CN207112078U - A kind of stop valve - Google Patents
A kind of stop valve Download PDFInfo
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- CN207112078U CN207112078U CN201720936613.5U CN201720936613U CN207112078U CN 207112078 U CN207112078 U CN 207112078U CN 201720936613 U CN201720936613 U CN 201720936613U CN 207112078 U CN207112078 U CN 207112078U
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- valve
- valve body
- bonnet
- gland
- valve element
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Abstract
It the utility model is related to a kind of stop valve, including valve body, bonnet, one opening/closing component, the opening/closing component includes a valve rod, filler is additionally provided between bonnet and valve rod, the upper end of filler is compressed by gland, simultaneously a bolt clip plate is threaded with the outer end of bonnet, one end of the bolt clip plate is connected by eyelet bolt with gland, locked after eyelet bolt passes through gland by a hex nut, a butterfly spring is additionally provided between hex nut and gland, one valve element is installed in the lower end of valve rod, the valve seat being engaged with valve element is installed in valve body simultaneously, one is arranged on shrouding in valve body.The utility model has the advantage of：By setting up a butterfly spring between hex bolts and gland, accordingly even when after the descending segment distance of gland, also can be by the elastic reaction of butterfly spring in itself, to ensure the stabilization connected between gland and bolt clip plate, it is ensured that the sealing effectiveness between valve rod and bonnet.
Description
Technical field
A kind of valve is the utility model is related to, more particularly to a kind of stop valve.
Background technology
Stop valve blocks one of class valve as most important, is played an important role in aerospace field.As
The critical elements of space equipment, stop valve realize function, its sealing property such as medium conveying, cut-off, regulation and directly influenced
The safe and reliable operation of space equipment.The influence factor and affecting laws of typical stop valve sealing characteristics are studied, to valve seal
Secondary structure design has directive significance, so as to improve the sealing property of valve and reliability.
Stop valve（stop valve,Globe Valve）Opening and closing element be stopper flap, sealing above be in plane or sea
The conical surface, flap are for linear motion along the center line of valve seat.The forms of motion of valve rod,（Adopted name：Dark bar）, also there is lifting rotation
Rod-type can be used for controlling empty gas and water, steam, various Korrosionsmediums, mud, oil product, liquid metal and radiating medium etc. each
The flowing of type fluid.Therefore, such stop valve valve that dams is highly suitable as cutting off or adjusts and throttle
With.Due to the valve rod of such valve, to be turned on and off stroke relatively short, and has very reliable cutting function, and due to
The change of valve seat port and the stroke direct proportionality of flap, are very suitable for the regulation to flow.
At present, the commercially stop valve in use, between valve rod and bonnet in order to ensure sealing effectiveness, it is necessary to
Increase filler between the two, while need to increase by a gland in the upper end of filler to compress filler, and for filling out
The fixation of material gland needs to connect a bolt clip plate in the outer end of bonnet again, and by an eyelet bolt bonding pad gland come real
Now to the fixation of gland.It is by eyelet bolt and hexagonal spiral shell in traditional structure, between gland and bolt clip plate
It is screwed, i.e., is not directly connected between gland and bolt clip plate fixed between mother, and such connection, if
Filler occurs during use to be squeezed and cause thickness to become hour, may result in the height of gland also can under
Drop, and then may result in and gap between gland and hex nut be present, connection is unstable, between valve rod and bonnet
Sealing will be affected.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of stop valve, and can reduce ensures gland and bolt
The stabilization connected between pressing plate, ensure the sealing effectiveness between valve rod and bonnet.
In order to solve the above technical problems, the technical solution of the utility model is：A kind of stop valve, its innovative point are：Bag
Include
One valve body, the valve body is interior to have the runner for holding flow of media, while also has respectively on valve body and be connected with runner
A logical inlet, a liquid outlet；
One bonnet, the bonnet is arranged on the upper end of valve body and cooperated with valve body, while has on valve body and hold valve
The groove of installation is covered, the upper end of the bonnet is mutually fixed by clamp nut with valve body；
One opening/closing component, the opening/closing component includes one and passes through bonnet and the valve rod stretched into valve body from top to bottom, in valve
Filler is additionally provided between lid and valve rod, the upper end of filler is compressed by gland, while is threadedly coupled in the outer end of bonnet
There is a bolt clip plate, one end of the bolt clip plate is connected by eyelet bolt with gland, and filler pressure is passed through in eyelet bolt
Locked after lid by a hex nut, a butterfly spring is additionally provided between hex nut and gland, the valve rod
Upper end is stretched out outside valve body and is threaded with a valve stem nut, is provided with a valve element in the lower end of valve rod, while pacify in valve body
Equipped with the valve seat being engaged with valve element, heap is welded with sealing surface A on the inwall of valve element, meanwhile, it is welded with the upper end heap of valve seat close
Front cover B, and the sealing surface A of valve element and the sealing surface B of valve seat cooperatively form sealing pair jointly；
One adjusting part, the adjusting part includes one and is arranged on shrouding in valve body, and this is shrouded positioned at the outer of valve element
Wall, and be bonded to each other with the outer wall of valve element；
One executive module, the executive module include a support for being connected to valve body upper end, have one in the upper end of support
Hold the cavity of valve stem nut installation, the top of the valve stem nut is connected with handwheel by flat key.
Further, described shroud is additionally provided with a sealing structure between valve element, and the sealing structure is：In valve element
The outer wall of upper end has an annular groove, and airtight and watertight padding is filled with annular groove, and the upper end of airtight and watertight padding has a tension force
Governor motion, the governing mechanism of tension include a regulation locknut for being arranged on airtight and watertight padding upper end, the regulation locknut and valve element it
Between be threadedly coupled, also have one to fix closing piece in the upper end of regulation locknut, the fixation closing piece mutually fixed by bolt with valve element.
The utility model has the advantage of：In the utility model, by being set up between hex bolts and gland
One butterfly spring, accordingly even when after the descending segment distance of gland, it can also be come true by the elastic reaction of butterfly spring in itself
The stabilization connected is protected between gland and bolt clip plate, it is ensured that the sealing effectiveness between valve rod and bonnet.
In addition, by the way that sealing structure is improved to traditional valve element and between shrouding, airtight and watertight padding is arranged on valve element
Upper end, then fixed by governing mechanism of tension, such seal form so that dimension precision requirement greatly reduces, accordingly
The convenience that also just compares of processing, be also convenient for assembling；In addition, pass through the setting of governing mechanism of tension, adjustable sealing filler
Tension force, so as to the sealing effectiveness between can ensure that valve element and shrouding.
Setting for governing mechanism of tension, coordinated by adjusting the screw thread between locknut and valve element, so as to by turning
Dynamic regulation locknut adjusts the tension force of airtight and watertight padding, and then the sealing between realizing to valve element and shrouding, meanwhile, pass through fixing lock
The setting of block, the position for adjusting locknut can be fixed, avoid it during use, there is the phenomenon rotated and
The tension force of airtight and watertight padding is had influence on, further ensures sealing effectiveness.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the schematic diagram of stop valve of the present utility model.
Fig. 2 is to shroud the sealed structural representation with valve element in the utility model.
Embodiment
The following examples can make professional and technical personnel that the utility model be more fully understood, but therefore will not
The utility model is limited among described scope of embodiments.
A kind of stop valve as shown in Figure 1, including
One valve body 1, there is the runner for holding flow of media in the valve body 1, while also have respectively on valve body 1 and runner phase
An inlet, a liquid outlet for connection.
One bonnet 9, the bonnet 9 is arranged on the upper end of valve body 1 and cooperated with valve body 1, while has on valve body 1 and hold
The groove that bonnet 9 is installed, the upper end of bonnet 9 are fixed by clamp nut 12 and the phase of valve body 1, in the outer end of bonnet 9 positioned at compression
The lower end of nut 12 is also set with gasket ring 11, self sealss circle 10 successively.
One opening/closing component, the opening/closing component includes one and passes through bonnet 9 and the valve rod 7 stretched into valve body 1 from top to bottom, in valve
Filler 15 is additionally provided between lid 9 and valve rod 7, a Packing seat 13 is provided with the lower end of filler 15, the upper end of filler 15 passes through
Gland 20 is compressed, while a bolt clip plate 18 is threaded with the outer end of bonnet 9, and one end of the bolt clip plate 18 passes through
Eyelet bolt 19 is connected with gland 20, is locked after eyelet bolt 19 passes through gland 20 by a hex nut 23,
A butterfly spring 21 is additionally provided between hex nut 23 and gland 20.By between hex bolts and gland
Set up a butterfly spring, accordingly even when after the descending segment distance of gland, also can by the elastic reaction of butterfly spring in itself,
To ensure the stabilization connected between gland and bolt clip plate, it is ensured that the sealing effectiveness between valve rod and bonnet.
The upper end of the valve rod 7 is stretched out outside valve body 1 and is threaded with a valve stem nut 31, is provided with the lower end of valve rod 1
One valve element 4, while the valve seat 3 being engaged with valve element 4 is installed in valve body 1, it is additionally provided with an air ring in the lower end of valve seat 3
Piece 2, heap is welded with sealing surface A on the inwall of valve element 4, meanwhile, it is welded with sealing surface B, and the sealing of valve element in the upper end heap of valve seat 3
The sealing surface B of face A and valve seat cooperatively forms sealing pair jointly.
One adjusting part, the adjusting part includes one and shrouds 6 in valve body 1, and this shrouds 6 positioned at valve element 4
Outer wall, and be bonded to each other with the outer wall of valve element 4, it is additionally provided with a disk spring 8 shrouding between 6 upper end and bonnet 9.
Schematic diagram as shown in Figure 2 is understood, is additionally provided with a sealing structure shrouding between 6 and valve element 4, the sealing structure
For：Outer wall in the upper end of valve element 4 has an annular groove, and airtight and watertight padding 110, airtight and watertight padding are filled with annular groove
110 upper end has a governing mechanism of tension., will be close by the way that to traditional valve element 4 and between shrouding 6, sealing structure is improved
Packing material 110 is arranged on the upper end of valve element 4, then is fixed by governing mechanism of tension, such seal form so that dimensional accuracy
It is required that greatly reducing, the convenience also just compared is processed accordingly, has been also convenient for assembling；In addition, pass through governing mechanism of tension
Set, the tension force of adjustable sealing filler 110, so as to the sealing effectiveness that can ensure that valve element 4 and shroud between 6.
The governing mechanism of tension includes a regulation locknut 109 for being arranged on the upper end of airtight and watertight padding 110, the regulation locknut 109
It is threadedly coupled between valve element 4, also has one to fix closing piece 108 in the upper end of regulation locknut 109, the fixation closing piece 108 passes through
The upper end of bolt and valve element 4 is mutually fixed.Setting for governing mechanism of tension, by adjusting the spiral shell between locknut 109 and valve element 4
Line coordinates, and so as to adjust the tension force of airtight and watertight padding 110 by rotating regulation locknut 109, and then realizes to valve element 4 with shrouding
Sealing between 6, meanwhile, by the setting of fixed closing piece 108, the position for adjusting locknut 109 can be fixed, avoided
There is the phenomenon rotated and has influence on the tension force of airtight and watertight padding, further ensure sealing effectiveness during use in it.
One executive module, the executive module include a support 29 for being connected to the upper end of valve body 1, and the lower end of support 29 passes through one
Stud 26 is fixed on valve body 1, and is locked by nut 28, and a plain washer is additionally provided between nut 28 and support 29
27, have one to hold the cavity that valve stem nut 31 is installed in the upper end of support 29, the top of valve stem nut 31 passes through with handwheel 35 puts down
Key 34 is connected, while a check nut 36 is also associated with the upper end of handwheel 35.
It should be understood by those skilled in the art that the utility model is not restricted to the described embodiments, above-described embodiment and
Simply illustrate principle of the present utility model described in specification, on the premise of the spirit and scope of the utility model is not departed from,
The utility model also has various changes and modifications, and these changes and improvements both fall within claimed the scope of the utility model
It is interior.The utility model requires protection scope is by appended claims and its equivalent thereof.
Claims (2)
- A kind of 1. stop valve, it is characterised in that：IncludingOne valve body, the valve body is interior to have the runner for holding flow of media, while also has what is be connected with runner respectively on valve body One inlet, a liquid outlet；One bonnet, the bonnet is arranged on the upper end of valve body and cooperated with valve body, while has on valve body and hold bonnet peace The groove of dress, the upper end of the bonnet are mutually fixed by clamp nut with valve body；One opening/closing component, the opening/closing component include one from top to bottom through bonnet and the valve rod that stretches into valve body, bonnet with Filler is additionally provided between valve rod, the upper end of filler is compressed by gland, while is threaded with one in the outer end of bonnet Bolt clip plate, one end of the bolt clip plate are connected by eyelet bolt with gland, after eyelet bolt passes through gland Locked by a hex nut, a butterfly spring, the upper end of the valve rod are additionally provided between hex nut and gland Stretch out outside valve body and be threaded with a valve stem nut, one valve element is installed in the lower end of valve rod, while be provided with valve body The valve seat being engaged with valve element, heap is welded with sealing surface A on the inwall of valve element, meanwhile, it is welded with sealing surface in the upper end heap of valve seat B, and the sealing surface A of valve element and the sealing surface B of valve seat cooperatively form sealing pair jointly；One adjusting part, the adjusting part includes one and is arranged on shrouding in valve body, and this shrouds the outer wall positioned at valve element, and It is bonded to each other with the outer wall of valve element；One executive module, the executive module include a support for being connected to valve body upper end, have one to hold valve in the upper end of support The cavity of stem nut installation, the top of the valve stem nut is connected with handwheel by flat key.
- 2. stop valve according to claim 1, it is characterised in that：Described shroud is additionally provided with a sealing knot between valve element Structure, the sealing structure are：Outer wall in the upper end of valve element has an annular groove, is filled out in annular groove filled with sealing Material, the upper end of airtight and watertight padding have a governing mechanism of tension, and the governing mechanism of tension is arranged on airtight and watertight padding upper end including one Locknut is adjusted, is threadedly coupled between the regulation locknut and valve element, also has one to fix closing piece in the upper end of regulation locknut, this is fixed Closing piece is mutually fixed by bolt with valve element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720936613.5U CN207112078U (en) | 2017-07-31 | 2017-07-31 | A kind of stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720936613.5U CN207112078U (en) | 2017-07-31 | 2017-07-31 | A kind of stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207112078U true CN207112078U (en) | 2018-03-16 |
Family
ID=61582134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720936613.5U Active CN207112078U (en) | 2017-07-31 | 2017-07-31 | A kind of stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207112078U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185467A (en) * | 2018-11-20 | 2019-01-11 | 南通龙源电站阀门有限公司 | A kind of antiscour valve with changeable valve seat shut-off valve |
| CN110094549A (en) * | 2019-04-23 | 2019-08-06 | 陈炜 | A kind of valve of changeable gas flow |
| CN110553043A (en) * | 2019-09-23 | 2019-12-10 | 福建泉牌阀门科技股份有限公司 | Stop valve |
-
2017
- 2017-07-31 CN CN201720936613.5U patent/CN207112078U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185467A (en) * | 2018-11-20 | 2019-01-11 | 南通龙源电站阀门有限公司 | A kind of antiscour valve with changeable valve seat shut-off valve |
| CN110094549A (en) * | 2019-04-23 | 2019-08-06 | 陈炜 | A kind of valve of changeable gas flow |
| CN110553043A (en) * | 2019-09-23 | 2019-12-10 | 福建泉牌阀门科技股份有限公司 | Stop valve |
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