CN202852004U - Triple eccentric hard seal butterfly valve - Google Patents
Triple eccentric hard seal butterfly valve Download PDFInfo
- Publication number
- CN202852004U CN202852004U CN 201220590988 CN201220590988U CN202852004U CN 202852004 U CN202852004 U CN 202852004U CN 201220590988 CN201220590988 CN 201220590988 CN 201220590988 U CN201220590988 U CN 201220590988U CN 202852004 U CN202852004 U CN 202852004U
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- CN
- China
- Prior art keywords
- valve rod
- valve
- butterfly plate
- valve body
- butterfly
- 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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Abstract
The utility model relates to the technical field of butterfly valves, in particular to a triple eccentric hard seal butterfly valve which comprises a valve body, a valve rod, a valve element and a worm gear transmission device. The valve rod is formed by an upper valve rod and a lower valve rod. One end of the upper valve rod is inserted into an upper shaft hole of a butterfly plate through an upper shaft sleeve on the valve body and is fixedly connected with one end of the butterfly plate, and the other end of the upper valve rod is matched with the valve body in a sealed mode and is connected with the worm gear transmission device in a matched mode. One end of the lower valve rod is inserted into a lower shaft hole of the butterfly plate through a lower shaft sleeve on the valve body and is connected with the other end of the butterfly plate in a matched mode, and the other end of the lower valve rod is matched with the valve body in a sealed mode. The valve element comprises the butterfly plate, a valve seat and a pressing ring. The valve seat is mounted on a platform of the butterfly plate and is tightly pressed through the pressing ring and connected with the butterfly plate as a whole. The outer contour of the valve seat is matched with a sealing surface on the valve body in a sealed mode. The pressing ring is fixedly connected on the butterfly plate into a whole through inner hexagonal head screws. The triple eccentric hard seal butterfly valve has the advantages of being simple in structure, good in sealing effects, and stable in opening and closing.
Description
Technical field
The utility model relates to the butterfly valve technical field, particularly a kind of three eccentric hard sealed flygates.
Background technique
Three eccentric hard sealed flygates generally are installed in the water supply and sewerage pipeline system, are used for convection cell and cut off and throttling action.Being connected between the valve rod of known three eccentric hard sealed flygates and the butterfly plate generally adopts straight pin to be connected and fixed, be subject to for a long time the impact of high-pressure hydraulic when valve, the impact of the extraneous factors such as vibrations, be easy to cause taper pin to come off or twist off, thereby three eccentric hard sealed flygates can't normally be opened and closed, affect whole pipe-line system.In addition, when known three eccentric hard sealed flygates link to each other with worm gearing, generally adopt flat key to be fixed connection, this Placement has limited the direction of handwheel on the worm gearing, in specific occasion, can't change the demand that the handwheel direction satisfies the client, cause the inconvenience of user on valve operation.Think and overcome above-mentioned defective, three eccentric hard sealed flygates are carried out structural improvement, be very necessary.
The model utility content
The purpose of this utility model is for the deficiencies in the prior art, provides a kind of rational in infrastructure, and sealability is reliable, stable drive, three easy to operate eccentric hard sealed flygates.
For achieving the above object, the utility model by the following technical solutions.
A kind of three eccentric hard sealed flygates described in the utility model comprise valve body, butterfly plate, valve rod, valve seat and worm gearing.Described valve rod is comprised of upper valve rod and lower valve rod, described upper valve rod one end is inserted into by being arranged on Upper shaft sleeve on the valve body in the upper shaft hole of butterfly plate and with butterfly plate one end and is fixedly connected with, and the upper valve rod the other end cooperates with valve seal and is connected with worm gearing; Described lower valve rod one end is inserted into by being arranged on Lower shaft sleeve on the valve body in the lower shaft hole of butterfly plate and with the butterfly plate the other end and is connected, and the lower valve rod the other end cooperates with valve seal; Described valve seat is installed on the platform of butterfly plate and is connected as a single entity by pressing plate and butterfly plate, and the external frame of valve seat and the sealing surface on the valve body are sealed and matched.
Further, the top of described upper valve rod and the cross section of end are respectively spline-shaped and hexagon shape, the upper valve rod end is inserted into by being arranged on Upper shaft sleeve on the valve body to be connected in the upper shaft hole of butterfly plate and is integrated, the upper valve rod top is connected by Gland and filler and worm gearing, and described Gland is connected to one by stud, spring washer I and hexagon nut I and valve body; Described lower valve rod one end is inserted into by being arranged on Lower shaft sleeve on the valve body in the lower shaft hole of butterfly plate and is connected with butterfly plate, the lower valve rod the other end cooperates with valve seal by end cap and metal packing washer, and described end cap is connected to one by hexagon head bolt I and valve body.
Further, described valve seat is by carbon seal ring and stainless steel seal ring two-part bonding forming, and the external frame of valve seat is processed into ellipse, and its size is consistent with the interior cross section of the sealing surface on the valve body, both sealings of working in coordination.
After adopting said structure, the utility model beneficial effect is: the utility model upper valve rod with adopt the Hexagon mode that is connected being connected of butterfly plate, the straight pin that has solved valve rod and butterfly plate joint is because coming off or breakage problem causes the valve opening and closing inefficacy; In addition, upper valve rod and worm gearing adopt spline joint, can make things convenient for the user user-friendly according to the direction of handwheel on the needs change worm gearing of actual conditions.
Description of drawings
Fig. 1 is the utility model situation cross-sectional view.
Fig. 2 is the butterfly plate cross-sectional view.
Among the figure:
1. valve body 2. end caps 3. hexagon head bolt I 4. metal packing washers
5. adjust packing ring 6. Lower shaft sleeves 7. lower valve rods 8. valve seats
9. trim ring 10. butterfly plates 11. socket head screws 12. upper valve rods
13. Upper shaft sleeve 14. spacer rings 15. fillers 16. Glands
17. stud 18. spring washer I 19. hexagon nut I 20. hexagon head bolt II
21. spring washer II 22. hexagon nut II 23. supports 24. hexagon head bolt III
25. handwheel 26. worm gearings
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
To shown in Figure 2, a kind of three eccentric hard sealed flygates described in the utility model comprise valve body 1, valve rod, spool and worm gearing 26 such as Fig. 1, and above-mentioned several parts consist of the utility model agent structure.
Described valve rod forms 7 by upper valve rod 12 and lower valve rod, the top of upper valve rod 12 and the cross section of end are respectively spline-shaped and hexagon shape, upper valve rod 12 ends are inserted into by being arranged on Upper shaft sleeve 13 on the valve body 1 to be connected in the upper shaft hole of butterfly plate 10 and are integrated, upper valve rod 12 tops are connected with worm gearing 26 by Gland 16 and filler 15, and described Gland 16 is connected to one with valve body 1 by stud 17, spring washer I 18 and hexagon nut I 19; Described lower valve rod 7 one ends are inserted into by being arranged on Lower shaft sleeve 6 on the valve body 1 in the lower shaft hole of butterfly plate 10 and are connected with butterfly plate 10, lower valve rod 7 the other ends are sealed and matched with valve body 1 by end cap 2 and metal packing washer 4, and described end cap 2 is connected to one by hexagon head bolt I 3 and valve body 1.
Described spool, comprise butterfly plate 10, valve seat 8 and trim ring 9, described valve seat 8 is by carbon seal ring and stainless steel seal ring two-part bonding forming and be installed on the platform of butterfly plate 10, the sealing cross section of valve seat 8 is oval, its size is consistent with the interior cross section of the sealing surface on the valve body 1, both sealings of working in coordination; Described trim ring 9 is installed on the end face of butterfly plate 10, and the bottom plane of trim ring 9 is pushed down valve seat 8 and is fixed on the butterfly plate 10 by socket head screw 11, and butterfly plate 10, valve seat 8 and trim ring 9 threes are connected as one.
The top that described worm gearing 26 is installed in support 23 is connected and fixed the two by hexagon head bolt III 24 and is integrated, support 23 bottoms are installed in can be crossed hexagon head bolt II 20, spring washer II 18 and hexagon nut II 22 and be connected and fixed and be integrated on the middle end face of flange of valve body 1, worm gearing 26 adopts spline joint with the Placement of upper valve rod 12, connect cooperate comparatively compact in the opening-closing process of valve, be difficult for producing shaking phenomenon and also can according to user's demand can change worm gearing 26 installation directions control its handwheel 25 towards.
Butterfly valve apparatus is widely used at present, and other structure and principle are same as the prior art, repeat no more here.
The above only is better embodiment of the present utility model, therefore all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, is included in the utility model patent claim.
Claims (4)
1. eccentric hard sealed flygate, comprise valve body (1), butterfly plate (10), valve rod, valve seat (8) and worm gearing (26), it is characterized in that: described valve rod is comprised of upper valve rod (12) and lower valve rod (7), described upper valve rod (12) end is inserted into by being arranged on Upper shaft sleeve (13) on the valve body (1) to be connected in the upper shaft hole of butterfly plate (10) and is integrated, upper valve rod (12) top is connected with worm gearing (26) by Gland (16) and filler (15), and described Gland (16) is by stud (17), spring washer I (18) and hexagon nut I (19) are connected to one with valve body (1); Described lower valve rod (7) one ends are inserted into by being arranged on Lower shaft sleeve (6) on the valve body (1) in the lower shaft hole of butterfly plate (10) and with butterfly plate (10) and are connected, lower valve rod (7) the other end is sealed and matched with valve body (1) by end cap (2) and metal packing washer (4), and described end cap (2) is connected to one by hexagon head bolt I (3) and valve body (1); Described valve seat (8) is installed on the platform of butterfly plate (10) and is connected as a single entity by trim ring (9) and butterfly plate (10), and the sealing surface on the external frame of valve seat (8) and the valve body (1) is sealed and matched.
2. three eccentric hard sealed flygates according to claim 1 is characterized in that: the terminal cross section of described upper valve rod (12) is processed into interior hexagon in hexagon shape and butterfly plate (10) axis hole and is connected and is integrated; The top cross section of upper valve rod (12) is processed into spline-shaped and worm gearing (26) is connected.
3. three eccentric hard sealed flygates according to claim 1 is characterized in that: be provided with between described lower valve rod (7) and the end cap (2) and adjust packing ring (5).
4. three eccentric hard sealed flygates according to claim 1 is characterized in that: be provided with spacer ring (14) between described upper valve rod (12) and the Upper shaft sleeve (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220590988 CN202852004U (en) | 2012-11-12 | 2012-11-12 | Triple eccentric hard seal butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220590988 CN202852004U (en) | 2012-11-12 | 2012-11-12 | Triple eccentric hard seal butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202852004U true CN202852004U (en) | 2013-04-03 |
Family
ID=47983209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220590988 Expired - Fee Related CN202852004U (en) | 2012-11-12 | 2012-11-12 | Triple eccentric hard seal butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202852004U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090538A (en) * | 2015-09-17 | 2015-11-25 | 东台市远洋船舶配件有限公司 | Automatic-pressurizing seal butterfly valve |
| CN106523719A (en) * | 2016-11-29 | 2017-03-22 | 陈曙光 | Concave plate three-eccentric center butterfly valve |
-
2012
- 2012-11-12 CN CN 201220590988 patent/CN202852004U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090538A (en) * | 2015-09-17 | 2015-11-25 | 东台市远洋船舶配件有限公司 | Automatic-pressurizing seal butterfly valve |
| CN105090538B (en) * | 2015-09-17 | 2016-08-24 | 东台市远洋船舶配件有限公司 | From filling pressure sealing butterfly valve |
| CN106523719A (en) * | 2016-11-29 | 2017-03-22 | 陈曙光 | Concave plate three-eccentric center 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 |
Granted publication date: 20130403 Termination date: 20141112 |
|
| EXPY | Termination of patent right or utility model |