CN202001624U - Disassembly-free online maintaining type butterfly valve - Google Patents
Disassembly-free online maintaining type butterfly valve Download PDFInfo
- Publication number
- CN202001624U CN202001624U CN2011200789777U CN201120078977U CN202001624U CN 202001624 U CN202001624 U CN 202001624U CN 2011200789777 U CN2011200789777 U CN 2011200789777U CN 201120078977 U CN201120078977 U CN 201120078977U CN 202001624 U CN202001624 U CN 202001624U
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- China
- Prior art keywords
- valve
- described valve
- valve rod
- butterfly
- valve body
- 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 - Lifetime
Links
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 238000012423 maintenance Methods 0.000 claims description 18
- 239000003566 sealing material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Details Of Valves (AREA)
Abstract
The utility model relates to a disassembly-free online maintaining type butterfly valve comprising a valve body, a butterfly plate, a valve rod and a valve cover. The valve cover is fixedly installed on the valve body by a bolt, an upper opening of a middle chamber of the valve body is sealed, the lower end of the valve rod is connected with the valve body in a rotating manner, the upper part of the valve rod penetrates through a valve rod hole in the valve cover, rotates together with the valve cover and is matched with the valve cover in a sealing manner, the valve rod and the butterfly plate can be taken from the upper opening of the middle chamber due to the proper shape and the size of the upper opening, and the butterfly plate is positioned in the middle chamber and fixedly installed on the valve rod. In the butterfly valve, the structure is reasonable, the process is simple and good, the assembly is easy; the butterfly valve can be repaired or maintained without being disassembled from a pipeline, so that the repairing or maintaining difficulty and cost can be lowered effectively; and the valve can be used continuously by only changing a sealing piece, so that the service life of the valve is prolonged effectively.
Description
Technical field
The utility model relates to a kind of butterfly valve, and is particularly a kind of when Sealing or sealing surface break down, but do not need with butterfly valve from pipeline disassemble can keep in repair exempt to dismantle online maintenance type butterfly valve.
Background technique
Tradition butterfly valve pivot pin commonly used is connected valve rod with butterfly plate, be fixed on seal ring on the butterfly plate and on valve body direct built-up welding stainless steel material process sealing surface.Use after a period of time, can be owing to the sealing surface wear generation phenomenon of leakage, need this moment to revise sealing surface or change Sealing, cumbersome but the dismounting of butterfly valve is keeped in repair: the one, disassemble valve from pipeline, could change Sealing; The 2nd, butterfly plate need be taken off just from valve shaft and can be carried out the maintenance of sealing surface, difficulty more seems when repairing or replacing Sealing especially at the scene.
The model utility content
For overcoming the above-mentioned defective of prior art, but the utility model provides a kind of online maintenance type butterfly valve of exempting to dismantle, this butterfly valve structure is reasonable, technology simple, assembling easily, good manufacturability, do not need it is removed from pipeline and can repair or replace Sealing.
Main technical schemes of the present utility model:
But a kind ofly exempt to dismantle online maintenance type butterfly valve, comprise valve body, butterfly plate, valve rod and valve gap, described valve gap is installed on the described valve body by bolt, seal the upper shed of described valve body lumen, described valve rod lower end is rotatably connected with described valve body, the valve rod hole that is provided with on the described valve gap is passed on top, with the rotation of described valve gap and be sealed and matched, the shape of the upper shed of described lumen and size allow the valve rod that links together and butterfly plate from wherein taking out, described butterfly plate is positioned at described lumen, and is fixedly mounted on the described valve rod.
Described valve gap can be provided with the valve stem casing of downward extension, and the mesopore of described valve stem casing constitutes described valve rod hole.
Can be provided with seal ring and the stuffing box that is used to seal between described valve stem casing and the described valve rod, be filled with sealing material in the described stuffing box.
The bottom of described valve body can be provided with the lower through-hole of the described valve rod lower end that is used to be rotatably connected, and can be with axle sleeve in the described lower through-hole, and the lower end of described valve rod can be inserted in the described axle sleeve and with described axle sleeve rotation and be cooperated.
The bottom of described valve body can be provided with bottom, and described bottom is positioned at the below of described axle sleeve, can be bolted to connection on the main body of described valve body, and close the under shed of described lumen
The medial axis of the described valve rod in upper edge, bottom surface of described valve rod can be provided with cylindrical groove, preferably is provided with the rotation back shaft that matches with the position and the shape of described cylindrical groove on the inwall of described bottom.
The upper shed shape of described valve body lumen can be prismatic or ellipse.
Can be provided with the seal ring that constitutes sealing pair with the valve seat of described valve body on the sealing surface of described butterfly plate.
The top of described valve rod can be provided with handle, and described handle preferably removably connects with described valve rod.
The utlity model has following beneficial effect:
1, the design of the shape of the upper shed of valve body lumen of the present utility model and size, make when opening described valve gap, described butterfly plate and valve rod can be taken out from the lumen of described valve body together, keep in repair or safeguard, the difficulty and the cost that greatly reduce maintenance or safeguard;
2, described valve stem casing and and described valve rod between seal ring and the design of stuffing box, in the positioning action that plays described valve rod, can also realize effectively the sealing, prevent the generation of the described valve rod hole phenomenon of leakage;
3, the design of the rotation back shaft on the cylindrical hole of described valve rod bottom surface and the described bottom that matches with it, realize accurate location further to described valve rod, make it can not depart from the fixed position in the course of the work because of the active force of medium, influence the sealing of described butterfly plate, the setting of described axle sleeve has guaranteed the sealing between described bottom and the bottom seat;
The utility model is rational in infrastructure, technology is simple, assembling is easy, good manufacturability, does not need it is removed from pipeline and can keep in repair or safeguard it.
Description of drawings
Fig. 1 is a plan view of the present utility model;
Fig. 2 is a left view of the present utility model.
Embodiment
Referring to Fig. 1 and 2, but the utility model provides a kind of online maintenance type butterfly valve of exempting to dismantle, comprise valve body 1, butterfly plate 2, valve rod 3 and valve gap 4, described valve gap is installed on the described valve body by bolt, seal the upper shed of described valve body lumen, described valve rod lower end is rotatably connected with described valve body, the valve rod hole that is provided with on the described valve gap is passed on top, with the rotation of described valve gap and be sealed and matched, the shape of the upper shed of described lumen and size allow the valve rod that links together and butterfly plate from wherein taking out, the upper shed shape of described valve body lumen can be prismatic or ellipse, and described butterfly plate is positioned at described lumen, and is fixedly mounted on the described valve rod.The design of the shape of the upper shed of described lumen and size, make when opening described valve gap, described butterfly plate and valve rod can be taken out from the lumen of described valve body together, do not need earlier valve is disassembled and can keep in repair and safeguard the difficulty and the cost that have reduced maintenance or safeguarded it from pipeline.
Described valve gap is provided with the valve stem casing 6 of downward extension, and the mesopore of described valve stem casing constitutes described valve rod hole.Can be provided with seal ring and the stuffing box that is used to seal between described valve stem casing and the described valve rod, be filled with sealing material in the described stuffing box, described valve stem casing can guarantee that described in the course of the work valve rod does not produce the skew of rocking with the position, described seal ring and stuffing box have been realized the sealing between described valve rod and the valve stem casing effectively, prevent the generation of the described valve rod hole phenomenon of leakage.
The bottom of described valve body can be provided with the lower through-hole of the described valve rod lower end that is used to be rotatably connected, be convenient to cooperate described valve rod hole and valve stem casing that described valve rod is located, can be with axle sleeve 7 in the described lower through-hole, the lower end of described valve rod can be inserted in the described axle sleeve and with described axle sleeve rotation and be cooperated, reduce the wearing and tearing between the two when realizing the sealing between described valve rod and the lower through-hole, prevent the generation of the described through hole phenomenon of leakage.
The bottom of described valve body is provided with bottom 5, and described bottom is positioned at the below of described axle sleeve, is bolted to connection on the main body of described valve body, and closes the under shed of described lumen.
The medial axis of the described valve rod in upper edge, bottom surface of described valve rod can be provided with cylindrical groove, preferably is provided with the rotation back shaft 8 that matches with the position and the shape of described cylindrical groove on the inwall of described bottom.Adopt this kind design can realize accurate location further to described valve rod, make it can not depart from the fixed position in the course of the work because of the active force of medium, influence the sealing of described base plate, simultaneously also provide the rotation centre of support for described valve rod, be convenient to it and drive the butterfly plate rotation that connects thereon, realize the opening and closing of valve.
The top of described valve rod can be provided with handle, and described handle preferably removably connects with described valve rod, is convenient to control described butterfly plate by valve rod and rotates the opening and closing that realize valve.
Described butterfly valve can be hard seal butterfly valve or soft sealing butterfly valve, be preferably soft sealing butterfly valve, the sealing surface of described butterfly plate is provided with the seal ring that constitutes sealing pair with the valve seat of described valve body, the valve seat of described valve body can adopt technique for overlaying to make, described butterfly plate preferably is fixed on the described valve rod by pivot pin, is convenient to dismounting.
The control mode of described butterfly valve can also can connect control corresponding system or device realization control automatically for manual control.
The utility model is rational in infrastructure, technology is simple, assembling is easy, good manufacturability, do not need it is removed from pipeline and can keep in repair or safeguard it, the difficulty and the cost that have reduced maintenance effectively or safeguarded, only need to change Sealing and can make valve continue to use, prolonged the working life of valve effectively.
Claims (9)
1. but exempt to dismantle online maintenance type butterfly valve for one kind, comprise valve body, butterfly plate, valve rod and valve gap, it is characterized in that described valve gap is installed on the described valve body by bolt, seal the upper shed of described valve body lumen, described valve rod lower end is rotatably connected with described valve body, the valve rod hole that is provided with on the described valve gap is passed on top, with the rotation of described valve gap and be sealed and matched, the shape of the upper shed of described lumen and size allow the valve rod that links together and butterfly plate from wherein taking out, described butterfly plate is positioned at described lumen, and is fixedly mounted on the described valve rod.
2. but as claimed in claim 1ly exempt to dismantle online maintenance type butterfly valve, it is characterized in that described valve gap is provided with the valve stem casing of downward extension, the mesopore of described valve stem casing constitutes described valve rod hole.
3. but as claimed in claim 2ly exempt to dismantle online maintenance type butterfly valve, it is characterized in that being provided with seal ring and the stuffing box that is used to seal between described valve stem casing and the described valve rod, be filled with sealing material in the described stuffing box.
4. but as claimed in claim 3ly exempt to dismantle online maintenance type butterfly valve, the bottom that it is characterized in that described valve body is provided with the lower through-hole of the described valve rod lower end that is used to be rotatably connected, be with axle sleeve in the described lower through-hole, the lower end of described valve rod is inserted in the described axle sleeve and with described axle sleeve rotation and is cooperated.
5. but the dismounting maintenance type butterfly valve of exempting from as claimed in claim 4, the bottom that it is characterized in that described valve body is provided with bottom, described bottom is positioned at the below of described axle sleeve, is bolted to connection on the main body of described valve body, and closes the under shed of described lumen.
6. but the dismounting maintenance type butterfly valve of exempting from as claimed in claim 5, the medial axis that it is characterized in that the described valve rod in upper edge, bottom surface of described valve rod is provided with cylindrical groove, and the inwall of described bottom is provided with the rotation back shaft that matches with the position and the shape of described cylindrical groove.
But 7. as claim 1,2,3,4, the 5 or 6 described dismounting maintenance type butterfly valves of exempting from, it is characterized in that described valve body lumen upper shed be shaped as prismatic or ellipse.
8. but the dismounting maintenance type butterfly valve of exempting from as claimed in claim 8 is characterized in that the sealing surface of described butterfly plate is provided with the seal ring that constitutes sealing pair with the valve seat of described valve body.
9. but the dismounting maintenance type butterfly valve of exempting from as claimed in claim 9 is characterized in that the top of described valve rod is provided with handle, and described handle and described valve rod removably connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200789777U CN202001624U (en) | 2011-03-18 | 2011-03-18 | Disassembly-free online maintaining type butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200789777U CN202001624U (en) | 2011-03-18 | 2011-03-18 | Disassembly-free online maintaining type butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202001624U true CN202001624U (en) | 2011-10-05 |
Family
ID=44704365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200789777U Expired - Lifetime CN202001624U (en) | 2011-03-18 | 2011-03-18 | Disassembly-free online maintaining type butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202001624U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470792A (en) * | 2013-09-23 | 2013-12-25 | 南通龙源电站阀门有限公司 | Triple-eccentric high-pressure butterfly valve capable of realizing online replacement of valve seat |
| CN111795158A (en) * | 2020-07-11 | 2020-10-20 | 济南德创试验仪器有限公司 | Butterfly valve easy to maintain |
-
2011
- 2011-03-18 CN CN2011200789777U patent/CN202001624U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470792A (en) * | 2013-09-23 | 2013-12-25 | 南通龙源电站阀门有限公司 | Triple-eccentric high-pressure butterfly valve capable of realizing online replacement of valve seat |
| CN111795158A (en) * | 2020-07-11 | 2020-10-20 | 济南德创试验仪器有限公司 | Butterfly valve easy to maintain |
| CN111795158B (en) * | 2020-07-11 | 2022-03-18 | 云和立信泵阀制造有限公司 | Butterfly valve easy to maintain |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SUNGO VALVES GROUP CO., LTD. Free format text: FORMER OWNER: ZHAO LEI Effective date: 20120329 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120329 Address after: 325105 Zhejiang province Yongjia Dong'ou Industrial Zone Patentee after: SUNGO VALVES GROUP CO., LTD. Address before: 325105 Zhejiang province Yongjia County Oubei town Dong'ou industrial zone is the valve group Co. Ltd. Patentee before: Zhao Lei |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111005 |