CN210196566U - Check valve capable of being connected with SAE flange and joint and sealed by conical surface - Google Patents
Check valve capable of being connected with SAE flange and joint and sealed by conical surface Download PDFInfo
- Publication number
- CN210196566U CN210196566U CN201921170007.2U CN201921170007U CN210196566U CN 210196566 U CN210196566 U CN 210196566U CN 201921170007 U CN201921170007 U CN 201921170007U CN 210196566 U CN210196566 U CN 210196566U
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- Prior art keywords
- valve
- sealing
- check valve
- sealed
- sealing ring
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- Expired - Fee Related
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- 238000007789 sealing Methods 0.000 claims abstract description 59
- 230000002708 enhancing effect Effects 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of valves, in particular to a check valve which can be connected with an SAE flange and a connector and sealed by a conical surface, comprising a valve body and a valve cover, wherein the valve cover is provided with a valve rod, the valve rod is provided with a baffle plate, and a spring is arranged between the valve cover and the baffle plate; the baffle is provided with a sealing mechanism for enhancing air tightness; the sealing mechanism comprises a first sealing ring, the first sealing ring is arranged on the baffle plate, and the first sealing ring is of a conical structure; the sealing mechanism further comprises a fixing assembly for fixing the first sealing ring on the baffle plate. This can be with SAE flange and articulate, the sealed check valve of conical surface is sealed through the conical surface of first sealing washer, and is sealed effectual, has solved wafer chuck formula check valve rod and valve body among the prior art and has adopted hard sealing, does not have the sealing washer, and the not good problem of gas tightness has reduced the overall dimension of this check valve, can make things convenient for the pipeline to keep warm with SAE flange and articulate.
Description
Technical Field
The utility model relates to the technical field of valves, specifically can with SAE flange and articulate, the sealed check valve of conical surface.
Background
SAE flange: ISO6162-1 and ISO 6162-2 standard flanges, SAE joint: ISO6162-1 and ISO 6162-2 standard connectors.
Fig. 1-2 show a wafer check valve in the prior art, in which a valve cover 2 is disposed on a valve body 1, a valve rod 4 is disposed on the valve cover 2, a baffle plate 14 is connected to an end of the valve rod 4, a spring 8 is disposed between the baffle plate 14 and the valve cover 2, and the spring 8 is sleeved on the valve rod 4. The automatic opening and closing is realized by the matching of the force generated by the self-flowing of the medium in the pipeline and the spring 8, and the aim of preventing the fluid from flowing backwards is fulfilled.
The valve rod 4 and the valve body 1 of the wafer check valve in the prior art are hard sealed, no sealing ring is used, and the air tightness is poor. In view of the above problem, the utility model provides a can with SAE flange and articulate, the sealed check valve of conical surface.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a can with SAE flange and articulate, the sealed check valve of conical surface to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the check valve capable of being connected with the SAE flange and the joint and sealed by the conical surface comprises a valve body and a valve cover, wherein a valve rod is arranged on the valve cover, a baffle plate is arranged on the valve rod, and a spring is arranged between the valve cover and the baffle plate;
the baffle is provided with a sealing mechanism for enhancing air tightness; can strengthen the gas tightness through sealing mechanism, solve wafer-type check valve rod and valve body among the prior art and adopt hard seal, do not have the sealing washer, the not good problem of gas tightness.
As a further aspect of the present invention: the sealing mechanism comprises a first sealing ring, the first sealing ring is arranged on the baffle plate, and the first sealing ring is of a conical structure;
the sealing mechanism further comprises a fixing assembly for fixing the first sealing ring on the baffle plate.
As a further aspect of the present invention: the fixing component comprises a nut and a pressing sleeve;
the nut is arranged on the valve rod in a threaded mode, the pressing sleeve is sleeved on the valve rod, and the pressing sleeve is located between the nut and the first sealing ring; through the screw-thread fit of nut and valve rod, rotate the nut, can make the nut remove on the valve rod, and then make the nut drive and press the cover and compress tightly first sealing washer, reach the purpose of fixed first sealing washer.
As a further aspect of the present invention: the internal surface of the valve body is provided with internal threads, the valve cover is provided with external threads matched with the internal threads, and the valve body is in threaded connection with the valve cover.
As a further aspect of the present invention: a rectangular ring is arranged between the valve body and the valve cover, and the sealing performance between the valve body and the valve cover is guaranteed.
Compared with the prior art, the beneficial effects of the utility model are that:
this can be with SAE flange and articulate, the sealed check valve of conical surface is sealed through the conical surface of first sealing washer, and is sealed effectual, has solved wafer chuck formula check valve rod and valve body among the prior art and has adopted hard sealing, does not have the sealing washer, the not good problem of gas tightness, has reduced the overall dimension of this check valve, can with SAE flange and articulate, make things convenient for the pipeline to keep warm, can with screw radial positioning, ensure its and SAE flange, SAE connects the axiality of and the steel pipe, and can keep for a long time.
Drawings
In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the drawings that are needed in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.
Fig. 1 is a front sectional view illustrating a structure of a wafer type check valve according to the related art.
Fig. 2 is a side view of a prior art wafer-type check valve.
Fig. 3 is a schematic front sectional view of the embodiment of the present invention.
Fig. 4 is a schematic side view of the embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a check valve, an SAE flange and an SAE joint according to an embodiment of the present invention.
Fig. 6 is a schematic side view of the check valve, SAE flange and SAE joint according to an embodiment of the present invention.
In the figure: 1-valve body, 2-valve cover, 3-rectangular ring, 4-valve rod, 5-first sealing ring, 6-pressing sleeve, 7-nut, 8-spring, 9-screw, 10-second sealing ring, 11-SAE flange, 12-SAE joint, 13-steel pipe and 14-baffle.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 3 to 6, in the embodiment of the present invention, the check valve capable of being connected to an SAE flange and a joint and sealed by a conical surface includes a valve body 1 and a valve cover 2, wherein a valve rod 4 is disposed on the valve cover 2, a baffle 14 is disposed on the valve rod 4, and a spring 8 is disposed between the valve cover 2 and the baffle 14;
a sealing mechanism for enhancing air tightness is arranged on the baffle plate 14; can strengthen the gas tightness through sealing mechanism, solve wafer-type check valve rod and valve body among the prior art and adopt hard seal, do not have the sealing washer, the not good problem of gas tightness.
Further, the sealing mechanism comprises a first sealing ring 5, the first sealing ring 5 is arranged on the baffle 14, and the first sealing ring 5 is of a conical structure;
the sealing mechanism further comprises a fixing assembly for fixing the first sealing ring 5 to the baffle plate 14.
Specifically, the fixing component comprises a nut 7 and a pressing sleeve 6;
the nut 7 is arranged on the valve rod 4 in a threaded mode, the pressing sleeve 6 is sleeved on the valve rod 4, and the pressing sleeve 6 is located between the nut 7 and the first sealing ring 5; through the screw-thread fit of nut 7 and valve rod 4, rotate nut 7, can make nut 7 remove on valve rod 4, and then make nut 7 drive and press cover 6 to compress tightly first sealing washer 5, reach the purpose of fixed first sealing washer 5.
In another embodiment of the present invention, the inner surface of the valve body 1 is provided with an internal thread, the valve cover 2 is provided with an external thread matching with the internal thread, and the valve body 1 is connected with the valve cover 2 by a thread.
Furthermore, a rectangular ring 3 is arranged between the valve body 1 and the valve cover 2, so that the sealing performance between the valve body 1 and the valve cover 2 is ensured.
The embodiment of the utility model provides a theory of operation is: through the threaded fit of the nut 7 and the valve rod 4, the nut 7 can be moved on the valve rod 4 by rotating the nut 7, so that the nut 7 drives the pressing sleeve 6 to press the first sealing ring 5, and the purpose of fixing the first sealing ring 5 is achieved; the conical surface through the first sealing ring 5 is sealed, the sealing effect is good, the problems that a valve rod and a valve body of the wafer check valve in the prior art are hard sealed, no sealing ring exists and the air tightness is not good are solved, and the overall dimension of the check valve is reduced. When the check valve is used, the check valve is placed between two SAE flanges 11, a second sealing ring 10 is arranged between the end face of the check valve and the SAE flanges 11 to ensure sealing performance, the two SAE flanges 11 are fixedly connected through screws 9 to clamp the check valve in the middle, and the SAE flanges 11 are connected with a steel pipe 13 through an SAE joint 12, so that the problem that the appearance is large due to flat flange connection of the clamp type check valve in the prior art is solved, the check valve can be radially positioned with the screws 9, and the coaxiality of the check valve, the SAE flanges 11, the SAE joint 12 and the steel pipe 13 is guaranteed.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. The check valve capable of being connected with an SAE flange and a connector and sealed by a conical surface comprises a valve body (1) and a valve cover (2), and is characterized in that a valve rod (4) is arranged on the valve cover (2), a baffle (14) is arranged on the valve rod (4), and a spring (8) is arranged between the valve cover (2) and the baffle (14);
and a sealing mechanism for enhancing air tightness is arranged on the baffle plate (14).
2. The SAE flange and adapter connectable, bevel-sealing check valve according to claim 1, characterized in that the sealing means comprise a first sealing ring (5), the first sealing ring (5) being arranged on the baffle plate (14), the first sealing ring (5) being of a conical configuration;
the sealing mechanism further comprises a fixing assembly for fixing the first sealing ring (5) on the baffle plate (14).
3. The SAE flange and adapter connectable, bevel-sealing check valve according to claim 2, characterized in that the fixing assembly comprises a nut (7) and a pressure sleeve (6);
the nut (7) is arranged on the valve rod (4) in a threaded mode, the pressing sleeve (6) is sleeved on the valve rod (4), and the pressing sleeve (6) is located between the nut (7) and the first sealing ring (5).
4. A cone-sealed check valve connectable to SAE flanges and joints according to any of claims 1-3, characterized in that the inner surface of the valve body (1) is provided with internal threads, the valve cover (2) is provided with external threads matching the internal threads, and the valve body (1) is in threaded connection with the valve cover (2).
5. A SAE flange and joint connectable, cone-sealed non-return valve according to claim 4, characterized in that a rectangular ring (3) is provided between the valve body (1) and the valve cover (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921170007.2U CN210196566U (en) | 2019-07-26 | 2019-07-26 | Check valve capable of being connected with SAE flange and joint and sealed by conical surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921170007.2U CN210196566U (en) | 2019-07-26 | 2019-07-26 | Check valve capable of being connected with SAE flange and joint and sealed by conical surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210196566U true CN210196566U (en) | 2020-03-27 |
Family
ID=69868347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921170007.2U Expired - Fee Related CN210196566U (en) | 2019-07-26 | 2019-07-26 | Check valve capable of being connected with SAE flange and joint and sealed by conical surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210196566U (en) |
-
2019
- 2019-07-26 CN CN201921170007.2U patent/CN210196566U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200327 |