CN203948715U - A kind of local improvement type safety check - Google Patents
A kind of local improvement type safety check Download PDFInfo
- Publication number
- CN203948715U CN203948715U CN201420388748.9U CN201420388748U CN203948715U CN 203948715 U CN203948715 U CN 203948715U CN 201420388748 U CN201420388748 U CN 201420388748U CN 203948715 U CN203948715 U CN 203948715U
- Authority
- CN
- China
- Prior art keywords
- flap
- valve body
- valve
- rocking bar
- locating piece
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- Expired - Fee Related
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- Check Valves (AREA)
Abstract
A kind of local improvement type safety check, relate to a kind of safety check, valve gap passes through double-screw bolt, hexagon nut is connected with valve body, flap passes through bolt, nut is connected with rocking bar, bearing pin is through rocking bar, bearing pin two ends are arranged on valve body inner support face by screw and pad, described valve body inner support face is that valve body inner side is for the platform of fixed pin shaft supporting crank and flap, valve seat is arranged in valve body, corresponding with flap, and can fasten with flap, rocking bar end forms the locating piece upwards bending up, valve body is provided with the projection corresponding with locating piece, during valve opening, locating piece is directly located with projection collision.This non-return valve is simple in structure, during assembling, can regulate bearing pin, and flap is easy in valve channel center, and this structure is installed simple, and for ease of maintenaince, cost is lower.The mode that adopts rocking bar end locating piece and valve body projection location, has overcome the defect that in prior art, flap causes flap damage to be out of shape with valve body direct collision.
Description
Technical field
The utility model relates to a kind of safety check, and particularly a kind of local improvement type safety check, for stoping medium to flow backwards, is applicable to the industries such as petrochemical industry, bio-pharmaceuticals, mine metallurgy.
Background technique
Since China's reform and opening-up, national economy rapid growth, " scientific and technical innovation, autonomous innovation " become the main flow of domestic industry development.China's industry is just step by step to the future development of intensive style, energy-saving and emission-reduction, low-carbon (LC).Safety check claims again one-way valve or check valve, and its effect is to prevent that the medium in pipeline from flowing backwards.The flap of safety check is opened under pressure medium effect, and medium flows to outlet side from suction side.When suction side pressure is during lower than outlet side, flap automatically closes to prevent that medium from flowing backwards under the factor effects such as medium differential pressure, gravity own.Application number is 201120457294.2, and patentee is Yancheng Si Dade financial resources of the people valve Co., Ltd, and patent name is a kind of safety check, this patent valve gap lower end is connected flap by bearing pin with rocking bar, and its good sealing effect is easy to use, but, by valve gap, hang rocking bar flap, machining is more difficult, is difficult for assembling, and during valve opening, clash into flap and valve body location, makes the easy deformed damaged of flap, affects using effect.In order to address the above problem, the technician of R&D institution and enterprise is research and discovery constantly, wishes to overcome the defect that prior art exists, although make some progress technically, still exists the technical problem not yet overcoming in practice.
Summary of the invention
The purpose of this utility model is to overcome above deficiency, and a kind of local improvement type safety check is provided, and bearing pin is arranged on valve body inner support face, and by regulating bearing pin to control rocking bar and flap, it is simple in structure, and for ease of maintenaince, cost is lower.
The utility model solves the technological scheme that its technical problem adopts: contain valve body, valve seat, flap, rocking bar, bearing pin, valve gap, projection, locating piece, screw, pad, valve gap passes through double-screw bolt, hexagon nut is connected with valve body, flap passes through bolt, nut is connected with rocking bar, bearing pin is through rocking bar, bearing pin two ends are arranged on valve body inner support face by screw and pad, flap can rotate under the drive of rocking bar centered by bearing pin, described valve body inner support face is that valve body inner side is for the platform of fixed pin shaft supporting crank and flap, valve seat is arranged in valve body, corresponding with flap, and can fasten with flap, rocking bar end forms the locating piece upwards bending up, valve body is provided with the projection corresponding with locating piece, during valve opening, locating piece is directly located with projection collision.
The utility model solves the know-why that its technical problem adopts: safety check, as a kind of conventional self-acting valve, is used for preventing that pipeline medium from flowing backwards, and open-shut device is opened voluntarily or closes by the strength of flowing medium.When suction side pressure is during lower than outlet side, flap automatically closes to prevent that medium from flowing backwards under the factor effects such as medium differential pressure and gravity own.Rocking bar is connected with valve body by bearing pin, simple in structure, easy operating, and flap is connected with rocking bar by bolt, nut, reaches and revolves the object opening.Check valve design has lifting bolt, convenient lifting.Rocking bar end adopts locating piece and projection collision to cause its deformed damaged to prevent flap and valve body direct collision.When media flow, the active force of medium promote flap centered by bearing pin to valve body one sideway swivel, valve open, when the flowing velocity of medium increases or reduces, flap will regulate angle of swing automatically, when medium stops flowing, flap resets, valve closing.
The beneficial effects of the utility model are: this non-return valve is simple in structure, during assembling, can regulate bearing pin, and flap is easy in valve channel center, and this structure is installed simple, and for ease of maintenaince, cost is lower.The mode that adopts rocking bar end locating piece and valve body projection location, has overcome the defect that in prior art, flap causes flap damage to be out of shape with valve body direct collision.
Accompanying drawing explanation
In conjunction with the accompanying drawings and embodiments the utility model to be further described below.
Fig. 1 is a kind of local improvement type check valve structure schematic diagram.
Fig. 2 is that a kind of local improvement type safety check A is to schematic diagram.
In the drawings, 1. valve body, 2. valve seat, 3. flap, 4. rocking bar, 5. bearing pin, 6. valve gap, 7. projection, 8. locating piece, 9. screw, 10. pad.
Embodiment
At Fig. 1, in 2, valve gap 6 passes through double-screw bolt, hexagon nut is connected with valve body 1, flap 3 passes through bolt, nut is connected with rocking bar 4, bearing pin 5 is through rocking bar 4, bearing pin 5 two ends are arranged on valve body 1 inner support face by screw 9 and pad 10, flap 3 can rotate under the drive of rocking bar 4 centered by bearing pin 5, described valve body 1 inner support face is that valve body 1 inner side is for the platform of fixed pin shaft 5 supporting crank 4 and flap 3, valve seat 2 is arranged in valve body 1, corresponding with flap 3, and can fasten with flap 3, rocking bar 4 ends form the locating piece 8 upwards bending up, valve body 1 is provided with the projection corresponding with locating piece 87, during valve opening, locating piece 8 is directly located with projection 7 collisions.
Safety check, as a kind of conventional self-acting valve, is used for preventing that pipeline medium from flowing backwards, and open-shut device is opened voluntarily or closes by the strength of flowing medium.When suction side pressure is during lower than outlet side, flap 3 automatically closes to prevent that medium from flowing backwards under the factor effects such as medium differential pressure and gravity own.Rocking bar 4 is connected with valve body 1 by bearing pin 5, simple in structure, easy operating, and flap 3 is connected with rocking bar 4 by bolt, nut, reaches and revolves the object opening.Check valve design has lifting bolt, convenient lifting.Rocking bar 4 ends adopt locating piece 8 and projection 7 to collide to prevent that flap 3 from causing its deformed damaged with valve body 1 direct collision.When media flow, the active force of medium promote flap 3 centered by bearing pin 5 to valve body 1 one sideway swivels, valve open, when the flowing velocity of medium increases or reduces, flap 3 will regulate angle of swing automatically, when medium stops flowing, flap 3 resets, valve closing.
Claims (1)
1. a local improvement type safety check, contain valve body, valve seat, flap, rocking bar, bearing pin, valve gap, projection, locating piece, screw, pad, it is characterized in that: valve gap passes through double-screw bolt, hexagon nut is connected with valve body, flap passes through bolt, nut is connected with rocking bar, bearing pin is through rocking bar, bearing pin two ends are arranged on valve body inner support face by screw and pad, flap can rotate under the drive of rocking bar centered by bearing pin, described valve body inner support face is that valve body inner side is for the platform of fixed pin shaft supporting crank and flap, valve seat is arranged in valve body, corresponding with flap, and can fasten with flap, rocking bar end forms the locating piece upwards bending up, valve body is provided with the projection corresponding with locating piece, during valve opening, locating piece is directly located with projection collision.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420388748.9U CN203948715U (en) | 2014-07-15 | 2014-07-15 | A kind of local improvement type safety check |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420388748.9U CN203948715U (en) | 2014-07-15 | 2014-07-15 | A kind of local improvement type safety check |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203948715U true CN203948715U (en) | 2014-11-19 |
Family
ID=51890752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420388748.9U Expired - Fee Related CN203948715U (en) | 2014-07-15 | 2014-07-15 | A kind of local improvement type safety check |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203948715U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107429852A (en) * | 2015-03-13 | 2017-12-01 | Ksb 股份公司 | The technique of compact swing check valve body of the production with the weight mitigated |
-
2014
- 2014-07-15 CN CN201420388748.9U patent/CN203948715U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107429852A (en) * | 2015-03-13 | 2017-12-01 | Ksb 股份公司 | The technique of compact swing check valve body of the production with the weight mitigated |
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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: 20141119 Termination date: 20190715 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |