CN206647552U - A kind of gate valve for being conveniently replaceable sealing ring - Google Patents
A kind of gate valve for being conveniently replaceable sealing ring Download PDFInfo
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- CN206647552U CN206647552U CN201720387762.0U CN201720387762U CN206647552U CN 206647552 U CN206647552 U CN 206647552U CN 201720387762 U CN201720387762 U CN 201720387762U CN 206647552 U CN206647552 U CN 206647552U
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- valve
- sealing ring
- valve rod
- bonnet
- mounting hole
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Abstract
The utility model discloses a kind of gate valve for being conveniently replaceable sealing ring, valve body is provided with the manhole of insertion left and right ends, and valve body center top be provided with mutually perpendicular first mounting hole of manhole, is provided with flashboard in the first mounting hole；The bottom of bonnet is provided with the second mounting hole to match with the first mounting hole with being fixedly connected at the top of the first mounting hole in bonnet, the 3rd mounting hole is provided with the top of bonnet；Valve rod bottom and the top of flashboard are connected through a screw thread, and the top of valve rod is additionally provided with handwheel；The gate valve is when changing the first sealing ring or four sealing rings, the fluid in main valve and exhausting pipeline need not be turned off, as long as handwheel is pulled down from the afterbody of valve rod, gland is taken out along valve rod from afterbody, then the first sealing ring of abrasion removed, or the 4th sealing ring worn on bonnet is removed, put brand-new sealing ring and just complete sealing ring replacing, it is simple to operate, production efficiency is favorably improved, effectively reduces production cost.
Description
Technical field
Valve technology field is the utility model is related to, more particularly to a kind of gate valve for being conveniently replaceable sealing ring.
Background technology
In pipe-line system, gate valve is control element, and the opening and closing element of gate valve is flashboard, the direction of motion of flashboard and fluid side
To perpendicular, by controlling the lifting of flashboard the fluid isolating or connect in pipeline.Whether lifted according to valve rod when opening and closing
Difference, gate valve can be divided into Outside screw stem rising through handwheel type gate valve and inside screw nonrising stem type gate valve；For inside screw nonrising stem type gate valve in opening-closing process, handwheel and valve rod are to be connected to one
Rise it is relatively motionless, rotate handwheel band ovable valve stem rotate, valve rod rotational band ovable valve stem lift nut, so as to drive flashboard
Lifted in valve body, to ensure the sealing of gate valve, seal is provided between valve rod and bonnet, is set between bonnet and gland
There is seal, because seal outer surface and bonnet have relative motion, seal is constantly lost, so needing frequent
Seal is changed；At present sealing ring is changed in the valve rod to inside screw nonrising stem type gate valve or to being sealed between bonnet and gland
When circle is changed, all it is to need to close main valve and be vented the fluid in pipeline, replacing sealing ring, this gate valve could be carried out
Sealing ring be present and change the defects of inconvenient, can be in the case of pipeline normal work to sealing therefore, it is necessary to research and develop one kind
Circle is changed, to solve the above problems.
Utility model content
The purpose of this utility model is to provide a kind of gate valve for being conveniently replaceable sealing ring, carried with solving above-mentioned background technology
The problem of replacing Gate-valve sealing circle inconvenience gone out.
To achieve the above object, the utility model provides following technical scheme：A kind of gate valve for being conveniently replaceable sealing ring, bag
Include valve body, bonnet, gland, handwheel, valve rod, split annulus and flashboard；The valve body is provided with the circle of insertion left and right ends
Through hole, and valve body center top is provided with and first mounting hole that interconnects orthogonal with manhole, in the first mounting hole
It is movably provided with flashboard moving up and down；The bottom of the bonnet is fixedly connected with the tight of the first mounting hole, and valve
The second mounting hole to match with the first mounting hole is provided with lid, the 3rd mounting hole for being used for installing valve rod is provided with the top of bonnet；
The bottom of the gland is fixedly connected with the tight of bonnet, is provided with gland and is used for the 4th peace for installing valve rod
Hole is filled, the split annulus for making valve rod keep vertical is additionally provided between bonnet and gland, valve rod is rotatably installed on
Inside 4th mounting hole, split annulus and the 3rd mounting hole, and valve rod is tightly connected with bonnet and gland, under valve rod
Portion is placed in the second mounting hole and the first mounting hole, and valve rod bottom and the top of flashboard are connected through a screw thread, the top of valve rod
Handwheel is additionally provided with, is rotated by rotating handwheel come band ovable valve stem, valve rod, which rotates, will be such that flashboard is carried out along the first mounting hole
Lower movement, realization open or close gate valve.
Further, the junction of the valve rod and gland is provided with the junction of the first sealing ring, valve rod and bonnet
The second sealing ring is equipped with, the bottom of valve rod is provided with the connecting screw for being used for being threadedly coupled with flashboard top.
Further, the top of the flashboard is provided with the valve stem nut for being used for being threadedly coupled with valve rod bottom, flashboard
Inside be provided with the accommodating cavity that is vertically arranged, the aperture of the accommodating cavity is more than the diameter of valve rod bottom, when flashboard rises, valve
Bar bottom can be extend into accommodating cavity.
Further, the junction of the valve body and bonnet is provided with the 3rd sealing ring, the company of the bonnet and gland
Meet place and be provided with the 4th sealing ring.
Further, the top of the valve body and the bottom of bonnet are locked sealed connection by bolt, the bonnet
Top and the bottom of gland be locked sealed connection by bolt.
Compared with prior art, the beneficial effects of the utility model are：The gate valve is close in the first sealing ring of replacing or the 4th
During seal, without turning off the fluid in main valve, and exhausting pipeline, as long as handwheel is pulled down from the afterbody of valve rod, by gland
Take out along valve rod from afterbody, then the first sealing ring worn on valve rod is removed, or the 4th worn on bonnet
Sealing ring is removed, and is put brand-new sealing ring and is just completed sealing ring replacing, simple to operate, is favorably improved production efficiency,
Effectively reduce production cost.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Reference：1st, valve body；2nd, bonnet；3rd, gland；4th, handwheel；5th, valve rod；6th, split annulus；7th, flashboard；8、
Valve stem nut；11st, manhole；12nd, the first mounting hole；13rd, the second mounting hole；15th, accommodating cavity；16th, the first sealing ring；
17th, the second sealing ring；18th, the 3rd sealing ring；19th, the 4th sealing ring；20th, the 5th sealing ring.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing to this reality
It is further elaborated with new.It should be appreciated that embodiment described herein is only explaining this practicality
It is new, it is not used to limit the utility model.
As shown in figure 1, a kind of gate valve for being conveniently replaceable sealing ring, including valve body 1, bonnet 2, gland 3, handwheel 4, valve
Bar 5, split annulus 6 and flashboard 7；The valve body 1 is provided with the manhole 11 of insertion left and right ends, and the center top of valve body 1 is set
There is the first mounting hole 12 that is orthogonal with manhole 11 and interconnecting, being movably provided with the first mounting hole 12 can be upper and lower
Mobile flashboard 7；The bottom of the bonnet 2 is fixedly connected with the tight of the first mounting hole 12, and is provided with and the in bonnet 2
The second mounting hole 13 that one mounting hole 12 matches, the top of bonnet 2 are provided with the 3rd mounting hole for being used for installing valve rod 5；It is described to fill out
The bottom of material gland 3 is fixedly connected with the tight of bonnet 2, is provided with gland 3 and is used for the 4th installation for installing valve rod 5
Hole, is additionally provided with the split annulus 6 for making valve rod 5 keep vertical between bonnet 2 and gland 3, valve rod 5 is rotatably mounted
Inside the 4th mounting hole, the mounting hole of split annulus 6 and the 3rd, and valve rod 5 is tightly connected with bonnet 2 and gland 3, valve
The bottom of bar 5 is placed in the second mounting hole 13 and the first mounting hole 12, and the bottom of valve rod 5 and the top of flashboard 7 are connected by screw thread
Connect, the top of valve rod 5 is additionally provided with handwheel 4, is rotated by rotating handwheel 4 come band ovable valve stem 5, valve rod 5, which rotates, will make the edge of flashboard 7
The first mounting hole 12 to move up and down, realization opens or closes gate valve.
The junction of the valve rod 5 and gland 3 is provided with the first sealing ring 16, and the junction of valve rod 5 and bonnet 2 is all provided with
There is the second sealing ring 17, the bottom of valve rod 5 is provided with the connecting screw for being used for being threadedly coupled with the top of flashboard 7；The flashboard 7
Top be provided with and be used for the valve stem nut 8 that is threadedly coupled with the bottom of valve rod 5, the top of valve stem nut 8 is provided with the 5th sealing
Circle 20, the inside of flashboard 7 are provided with the accommodating cavity 15 being vertically arranged, and the aperture of the accommodating cavity 15 is more than the straight of the bottom of valve rod 5
Footpath, when flashboard 7 rises, the bottom of valve rod 5 can be extend into accommodating cavity 15；The junction of the valve body 1 and bonnet 2 is provided with the 3rd
Sealing ring 18, the junction of the bonnet 2 and gland 3 are provided with the 4th sealing ring 19, the first sealing ring 16, the second sealing ring
17th, the 3rd sealing ring 18, the 4th sealing ring 19 and the 5th sealing ring 20 are preferably O-ring seals；The top of the valve body 1 and valve
The bottom of lid 2 is locked sealed connection by bolt, and the top of the bonnet 2 passes through bolt lock with the bottom of gland 3
Fasten sealed connection.
It is of the present utility model to use process, it is necessary to change the first sealing ring 16 either the 4th sealing ring 19 or gland
When 3, rotate handwheel 4 and rotated with ovable valve stem 5, the rotational band ovable valve stem nut 8 of valve rod 5 is moved, and flashboard 7 is reached and most pushed up
Hold, the 5th sealing ring 20 above valve stem nut 8 presses the bottom of bonnet 2, forms sealing effectiveness, then unclamps the afterbody of valve rod 5 and uses
To fix the bolt of handwheel 4, handwheel 4 is taken out, then unclamps the bolt that gland 3 and bonnet 2 are fixed, the edge of gland 3
Valve rod 5 to take out from afterbody；The first sealing ring 16 being worn on valve rod 5 will reveal, the second sealing ring on valve rod
17 keep being fitted close with bonnet 2, prevent the fluid in pipeline from being leaked out from the junction of valve rod 5 and bonnet 2, and will appear
The first sealing ring 16 remove along the afterbody of valve rod 5 take out, put brand-new sealing ring and just complete to the first sealing ring 16
Change；The 4th sealing ring 19 that the top of bonnet 2 is worn is taken out, brand-new sealing ring is put and just completes to the 4th sealing ring 19
Replacing；The gland 3 of damage is changed the complete lid of filler pressure 3 and is inserted in after taking out is fixed on above bonnet 2；The gate valve it is close
Seal replacement operation is simple and convenient, is favorably improved production efficiency, effectively reduces production cost.
For above-described embodiment only to illustrate technical concepts and features of the present utility model, its object is to allow be familiar with technique
Personage can understand content of the present utility model and implement according to this, the scope of protection of the utility model can not be limited with this.
All equivalent change or modifications made according to the utility model Spirit Essence, should all cover the scope of protection of the utility model it
It is interior.
Claims (5)
- A kind of 1. gate valve for being conveniently replaceable sealing ring, it is characterised in that：Including valve body, bonnet, gland, handwheel, valve rod, right Open annulus and flashboard；The valve body is provided with the manhole of insertion left and right ends, and valve body center top is provided with and manhole The first mounting hole that is orthogonal and interconnecting, flashboard moving up and down is movably provided with the first mounting hole；The valve The bottom of lid is fixedly connected with the tight of the first mounting hole, and the second peace to match with the first mounting hole is provided with bonnet Hole is filled, the 3rd mounting hole for being used for installing valve rod is provided with the top of bonnet；The bottom of the gland and the tight of bonnet It is fixedly connected, the 4th mounting hole for being used for installing valve rod is provided with gland, is additionally provided with and is used between bonnet and gland Valve rod is set to keep vertical split annulus, valve rod is rotatably installed in the 4th mounting hole, split annulus and the 3rd mounting hole Portion, and valve rod is tightly connected with bonnet and gland, the bottom of valve rod is placed in the second mounting hole and the first mounting hole, and Valve rod bottom and the top of flashboard are connected through a screw thread, and the top of valve rod is additionally provided with handwheel, by rotating handwheel come band ovable valve stem Rotate, valve rod, which rotates, will be such that flashboard is moved up and down along the first mounting hole, and realization opens or closes gate valve.
- 2. a kind of gate valve for being conveniently replaceable sealing ring according to claim 1, it is characterised in that the valve rod and filler pressure The junction of lid is provided with the first sealing ring, and the junction of valve rod and bonnet is equipped with the second sealing ring, and the bottom of valve rod, which is provided with, to be used In the connecting screw being threadedly coupled with flashboard top.
- 3. a kind of gate valve for being conveniently replaceable sealing ring according to claim 1, it is characterised in that set at the top of the flashboard There is the valve stem nut for being threadedly coupled with valve rod bottom, the inside of flashboard is provided with the accommodating cavity being vertically arranged, the appearance Receive cavity aperture be more than valve rod bottom diameter, flashboard rise when, valve rod bottom can be extend into accommodating cavity.
- 4. a kind of gate valve for being conveniently replaceable sealing ring according to claim 1, it is characterised in that the valve body and bonnet Junction is provided with the 3rd sealing ring, and the junction of the bonnet and gland is provided with the 4th sealing ring.
- A kind of 5. gate valve for being conveniently replaceable sealing ring according to claim 1, it is characterised in that the top of the valve body with The bottom of bonnet is locked sealed connection by bolt, and the top of the bonnet and the bottom of gland are locked by bolt Fixed seal connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720387762.0U CN206647552U (en) | 2017-04-14 | 2017-04-14 | A kind of gate valve for being conveniently replaceable sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720387762.0U CN206647552U (en) | 2017-04-14 | 2017-04-14 | A kind of gate valve for being conveniently replaceable sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206647552U true CN206647552U (en) | 2017-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720387762.0U Active CN206647552U (en) | 2017-04-14 | 2017-04-14 | A kind of gate valve for being conveniently replaceable sealing ring |
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| CN (1) | CN206647552U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110561032A (en) * | 2018-06-06 | 2019-12-13 | 中国石油天然气股份有限公司 | valve copper bush dismounting method and valve copper bush replacing method |
-
2017
- 2017-04-14 CN CN201720387762.0U patent/CN206647552U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110561032A (en) * | 2018-06-06 | 2019-12-13 | 中国石油天然气股份有限公司 | valve copper bush dismounting method and valve copper bush replacing method |
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