CN220151907U - High-strength anti-offset stop valve - Google Patents
High-strength anti-offset stop valve Download PDFInfo
- Publication number
- CN220151907U CN220151907U CN202321403210.6U CN202321403210U CN220151907U CN 220151907 U CN220151907 U CN 220151907U CN 202321403210 U CN202321403210 U CN 202321403210U CN 220151907 U CN220151907 U CN 220151907U
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- Prior art keywords
- valve
- clack
- seat
- rod
- valve clack
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- 238000007789 sealing Methods 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 230000002093 peripheral effect Effects 0.000 claims abstract description 9
- 238000013508 migration Methods 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 6
- 239000000945 filler Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Lift Valve (AREA)
Abstract
The utility model discloses a high-strength anti-offset stop valve, which is characterized by comprising a valve seat, a valve clack arranged in the valve seat and a driving wheel for driving the valve clack to displace, wherein the valve clack is connected with a valve rod; the valve rod is connected with the driving wheel; the driving wheel is positioned outside the valve seat; a sealing surface is arranged in the valve seat; the sealing surface is provided with a flow hole which is convenient for liquid circulation; after the valve clack is matched and abutted with the circulation hole, the liquid is stopped; the communicating hole is detachably provided with a matching seat; a valve cover is detachably arranged above the valve seat; the valve rod is arranged on the valve cover; a valve plug is arranged below the valve cover; the valve plug is arranged in a cylindrical shape; threads are arranged on the peripheral surface of the valve plug; a valve port matched with the valve plug is arranged above the valve seat; the valve plug is in threaded connection with the valve port; the valve rod passes through the valve cover and the valve plug to be connected with the valve clack, and the valve rod has the advantages of high strength, long service life, convenient use and difficult deviation.
Description
Technical Field
The present utility model relates to the field of shut-off valves, and more particularly it relates to a high strength and anti-migration shut-off valve.
Background
The shut-off valve is also called a shut-off valve, and belongs to a forced sealing type valve, so that when the valve is closed, pressure must be applied to the valve clack so as to force the sealing surface not to leak. When a medium enters the valve from the lower part of the valve clack, the resistance which needs to be overcome by the operation force is the friction force of the valve rod and the filler and the thrust generated by the pressure of the medium, and the force for closing the valve is larger than the force for opening the valve, so that the diameter of the valve rod is larger, otherwise, the valve rod is in a bending fault. The connection mode is divided into three types: flange connection, screw thread connection and welding connection. After the self-sealing valve appears, the medium flow direction of the stop valve is changed from the upper part of the valve clack to the valve cavity, at this time, under the action of medium pressure, the force for closing the valve is small, the force for opening the valve is large, and the diameter of the valve rod can be correspondingly reduced. At the same time, under the action of the medium, the valve in the form is also tighter. The valve 'three types' in China stipulates that the flow direction of the stop valve is uniformly from top to bottom. When the stop valve is opened, the opening height of the valve clack is 25-30% of the nominal diameter, and the flow rate is maximum, which means that the valve has reached the full-open position. The fully open position of the shut-off valve is determined by the stroke of the valve flap.
The opening and closing part of the stop valve is a plug-shaped valve clack, the sealing upper surface is a plane or a sea conical surface, and the valve clack moves linearly along the central line of the valve seat. The movement form of the valve rod also has a lifting rotary rod type which can be used for controlling the flow of various fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. Thus, a shut-off valve of this type is very suitable for shut-off or regulation and throttling. The valve rod of the valve has relatively short opening or closing stroke, has very reliable cutting function, and is very suitable for regulating flow rate due to the proportional relation between the change of the valve seat through opening and the stroke of the valve clack.
The existing stop valve is complex in structure, weak in stability, easy to wear in the use process, and capable of causing leakage and offset.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model aims to provide the high-strength anti-offset stop valve which has the advantages of high strength, long service life, convenient use and difficult offset.
In order to achieve the above purpose, the present utility model provides the following technical solutions: high strength and prevent stop valve of skew, including the disk seat, set up the valve clack in the disk seat to and the drive wheel of drive valve clack displacement, its characterized in that: the valve clack is connected with the valve rod; the valve rod is connected with the driving wheel; the driving wheel is positioned outside the valve seat; a sealing surface is arranged in the valve seat; the sealing surface is provided with a flow hole which is convenient for liquid circulation; after the valve clack is matched and abutted with the circulation hole, the liquid is stopped; the communicating hole is detachably provided with a matching seat.
Through among the above-mentioned structural design, in long-time use, because the upper and lower displacement of valve clack, to the impact and the friction of sealed face for valve clack and sealed face wear, according to sealed not tight, the effect of liquid leakage, consequently, set up the cooperation seat on sealed face, replace sealed face and valve clack contact through the cooperation seat, after the cooperation seat wearing and tearing, can replace the cooperation seat, thereby increase of service life, the stability of improvement operation prevents the valve plate skew, improves seal strength.
The utility model is further provided with: a valve cover is detachably arranged above the valve seat; the valve rod is arranged on the valve cover; a valve plug is arranged below the valve cover; the valve plug is arranged in a cylindrical shape; threads are arranged on the peripheral surface of the valve plug; a valve port matched with the valve plug is arranged above the valve seat; the valve plug is in threaded connection with the valve port; the valve rod passes through the valve cover and the valve plug to be connected with the valve clack.
Through above-mentioned structure setting, the valve gap can be dismantled, after dismantling the valve gap, can be convenient replace inside cooperation seat and valve clack, facilitate the use, and the valve plug diameter is less than the valve gap diameter, outside the valve plug, the position under the valve gap can set up sealing gasket, plays sealed effect.
The utility model is further provided with: the matching seat is annular; the outer peripheral surface of the matching seat is provided with external threads; an annular thread groove is formed in the inner wall of the upper end of the flow hole; the matching seat is in threaded connection with the annular thread groove; the diameter of the inner ring of the matching seat is consistent with the diameter of the lower end of the circulation hole.
Through above-mentioned structure setting, can dismantle the connection through threaded connection's mode, cooperation seat inner circle diameter is unanimous with the circulation hole lower extreme diameter, can stretch into the circulation hole lower extreme when the valve clack joins in marriage, cooperates with the circulation hole inner wall, realizes better sealed effect.
The utility model is further provided with: the valve clack is rotationally connected to the valve rod; the lower end of the valve rod is provided with an annular bulge; the valve clack comprises an upper valve clack and a lower valve clack; the upper valve clack is annular, the valve rod penetrates through the upper valve clack, and the upper valve clack is limited by the annular bulge; the peripheral surface of the upper valve clack is provided with external threads; a relief notch is formed in the middle of the upper end of the lower valve clack; the lower end of the valve rod and the upper valve clack are positioned in the abdication notch; and an internal thread is arranged in the relief notch to realize threaded connection with the upper valve clack.
Through the setting of above-mentioned structure, the valve clack can dismantle the setting equally, after the valve gap is taken down, can dismantle the cooperation seat, also can dismantle the valve clack, realizes both's replacement, increase of service life, but the rotatable setting of valve clack moreover, like this at the in-process that the valve rod rotates to descend or rise, can reduce the friction of valve plate and cooperation seat.
The utility model is further provided with: when the lower end of the lower valve clack is matched and abutted with the matching seat, the liquid is stopped; the upper end of the valve cover is provided with a mounting end; the valve rod is in threaded connection with the mounting end; the valve rod passes through the mounting end and is fixedly connected with the driving wheel.
Through the arrangement of the structure, the installation end structure is a limit structure, and the fit clearance between the valve cover and the valve rod is provided with the filler for sealing.
Drawings
FIG. 1 is a schematic diagram of the structure of the present embodiment
Fig. 2 is a sectional view of the present embodiment.
Reference numerals: 1. a valve seat; 2. a driving wheel; 3. a valve stem; 4. sealing surfaces; 5. a flow hole; 6. a mating seat; 7. a valve cover; 8. a valve plug; 9. an annular thread groove; 10. an annular protrusion; 11. an upper valve clack; 12. a lower valve clack; 13. and a mounting end.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings.
The embodiment discloses high strength and prevent stop valve of skew, like fig. 1, 2 have intensity height, long service life, facilitate the use, difficult skew beneficial effect. The valve comprises a valve seat 1, a valve clack arranged in the valve seat 1 and a driving wheel 2 for driving the valve clack to displace, wherein the valve clack is connected with a valve rod 3; the valve rod 3 is connected with the driving wheel 2; the driving wheel 2 is positioned outside the valve seat 1; a sealing surface 4 is arranged in the valve seat 1; the sealing surface 4 is provided with a flow hole 5 which is convenient for liquid circulation; after the valve clack is matched and abutted with the circulation hole 5, the liquid is stopped; the circulation hole 5 is detachably provided with a matching seat 6.
Through among the above-mentioned structural design, in long-time use, because the upper and lower displacement of valve clack, impact and friction to sealed face 4 for valve clack and sealed face 4 wearing and tearing, it is not tight to shine to seal, and the effect of liquid leakage, consequently, set up cooperation seat 6 on sealed face 4, replace sealed face 4 and valve clack contact through cooperation seat 6, after cooperation seat 6 wearing and tearing, can replace cooperation seat 6, thereby increase of service life, the stability of improvement operation prevents the valve plate skew, improves seal strength.
A valve cover 7 is detachably arranged above the valve seat 1; the valve rod 3 is arranged on the valve cover 7; a valve plug 8 is arranged below the valve cover 7; the valve plug 8 is arranged in a cylindrical shape; threads are arranged on the outer circumferential surface of the valve plug 8; a valve port matched with the valve plug 8 is arranged above the valve seat 1; the valve plug 8 is in threaded connection with the valve port; the valve rod 3 passes through a valve cover 7 and a valve plug 8 to be connected with the valve clack.
Through above-mentioned structure setting, valve gap 7 can dismantle, after dismantling valve gap 7, can be convenient replace inside cooperation seat 6 and valve clack, facilitate the use, and valve plug 8 diameter is less than valve gap 7 diameter, outside valve plug 8, the position under valve gap 7 can set up sealing gasket, plays sealed effect.
The matching seat 6 is provided with a ring shape; the outer peripheral surface of the matching seat 6 is provided with external threads; an annular thread groove 9 is formed in the inner wall of the upper end of the circulation hole 5; the matching seat 6 is in threaded connection with the annular thread groove 9; the diameter of the inner ring of the matching seat 6 is consistent with the diameter of the lower end of the circulation hole 5.
Through above-mentioned structure setting, can dismantle the connection through threaded connection's mode, the cooperation seat 6 inner circle diameter is unanimous with circulation hole 5 lower extreme diameter, can stretch into circulation hole 5 lower extreme when the valve clack joins in marriage, with the cooperation of circulation hole 5 inner wall, realizes better sealed effect.
The valve clack is rotationally connected to the valve rod 3; the lower end of the valve rod 3 is provided with an annular bulge 10; the valve clack comprises an upper valve clack 11 and a lower valve clack 12; the upper valve clack 11 is arranged in an annular shape, the valve rod 3 passes through the upper valve clack 11, and the upper valve clack 11 is limited by the annular protrusion 10; an external thread is arranged on the peripheral surface of the upper valve clack 11; a relief notch is formed in the middle of the upper end of the lower valve clack; the lower end of the valve rod 3 and the upper valve clack 11 are positioned in the relief notch; and an internal thread is arranged in the relief notch to realize threaded connection with the upper valve clack 11.
Through the above structure setting, the valve clack can dismantle the setting equally, after valve gap 7 takes off, can dismantle cooperation seat 6, also can dismantle the valve clack, realizes both's replacement, increase of service life, but the rotatable setting of valve clack moreover, at valve rod 3 rotation decline or the in-process that rises like this, can reduce the friction of valve plate and cooperation seat 6.
When the lower end of the lower valve clack 12 is matched and abutted with the matching seat 6, the liquid is stopped; the upper end of the valve cover 7 is provided with a mounting end 13; the valve rod 3 is in threaded connection with the mounting end 13; the valve rod 3 passes through the mounting end 13 and is fixedly connected with the driving wheel 2.
Through the structure setting, the installation end 13 structure is limit structure, is provided with the filler in the fit clearance of valve gap 7 and valve rod 3, seals.
The above embodiments are only preferred embodiments of the present utility model, and are not intended to limit the present utility model, and any modifications, equivalent substitutions, improvements, etc. within the design concept of the present utility model should be included in the scope of the present utility model.
Claims (5)
1. High strength and prevent stop valve of skew, including disk seat (1), set up the valve clack in disk seat (1) to and drive wheel (2) of drive valve clack displacement, its characterized in that: the valve clack is connected with the valve rod (3); the valve rod (3) is connected with the driving wheel (2); the driving wheel (2) is positioned outside the valve seat (1); a sealing surface (4) is arranged in the valve seat (1); the sealing surface (4) is provided with a flow hole (5) which is convenient for liquid circulation; after the valve clack is matched and abutted with the circulation hole (5), the liquid is stopped; the circulating hole (5) is detachably provided with a matching seat (6).
2. The high strength, anti-migration shut-off valve of claim 1, wherein: a valve cover (7) is detachably arranged above the valve seat (1); the valve rod (3) is arranged on the valve cover (7); a valve plug (8) is arranged below the valve cover (7); the valve plug (8) is arranged in a cylindrical shape; threads are arranged on the outer peripheral surface of the valve plug (8); a valve port matched with the valve plug (8) is arranged above the valve seat (1); the valve plug (8) is in threaded connection with the valve port; the valve rod (3) passes through the valve cover (7) and the valve plug (8) to be connected with the valve clack.
3. The high strength, anti-migration shut-off valve of claim 2, wherein: the matching seat (6) is provided with a ring shape; the outer peripheral surface of the matching seat (6) is provided with external threads; an annular thread groove (9) is formed in the inner wall of the upper end of the circulation hole (5); the matching seat (6) is in threaded connection with the annular thread groove (9); the diameter of the inner ring of the matching seat (6) is consistent with the diameter of the lower end of the circulation hole (5).
4. A high strength and anti-migration shut off valve as in claim 3 wherein: the valve clack is rotationally connected to the valve rod (3); the lower end of the valve rod (3) is provided with an annular bulge (10); the valve clack comprises an upper valve clack (11) and a lower valve clack (12); the upper valve clack (11) is arranged in an annular shape, the valve rod (3) penetrates through the upper valve clack (11), and the upper valve clack (11) is limited by the annular protrusion (10); an external thread is arranged on the peripheral surface of the upper valve clack (11); a relief notch is formed in the middle of the upper end of the lower valve clack; the lower end of the valve rod (3) and the upper valve clack (11) are positioned in the abdication notch; and an internal thread is arranged in the yielding gap to realize threaded connection with the upper valve clack (11).
5. The high strength, anti-migration shut-off valve of claim 4, wherein: when the lower end of the lower valve clack (12) is matched and abutted with the matching seat (6), the liquid is stopped; the upper end of the valve cover (7) is provided with a mounting end (13); the valve rod (3) is in threaded connection with the mounting end (13); the valve rod (3) penetrates through the mounting end (13) and is fixedly connected with the driving wheel (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321403210.6U CN220151907U (en) | 2023-06-05 | 2023-06-05 | High-strength anti-offset stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321403210.6U CN220151907U (en) | 2023-06-05 | 2023-06-05 | High-strength anti-offset stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220151907U true CN220151907U (en) | 2023-12-08 |
Family
ID=89020145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321403210.6U Active CN220151907U (en) | 2023-06-05 | 2023-06-05 | High-strength anti-offset stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220151907U (en) |
-
2023
- 2023-06-05 CN CN202321403210.6U patent/CN220151907U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |