CN204828707U - Complete manual heavy -calibre double containment butterfly valve - Google Patents
Complete manual heavy -calibre double containment butterfly valve Download PDFInfo
- Publication number
- CN204828707U CN204828707U CN201520600840.1U CN201520600840U CN204828707U CN 204828707 U CN204828707 U CN 204828707U CN 201520600840 U CN201520600840 U CN 201520600840U CN 204828707 U CN204828707 U CN 204828707U
- Authority
- CN
- China
- Prior art keywords
- butterfly valve
- guide rod
- locking nut
- guide bar
- lock nut
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a complete manual heavy -calibre double containment butterfly valve, including butterfly plate, valve body, move movable sealing ring, guide bar, a lock nut, the 2nd lock nut and sealed lid, guide bar one end pass butterfly valve upper reaches nozzle stub and with it is fixed to move movable sealing ring, the guide bar is located butterfly valve upper reaches nozzle stub and keeps away from it has the lead screw district to move movable sealing ring one side, a lock nut with the 2nd lock nut cover is located on the guide bar and lie in lead screw district, a lock nut and the 2nd lock nut pass through the rotary driving guide bar and move, the guide bar drives move the movable sealing ring motion and drive it and drop into or dial out the action, the sealing gland cover is located the guide bar periphery is installed on the nozzle stub of the butterfly valve upper reaches. The utility model discloses a complete manual heavy -calibre double containment butterfly valve has simple structure, the honest and clean advantage of low in manufacturing cost.
Description
Technical field
The utility model relates to a kind of butterfly valve, particularly a kind of complete manual heavy caliber double seals butterfly valve.
Background technique
At present, double seals butterfly valve is hydraulic drives, because hydraulic pressure in pipeline is not enough to drive hydrodynamic reciprocating sealing circle (the maintenance sealing of double seals butterfly valve), generally needs to increase power plant (comprising filter, operating valve and suction booster etc.) and help hydrodynamic reciprocating sealing circle drop into and extract.The double-sealing of this hydraulic drives is not only because need increase drive unit and considerably increase cost, and seal operation brings great potential safety hazard because the structure of himself gives maintenance:
First, the rigidity of hydrodynamic reciprocating sealing circle to ensure, and overhaul the mode of seal ring by hydraulic drives, cannot realize the synchronism of hydrodynamic reciprocating sealing ring motion and cause hydrodynamic reciprocating sealing circle in movement process, occur the phenomenon of jam;
Secondly, in hydrodynamic reciprocating sealing circle machining accuracy and movement process, the wearing and tearing of Sealing cause water cavity seal failure, at this moment occur internal leakage between water cavity and valve body chamber and water cavity and hydraulic drives device it
Between external leakage
Finally, water cavity seal failure can cause hydrodynamic reciprocating sealing circle akinesia.
Therefore, a kind of structure double seals butterfly valve simple, cheap for manufacturing cost is provided to be the technical problem that those skilled in the art need solution badly.
Model utility content
The purpose of this utility model is to provide a kind of structure double seals butterfly valve simple, cheap for manufacturing cost.
To achieve these goals, the utility model provides a kind of complete manual heavy caliber double seals butterfly valve, comprise butterfly plate, valve body, hydrodynamic reciprocating sealing circle, guide rod, first locking nut, second locking nut and sealing cover, described guide rod one end is passed butterfly valve upstream short tube and is fixed with described hydrodynamic reciprocating sealing circle, described guide rod is positioned at butterfly valve upstream short tube and has screw mandrel district away from described hydrodynamic reciprocating sealing circle side, described first locking nut and described second locking nut to be sheathed on described guide rod and to be positioned at screw mandrel district, described first locking nut and the second locking nut are moved by rotary actuation guide rod, described guide rod drives described hydrodynamic reciprocating sealing circle to move and drives it to carry out dropping into or dialing action, described sealing gland is sheathed on described guide rod periphery and is arranged on the short tube of butterfly valve upstream.
Preferably, also comprise fixed block, described fixed block to be arranged on the short tube of butterfly valve upstream and between described first locking nut and described second locking nut, described fixed block to be provided with guide support hole, and described guide rod is through described guide support hole.
In such scheme, complete manual heavy caliber double seals butterfly valve provided by the utility model, hydrodynamic reciprocating sealing circle carry out dropping into or dialing action time, it is motion under guide rod drives, thus make hydrodynamic reciprocating sealing circle movement process more accurate, first locking nut and the second locking nut forming position locking device, thus the motion of guide rod can be realized by adjustment first locking nut and the second locking nut, and then make hydrodynamic reciprocating sealing circle carry out dropping into or dialing action, sealing gland the sealing that can effectively realize between guide rod and butterfly valve upstream short tube is set; Being provided with of fixed block is beneficial to and promotes stability in guide rod movement process and accuracy further, thus makes the movement process of hydrodynamic reciprocating sealing circle more stable and accurately.
Compared with prior art, complete manual heavy caliber double seals butterfly valve provided by the utility model has the following advantages: in conjunction with the very low (possibility several years of butterfly valve repair rate, more than ten years, even inoperation maintenance decades) this feature, realize input and the pull action of butterfly valve maintenance seal ring, the nonsynchronous problem of adequate solution maintenance seal ring action, eliminate hydraulic driving system, optimize and simplify maintenance sealed member part and structure, and add maintenance seal-moving guiding and position locking device (guide rod guiding, nut check), make double sealing structure simpler, action is more reliable, manufacture cost is cheaper.
In sum, complete manual heavy caliber double seals butterfly valve provided by the utility model has that structure is simple, cheap for manufacturing cost, the advantage of reliable in action.
Accompanying drawing explanation
Fig. 1 is the maintenance sealing relieving state structural representation of a kind of embodiment of a kind of complete manual heavy caliber double seals butterfly valve that the utility model proposes;
Fig. 2 is that the maintenance sealing of a kind of embodiment of a kind of complete manual heavy caliber double seals butterfly valve that the utility model proposes drops into status architecture schematic diagram.
Embodiment
The purpose of this utility model is to provide a kind of structure double seals butterfly valve simple, cheap for manufacturing cost.
The technical solution of the utility model is understood better in order to make those skilled in the art; below in conjunction with accompanying drawing, the utility model is described in detail; the description of this part is only exemplary and explanatory, should not have any restriction to protection domain of the present utility model.
Please refer to Fig. 1, in one embodiment, the complete manual heavy caliber double seals butterfly valve of one provided by the utility model, comprise butterfly plate 1, valve body 2, hydrodynamic reciprocating sealing circle 3, guide rod 7, fixed block 9, first locking nut 5, second locking nut 6 and sealing cover 8, guide rod 7 one end is passed butterfly valve upstream short tube 4 and is fixed with hydrodynamic reciprocating sealing circle 3, guide rod 7 is positioned at butterfly valve upstream short tube 4 and has screw mandrel district away from hydrodynamic reciprocating sealing circle 3 side, first locking nut 5 and the second locking nut 6 to be sheathed on guide rod 7 and to be positioned at screw mandrel district, first locking nut 5 and the second locking nut 6 are moved by rotary actuation guide rod 7, guide rod 7 drives hydrodynamic reciprocating sealing circle 3 to move and drives it to carry out dropping into or dialing action, sealing gland is sheathed on guide rod 7 periphery and is arranged on butterfly valve upstream short tube 4, fixed block 9 to be arranged on butterfly valve upstream short tube 4 and between the first locking nut 5 and the second locking nut 6, fixed block 9 is provided with guide support hole, guide rod 7 is through guide support hole.
The complete manual heavy caliber double seals butterfly valve that the present embodiment provides, hydrodynamic reciprocating sealing circle 3 carry out dropping into or dialing action time, it is motion under guide rod 7 drives, thus make hydrodynamic reciprocating sealing circle 3 movement process more accurate, first locking nut 5 and the second locking nut 6 forming position locking device, thus the motion of guide rod 7 can be realized by adjustment first locking nut 5 and the second locking nut 6, and then make hydrodynamic reciprocating sealing circle 3 carry out dropping into or dialing action, sealing gland the sealing that can effectively realize between guide rod 7 and butterfly valve upstream short tube 4 is set; Being provided with of fixed block 9 is beneficial to and promotes stability in guide rod 7 movement process and accuracy further, thus makes the movement process of hydrodynamic reciprocating sealing circle 3 more stable and accurately.
Compared with prior art, the complete manual heavy caliber double seals butterfly valve that the present embodiment provides has the following advantages: in conjunction with the very low (possibility several years of butterfly valve repair rate, more than ten years, even inoperation maintenance decades) this feature, realize input and the pull action of butterfly valve maintenance seal ring, the nonsynchronous problem of adequate solution maintenance seal ring action, eliminate hydraulic driving system, optimize and simplify maintenance sealed member part and structure, and add maintenance seal-moving guiding and position locking device (screw rod guiding, nut check), make double sealing structure simpler, action is more reliable, manufacture cost is cheaper.
To sum up, the complete manual heavy caliber double seals butterfly valve that the present embodiment provides has that structure is simple, cheap for manufacturing cost, the advantage of reliable in action.
It should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation and another entity or control panel to separate, and not necessarily require or imply the relation or order that there is any this reality between these entities or operation, and, term " comprises ", " to comprise " or its any other variant is intended to contain comprising of nonexcludability, thus make the process comprising a series of key element, method, which key element article or equipment not only comprise, but also comprise other key elements clearly do not listed, or also comprise for this process, method, article or the intrinsic key element of equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising key element and also there is other identical element.
Apply specific case herein to set forth principle of the present utility model and mode of execution, the explanation of above embodiment just understands method of the present utility model and core concept thereof for helping.The above is only preferred implementation of the present utility model, should be understood that, due to the finiteness of literal expression, and objectively there is unlimited concrete structure, for those skilled in the art, under the prerequisite not departing from the utility model principle, some improvement, retouching or change can also be made, also above-mentioned technical characteristics can be combined by rights; These improve retouching, change or combination, or the design of model utility and technological scheme are directly applied to other occasion without improving, and all should be considered as protection domain of the present utility model.
Claims (2)
1. a complete manual heavy caliber double seals butterfly valve, it is characterized in that, comprise butterfly plate (1), valve body (2), hydrodynamic reciprocating sealing circle (3), guide rod (7), first locking nut (5), second locking nut (6) and sealing cover (8), described guide rod (7) one end is passed butterfly valve upstream short tube (4) and is fixed with described hydrodynamic reciprocating sealing circle (3), described guide rod (7) is positioned at butterfly valve upstream short tube (4) and has screw mandrel district away from described hydrodynamic reciprocating sealing circle (3) side, described first locking nut (5) and described second locking nut (6) are sheathed on described guide rod (7) and go up and be positioned at screw mandrel district, described first locking nut (5) and the second locking nut (6) are moved by rotary actuation guide rod (7), described guide rod (7) drives described hydrodynamic reciprocating sealing circle (3) to move and drives it to carry out dropping into or dialing action, described sealing gland is sheathed on described guide rod (7) periphery and is arranged on butterfly valve upstream short tube (4).
2. complete manual heavy caliber double seals butterfly valve according to claim 1, it is characterized in that, also comprise fixed block (9), described fixed block (9) is arranged on butterfly valve upstream short tube (4) and goes up and be positioned between described first locking nut (5) and described second locking nut (6), (9) are provided with guide support hole to described fixed block, and described guide rod (7) is through described guide support hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520600840.1U CN204828707U (en) | 2015-08-05 | 2015-08-05 | Complete manual heavy -calibre double containment butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520600840.1U CN204828707U (en) | 2015-08-05 | 2015-08-05 | Complete manual heavy -calibre double containment butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204828707U true CN204828707U (en) | 2015-12-02 |
Family
ID=54686310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520600840.1U Expired - Fee Related CN204828707U (en) | 2015-08-05 | 2015-08-05 | Complete manual heavy -calibre double containment butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204828707U (en) |
-
2015
- 2015-08-05 CN CN201520600840.1U patent/CN204828707U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20151202 Termination date: 20180805 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |