CN207111949U - A kind of novel cutoff valve - Google Patents
A kind of novel cutoff valve Download PDFInfo
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- CN207111949U CN207111949U CN201720936691.5U CN201720936691U CN207111949U CN 207111949 U CN207111949 U CN 207111949U CN 201720936691 U CN201720936691 U CN 201720936691U CN 207111949 U CN207111949 U CN 207111949U
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Abstract
It the utility model is related to a kind of novel cutoff valve, including valve body, bonnet, one is arranged on the valve rod in valve body, the upper end of the valve rod is stretched out outside valve body and is threaded with a valve stem nut, 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, one executive module, the executive module includes a support for being connected to valve body upper end, there is a cavity for holding valve stem nut installation in the upper end of support, there is an annular protrusion in the outer wall of valve stem nut, the upper and lower ends for being located at annular protrusion in the outer wall of valve stem nut are set with a thrust ball bearing.The utility model has the advantage of：One annular protrusion is set by the outer wall in valve stem nut, and one thrust ball bearing is set by the upper and lower ends in annular protrusion, the rotation of valve stem nut is aided in by the cooperation of thrust ball bearing, reduces the friction between valve stem nut and support, it is ensured that valve rod action is smoothed out.
Description
Technical field
A kind of valve is the utility model is related to, more particularly to a kind of novel cutoff 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, the up and down action for valve rod, its generally use be by handwheel or
This YE drives the rotation of valve stem nut and realizes the up and down of valve rod.And during This move, valve stem nut
When in support, during rotation between meeting and the inwall of support formed friction, so as to influence valve rod up and down
Action, in addition, also influence can be brought on the service life of valve stem nut itself.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of novel cutoff valve, when can reduce valve stem nut rotation
Friction between support.
In order to solve the above technical problems, the technical solution of the utility model is：A kind of novel cutoff valve, its innovative point exist
In：Including
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 include a valve rod being arranged in valve body, and valve body is stretched out in the upper end of the valve rod
Outside and a valve stem nut is threaded with, one valve element is installed in the lower end of valve rod, while be provided with and valve element phase in valve body
The valve seat of cooperation, heap is welded with sealing surface A on the inwall of valve element, meanwhile, it is welded with sealing surface B, and valve element in the upper end heap of valve seat
Sealing surface A 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, there is an annular protrusion in the outer wall of valve stem nut, be located at annular in the outer wall of valve stem nut
Raised upper and lower ends are set with a thrust ball bearing, are consolidated positioned at the upper end of the thrust ball bearing of upper end by a bearing gland
Fixed, the top of the valve stem nut is connected with handwheel by flat key.
Further, the bore of the outer wall of the thrust ball bearing is more than the bore of the outer wall of annular protrusion, positioned at lower end
Thrust ball bearing lower end fitting support inwall, and leave gap between the bottom of valve stem nut and support.
Further, the side of the support, which is located at thrust ball bearing, is also provided with an oil filler point.
Further, shroud and a sealing structure is additionally provided between valve element, the sealing structure is：In the upper end of valve element
Outer wall there is an annular groove, airtight and watertight padding is filled with annular groove, the upper end of airtight and watertight padding has a tension adjustment
Mechanism, the governing mechanism of tension include a regulation locknut for being arranged on airtight and watertight padding upper end, spiral shell between the regulation locknut and valve element
Line connects, and also has one to fix closing piece in the upper end of regulation locknut, the fixation closing piece is mutually fixed by bolt with valve element.
The utility model has the advantage of：In the utility model, a convex annular is set by the outer wall in valve stem nut
Rise, and one thrust ball bearing is set by the upper and lower ends in annular protrusion, valve rod is aided in by the cooperation of thrust ball bearing
The rotation of nut, reduce the friction between valve stem nut and support, it is ensured that valve rod action is smoothed out.
By by bore of the bore of the outer wall of the thrust ball design more than the outer wall of annular protrusion, and by the thrust ball of lower end
The inwall of the lower end fitting support of bearing, and gap will be left between the bottom of valve stem nut and support, so that valve rod spiral shell
It is not directly contacted between female and rack inner wall, so as to reduce friction when valve stem nut rotates between rack inner wall, and then
It ensure that being smoothed out for valve rod action.
In the utility model, by setting an oil filler point in the side of support, lubricating oil can be added out of this oil filler point,
Ensure the work well of bearing, avoid the occurrence of stuck phenomenon.
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 novel cutoff valve of the present utility model.
Fig. 2 is the sealed structural representation of the present utility model shrouded with valve element.
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 novel cutoff valve as shown in Figure 1 and Figure 2, 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 include a valve rod 7 being arranged in valve body 1, and valve body is stretched out in the upper end of the valve rod 7
1 is outer and be threaded with a valve stem nut 31, and a valve element 4 is provided with the lower end of valve rod 1, at the same be provided with valve body 1 with
The valve seat 3 that valve element 4 is engaged, an annular gasket 2 is additionally provided with the lower end of valve seat 3, heap is welded with sealing on the inwall of valve element 4
Face A, meanwhile, sealing surface B is welded with the upper end heap of valve seat 3, and the sealing surface A of valve element and the sealing surface B of valve seat coordinate shape jointly
Into sealing pair.
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, there is a convex annular in the outer wall of valve stem nut 31
Rise, the upper and lower ends that annular protrusion is located in the outer wall of valve stem nut 31 are set with a thrust ball bearing 30, positioned at upper end
The upper end of thrust ball bearing 30 is fixed by a bearing gland 32, and bearing gland 32 is fixed on support 29 by holding screw 33
On, the top of valve stem nut 31 is connected with handwheel 35 by flat key 34, while is also associated with the lump in the upper end of handwheel 35
Tight nut 36.By setting an annular protrusion in the outer wall of valve stem nut 31, and set by the upper and lower ends in annular protrusion
One thrust ball bearing 30, the rotation of valve stem nut 31 is aided in by the cooperation of thrust ball bearing 30, reduce valve stem nut 31 with
Friction between support 29, it is ensured that what valve rod 7 acted is smoothed out.
The bore of the outer wall of thrust ball bearing 30 is more than the bore of the outer wall of annular protrusion, the thrust ball bearing positioned at lower end
The inwall of 30 lower end fitting support 29, and leave gap between the bottom of valve stem nut 31 and support 29.By by thrust ball
The bore design of the outer wall of bearing 30 is more than the bore of the outer wall of annular protrusion, and the lower end of the thrust ball bearing 30 of lower end is pasted
Close the inwall of support 29, and gap will be left between the bottom of valve stem nut 31 and support 29 so that valve stem nut 31 with
It is not directly contacted between the inwall of support 29, so as to reduce friction when valve stem nut 31 rotates between the inwall of support 29, enters
And it ensure that being smoothed out for the action of valve rod 7.
It is located in the side of support 29 at thrust ball bearing 30 and is also provided with an oil filler point 37.By being set in the side of support 29
An oil filler point 37 is put, lubricating oil can be added out of this oil filler point 37, it is ensured that the work well of thrust ball bearing 30, avoid the occurrence of card
Dead phenomenon.
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 (4)
- A kind of 1. novel cutoff 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 a valve rod being arranged in valve body, and the upper end of the valve rod is stretched out outside valve body simultaneously A valve stem nut is threaded with, one valve element is installed in the lower end of valve rod, while be provided with valve body and be engaged with valve element Valve seat, heap is welded with sealing surface A on the inwall of valve element, meanwhile, be welded with sealing surface B in the upper end heap of valve seat, and valve element is close The sealing surface B of front cover A and valve seat cooperatively forms 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, has an annular protrusion in the outer wall of valve stem nut, is located at annular protrusion in the outer wall of valve stem nut Upper and lower ends be set with a thrust ball bearing, fixed positioned at the upper end of the thrust ball bearing of upper end by a bearing gland, The top of the valve stem nut is connected with handwheel by flat key.
- 2. novel cutoff valve according to claim 1, it is characterised in that：The bore of the outer wall of the thrust ball bearing is more than The bore of the outer wall of annular protrusion, the inwall of support, and the bottom of valve stem nut are bonded positioned at the lower end of the thrust ball bearing of lower end Gap is left between end and support.
- 3. novel cutoff valve according to claim 1, it is characterised in that：The side of the support is located at thrust ball bearing Also it is provided with an oil filler point.
- 4. novel cutoff valve according to claim 1, it is characterised in that：It is described to shroud that one is additionally provided between valve element is close Seal structure, the sealing structure are：Outer wall in the upper end of valve element has an annular groove, filled with sealing in annular groove Filler, 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 Regulation locknut, be threadedly coupled between the regulation locknut and valve element, also have one to fix closing piece in the upper end of regulation locknut, this is solid Lock block is mutually fixed by bolt with valve element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720936691.5U CN207111949U (en) | 2017-07-31 | 2017-07-31 | A kind of novel cutoff valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720936691.5U CN207111949U (en) | 2017-07-31 | 2017-07-31 | A kind of novel cutoff valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207111949U true CN207111949U (en) | 2018-03-16 |
Family
ID=61582137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720936691.5U Active CN207111949U (en) | 2017-07-31 | 2017-07-31 | A kind of novel cutoff valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207111949U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115325194A (en) * | 2022-10-17 | 2022-11-11 | 中国空气动力研究与发展中心高速空气动力研究所 | Energy-saving valve easy and convenient to disassemble, assemble and maintain |
| EP3658806B1 (en) * | 2017-07-24 | 2023-01-25 | Fisher Controls International Llc | Seal assemblies for use with fluid valves |
-
2017
- 2017-07-31 CN CN201720936691.5U patent/CN207111949U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3658806B1 (en) * | 2017-07-24 | 2023-01-25 | Fisher Controls International Llc | Seal assemblies for use with fluid valves |
| CN115325194A (en) * | 2022-10-17 | 2022-11-11 | 中国空气动力研究与发展中心高速空气动力研究所 | Energy-saving valve easy and convenient to disassemble, assemble and maintain |
| CN115325194B (en) * | 2022-10-17 | 2023-02-03 | 中国空气动力研究与发展中心高速空气动力研究所 | Energy-saving valve easy and convenient to disassemble, assemble and maintain |
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