CN203906831U - Butterfly valve - Google Patents
Butterfly valve Download PDFInfo
- Publication number
- CN203906831U CN203906831U CN201420339596.3U CN201420339596U CN203906831U CN 203906831 U CN203906831 U CN 203906831U CN 201420339596 U CN201420339596 U CN 201420339596U CN 203906831 U CN203906831 U CN 203906831U
- Authority
- CN
- China
- Prior art keywords
- valve
- butterfly
- butterfly plate
- valve rod
- keyway
- 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
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- Lift Valve (AREA)
Abstract
The utility model discloses a butterfly valve. The technical scheme is that one end surface of a butterfly plate is provided with two fixing parts which are arranged at an interval, the two fixing parts are respectively provided with a fixing hole and are sheathed on a valve stem, key slots are formed in the inner walls of the fixing holes, the key slots and pin holes are arranged at an interval of 180 degrees, and positioning keys which are matched with the key slots are arranged on the valve stem. Since the buttery plate of the butterfly valve is sheathed on the valve stem through the fixing parts and the positioning keys arranged on the valve stem are matched with the key slots in the fixing parts on the butterfly plate, the butterfly plate and the valve stem can be quickly guided to accurate positions, the pin holes in the butterfly plate and the valve stem can be mutually aligned, the butterfly plate and the valve stem are not needed to relatively rotate for alignment and the assembling of the butterfly valve is facilitated.
Description
Technical field
The utility model relates to a kind of valve field, and more particularly, it relates to a kind of butterfly valve.
Background technique
Butterfly valve open-shut device is a discoidal butterfly plate, and the axis around himself in valve body rotates, thereby reaches the object that opens and closes or regulate.Butterfly valve standard-sized sheet is normally less than 80 ° to complete shut-down, and butterfly valve and butterfly bar itself do not have self-lock ability, for the location of butterfly plate, on valve rod, install worm speed reducer additional.Adopt worm speed reducer, not only can make butterfly plate there is self-lock ability, butterfly plate is stopped on arbitrary position, can also improve the operating characteristics of valve.
Traditional butterfly valve, generally include valve body, valve rod and butterfly plate, valve stem tip is connected with Worm gear case, and Worm gear case is provided with its operation handwheel, the corresponding valve rod bottom position of valve body is provided with bottom, butterfly plate is set on valve rod and fixes with pin, but this mounting type, after needing butterfly plate to be set on valve rod, valve rod and butterfly plate relatively rotate, to first aim at butterfly plate and valve rod is provided with pin hole, then be fixedly connected with by pin, be not easy to butterfly valve assembling.
Model utility content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of butterfly valve of being convenient to assembling.
For achieving the above object, the utility model provides following technological scheme: a kind of butterfly valve, comprise valve body, valve rod, bottom, described valve rod runs through valve body one end and is connected with Worm gear case, the other end is connected with bottom, described valve body is provided with the valve opening for liquid communication, in described valve opening, be provided with the butterfly plate for controlling valve opening discharge value size, described valve opening and butterfly plate are suitable, described butterfly plate one end face is provided with two spaced fixing parts, described two fixing parts are equipped with fixed hole and are set on valve rod, described fixing part is provided with the pin hole for being fixedly connected with butterfly plate and valve rod, described pin hole axis and valve rod axis are vertical setting, in pin hole, be provided with the fixing pin suitable with it, the inwall of described fixed hole is provided with keyway, described keyway and pin hole are 180 degree intervals and arrange, described valve rod is provided with the positioning key suitable with keyway.
By adopting technique scheme, butterfly plate is set on valve rod by fixing part, the positioning key being arranged on valve rod matches with keyway on butterfly plate fixing part, can guide fast butterfly plate and valve rod to be placed in accurate location, make butterfly plate and valve rod be provided with pin hole and mutually aim at, not need butterfly plate and valve rod to relatively rotate and proofread, simultaneously because described keyway and pin hole are 180 degree intervals settings, be convenient to the installation of pin and positioning key, increase work efficiency, be convenient to butterfly valve assembling.
The utility model is further set to: the two side of described keyway is horn-like setting, and the little opening end of this keyway is towards bottom.The described valve rod that is provided with positioning key inserts from the large opening end of keyway, because the two side of keyway is horn-like setting, when valve rod is during in rigging position, keyway can stop valve rod to continue to insert downwards, can make more fast butterfly plate and valve rod be provided with pin hole and mutually aim at, after installing simultaneously, keyway also can effectively limit valve rod and move down, and can effectively alleviate butterfly plate and be applied to the active force on pin, prevents fixing pin distortion, when making valve dismounting and change, be convenient to fixing pin and extract.
The utility model is further set to: described fixing pin both ends of the surface are equipped with chamfering, and wherein an end face relative with valve rod is provided with the tapped hole caving inward.Fixing pin arranges chamfering and is convenient to enter butterfly plate and valve rod and is provided with pin hole and is fixed and is connected, and tapped hole is at one end set simultaneously, can, by extracting tool and tapped hole, pin be extracted from pin hole, is convenient to butterfly plate and valve rod dismounting and change.
The utility model is further set to: the outer side wall of described fixing pin is provided with vent slot, and described vent slot cross section is semicircle.When pin coordinates with pin hole, in pin hole, air can be discharged by vent slot, is convenient to pin and is inserted in pin hole.
The utility model is further set to: the relative fixing part of butterfly plate other end is provided with annular boss, described annular boss is provided with the seal ring for butterfly plate and valve opening are sealed and matched, described seal ring is set on annular boss, described butterfly plate is provided with the annular pressing plate being fixedly connected with it, and described seal ring is clamped between butterfly plate and annular pressing plate.Described seal ring is fixed jointly by butterfly plate and annular pressing plate, is convenient to seal ring Assembly And Disassembly.
Brief description of the drawings
Fig. 1 is the partial sectional view of a kind of butterfly valve of the utility model;
Fig. 2 is the sectional view of butterfly plate 5 in Fig. 1;
Fig. 3 is the sectional view of fixing pin 6 in Fig. 1.
In figure 1, valve body; 2, valve rod; 3, bottom; 4, Worm gear case; 5, butterfly plate; 6, fixing pin; 7, positioning key; 8, seal ring; 9, annular pressing plate; 11, valve opening; 51, fixing part; 52, annular boss; 61, tapped hole; 62, vent slot; 511, fixed hole; 512, pin hole; 513, keyway.
Embodiment
Referring to figs. 1 through Fig. 3, a kind of butterfly valve of the utility model is described further.
A kind of butterfly valve, comprise valve body 1, valve rod 2, bottom 3, one end that described valve rod 2 runs through valve body 1 is connected with Worm gear case 4, the other end is connected with bottom 3, described valve body is provided with the valve opening 11 for liquid communication, in described valve opening 11, be provided with the butterfly plate 5 for controlling valve opening discharge value size, described valve opening 11 is suitable with butterfly plate 5, described butterfly plate 5 one end faces are provided with two spaced fixing parts 51, described two fixing parts 51 are equipped with fixed hole 511 and are set on valve rod 2, described fixing part 51 is provided with the pin hole 512 for being fixedly connected with butterfly plate 5 and valve rod 2, described pin hole 512 axis and valve rod 2 axis are vertical setting, in pin hole 512, be provided with the fixing pin suitable with it 6, be connected with pin hole 512 for the ease of fixing pin 6 and dismounting, can be equipped with chamfering in described fixing pin 6 both ends of the surface, wherein an end face relative with valve rod 2 is provided with the tapped hole 61 caving inward, the outer side wall of described fixing pin 6 is provided with vent slot 62, described vent slot 62 cross sections are semicircle, the inwall of described fixed hole 511 is provided with keyway 513, described keyway 513 is 180 degree intervals with pin hole 512 and arranges, described valve rod 2 is provided with the positioning key 7 suitable with keyway 513, described positioning key 7 can be bolted on valve rod 2, positioning key 7 length are preferably less than the length of keyway 513, be convenient to like this positioning key 7 and keyway 513, butterfly plate 5 is set on valve rod 2 by fixing part 51, the positioning key 7 being arranged on valve rod 2 matches with keyway 513 on butterfly plate 5 fixing parts, can guide fast butterfly plate 5 and valve rod 2 to be placed in accurate location, making butterfly plate 5 be provided with pin hole with valve rod 2 aims at mutually, not needing butterfly plate 5 and valve rod 2 to relatively rotate proofreads, be convenient to butterfly valve assembling.
The two side of described keyway 513 can be horn-like setting, the described valve rod 2 that is provided with positioning key 7 inserts from the large opening end of keyway 513, because the two side of keyway 513 is horn-like setting, when valve rod 2 is during in rigging position, keyway 513 can stop valve rod 2 to continue to insert downwards, can make more fast butterfly plate 5 be provided with pin hole with valve rod 2 aims at mutually, after installing simultaneously, keyway 513 also can effectively limit valve rod 2 and move down, can effectively alleviate butterfly plate and be applied to the active force on pin, prevent that fixing pin 6 is out of shape, when making valve dismounting and change, being convenient to fixing pin 6 extracts.
Butterfly plate 5 relative fixing part 51 other ends are provided with annular boss 52, described annular boss 52 is provided with the seal ring 8 coordinating with valve opening 11 for sealing butterfly plate 5, described seal ring 8 is set on annular boss 52, described butterfly plate 5 is provided with the annular pressing plate 9 being fixedly connected with it, described seal ring 8 is clamped between butterfly plate 5 and annular pressing plate 9, described seal ring 8 is fixed jointly by butterfly plate 5 and annular pressing plate 9, is convenient to seal ring 8 Assembly And Disassemblies.
Claims (5)
1. a butterfly valve, comprise valve body, valve rod, bottom, one end that described valve rod runs through valve body is connected with Worm gear case, the other end is connected with bottom, described valve body is provided with the valve opening for liquid communication, in described valve opening, be provided with the butterfly plate for controlling valve opening discharge value size, described valve opening and butterfly plate are suitable, described butterfly plate one end face is provided with two spaced fixing parts, described two fixing parts are equipped with fixed hole and are set on valve rod, described fixing part is provided with the pin hole for being fixedly connected with butterfly plate and valve rod, described pin hole axis and valve rod axis are vertical setting, in pin hole, be provided with the fixing pin suitable with it, it is characterized in that: the inwall of described fixed hole is provided with keyway, described keyway and pin hole are 180 degree intervals and arrange, described valve rod is provided with the positioning key suitable with keyway.
2. a kind of butterfly valve according to claim 1, is characterized in that: the two side of described keyway is horn-like setting, the little opening end of this keyway is towards bottom.
3. a kind of butterfly valve according to claim 1 and 2, is characterized in that: described fixing pin both ends of the surface are equipped with chamfering, and wherein an end face relative with valve rod is provided with the tapped hole caving inward.
4. a kind of butterfly valve according to claim 3, is characterized in that: the outer side wall of described fixing pin is provided with vent slot, and described vent slot cross section is semicircle.
5. a kind of butterfly valve according to claim 4, it is characterized in that: the relative fixing part of butterfly plate other end is provided with annular boss, described annular boss is provided with the seal ring for butterfly plate and valve opening are sealed and matched, described seal ring is set on annular boss, described butterfly plate is provided with the annular pressing plate being fixedly connected with it, and described seal ring is clamped between butterfly plate and annular pressing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420339596.3U CN203906831U (en) | 2014-06-24 | 2014-06-24 | Butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420339596.3U CN203906831U (en) | 2014-06-24 | 2014-06-24 | Butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203906831U true CN203906831U (en) | 2014-10-29 |
Family
ID=51781112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420339596.3U Expired - Fee Related CN203906831U (en) | 2014-06-24 | 2014-06-24 | Butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203906831U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI710717B (en) * | 2017-04-10 | 2020-11-21 | 日商伊格爾工業股份有限公司 | Butterfly valve |
-
2014
- 2014-06-24 CN CN201420339596.3U patent/CN203906831U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI710717B (en) * | 2017-04-10 | 2020-11-21 | 日商伊格爾工業股份有限公司 | Butterfly valve |
| US11391378B2 (en) * | 2017-04-10 | 2022-07-19 | Eagle Industry Co., Ltd. | Butterfly valve |
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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: 20141029 Termination date: 20190624 |