CN211779200U - One-way check valve for pipeline - Google Patents
One-way check valve for pipeline Download PDFInfo
- Publication number
- CN211779200U CN211779200U CN202020135734.1U CN202020135734U CN211779200U CN 211779200 U CN211779200 U CN 211779200U CN 202020135734 U CN202020135734 U CN 202020135734U CN 211779200 U CN211779200 U CN 211779200U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- inlet
- valve core
- way check
- 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 - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 17
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 10
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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- Check Valves (AREA)
Abstract
The utility model relates to a pipeline one-way check valve, which comprises a valve body, wherein the upper part of the valve body is provided with an inlet, the side part of the valve body is provided with an outlet, and the inlet direction of the valve body is vertical to the outlet direction of the valve body; a valve core is arranged along the inlet in the valve body; the upper end and the lower end of the valve core are provided with sealing rings which are sealed with the inner wall of the valve body; the upper end of the valve core is connected with a valve rod, a limiting disc which is in sealing contact with the wall surface of the inlet is arranged on the valve rod, and a through hole is formed in the limiting disc; when the valve core moves downwards, the inlet channel is communicated with the outlet channel through the through hole; the lower extreme of case sets up the gag lever post, and the gag lever post slides and sets up in the spacing groove in the valve body, sets up the elastic component in the spacing groove for reduce pipeline nitrogen pressure protection outdoor chemical industry and bury ground big jar and personal safety, so prevent that liquid backward flow from producing powerful pressure, reduce the nitrogen pressure that the pump required when pay-off equally.
Description
Technical Field
The utility model relates to a check valve field, more specifically relates to a one-way check valve of pipeline.
Background
Because chemical electrolyte buries ground jar and delivers to the head tank under nitrogen pressure to the head tank pumping raw materials under the operation of pump, powerful pressure causes the hidden danger to pipeline and personal safety.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the pipeline one-way check valve is provided.
In order to overcome the technical problem, the utility model discloses a technical scheme be: a pipeline one-way check valve comprises a valve body, wherein an inlet is formed in the upper part of the valve body, an outlet is formed in the side part of the valve body, and the inlet direction of the valve body is vertical to the outlet direction of the valve body; a valve core is arranged along the inlet in the valve body; the upper end and the lower end of the valve core are provided with sealing rings which are sealed with the inner wall of the valve body; the upper end of the valve core is connected with a valve rod, a limiting disc which is in sealing contact with the wall surface of the inlet is arranged on the valve rod, and a through hole is formed in the limiting disc; when the valve core moves downwards, the inlet channel is communicated with the outlet channel through the through hole; the lower end of the valve core is provided with a limiting rod, the limiting rod is arranged in a limiting groove in the valve body in a sliding mode, an elastic piece is arranged in the limiting groove, and the valve core is in a sealing position in a natural state.
Furthermore, the elastic part is a spring, the upper end of the spring is fixedly connected with the limiting rod, and the lower end of the spring is fixedly arranged at the bottom of the limiting groove.
Further, the upper end of valve rod is connected with presses the clamp plate, presses the outside that the clamp plate is located the valve body.
Furthermore, a circulation space is formed between the valve core and the limiting disc at intervals, and the lower end of the through hole is communicated with the circulation space.
Further, the sealing ring is a rubber sealing ring.
Compared with the prior art, the utility model beneficial effect who has does: the utility model provides a protection device for reduce pipeline nitrogen pressure and protect outdoor chemical engineering big jar of burying ground and personal safety. The pressure-reducing device is arranged on a tank guide behind the pump, so that the liquid is prevented from flowing back to generate strong pressure, and the nitrogen pressure required by the pump during feeding is also reduced. The chemical buried large tank population and related instruments are well protected, and the normal use of equipment is not influenced. The medium is allowed to flow in one direction only, and the direction flow is prevented. Typically such valves are self-actuating, with the flap opening under the pressure of a fluid flowing in one direction; when the fluid flows in the opposite direction, the valve flap is combined by the fluid pressure and the self-weight of the valve flap to act on the valve seat, thereby cutting off the flow.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 10. a valve body; 11. an inlet; 12. an outlet; 20. a valve core; 21. a seal ring; 30. a limiting disc; 31. a through hole; 40. a limiting rod; 50. a limiting groove; 60. a spring; 70. and pressing the plate.
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 work belong to the protection scope of the present invention.
Examples
As shown in FIG. 1, the pipeline one-way check valve comprises a valve body 10, wherein an inlet 11 is arranged at the upper part of the valve body 10, an outlet 12 is arranged at the side part of the valve body, and the inlet direction of the valve body is vertical to the outlet direction of the valve body; a valve core 20 is arranged along the inlet in the valve body; the upper end and the lower end of the valve core 20 are both provided with sealing rings 21 which are sealed with the inner wall of the valve body; the upper end of the valve core is connected with a valve rod, a limiting disc 30 which is in sealing contact with the wall surface of the inlet is arranged on the valve rod, and a through hole 31 is formed in the limiting disc; when the valve core moves downwards, the inlet channel is communicated with the outlet channel through the through hole; the lower end of the valve core is provided with a limiting rod 40, the limiting rod is arranged in a limiting groove 50 in the valve body in a sliding mode, an elastic piece is arranged in the limiting groove, and the valve core is in a sealing position in a natural state.
Further, the elastic part is a spring 60, the upper end of the spring is fixedly connected with the limiting rod, and the lower end of the spring is fixedly arranged at the bottom of the limiting groove.
Further, the upper end of the valve rod is connected with a pressing plate 70, and the pressing plate 70 is located outside the valve body.
Furthermore, a circulation space is formed between the valve core and the limiting disc at intervals, and the lower end of the through hole is communicated with the circulation space.
Further, the sealing ring is a rubber sealing ring.
When the medium flows back from the outlet channel, the side part of the valve core is stressed, the valve core cannot move in the inlet direction, so that the backflow prevention effect is achieved, and the matching of the sealing ring and the limiting disc achieves the double sealing effect; when the medium pressure is not enough to move the valve core, the pressing plate can be pressed down from the outside to move the valve core, so that the operation is convenient, and the opening and closing of the check valve are conveniently controlled manually.
The above description has been made in detail only for the preferred embodiment of the present invention, but the present invention is not limited to the above embodiment, and various changes can be made without departing from the spirit of the present invention within the knowledge scope of those skilled in the art, and all such changes are intended to be encompassed by the present invention.
Claims (5)
1. A pipeline one-way check valve is characterized by comprising a valve body, wherein an inlet is formed in the upper part of the valve body, an outlet is formed in the side part of the valve body, and the inlet direction of the valve body is vertical to the outlet direction of the valve body; a valve core is arranged along the inlet in the valve body; the upper end and the lower end of the valve core are provided with sealing rings which are sealed with the inner wall of the valve body; the upper end of the valve core is connected with a valve rod, a limiting disc which is in sealing contact with the wall surface of the inlet is arranged on the valve rod, and a through hole is formed in the limiting disc; when the valve core moves downwards, the inlet channel is communicated with the outlet channel through the through hole; the lower end of the valve core is provided with a limiting rod, the limiting rod is arranged in a limiting groove in the valve body in a sliding mode, an elastic piece is arranged in the limiting groove, and the valve core is in a sealing position in a natural state.
2. The one-way check valve of claim 1, wherein the elastic member is a spring, an upper end of the spring is fixedly connected to the limiting rod, and a lower end of the spring is fixedly disposed at the bottom of the limiting groove.
3. The one-way check valve of claim 1, wherein a pressing plate is connected to an upper end of the valve stem, and the pressing plate is located outside the valve body.
4. The one-way check valve of claim 1, wherein a flow space is formed between the spool and the stopper disc at an interval, and a lower end of the through hole is communicated with the flow space.
5. The one-way check valve of claim 1, wherein the seal is a rubber seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020135734.1U CN211779200U (en) | 2020-01-21 | 2020-01-21 | One-way check valve for pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020135734.1U CN211779200U (en) | 2020-01-21 | 2020-01-21 | One-way check valve for pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211779200U true CN211779200U (en) | 2020-10-27 |
Family
ID=72903749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020135734.1U Expired - Fee Related CN211779200U (en) | 2020-01-21 | 2020-01-21 | One-way check valve for pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211779200U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114603764A (en) * | 2022-03-11 | 2022-06-10 | 河北振顺机械有限公司 | Processing equipment for producing rubber hammer |
-
2020
- 2020-01-21 CN CN202020135734.1U patent/CN211779200U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114603764A (en) * | 2022-03-11 | 2022-06-10 | 河北振顺机械有限公司 | Processing equipment for producing rubber hammer |
| CN114603764B (en) * | 2022-03-11 | 2024-06-04 | 深圳市建泰盛硅橡胶有限公司 | Processing equipment for producing rubber hammer |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201027 |