CN201836408U - Variable offset hard sealing butterfly valve - Google Patents
Variable offset hard sealing butterfly valve Download PDFInfo
- Publication number
- CN201836408U CN201836408U CN201020561941XU CN201020561941U CN201836408U CN 201836408 U CN201836408 U CN 201836408U CN 201020561941X U CN201020561941X U CN 201020561941XU CN 201020561941 U CN201020561941 U CN 201020561941U CN 201836408 U CN201836408 U CN 201836408U
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- China
- Prior art keywords
- valve
- butterfly
- valve rod
- control arm
- butterfly valve
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- Expired - Fee Related
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Abstract
The utility model discloses a variable offset hard sealing butterfly valve, which comprises a valve body, a butterfly plate, a valve stem, a disc spring and a valve stem control arm. The disc spring is fixedly disposed on the butterfly plate, and the valve stem control arm is connected with the valve stem movably. The disc spring and the valve rod control arm are mounted on an original typical double-offset hard sealing butterfly valve, and the valve stem control arm is utilized to control the state of the disc spring so as to lead the butterfly plate to displace slightly, thereby reducing friction of the butterfly valve during sealing process, improving sealing performance of the butterfly valve and prolonging service life of the butterfly valve. The variable offset hard sealing butterfly valve is widely applicable to coal gas, air and water pipelines in metallurgical industry, chemical industry, mine industry, building material industry and the like.
Description
Technical field
The utility model relates to a kind of valve, in particular, relates to the inclined to one side hard seal butterfly valve of a kind of change.
Background technique
See figures.1.and.2, Fig. 1 is the structural representation of two eccentric hard seal butterfly valves in the prior art, and Fig. 2 is that two eccentric hard seal butterfly valves are opened in the prior art, closes schematic diagram.By Fig. 1 and Fig. 2 as can be seen, the structural feature of typical two eccentric hard seal butterfly valves is: size of rotational axis of butterfly plate (being valve rod axis) and the biasing of butterfly plate sealing surface, and with valve channel biasing another one size.
When double eccentric butterfly valve was in full-gear, its butterfly plate sealing surface can break away from sealing surface of seat fully.But when butterfly valve opened and closed, the butterfly plate sealing surface had a process that gradually goes out to break away from and be fade-in extruding with respect to sealing surface of seat, produces mechanical wear thereby make between butterfly plate sealing surface and the sealing surface of seat.
Therefore, the two eccentric hard seal butterfly valve of this structure is to the sealability and the certain influence of generation in working life of butterfly valve.
The model utility content
The purpose of this utility model is to provide a kind of change inclined to one side hard seal butterfly valve, can reduce the friction of butterfly valve in seal process based on the utility model, and then improves the sealability of butterfly valve, prolongs the working life of butterfly valve.
The utility model discloses the inclined to one side hard seal butterfly valve of a kind of change, comprise valve body, butterfly plate, valve rod also comprises dish spring and valve rod control arm; Described butterfly plate is arranged in the described valve body by described valve rod and rotates, and described valve rod passes transmission shaft bearing and the fixed bearing block that is fixed on the described butterfly plate, links together with described butterfly plate; Described dish spring is fixedly installed on the described butterfly plate, and described valve rod control arm is connected with described valve handle activity.
The inclined to one side hard seal butterfly valve of above-mentioned change preferably also comprises dish plate positioning seat, and described dish plate is connected with described dish plate positioning seat, and described dish spring is fixedly connected on described dish plate positioning seat by spring compressor and is connected.
The inclined to one side hard seal butterfly valve of above-mentioned change, preferred described valve rod control arm is connected by taper pin with described valve rod.
The utility model is on the basis of the two eccentric hard seal butterfly valves of former typical case, dish spring and valve rod control arm are installed, are utilized the state of valve rod control arm control dish spring, make butterfly plate produce the displacement of trace, and then reduced the friction of butterfly valve in seal process, improve its sealability, increase the service life, can be widely used in metallurgy, chemical industry, the mine, the coal gas of industries such as building materials is on air and the waterpipe.
Description of drawings
Figure 1A is the structural representation of two eccentric hard seal butterfly valves in the prior art;
Figure 1B is the structural representation of two eccentric hard seal butterfly valves in the prior art;
Fig. 2 is that two eccentric hard seal butterfly valves are opened in the prior art, closes schematic diagram;
Fig. 3 becomes the structural representation of inclined to one side hard seal butterfly valve for the utility model embodiment;
Fig. 4 be among Fig. 3 A-A to sectional view;
Fig. 5 becomes the scheme of installation of inclined to one side hard seal butterfly valve for the utility model embodiment;
Fig. 6 becomes the structural representation of the spring compressor of inclined to one side hard seal butterfly valve for the utility model embodiment;
Fig. 7 A becomes the valve rod control arm structural representation of inclined to one side hard seal butterfly valve for the utility model embodiment;
Fig. 7 B is the side view of Fig. 7 A.
Embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 3 and Fig. 4 become the plan view and the left sectional view of inclined to one side hard seal butterfly valve respectively for this reason.As shown in Figure 3 and Figure 4, this becomes inclined to one side hard seal butterfly valve by valve body 3, butterfly plate 13, valve rod 1, positioning shaft bearing 4, compositions such as dish spring 10 and valve rod control arm 5.On the basis of the two eccentric hard seal butterfly valves of former typical case, dish spring 10 and valve rod control arm 5 have been increased.The mounting type of dish spring 10 places dish spring 10 on the butterfly plate positioning seat 14 as shown in Figure 5, its decrement is adjusted to rational position after, (Fig. 6) is fixed on the butterfly plate with spring compressor 15, an end fastening nut 16, firm welding.Valve rod control arm 5 (Fig. 7 A and Fig. 7 B) are installed, and as shown in Figure 3 and Figure 4, valve rod 1 passes valve body 3, through positioning shaft bearing 4, and valve rod control arm 5, transmission shaft bearing 6, location retainer 7 etc.Fixedly during valve rod control arm 5, join and bore two taper pin-holes on the valve rod control arm 5, and taper pin is installed, when lock bolt 11 is adjusted to valve rod control arm 5 and begins to contact minor axis 12 on the butterfly plate 13, contact with butterfly plate positioning seat 14, and, butterfly plate 13 and butterfly plate positioning seat 14 are closely linked.The installation of remaining part and common hard seal butterfly valve basically identical.
This driving mode that becomes inclined to one side hard seal butterfly valve is consistent with common butterfly valve, can be for manually, and electronic, pneumatic, surge etc.This key point that becomes inclined to one side hard seal butterfly valve action is: butterfly valve produces the displacement of trace earlier when opening, make the butterfly plate sealing surface break away from sealing surface of seat immediately, rotates to fully and opens; When butterfly valve cuts out, rotate to the butterfly plate sealing surface earlier when parallel, produce the displacement of trace again, make the contact of butterfly plate sealing surface and compress sealing surface of seat with sealing surface of seat.Operating process is as follows: when becoming inclined to one side hard seal butterfly valve and opening, valve actuator drives valve rod 1 and rotates, valve rod 1 drives 5 rotations of valve rod control arm, valve rod control arm 5 one ends begin to contact and top butterfly plate 13 on minor axis 12, the dish spring 10 that is installed on the butterfly plate 13 is compressed, butterfly plate 13 produces displacements, the butterfly plate sealing surface breaks away from sealing surface of seat immediately, afterwards, valve actuator continues to drive valve rod 1 and rotates, and the minor axis 12 on the valve rod 1 drive valve rod control arm 5 top butterfly plates 13 rotates to butterfly plate 13 and opens fully; When becoming inclined to one side hard seal butterfly valve and closing, valve actuator drives valve rod 1 backward rotation, valve rod 1 drives also backward rotation of valve rod control arm 5, lock bolt 11 contacts that valve rod control arm 5 the other ends are installed and the 13 beginning counterrotatings of top butterfly plate, when rotating to the butterfly plate sealing surface when parallel with sealing surface of seat, valve actuator continues to drive valve rod 1 backward rotation, valve rod 1 drives 5 rotations of valve rod control arm, valve rod control arm 5 leaves the minor axis 12 on the butterfly plate 13,10 resiliences of dish spring, the contact of butterfly plate sealing surface also compresses sealing surface of seat.This operating process that becomes inclined to one side hard seal butterfly valve as mentioned above.
More than the inclined to one side hard seal butterfly valve of a kind of change provided by the utility model is described in detail, used specific embodiment herein principle of the present utility model and mode of execution are set forth, above embodiment's explanation just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, part in specific embodiments and applications all can change.In sum, this description should not be construed as restriction of the present utility model.
Claims (3)
1. one kind becomes inclined to one side hard seal butterfly valve, comprises valve body, butterfly plate, and valve rod also comprises dish spring and valve rod control arm; It is characterized in that described butterfly plate is arranged in the described valve body by described valve rod, described valve rod passes transmission shaft bearing and the fixed bearing block that is fixed on the described butterfly plate, and links together with described butterfly plate; Described dish spring is fixedly installed on the described butterfly plate, and described valve rod control arm is connected with described valve handle activity.
2. the inclined to one side hard seal butterfly valve of change according to claim 1 is characterized in that, also comprises dish plate positioning seat, and described dish plate is connected with described dish plate positioning seat, and described dish spring is fixedly connected on described dish plate positioning seat by spring compressor and is connected.
3. the inclined to one side hard seal butterfly valve of change according to claim 1 and 2 is characterized in that described valve rod control arm is connected by taper pin with described valve rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020561941XU CN201836408U (en) | 2010-10-15 | 2010-10-15 | Variable offset hard sealing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020561941XU CN201836408U (en) | 2010-10-15 | 2010-10-15 | Variable offset hard sealing butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201836408U true CN201836408U (en) | 2011-05-18 |
Family
ID=44006511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020561941XU Expired - Fee Related CN201836408U (en) | 2010-10-15 | 2010-10-15 | Variable offset hard sealing butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201836408U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893103A (en) * | 2009-05-22 | 2010-11-24 | 吴树源 | Elastic limit eccentric shaft butterfly valve |
| CN110259964A (en) * | 2015-12-25 | 2019-09-20 | 爱三工业株式会社 | Eccentric valve |
-
2010
- 2010-10-15 CN CN201020561941XU patent/CN201836408U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893103A (en) * | 2009-05-22 | 2010-11-24 | 吴树源 | Elastic limit eccentric shaft butterfly valve |
| CN101893103B (en) * | 2009-05-22 | 2013-01-30 | 吴树源 | Elastic limit eccentric shaft butterfly valve |
| CN110259964A (en) * | 2015-12-25 | 2019-09-20 | 爱三工业株式会社 | Eccentric 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: 20110518 Termination date: 20161015 |