utility model is improved based on existing shut-off valve, has the function of switch instruction.
Referring to Fig.1 shown in, the rotation and lifting stem stop valve of the utility model, including valve body 1, valve deck 5 and by valve body 1 with
The middle flange bolt 6 that valve deck 5 connects forms complete pressure boundary by middle flange gasket 4 between valve body 1 and valve deck 5, realizes close
Envelope.
Flap 2 is set in valve body 1, connects valve rod 3 on flap 2, valve rod 3 is extended by valve deck 5.Between valve rod 3 and valve deck 5
It is provided with seal assembly, so that valve rod 3 to be sealed, avoids fluid by revealing between valve rod 3 and valve deck 5.It is located on valve rod 3
Position except valve deck 5 is threaded with valve stem nut 10, is located at valve stem nut 10 on valve rod 3 and also sets up far from 5 side of valve deck
There is handwheel 13, the lower end of handwheel 13 is fixedly installed pressure ring 11, it is preferable that pressure ring 11 is integrated with handwheel 13.Pressure ring
Position between 11 and handwheel 13 is provided with indicator 12, and the reference cell cooperated with indicator 12 is provided on valve stem nut 10
14.When screwing handwheel 13, handwheel 13 drives indicator 12 to move together, at this point, indicator 12 is also relative to reference cell 14
It is mobile, in this way, it can be seen that the relative position of indicator 12 and reference cell 14, so that it is determined that the switch state of valve.
It is possible to further being arranged two scales in reference cell 14, such as the scale of corresponding valve opening and right
The scale for answering valve to close, in this way, user's observation can be further facilitated.
As shown in Figure 1, the utility model uses packing seal, specifically, seal assembly includes being sheathed on valve rod 3 and valve deck
Filler pressing sleeve 8 is arranged above filler 7, hold-down grid 9 is arranged above filler pressing sleeve 8, hold-down grid 9 passes through for filler 7 between 5
Threaded connector (not indicating in figure) is connect with valve deck 5.Preferably, bolt connection piece is two groups, symmetrical relative to valve rod 3, this
Sample can form symmetrical active force to hold-down grid 9, guarantee filler 7 by uniform pressure.
Referring to Fig. 2 and combine shown in other accompanying drawings, for the opposite position convenient for intuitively observing indicator 12 Yu reference cell 14
It sets, the plate body 1202 that indicator 12 has annular body 1201 and extended downwardly by the side of annular body 1201 is cyclic annular
Ontology 1201 is rotationally sheathed on the position between pressure ring 11 and handwheel 13, i.e. pressure ring 11 and handwheel 13 is by annular body 1201
Limitation is between.Reference cell 14 is two, is formed between two reference cells 14 and is moved along for plate body 1202
Space, in this way, plate body 1202 can only be moved along reference cell 14 when rotating handwheel 13.Further, plate body
1202 quantity is two, relative to the center symmetric setting of annular body 1201, accordingly, four reference cells can be set
14, corresponding two reference cells 14 of each plate body 1202, so that plate body 1202 can be along the sky between reference cell 14
Between move, consequently facilitating observation.
Referring to shown in Fig. 3, when rotating clockwise handwheel 13, valve rod 3 driven under the driving of handwheel 13 flap 2 rotate to
Lower movement, valve is closed, is rotated down in motion process in valve rod 3, since indicator 12 is under the position-limiting action of pressure ring 11, only
It can move downward, when valve is closed, indicator 12 indicates off-position.As shown in the drawing, reference cell 14 can choose as cuboid,
Label (not indicating in figure) can be respectively set by the position of two close end in the reference cell 14.
Referring to shown in Fig. 4, when rotation hand wheel 13 counterclockwise, valve rod 3 driven under the driving of handwheel 13 flap 2 rotate to
Upper movement, valve opening, in the upward rotational movement process of valve rod 3, since indicator 12 is under the position-limiting action of pressure ring 11, only
It can move upwards, when valve is opened, indicator 12 indicates open position.
The entire valve of the utility model keeps main structure similar with common shut-off valve, and processing technology does not have special want
It asks, cost will not dramatically increase, and it is main so that valve is had the function of switch instruction by the simple indicator 12 of increase, it can be intuitive
Reaction valve switch position.It is economical, reliable, simply clear etc. that the utility model has the characteristics that, there is good practical value,
Good economic benefit can be generated after popularization and application.
Above embodiments are only the exemplary embodiment of the utility model, are not used in limitation the utility model, this is practical new
The protection scope of type is defined by the claims.Those skilled in the art can be in the essence and protection scope of the utility model
It is interior, various modifications or equivalent replacements are made to the utility model, this modification or equivalent replacement also should be regarded as falling in originally practical new
In the protection scope of type.
Claims (6)
1. a kind of rotation and lifting stem stop valve, which is characterized in that connect including valve body, valve deck and by the valve body and the valve deck
The middle flange bolt connect, the valve body is interior to be arranged flap, connects valve rod on the flap, the valve rod is extended by the valve deck
Out, seal assembly, the position screw thread being located at except the valve deck on the valve rod are provided between the valve rod and the valve deck
It is connected with valve stem nut, is located at the valve stem nut on the valve rod and is additionally provided with handwheel, the hand far from the valve deck side
The lower end of wheel is fixedly installed pressure ring, and the position between the pressure ring and the handwheel is provided with indicator, the valve stem nut
On be provided with the indicator cooperation reference cell.
2. rotation and lifting stem stop valve according to claim 1, which is characterized in that the seal assembly includes being sheathed on institute
The filler between valve rod and the valve deck is stated, filler pressing sleeve is set above the filler, filler is set above the filler pressing sleeve
Pressing plate, the hold-down grid are connected through a screw thread part and connect with the valve deck.
3. rotation and lifting stem stop valve according to claim 2, which is characterized in that the threaded connector is two groups, phase
It is symmetrical for the valve rod.
4. rotation and lifting stem stop valve according to claim 1, which is characterized in that the pressure ring is integrated with the handwheel
Change structure.
5. rotation and lifting stem stop valve according to claim 1, which is characterized in that the indicator have annular body with
And the plate body extended downwardly by the side of the annular body, the annular body are rotationally sheathed on the pressure ring and institute
The position between handwheel is stated, the reference cell is two, is formed between two reference cells and is used for the plate body edge
Mobile space.
6. rotation and lifting stem stop valve according to claim 5, which is characterized in that the quantity of the plate body is two,
Center symmetric setting relative to the annular body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821103690.3U CN208703262U (en) | 2018-07-12 | 2018-07-12 | Rotation and lifting stem stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821103690.3U CN208703262U (en) | 2018-07-12 | 2018-07-12 | Rotation and lifting stem stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208703262U true CN208703262U (en) | 2019-04-05 |
Family
ID=65938449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821103690.3U Active CN208703262U (en) | 2018-07-12 | 2018-07-12 | Rotation and lifting stem stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208703262U (en) |
-
2018
- 2018-07-12 CN CN201821103690.3U patent/CN208703262U/en active Active
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