CN206816948U - HTHP gauge valve valve rod - Google Patents
HTHP gauge valve valve rod Download PDFInfo
- Publication number
- CN206816948U CN206816948U CN201720309132.1U CN201720309132U CN206816948U CN 206816948 U CN206816948 U CN 206816948U CN 201720309132 U CN201720309132 U CN 201720309132U CN 206816948 U CN206816948 U CN 206816948U
- Authority
- CN
- China
- Prior art keywords
- valve rod
- groove
- bellows
- lower valve
- pad
- 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.)
- Active
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 238000005253 cladding Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000002929 anti-fatigue Effects 0.000 abstract description 4
- 239000000945 filler Substances 0.000 description 2
- 241000826860 Trapezium Species 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Landscapes
- Details Of Valves (AREA)
- Diaphragms And Bellows (AREA)
Abstract
It the utility model is related to a kind of HTHP gauge valve valve rod, including upper valve rod, lower valve rod, bellows and pad, bellows coats the outside for being arranged on lower valve rod, the big cylindrical casing of bellows is coated on the outside of the middle bench of lower valve rod, make the end face of the big cylindrical casing of bellows equal with the outerplanar edge step of the middle bench of lower valve rod, and pass through welded seal；Pad is coated on outside lower valve rod, and the aperture of bushing is engaged with the small column sleeve pipe of bellows, and making small column sleeve pipe, the flange protrusions position of aperture of the end face of small column sleeve pipe with padding is equal, and passes through welded seal through the aperture of pad；Valve element is locked by screw thread and is fixed on lower valve rod, and stability is good, and operational flexibility is high, good airproof performance, improves anti-fatigue performance and service life.
Description
Technical field
It the utility model is related to the design of HTHP Bellows valve and manufacture, and in particular to a kind of HTHP gauge valve
Use valve rod.
Background technology
Wide variety of valve mechanism is all to realize anti-leakage sealing by upper filler, because filler rubbed, is shaken, temperature
The influence of the factor such as degree, pressure and environment, there is a possibility that leakage in structure, and it is poisonous, inflammable, explosive, have radioactivity
Leakage is not allow for Deng the medium to be damaged to safety, environment and health, Bellows valve is exactly a kind of very safe
Reliable product, wherein valve rod are kernel components crucial in the product, and it is fixed with valve rod fit, due to fixed form
Limitation, existing valve rod are all integral structures, and sealing and flexibility deficiency, service life is not high.
Utility model content
The utility model proposes a kind of HTHP gauge valve valve rod regarding to the issue above, and stability is good, operation spirit
It is active high, good airproof performance, improve anti-fatigue performance and service life.
Specific technical scheme is as follows：
HTHP gauge valve valve rod, including upper valve rod, lower valve rod, bellows and pad；
The bellows is compressing by multilayer thin-walled alloy seamless pipe, the both ends of bellows be respectively big cylindrical casing and
Small column sleeve pipe, the outside diameter d 1 of big cylindrical casing are equal to the outside diameter d 2 of bellows, and the external diameter of small column sleeve pipe is d3, d1 ＞ d3；
Lower valve rod is separated into lower valve rod top and lower valve rod bottom, lower valve rod top by the lower valve rod by middle bench
End face center be provided with the first groove that section is arc-shaped structure, it is recessed that the upper surface of middle bench is provided with second to cave inward
Groove, forms edge step on middle bench, and the outer wall on lower valve rod top is provided with a ring cross-section is arc-shaped structure the 3rd
Groove, the 3rd groove is between the first groove and the second groove；The outer wall of middle bench and the big cylindrical casing of bellows
Inwall is engaged, and the length of middle bench is L1, and the inside clear length of the big cylindrical casing of bellows is L2, L2-0.1mm≤L1
≤L2+0.3mm；Lower valve rod bottom is polished rod structure, and the bottom of lower valve rod bottom is provided with the first fixing groove, set in the first fixing groove
There is internal thread；
The pad is cylindrical structure, and aperture is provided with pad, and aperture is led to by interconnected first passage and second
Road is formed, and first passage and second channel are coaxially disposed, and the internal diameter d4 of first passage is more than the outside diameter d 5 of second channel, and first is logical
The depth in road is h1, and the height of pad is h2, h1 ＜ h2 ÷ 2；Pad is provided with a circle side positioned at the end face of first passage side
Shape groove, the width L3 of square groove is 1.5~3mm, depth L4 is 1~2mm；Pad is provided with positioned at the end face of second channel side
One circle V-shaped groove, the distance between V-shaped groove inner edge and second channel L6=1mm, the depth L7=1mm of V-shaped groove；
The upper valve rod bottom is provided with the second fixing groove of one end open, and the not opening end of the second fixing groove is spherical crown knot
Structure, the inwall of the second fixing groove are provided with the 4th groove of circle, and lower valve rod top is plug-type to be arranged in the second fixing groove, the
A big steel ball, the 3rd groove and the 4th are provided with the first cavity formed between one groove and the not opening end of the second fixing groove
Groove is bonded to each other the second cavity to form a cirque structure, is provided with some small balls in the second cavity, big steel ball it is outer
Footpath is more than the external diameter of small ball；
The bellows cladding is arranged on the outside of lower valve rod, and the big cylindrical casing of bellows is coated on the middle part of lower valve rod
The outside of step, make the end face of the big cylindrical casing of bellows equal with the outerplanar edge step of the middle bench of lower valve rod,
And pass through welded seal；Pad is coated on outside lower valve rod, and the aperture of bushing is engaged with the small column sleeve pipe of bellows, is made small
For cylindrical casing through the aperture of pad, the flange protrusions position of aperture of the end face of small column sleeve pipe with padding is equal, and passes through
Welded seal；Valve element is locked by screw thread and is fixed on lower valve rod.
Above-mentioned HTHP gauge valve valve rod, wherein, the cooperation between the inwall of the bellows and lower valve rod bottom
Gap >=0.5mm, the inside clear length of the small column sleeve pipe of bellows is L8, h2-0.1mm≤L8≤h2+0.3mm.
Above-mentioned HTHP gauge valve valve rod, wherein, the cross sectional shape of second groove is ladder structure of right angle.
The beneficial effects of the utility model are：
The utility model changes the welding position of bellows and lower valve rod and pad, make bellows elastic deformation position and
Welding position separates, and is advantageous to improve the fatigue strength of bellows and weld seam, increases service life.
The force way of weld seam is changed, makes bead direction inconsistent with Impact direction, considerably increases the stabilization of weld seam
Property and reliability, improve anti-fatigue performance and service life.
The utility model stability is good, and operational flexibility is high, good airproof performance, improves anti-fatigue performance and service life.
Brief description of the drawings
Fig. 1 is the utility model section view.
Fig. 2 is the utility model lower valve rod and combined bellows sectional view.
Fig. 3 is the utility model bellows sectional view.
Fig. 4 is the utility model lower valve rod sectional view.
Fig. 5 is the utility model A-A sectional views.
Fig. 6 is that the utility model pads sectional view.
Embodiment
To make the technical solution of the utility model become apparent from clearly, below in conjunction with the accompanying drawings entering the utility model traveling one
Step description, any scheme drawn to the technical characteristic progress equivalencing of technical solutions of the utility model and conventional reasoning fall
Enter scope of protection of the utility model.
Reference
Upper valve rod 1, lower valve rod 2, bellows 3, pad 4, big cylindrical casing 5, small column sleeve pipe 6, lower valve rod top 7, under
Stem lower portion 8, the first groove 9, middle bench 10, the second groove 11, the 3rd groove 12, the first fixing groove 13, aperture 14, first
Passage 15, second channel 16, square groove 17, V-shaped groove 18, the second fixing groove 19, the 4th groove 20, big steel ball 21, small ball 22.
A kind of HTHP gauge valve valve rod as shown in the figure, including upper valve rod 1, lower valve rod 2, bellows 3 and pad 4；
The bellows is compressing by multilayer thin-walled alloy seamless pipe, and the both ends of bellows are respectively big cylindrical casing 5
With small column sleeve pipe 6, the outside diameter d 1 of big cylindrical casing is equal to the outside diameter d 2 of bellows, and the external diameter of small column sleeve pipe is d3, d1 ＞
d3；
Lower valve rod is separated into lower valve rod top 7 and lower valve rod bottom 8 by the lower valve rod by middle bench, on lower valve rod
The end face center in portion is provided with the first groove 9 that section is arc-shaped structure, and the upper surface of middle bench 10 is provided with what is caved inward
Second groove 11, forms edge step on middle bench, and the outer wall on lower valve rod top is circular arc knot provided with a ring cross-section
3rd groove 12 of structure, for the 3rd groove between the first groove and the second groove, the cross sectional shape of second groove is straight
Angle trapezium structure；The outer wall of middle bench is engaged with the inwall of the big cylindrical casing of bellows, and the length of middle bench is L1,
The inside clear length of the big cylindrical casing of bellows is L2, L2-0.1mm≤L1≤L2+0.3mm；Lower valve rod bottom is polished rod knot
Structure, the bottom of lower valve rod bottom are provided with the first fixing groove 13, and internal thread is provided with the first fixing groove, and the first fixing groove is used to fix
Valve element；
The pad is cylindrical structure, and aperture 14 is provided with pad, and aperture is by the first passage 15 that is interconnected and the
Two passages 16 are formed, and first passage and second channel are coaxially disposed, and the internal diameter d4 of first passage is more than the outside diameter d 5 of second channel,
The depth of first passage is h1, and the height of pad is h2, h1 ＜ h2 ÷ 2；Pad is provided with positioned at the end face of first passage side
One circle square groove 17, the width L3 of square groove is 1.5~3mm, depth L4 is 1~2mm；Pad is positioned at the end of second channel side
Face is provided with a circle V-shaped groove 18, the distance between V-shaped groove inner edge and second channel L6=1mm, the depth L7=1mm of V-shaped groove；
The upper valve rod bottom is provided with the second fixing groove 19 of one end open, and the not opening end of the second fixing groove is spherical crown knot
Structure, the inwall of the second fixing groove are provided with the 4th groove 20 of circle, and lower valve rod top is plug-type to be arranged in the second fixing groove,
Be provided with a big steel ball 21 in the first cavity formed between first groove and the not opening end of the second fixing groove, the 3rd groove with
4th groove is bonded to each other the second cavity to form a cirque structure, and some small balls 22, big steel are provided with the second cavity
The external diameter of ball is more than the external diameter of small ball；
The bellows cladding is arranged on the outside of lower valve rod, and the big cylindrical casing of bellows is coated on the middle part of lower valve rod
The outside of step, make the end face of the big cylindrical casing of bellows equal with the outerplanar edge step of the middle bench of lower valve rod,
And pass through welded seal；Pad is coated on outside lower valve rod, and the aperture of bushing is engaged with the small column sleeve pipe of bellows, is made small
For cylindrical casing through the aperture of pad, the flange protrusions position of aperture of the end face of small column sleeve pipe with padding is equal, and passes through
Welded seal；Valve element is locked by screw thread and is fixed on lower valve rod；Pad is installed to inside bonnet again, rotates upper valve rod
Drive bellows and lower valve rod to be promoted to topmost, after pad is entered the ad-hoc location inside bonnet, carry out bonnet and valve
The installation of body；Fit clearance >=0.5mm between the inwall of the bellows and lower valve rod bottom, the small column sleeve pipe of bellows
Inside clear length be L8, h2-0.1mm≤L8≤h2+0.3mm.
Claims (3)
1. HTHP gauge valve valve rod, it is characterized in that, including upper valve rod, lower valve rod, bellows and pad；
The bellows is compressing by multilayer thin-walled alloy seamless pipe, and the both ends of bellows are respectively big cylindrical casing and roundlet
Column sleeve pipe, the outside diameter d 1 of big cylindrical casing are equal to the outside diameter d 2 of bellows, and the external diameter of small column sleeve pipe is d3, d1 ＞ d3；
Lower valve rod is separated into lower valve rod top and lower valve rod bottom, the end on lower valve rod top by the lower valve rod by middle bench
Face center is provided with the first groove that section is arc-shaped structure, and the upper surface of middle bench is provided with the second groove to cave inward,
Edge step is formed on middle bench, the outer wall on lower valve rod top is recessed provided with the 3rd that a ring cross-section is arc-shaped structure
Groove, the 3rd groove is between the first groove and the second groove；The outer wall of middle bench and the big cylindrical casing of bellows it is interior
Wall is engaged, and the length of middle bench is L1, and the inside clear length of the big cylindrical casing of bellows is L2, and L2-0.1mm≤L1≤
L2+0.3mm；Lower valve rod bottom is polished rod structure, and the bottom of lower valve rod bottom is provided with the first fixing groove, is provided with the first fixing groove
Internal thread；
The pad is cylindrical structure, aperture is provided with pad, aperture is by interconnected first passage and second channel group
Into first passage and second channel are coaxially disposed, and the internal diameter d4 of first passage is more than the outside diameter d 5 of second channel, first passage
Depth is h1, and the height of pad is h2, h1 ＜ h2 ÷ 2；Pad is provided with a circle square groove positioned at the end face of first passage side,
The width L3 of square groove is 1.5~3mm, depth L4 is 1~2mm；Pad is provided with a circle V positioned at the end face of second channel side
Shape groove, the distance between V-shaped groove inner edge and second channel L6=1mm, the depth L7=1mm of V-shaped groove；
The upper valve rod bottom is provided with the second fixing groove of one end open, and the not opening end of the second fixing groove is spherical cap structure, the
The inwall of two fixing grooves is provided with the 4th groove of circle, and lower valve rod top is plug-type to be arranged in the second fixing groove, and first is recessed
A big steel ball, the 3rd groove and the 4th groove are provided with the first cavity formed between groove and the not opening end of the second fixing groove
The second cavity to form a cirque structure is bonded to each other, is provided with some small balls in the second cavity, the external diameter of big steel ball is big
In the external diameter of small ball；
The bellows cladding is arranged on the outside of lower valve rod, and the big cylindrical casing of bellows is coated on the middle bench of lower valve rod
Outside, make the end face of the big cylindrical casing of bellows equal with the outerplanar edge step of the middle bench of lower valve rod, and lead to
Cross welded seal；Pad is coated on outside lower valve rod, and the aperture of bushing is engaged with the small column sleeve pipe of bellows, makes small column
For sleeve pipe through the aperture of pad, the flange protrusions position of aperture of the end face of small column sleeve pipe with padding is equal, and passes through welding
Sealing；Valve element is locked by screw thread and is fixed on lower valve rod.
2. HTHP gauge valve valve rod as claimed in claim 1, it is characterized in that, the inwall and lower valve rod of the bellows
Fit clearance >=0.5mm between bottom, the inside clear length of the small column sleeve pipe of bellows is L8, h2-0.1mm≤L8≤h2
+0.3mm。
3. HTHP gauge valve valve rod as claimed in claim 1, it is characterized in that, the cross sectional shape of second groove is
Ladder structure of right angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720309132.1U CN206816948U (en) | 2017-03-28 | 2017-03-28 | HTHP gauge valve valve rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720309132.1U CN206816948U (en) | 2017-03-28 | 2017-03-28 | HTHP gauge valve valve rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206816948U true CN206816948U (en) | 2017-12-29 |
Family
ID=60752880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720309132.1U Active CN206816948U (en) | 2017-03-28 | 2017-03-28 | HTHP gauge valve valve rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206816948U (en) |
-
2017
- 2017-03-28 CN CN201720309132.1U patent/CN206816948U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202215817U (en) | Pipeline spherical valve with all-welded valve body | |
| CN207316217U (en) | High temperature high pressure valve bellows and its component | |
| CN107504195A (en) | A kind of high-temperature long life arranges alkali valve | |
| CN206816948U (en) | HTHP gauge valve valve rod | |
| WO2016155319A1 (en) | Multi-protection corrugated pipe stop valve for chlorine use | |
| CN205908795U (en) | Can dismantle valve seat seal structure reaches track ball valve including this seal structure | |
| CN206816833U (en) | HTHP bellows stop valve | |
| CN103591337A (en) | Three-valve group of corrugated pipe instrument | |
| CN106122509B (en) | A kind of floating ball valve | |
| CN207278923U (en) | A kind of double adapters of band lengthen welds buried fuel gas ball valve entirely | |
| CN106838454A (en) | High temperature high pressure valve bellows and its component | |
| CN205446787U (en) | Novel ball valve closure member reaches spherical monocline welding seam all -welded ball valve who contains it | |
| CN106051204A (en) | Ultra-large diameter all-welded ball valve sealing structure | |
| CN207364318U (en) | A kind of structure of high sealing liquid flow control ball valve easy to connection | |
| CN210920187U (en) | Corrugated pipe ball valve without outer leakage point | |
| CN202719180U (en) | Large-caliber all-welded ball valve | |
| CN206754452U (en) | A kind of ceramic ball valve | |
| CN203131127U (en) | Ultrahigh pressure grease injecting joint | |
| CN106015602A (en) | Sealing ring for ore pulp check valve | |
| CN107289153A (en) | A kind of T-shaped tee ball valve of high pressure | |
| CN106468291A (en) | Metal diaphragm separated accumulator | |
| CN217633980U (en) | Leakage-free pipe welding fixed ball valve | |
| CN205715771U (en) | A kind of structure that changes makes valve without the ball valve at dead angle | |
| CN2317375Y (en) | Medium-high-pressure bellow stop valve | |
| CN213809103U (en) | Novel effective big flux junction valve of PSP |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |