CN201083272Y - Auxiliary valve inner concealed butterfly valve - Google Patents
Auxiliary valve inner concealed butterfly valve Download PDFInfo
- Publication number
- CN201083272Y CN201083272Y CNU200720173460XU CN200720173460U CN201083272Y CN 201083272 Y CN201083272 Y CN 201083272Y CN U200720173460X U CNU200720173460X U CN U200720173460XU CN 200720173460 U CN200720173460 U CN 200720173460U CN 201083272 Y CN201083272 Y CN 201083272Y
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- China
- Prior art keywords
- valve plate
- valve
- assistant
- main valve
- utility
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- 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 provides a butterfly valve with a built-in assistant valve, which is capable of realizing slight adjustment with convenient assembly. The utility model comprises a valve body, a main valve plate and a main valve plate operating mechanism which are arranged in the valve body, wherein a through hole is arranged at the center of the main valve plate, an assistant valve plate is movably arranged inside the through hole, a sealing member is arranged between the main valve plate and the assistant valve plate, and the assistant valve plate is connected with an assistant valve plate operating mechanism. When the utility model is assembled, no by-pass valve is needed assembling, thereby saving labor and material and effectively shortening assembly construction period and having high efficiency. The utility model is used, the assistant valve plate is opened firstly to reduce the differential pressure between the two ends of the valve; then the main valve plate is opened when the differential pressure between the two ends of the valve is reduced to a certain degree, thereby effectively reducing the opening torque of the main valve plate, simultaneously avoiding the water hammer impact caused by direct opening of the main valve plate, and prolonging the service life of the valve. In addition, through adjusting the opening degree of the assistant valve plate, the medium flow rate can be adjusted slightly, thereby enabling the slight adjustment of the large-calibre butterfly valve.
Description
Technical field
The utility model relates to a kind of butterfly valve, and especially a kind of trace of can realizing is regulated, and assistant valve concealed type butterfly valve easy for installation.
Background technique
As shown in Figure 1, traditional butterfly valve structure generally includes valve body 1 and the valve plate 2 and the valve plate driving mechanism (not shown) that are rotatably installed in the valve body 1.During use, adjust driving mechanism valve plate 2 is rotated, play the effect of regulating flow and pressure.Under the situation that generally large-diameter butterfly valve or pressure are bigger, for reducing valve two ends pressure reduction, reduce to open moment of torsion, impact of water hammer causes damage when avoiding opening, and must add bypass valve 8 at the butterfly valve two ends.Will certainly increase human and material resources like this, increase workload, very inconvenience is installed, and installation period be long, efficient is low.
The model utility content
The technical problem that solves
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provides a kind of trace of can realizing to regulate, and assistant valve concealed type butterfly valve easy for installation.
Technological scheme
For achieving the above object, the utility model adopts following technological scheme:
Assistant valve concealed type butterfly valve described in the utility model comprises valve body and is installed in valve body interior main valve plate and main valve plate operating device.Wherein be provided with through hole, rotate in the through hole and be provided with auxiliary valve plate, be provided with Sealing between the major and minor valve plate, be connected with the auxiliary valve plate operating device on the described auxiliary valve plate at described main valve plate middle position.
Described main valve plate operating device comprises the tubulose main valve stem and the main valve plate driving head of fixedlying connected with the main valve plate, and described auxiliary valve plate operating device comprises the auxiliary valve rod and the auxiliary valve plate driving head of fixedlying connected with auxiliary valve plate, and described auxiliary valve rod is positioned at the tubulose main valve stem.
Beneficial effect
The advantage and the good effect of assistant valve concealed type butterfly valve described in the utility model are: in the utility model, owing in the main valve plate, also be provided with auxiliary valve plate,, save human and material resources on pipeline so bypass valve needn't be installed again, and effectively shorten installation period, the efficient height.The utility model is opened auxiliary valve plate in use earlier, to reduce the pressure reduction at valve two ends, after dropping to a certain degree, valve two ends pressure reduction opens the main valve plate again, can effectively reduce the unlatching moment of main valve plate like this, the impact of water hammer that causes in the time of simultaneously also can avoiding the main valve plate directly to open damages, and prolongs the working life of valve.
In addition,, can also adjust the flow of medium micro-ly, make the trace adjusting of large-diameter butterfly valve become possibility by adjusting the opening degree of auxiliary valve plate.
Description of drawings
Fig. 1 is the structural representation of traditional butterfly valve;
Fig. 2 is the structural representation of assistant valve concealed type butterfly valve of the present utility model;
Fig. 3 is the longitudinal section of Fig. 2;
Schematic representation when Fig. 4 represents that the major and minor valve plate in the assistant valve concealed type butterfly valve of the present utility model all is in closed condition;
Fig. 5 represents that the main valve plate in the assistant valve concealed type butterfly valve of the present utility model is a closed condition, the schematic representation when auxiliary valve plate is in semi-open state;
Fig. 6 represents that the main valve plate in the assistant valve concealed type butterfly valve of the present utility model is a closed condition, the schematic representation when auxiliary valve plate is in the complete opening state;
Fig. 7 represents that the main valve plate in the assistant valve concealed type butterfly valve of the present utility model is in semi-open state, the schematic representation when auxiliary valve plate is in the complete opening state;
Schematic representation when Fig. 8 represents that the major and minor valve plate in the assistant valve concealed type butterfly valve of the present utility model all is in opening state.
Embodiment
Following examples are used to illustrate the utility model, but are not used for limiting scope of the present utility model.
Referring to Fig. 2 and Fig. 3.Assistant valve concealed type butterfly valve of the present utility model comprises valve body 1 and the main valve plate 3 and the main valve plate operating device that are installed in the valve body 1.Be provided with through hole at main valve plate 3 middle positions, rotate in the through hole and be provided with auxiliary valve plate 4, be connected with auxiliary valve plate operating device 9 on the auxiliary valve plate 4.The through-hole wall of main valve plate 3 is provided with circular groove, is mounted with retaining ring 10 in the circular groove, is fixed with seal ring 11 on the retaining ring 10.Auxiliary valve plate 4 is sealed and matched with seal ring 11.Also can between major and minor valve plate, be provided with Sealing by other modes.
Main valve plate operating device in the utility model comprises the tubulose main valve stem 5 and the main valve plate driving head 7 of fixedlying connected with main valve plate 3.The auxiliary valve plate operating device comprises the auxiliary valve rod 6 and the auxiliary valve plate driving head 9 of fixedlying connected with auxiliary valve plate 4.Auxiliary valve rod 6 is positioned at tubulose main valve stem 5, is beneficial to the overall volume that reduces valve like this.
, when using assistant valve concealed type butterfly valve of the present utility model, adjust auxiliary valve plate driving head 9 earlier and open auxiliary valve plates 4, pressure release in advance to shown in Figure 8 as Fig. 4; After valve two ends pressure reduction drops to a certain degree, adjust main valve plate driving head 7 again and open main valve plate 3.Can effectively reduce the unlatching moment of main valve plate 3 like this, the impact of water hammer that causes in the time of also can avoiding the main valve plate directly to open simultaneously damages, and prolongs the working life of valve.
In the assistant valve concealed type butterfly valve of the present utility model,, made things convenient for use in the main valve plate by the structural design of auxiliary valve plate is set.And when mounted, bypass valve needn't be installed separately on pipeline, save human and material resources, and effectively shorten installation period, the efficient height.In addition, the utility model in use if main valve plate 3 is maintained static, is only adjusted the aperture of auxiliary valve plate 4 by auxiliary valve plate driving head 9, can realize the fine setting of flow, and this micro-regulatory function has realistic meanings in large-diameter butterfly valve.
More than be preferred forms of the present utility model, according to the disclosed content of the utility model, some identical, replacement schemes that those of ordinary skill in the art can expect apparently all should fall into the scope that the utility model is protected.
Claims (2)
1. assistant valve concealed type butterfly valve, comprise valve body (1) and be installed in valve body (1) interior main valve plate (3) and main valve plate operating device, it is characterized in that being provided with through hole at described main valve plate (3) middle position, rotate in the through hole and be provided with auxiliary valve plate (4), be provided with Sealing between the major and minor valve plate, described auxiliary valve plate is connected with the auxiliary valve plate operating device on (4).
2. assistant valve concealed type butterfly valve as claimed in claim 1, it is characterized in that described main valve plate operating device comprises the tubulose main valve stem (5) and the main valve plate driving head of fixedlying connected with main valve plate (3), described auxiliary valve plate operating device comprises the auxiliary valve rod (6) and the auxiliary valve plate driving head of fixedlying connected with auxiliary valve plate, and described auxiliary valve rod (6) is positioned at tubulose main valve stem (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720173460XU CN201083272Y (en) | 2007-09-29 | 2007-09-29 | Auxiliary valve inner concealed butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720173460XU CN201083272Y (en) | 2007-09-29 | 2007-09-29 | Auxiliary valve inner concealed butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201083272Y true CN201083272Y (en) | 2008-07-09 |
Family
ID=39625739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720173460XU Expired - Fee Related CN201083272Y (en) | 2007-09-29 | 2007-09-29 | Auxiliary valve inner concealed butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201083272Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022653A (en) * | 2019-11-18 | 2020-04-17 | 宁波奥克斯电气股份有限公司 | Electronic expansion valve, adjusting method and air conditioner |
-
2007
- 2007-09-29 CN CNU200720173460XU patent/CN201083272Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022653A (en) * | 2019-11-18 | 2020-04-17 | 宁波奥克斯电气股份有限公司 | Electronic expansion valve, adjusting method and air conditioner |
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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: 20080709 Termination date: 20150929 |
|
| EXPY | Termination of patent right or utility model |