CN205745471U - Built-in rocking arm swing check valve - Google Patents
Built-in rocking arm swing check valve Download PDFInfo
- Publication number
- CN205745471U CN205745471U CN201620719688.3U CN201620719688U CN205745471U CN 205745471 U CN205745471 U CN 205745471U CN 201620719688 U CN201620719688 U CN 201620719688U CN 205745471 U CN205745471 U CN 205745471U
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- rocking bar
- valve
- valve seat
- bar frame
- valve body
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Abstract
This utility model relates to a kind of built-in rocking arm swing check valve, including valve body, valve seat, flap, valve gap, rocking bar, rocking bar frame, flap is arranged on one end of rocking bar by hex nut, the rocking bar other end is connected on rocking bar frame by bearing pin, valve body is integrated forging and forms, and uses self sealing structure between valve gap and valve body lumen；Mainly rocking bar frame is fixedly connected on valve seat upper surface, and valve seat and flap connect into an independent sealing pair assembly by rocking bar and rocking bar frame, and valve seat inlet end face seal weld is connected in valve body intake channel.Its valve seat and flap connect into an independent sealing pair assembly by rocking bar and rocking bar frame, one loads in valve body, can ensure to have when cooperating between sealing surface of seat and valve clack sealing surface higher concentricity, good seal performance, easy for installation, low cost of manufacture, production efficiency height.
Description
Technical field
This utility model relates to valve field, especially with regard to a kind of swing check valve.
Background technology
Swing check valve is also known as check valve or non-return valve, and its effect is to prevent the medium in pipeline from flowing backwards.Swing type is only
Return valve mean level to install in the duct.Swing check valve exceptionally fills rocking arm swing type structure and built-in rocking arm swing type structure
Two kinds, all opening and closing elements of built-in rocking arm swing type structure valve are all loaded on valve inner, do not penetrate through valve body, except middle flange portion
Outside position gasket seal and sealing ring, entirety does not has outer leak source.Therefore, domestic existing forging high-pressure swing check valve, main valve
Use built-in rocking arm swing type structure.Built-in rocking arm swing check valve also has two kinds of structures, and one is in valve body lumen solid welding
Determining block and be used for hanging rocking bar and the rocking bar frame of swing check valve, another kind is to arrange gripper shoe for hanging rotation at valve body lumen
Open formula check-valves rocking bar and compress by pendant collet.But, the swing check valve of both structures is when assembling, and valve seat is first fixed
Being installed in valve channel, rocking bar need to be fixedly installed in the pin-and-hole on rocking bar frame by intracavity bearing pin in valve body, the position of pin-and-hole
Put it is difficult to ensure that the concentricity that cooperates of valve clack sealing surface and sealing surface of seat, cause both sealing surfaces skews, reduce and seal
Performance.In order to make valve clack sealing surface have preferable concentricity with sealing surface of seat when coordinating, the pin-and-hole position of rocking bar frame is at dress
Timing generally requires repeatedly does over again, and causes the artificial and waste of material, installs trouble, increase manufacturing cost, reduces production efficiency.
Summary of the invention
This utility model is the shortcoming existed for prior art, it is provided that a kind of good seal performance, easy for installation, be manufactured into
The built-in rocking arm swing check valve that this is low, production efficiency is high.
The technical solution of the utility model includes valve body, valve seat, flap, valve gap, rocking bar, rocking bar frame, and flap is by hexagonal spiral shell
Mother is arranged on one end of rocking bar, and the rocking bar other end is connected on rocking bar frame by bearing pin, and valve body is integrated forging and forms, valve gap and valve
Self sealing structure is used between body lumen；Mainly rocking bar frame is fixedly connected on valve seat upper surface, and valve seat and flap pass through rocking bar
Connecting into an independent sealing pair assembly with rocking bar frame, valve seat inlet end face seal weld is connected in valve body intake channel.
Preferably, valve seat upper surface is shaped with mounting plane, arranges two screws in this mounting plane, and rocking bar frame is by interior
Hex screw is fixedly mounted on two screws of valve seat upper surface.
Preferably, rocking bar frame uses with valve seat and is integrally cast.
The utility model has the advantages that valve seat and flap connect into an independent sealing pair group by rocking bar and rocking bar frame
Part, after this sealing pair assembly is mounted to modular assembly outside valve body, one loads in valve body, it is ensured that sealing surface of seat and valve
There is when cooperating between flap seal face higher concentricity, good seal performance, easy for installation, low cost of manufacture, production effect
Rate is high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model
Fig. 2 is the structural representation of sealing pair assembly in this utility model Fig. 1.
Detailed description of the invention
Built-in rocking arm swing check valve as shown in Figure 1, including valve body 1, valve seat 2, flap 3, valve gap 9, rocking bar 5, shakes
Bridge 6, flap 3 is arranged on one end of rocking bar 5 by hex nut 4, and rocking bar 5 other end is connected on rocking bar frame 6 by bearing pin 7, pin
Axle 7 is dynamic with the pin-and-hole of rocking bar frame 6 to be coordinated, and valve body 1 is integrated forging and forms, and has high voltage performance, valve gap 9 and valve body 1 lumen
Between use self sealing structure, this self sealing structure is made up of sealing ring, divided ring, gland and bolt, pressure medium promote valve
Covering 9 wedging sealing rings to seal with valve body 1, pressure more high sealing performance is the best；Rocking bar frame 6 is fixedly connected on valve seat 2 upper surface, valve
Seat 2 connects into an independent sealing pair assembly with flap 3 by rocking bar 5 and rocking bar frame 6, and valve seat 2 inlet end face seals welding
In valve body 1 intake channel, make flap 3 and valve seat 2 install outside valve body 1, debug after the most integrally molded at valve body 1 passage
In, improving the concentricity that coordinates between flap 3 sealing surface and valve seat 2 sealing surface, improve the sealing property of sealing pair, minimizing is done over again
Number of times, reduces waste of material, improves production efficiency.
Valve seat 2 upper surface is shaped with mounting plane, arranges two screws in this mounting plane, and rocking bar frame 6 is by interior hexagonal
Screw 8 is fixedly mounted on two screws of valve seat 2 upper surface.
Rocking bar frame 6 can also use with valve seat 2 and be integrally cast.
Claims (3)
1. a built-in rocking arm swing check valve, including valve body (1), valve seat (2), flap (3), valve gap (9), rocking bar (5), shakes
Bridge (6), flap (3) is arranged on one end of rocking bar (5) by hex nut (4), and rocking bar (5) other end is connected to by bearing pin (7)
On rocking bar frame (6), valve body (1) is integrated forging and forms, and uses self sealing structure between valve gap (9) and valve body (1) lumen；It is special
Levying is that rocking bar frame (6) is fixedly connected on valve seat (2) upper surface, and valve seat (2) is connected by rocking bar (5) and rocking bar frame (6) with flap (3)
Being connected into an independent sealing pair assembly, valve seat (2) inlet end face seal weld is connected in valve body (1) intake channel.
Built-in rocking arm swing check valve the most according to claim 1, is characterized in that valve seat (2) upper surface is shaped with installation flat
Face, arranges two screws in this mounting plane, and rocking bar frame (6) is fixedly mounted on valve seat (2) upper end by soket head cap screw (8)
On two screws in face.
Built-in rocking arm swing check valve the most according to claim 1, is characterized in that rocking bar frame (6) uses with valve seat (2)
It is integrally cast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620719688.3U CN205745471U (en) | 2016-06-23 | 2016-06-23 | Built-in rocking arm swing check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620719688.3U CN205745471U (en) | 2016-06-23 | 2016-06-23 | Built-in rocking arm swing check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205745471U true CN205745471U (en) | 2016-11-30 |
Family
ID=57377696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620719688.3U Active CN205745471U (en) | 2016-06-23 | 2016-06-23 | Built-in rocking arm swing check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205745471U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107202184A (en) * | 2017-07-13 | 2017-09-26 | 辽宁飞鸿达蒸汽节能设备有限公司 | Check-valves is opened in piston type rotation |
| CN109723870A (en) * | 2019-03-04 | 2019-05-07 | 浙江欧科阀门有限公司 | A kind of Novel swing check valve |
-
2016
- 2016-06-23 CN CN201620719688.3U patent/CN205745471U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107202184A (en) * | 2017-07-13 | 2017-09-26 | 辽宁飞鸿达蒸汽节能设备有限公司 | Check-valves is opened in piston type rotation |
| CN109723870A (en) * | 2019-03-04 | 2019-05-07 | 浙江欧科阀门有限公司 | A kind of Novel swing check valve |
| CN109723870B (en) * | 2019-03-04 | 2024-04-16 | 浙江欧科阀门有限公司 | Novel swing check valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |