CN108331927A - A kind of shut-off valve with dual-seal - Google Patents
A kind of shut-off valve with dual-seal Download PDFInfo
- Publication number
- CN108331927A CN108331927A CN201810214534.2A CN201810214534A CN108331927A CN 108331927 A CN108331927 A CN 108331927A CN 201810214534 A CN201810214534 A CN 201810214534A CN 108331927 A CN108331927 A CN 108331927A
- Authority
- CN
- China
- Prior art keywords
- valve
- shut
- dual
- seal
- spool
- 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
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 238000004891 communication Methods 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims description 16
- 239000000945 filler Substances 0.000 claims description 12
- 230000009977 dual effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 241001672694 Citrus reticulata Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
-
- 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)
- Mechanically-Actuated Valves (AREA)
Abstract
The present invention relates to a kind of shut-off valves with dual-seal, including valve body, valve deck, valve rod and spool, the valve deck is detachably connected on valve body, the valve rod enters in valve body across valve deck and is rotatablely connected with valve deck, the spool is connected to the bottom of valve rod, it is provided with communication port in the valve body, it is provided with inlet on the left of the communication port, right side is provided with liquid outlet, the liquid outlet upper inside is provided with flapper, the driving gear rotated coaxially with valve rod is provided on valve rod above the spool, the driving gear drives flapper to move up and down by a transmission mechanism, the flapper moves up and down the opening and closing that may be implemented to liquid outlet.The present invention can realize that the dual of shut-off valve improves the cutoff function of shut-off valve by function simultaneously by spool and flapper, extend the service life of shut-off valve, without frequently replacing spool, improve working efficiency.
Description
Technical field
The present invention relates to shut-off valve field more particularly to a kind of shut-off valves with dual-seal.
Background technology
Shut-off valve is also known as pipe valve valve, belongs to forced seal formula valve, and relatively durable, Lift is little, and manufacture is easy, dimension
It repaiies conveniently, is applicable not only to mesolow, and be suitable for high pressure.The closure principle of shut-off valve is to lean on valve rod pressure, make spool
Sealing surface and the sealing surface of valve body communication port fit closely, and prevent flow of media.
Traditional shut-off valve when in use, when spool is worn because of the erosion of fluid media (medium), may result in spool
Communication port can not be blocked, lead to the generation of leakage, this just needs the artificial spool frequently more renewed, leads to working efficiency
It reduces.
Invention content
The invention solves the above technical problems, and flow of media barrier can be carried out by spool and flapper by providing one kind
The shut-off valve with dual-seal.
The technical solution adopted by the present invention to solve the technical problems is：A kind of shut-off valve with dual-seal, packet
Valve body, valve deck, valve rod and spool are included, the valve deck is detachably connected on valve body, and the valve rod enters across valve deck in valve body
And be rotatablely connected with valve deck, the spool is connected to the bottom of valve rod, communication port is provided in the valve body, the communication port
Left side is provided with inlet, and right side is provided with liquid outlet, and the liquid outlet upper inside is provided with flapper, on the spool
The driving gear rotated coaxially with valve rod is provided on the valve rod of side, the driving gear drives active catch by a transmission mechanism
Plate moves up and down, and the flapper moves up and down the opening and closing that may be implemented to liquid outlet.
Further, it is provided with filler between the valve deck top and valve rod.
Further, it is provided with hold-down grid above the filler, and is to be threadedly coupled between valve rod and hold-down grid.
Further, the valve deck is internally provided with sealing ring, and the sealing ring is on the inner wall of valve deck.
Further, the spool is up big and down small truncated conical shape, and is movably arranged on valve rod from bottom to up using screw
Bottom.
Further, the lower outside of the spool is arranged with sealing shroud.
Further, the transmission mechanism includes transmission gear and the ball-screw that is rotated coaxially with transmission gear, the biography
Moving gear is engaged with driving gear, and the flapper is connected on the ball nut of ball-screw.
Further, caulking groove, the flapper are provided on inner wall on the downside of the opposite liquid outlet in the flapper bottom
Bottom can be embedded in caulking groove.
Further, the top of the valve body and the bottom of valve deck are connected by screw bolts, top and the filler pressure of the valve deck
It is connected by screw bolts outside plate.
Further, the top of the valve rod is provided with the convex gear being integrated with valve rod, the external engagement of the convex gear
It is arranged with a wheel disc, the outside of the wheel disc is connected with grip ring by connecting rod；
Cover board is stamped in turning over for the wheel disc, and the bottom of the cover board is provided with the annular filler rod of embedded wheel disc.
The beneficial effects of the invention are as follows：The present invention is due to being provided with flapper, during valve rod rotates down, no
Can only spool be pushed to block communication port, and follow the driving gear of valve rod rotation while rotating, the rotation of driving gear
Drive driven gear rotation, the rotation of driven gear that can drive ball screw turns, to realize moving down for flapper, make
On the downside of the bottom insertion liquid outlet of flapper in the caulking groove of inner wall, liquid outlet is closed, realizes the dual by work(of shut-off valve
Can, when spool is worn, flapper can further prevent the flowing of medium, improve the cutoff function of shut-off valve, prolong
The service life of long shut-off valve improves working efficiency without frequently replacing spool.
Description of the drawings
The following further describes the present invention with reference to the drawings.
Structure chart when Fig. 1 is a kind of connection of shut-off valve with dual-seal of the present invention；
Fig. 2 is the enlarged drawing of part A in Fig. 1；
Fig. 3 is the enlarged drawing of part B in Fig. 1；
Fig. 4 is the enlarged drawing of C portion in Fig. 1；
Structure chart when Fig. 5 is a kind of closure of shut-off valve with dual-seal of the present invention；
Fig. 6 is the enlarged drawing of the parts D in Fig. 5；
Fig. 7 is a kind of valve rod of the shut-off valve with dual-seal of the present invention and wheel disc, the connection figure of grip ring；
In figure：1. valve body, 2. valve decks, 3. valve rods, 4. spools, 5. communication ports, 6. inlets, 7. liquid outlets, 8. active catchs
Plate, 9. driving gears, 10. fillers, 11. hold-down grids, 12. sealing rings, 13. screws, 14. sealing shrouds, 15. transmission gears, 16.
Ball-screw, 17. ball nuts, 18. caulking grooves, 19. bolts, 20. convex gears, 21. wheel discs, 22. connecting rods, 23. grip rings, 24. lids
Plate, 25. annular filler rods.
Specific implementation mode
Presently in connection with attached drawing, the present invention is further illustrated.These attached drawings are simplified schematic diagram only with signal side
Formula illustrates the basic structure of the present invention, therefore it only shows the composition relevant to the invention.
As shown in figs. 1-7, a kind of shut-off valve with dual-seal, including valve body 1, valve deck 2, valve rod 3 and spool 4,
The valve deck 2 is detachably connected on valve body 1, and the valve rod 3 passes through valve deck 2 to enter in valve body 1 and be rotatablely connected with valve deck 2,
The spool 4 is connected to the bottom of valve rod 3, is provided with communication port 5 in the valve body 1, the left side of the communication port 5 be provided with into
Liquid mouth 6, right side are provided with liquid outlet 7, and 7 upper inside of the liquid outlet is provided with flapper 8, the valve of 4 top of the spool
The driving gear 9 rotated coaxially with valve rod 3 is provided on bar 3, the driving gear 9 drives flapper by a transmission mechanism
8 move up and down, and the flapper 8 moves up and down the opening and closing that may be implemented to liquid outlet 7.
It is provided with filler 10 between 2 top of the valve deck and valve rod 3.For realizing the sealing between valve rod and valve deck.
The top of the filler 10 is provided with hold-down grid 11, and is to be threadedly coupled between valve rod 3 and hold-down grid 11.It is logical
Rotation of the valve rod 3 between hold-down grid 11 is crossed, moving up and down for valve rod 3 may be implemented, spool 4 is moved up and down to reach
Purpose reduces production cost without in the additionally mounted valve stem nut in the top of valve rod 3, reducing the parts of valve.
Specifically, valve rod 3 will not make its screwed position enter packing area during rotation, avoid influencing close
Seal effect.
The valve deck 2 is internally provided with sealing ring 12, and the sealing ring 12 is on the inner wall of valve deck 2.Further carry
The sealing effect of high shut-off valve.
The spool 4 is up big and down small truncated conical shape, and is movably arranged on the bottom of valve rod 3 from bottom to up using screw 13
Portion.The spool 4 of truncated conical shape can increase the leakproofness of communication port, and the spool 4 being flexibly connected is easy to repair and replaces, and uses
It is more convenient.
The lower outside of the spool 4 is arranged with sealing shroud 14.First, the leakproofness of communication port 5 can be increased, second is that energy
It is enough that spool 4 is played a certain protective role, the damaged condition of spool 4 is reduced, the service life of spool 4 is extended.
The transmission mechanism includes transmission gear 15 and the ball-screw rotated coaxially with transmission gear 15 16, the transmission
Gear 15 is engaged with driving gear 9, and the flapper 8 is connected on the ball nut 17 of ball-screw 16.Utilize driving tooth
Wheel 9 band nutating gears 15 rotate, transmission gear 15 drive ball-screw 16 rotate, to realize flapper 8 on move down
It is dynamic.
It is provided with caulking groove 18 on the opposite 7 downside inner wall of liquid outlet in 8 bottom of the flapper, the flapper 8
Bottom can be embedded in caulking groove 18.Make flapper 8 more connect with the inside of liquid outlet 7 more to agree with, to increase liquid outlet 7
Sealing performance.
The top of the valve body 1 is connect with the bottom of valve deck 2 using bolt 19, the top of the valve deck 2 and hold-down grid
11 outsides are connected using bolt 19.It can be in order to the dismounting of valve and the replacement of internal element by the connection of bolt 19.
The top of the valve rod 3 is provided with the convex gear 20 being integrated with valve rod 3, the external engagement set of the convex gear 20
Equipped with a wheel disc 21, the outside of the wheel disc 21 is connected with grip ring 23 by connecting rod 22；23 rotating wheel disk 21 of grip ring is held, to
It is rotated with ovable valve stem 3 by convex gear 20, operation more comfortable labor-saving.
Cover board 24 is stamped in turning over for the wheel disc 21, and the bottom of the cover board 24 is provided with the annular filler rod of embedded wheel disc 21
25.The setting of cover board 24 can increase the aesthetics that wheel disc 21 is connect with valve rod 3, and can prevent dust from entering convex gear 20
In the gap of wheel disc 21, the spoilage of convex gear 20 and wheel disc 21 is reduced.
When carrying out barrier flow of media using the shut-off valve, grip ring 23, grip ring band runner disc 21 and convex gear are rotated
20 rotations, convex gear 20 are rotated with ovable valve stem 3, and the rotation of valve rod 3 makes it move down, and spool 4 is pushed to move down, and make spool 4 into becoming a mandarin
Port 5 obstructs inlet 6 and liquid outlet 7, while the rotation of valve rod 3 moves down, 9 co-axial rotation of driving gear,
The rotation band nutating gear 15 of driving gear 9 rotates, and transmission gear 15 drives ball-screw 16 to rotate, and ball-screw 16 turns
It is dynamic that flapper 8 is driven to move down, until embedded caulking groove 18, makes flapper 8 further realize the closing to liquid outlet 7, into one
Step improves the cutoff performance of valve body.
When connection, as long as rotating backward grip ring 23 according to above-mentioned steps, moved up with movable valve plug 4 by valve rod 3, and successively
Moving up for flapper 8 is realized by valve rod 3, driving gear 9, transmission gear 15 and ball-screw 16, makes liquid outlet 7 and feed liquor
Mouth 6 communicates.
Compared with prior art, the present invention, can not only during valve rod rotates down due to being provided with flapper
Enough spool is pushed to block communication port, and follow the driving gear of valve rod rotation while rotating, the rotation of driving gear drives
Driven gear rotates, and the rotation of driven gear can drive ball screw turns, to realize moving down for flapper, make activity
On the downside of the bottom insertion liquid outlet of baffle in the caulking groove of inner wall, liquid outlet is closed, realizes the dual by function of shut-off valve, when
When spool is worn, flapper can further prevent the flowing of medium, improve the cutoff function of shut-off valve, extend cut-off
The service life of valve improves working efficiency without frequently replacing spool.
It is enlightenment with above-mentioned desirable embodiment according to the present invention, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to determine its technical scope according to right.
Claims (10)
1. a kind of shut-off valve with dual-seal, it is characterised in that：Including valve body, valve deck, valve rod and spool, the valve deck
It is detachably connected on valve body, the valve rod enters in valve body across valve deck and is rotatablely connected with valve deck, and the spool is connected to
The bottom of valve rod is provided with communication port in the valve body, inlet is provided on the left of the communication port, right side is provided with out liquid
Mouthful, the liquid outlet upper inside is provided with flapper, is provided on the valve rod above the spool and is rotated coaxially with valve rod
Driving gear, the driving gear by a transmission mechanism drive flapper move up and down, the flapper up and down
The mobile opening and closing that may be implemented to liquid outlet.
2. the shut-off valve according to claim 1 with dual-seal, it is characterised in that：The valve deck top and valve rod
Between be provided with filler.
3. the shut-off valve according to claim 2 with dual-seal, it is characterised in that：The top of the filler is arranged
There is hold-down grid, and is to be threadedly coupled between valve rod and hold-down grid.
4. the shut-off valve according to claim 1 with dual-seal, it is characterised in that：The inside of the valve deck is arranged
There is sealing ring, the sealing ring is on the inner wall of valve deck.
5. the shut-off valve according to claim 1 with dual-seal, it is characterised in that：The spool is up big and down small
Truncated conical shape, and be movably arranged on using screw the bottom of valve rod from bottom to up.
6. the shut-off valve according to claim 5 with dual-seal, it is characterised in that：The lower outside of the spool
It is arranged with sealing shroud.
7. the shut-off valve according to claim 1 with dual-seal, it is characterised in that：The transmission mechanism includes passing
Moving gear and the ball-screw rotated coaxially with transmission gear, the transmission gear are engaged with driving gear, the flapper
It is connected on the ball nut of ball-screw.
8. the shut-off valve according to claim 1 with dual-seal, it is characterised in that：Flapper bottom phase
To liquid outlet on the downside of be provided with caulking groove on inner wall, the bottom of the flapper can be embedded in caulking groove.
9. the shut-off valve according to claim 3 with dual-seal, it is characterised in that：The top of the valve body and valve
The bottom of lid is connected by screw bolts, and is connected by screw bolts outside the top of the valve deck and hold-down grid.
10. the shut-off valve according to claim 1 with dual-seal, it is characterised in that：The top of the valve rod is set
It is equipped with the convex gear being integrated with valve rod, the external engagement of the convex gear is arranged with a wheel disc, passes through on the outside of the wheel disc
Connecting rod is connected with grip ring；
Cover board is stamped in turning over for the wheel disc, and the bottom of the cover board is provided with the annular filler rod of embedded wheel disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810214534.2A CN108331927A (en) | 2018-03-15 | 2018-03-15 | A kind of shut-off valve with dual-seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810214534.2A CN108331927A (en) | 2018-03-15 | 2018-03-15 | A kind of shut-off valve with dual-seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108331927A true CN108331927A (en) | 2018-07-27 |
Family
ID=62930981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810214534.2A Pending CN108331927A (en) | 2018-03-15 | 2018-03-15 | A kind of shut-off valve with dual-seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108331927A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730540A (en) * | 2018-08-23 | 2018-11-02 | 江苏华太电力仪表有限公司 | Instrument block valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08233150A (en) * | 1995-03-01 | 1996-09-10 | Toshiba Corp | Main stream separation valve |
| CN202790566U (en) * | 2012-09-19 | 2013-03-13 | 佛山市海天(高明)调味食品有限公司 | Frequently opened and closed stop valve |
| CN205618680U (en) * | 2016-05-16 | 2016-10-05 | 浙江纽沃阀门有限公司 | Stop valve |
| CN107387862A (en) * | 2017-09-13 | 2017-11-24 | 潍坊浩鑫铜业有限公司 | A kind of anti-leak ends copper valve |
| CN208057975U (en) * | 2018-03-15 | 2018-11-06 | 盐城申宇科技服务有限公司 | A kind of shut-off valve with dual-seal |
-
2018
- 2018-03-15 CN CN201810214534.2A patent/CN108331927A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08233150A (en) * | 1995-03-01 | 1996-09-10 | Toshiba Corp | Main stream separation valve |
| CN202790566U (en) * | 2012-09-19 | 2013-03-13 | 佛山市海天(高明)调味食品有限公司 | Frequently opened and closed stop valve |
| CN205618680U (en) * | 2016-05-16 | 2016-10-05 | 浙江纽沃阀门有限公司 | Stop valve |
| CN107387862A (en) * | 2017-09-13 | 2017-11-24 | 潍坊浩鑫铜业有限公司 | A kind of anti-leak ends copper valve |
| CN208057975U (en) * | 2018-03-15 | 2018-11-06 | 盐城申宇科技服务有限公司 | A kind of shut-off valve with dual-seal |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730540A (en) * | 2018-08-23 | 2018-11-02 | 江苏华太电力仪表有限公司 | Instrument block valve |
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