CN108591598B - Sealing structure for middle shaft of stop valve - Google Patents
Sealing structure for middle shaft of stop valve Download PDFInfo
- Publication number
- CN108591598B CN108591598B CN201810414664.0A CN201810414664A CN108591598B CN 108591598 B CN108591598 B CN 108591598B CN 201810414664 A CN201810414664 A CN 201810414664A CN 108591598 B CN108591598 B CN 108591598B
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- Prior art keywords
- sealing
- miniature
- gear
- annular
- packing
- Prior art date
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- 238000007789 sealing Methods 0.000 title claims abstract description 88
- 238000012856 packing Methods 0.000 claims abstract description 82
- 239000000945 filler Substances 0.000 claims abstract description 21
- 239000011806 microball Substances 0.000 claims abstract description 6
- 239000011805 ball Substances 0.000 claims description 33
- 210000004907 gland Anatomy 0.000 claims description 23
- 238000009434 installation Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 230000032683 aging Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
- Mechanically-Actuated Valves (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention provides a sealing structure of a middle shaft of a stop valve, which comprises a valve body, an assembly hole, a middle shaft, a sealing component and an ejection component, wherein the middle shaft is assembled in the assembly hole, the sealing component is arranged between the middle shaft and the valve body, the ejection component is arranged in the valve body at the lower side of the sealing component, the sealing component comprises a concave table, a first sealing O-shaped packing, a 304 bracket, an annular groove, a second sealing O-shaped packing, a V-shaped packing, a pressing sleeve, a V-shaped groove, a pressing cover and a connecting piece, and the ejection component comprises a blind hole, a micro screw rod, a micro ball nut seat, a micro gear, a micro annular gear, a sealing plug, a sliding groove, a sliding block, a rack bar, a through hole and an annular mounting cavity: the sealing effect is improved, the occurrence of vibration failure is avoided, the ejection of the sealing O-shaped filler I, the sealing O-shaped filler II, the sealing O-shaped filler 304 bracket and the V-shaped filler is facilitated, and the replacement is convenient.
Description
Technical Field
The invention relates to a sealing structure of a middle shaft of a stop valve, and belongs to the technical field of valve bodies.
Background
In the prior art, a common sealing structure of a middle shaft of the stop valve generally adopts V-shaped filler, PTFE filler or graphite filler is woven, and the sealing structure of the middle shaft can be used under common working conditions, but the sealing performance of the sealing structure of the middle shaft of the stop valve can be greatly weakened under vibration environments such as a motor car, and the sealing structure of the middle shaft of the stop valve is often leaked after the sealing structure is used for a period of time, and the sealing structure of the middle shaft of the stop valve is inconvenient to take out and complicated to replace after the sealing structure is damaged, so the sealing structure of the middle shaft of the stop valve is needed to solve the problems.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide a sealing structure of a middle shaft of a stop valve so as to solve the problems in the background art.
In order to achieve the above object, the present invention is realized by the following technical scheme: the utility model provides a stop valve axis seal structure, includes valve body, pilot hole, axis, seal assembly and ejecting subassembly, the pilot hole is seted up in the valve body upper end, the axis is assembled inside the pilot hole, seal assembly sets up between axis and valve body, ejecting subassembly is installed inside the valve body of seal assembly downside, seal assembly includes concave station, sealed O type packing one, 304 support, annular groove, sealed O type packing two, V type packing, pressure cover, V type recess, gland and connecting piece, ejecting subassembly includes blind hole, miniature lead screw, miniature ball nut seat, miniature gear, miniature ring gear, sealing plug, spout, slider, rack bar, through-hole and annular installation cavity.
Further, in the seal assembly, the concave station is set up in the inside upper end of pilot hole, 304 support mounting is at the inside lower extreme of concave station, and 304 support inside is equipped with the axis, 304 support lower extreme face edge position processing has the ring channel, ring channel inside is equipped with sealed O type packing one, and sealed O type packing one surface is laminated with the concave station inner wall mutually, 304 support inside annular side has seted up annular groove, and annular groove inside is equipped with sealed O type packing two, and sealed O type packing lateral surface and the inseparable laminating of axis annular side, the V type packing is installed to 304 support upper end, V type packing upper end is provided with the pressure cover, and the pressure cover is furnished with at axis annular side, pressure cover upper end is equipped with the gland, the gland is connected with the valve body through the connecting piece, the connecting piece lower extreme is connected with the valve body.
Furthermore, the first sealing O-shaped filler and the second sealing O-shaped filler are fillers with compensation functions, in the practical use process, when the device receives vibration force, the vibration force acts on the 304 bracket, the first sealing O-shaped filler and the second sealing O-shaped filler, and the first sealing O-shaped filler and the second sealing O-shaped filler are provided with compensation functions, so that the device can adapt to vibration environments and can effectively avoid the condition of sealing aging by matching with the V-shaped filler.
Further, the upper end of the connecting piece is provided with external threads, the upper end of the connecting piece penetrates through the gland and is provided with the nut, in the actual use process, after the 304 bracket and the V-shaped packing are assembled in the assembly hole, the compression ring is assembled on the annular side face of the center shaft, then the gland is assembled at the upper end of the compression ring and penetrates through the upper end of the connecting piece, the nut is assembled at the upper end of the connecting piece on the upper side of the gland, the nut is rotated, the nut drives the gland to move downwards, so that the gland is compressed at the upper end of the compression ring, the fixation of the V-shaped packing and the 304 bracket is realized, and the installation of the V-shaped packing and the 304 bracket is facilitated.
Further, in the ejecting subassembly, the blind hole has all been seted up on mounting hole downside left side and right side, the inside miniature lead screw that is provided with of blind hole, miniature lead screw assembly is inside miniature ball nut seat, miniature ball nut seat assembly is inside annular installation cavity, annular installation cavity is seted up inside the valve body in the blind hole outside, miniature ball nut seat annular side-mounting has the pinion, the pinion outside is equipped with miniature ring gear, miniature ring gear installs inside annular installation cavity, and miniature ring gear meshes with the pinion through the teeth of a cogwheel, the spout has all been seted up to annular installation cavity inside upside and downside, spout inside is equipped with the slider, miniature ring gear up terminal surface and lower extreme are connected with the slider respectively, the through-hole has been seted up inside the valve body on annular installation cavity right side, through-hole inside assembly is at the rack pole, miniature ring gear annular side processing has the outer gear, the rack pole meshes with the outer gear through the teeth of a cogwheel.
Further, the handle is installed to rack bar front end, the inside upside and the downside of through-hole all process has the guide way, rack bar up end and lower terminal surface all are fixed with the guide block, and the guide block assembly is inside the guide way, in the in-service use, promotes the handle backward, and the handle removes and drives rack bar and remove backward, because rack bar and outer gear tooth mesh mutually, so rack bar removes and drives miniature ring gear and rotates, and miniature ring gear rotates and drives the slider and remove in the spout inside, and miniature ring gear drives miniature gear rotation simultaneously, and miniature gear rotation drives miniature ball nut seat and rotates, has realized the transmission of power.
Further, the miniature ball nut seat is connected with the miniature screw rod through the ball nut pair, the ball is all installed to miniature ball nut seat and miniature gear upside and downside, in the in-service use, when needing to take out seal assembly, dismantle gland and clamping ring, when miniature ball nut seat rotates, the ball nut pair converts the rotary motion of miniature ball nut seat into rectilinear motion, thereby miniature screw rod upwards moves, miniature screw rod removes and drives the sealing plug upwards to remove, the sealing plug removes and drives sealed O type packing one and 304 support upwards to remove, then drive V type packing upwards to remove sealed O type packing one, sealed O type packing two, 304 support and V type packing, be convenient for sealed O type packing one, sealed O type packing two, 304 support and V type packing take out, change conveniently.
The invention has the beneficial effects that: according to the sealing structure of the middle shaft of the stop valve, the concave table, the first sealing O-shaped packing, the 304 bracket, the annular groove, the second sealing O-shaped packing, the V-shaped packing, the pressing sleeve, the V-shaped groove, the pressing cover and the connecting piece are added, so that the sealing effect is improved, and the situation of vibration failure is avoided.
Because the blind hole, the miniature screw rod, the miniature ball nut seat, the miniature gear, the miniature annular gear, the sealing plug, the sliding chute, the sliding block, the rack bar, the through hole and the annular mounting cavity are added, the ejection of the sealing O-shaped packing I, the sealing O-shaped packing II, the sealing O-shaped packing 304 bracket and the V-shaped packing is facilitated, and the replacement is convenient.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a schematic structural view of a shaft seal structure of a stop valve according to the present invention;
FIG. 2 is a schematic view of a seal assembly in a shaft seal structure of a shut-off valve according to the present invention;
FIG. 3 is a schematic diagram of the structure of an ejector assembly in a shaft sealing structure of a stop valve according to the present invention;
FIG. 4 is an enlarged schematic view of the A-position of the ejector assembly in the axial sealing structure of the stop valve;
In the figure: 1-valve body, 2-assembly hole, 3-medial axis, 4-seal assembly, 5-ejection assembly, 401-concave table, 402-seal O-shaped packing I, 403-304 bracket, 404-annular groove, 405-seal O-shaped packing II, 406-V-shaped packing, 407-press sleeve, 408-V-shaped groove, 409-gland, 410-connector, 501-blind hole, 502-micro screw rod, 503-micro ball nut seat, 504-micro gear, 505-micro annular gear, 506-sealing plug, 507-chute, 508-slide block, 509-rack bar, 510-through hole, 511-annular mounting cavity.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a stop valve axis seal structure, including valve body 1, mounting hole 2, axis 3, seal assembly 4 and ejecting subassembly 5, mounting hole 2 is seted up in valve body 1 upper end, axis 3 assembles in mounting hole 2 inside, seal assembly 4 sets up between axis 3 and valve body 1, ejecting subassembly 5 is installed in the valve body 1 of seal assembly 4 downside inside, seal assembly 4 includes concave station 401, seal O type packing one 402, 304 support 403, annular groove 404, seal O type packing two 405, V type packing 406, press cover 407, V type recess 408, gland 409 and connecting piece 410, ejecting subassembly 5 includes blind hole 501, miniature lead screw 502, miniature ball nut seat 503, miniature gear 504, miniature ring 505, sealing plug 506, spout 507, slider 508, rack 509, through-hole 510 and annular installation cavity 511.
In the sealing assembly 4, a concave table 401 is arranged at the upper end inside a mounting hole 2, a 304 bracket 403 is arranged at the lower end inside the concave table 401, a center shaft 3 is assembled inside the 304 bracket 403, an annular groove is processed at the edge position of the lower end face of the 304 bracket 403, a sealing O-shaped packing I402 is assembled inside the annular groove, the outer surface of the sealing O-shaped packing I402 is attached to the inner wall of the concave table 401, an annular groove 404 is arranged on the annular side face inside the 304 bracket 403, a sealing O-shaped packing II 405 is assembled inside the annular groove 404, the outer side face of the sealing O-shaped packing II 405 is tightly attached to the annular side face of the center shaft 3, a V-shaped packing 406 is arranged at the upper end of the 304 bracket 403, a pressing sleeve 407 is assembled on the annular side face of the center shaft 3, a pressing cover 409 is assembled at the upper end of the pressing sleeve 407, the pressing cover 409 is connected with the valve body 1 through a connecting piece 410, and the lower end of the connecting piece 410 is connected with the valve body 1.
In the ejection assembly 5, the left side and the right side of the lower side of the assembly hole 2 are provided with blind holes 501, the inside of the blind holes 501 is provided with micro screw rods 502, the micro screw rods 502 are assembled inside micro ball nut seats 503, the micro ball nut seats 503 are assembled inside annular mounting cavities 511, the annular mounting cavities 511 are formed inside valve bodies 1 outside the blind holes 501, the annular side surfaces of the micro ball nut seats 503 are provided with micro gears 504, the outer sides of the micro gears 504 are provided with micro annular gears 505, the micro annular gears 505 are mounted inside the annular mounting cavities 511, the micro annular gears 505 are meshed with the micro gears 504 through gear teeth, the upper side and the lower side of the inside of the annular mounting cavities 511 are provided with sliding grooves 507, sliding blocks 508 are assembled inside the sliding grooves 507, the upper end surfaces and the lower ends of the micro annular gears 505 are respectively connected with the sliding blocks 508, through holes 510 are formed inside the valve bodies 1 on the right side of the annular mounting cavities 511, the through holes 510 are internally assembled inside rack bars 509, the annular sides of the micro annular gears 505 are provided with outer gear teeth, and the rack bars 509 are meshed with the outer gear teeth through the gear teeth.
As an embodiment of the present invention: the first sealing O-shaped packing 402 and the second sealing O-shaped packing 405 are both packing with compensation functions, and in the actual use process, when the device receives vibration force, the vibration force acts on the 304 support 403, the first sealing O-shaped packing 402 and the second sealing O-shaped packing 405, and the first sealing O-shaped packing 402 and the second sealing O-shaped packing 405 are both provided with compensation functions, so that the device can adapt to vibration environments and can effectively avoid the occurrence of sealing aging by matching with the V-shaped packing 406.
As an embodiment of the present invention: the upper end of the connecting piece 410 is provided with external threads, the upper end of the connecting piece 410 passes through the gland 409 and is provided with a nut, in the actual use process, after the 304 bracket 403 and the V-shaped packing 406 are assembled into the assembly hole 2, the press sleeve 407 is assembled on the annular side surface of the center shaft 3, then the gland 409 is assembled on the upper end of the press sleeve 407 and passes through the upper end of the connecting piece 410, the nut is assembled on the upper end of the connecting piece 410 on the upper side of the gland 409, and then the nut is rotated to enable the nut to drive the gland 409 to move downwards, so that the gland 409 is pressed on the upper end of the press sleeve 407, the V-shaped packing 406 and the 304 bracket 403 are fixed, and the V-shaped packing 406 and the 304 bracket 403 are convenient to install.
As an embodiment of the present invention: the handle is installed to rack bar 509 front end, the inside upside and downside of through-hole 510 all are processed and are had the guide way, rack bar 509 up end and lower terminal surface all are fixed with the guide block, and the guide block assembly is inside the guide way, in the in-service use, push handle backward, the handle removes and drives rack bar 509 and remove backward, because rack bar 509 meshes with the outer gear tooth, so rack bar 509 removes and drives miniature ring gear 505 and rotates, miniature ring gear 505 rotates and drives slider 508 and remove in spout 507 inside, miniature ring gear 505 drives miniature gear 504 and rotates simultaneously, miniature gear 504 rotates and drives miniature ball nut seat 503 and rotate, the transmission of power has been realized.
As an embodiment of the present invention: the miniature ball nut seat 503 is connected with the miniature screw rod 502 through the ball nut pair, the miniature ball nut seat 503 and the upper side and the lower side of the miniature gear 504 are respectively provided with balls, in the actual use process, when the sealing component 4 needs to be taken out, the gland 409 and the pressing sleeve 407 are detached, and when the miniature ball nut seat 503 rotates, the ball nut pair converts the rotation motion of the miniature ball nut seat 503 into linear motion, so that the miniature screw rod 502 moves upwards, the miniature screw rod 502 moves to drive the sealing plug 506 to move upwards, the sealing plug 506 moves to drive the sealing O-shaped packing I402 and the sealing O-shaped packing 304 bracket 403 to move upwards, and then the V-shaped packing 406 is driven to move upwards, so that the sealing O-shaped packing I402, the sealing O-shaped packing II 405, the sealing O-shaped packing 304 bracket 403 and the V-shaped packing 406 are conveniently taken out of the assembly hole 2, and the sealing O-shaped packing 406 are conveniently replaced.
While the fundamental and principal features of the invention and advantages of the invention have been shown and described, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (4)
1. The utility model provides a stop valve axis seal structure, includes valve body, pilot hole, axis, seal assembly and ejecting subassembly, its characterized in that: the assembly hole is formed in the upper end of the valve body, the center shaft is assembled in the assembly hole, the sealing assembly is arranged between the center shaft and the valve body, the ejection assembly is arranged in the valve body at the lower side of the sealing assembly, the sealing assembly comprises a concave table, a first sealing O-shaped packing, a 304 bracket, an annular groove, a second sealing O-shaped packing, a V-shaped packing, a pressing sleeve, a V-shaped groove, a gland and a connecting piece, and the ejection assembly comprises a blind hole, a micro screw rod, a micro ball nut seat, a micro gear, a micro inner gear ring, a sealing plug, a sliding groove, a sliding block, a rack rod, a through hole and an annular mounting cavity;
In the sealing assembly, the concave table is arranged at the upper end in the assembly hole, the 304 bracket is arranged at the lower end in the concave table, a center shaft is assembled in the 304 bracket, an annular groove is processed at the edge of the lower end surface of the 304 bracket, a sealing O-shaped filler I is assembled in the annular groove, the outer surface of the sealing O-shaped filler I is attached to the inner wall of the concave table, an annular groove is arranged on the annular side surface in the 304 bracket, a sealing O-shaped filler II is assembled in the annular groove, the outer side surface of the sealing O-shaped filler is tightly attached to the annular side surface of the center shaft, a V-shaped filler is arranged at the upper end of the 304 bracket, a pressing sleeve is arranged at the upper end of the V-shaped filler, the pressing sleeve is assembled on the annular side surface of the center shaft in a pressing mode, the pressing cover is connected with the valve body through a connecting piece, and the lower end of the connecting piece is connected with the valve body;
In the ejection assembly, blind holes are formed in the left side and the right side of the lower side of the assembly hole, a miniature screw rod is arranged in the blind holes, the miniature screw rod is assembled in a miniature ball nut seat, the miniature ball nut seat is assembled in an annular mounting cavity, the annular mounting cavity is formed in a valve body outside the blind holes, a miniature gear is arranged on the annular side surface of the miniature ball nut seat, a miniature annular gear is assembled outside the miniature gear, the miniature annular gear is arranged in the annular mounting cavity, the miniature annular gear is meshed with the miniature gear through gear teeth, sliding grooves are formed in the upper side and the lower side of the annular mounting cavity, a sliding block is assembled in the sliding grooves, the upper end face and the lower end of the miniature annular gear are respectively connected with the sliding block, a through hole is formed in the valve body on the right side of the annular mounting cavity, the through hole is internally assembled in a rack bar, an annular side surface of the miniature annular gear is provided with outer gear teeth, and the rack bar is meshed with the outer gear teeth through the gear teeth;
The handle is installed to rack bar front end, the inside upside and the downside of through-hole all process has the guide way, rack bar up end and lower terminal surface all are fixed with the guide block, and the guide block assembly is inside the guide way, in the in-service use, promotes the handle backward, and the handle removes and drives rack bar and move backward, because rack bar meshes with outer gear tooth, so rack bar removes and drives miniature ring gear and rotates, and miniature ring gear rotates and drives the slider and move in the spout inside, and miniature ring gear drives miniature gear and rotates simultaneously, and miniature gear rotates and drives miniature ball nut seat and rotate, has realized the transmission of power.
2. The shut-off valve bottom bracket bearing seal structure of claim 1, wherein: the first sealing O-shaped packing and the second sealing O-shaped packing are both packing with compensation functions, in the actual use process, when the device receives vibration force, the vibration force acts on the 304 bracket, the first sealing O-shaped packing and the second sealing O-shaped packing, and the first sealing O-shaped packing and the second sealing O-shaped packing are both provided with compensation functions, so that the device can adapt to vibration environment and can be matched with the V-shaped packing, and the situation of sealing aging can be effectively avoided.
3. The shut-off valve bottom bracket bearing seal structure of claim 1, wherein: the connecting piece upper end processing has the external screw thread, and the connecting piece upper end passes the gland, and be equipped with the nut, in the in-service use, assemble 304 support and V type packing to the inside back of pilot shaft annular side with the clamping ring, then assemble the gland on the clamping ring, and pass the connecting piece upper end, assemble the nut behind the connecting piece upper end of gland upside, rotatory nut makes the nut drive the gland and moves down, thereby compress tightly the gland in the clamping ring upper end, realize V type packing and 304 support's fixed, be convenient for V type packing and 304 support's installation.
4. The shut-off valve bottom bracket bearing seal structure of claim 1, wherein: the miniature ball nut seat is connected with the miniature screw rod through the ball nut pair, the ball is all installed to miniature ball nut seat and miniature gear upside and downside, in the in-service use, when needing to take out seal assembly, dismantle gland and clamping ring, miniature ball nut seat rotates, the ball nut pair converts the rotary motion of miniature ball nut seat into rectilinear motion, thereby miniature screw rod upwards moves, miniature screw rod moves and drives the sealing plug upwards to move, the sealing plug moves and drives sealed O type packing one and 304 support upwards to move, then drive V type packing upwards to with sealed O type packing one, sealed O type packing two, 304 support and V type packing shift out the pilot hole, be convenient for sealed O type packing one, sealed O type packing two, 304 support and V type packing take out, change conveniently.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810414664.0A CN108591598B (en) | 2018-05-03 | 2018-05-03 | Sealing structure for middle shaft of stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810414664.0A CN108591598B (en) | 2018-05-03 | 2018-05-03 | Sealing structure for middle shaft of stop valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108591598A CN108591598A (en) | 2018-09-28 |
| CN108591598B true CN108591598B (en) | 2024-04-26 |
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ID=63620590
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810414664.0A Active CN108591598B (en) | 2018-05-03 | 2018-05-03 | Sealing structure for middle shaft of stop valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN108591598B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109200819B (en) * | 2018-10-29 | 2021-06-25 | 江苏科技大学 | Ship tail gas treatment device and dual-rotor hypergravity reactor thereof |
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| US4532987A (en) * | 1984-02-21 | 1985-08-06 | Reed Lehman T | Geothermal expansion spool piston |
| CN1236422A (en) * | 1996-10-31 | 1999-11-24 | 费希尔控制国际公司 | Bushing-less stem guide control valve |
| CN2688985Y (en) * | 2004-02-02 | 2005-03-30 | 深圳市日通科技有限公司 | Spiral motor valve for controlling intelligent gasometer |
| CN201909103U (en) * | 2010-12-31 | 2011-07-27 | 兰州高压阀门有限公司 | Filler internal pressure automatic seal valve capable of forming self-tight seal |
| CN103671929A (en) * | 2012-09-17 | 2014-03-26 | 林州重机集团股份有限公司 | Novel full-sealing device for cutting component of roadheader |
| CN206409655U (en) * | 2017-01-19 | 2017-08-15 | 苏州工业园区思达德阀门有限公司 | A kind of buried gate valve of cast steel |
| CN206668980U (en) * | 2017-04-05 | 2017-11-24 | 宁波万诺宝通机电制造有限公司 | A kind of two-way no stall intelligent gas meter motor valve |
| CN206973033U (en) * | 2017-06-19 | 2018-02-06 | 中山铁王流体控制设备有限公司 | A kind of ball arm integrated Fluorine-lined ball valve of long-life anti-side grinding |
| CN208331426U (en) * | 2018-05-03 | 2019-01-04 | 中山铁王流体控制设备有限公司 | Axle sealing structure in a kind of shut-off valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20018562U1 (en) * | 2000-10-30 | 2002-03-21 | CAMERON GmbH, 29227 Celle | Shut-off |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4532987A (en) * | 1984-02-21 | 1985-08-06 | Reed Lehman T | Geothermal expansion spool piston |
| CN1236422A (en) * | 1996-10-31 | 1999-11-24 | 费希尔控制国际公司 | Bushing-less stem guide control valve |
| CN2688985Y (en) * | 2004-02-02 | 2005-03-30 | 深圳市日通科技有限公司 | Spiral motor valve for controlling intelligent gasometer |
| CN201909103U (en) * | 2010-12-31 | 2011-07-27 | 兰州高压阀门有限公司 | Filler internal pressure automatic seal valve capable of forming self-tight seal |
| CN103671929A (en) * | 2012-09-17 | 2014-03-26 | 林州重机集团股份有限公司 | Novel full-sealing device for cutting component of roadheader |
| CN206409655U (en) * | 2017-01-19 | 2017-08-15 | 苏州工业园区思达德阀门有限公司 | A kind of buried gate valve of cast steel |
| CN206668980U (en) * | 2017-04-05 | 2017-11-24 | 宁波万诺宝通机电制造有限公司 | A kind of two-way no stall intelligent gas meter motor valve |
| CN206973033U (en) * | 2017-06-19 | 2018-02-06 | 中山铁王流体控制设备有限公司 | A kind of ball arm integrated Fluorine-lined ball valve of long-life anti-side grinding |
| CN208331426U (en) * | 2018-05-03 | 2019-01-04 | 中山铁王流体控制设备有限公司 | Axle sealing structure in a kind of shut-off valve |
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| Publication number | Publication date |
|---|---|
| CN108591598A (en) | 2018-09-28 |
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