CN208123478U - A kind of flexible shut-off valve of rotation - Google Patents
A kind of flexible shut-off valve of rotation Download PDFInfo
- Publication number
- CN208123478U CN208123478U CN201820547687.4U CN201820547687U CN208123478U CN 208123478 U CN208123478 U CN 208123478U CN 201820547687 U CN201820547687 U CN 201820547687U CN 208123478 U CN208123478 U CN 208123478U
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- Prior art keywords
- valve
- gear
- screw
- deck
- bolt
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Abstract
The utility model relates to a kind of flexible shut-off valves of rotation, including valve body, valve deck, valve rod, spool and handwheel, telescopic protective cover is provided with above the valve body, the valve rod passes through valve deck and enters valve body, and the junction top of valve rod and valve deck is provided with stuffing-box, filler is filled in the stuffing-box, the top of the filler is provided with gland, the screw that multiple bottom ends are connected at the top of valve deck is evenly arranged on the gland, rotate gear is fixedly installed at the top of the screw, the outside of each rotate gear is connected by driving chain, the side of the gland is provided with extension, the bolt connecting with valve deck is provided on the extension, the bolt is connected by transmission mechanism with the transmission gear close to bolt.The degree that the utility model can be such that each screw turns keeps identical, is not in the inclined situation of pressure to guarantee the steady of gland installation, the rotation for avoiding valve rod is not flexible.
Description
Technical field
The utility model relates to shut-off valve field more particularly to a kind of flexible shut-off valves of rotation.
Background technique
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 repairs 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 is during assembly, since gland is fixed on valve deck by the bolt of side
, it be easy to cause the pressure of gland inclined during fixation, to influence the rotation of valve rod when using shut-off valve, make
With being inconvenient, although there is the gland of two bolts of setting now, two bolts are separated from each other, the journey tightened
Degree, which cannot achieve, accurately to be controlled, so that it be made to be consistent, still will appear the above problem.In addition valve rod and its surface
Situations such as screw thread is often exposed in air, is easy to be stained with dust, it is made to generate corrosion, causes the damage of valve rod, influences to end
The use of valve.
Utility model content
The utility model will solve the above technical problem, it is steady provide a kind of guarantee gland installation, it is ensured that valve rod
The flexible shut-off valve of the rotation of normal work.
Technical solution adopted by the utility model to solve its technical problems is：A kind of flexible shut-off valve of rotation, including
Valve body, valve deck, valve rod, spool and handwheel are provided with telescopic protective cover, the bottom of the protective cover above the valve body
Inside is movably connected in the outside of valve deck, and the top of the protective cover is rotatably connected on the bottom of handwheel, and the valve rod passes through valve
Lid enters valve body, and the junction top of valve rod and valve deck is provided with stuffing-box, and filler is filled in the stuffing-box, described to fill out
The top of material is provided with gland, and the screw that multiple bottom ends are connected at the top of valve deck is evenly arranged on the gland,
Rotate gear is fixedly installed at the top of the screw, the outside of each rotate gear is connected by driving chain, described
The side of gland is provided with extension, and the bolt connecting with valve deck is provided on the extension, and the bolt passes through biography
Motivation structure is connected with the transmission gear close to bolt.
Further, sealing ring is provided between the valve deck and valve body, and the outside of the two is bolted by connection；
The bottom of valve rod is arranged in the spool, and the top of valve rod is arranged in the handwheel；
Medium channel is provided in the valve body.
Further, the transmission mechanism includes master gear and from gear, and is connected to master gear and between gear
Chain, the master gear are arranged at the top of the shank of bolt of bolt, the transmission gear that bolt is positioned close to from gear it is upper
Side.
Further, the bolt with, uniformly to be threadedly coupled, and its bottom end is across valve deck company between extension and valve deck
It is connected to nut.
Further, valve stem nut is provided with above the valve deck, one end of the valve stem nut is fixed on the top of valve deck
Portion, the valve rod pass through valve stem nut and are to be threadedly coupled with valve stem nut.
Further, the protective cover includes upper cover and lower cover, and the top of valve stem nut is arranged at the top of the lower cover,
Bottom is to be threadedly coupled with the outside of valve deck；
On the outside of the valve rod of the upper cover being arranged in above lower cover, and it is retractable structure.
Further, connection ring is provided at the top of the upper cover, the bottom inside of the handwheel is evenly arranged with annular ball
Slot, it is described annular ball groove in be evenly arranged with it is multiple turn ball, the bottom for turning ball extends handwheel and is provided with connecting rod, described
The bottom of connecting rod is passed through connection ring and is fixed using attachment screw, and the bottom radius of the attachment screw is greater than the half of connecting rod
Diameter.
Further, the spool includes cartridge cover and insert body, and the cartridge cover is connected to valve rod by fixing screws
The outside of bottom, the insert body are threadedly attached in the outside of cartridge cover；
It is provided with downward horizontal bench on the side wall of the insert body, is provided with seal spool in the horizontal bench
Face；
The bottom of the insert body is arc-shaped.
Further, rack is provided at the top of the valve rod, being provided centrally with for the handwheel is matched with rack
Gear grooved, the gear grooved cover be provided at the top of the outside of rack, the rack the fixed gear grooved of handwheel screw and
Rack, the radius of the handwheel screw head are greater than the radius of gear grooved circumscribed circle.
Further, screw hole is provided at the top of the corresponding valve deck of the screw, the bottom end of the screw passes through filler pressure
Lid is threadedly coupled with screw hole.
The utility model has the beneficial effects that：The utility model on gland due to being provided with multiple screws, and spiral shell
Bolt can drive the transmission gear above each screw by transmission mechanism while rotate, the degree that each screw can be made to turn
It keeps identical, is not in the inclined situation of pressure to guarantee the steady of gland installation, the rotation for avoiding valve rod is ineffective
It is living, improve the practicability of shut-off valve.Due to being provided with protective cover on valve deck, can be prevented by protective cover valve rod, valve stem nut,
And junction of valve stem nut and valve rod etc. dew it is naked avoid the corrosion and damage of above-mentioned all parts in air, thus
The using effect for improving shut-off valve, prolongs its service life.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawing.
Structure chart when Fig. 1 is a kind of connection for rotating flexible shut-off valve 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；
Fig. 5 is a kind of top cross-sectional view for the gland for rotating flexible shut-off valve of the utility model；
Fig. 6 is a kind of top cross-sectional view for the handwheel for rotating flexible shut-off valve of the utility model；
In figure：1. valve body, 2. valve decks, 3. valve rods, 4. spools, 5. handwheels, 6. protective covers, 7. stuffing-boxes, 8. fillers, 9. fill out
Expect gland, 10. screws, 11. transmission gears, 12. extensions, 13. bolts, 14. sealing rings, 15. connect bolts, and 16. media are logical
Road, 17. master gears, 18. from gear, 19. chains, 20. nuts, 21. valve stem nuts, 22. upper covers, 23. lower covers, 24. connection rings,
25. annular ball groove, 26. turns of balls, 27. connecting rods, 28. attachment screws, 29. cartridge covers, 30. insert bodies, 31. fixing screws,
32. horizontal bench, 33. valve core sealed covers, 34. valve body sealing surfaces, 35. racks, 36. gear grooveds, 37. handwheel screws, 38. spiral shells
Nail hole, 39. driving chains.
Specific embodiment
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 figures 1 to 6, a kind of flexible shut-off valve of rotation, including valve body 1, valve deck 2, valve rod 3, spool 4 and handwheel 5,
The top of the valve body 1 is provided with telescopic protective cover 6, and the bottom inside of the protective cover 6 is movably connected in the outer of valve deck 1
Side, the top of the protective cover 6 are rotatably connected on the bottom of handwheel 5, and the valve rod 3 passes through valve deck 2 and enters valve body 1, and valve rod 3
The junction top of valve deck 2 is provided with stuffing-box 7, filler 8 is filled in the stuffing-box 7, the top of the filler 8 is arranged
There is gland 9, the screw 10 that multiple bottom ends are connected to 2 top of valve deck, the screw are evenly arranged on the gland 9
10 top is fixedly installed rotate gear 11, and the outside of each rotate gear 11 is connected by driving chain 39, described
The side of gland 9 is provided with extension 12, and the bolt 13 connecting with valve deck 2, the spiral shell are provided on the extension 12
Bolt 13 is connected by transmission mechanism with the transmission gear 11 close to bolt 13.
Sealing ring 14 is provided between the valve deck 2 and valve body 1, and the outside of the two is connected by connection bolt 15；It is close
Seal 14 can increase the leakproofness between valve deck 2 and valve body 1, and connect the connection of bolt 15 and can be realized shut-off valve disassembly just
Benefit.
The bottom of valve rod 3 is arranged in the spool 4, and the top of valve rod 3 is arranged in the handwheel 5；
Medium channel 16 is provided in the valve body 1.
The transmission mechanism includes master gear 17 and from gear 18, and is connected to master gear 17 and between gear 18
Chain 19, the master gear 17 are arranged at the top of the shank of bolt of bolt 13, the biography that bolt 13 is positioned close to from gear 18
The top of moving gear 11.By rotating bolt 13, is rotated to be driven using master gear 17 from gear 18, realize each driving cog
The wheel 11 even rotation of screw 10 make gland 9 be connected to the top of valve body 1.
The bolt 13 with, uniformly to be threadedly coupled, and its bottom end is across the connection of valve deck 2 between extension 12 and valve deck 2
There is nut 20.Bolt 13 can be avoided to loosen with fixing bolt 13.
The top of the valve deck 2 is provided with valve stem nut 21, and one end of the valve stem nut 21 is fixed on the top of valve deck 2
Portion, the valve rod 3 pass through valve stem nut 21 and are to be threadedly coupled with valve stem nut 21.Rotation of the valve rod 3 on valve stem nut 21,
To moving down with ovable valve stem 3.
The protective cover 6 includes upper cover 22 and lower cover 23, and the top of valve stem nut 21 is arranged in the top of the lower cover 23,
Its bottom is to be threadedly coupled with the outside of valve deck 1；Lower cover 23 is for protecting valve stem nut 21, gland 9 and valve rod 3 and valve
The junction etc. of stem nut 21 the case where avoiding it from being stained with dust, get rusty, influences rotation and the shut-off valve of valve rod 3
Sealing.
3 outside of valve rod that 23 top of lower cover is set of the upper cover 22, and it is retractable structure.Upper cover 22 can protect
The valve rod 3 for protecting 21 top of valve stem nut avoids it from damaging because long-time is exposed, and stretching structure can make it follow valve rod 3
Move up and down and stretch, protecting effect is more preferable, more convenient to use.
Specifically, upper cover 22 can be the PVC material of folding, or it is coated with the non-woven fabrics material of waterproof membrane.
The top of the upper cover 22 is provided with connection ring 24, and the bottom inside of the handwheel 5 is evenly arranged with annular ball groove
25, it is described annular ball groove 25 in be evenly arranged with it is multiple turn ball 26, the bottom for turning ball 26 extends handwheel 5 and is provided with connection
Bar 27, the bottom of the connecting rod 27 are passed through connection ring 24 and are fixed using attachment screw 28, the bottom half of the attachment screw 28
Diameter is greater than the radius of connecting rod 27.It, can be in rotation handwheel 5 with ovable valve stem 3 using rotation of the ball 26 in annular ball groove 25 is turned
During rotation, make protective cover 6 not with rotating with it, plays a good protective effect to valve rod 3, and 28 bottom of attachment screw
Radius be greater than connecting rod 27 cross section radius, while also greater than the radius of 24 upper connecting rod of connection ring, 27 via hole, thus
Play the role of being fixedly connected with ring 24 and turns ball 26.
The spool 4 includes cartridge cover 29 and insert body 30, and the cartridge cover 29 is connected to valve by fixing screws 31
The outside of 3 bottom of bar, the insert body 30 are threadedly attached in the outside of cartridge cover 29；Pass through fixing screws 31 and spiral shell
The spool 4 of line connection dismantles more convenient, be more convenient for maintenance and replacement.
It is provided with downward horizontal bench 32 on the side wall of the insert body 30, is provided with valve in the horizontal bench 32
Core sealing surface 33；34 horizontal abutment of 33 face of seal spool and valve body sealing surface realizes the good cutoff function of shut-off valve.
The bottom of the insert body 30 is arc-shaped.It is arc-shaped to reduce the resistance of shut-off valve when closed, increase
The convenience that shut-off valve uses.
The top of the valve rod 3 is provided with rack 35, and the handwheel 5 is provided centrally with and the matched tooth of rack 35
Race 36, outside of 36 sets of the gear grooved in rack 35, it is fixed that the top of the rack 35 is provided with handwheel screw 37
The radius of gear grooved 36 and rack 35,37 top of handwheel screw is greater than the radius of 36 circumscribed circle of gear grooved.Pass through gear
The connection of bar 35 and gear grooved 36, can be when rotating handwheel 5, and band ovable valve stem 3 rotates.
The top of the corresponding valve deck 2 of the screw 10 is provided with screw hole 38, and the bottom end of the screw 10 passes through filler pressure
Lid 9 is threadedly coupled with screw hole 38.Increase the stability that gland 9 connects, and convenient disassembly.
When installing the gland 9 of shut-off valve, the screw 10 on gland 9 is directed to the spiral shell of 2 top of valve deck first
The bottom level of gland 9 is placed in stuffing-box 7, then rotating bolt 13 by nail hole 38, and bolt 13 rotates, and makes main tooth
Wheel 17 is driven from gear 18 by chain 19 and is rotated, and is driven transmission gear 11 below to rotate from the rotation of gear 18, is then led to
It crosses driving chain 39 while each transmission gear 11 being driven to rotate, realize the synchronous rotation of each screw 10, realize gland 9
Fixation, guarantee its installation level, will not influence valve rod 3 rotation flexibility.After gland 9 is fixed, then will
Nut 20 is screwed in the bottom of bolt, and bolt 13 is fixed.
When needing shut-off valve to open, handwheel 5 is rotated, handwheel 5 is rotated up on valve stem nut 21 with ovable valve stem 3, from
And moving up with movable valve plug 4, it separates valve core sealed cover 33 with valve body sealing surface 34, so that medium channel 16 be made to be connected to, realizes
The unlatching of shut-off valve.
Equally, when needing to close shut-off valve, handwheel 5 is rotated backward according to when opening, valve rod 3 moves down, and pushes under spool 4
It moves, is bonded valve core sealed cover 33 with valve body sealing surface 34, so that medium channel 16 be closed, realizes the closing of shut-off valve.
And when rotating handwheel 5, turning ball 26 can rotate in annular ball groove 25, it is ensured that protective cover 6 will not follow it
Rotation, to play a good protective effect to components such as valve rods 3, extends the service life of shut-off valve.
Compared with prior art, the utility model on gland due to being provided with multiple screws, and bolt can lead to
It crosses transmission mechanism to drive the transmission gear above each screw while rotating, the degree that each screw can be made to turn keeps phase
It together, is not in the inclined situation of pressure, the rotation for avoiding valve rod is not flexible, mentions to guarantee the steady of gland installation
The practicability of high shut-off valve.Due to being provided with protective cover on valve deck, can be prevented by protective cover valve rod, valve stem nut and
The dew such as junction of valve stem nut and valve rod is naked to avoid the corrosion and damage of above-mentioned all parts in air, to improve
The using effect of shut-off valve, prolongs its service life.
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 technical idea completely.This item is real
It is not limited to the contents of the specification with novel technical scope, it is necessary to its technology is determined according to scope of the claims
Property range.
Claims (10)
1. a kind of flexible shut-off valve of rotation, it is characterised in that：Including valve body, valve deck, valve rod, spool and handwheel, the valve body
Top be provided with telescopic protective cover, the bottom inside of the protective cover is movably connected in the outside of valve deck, the protection
The top of cover is rotatably connected on the bottom of handwheel, and the valve rod passes through valve deck and enters valve body, and on the junction of valve rod and valve deck
Portion is provided with stuffing-box, is filled with filler in the stuffing-box, the top of the filler is provided with gland, the filler pressure
It covers and is evenly arranged with the screw that multiple bottom ends are connected at the top of valve deck, be fixedly installed rotate gear at the top of the screw,
The outside of each rotate gear is connected by driving chain, and the side of the gland is provided with extension, described to prolong
The bolt connecting with valve deck is provided in extending portion, the bolt is connected by transmission mechanism with the transmission gear close to bolt.
2. the flexible shut-off valve of rotation according to claim 1, it is characterised in that：It is provided between the valve deck and valve body
Sealing ring, and the outside of the two is bolted by connection；
The bottom of valve rod is arranged in the spool, and the top of valve rod is arranged in the handwheel；
Medium channel is provided in the valve body.
3. the flexible shut-off valve of rotation according to claim 1, it is characterised in that：The transmission mechanism include master gear and
From gear, and it is connected to master gear and from the chain between gear, the master gear is arranged at the top of the shank of bolt of bolt, institute
State the top that the transmission gear of bolt is positioned close to from gear.
4. the flexible shut-off valve of rotation according to claim 1, it is characterised in that：The bolt and extension and valve deck
Between uniformly for be threadedly coupled, and its bottom end pass through valve deck be connected with nut.
5. the flexible shut-off valve of rotation according to claim 1, it is characterised in that：Valve rod is provided with above the valve deck
Nut, one end of the valve stem nut are fixed on the top of valve deck, and the valve rod passes through valve stem nut and is spiral shell with valve stem nut
Line connection.
6. the flexible shut-off valve of rotation according to claim 5, it is characterised in that：The protective cover includes upper cover under
It covers, the top of valve stem nut is set at the top of the lower cover, bottom is to be threadedly coupled with the outside of valve deck；
On the outside of the valve rod of the upper cover being arranged in above lower cover, and it is retractable structure.
7. the flexible shut-off valve of rotation according to claim 6, it is characterised in that：Connection is provided at the top of the upper cover
Ring, the bottom inside of the handwheel are evenly arranged with annular ball groove, be evenly arranged in the annular ball groove it is multiple turn ball, it is described
The bottom for turning ball extends handwheel and is provided with connecting rod, and the bottom of the connecting rod is passed through connection ring and fixed using attachment screw,
The bottom radius of the attachment screw is greater than the radius of connecting rod.
8. the flexible shut-off valve of rotation according to claim 1, it is characterised in that：The spool includes cartridge cover and spool
Ontology, the cartridge cover are connected to the outside of stem bottom by fixing screws, and the insert body is threadedly attached in valve
The outside of core cap；
It is provided with downward horizontal bench on the side wall of the insert body, is provided with valve core sealed cover in the horizontal bench；
The bottom of the insert body is arc-shaped.
9. the flexible shut-off valve of rotation according to claim 1, it is characterised in that：Gear is provided at the top of the valve rod
Bar, being provided centrally with for the handwheel are covered with the matched gear grooved of rack, the gear grooved in the outside of rack, the tooth
The fixed gear grooved of handwheel screw and rack are provided at the top of wheel bar, the radius of the handwheel screw head is greater than outside gear grooved
Connect round radius.
10. the flexible shut-off valve of rotation according to claim 1, it is characterised in that：The top of the corresponding valve deck of the screw
Portion is provided with screw hole, and the bottom end of the screw passes through gland and is threadedly coupled with screw hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820547687.4U CN208123478U (en) | 2018-04-17 | 2018-04-17 | A kind of flexible shut-off valve of rotation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820547687.4U CN208123478U (en) | 2018-04-17 | 2018-04-17 | A kind of flexible shut-off valve of rotation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208123478U true CN208123478U (en) | 2018-11-20 |
Family
ID=64190216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820547687.4U Expired - Fee Related CN208123478U (en) | 2018-04-17 | 2018-04-17 | A kind of flexible shut-off valve of rotation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208123478U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113883301A (en) * | 2021-10-26 | 2022-01-04 | 昆山莱恒洁净材料有限公司 | High-pressure gas diaphragm valve |
-
2018
- 2018-04-17 CN CN201820547687.4U patent/CN208123478U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113883301A (en) * | 2021-10-26 | 2022-01-04 | 昆山莱恒洁净材料有限公司 | High-pressure gas diaphragm 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 |
Granted publication date: 20181120 Termination date: 20190417 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |