CN203051798U - Double-eccentric metal elastic sealing butterfly valve - Google Patents
Double-eccentric metal elastic sealing butterfly valve Download PDFInfo
- Publication number
- CN203051798U CN203051798U CN 201320078679 CN201320078679U CN203051798U CN 203051798 U CN203051798 U CN 203051798U CN 201320078679 CN201320078679 CN 201320078679 CN 201320078679 U CN201320078679 U CN 201320078679U CN 203051798 U CN203051798 U CN 203051798U
- Authority
- CN
- China
- Prior art keywords
- valve
- butterfly
- valve body
- valve seat
- butterfly plate
- 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
Images
Landscapes
- Lift Valve (AREA)
Abstract
The utility model relates to the technical field of a butterfly valve, in particular to a double-eccentric metal elastic sealing butterfly valve. The double-eccentric metal elastic sealing butterfly valve comprises a valve body, a valve seat, a valve rod, a butterfly plate, a pressing sleeve and a transmission device, wherein an inner cavity of the valve body is provided with a valve seat groove, and the valve seat is arranged in the valve seat groove; one end of the valve seat is in sealing match with the valve seat groove, and the other end of the valve seat is fixedly arranged in the inner cavity of the valve body through the pressing sleeve; the pressing sleeve is adjustably connected with the valve body through an inside hexagonal bolt; the sealing surface of the butterfly plate is in mutual sealing match with the sealing surface of the valve seat, and an upper shaft hole and a lower shaft hole of the butterfly plate are respectively and fixedly connected with the valve rod; and one end of the valve rod is inserted into a lower shaft hole of the valve body by penetrating through the shaft holes of the butterfly plate and a lower shaft sleeve, the tail end of the valve rod is provided with split collars which are fixedly arranged in the valve body through an end cover, and the upper end of the valve rod is connected with a worm transmission device together through an upper shaft sleeve, a separation ring, a packing seat, packings and a packing gland. The double-eccentric metal elastic sealing butterfly valve disclosed by the utility model is made by adopting a double-eccentric structure, and the service life of a valve can be prevented from being affected by sealing interference between the sealing surfaces of the butterfly plate and the valve seat during a process of designing and manufacturing metal sealing butterfly valves in medium and small calibers.
Description
Technical field
The utility model relates to the butterfly valve technical field, particularly a kind of pair of eccentric metal elastic packing butterfly valve.
Background technique
Butterfly valve generally is installed in the water supply and sewerage pipeline system, is used for the fluid of pipe-line system is cut off and throttling action.The metal current seal butterfly valve is comparatively common with the project organization of three eccentric multi-level metallic sealing butterfly valves usually, this project organization causes during small-bore metallic sealing butterfly valve to form between seal ring on the butterfly plate and the valve body sealing surface in being applied to easily interferes, and influences the working life of valve.Therefore, the interference problem on the valve sealing face designs that a kind of sealability is reliable, long service life, two eccentric metal elastic packing butterfly valves rational in infrastructure be that ten minutes is necessary.
The model utility content
The purpose of this utility model is at the deficiencies in the prior art, provide a kind of simple in structure, fabricating cost is low, two eccentric metal elastic packing butterfly valves of good sealing effect.
For achieving the above object, the utility model by the following technical solutions.
A kind of pair of eccentric metal elastic packing butterfly valve described in the utility model, it comprises valve body, valve seat, valve rod, butterfly plate, gland and transmission device; The two ends, the left and right sides of described valve body are respectively equipped with flange plate, and its inner chamber is provided with the valve seat groove; Described valve seat is set in the valve seat groove, and an end and valve seat groove are sealed and matched, and the other end is fixed in the body cavity by gland; Described gland is undertaken regulating by hexagon socket head cap screw I and valve body and is connected; Described butterfly plate is set in the intermediate portion of body cavity, and sealing surface and the sealing surface of seat of butterfly plate are sealed and matched mutually, and the upper shaft hole of butterfly plate is fixedlyed connected with valve rod respectively with lower shaft hole; Described valve rod one end passes in the axis hole of butterfly plate and the lower shaft hole that Lower shaft sleeve is inserted into valve body, the end of valve rod is provided with divided ring and is fixed in the valve body by end cap, and Upper shaft sleeve, spacer ring, Packing seat, filler and Gland are passed in the upper end of valve rod and worm gearing is connected together; Described filler is installed in the packing groove of valve body, and its lower end is provided with Packing seat, and the upper end is provided with Gland and is fixed in the valve body by Gland; Described Gland is connected to one by socket head screw II and valve body.
Further, described transmission device is divided into worm gearing and bevel gearing, and described worm gearing is installed on the middle flange of valve body and by the hexagon head bolt II and is fixed, and its worm gear and valve rod link together by spline fitted; Described bevel gearing is fixedly connected on the end face of worm gearing, the worm screw of its gearwheel and worm gearing is connected to one by flat key, its small gear is provided with handwheel, and handwheel is connected to one by flat key and hexagon head bolt and small gear.
Further, the Placement that described valve rod combines with Placement employing flat key and the straight pin of butterfly plate, the upper shaft hole place of butterfly plate adopts flat key to be connected with valve rod, and its lower shaft hole place is fixed together by straight pin and valve rod.
Further, described valve seat adopts the stainless steel coil processing and fabricating to form, and its cross section is half ear shape structure, and the inner ring surface of valve seat and the sealing surface on the butterfly plate are sealed and matched mutually, and by butterfly plate to its extruding force adjustment sealability of can stretch automatically.
After adopting said structure, the utility model beneficial effect is: the utility model is a kind of pair of eccentric metal elastic packing butterfly valve, valve adopts two eccentric structures to design, in design and in making in the small-bore metallic sealing butterfly valve process, thereby can avoid seal interference between butterfly plate sealing surface and the valve seat to influence the working life of valve; In addition, the means of fixation that the Placement between the valve rod of valve and the butterfly plate adopts flat key to combine with straight pin, thus can avoid influencing the leakage that the switching motion of valve causes valve because straight pin drops or ruptures.
Description of drawings
Fig. 1 is the utility model cross-sectional view.
Fig. 2 is the valve seat cross-sectional view.
Among the figure:
1, valve body 2, end cap 3, hexagon head bolt I 4, O shape circle
5, divided ring 6, Lower shaft sleeve 7, socket head screw I 8, gland
9, valve seat 10, straight pin 11, butterfly plate 12, valve rod
13, flat key 14, Upper shaft sleeve 15, spacer ring 16, Packing seat
17, filler 18, socket head screw II 19, Gland 20, hexagon head bolt II
21, worm gearing 22, bevel gearing 23, handwheel
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
Extremely shown in Figure 2 as Fig. 1, a kind of pair of eccentric metal elastic packing butterfly valve described in the utility model, it comprises valve body 1, valve seat 9, valve rod 12, butterfly plate 11, gland 8 and transmission device, above-mentioned several parts constitute the utility model agent structures.
The two ends, the left and right sides of described valve body 1 are respectively equipped with flange plate, its inner chamber is provided with the valve seat groove, be provided with valve seat 9 in the groove, described valve seat 9 is the stainless steel seal ring, its shape of cross section is half ear shape, one end of valve seat 9 pushes against the valve seat groove, the other end is fixed in the valve seat groove by gland 8, when butterfly plate 11 sealing surfaces contact with its inner ring surface, stretch automatically and cooperate with the end face seal of valve seat groove and gland 8 respectively in valve seat 9 two ends, one end of described gland 8 can be regulated by socket head screw I 7 and valve body 1 and link together, the end face of the other end and valve seat 9 pushes against mutually, the project organization of described butterfly plate 11 adopts M type structure, the sealing surface of butterfly plate 11 is that stainless steel coil processes from strand, when valve is in closed condition, butterfly plate 11 sealing surfaces and valve seat 9 inner ring surfaces are sealed and matched together mutually, on the butterfly plate 11, lower shaft hole is connected to one with valve rod 12 by flat key 13 and straight pin 10 respectively, described valve rod 12 1 ends pass the axis hole on the butterfly plate 11, Lower shaft sleeve 6 inserts the lower shaft nose end of valve body 1, the end of valve rod 12 is provided with divided ring 5, divided ring 5 is fixed in valve body 1 inner chamber by end cap 2, the other end of valve rod 12 passes Upper shaft sleeve 14, spacer ring 15, Packing seat 16, filler 17 and Gland 19 and cooperatively interact by spline and worm gearing 21 links together, described end cap 2 is provided with O shape circle 4 and is sealed and matched with the axis hole of valve body 1, end cap 2 is connected to one by hexagon head bolt I 3 and valve body 1, described filler 17 is installed in the packing groove of valve body 1, its lower end is provided with Packing seat 16, the upper end is provided with Gland 19 and is fixed in the valve body 1 by Gland 19, and described Gland 19 is connected to one by socket head screw II 18 and valve body 1.
Described transmission device is divided into worm gearing 21 and bevel gearing 22, and described worm gearing 21 is installed on the middle flange of valve body 1 and by hexagon head bolt II 20 and is fixed, and its worm gear and valve rod 12 link together by spline fitted; Described bevel gearing 22 is fixedly connected on the end face of worm gearing 21, the worm screw of its gearwheel and worm gearing 21 is connected to one by flat key, its small gear is provided with handwheel, handwheel 23 is connected to one by flat key and hexagon head bolt and small gear, can realize the switching motion of valve when rotating handwheel 23.
The above only is preferred embodiments of the present utility model, so 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. two eccentric metal elastic packing butterfly valve, it comprises valve body (1), valve seat (9), valve rod (12), butterfly plate (11), gland (8) and transmission device, it is characterized in that: the two ends, the left and right sides of described valve body (1) are respectively equipped with flange plate, its inner chamber is provided with the valve seat groove, described valve seat (9) is set in the valve seat groove, one end and valve seat groove are sealed and matched, the other end is fixed in valve body (1) inner chamber by gland (8), described gland (8) carries out regulating with valve body (1) by hexagon socket head cap screw I (7) and is connected, described butterfly plate (11) is set in the intermediate portion of valve body (1) inner chamber, the sealing surface of butterfly plate (11) and valve seat (9) sealing surface are sealed and matched mutually, the upper shaft hole of butterfly plate (11) is fixedlyed connected with valve rod (12) respectively with lower shaft hole, axis hole and Lower shaft sleeve that described valve rod (12) one ends pass butterfly plate (11) are inserted in the lower shaft hole of valve body (1), Upper shaft sleeve (14) is passed in the upper end of valve rod (1), spacer ring (15), Packing seat (16), filler (17) and Gland (19) are connected together with worm gearing (21), described filler (17) is installed in the packing groove of valve body (1), its lower end is provided with Packing seat (16), the upper end is provided with Gland (19) and is fixed in the valve body (1) by Gland (19), and described Gland (19) is connected to one by socket head screw II (18) and valve body (1).
2. according to claim 1 pair of eccentric metal elastic packing butterfly valve, it is characterized in that: the cross section of described valve seat (9) is half ear shape, its inner ring surface and butterfly plate (11) sealing surface is sealed and matched mutually.
3. according to claim 1 pair of eccentric metal elastic packing butterfly valve is characterized in that: the fixedly connected mode that described valve rod (12) and the Placement of butterfly plate (11) adopt flat key (13) to combine with straight pin (10).
4. according to claim 1 pair of eccentric metal elastic packing butterfly valve, it is characterized in that: the end of described valve rod (12) is provided with divided ring (5), and divided ring (5) is fixed in the valve body (1) by end cap (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320078679 CN203051798U (en) | 2013-02-20 | 2013-02-20 | Double-eccentric metal elastic sealing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320078679 CN203051798U (en) | 2013-02-20 | 2013-02-20 | Double-eccentric metal elastic sealing butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203051798U true CN203051798U (en) | 2013-07-10 |
Family
ID=48734752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320078679 Expired - Fee Related CN203051798U (en) | 2013-02-20 | 2013-02-20 | Double-eccentric metal elastic sealing butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203051798U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242754A (en) * | 2019-07-10 | 2019-09-17 | 车碧怀 | A kind of three eccentricity soft sealing butterfly valve |
| CN110332322A (en) * | 2019-08-13 | 2019-10-15 | 天津卡尔斯阀门股份有限公司 | A kind of double eccentric flexible sealing flange butterflies |
-
2013
- 2013-02-20 CN CN 201320078679 patent/CN203051798U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242754A (en) * | 2019-07-10 | 2019-09-17 | 车碧怀 | A kind of three eccentricity soft sealing butterfly valve |
| CN110332322A (en) * | 2019-08-13 | 2019-10-15 | 天津卡尔斯阀门股份有限公司 | A kind of double eccentric flexible sealing flange butterflies |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203051798U (en) | Double-eccentric metal elastic sealing butterfly valve | |
| CN201627987U (en) | Cutoff one-way valve | |
| CN203453518U (en) | Plug valve | |
| CN103410997B (en) | High pressure relief formula double disc parallel seat single-face hard sealing gate valve | |
| CN203532777U (en) | Three-eccentric hard-sealing butterfly valve | |
| CN203202254U (en) | Double-eccentric and bidirectional metallic seal butterfly valve | |
| CN204437296U (en) | Embedded forging Y type is without bonnet stop valve | |
| CN102829205A (en) | Anti-corrosive anti-pollution environment-friendly plastic brake valve with flexible seal and machining process thereof | |
| CN203335949U (en) | Lifting type check valve | |
| CN202992204U (en) | Hydraulic butterfly valve | |
| CN205101608U (en) | Liquid level valves | |
| CN204692635U (en) | Ball valve ball seal structure | |
| CN202852004U (en) | Triple eccentric hard seal butterfly valve | |
| CN203641546U (en) | Hydraulic drive flat valve | |
| CN201502730U (en) | Cock-type mud valve | |
| CN207349474U (en) | A kind of wedge action valve of stabilized seal | |
| CN203335920U (en) | Manual ball valve | |
| CN203115161U (en) | One-piece type internal thread ball valve | |
| CN102954236A (en) | Stop valve based on high-tightness valve clack | |
| CN204573249U (en) | Forging duplex high-pressure discharge valve | |
| CN203627871U (en) | Double-nut straight-pipe threaded ball valve | |
| CN204300391U (en) | A kind of two way sealed high-performance butterfly valve | |
| CN204420175U (en) | Thread bush elastomeric composition valve seat top-loading ball valve | |
| CN202851994U (en) | Stop valve | |
| CN202674457U (en) | Valve body for grooved butterfly valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20140220 |