CN108980388A - The driving structure of flashboard in gate valve - Google Patents
The driving structure of flashboard in gate valve Download PDFInfo
- Publication number
- CN108980388A CN108980388A CN201811192756.5A CN201811192756A CN108980388A CN 108980388 A CN108980388 A CN 108980388A CN 201811192756 A CN201811192756 A CN 201811192756A CN 108980388 A CN108980388 A CN 108980388A
- Authority
- CN
- China
- Prior art keywords
- valve
- steel ball
- flashboard
- valve plate
- valve seat
- 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.)
- Withdrawn
Links
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
- F16K3/02—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
- F16K3/0218—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 with only one sealing face
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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
-
- 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
- F16K3/16—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 with special arrangements for separating the sealing faces or for pressing them together
- F16K3/18—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 with special arrangements for separating the sealing faces or for pressing them together by movement of the closure members
-
- 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
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The driving structure of flashboard in a kind of gate valve, it includes valve rod (5), flashboard (3), valve rod is fixedly connected with a connecting column (9), the corner hole (4) of Γ shape is equipped in connecting column, first steel ball (11) and the second steel ball (12) are housed in corner hole, first steel ball upper half spherical surface can be with the lower half sphere-contact of the second steel ball, vertical shaft (6) are fixed on the inner wall of valve body (1) lower part of gate valve, when gate valve is in close state, vertical shaft resists the first steel ball, first steel ball resists the second steel ball, the right side exposing corner hole of second steel ball, which resists valve plate, is close to valve plate with valve seat (2), the contact surface of valve plate and valve seat is vertical plane.The contact surface of valve plate and valve seat is all vertical plane rather than inclined-plane, so that the processing of valve plate and valve seat becomes easy, the relative positional accuracy between valve plate and valve seat is easily controllable；When valve plate or valve seat are worn, as long as make vertical shaft tight against the first worn steel ball amount as long as can be compensated, keep sealing performance.
Description
Technical field
The present invention relates to a kind of driving structures of flashboard in gate valve, suitable for the gate valve of single disc type.
Background technique
The structure of single disc type gate valve generally comprises valve body, valve seat, valve plate, and the both ends of valve body are connecting tube, wherein one connects
The inner end of adapter tube is valve seat, and the contact surface of valve plate and valve seat is wedge shape, and valve plate can move up and down, when valve plate move down it is complete with valve seat
Gate valve is closed when contact, and when valve plate, which is moved up, to be separated with valve seat, gate valve is opened.Processing request of this structure to flashboard and valve seat
And matching requirements are higher, sealing performance when slightly error gate valve is closed is not being met；In addition valve seat or valve plate are worn
Afterwards, the sealing performance of gate valve can decline, and the reparation of sealing performance is relatively difficult.
Summary of the invention
In view of the deficiencies of the prior art, the present invention proposes a kind of driving structure of flashboard in gate valve, the driving structure, manufacture
The difficulty of technique is low, can be reliably achieved the sealing performance of gate valve, can compensate the abrasion of valve seat or valve plate in use, make
Gate valve keeps sealing performance.
The technical scheme is that in a kind of gate valve flashboard driving structure comprising valve rod 5, flashboard 3, feature
It is that valve rod is fixedly connected with a connecting column 9, the corner hole 4 of Γ shape is equipped in connecting column, the vertical position in corner hole is equipped with the
One steel ball 11, the horizontal position in corner hole are equipped with the second steel ball 12, and the first steel ball upper half spherical surface can be with the lower half of the second steel ball
The lower part of sphere-contact, the vertical position in corner hole is equipped with retaining ring 8, fixed on the inner wall of 1 lower part of valve body of gate valve
Equipped with vertical shaft 6, the inner circle of retaining ring can cover on vertical shaft, extend a bulge loop 10 on the left side of flashboard, and bulge loop is covered even
The right end for connecing column extends a flange 14 in the left end of connecting column, multiple pulling force is symmetrically connected between flange and flashboard
Spring 13；When gate valve is in close state, vertical shaft resists the first steel ball, and the first steel ball resists the second steel ball, the second steel ball
Right side exposing corner hole, which resists valve plate, is close to valve plate with valve seat 2, and the contact surface of valve plate and valve seat is vertical plane.
In gate valve shutoff operation, vertical shaft is put in from retaining ring, and vertical shaft resists the first steel ball, and the first steel ball resists second
Steel ball, the second steel ball, which resists valve plate, is close to valve plate with valve seat 2, realizes reliable close.The contact surface of valve plate and valve seat is all perpendicular
Face directly rather than inclined-plane so that the processing of valve plate and valve seat becomes easy, the relative positional accuracy between valve plate and valve seat is easy to
Control；When valve plate or valve seat are worn, as long as make vertical shaft tight against the first worn steel ball amount as long as can be compensated, keep leakproofness
Energy；When abrasion loss is larger, the reparation of valve plate and valve seat is also easier.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the portion the C enlarged drawing of Fig. 1.
Attached drawing mark respectively indicates: 1- valve body, 2- valve seat, 3- valve plate, 4- corner hole, 5- valve rod, 6- vertical shaft, 7- heading
Bar, 8- retaining ring, 9- connecting column, 10- bulge loop, the first steel ball of 11-, the second steel ball of 12-, 13- tension spring, 14- flange, 15-
Flexible sealing face, 16- valve deck, 17- valve rod driving device.
Specific embodiment
Now in conjunction with Detailed description of the invention a specific embodiment of the invention.
The driving structure of flashboard in a kind of gate valve comprising valve rod 5, flashboard 3, valve rod are fixedly connected with a connecting column 9, even
The corner hole 4 that Γ shape is equipped in column is connect, the vertical position cooperation in corner hole is equipped with the first steel ball 11, the horizontal part in corner hole
Position cooperation is equipped with the second steel ball 12, and the first steel ball is equal with the diameter of the second steel ball, and the first steel ball upper half spherical surface can be with the second steel
The lower part of the lower half sphere-contact of ball, the vertical position in corner hole is equipped with retaining ring 8, and the effect of retaining ring is to prevent first
Steel ball is from preventing from falling down in corner hole.
Vertical shaft 6, the inner circle phase of the outer circle and retaining ring on vertical shaft top are fixed on the inner wall of 1 lower part of valve body of gate valve
Cooperation, vertical shaft are used to push up the first steel ball.As an improvement the top variable diameter in vertical shaft forms heading bar 7, the outer circle for bar of heading a ball
It is matched with the inner circle of retaining ring.
Extending a bulge loop 10 on the left side centre of flashboard, bulge loop ordinatedly covers the right end in connecting column,
A flange 14 is extended in the left end of connecting column, and multiple tension springs 13, pulling force bullet are symmetrically connected between flange and flashboard
Spring is located at flange and flashboard edge, and flashboard can move left and right on connecting column, but flashboard cannot be detached from connecting column.
It is stretched out from valve deck 16 to the valve stem seal, is equipped with valve rod driving device 17 in the top of valve deck, valve rod is only
It can move up and down.When closing gate valve, valve rod drives connecting column to drop to certain position, and vertical shaft resists the first steel ball, the first steel
The upper half spherical surface of ball resists the lower half spherical surface of the second steel ball, so that the right side of the second steel ball is exposed corner hole, resisting valve plate makes valve plate
It is close to valve seat 2, the contact surface of valve plate and valve seat is vertical plane.
To further increase sealing effect, the settable flexible sealing face 15 between valve plate and the contact surface of valve seat is flexible
Sealing surface may be provided on valve plate, may also set up on valve seat, since valve plate and valve seat are vertical plane, flexible sealing face setting side
Just.
When gate valve is in the open state, vertical shaft is disengaged with the first steel ball, and tension spring withdraws valve plate, at this time valve
0.1 millimeter of generation or so of gap of plate and valve seat.
When valve plate or valve seat are worn, as long as make vertical shaft tight against the first worn steel ball amount as long as can be compensated, i.e. valve rod
It is suitably moved down in original closed position.
Claims (2)
1. the driving structure of flashboard in a kind of gate valve comprising valve rod (5), flashboard (3), characterized in that valve rod and a connecting column
(9) it is fixedly connected, the corner hole (4) of Γ shape is equipped in connecting column, the vertical position in corner hole is equipped with the first steel ball (11), turns
Horizontal position in corner apertures is equipped with the second steel ball (12), the first steel ball upper half spherical surface can with the lower half sphere-contact of the second steel ball,
The lower part at the vertical position in corner hole is equipped with retaining ring (8), is fixed on the inner wall of valve body (1) lower part of gate valve vertical
Axis (6), the inner circle of retaining ring are matched with the outer circle of vertical shaft, extend a bulge loop (10), bulge loop set on the left side of flashboard
In the right end of connecting column, extends a flange (14) in the left end of connecting column, be symmetrically connected between flange and flashboard more
A tension spring (13)；When gate valve is in close state, vertical shaft resists the first steel ball, and the first steel ball resists the second steel ball, the
The right side exposing corner hole of two steel balls, which resists valve plate, is close to valve plate with valve seat (2), and the contact surface of valve plate and valve seat is vertical plane.
2. the driving structure of flashboard in gate valve according to claim 1, characterized in that be equipped with flexible sealing face on valve seat
(15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811192756.5A CN108980388A (en) | 2018-10-13 | 2018-10-13 | The driving structure of flashboard in gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811192756.5A CN108980388A (en) | 2018-10-13 | 2018-10-13 | The driving structure of flashboard in gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108980388A true CN108980388A (en) | 2018-12-11 |
Family
ID=64543598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811192756.5A Withdrawn CN108980388A (en) | 2018-10-13 | 2018-10-13 | The driving structure of flashboard in gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108980388A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681655A (en) * | 2019-01-22 | 2019-04-26 | 广州市沙唯士电子科技有限公司 | A kind of gate valve of the good seal performance for natural gas line |
| CN112833208A (en) * | 2021-01-07 | 2021-05-25 | 上海精测半导体技术有限公司 | Vacuum valve |
-
2018
- 2018-10-13 CN CN201811192756.5A patent/CN108980388A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681655A (en) * | 2019-01-22 | 2019-04-26 | 广州市沙唯士电子科技有限公司 | A kind of gate valve of the good seal performance for natural gas line |
| CN112833208A (en) * | 2021-01-07 | 2021-05-25 | 上海精测半导体技术有限公司 | Vacuum valve |
| CN112833208B (en) * | 2021-01-07 | 2023-02-17 | 上海精测半导体技术有限公司 | Vacuum valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181211 |
|
| WW01 | Invention patent application withdrawn after publication |