CN208057975U - A kind of shut-off valve with dual-seal - Google Patents
A kind of shut-off valve with dual-seal Download PDFInfo
- Publication number
- CN208057975U CN208057975U CN201820359635.4U CN201820359635U CN208057975U CN 208057975 U CN208057975 U CN 208057975U CN 201820359635 U CN201820359635 U CN 201820359635U CN 208057975 U CN208057975 U CN 208057975U
- 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.)
- Expired - Fee Related
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Abstract
The utility model is related 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 utility model 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 utility model is related 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.
Utility model content
The utility model will solve the above technical problem, and flow of media can be carried out by spool and flapper by providing one kind
The shut-off valve with dual-seal of barrier.
Technical solution adopted by the utility model to solve its technical problems is：A kind of cut-off with dual-seal
Valve, including valve body, valve deck, valve rod and spool, the valve deck are detachably connected on valve body, and the valve rod enters valve across valve deck
It is rotatablely connected in vivo and with valve deck, the spool is connected to the bottom of valve rod, communication port, the circulation are provided in the valve body
The left side of mouth is provided with inlet, and right side is provided with liquid outlet, and the liquid outlet upper inside is provided with flapper, the valve
The driving gear rotated coaxially with valve rod is provided on valve rod above core, the driving gear is driven by a transmission mechanism and lived
Dynamic baffle 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 utility model has the beneficial effects that：The utility model is rotated down due to being provided with flapper in valve rod
In the process, spool can not only be pushed to block communication port, and follows the driving gear of valve rod rotation while rotates, driving tooth
The rotation of wheel drives driven gear rotation, and the rotation of driven gear can drive ball screw turns, to realize flapper
Move down, so that the bottom of flapper is embedded on the downside of liquid outlet in the caulking groove of inner wall, liquid outlet closed, realize the double of shut-off valve
Weight is by function, and when spool is worn, flapper can further prevent the flowing of medium, improve the cut-off of shut-off valve
Function extends the service life of shut-off valve, without frequently replacing spool, improves working efficiency.
Description of the drawings
The utility model is further illustrated below in conjunction with the accompanying drawings.
Structure chart when Fig. 1 is a kind of connection of shut-off valve with dual-seal of the utility model；
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 utility model；
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 utility model 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
The utility model is further described presently in connection with attached drawing.These attached drawings are simplified schematic diagram only to show
Meaning mode illustrates the basic structure of the utility model, therefore it only shows composition related with the utility model.
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 utility model 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.
It is enlightenment, through the above description, related work people with the above-mentioned desirable embodiment according to the utility model
Member can carry out various changes and amendments in the range of without departing from this item utility model technological thought completely.This item is real
It is not limited to the contents of the specification with novel technical scope, it is necessary to which its technology is determined according to right
Property range.
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 |
|---|---|---|---|
| CN201820359635.4U CN208057975U (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 |
|---|---|---|---|
| CN201820359635.4U CN208057975U (en) | 2018-03-15 | 2018-03-15 | A kind of shut-off valve with dual-seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208057975U true CN208057975U (en) | 2018-11-06 |
Family
ID=63988846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820359635.4U Expired - Fee Related CN208057975U (en) | 2018-03-15 | 2018-03-15 | A kind of shut-off valve with dual-seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208057975U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108331927A (en) * | 2018-03-15 | 2018-07-27 | 盐城申宇科技服务有限公司 | A kind of shut-off valve with dual-seal |
| CN109944953A (en) * | 2019-03-15 | 2019-06-28 | 汉工阀门股份有限公司 | A kind of high voltage direct current formula shut-off valve |
-
2018
- 2018-03-15 CN CN201820359635.4U patent/CN208057975U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108331927A (en) * | 2018-03-15 | 2018-07-27 | 盐城申宇科技服务有限公司 | A kind of shut-off valve with dual-seal |
| CN109944953A (en) * | 2019-03-15 | 2019-06-28 | 汉工阀门股份有限公司 | A kind of high voltage direct current formula shut-off valve |
| CN109944953B (en) * | 2019-03-15 | 2020-03-31 | 汉工阀门股份有限公司 | High-pressure straight-flow stop valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181106 Termination date: 20200315 |