CN210566267U - Stop valve with bivalve lamella structure - Google Patents
Stop valve with bivalve lamella structure Download PDFInfo
- Publication number
- CN210566267U CN210566267U CN201920985090.2U CN201920985090U CN210566267U CN 210566267 U CN210566267 U CN 210566267U CN 201920985090 U CN201920985090 U CN 201920985090U CN 210566267 U CN210566267 U CN 210566267U
- Authority
- CN
- China
- Prior art keywords
- valve
- clack
- valve clack
- hole
- pressure release
- 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.)
- Active
Links
Images
Abstract
The utility model relates to a stop valve with bivalve lamella structure, including driving hand wheel, the valve rod, the valve gap, a valve body, valve clack and disk seat, still include supplementary valve clack and valve clack lid, be equipped with the shaft hole on the valve clack, be equipped with the side pressure release hole that runs through the lateral wall and run through the perpendicular pressure release hole of diapire on the lateral wall in shaft hole, valve clack lid is established on the shaft hole, the valve rod passes the valve clack lid and stretches into in the shaft hole, be equipped with the connecting hole on the supplementary valve clack, the opening part of connecting hole is equipped with spacing step, the valve rod top is equipped with the annular groove, the annular groove highly is greater than the thickness of spacing step, realize being connected of valve. When the valve is opened, because the auxiliary valve clack is less, it is less to receive medium pressure, and the valve rod can drive the auxiliary valve clack earlier and rise to open oblique pressure release hole and erect the pressure release hole, reach the purpose of pressure release, open the valve clack after the pressure release again, thereby can be more light open the valve.
Description
Technical Field
The utility model relates to the technical field of valves, concretely relates to stop valve with bivalve lamella structure.
Background
At present, the throttling stop valve is widely applied to pipelines of petrochemicals and the like, and has throttling and cutting functions on the pipelines. The throttling stop valve is composed of a driving hand wheel, a valve rod, a valve cover, a valve body, a valve clack and a valve seat, wherein the valve clack and the valve seat are positioned in the valve body, the valve cover is fixed on the valve body, the valve rod is arranged on the valve cover in a penetrating way, the inner end of the valve rod extends into the valve body and is fixed with the valve clack, the driving hand wheel is arranged on the outer end of the valve rod, and the inner end of the valve rod forms sealing fit with the valve clack
When the shutoff valve is connected to a pipeline with high medium pressure, in order to avoid internal leakage (medium flows from left to right as shown in fig. 1, the medium pressure below the valve flap is higher than the medium pressure above the valve flap, and the connection mode can make the valve not close tightly enough, namely internal leakage), the right end of the shutoff valve is used as a medium inlet, namely, the medium flows from right to left as shown by an arrow in fig. 1. Although the medium can be prevented from leaking in the connection mode, the medium pressure is too high, great effort needs to be provided when the valve is opened, and the valve is opened very hard.
SUMMERY OF THE UTILITY MODEL
To the not enough in the background art, the utility model provides a stop valve with bivalve lamella structure.
The utility model adopts the technical proposal that: a stop valve with a double-valve-clack structure comprises a driving hand wheel, a valve rod, a valve cover, a valve body, a valve clack and a valve seat, wherein one end of the valve rod is fixedly connected with the driving hand wheel, the other end of the valve rod penetrates through the valve cover and the valve body and extends into a valve cavity of the valve body, the stop valve further comprises an auxiliary valve clack and a valve clack cover, a shaft hole is formed in the valve clack, a side pressure relief hole penetrating through a side wall and a vertical pressure relief hole penetrating through a bottom wall are formed in the side wall of the shaft hole, the valve clack cover is arranged on the shaft hole, the valve rod penetrates through the valve clack cover and extends into the shaft hole, a connecting hole is formed in the auxiliary valve clack, a limiting step is arranged at the opening of the connecting hole, an annular groove is formed in the top of the valve rod, the height of the annular groove is larger, the bottom wall of the annular groove at the other end is abutted.
Furthermore, the bottom of the shaft hole is provided with a raised auxiliary valve seat, and the bottom wall of the auxiliary valve clack is provided with an O-shaped sealing ring.
Further, "O" type sealing washer include with supplementary valve clack be connected dovetail connection portion and with tail connection portion integrated into one piece's sealing portion, be equipped with on the diapire of supplementary valve clack with dovetail connection portion assorted dovetail.
Further, a bearing is arranged between the valve rod and the top of the valve cover, and a bearing sealing cover is arranged at the upper end of the bearing.
The utility model has the advantages that: the utility model discloses when the valve was opened, because supplementary valve clack is less, received medium pressure less, the valve rod can drive supplementary valve clack earlier and rise to open oblique pressure release hole and erect the pressure release hole, reach the purpose of pressure release, open the valve clack after the pressure release again, thereby can be lighter open the valve.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
FIG. 2 is an enlarged view of the point A in FIG. 1
Fig. 3 is an enlarged view of fig. 2 at B.
In the figure: 1. driving a hand wheel; 2. a valve stem; 3. a valve cover; 4. a valve body; 5. a valve flap; 6. a valve seat; 7. an auxiliary valve flap; 8. a valve flap cover; 9. a shaft hole; 10. a side pressure relief hole; 11. a vertical pressure relief hole; 12. connecting holes; 13. a limiting step; 14. an annular groove; 15. a buffer spring; 16. an auxiliary valve seat; 17. an O-shaped sealing ring; 18. a dovetail connection; 19. a sealing part; 20. a dovetail groove; 21. a bearing; 22. and (6) sealing the bearing.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a stop valve with bivalve lamella structure.
In this embodiment, referring to fig. 1 to 3, the stop valve with a double-valve-flap structure includes a driving hand wheel 1, a valve rod 2, a valve cover 3, a valve body 4, a valve flap 5 and a valve seat 6, wherein one end of the valve rod is fixedly connected with the driving hand wheel, the other end of the valve rod penetrates through the valve cover and the valve body and extends into a valve cavity of the valve body, the stop valve further includes an auxiliary valve flap 7 and a valve flap cover 8, the valve flap 5 is provided with a shaft hole 9, a side pressure release hole 10 penetrating through a side wall and a vertical pressure release hole 11 penetrating through a bottom wall are formed in a side wall of the shaft hole 9, the valve flap cover 8 is arranged on the shaft hole 9, the valve rod penetrates through the valve flap cover 8 and extends into the shaft hole, the auxiliary valve flap 7 is provided with a connecting hole 12, a limit step 13 is arranged at an opening of the connecting hole 12, an annular groove 14 is formed in the top of the, the valve rod extending into the connecting hole 12 is sleeved with a buffer spring 15, one end of the buffer spring 15 is abutted against the limiting step, and the bottom wall of the annular groove at the other end is abutted against.
The utility model discloses when the valve was opened, because supplementary valve clack is less, received medium pressure less, the valve rod can drive supplementary valve clack earlier and rise to open oblique pressure release hole and erect the pressure release hole, reach the purpose of pressure release, open the valve clack after the pressure release again, thereby can be lighter open the valve. Wherein annular groove highly is greater than the structure of the thickness of spacing step for leave clearance from top to bottom between the lateral wall of spacing step and annular groove, the buffer spring of rethread suit, certain elasticity can be given to the spring when opening, opens more easily, and in addition, buffer spring also can play the cushioning effect, noise when reducing the valve switching.
A raised auxiliary valve seat 16 is arranged at the bottom of the shaft hole 9, and an O-shaped sealing ring 17 is arranged on the bottom wall of the auxiliary valve clack 7; the O-shaped sealing ring 17 comprises a dovetail connection part 18 connected with the auxiliary valve clack and a sealing part 19 integrally formed with the dovetail connection part, and a dovetail groove 20 matched with the dovetail connection part is arranged on the bottom wall of the auxiliary valve clack 7. The O-shaped sealing ring is abutted to the auxiliary valve seat, the sealing performance between the auxiliary valve clack and the auxiliary valve seat is improved, the dovetail connecting portion is clamped in the dovetail groove, connection is more stable, and the sealing stability of the valve is improved.
A bearing 21 is arranged between the valve rod and the top of the valve cover, and a bearing sealing cover 22 is arranged at the upper end of the bearing 21. In large-scale stop valve, because water pressure is great, including the friction between valve rod and the valve gap, the stop valve is opened comparatively difficultly, through setting up after the bearing, can reduce the resistance between valve rod and the valve gap, and the valve of being convenient for is opened.
The utility model discloses when the valve was opened, because supplementary valve clack is less, received medium pressure less, the valve rod can drive supplementary valve clack earlier and rise to open oblique pressure release hole and erect the pressure release hole, reach the purpose of pressure release, open the valve clack after the pressure release again, thereby can be lighter open the valve.
The skilled person should understand that: although the present invention has been described in terms of the above embodiments, the inventive concepts are not limited to the embodiments, and any modifications that utilize the inventive concepts are intended to be included within the scope of the appended claims.
Claims (4)
1. The utility model provides a stop valve with bivalve lamella structure, includes drive hand wheel, valve rod, valve gap, valve body, valve clack and disk seat, valve rod one end link firmly with the drive hand wheel, the other end passes valve gap and valve body and stretches into the valve intracavity of valve body, its characterized in that: still include supplementary valve clack and valve clack lid, the valve clack on be equipped with the shaft hole, be equipped with the side pressure release hole that runs through the lateral wall and the perpendicular pressure release hole that runs through the diapire on the lateral wall in shaft hole, valve clack lid establish on the shaft hole, the valve rod passes the valve clack lid and stretches into in the shaft hole, supplementary valve clack on be equipped with the connecting hole, the opening part of connecting hole is equipped with spacing step, the valve rod top is equipped with the annular groove, annular groove's the thickness that highly is greater than spacing step, spacing step card is gone into to realize being connected of valve rod and supplementary valve clack in the annular groove, and the cover has buffer spring on stretching into the valve rod of connecting hole, buffer spring one end offsets with spacing.
2. The shut-off valve having a double-flap structure according to claim 1, wherein: the bottom of the shaft hole is provided with a raised auxiliary valve seat, and the bottom wall of the auxiliary valve clack is provided with an O-shaped sealing ring.
3. The shut-off valve having a double-flap structure according to claim 2, wherein: the O-shaped sealing ring comprises a dovetail connecting part connected with the auxiliary valve clack and a sealing part integrally formed with the dovetail connecting part, and a dovetail groove matched with the dovetail connecting part is formed in the bottom wall of the auxiliary valve clack.
4. A stop valve having a double-flap structure according to any one of claims 1 to 3, wherein: a bearing is arranged between the valve rod and the top of the valve cover, and a bearing sealing cover is arranged at the upper end of the bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920985090.2U CN210566267U (en) | 2019-06-27 | 2019-06-27 | Stop valve with bivalve lamella structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920985090.2U CN210566267U (en) | 2019-06-27 | 2019-06-27 | Stop valve with bivalve lamella structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210566267U true CN210566267U (en) | 2020-05-19 |
Family
ID=70626768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920985090.2U Active CN210566267U (en) | 2019-06-27 | 2019-06-27 | Stop valve with bivalve lamella structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210566267U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111765253A (en) * | 2020-06-16 | 2020-10-13 | 河南陶恩机械有限公司 | Corrugated pipe stop valve with double-valve-clack structure |
-
2019
- 2019-06-27 CN CN201920985090.2U patent/CN210566267U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111765253A (en) * | 2020-06-16 | 2020-10-13 | 河南陶恩机械有限公司 | Corrugated pipe stop valve with double-valve-clack structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0520933Y2 (en) | ||
| EP1927800A3 (en) | Gas valve with resilient seat | |
| CN210566267U (en) | Stop valve with bivalve lamella structure | |
| CN105351573B (en) | Self sealss swing type soft-sealing check valve | |
| CN204717065U (en) | Swing check valve | |
| CN210566269U (en) | Corrugated pipe stop valve | |
| CN210423843U (en) | Anti-rotation axial flow check valve | |
| CN201028044Y (en) | Regulation type ball valve seat | |
| US20090151799A1 (en) | Check valve | |
| CN212775744U (en) | Leakage-proof one-way valve | |
| CN212004365U (en) | Small-caliber upper-mounted low-temperature floating ball valve | |
| CN210770459U (en) | Through-flow check valve with double guide shafts | |
| JP4833133B2 (en) | Check valve | |
| CN210196563U (en) | Eccentric micro-pressure loss check valve | |
| CN210566336U (en) | Stop valve with guiding mechanism | |
| CN205350461U (en) | Air reservoir structure slowly opens and slowly closes amortization check valve | |
| CN210566268U (en) | Corrugated pipe stop valve with guide mechanism | |
| CN211202908U (en) | Valve plate for ball valve | |
| CN108662220B (en) | Safety valve with redundant back pressure balancing device | |
| CN217539807U (en) | Solenoid valve and diaphragm assembly thereof | |
| CN205689785U (en) | A kind of pressure balance type low moment of torsion flat gate valve | |
| CN204878884U (en) | Butt clamp swing check valve | |
| CN208871105U (en) | The check valve of integrated cage type protection structure | |
| CN210637550U (en) | Low-pressure full-open check valve | |
| CN210566270U (en) | Stop valve with stop pad structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |