CN205578741U - Be suitable for programme -controlled stop valve - Google Patents
Be suitable for programme -controlled stop valve Download PDFInfo
- Publication number
- CN205578741U CN205578741U CN201620174660.6U CN201620174660U CN205578741U CN 205578741 U CN205578741 U CN 205578741U CN 201620174660 U CN201620174660 U CN 201620174660U CN 205578741 U CN205578741 U CN 205578741U
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- valve
- hole
- section
- flap
- rod
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- Expired - Fee Related
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Abstract
The utility model discloses a be suitable for programme -controlled stop valve, including valve body and drive arrangement, the upper and lower both ends of valve gap respectively with drive arrangement with valve body fixed connection, the through -hole of valve gap is big echelonment for a short time under the internal diameter, is divided into a plurality of equant holes section, and lower hole section be valve rod hole section, goes up the hole section for hookup lumen pore section, establishes the sealed sleeve pipe of sealing washer inside and outside having in, between the two for sealed letter hole section, drive arrangement is vertical layout's pneumatic cylinder, the push rod lower extreme of pneumatic cylinder extends to in the hookup chamber section of valve gap through -hole and through the shaft coupling with the upper end of valve rod is connected, the pneumatic cylinder is equipped with the control dress that can gather the push rod and remove signal and/or position sigual's signal pickup assembly and be used for controlling its liquid way, signal pickup assembly's signal connection and the controlling devic. The utility model discloses be suitable for the modular design, the valve clack operation is stable, and is sealed effectual, little to the resistance of valve rod, and can carry on programme -controlledly.
Description
Technical field
This utility model relates to a kind of being suitable to program control stop valve.
Background technology
nullExisting stop valve includes valve body and the valve gap being fixedly mounted on valve body，Valve gap covers the installation opening on valve body，Valve housing is collectively formed with valve body，Valve pocket in valve housing is divided into snout cavity、Lumen and outlet plenum，The port of snout cavity constitutes valve inlet，The port of outlet plenum constitutes valve export，The valve seat of annular it is provided with between lumen and outlet plenum，Described valve seat is horizontally disposed，The through hole connection lumen of valve seat central authorities and outlet plenum，Middle intracavity is additionally provided with flap，Flap and valve seat constitute the sealing pair of valve，It is respectively equipped with the most corresponding sealing surface，When flap contacts with seat pressure under the drive of valve actuator，The through hole of valve seat central authorities is blocked by flap，Valve is closed，When flap departs from valve seat under the drive of valve actuator，Open-minded through the medium channel of valve seat center through hole，Valve is in opening，Valve actuator connects flap by valve rod，Valve rod is through the valve rod hole on valve gap，One end is positioned at middle intracavity，Connect flap，The other end is positioned at outside valve housing，Connect driving means，Valve rod is provided with stuffing-box through the position of valve gap，It is provided with airtight and watertight padding in described stuffing-box，For the sealing realizing between valve rod and valve seat while allowing valve rod to move up and down，Avoid the dielectric leakage in valve housing out，Valve actuator generally can use hydraulic cylinder.Column defects in the presence of this stop valve: one is valve rod and fluid cylinder push rod (piston rod) disjunctor, valve and valve actuator is connected together, is unfavorable for the modular design of total structure, improves accuracy of manufacture requirement, add assembly difficulty；Two is that flap positions instability at work, easily causes valve and vibrates at work；Three is that the stuffing box structure sealed between valve rod and valve gap easily causes valve rod resistance greatly, and easily reveals；Four is that between valve body and valve gap, pad uses open architecture, easily causes pad and runs off, and extruding force reduces, seal failure；Five is not have remote transfer signal device, is difficult to realize remotely controlling.
Utility model content
In order to overcome the drawbacks described above of prior art, this utility model provides and a kind of is suitable to program control stop valve, and this stop valve is suitable to valve body and the modular design of driving means total structure, flap is stable, good sealing effect, little to the resistance of valve rod, and can carry out program control.
nullThe technical scheme that this utility model is used: a kind of be suitable to program control stop valve，Including valve body and driving means，Described valve body includes valve body、Valve gap、Flap and valve rod，Described valve gap covers at the valve body installation opening of described body top and is connected with described valve seal，Valve housing is collectively formed with described valve body，Valve pocket in described valve housing is followed successively by snout cavity、Lumen and outlet plenum，It is provided with valve seat between described lumen and outlet plenum，Described valve seat is ringwise，Its center through hole connects described lumen and outlet plenum，Described flap is positioned at described middle intracavity，Described valve gap is cylindrical，The two ends up and down of described valve gap are fixing with described driving means and described valve body respectively to be connected，Described valve gap is provided with the valve gap through hole along axis，Described valve gap through hole is little big stepped under internal diameter，It is divided into some isometrical hole sections，The lower opening section of described valve gap through hole is valve rod hole hole section，Upper hole section is for coupling lumen pore section，Described valve rod passes described valve rod hole hole section，Lower end extends to described lumen and connects described flap，Upper end extends to described connection lumen pore section，Described driving means is the hydraulic cylinder being vertically arranged，The push rod of described hydraulic cylinder is through the bottom of hydraulic cylinder body，Its lower end extend to described valve gap through hole couple chamber section in and pass through shaft coupling and be connected with the upper end of described valve rod，Described shaft coupling is positioned at described connection lumen pore section，Described shaft coupling、Distance is all left between the side of valve rod and push rod with the described hole wall coupling lumen pore section，Described hydraulic cylinder is provided with and can gather the signal pickup assembly of push rod movable signal and/or position signalling and for controlling the control device of its fluid path，The signal of described signal pickup assembly accesses described control device by wiredly and/or wirelessly communication mode.
The beneficial effects of the utility model: owing to driving means and valve body are separable self-contained unit, dismountable connected mode all can be used to connect between both each relevant portions, easily hydraulic cylinder and valve body can be fitted together, easily the hydraulic cylinder fitted together and valve body can also be split, thus achieve the modular design of total structure, facilitate production, install and safeguard.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
Detailed description of the invention
nullSee Fig. 1，This utility model provides and a kind of is suitable to program control stop valve，It includes valve body 100 and driving means 300，Described valve body includes valve body 101、Valve gap 102、Flap 122 and valve rod 123，Described valve gap covers at the valve body installation opening of described body top and is connected with described valve seal，Thus close the valve body installation opening of described body top，Valve housing is collectively formed with described valve body，Described valve body installation opening is valve pocket opening on valve body，Arrange typically to the assembling of valve inner part，After corresponding inner part is assembled，Seal with valve gap，Valve pocket in described valve housing is followed successively by snout cavity 111、Lumen 112 and outlet plenum 113，The influent side port of described intake antrum constitutes described valve inlet，The water outlet side port of described water chamber constitutes described valve export，Described snout cavity、Lumen and outlet plenum are sequentially communicated，Form the medium channel from valve inlet to valve export，The installation opening of described body top generally should be located at the upper end of described lumen，To adapt to flap and valve seat etc. in the installation of lumen (or passing through lumen) and setting，Valve seat 121 it is provided with between described lumen and outlet plenum，Described valve seat generally should be horizontally disposed with，To be adapted to the yo-yo fashion of flap，Described valve seat is ringwise，Its center through hole connects described lumen and outlet plenum，Described flap is positioned at described middle intracavity，Described valve gap is cylindrical，Should generally be vertical，So that the part supporting with valve rod assembling is arranged in the vertical cavity of valve gap，It is suitable for the mounting means that valve rod extends up and down，Realize the positive sealing between valve rod and valve gap，The two ends up and down of described valve gap are fixing with described driving means and described valve body respectively to be connected，It is achieved in the installation on valve body of the described driving means and fixes，Described valve gap is provided with the valve gap through hole along axis，This through hole constitutes the vertical cavity of described valve gap，Described valve gap through hole is little big stepped under internal diameter，It is divided into some isometrical hole sections，The lower opening section of described valve gap through hole is valve rod hole hole section，Upper hole section is for coupling lumen pore section，Described valve rod passes described valve rod hole hole section，Lower end extends to described lumen and connects described flap，Upper end extends to described connection lumen pore section，Described driving means is the hydraulic cylinder being vertically arranged，The push rod (piston rod or the axially extending bar being connected with piston rod) 311 of described hydraulic cylinder is through the bottom of hydraulic cylinder body，Its lower end extend to described valve gap through hole couple chamber section in and pass through shaft coupling and be connected with the upper end of described valve rod，Described shaft coupling is positioned at described connection lumen pore section，Move up and down along with the push rod of driving means due to described shaft coupling，Whole strokes of described shaft coupling typically each should be positioned at the upper hole section of described valve gap through hole，Described shaft coupling、Distance is all left between the side of valve rod and push rod with the described hole wall coupling lumen pore section，With the assembling of each part in ensureing the motility of movement and being easy to connection lumen pore section，Generally use above-mentioned connected mode，Described valve body and driving means can be disposed as detachable self-contained unit，It is easy to manufacture and the overall package of each device，Also allow for dismounting and safeguard.
Described shaft coupling preferably employs the shaft coupling allowing to there is horizontal direction skew.nullSuch as，Described shaft coupling includes the coupling bar 201 of coaxial with described valve rod (axis is located along the same line) and coaxial with described push rod couples cup 204，The lower end of described coupling bar is fixing with described valve rod to be connected，The upper end of described connection cup is fixing with described push rod to be connected，Described connection cup be provided with opening towards cup chamber，The opening part in described cup chamber is provided with the plug 203 with vertical through holes，Described coupling bar is through the vertical through holes of described plug，The connection part 202 of its upper end be positioned at described connection cup cup intracavity and use can not via described plug vertical through holes deviate from structure (such as，When the cross section of the connection part of described coupling bar and the vertical through holes of described plug is the most rounded，The connection part of described coupling bar maximum gauge in the horizontal direction is more than the diameter of the vertical through holes of described plug)，The connection part of described coupling bar leaves gap in the horizontal direction with the described inwall coupling cup，Thus while allowing described coupling bar to have not coaxial or horizontal-shift to a certain extent relative to described connection cup，By described plug, the connection part of described coupling bar is constrained in the cup intracavity of described connection cup，To carry out the power on vertical (axially) and the transmission of motion.The described coupling bar removable amplitude on vertical or the described plug compression degree to the connection part of described coupling bar can be regulated by regulation described plug vertical position on described connection cup.Owing to this shaft coupling allows there is certain relative skew between push rod and the valve rod connected in the horizontal direction, hence it is evident that reduce the requirement to associated part machining accuracy and assembly precision, advantageously reduce cost, it is ensured that runnability.
Fixing connected mode between described coupling bar with described valve rod and the described fixing connected mode coupled between cup and described push rod can use the prior art of any suitable.Such as, the vertical connecting hole of described valve rod upper-center is inserted in the lower end of described coupling bar, preferably with vertical connecting hole interference fits or the interference fit of described valve rod upper-center, and can be fixed by the horizontal pin 206 through described valve rod and described coupling bar, above-mentioned inserting mode can also be used between described connection cup upper end and described push rod, or, preferably, described connection cup uses integrative-structure with described push rod, thus, described connection cup can be considered and is provided with a vertical blind hole in this integrative-structure bottom center, this blind hole constitutes the cup chamber of described connection cup, its hole wall constitutes the wall of cup of described connection cup.The bottom of this integrative-structure is the most diametrically more than the cylindricality of the main body portion diameter of this integrative-structure, to ensure to couple wall thickness and the intensity of cup, described plug is screwed in described connection cup from the lower end of described connection cup, described plug can couple, with described, the external screw thread that cup spins, correspondingly, with corresponding female thread on the inwall of described connection cup, use this mode that spins, it is easy to determine and adjust plug in vertical (axially) position coupled on cup, in order to regulate the connection part of the described coupling bar tightness on vertically.
Alignment pin or location screw can be provided with between described plug and connection cup.
Unthreaded hole, preferably blind hole can be provided with on the sidewall of described plug, in order to insert screwdriver etc. when installation and removal, limit plug and rotate.
Unthreaded hole 205, preferably blind hole can also be provided with on the sidewall of described push rod, in order to insert screwdriver etc. when installation and removal, limit push rod and rotate.
Preferably, the connection part of described coupling bar is rotational symmetric smooth spirogyrate.
It is further preferred that the connection part of described coupling bar (more than the segment-shaped of hemisphere) spherical in shape or elliposoidal (lacking more than the ellipsoid of hemisphere).
The inlet side of described valve body and the end of outlet side all can be provided with flange arrangement 106 or other attachment structures, to facilitate the installation on pipeline.
Preferably, the inwall of described lumen bottom is provided with some vertical guiding ribs 105, described guiding rib distributed areas in flap circumference are preferably greater than semicircle, leaving, between the medial surface (inner surface radially) of each described guiding rib and described flap due lateral surface travel path (flap travel path when occurring without the situations such as skew and vibration), the minim gap playing the guiding role, gear is around described flap.Owing to the bottom of the most described lumen is positioned on the extended line of described snout cavity, can be considered and the intersectional region of described snout cavity, the horizontal direction size in this region is typically greater than the external diameter of described flap, flap periphery when this regional movement is unobstructed, the most only rigidity with valve rod is not sufficient to ensure that flap does not offsets normal trace because of factors such as the impact of medium stream and disturbances or swings (vibration), setting by above-mentioned guiding rib, flap can be effectively prevented from horizontal direction skew and vibration occur in moving process, advantageously ensure that the sealing effectiveness of valve and extend service life.Alleged by the minim gap that play the guiding role refer to that the size in this gap be enough to allow the smooth and easy movement of flap and be enough to limit flap unallowed horizontal-shift or swing occur, be achieved in guiding and the position-limiting action that flap is moved up and down.
The medial surface of described guiding rib is preferably the smooth face of cylinder, the axis of this cylinder shape is preferably overlapping with the central axis of flap, and can be machined into through the installation opening of body top, the installation opening of described body top is preferably placed at the surface of described flap and is more than the cross-sectional area of described flap.
The installation opening hole wall of described body top, the inwall on described lumen top and the inner surface of described guiding rib may be located on the same face of cylinder, the diameter on this face of cylinder is slightly larger than the external diameter of described flap, these faces can be formed through identical machine-tooled method in valve body moulding, above-mentioned each can be processed in same technical process, the described installation opening being consequently formed is described lumen and extends in the opening of body top, all leave, between described lumen top and described guiding rib and described flap, the minim gap playing the guiding role, thus, not only convenient processing and assembling, but also it is smooth and easy to ensure that flap moves, and avoid the level of flap to skew and vibration.
The quantity of described guiding rib is preferably equal to 3 or more than 3, generally each guiding rib can be made to be uniformly distributed in the circumferential or substantially uniform distribution according to the structure within lumen, or use other distribution modes allowed, it is ensured that guide effect.
nullPreferably，Described valve gap through hole is additionally provided with sealed letter hole section，Described sealed letter hole section is positioned at described valve rod hole hole section and couples between lumen pore section，Sealing sleeve pipe 107 it is provided with in the section of described sealed letter hole，Described valve rod through described sealing sleeve pipe pore and and the pore hole wall (sidewall of pore) of described sealing sleeve pipe leave fit-up gap，The pore hole wall of described sealing sleeve pipe is provided with the inner seal ring groove of one or more level，The lateral surface of described sealing sleeve pipe is provided with the external seal annular groove of one or more level，Valve stem packing ring and valve bonnet seal circle 108 it is embedded with respectively on described inner seal ring groove and external seal annular groove，Thus，The inner side of described valve stem packing ring mutually extrudes formation and seals with described valve rod，The outside of described valve bonnet seal circle mutually extrudes formation sealing with the hole wall of described sealed letter hole section，For packing box seal，The good sealing effect of this sealing means，Reliability is high，Life-span is long，And the resistance that moves valve rod is little.
Seal joint 109 can be set in the upper end of described sealing sleeve pipe, by screw, seal joint is fastened on the stage end face of described sealed letter hole section and connection lumen pore section, be achieved in sealing sleeve pipe is fixed.
Described valve stem packing ring and valve bonnet seal circle can be all O.
The hole wall of described valve rod hole is provided with the valve rod hole closure gasket groove of level, and described valve rod hole closure gasket groove is embedded with valve rod hole sealing ring 103, and thus, the inner side of described valve rod hole sealing ring is formed with the extruding of described valve rod and seals, to improve valve stem seal performance further.
Described valve rod hole sealing ring can be O.
Periphery bottom described flap can be provided with annular breach, usually right-angle notch (edge of cross section is rectangular), the flap sealing member 125 of annular is installed on described annular breach, sealing member pressing plate 126 it is installed with bottom described flap, generally by screw 127, described sealing member pressing plate can be fastened on the bottom surface of described flap, to realize the fixed installation of sealing member pressing plate, the periphery of described sealing member pressing plate is pressed on the radially inner side region of described flap sealing member, the most not only achieve the fixing of flap sealing member, but also be easily installed, dismounting, change and safeguard.
The axial length of described connection lumen pore section can be generally greater than described valve rod hole hole section and the length sum of sealed letter hole section.
The internal diameter of described sealed letter hole section generally should be greater than the internal diameter of described valve rod hole hole section, and the internal diameter of described connection lumen pore section is preferably greater than the internal diameter of described sealed letter hole section.
The two ends up and down of described valve gap are preferably provided with connecting flange structure, described valve body upper end and described hydraulic cylinder lower end and are provided with corresponding flange arrangement, thus can realize the fixing connection between valve body and valve gap and between valve gap and hydraulic cylinder by flange connection.
One or more vertical strip hole (window) 104 can be provided with on the hole wall of described connection lumen pore section, vertical strip hole can also be not provided with, when arranging multiple strip hole, the quantity of described strip hole is preferably 2,3 or 4, can by this/this some holes observes inner case operate the inner parts such as shaft coupling, such as insert screwdriver etc. by strip hole, carry out assembly or disassembly, when the gross area of the strip hole of described setting is sufficiently large, it is also possible to the frame structure that the valve gap at lumen pore section is considered as being made up of will be coupled multiple arc surfaced columns.
The push rod side chamber of described hydraulic cylinder and without push rod side chamber all to be provided with medium pipeline interface, described medium pipeline interface all can be provided with flange 321, in order to is connected with Outer Tube by corresponding Outer Tube flange 322.
The cylinder body of described hydraulic cylinder can include cylindrical body 301 and be separately mounted to the end cap up and down 303,302 at the upper and lower two ends of described cylindrical body, the one or both ends of described cylindrical body are also provided with the suitable configurations being connected with respective end end cap, when when two ends are provided with flange up and down of described hydraulic cylinder, the flange at described upper and lower two ends uses the flange arrangement on described upper and lower side lid.
Described valve body and hydraulic cylinder can arrange sealing according to prior art in the place needed, such as, between piston 312 and the cylindrical body of cylinder body of described hydraulic cylinder, between described push rod and the bottom end cover (bottom of hydraulic cylinder body) of described hydraulic cylinder and between the upper end cover (top of hydraulic cylinder body) of described displacement thief rod (if any) and described hydraulic cylinder, all according to prior art, sealing ring can be set and for being embedded in the annular groove of corresponding sealing ring.
Described hydraulic cylinder is provided with the signal pickup assembly 401 that can gather push rod movable signal and/or position signalling, described signal pickup assembly can be provided with or without communication system according to actual needs, so that the signal collected is sent, described signal pickup assembly can use the prior art of any suitable, can directly gather motion and/or the position signalling of push rod, piston or the motion of flap and/or position signalling can also be gathered, or gather motion and/or the position signalling fixing sampling member that is that be connected or that be in transmission connection with above-mentioned any one or more parts.
Described signal pickup assembly is preferably provided with displacement thief rod 411, described displacement thief rod is through the top of described hydraulic cylinder body, the piston connecting described hydraulic cylinder is fixed in its lower end, thus, displacement thief rod is and movement with amplitude Tong Bu with push rod under the drive of piston, position signalling and/or the movable signal of push rod are passed to signal pickup assembly, described signal pickup assembly can utilize prior art or the other technologies of any suitable, by the position of displacement thief rod/movable signal converted electrical number, in order to follow-up signal processing.
Described hydraulic cylinder is also provided with the control device for controlling its fluid path, to control break-make and the rate-of flow of fluid path, and then control push rod action, control valve door state, described control device can use prior art and other appropriate technologys of any suitable, such as, in hydraulic cylinder push rod side chamber and the medium pipeline connected without push rod side chamber, corresponding motor-operated control valve/regulation valve is set, to control the duty of the signal control described motor-operated control valve/regulation valve of device, can be according to push rod action request, control different chamber be in feed liquor and go out liquid status, and control liquid inlet volume.
Described control device can be the dedicated control device of valve, it can also be the control device of the media feed system using this valve, can also is that the control device of the production system that media feed system relates to, can be local to control device, it is also possible to be tele-control system.
The signal of described signal pickup assembly can access described control device by wiredly and/or wirelessly communication mode, carries out the control of hydraulic cylinder in this, as feedback control signal.
Disclosed in this utility model each preferably with optional technological means, unless otherwise indicated and preferred or optional technological means is outside the limiting further of another technological means, all can form some different technical schemes in any combination.
Claims (10)
- null1. one kind is suitable to program control stop valve，It is characterized in that including valve body and driving means，Described valve body includes valve body、Valve gap、Flap and valve rod，Described valve gap covers at the valve body installation opening of described body top and is connected with described valve seal，Valve housing is collectively formed with described valve body，Valve pocket in described valve housing is followed successively by snout cavity、Lumen and outlet plenum，It is provided with valve seat between described lumen and outlet plenum，Described valve seat is ringwise，Its center through hole connects described lumen and outlet plenum，Described flap is positioned at described middle intracavity，Described valve gap is cylindrical，The two ends up and down of described valve gap are fixing with described driving means and described valve body respectively to be connected，Described valve gap is provided with the valve gap through hole along axis，Described valve gap through hole is little big stepped under internal diameter，It is divided into some isometrical hole sections，The lower opening section of described valve gap through hole is valve rod hole hole section，Upper hole section is for coupling lumen pore section，Described valve rod passes described valve rod hole hole section，Lower end extends to described lumen and connects described flap，Upper end extends to described connection lumen pore section，Described driving means is the hydraulic cylinder being vertically arranged，The push rod of described hydraulic cylinder is through the bottom of hydraulic cylinder body，Its lower end extend to described valve gap through hole couple chamber section in and pass through shaft coupling and be connected with the upper end of described valve rod，Described shaft coupling is positioned at described connection lumen pore section，Described shaft coupling、Distance is all left between the side of valve rod and push rod with the described hole wall coupling lumen pore section，Described hydraulic cylinder is provided with and can gather the signal pickup assembly of push rod movable signal and/or position signalling and for controlling the control device of its fluid path，The signal of described signal pickup assembly accesses described control device by wiredly and/or wirelessly communication mode.
- Be suitable to program control stop valve the most as claimed in claim 1, it is characterized in that the inwall of described lumen bottom is provided with some vertical guiding ribs, described guiding rib distributed areas in flap circumference are more than semicircle, leaving the minim gap playing the guiding role between medial surface and the described flap due lateral surface travel path of each described guiding rib, gear is around described flap.
- Being suitable to program control stop valve the most as claimed in claim 2, it is characterised in that the medial surface of described guiding rib is the smooth face of cylinder, the installation opening of described body top is positioned at the surface of described flap and is more than the cross-sectional area of described flap.
- Be suitable to program control stop valve the most as claimed in claim 3, it is characterised in that the quantity of described guiding rib is equal to 3 or more than 3.
- 5. such as claim 1, 2, program control stop valve is suitable to described in 3 or 4, it is characterized in that described valve gap through hole is additionally provided with sealed letter hole section, described sealed letter hole section is positioned at described valve rod hole hole section and couples between lumen pore section, it is provided with sealing sleeve pipe in the section of described sealed letter hole, described valve rod through described sealing sleeve pipe pore and and the pore hole wall of described sealing sleeve pipe leave fit-up gap, the pore hole wall of described sealing sleeve pipe is provided with the inner seal ring groove of one or more level, the lateral surface of described sealing sleeve pipe is provided with the external seal annular groove of one or more level, valve stem packing ring and valve bonnet seal circle it is embedded with respectively on described inner seal ring groove and external seal annular groove.
- Be suitable to program control stop valve the most as claimed in claim 5, it is characterized in that the hole wall of described valve rod hole is provided with the valve rod hole closure gasket groove of level, being embedded with valve rod hole sealing ring on described valve rod hole closure gasket groove, described valve stem packing ring, valve bonnet seal circle and valve rod hole sealing ring are O.
- 7. as described in claim 1,2,3 or 4, be suitable to program control stop valve, it is characterised in that described shaft coupling uses the shaft coupling allowing to there is horizontal direction skew.
- 8. as described in claim 1,2,3 or 4, be suitable to program control stop valve, it is characterised in that being provided with or without vertical strip hole on the hole wall of described connection lumen pore section, when being provided with described vertical strip hole, the quantity of described vertical strip hole is one or more.
- 9. as described in claim 1,2,3 or 4, be suitable to program control stop valve, it is characterized in that the periphery bottom described flap is provided with annular breach, the flap sealing member of annular is installed on described annular breach, being installed with sealing member pressing plate bottom described flap, the periphery of described sealing member pressing plate is pressed on the radially inner side region of described flap sealing member.
- 10. being suitable to program control stop valve as described in claim 1,2,3 or 4, it is characterised in that described signal pickup assembly is provided with displacement thief rod, described displacement thief rod is through the top of described hydraulic cylinder body, and the piston connecting described hydraulic cylinder is fixed in its lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620174660.6U CN205578741U (en) | 2016-03-08 | 2016-03-08 | Be suitable for programme -controlled stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620174660.6U CN205578741U (en) | 2016-03-08 | 2016-03-08 | Be suitable for programme -controlled stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205578741U true CN205578741U (en) | 2016-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620174660.6U Expired - Fee Related CN205578741U (en) | 2016-03-08 | 2016-03-08 | Be suitable for programme -controlled stop valve |
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| Country | Link |
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| CN (1) | CN205578741U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397559A (en) * | 2018-01-16 | 2018-08-14 | 西安航天动力试验技术研究所 | High sealing performance shut-off valve |
| CN111677895A (en) * | 2020-06-18 | 2020-09-18 | 南通国电阀门科技有限公司 | Multi-bypass pressure relief type gate valve of high-pressure forge welding structure for nuclear power |
-
2016
- 2016-03-08 CN CN201620174660.6U patent/CN205578741U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397559A (en) * | 2018-01-16 | 2018-08-14 | 西安航天动力试验技术研究所 | High sealing performance shut-off valve |
| CN111677895A (en) * | 2020-06-18 | 2020-09-18 | 南通国电阀门科技有限公司 | Multi-bypass pressure relief type gate valve of high-pressure forge welding structure for nuclear power |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160914 Termination date: 20170308 |