CN202561140U - Y-shaped DC (Direct Current) type pressure sealing stop check valve - Google Patents
Y-shaped DC (Direct Current) type pressure sealing stop check valve Download PDFInfo
- Publication number
- CN202561140U CN202561140U CN2012201964890U CN201220196489U CN202561140U CN 202561140 U CN202561140 U CN 202561140U CN 2012201964890 U CN2012201964890 U CN 2012201964890U CN 201220196489 U CN201220196489 U CN 201220196489U CN 202561140 U CN202561140 U CN 202561140U
- Authority
- CN
- China
- Prior art keywords
- valve body
- valve
- wiper seal
- pressure sealing
- direct current
- 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 - Lifetime
Links
Images
Landscapes
- Lift Valve (AREA)
Abstract
The utility model discloses a Y-shaped DC (Direct Current) type pressure sealing stop check valve, relating to a pressure sealing ring protection device. A valve clack (2) is arranged in a valve body (1); a bracket (5) is arranged at the upper part of the valve body (1); a pressure sealing ring (3) is arranged at the joint of the valve body (1) and the bracket (5); a protection ring (4) is arranged at the upper part of the pressure sealing ring (3); a bushing (8) is arranged inside the bracket (5); a valve rod (6) is arranged inside the bushing (8); and an outer circle matching surface between the bracket (5) and the bushing (8) and the inner circle matching surface between the valve rod (6) and the bushing (8) are welded and fixed with keys (7). The Y-shaped DC type pressure sealing stop check valve, disclosed by the utility model, has the advantages of adding service life of the valve clack sealing surface, protecting coaxility of the valve clack and the valve body, protecting against scratching due to repeated detachment of the pressure sealing ring and stability of a high-weight level anti-rotation device.
Description
Technical field:
The utility model relates to wiper seal circle protective gear, is specifically related to a kind of Y shape direct current type wiper seal screw down nonreturn valve.
Background technique:
At present, known high pound stage pressure sealing screw down nonreturn valve has valve body, flap, valve gap, valve rod, wiper seal circle, piezometer ring, four minutes rings, support, Packing seat, gland, pressing plate, double-screw bolt, nuts to be assembled.Because wiper seal circle cylindrical contacts with the valve body face, and is defective when pressure testing occurring, need dismantle repeatedly the wiper seal circle, causes seal ring with outer to pull easily.Flap the tangent line of flap occurs easily because point contacts.
The model utility content:
The purpose of the utility model provides a kind of Y shape direct current type wiper seal screw down nonreturn valve, the scuffing that the working life of its increase flap sealing surface, the alignment that guarantees flap and valve body, protection wiper seal circle are dismantled repeatedly and the stability of high pound grade anti-rotation device.
In order to solve the existing problem of background technique, the utility model is to adopt following technological scheme: it comprises valve body 1, flap 2, wiper seal circle 3, guard ring 4, support 5, valve rod 6, key 7 and lining 8; Described flap 2 is arranged in the valve body 1; Support 5 is arranged on the top of valve body 1; The joint of valve body 1 and support 5 is provided with wiper seal circle 3, and the top of wiper seal circle 3 is provided with guard ring 4, and lining 8 is arranged on the inside of support 5; Valve rod 6 is arranged on the inside of lining 8, and described support 5 is welded with key 7 with the cylindrical fitting surface of lining 8 and the interior round fitting surface of valve rod 6 and lining 8.
The cylindrical of described wiper seal circle 3 is 5 ° a conical surface body.Sealing matches with 5 ° the conical surface on the valve body 1.
Described flap 2 is set to arc surface with the contacting point of valve body 1.Arc surface intersects like this, tangent line can not occur on the flap sealing surface.
The inboard of described valve body 1 is provided with four guiding rib 1-1.Can guarantee the coaxality of valve body 1 and flap 2.
The utlity model has following beneficial effect: the scuffing that the working life of its increase flap sealing surface, the alignment that guarantees flap and valve body, protection wiper seal circle are dismantled repeatedly and the stability of high pound grade anti-rotation device.
Description of drawings:
Fig. 1 is the structural representation of the utility model,
Fig. 2 is the C-C sectional view of Fig. 1,
Fig. 3 is the D-D sectional view of Fig. 1,
Fig. 4 is the A portion enlarged view of Fig. 1,
Fig. 5 is the B portion enlarged view of Fig. 1.
Embodiment:
Referring to Fig. 1-2, this embodiment adopts following technological scheme: it comprises valve body 1, flap 2, wiper seal circle 3, guard ring 4, support 5, valve rod 6, key 7 and lining 8; Described flap 2 is arranged in the valve body 1; Support 5 is arranged on the top of valve body 1; The joint of valve body 1 and support 5 is provided with wiper seal circle 3, and the top of wiper seal circle 3 is provided with guard ring 4, and lining 8 is arranged on the inside of support 5; Valve rod 6 is arranged on the inside of lining 8, and described support 5 is welded with key 7 with the cylindrical fitting surface of lining 8 and the interior round fitting surface of valve rod 6 and lining 8.
Referring to Fig. 5, the cylindrical of described wiper seal circle 3 is 5 ° a conical surface body.Sealing matches with 5 ° the conical surface on the valve body 1.
Referring to Fig. 4, described flap 2 is set to arc surface with the contacting point of valve body 1.Arc surface intersects like this, tangent line can not occur on the flap sealing surface.
Referring to Fig. 3, the inboard of described valve body 1 is provided with four guiding rib 1-1.Can guarantee the coaxality of valve body 1 and flap 2.
The scuffing that the working life of this embodiment increase flap sealing surface, the alignment that guarantees flap and valve body, protection wiper seal circle are dismantled repeatedly and the stability of high pound grade anti-rotation device.
Claims (4)
1.Y shape direct current type wiper seal screw down nonreturn valve, it comprises valve body (1), flap (2), wiper seal circle (3), guard ring (4), support (5), valve rod (6), key (7) and lining (8); Described flap (2) is arranged in the valve body (1); Support (5) is arranged on the top of valve body (1); The joint of valve body (1) and support (5) is provided with wiper seal circle (3), and the top of wiper seal circle (3) is provided with guard ring (4), and lining (8) is arranged on the inside of support (5); Valve rod (6) is arranged on the inside of lining (8), it is characterized in that described support (5) and the cylindrical fitting surface of lining (8) and the interior round fitting surface of valve rod (6) and lining (8) are welded with key (7).
2. Y shape direct current type wiper seal screw down nonreturn valve according to claim 1, the cylindrical that it is characterized in that described wiper seal circle (3) is 5 ° a conical surface body.
3. Y shape direct current type wiper seal screw down nonreturn valve according to claim 1 is characterized in that the described flap (2) and the contacting point of valve body (1) are set to arc surface.
4. Y shape direct current type wiper seal screw down nonreturn valve according to claim 1 is characterized in that the inboard of described valve body (1) is provided with four guiding ribs (1-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201964890U CN202561140U (en) | 2012-05-04 | 2012-05-04 | Y-shaped DC (Direct Current) type pressure sealing stop check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201964890U CN202561140U (en) | 2012-05-04 | 2012-05-04 | Y-shaped DC (Direct Current) type pressure sealing stop check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202561140U true CN202561140U (en) | 2012-11-28 |
Family
ID=47210799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201964890U Expired - Lifetime CN202561140U (en) | 2012-05-04 | 2012-05-04 | Y-shaped DC (Direct Current) type pressure sealing stop check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202561140U (en) |
-
2012
- 2012-05-04 CN CN2012201964890U patent/CN202561140U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204164550U (en) | A kind of pipeline extension device of triple seal structure | |
| CN102313074B (en) | Automatic filling sealing structure for high-pressure valve | |
| CN204002674U (en) | A kind of metallic combination sealing shroud tube head | |
| CN202561140U (en) | Y-shaped DC (Direct Current) type pressure sealing stop check valve | |
| CN201187514Y (en) | Washer of seal bolt | |
| CN204312751U (en) | The valve seat combination structure of easy maintenance | |
| CN208764368U (en) | Upper-mounting type ball valve | |
| CN203757161U (en) | Packing box and valve connecting and sealing structure | |
| CN202040323U (en) | Oblique seal ring | |
| CN202501096U (en) | Positioning and sealing device for valve stem of valve | |
| CN201982689U (en) | Balanced type vacuum plunger globe valve | |
| CN202884177U (en) | Low-temperature stop valve with decompression hole | |
| CN204628555U (en) | Adopt the central mechanism of vulcanizing machine of graphite grazing | |
| CN103953611A (en) | Cylinder | |
| CN201982706U (en) | Balance type vacuum plunger valve | |
| CN205330615U (en) | Metal seal shale atmospheric pressure splits gas production well head | |
| CN204663868U (en) | A kind of profile control and water plugging pump adopting novel sealing structure | |
| CN203994603U (en) | A kind of tapering linear sealing combination unit containing secondary seal | |
| CN203421198U (en) | Gate valve | |
| CN204113716U (en) | A kind of mortar pump stuffing box seal structure | |
| CN202674344U (en) | A tapered sealing stop valve | |
| CN204692164U (en) | Sand suction pump seal ring | |
| CN202252085U (en) | Lining fluorine ball valve | |
| CN201401552Y (en) | Stuffing box for gate valve | |
| CN203051938U (en) | Ball valve pipe saddle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 224051 eleven groups of Xinmin village, Lake Ting new area, Jiangsu, Yancheng City Patentee after: Jiangsu Shengtai Valve Co. Ltd. Address before: 224051 eleven groups of Xinmin village, Lake Ting new area, Jiangsu, Yancheng City Patentee before: YANCHENG SNY VALVE CO., LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121128 |