CN106224634A - A kind of can the gate valve of replacing valve stem packing ring with pressure - Google Patents
A kind of can the gate valve of replacing valve stem packing ring with pressure Download PDFInfo
- Publication number
- CN106224634A CN106224634A CN201610720380.5A CN201610720380A CN106224634A CN 106224634 A CN106224634 A CN 106224634A CN 201610720380 A CN201610720380 A CN 201610720380A CN 106224634 A CN106224634 A CN 106224634A
- Authority
- CN
- China
- Prior art keywords
- valve
- gland
- gap
- rod
- packing ring
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
nullThe present invention be a kind of can the gate valve of replacing valve stem packing ring with pressure，Including valve body、Valve gap、Valve rod、Valve stem nut、Valve plate and gland，Described valve gap is detachably secured at the upper shed of valve body，Described gland is detachably secured at the upper shed of valve gap，Described valve rod stretches in valve body through gland and valve gap，Described valve stem nut is enclosed within valve rod threadably，Described valve stem nut is detachably secured on valve plate，Described valve plate is located in valve body，It is provided with valve stem packing ring between described valve rod and gland，Described valve gap inner chamber top is provided with valve bonnet seal circle，Described valve rod passes valve bonnet seal circle，The present invention only arranges valve stem packing ring between valve rod and gland，Eliminate the valve stem packing ring between valve rod and valve gap，Valve bonnet seal circle is set on valve gap inner chamber top simultaneously，Valve rod is close to by valve bonnet seal circle，Make gate valve change valve bonnet seal circle when work with pressure also can ensure to seal.
Description
Technical field
The present invention relates to inside screw nonrising stem type gate valve technical field, particularly relate to a kind of can the gate valve of replacing valve stem packing ring with pressure.
Background technology
Gate valve is a kind of common keying valve, the medium utilizing valve plate to connect or blocking in pipeline.In inside screw nonrising stem type gate valve,
The lifting of valve plate relies on valve rod rotational band ovable valve stem lift nut, thus drives valve plate to lift, for ensureing the sealing of gate valve, valve rod
And being provided with sealing member between valve gap and gland, these sealing members belong to consumable accessory, need often to change.Current inside screw nonrising stem type gate valve exists
When changing valve stem packing ring, typically carry out under state the most with pressure, i.e. must in the case of suspending piped water supply function more
Change valve stem packing ring, waste time and energy, bring harmful effect to productive life.
Summary of the invention
Present invention seek to address that the deficiencies in the prior art, and provide a kind of can the gate valve of replacing valve stem packing ring with pressure.
The present invention for achieving the above object, by the following technical solutions: a kind of can the gate valve of replacing valve stem packing ring with pressure,
Including valve body, valve gap, valve rod, valve stem nut, valve plate and gland, described valve gap is detachably secured at the upper shed of valve body,
Described gland is detachably secured at the upper shed of valve gap, and described valve rod stretches in valve body through gland and valve gap, described valve
Stem nut is enclosed within valve rod threadably, and described valve stem nut is detachably secured on valve plate, and described valve plate sets
In valve body, being provided with the diameter through hole more than valve rod in the middle of described valve plate, described valve rod stretches in the through hole of valve plate, described valve rod
Top is provided with annular groove, is provided with snap ring in described annular groove, and described gland pushes down snap ring, and described snap ring pushes down valve gap, described valve
Being provided with valve stem packing ring between bar and gland, described valve gap inner chamber top is provided with valve bonnet seal circle, and described valve rod is close through valve gap
Seal, described valve bonnet seal circle internal diameter is less than stem diameter.
It is provided with gland ring between described gland and valve gap.
Being additionally provided with dust ring between described gland and valve rod, described dust ring is positioned at gland top.
Being additionally provided with axle sleeve below described snap ring, described valve rod passes axle sleeve.
Described valve gap is with bolts with valve body.
Described gland is with bolts with valve gap.
It is provided with valve seals between described valve body and valve gap.
Described valve stem top connects handwheel.
The invention has the beneficial effects as follows: the present invention only arranges valve stem packing ring between valve rod and gland, eliminates valve rod
And the valve stem packing ring between valve gap, arranges valve bonnet seal circle on valve gap inner chamber top, and valve bonnet seal circle is close to valve rod, is made simultaneously
Gate valve is changed valve bonnet seal circle and also can be ensured to seal when work with pressure, and, owing to only need to change between valve rod and gland
Valve stem packing ring, reduces replacing difficulty, reduces workload, need not suspend piped water supply when changing valve stem packing ring, keep away
Exempt from the harmful effect to productive life.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
In figure: 1-valve body；2-valve plate；3-valve stem nut；4-valve gap；5-valve rod；6-valve bonnet seal circle；7-axle sleeve；8-presses
Lid sealing ring；9-snap ring；10-valve stem packing ring；11-dust ring；12-gland；13-handwheel；
It is described in detail referring to the drawings below with reference to embodiments of the invention.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings:
As it is shown in figure 1, a kind of can the gate valve of replacing valve stem packing ring with pressure, including valve body 1, valve gap 4, valve rod 5, valve rod spiral shell
Mother 3, valve plate 2 and gland 12, described valve gap 4 is detachably secured at the upper shed of valve body 1, and described gland 12 is dismountable solid
At the upper shed of valve gap 4, described valve rod 5 stretches in valve body 1 through gland 12 and valve gap 4, and described valve stem nut 3 is with screw thread
The mode connected is enclosed within valve rod 5, and described valve stem nut 3 is detachably secured on valve plate 2, and described valve plate 2 is located at valve body 1
In, it being provided with the diameter through hole more than valve rod 5 in the middle of described valve plate 1, described valve rod 5 stretches in the through hole of valve plate 2, described valve rod 5
Top is provided with annular groove, is provided with snap ring 9 in described annular groove, and described gland 12 pushes down snap ring 9, and described snap ring 9 pushes down valve gap 4,
Being provided with valve stem packing ring 10 between described valve rod 5 and gland 12, described valve gap 4 inner chamber top is provided with valve bonnet seal circle 6, described valve
Bar 5 is less than valve rod 5 diameter through valve bonnet seal circle 6, described valve bonnet seal circle 6 internal diameter.
It is provided with gland ring 8 between described gland 12 and valve gap 4.
Being additionally provided with dust ring 11 between described gland 12 and valve rod 5, described dust ring 11 is positioned at gland 12 top.
Being additionally provided with axle sleeve 7 below described snap ring 9, described valve rod 5 is through axle sleeve 7.
Described valve gap 4 is with bolts with valve body 1.
Described gland 12 is with bolts with valve gap 4.
It is provided with valve seals between described valve body 1 and valve gap 4.
Described valve rod 5 top connects handwheel 13.
During work, rotating handwheel 13 and make valve rod 5 rotate, valve rod 5 produces relative rotation with valve stem nut 3, owing to snap ring 9 will
Valve rod 5 is vertically fixed, and makes valve stem nut 3 lift along valve rod 5, thus drives valve plate 2 to lift, it is achieved the keying of valve, valve rod is close
The effect of seal 10 is to prevent the medium in pipeline from leaking at valve rod 5, due to the existence of valve bonnet seal circle 6, makes valve stem seal
Circle 10 and dust ring 11 can with pressure be changed.
Above in conjunction with accompanying drawing, the present invention is exemplarily described, it is clear that the present invention implements not by aforesaid way
Restriction, as long as have employed method design and the various improvement that carry out of technical scheme of the present invention, or the most improved direct application
In other occasion, all within protection scope of the present invention.
Claims (8)
1. can the gate valve of replacing valve stem packing ring with pressure, including valve body (1), valve gap (4), valve rod (5), valve stem nut (3),
Valve plate (2) and gland (12), it is characterised in that described valve gap (4) is detachably secured at the upper shed of valve body (1), described
Gland (12) is detachably secured at the upper shed of valve gap (4), and described valve rod (5) stretches into through gland (12) and valve gap (4)
In valve body (1), described valve stem nut (3) is enclosed within valve rod (5) threadably, and described valve stem nut (3) is detachable
Be fixed on valve plate (2), in described valve plate (2) is located at valve body (1), be provided with diameter in the middle of described valve plate (1) more than valve rod (5)
Through hole, described valve rod (5) stretches in the through hole of valve plate (2), and described valve rod (5) top is provided with annular groove, in described annular groove
Being provided with snap ring (9), described gland (12) pushes down snap ring (9), and described snap ring (9) pushes down valve gap (4), described valve rod (5) and gland
(12) being provided with valve stem packing ring (10) between, described valve gap (4) inner chamber top is provided with valve bonnet seal circle (6), and described valve rod (5) is worn
Crossing valve bonnet seal circle (6), described valve bonnet seal circle (6) internal diameter is less than valve rod (5) diameter.
The most according to claim 1 can the gate valve of replacing valve stem packing ring with pressure, it is characterised in that described gland (12)
And it is provided with gland ring (8) between valve gap (4).
The most according to claim 1 can the gate valve of replacing valve stem packing ring with pressure, it is characterised in that described gland (12)
And being additionally provided with dust ring (11) between valve rod (5), described dust ring (11) is positioned at gland (12) top.
The most according to claim 1 can the gate valve of replacing valve stem packing ring with pressure, it is characterised in that described snap ring (9)
Lower section is additionally provided with axle sleeve (7), and described valve rod (5) passes axle sleeve (7).
The most according to claim 1 can the gate valve of replacing valve stem packing ring with pressure, it is characterised in that described valve gap (4)
With bolts with valve body (1).
The most according to claim 1 can the gate valve of replacing valve stem packing ring with pressure, it is characterised in that described gland (12)
With bolts with valve gap (4).
The most according to claim 1 can the gate valve of replacing valve stem packing ring with pressure, it is characterised in that described valve body (1)
And valve gap is provided with valve seals between (4).
The most according to claim 1 can the gate valve of replacing valve stem packing ring with pressure, it is characterised in that described valve rod (5)
Top connects handwheel (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610720380.5A CN106224634A (en) | 2016-08-25 | 2016-08-25 | A kind of can the gate valve of replacing valve stem packing ring with pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610720380.5A CN106224634A (en) | 2016-08-25 | 2016-08-25 | A kind of can the gate valve of replacing valve stem packing ring with pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106224634A true CN106224634A (en) | 2016-12-14 |
Family
ID=57554408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610720380.5A Pending CN106224634A (en) | 2016-08-25 | 2016-08-25 | A kind of can the gate valve of replacing valve stem packing ring with pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106224634A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022686A (en) * | 2019-12-11 | 2020-04-17 | 铜陵天海流体控制股份有限公司 | Wedge gate valve |
-
2016
- 2016-08-25 CN CN201610720380.5A patent/CN106224634A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022686A (en) * | 2019-12-11 | 2020-04-17 | 铜陵天海流体控制股份有限公司 | Wedge gate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161214 |
|
| WD01 | Invention patent application deemed withdrawn after publication |