CN106224574A - A kind of gate valve that can change valve stem packing ring when supplying water - Google Patents
A kind of gate valve that can change valve stem packing ring when supplying water Download PDFInfo
- Publication number
- CN106224574A CN106224574A CN201610720123.1A CN201610720123A CN106224574A CN 106224574 A CN106224574 A CN 106224574A CN 201610720123 A CN201610720123 A CN 201610720123A CN 106224574 A CN106224574 A CN 106224574A
- Authority
- CN
- China
- Prior art keywords
- valve
- gland
- ring
- gap
- rod
- 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
Links
Classifications
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- 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
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0227—Packings
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- 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
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- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
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- 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 is a kind of gate valve that can change valve stem packing ring when supplying water，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 gland has gland ring A，Gland ring A is pressed on valve gap by described gland，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，It is provided with valve stem packing ring between described valve rod and gland，Described valve rod top is provided with the baffle ring of projection，Described baffle ring has 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 under valve rod baffle ring simultaneously，Make gate valve maintenance when supplying water、Change valve bonnet seal circle 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 lock that can change valve stem packing ring when supplying water
Valve.
Background technology
Gate valve is a kind of common keying valve, the medium utilizing valve plate to connect or blocking in pipeline, and gate valve extensively should
For water system.The difference whether lifted when opening and closing according to valve rod, gate valve is divided into Outside screw stem rising through handwheel type gate valve and inside screw nonrising stem type gate valve, at dark bar
In 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 close of gate valve
Envelope, is provided with sealing member between valve rod and valve gap and gland, and these sealing members belong to consumable accessory, need often to overhaul, change.At present
Inside screw nonrising stem type gate valve when changing valve stem packing ring, valve stem packing ring need to be changed in the case of piped water supply function suspending, time-consuming
Arduously, harmful effect is brought to productive life；The gland of current inside screw nonrising stem type gate valve and valve gap are plane contact, and sealing difficulty is relatively
Greatly.
Summary of the invention
Present invention seek to address that the deficiencies in the prior art, and a kind of lock that can change valve stem packing ring when supplying water is provided
Valve.
The present invention for achieving the above object, by the following technical solutions: a kind of can change valve stem packing ring when supplying water
Gate valve, including valve body, valve gap, valve rod, valve stem nut, valve plate and gland, described valve gap be detachably secured to valve body on open
At Kou, described gland is detachably secured at the upper shed of valve gap, and described gland bottom is projection, and insertion valve gap is opened
Mouthful, described gland has gland ring A, and gland ring A is pressed on valve gap by described gland, and described valve rod passes gland
Stretching in valve body with valve gap, described valve stem nut is enclosed within valve rod threadably, and described valve stem nut is dismountable
Being fixed on valve plate, described valve plate is located in valve body, is provided with the diameter through hole more than valve rod in the middle of described valve plate, and described valve rod is stretched
Entering in the through hole of valve plate, be provided with valve stem packing ring between described valve rod and gland, described valve rod top is provided with the baffle ring of projection, institute
Stating baffle ring and have valve bonnet seal circle, valve bonnet seal circle is pressed on valve gap by described baffle ring, and described valve rod passes valve bonnet seal circle,
Described valve bonnet seal circle internal diameter is less than stem diameter.
Gland ring B it is additionally provided with 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.
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 under valve rod baffle ring, and valve bonnet seal circle is close to valve rod, is made lock simultaneously
Valve maintenance when supplying water, replacing valve bonnet seal circle also can ensure to seal；Gland projection is inserted in valve gap, and gland contacts with valve gap
Face does not only have plane, has curved surface yet, and contact area is big, arranges gland ring A, be additionally provided with pressure between gland and valve gap under gland
Lid sealing ring B, sealing effectiveness is more preferable.
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-gland ring
A；8-valve stem packing ring；9-gland ring B；10-dust ring；11-gland；12-handwheel；13-baffle ring；
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 gate valve that can change valve stem packing ring when supplying water, including valve body 1, valve gap 4, valve rod 5, valve
Stem nut 3, valve plate 2 and gland 11, described valve gap 4 is detachably secured at the upper shed of valve body 1, and described gland 11 is detachable
The upper shed being fixed on valve gap 4 at, described gland 11 bottom is projection, insert valve gap 4 upper shed, described gland 11 is divided into
Having gland ring A7, described gland 11 to be pressed on valve gap 4 by gland ring A7, described valve rod 5 is through gland 11 and valve gap 4
Stretching in valve body 1, described valve stem nut 3 is enclosed within valve rod 5 threadably, and described valve stem nut 3 is dismountable solid
On valve plate 2, described valve plate 2 is located in valve body 1, is provided with the diameter through hole more than valve rod 5, described valve in the middle of described valve plate 2
Bar 5 stretches in the through hole of valve plate 2, is provided with valve stem packing ring 8 between described valve rod 5 and gland 11, and described valve rod 5 top is provided with convex
The baffle ring 13 risen, described baffle ring 13 has valve bonnet seal circle 6, and valve bonnet seal circle 6 is pressed on valve gap 4 by described baffle ring 13, institute
State valve rod 5 and be less than valve rod 5 diameter through valve bonnet seal circle 6, described valve bonnet seal circle 6 internal diameter.
It is additionally provided with gland ring B9 between described gland 11 and valve gap 4.
Being additionally provided with dust ring 10 between described gland 11 and valve rod 5, described dust ring 10 is positioned at gland 11 top.
Described valve gap 4 is with bolts with valve body 1.
Described gland 11 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 12.
During work, rotating handwheel 12 and make valve rod 5 rotate, valve rod 5 produces relative rotation with valve stem nut 3, due to gland 11
Push down baffle ring 13 vertically to be fixed by valve rod 5, make valve stem nut 3 lift along valve rod 5, thus drive valve plate 2 to lift, it is achieved valve
Opening and closing, the effect of valve stem packing ring 8 is to prevent the medium in pipeline from leaking at valve rod 5, due to the existence of valve bonnet seal circle 6,
Make gland ring A7, valve stem packing ring 8, gland ring B9 and dust ring 10 can change when supplying water.
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 (7)
1. can change a gate valve for valve stem packing ring when supplying water, including valve body (1), valve gap (4), valve rod (5), valve stem nut
(3), valve plate (2) and gland (11), it is characterised in that described valve gap (4) is detachably secured at the upper shed of valve body (1),
Described gland (11) is detachably secured at the upper shed of valve gap (4), and described gland (11) bottom is projection, inserts valve gap
(4) upper shed, described gland (11) has gland ring A (7), and gland ring A (7) is pressed in by described gland (11)
On valve gap (4), described valve rod (5) stretches in valve body (1) through gland (11) 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) sets
In valve body (1), being provided with the diameter through hole more than valve rod (5) in the middle of described valve plate (2), described valve rod (5) stretches into valve plate (2)
In through hole, being provided with valve stem packing ring (8) between described valve rod (5) and gland (11), described valve rod (5) top is provided with the gear of projection
Ring (13), described baffle ring (13) has valve bonnet seal circle (6), and valve bonnet seal circle (6) is pressed in valve gap (4) by described baffle ring (13)
On, described valve rod (5) passes valve bonnet seal circle (6), and described valve bonnet seal circle (6) internal diameter is less than valve rod (5) diameter.
The gate valve that can change valve stem packing ring when supplying water the most according to claim 1, it is characterised in that described gland
And between valve gap (4), be additionally provided with gland ring B (9) (11).
The gate valve that can change valve stem packing ring when supplying water the most according to claim 1, it is characterised in that described gland
(11) and be additionally provided with dust ring (10) between valve rod (5), described dust ring (10) is positioned at gland (11) top.
The gate valve that can change valve stem packing ring when supplying water the most according to claim 1, it is characterised in that described valve gap
(4) with bolts with valve body (1).
The gate valve that can change valve stem packing ring when supplying water the most according to claim 1, it is characterised in that described gland
(11) with bolts with valve gap (4).
The gate valve that can change valve stem packing ring when supplying water the most according to claim 1, it is characterised in that described valve body
(1) and it is provided with valve seals between valve gap (4).
The gate valve that can change valve stem packing ring when supplying water the most according to claim 1, it is characterised in that described valve rod
(5) top connects handwheel (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610720123.1A CN106224574A (en) | 2016-08-25 | 2016-08-25 | A kind of gate valve that can change valve stem packing ring when supplying water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610720123.1A CN106224574A (en) | 2016-08-25 | 2016-08-25 | A kind of gate valve that can change valve stem packing ring when supplying water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106224574A true CN106224574A (en) | 2016-12-14 |
Family
ID=57555196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610720123.1A Pending CN106224574A (en) | 2016-08-25 | 2016-08-25 | A kind of gate valve that can change valve stem packing ring when supplying water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106224574A (en) |
-
2016
- 2016-08-25 CN CN201610720123.1A patent/CN106224574A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161214 |