CN204692595U - Industrial refrigeration right-angle type screw down nonreturn valve - Google Patents
Industrial refrigeration right-angle type screw down nonreturn valve Download PDFInfo
- Publication number
- CN204692595U CN204692595U CN201520355569.XU CN201520355569U CN204692595U CN 204692595 U CN204692595 U CN 204692595U CN 201520355569 U CN201520355569 U CN 201520355569U CN 204692595 U CN204692595 U CN 204692595U
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- CN
- China
- Prior art keywords
- valve
- screw down
- valve body
- endoporus
- down nonreturn
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- Expired - Fee Related
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Abstract
The utility model relates to valve technology field, especially a kind of industrial refrigeration right-angle type screw down nonreturn valve.A kind of industrial refrigeration right-angle type screw down nonreturn valve, comprise valve body, valve gap and valve rod, described valve body has the endoporus of T font, flap is equipped with in described endoporus, described flap is connected with valve rod by spring, valve stem casing is provided with outside valve rod, the top of described valve body is provided with pressure control cavity, the side of valve body is provided with a unicom pipeline from pressure control cavity bottom to endoporus sidewall, the top of described valve rod is connected with spanner, is provided with the indicator of this Stress control cavity pressure of display below described spanner.Screw down nonreturn valve of the present utility model is more laborsaving than common screw down nonreturn valve in closing process.After valve closing, the counterpressure Auxiliary valves flap seal of generation, sealing effect is better.
Description
Technical field
The utility model relates to valve technology field, especially a kind of industrial refrigeration right-angle type screw down nonreturn valve.
Background technique
Screw down nonreturn valve because of its structure simple, reliable in action, opens and closes rapidly, is widely used in boats and ships, oil, chemical industry and power station etc.Sealing force needed for high-pressure stop safety check is comparatively large, opens and closes moment large, is not easy to operation, makes it apply and be restricted.
Model utility content
The technical problems to be solved in the utility model is: based on the problems referred to above, provides a kind of industrial refrigeration right-angle type screw down nonreturn valve under elevated pressure conditions with good sealing and operating characteristics.
The utility model solves the technological scheme that its technical problem adopts: a kind of industrial refrigeration right-angle type screw down nonreturn valve, comprise valve body, valve gap and valve rod, described valve body has the endoporus of T font, flap is equipped with in described endoporus, described flap is connected with valve rod by spring, valve stem casing is provided with outside valve rod, the top of described valve body is provided with pressure control cavity, the side of valve body is provided with a unicom pipeline from pressure control cavity bottom to endoporus sidewall, the top of described valve rod is connected with spanner, the indicator of this Stress control cavity pressure of display is provided with below described spanner.
Further, the endoporus of described flap and valve body adopts Spielpassung.The endoporus of flap and valve body adopts Spielpassung, in flap inside, spring is housed, and make the non-return stable performance of valve, sealing surface is not easily damaged.
Further, between described valve stem casing and valve body, be provided with O RunddichtringO, between described valve stem casing and valve rod, be provided with two O RunddichtringOs.
The beneficial effects of the utility model are: screw down nonreturn valve of the present utility model is more laborsaving than common screw down nonreturn valve in closing process.After valve closing, the counterpressure Auxiliary valves flap seal of generation, sealing effect is better.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model.
In figure: 1. valve body, 2. valve gap, 3. valve rod, 4. endoporus, 5. flap, 6. spring, 7. valve stem casing, 8. pressure control cavity, 9. unicom pipeline, 10. spanner, 11. indicators.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
As shown in Figure 1, a kind of industrial refrigeration right-angle type screw down nonreturn valve, comprise valve body 1, valve gap 2 and valve rod 3, valve body 1 has the endoporus 4 of T font, flap 5 is equipped with in endoporus 4, flap 5 is connected with valve rod 3 by spring 6, valve stem casing 7 is provided with outside valve rod 3, the top of valve body 1 is provided with pressure control cavity 8, the side of valve body 1 is provided with a unicom pipeline 9 from pressure control cavity 8 bottom to endoporus 4 sidewall, the top of valve rod 3 is connected with spanner 10, is provided with the indicator 11 of this pressure control cavity 8 pressure of display below spanner 10.
The present embodiment increases a pressure control cavity 8 on common cut-off non-return valve body top, and communicate with valve body 1 inlet channel through unicom pipeline 9.During closedown, because flowing medium enters pressure control cavity 8, mineralization pressure, is delivered to flap 5 top by valve rod 3, overcomes flowing medium to the active force bottom flap 5, makes the active force that valve rod 3 need are less, just can reach sealing.Due to the active force that the spring 6 taking full advantage of its inlet pressure and flap 5 top produces, thus make closedown and the labor-saving opening of valve body 1, operate steadily, sealing is reliable, and working life extends.
Further, flap 5 adopts Spielpassung with the endoporus of valve body 1.
Further, between valve stem casing 7 and valve body 1, be provided with O RunddichtringO, between valve stem casing 7 and valve rod 3, be provided with two O RunddichtringOs.Sealing between valve stem casing 7 and valve body 1 adopts O RunddichtringO, arranges a notch-cut type back-up ring at its compression-side.Sealing between valve stem casing 7 and valve rod 1 arranges two O RunddichtringOs, also arranges a notch-cut type back-up ring in its pressurized side, to prevent medium to valve gap place seepage, guarantees sealing effect.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this model utility technological thought, can carry out various change and amendment completely.The technical scope of this model utility is not limited to the content on specification, must determine its technical scope according to right.
Claims (3)
1. an industrial refrigeration right-angle type screw down nonreturn valve, comprise valve body (1), valve gap (2) and valve rod (3), it is characterized in that: described valve body (1) has the endoporus (4) of T font, flap (5) is equipped with in described endoporus (4), described flap (5) is connected with valve rod (3) by spring (6), valve stem casing (7) is provided with outside valve rod (3), the top of described valve body (1) is provided with pressure control cavity (8), the side of valve body (1) is provided with a unicom pipeline (9) from pressure control cavity (8) bottom to endoporus (4) sidewall, the top of described valve rod (1) is connected with spanner (10), described spanner (10) below is provided with the indicator (11) of display this pressure control cavity (8) pressure.
2. industrial refrigeration right-angle type screw down nonreturn valve according to claim 1, is characterized in that: described flap (5) adopts Spielpassung with the endoporus of valve body (1).
3. industrial refrigeration right-angle type screw down nonreturn valve according to claim 1, it is characterized in that: between described valve stem casing (7) and valve body (1), be provided with O RunddichtringO, between described valve stem casing (7) and valve rod (3), be provided with two O RunddichtringOs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520355569.XU CN204692595U (en) | 2015-05-28 | 2015-05-28 | Industrial refrigeration right-angle type screw down nonreturn valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520355569.XU CN204692595U (en) | 2015-05-28 | 2015-05-28 | Industrial refrigeration right-angle type screw down nonreturn valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204692595U true CN204692595U (en) | 2015-10-07 |
Family
ID=54232893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520355569.XU Expired - Fee Related CN204692595U (en) | 2015-05-28 | 2015-05-28 | Industrial refrigeration right-angle type screw down nonreturn valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204692595U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104976392A (en) * | 2015-06-04 | 2015-10-14 | 许炎章 | Right-angled type stop check valve for industrial refrigeration |
| CN106051171A (en) * | 2016-06-08 | 2016-10-26 | 中国船舶重工集团公司第七二五研究所 | Pressure self-balanced type stop check valve |
| CN110081189A (en) * | 2019-05-15 | 2019-08-02 | 李琼 | A kind of two-way three-eccentric-butterfly-valve |
| CN110081190A (en) * | 2019-05-15 | 2019-08-02 | 徐国华 | A kind of bidirectional sealed butterfly valve |
-
2015
- 2015-05-28 CN CN201520355569.XU patent/CN204692595U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104976392A (en) * | 2015-06-04 | 2015-10-14 | 许炎章 | Right-angled type stop check valve for industrial refrigeration |
| CN106051171A (en) * | 2016-06-08 | 2016-10-26 | 中国船舶重工集团公司第七二五研究所 | Pressure self-balanced type stop check valve |
| CN110081189A (en) * | 2019-05-15 | 2019-08-02 | 李琼 | A kind of two-way three-eccentric-butterfly-valve |
| CN110081190A (en) * | 2019-05-15 | 2019-08-02 | 徐国华 | A kind of bidirectional sealed butterfly valve |
| CN110081190B (en) * | 2019-05-15 | 2021-04-30 | 上海沪工阀门厂(集团)有限公司 | Bidirectional sealing 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: 20151007 Termination date: 20160528 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |