CN205937909U - Novel non -rising -stem gate valve - Google Patents
Novel non -rising -stem gate valve Download PDFInfo
- Publication number
- CN205937909U CN205937909U CN201620859525.5U CN201620859525U CN205937909U CN 205937909 U CN205937909 U CN 205937909U CN 201620859525 U CN201620859525 U CN 201620859525U CN 205937909 U CN205937909 U CN 205937909U
- Authority
- CN
- China
- Prior art keywords
- valve rod
- valve
- seal section
- wall
- pressure 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.)
- Expired - Fee Related
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Abstract
The utility model provides a novel non -rising -stem gate valve, including valve body and valve gap, be equipped with the flashboard in the valve body, be equipped with the valve rod on the flashboard, be equipped with the through -hole that is used for placing the valve rod on the valve gap, the through -hole includes the seal section, the seal section internal diameter is greater than inner diameter of through hole, be equipped with the filler between seal section inner wall and the outer wall of valve rod, still be equipped with the clamping ring between seal section inner wall and the outer wall of valve rod, clamping ring one end is equipped with presses the cover, the pressure is sheathe in and is equipped with the concave station, the valve rod is equipped with the holding ring of realizing valve rod axial positioning with the concave station cooperation. The utility model discloses design the restraint of the sealed of valve rod with axial free degree together, overall structure is small and exquisite, but the primary governor control gland appears leaking and compensate, and long service life rotates in a flexible way laborsaving, sealed reliable, opens when closing the valve rod at the gate valve and only does the rotation and be not axial displacement, and the direction of height size is little.
Description
Technical field
This utility model is related to a kind of gate valve and in particular to a kind of Novel non-rising stem gate valve.
Background technology
Valve is very common in people's daily life, and according to different use occasions, valve mechanism is also ever-changing, and one
As the most important sealing structure of valve internal have two big positions, the sealing of the sealing of valve element and valve body and valve rod and valve gap；Tradition
Gate valve due to the particularity of its opening ways, not only torque to be born also is subjected to axial push-and-pull to its valve rod, opens in gate valve
Open all by way of the screw thread on valve rod is cooperated with handwheel, to pull ram movement it is therefore desirable to do to handwheel with closing
When axial constraint just can ensure that hand wheel rotating, valve rod can move up and down along the screw thread at handwheel center；Traditional gate valve valve gap is in design system
Not only need when making to consider sealing property in addition it is also necessary to the restraining structure of design constraint handwheel axial freedom, thus leading to valve gap
Complicated integral structure, valve whole height increases, and when flashboard is opened, valve rod can raise with flashboard, so needing above valve body
Reserve certain valve handle activity space, so that the gate valve of this kind of structure is not suitable for the occasion of narrow space, valve simultaneously
During open and close, the axially reciprocating of valve rod can make quick reduction of the sealing property between valve rod and valve gap lead to leak, and uses
Life-span and sealing property are had a greatly reduced quality；Also its valve rod of some gate valves is to be fixedly connected with handwheel simultaneously, by valve rod and flashboard spiral shell
The mode of stricture of vagina cooperation realizes open and close, and between this structure valve rod and valve gap, the general 0 shape circle that passes through seals, after O-ring abrasion
The mode generally requiring replacement o circle, to repair, needs during reparation to cut off flow media ability dismounting in pipeline.
Utility model content
Based on the problems referred to above, this utility model purpose is to provide a kind of Novel non-rising stem gate valve, sealed reliable, service life
Long；In gate valve open and close, valve rod only rotates and does not axially move, and short transverse size is little.
For problem above, there is provided following technical scheme：A kind of Novel non-rising stem gate valve, including valve body, on described valve body
It is provided with removable valve gap, in described valve body, is provided with flashboard, described flashboard is provided with valve rod, described valve rod passes through its top of valve gap
It is provided with handwheel, described valve gap is provided with to logical through hole, and described valve rod passes through in through hole；Described through hole includes seal section, institute
State seal section and be located at the side towards handwheel for the through hole, described seal section internal diameter is more than through hole internal diameter, described seal section inwall and valve
It is provided with filler between bar outer wall；It is additionally provided with pressure ring, described pressure ring is arranged at filler between described seal section inwall and valve rod outer wall
Side towards handwheel；Described seal section is provided with, towards one end end of handwheel, the gland contacting for compressing filler with pressure ring,
Described gland is provided with, towards the end face of pressure ring side, the concave station that internal diameter is more than stem diameter；Described valve rod is provided with diameter greater than valve
Shank diameter and the locating ring less than concave station internal diameter, described locating ring is located in concave station and passes through pressure ring and stop to realize valve rod axial direction certainly
By the restriction spent.
In said structure, filler is soft graphite, and pressure ring extrudes soft graphite under the promotion of gland and realizes sealing, simultaneously
The resistance when self-lubricity of soft graphite can rotate to reduce valve rod；The locating ring of valve rod and filler are separated by pressure ring, it is to avoid fixed
Position ring is directly and filler occurs extrusion friction to lead to sealing failure of fillers.
This utility model is further arranged to, and one end that described valve rod is located in valve body is provided with valve rod external screw thread, described lock
Plate is provided with the flashboard female thread with the cooperation of valve rod external screw thread.
This utility model is further arranged to, and is in that gap coordinates between described pressure ring inwall and valve rod outer wall；Described pressure ring
Outer wall and seal section inwall are in that gap coordinates.
This utility model is further arranged to, and seal section is provided with sealing female thread, described pressure towards one end end of handwheel
Put the gland external screw thread being provided with and sealing screw-internal thread fit, described gland and seal section realize the axle of gland by screw thread cooperation
To adjust the sealing of filler to position adjustments.
This utility model is further arranged to, and the axial width H1 of described locating ring is less than the depth H 2 of concave station.
The beneficial effects of the utility model：By the constrained designs of the sealing of valve rod and axial freedom to together with, overall tie
Structure is compact, and leakage can directly adjust gland to make up, long service life, rotates flexibly laborsaving.
Brief description
Fig. 1 is complete section structural representation of the present utility model；
Fig. 2 is valve rod of the present utility model and flashboard structure schematic diagram；
Fig. 3 is the A portion enlarged drawing of this utility model Fig. 1；
Fig. 4 is the explosive view of this utility model Fig. 3.
In figure label implication：10- valve body；20- valve gap；21- through hole；211- seal section；212- seals female thread；22- fills out
Material；23- pressure ring；24- gland；241- concave station；242- gland external screw thread；30- flashboard；301- flashboard female thread；40- valve rod；
401- locating ring；402- valve rod external screw thread；41- handwheel.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is used for this utility model is described, but is not limited to scope of the present utility model.
Referring to figs. 1 to Fig. 4, a kind of Novel non-rising stem gate valve as shown in Figures 1 to 4, including valve body 10, on described valve body 10
It is provided with removable valve gap 20, in described valve body 10, is provided with flashboard 30, described flashboard 30 is provided with valve rod 40, described valve rod 40 is worn
Cross its top of valve gap 20 and be provided with handwheel 41, described valve gap 20 is provided with to logical through hole 21, and described valve rod 40 is worn in through hole 21
Cross；Described through hole 21 includes seal section 211, and described seal section 211 is located at the side towards handwheel 41 for the through hole 21, described seal section
211 internal diameters are more than through hole 21 internal diameter, are provided with filler 22 between described seal section 211 inwall and valve rod 40 outer wall；Described seal section
It is additionally provided with pressure ring 23, described pressure ring 23 is arranged at filler 22 towards the side of handwheel 41 between 211 inwalls and valve rod 40 outer wall；Institute
State seal section 211 and be provided with the gland 24 contacting with pressure ring 23 for compressing 22 fillers, described pressure towards one end end of handwheel 211
Set 24 is provided with, towards the end face of pressure ring 23 side, the concave station 241 that internal diameter is more than valve rod 40 diameter；Described valve rod 40 is provided with diameter
Locating ring 401 more than valve rod 40 diameter and less than concave station 241 internal diameter, described locating ring 401 is located in concave station 241 and passes through to press
Ring 23 stops the restriction realizing valve rod 40 axial freedom.
In said structure, filler 22 be soft graphite, pressure ring 23 extrude under the promotion of gland 24 soft graphite realize close
Envelope, the resistance when self-lubricity of soft graphite can rotate to reduce valve rod 40 simultaneously；Pressure ring 23 by the locating ring 401 of valve rod 40 with
Filler 22 separates, it is to avoid locating ring 401 is directly and filler 22 occurs extrusion friction to lead to filler 22 seal failure.
In the present embodiment, one end that described valve rod 40 is located in valve body 10 is provided with valve rod external screw thread 402, on described flashboard 30
It is provided with the flashboard female thread 301 with valve rod external screw thread 402 cooperation, by coordinating control with flashboard 30 screw thread when described valve rod 40 rotates
The open and close of valve are realized in the movement of check plate 30.
In the present embodiment, it is in that gap coordinates between the inwall of described pressure ring 23 and the outer wall of valve rod 40；Described pressure ring 23
Outer wall is in that gap coordinates with the inwall of seal section 211.
In the present embodiment, seal section 211 is provided with sealing female thread 212, described gland 24 towards one end end of handwheel 41
It is provided with and seals the gland external screw thread 242 of female thread 212 cooperation, described gland 24 and seal section 211 coordinate real by screw thread
The axial location of existing gland 24 adjusts and to adjust the sealing of filler 22.
In the present embodiment, the axial width H1 of described locating ring 401 is less than the depth H 2 of concave station 241D.
The above is only preferred implementation of the present utility model it is noted that common skill for the art
For art personnel, on the premise of without departing from this utility model know-why, some improvement and modification, above-mentioned vacation can also be made
If these improve and modification also should be regarded as protection domain of the present utility model.
Claims (5)
1. a kind of Novel non-rising stem gate valve, including valve body, described valve body is provided with removable valve gap, is provided with lock in described valve body
Plate, described flashboard is provided with valve rod, described valve rod be provided with handwheel through its top of valve gap it is characterised in that：Set on described valve gap
Have to logical through hole, described valve rod passes through in through hole：Described through hole includes seal section, and described seal section is located at through hole towards handss
The side of wheel, described seal section internal diameter is more than through hole internal diameter, is provided with filler between described seal section inwall and valve rod outer wall；Described
It is additionally provided with pressure ring, described pressure ring is arranged at the side towards handwheel for the filler between seal section inwall and valve rod outer wall；Described sealing
One end end of Duan Chaoxiang handwheel is provided with the gland contacting for compressing filler with pressure ring, and described gland is towards the end of pressure ring side
Face is provided with the concave station that internal diameter is more than stem diameter；Described valve rod is provided with diameter greater than stem diameter and determining less than concave station internal diameter
Position ring, described locating ring is located in concave station and is stopped the restriction realizing valve rod axial freedom by pressure ring.
2. a kind of Novel non-rising stem gate valve according to claim 1 it is characterised in that：One end that described valve rod is located in valve body
It is provided with valve rod external screw thread, described flashboard is provided with the flashboard female thread with the cooperation of valve rod external screw thread.
3. a kind of Novel non-rising stem gate valve according to claim 1 it is characterised in that：Described pressure ring inwall and valve rod outer wall it
Between in gap cooperation；Described pressure ring outer wall and seal section inwall are in that gap coordinates.
4. a kind of Novel non-rising stem gate valve according to claim 1 it is characterised in that：Seal section is towards one end end of handwheel
It is provided with sealing female thread, described gland is provided with and seals the gland external screw thread of screw-internal thread fit, described gland is led to seal section
Crossing screw thread coordinates the axial location realizing gland to adjust to adjust the sealing of filler.
5. a kind of Novel non-rising stem gate valve according to claim 1 it is characterised in that：The axial width H1 of described locating ring is little
Depth H 2 in concave station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620859525.5U CN205937909U (en) | 2016-08-04 | 2016-08-04 | Novel non -rising -stem gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620859525.5U CN205937909U (en) | 2016-08-04 | 2016-08-04 | Novel non -rising -stem gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205937909U true CN205937909U (en) | 2017-02-08 |
Family
ID=57923103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620859525.5U Expired - Fee Related CN205937909U (en) | 2016-08-04 | 2016-08-04 | Novel non -rising -stem gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205937909U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114811174A (en) * | 2022-03-09 | 2022-07-29 | 中国船舶重工集团公司第七二五研究所 | Spiral packing pressing sleeve |
-
2016
- 2016-08-04 CN CN201620859525.5U patent/CN205937909U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114811174A (en) * | 2022-03-09 | 2022-07-29 | 中国船舶重工集团公司第七二五研究所 | Spiral packing pressing sleeve |
| CN114811174B (en) * | 2022-03-09 | 2023-09-22 | 中国船舶重工集团公司第七二五研究所 | Spiral packing pressing sleeve |
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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: 20170208 Termination date: 20190804 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |