CN215806533U - Check valve with good air tightness - Google Patents
Check valve with good air tightness Download PDFInfo
- Publication number
- CN215806533U CN215806533U CN202122311049.7U CN202122311049U CN215806533U CN 215806533 U CN215806533 U CN 215806533U CN 202122311049 U CN202122311049 U CN 202122311049U CN 215806533 U CN215806533 U CN 215806533U
- Authority
- CN
- China
- Prior art keywords
- valve body
- sealing ring
- sealing
- flange plate
- air tightness
- 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.)
- Active
Links
Images
Landscapes
- Check Valves (AREA)
Abstract
The utility model relates to the technical field of check valves, in particular to a check valve with good air tightness, which solves the defect of poor air tightness and comprises a flange plate, wherein the inside of the flange plate is connected with a valve body through threads, a connecting hole is formed in the valve body, a sealing ring is connected to the inside of the connecting hole in a sliding manner, a moving block is fixedly connected to the inside of the sealing ring, a sealing block is fixedly connected to the lower end of the moving block, and a mounting hole is formed in the flange plate. According to the utility model, the sealing ring, the sealing block and other structures are additionally arranged on the valve body, so that gas can enter water through the valve body when the air pressure is too high in the process of using the valve body, the valve body can be effectively sealed by pushing the sealing block and the sealing ring to be tightly attached to the inner side of the valve body through water pressure after the air pressure is stable, the water is prevented from entering the gas, and the sealing property of the valve body can be improved.
Description
Technical Field
The utility model relates to the technical field of check valves, in particular to a check valve with good air tightness.
Background
The check valve is a valve with a round valve clack and acts by self weight and medium pressure to block medium backflow, belongs to the automatic valve class, and is also called a check valve, a one-way valve, a backflow valve or an isolation valve. Accordingly, there is a need for improvements in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defect of poor air tightness and provides a check valve with good air tightness.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the check valve with good air tightness comprises a flange plate, wherein a valve body is connected to the inside of the flange plate through threads, a connecting hole is formed in the valve body, a sealing ring is connected to the inside of the connecting hole in a sliding mode, a moving block is fixedly connected to the inside of the sealing ring, a sealing block is fixedly connected to the lower end of the moving block, and a mounting hole is formed in the flange plate.
Preferably, the number of the mounting holes is four, and the four mounting holes are uniformly distributed on the flange plate.
Preferably, the outer side of the valve body is fixedly connected with a sealing ring, and the sealing ring is in contact with the flange plate.
Preferably, a gap exists between the sealing block and the connecting hole.
Preferably, the moving block is shaped like a truncated cone.
Preferably, the lower end of the flange plate is provided with a bulge.
The utility model has the beneficial effects that:
according to the utility model, the sealing ring, the sealing block and other structures are additionally arranged on the valve body, so that gas can enter water through the valve body when the air pressure is too high in the process of using the valve body, the valve body can be effectively sealed by pushing the sealing block and the sealing ring to be tightly attached to the inner side of the valve body through water pressure after the air pressure is stable, the water is prevented from entering the gas, and the sealing property of the valve body can be improved.
Drawings
FIG. 1 is a schematic structural view of a check valve with good air tightness according to the present invention;
fig. 2 is a plan view of fig. 1 of a check valve with good airtightness according to the present invention.
In the figure: 1. a flange plate; 2. a valve body; 3. a sealing block; 4. a moving block; 5. a seal ring; 6. a seal ring; 7. mounting holes; 8. and connecting the holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-2, a check valve with good air tightness comprises a flange plate 1, wherein the flange plate 1 is internally connected with a valve body 2 through threads, the valve body 2 is internally provided with a connecting hole 8, the connecting hole 8 is internally connected with a sealing ring 5 in a sliding manner, the sealing ring 5 is internally fixedly connected with a moving block 4, the lower end of the moving block 4 is fixedly connected with a sealing block 3, and the flange plate 1 is provided with a mounting hole 7.
According to the utility model, by additionally arranging the sealing ring 5, the sealing ring 6, the sealing block 3 and other structures on the valve body 2, when the air pressure is overlarge in the process of using the valve body 2, the air can enter the water through the valve body 2, and after the air pressure is stable, the water pressure pushes the sealing block 3 and the sealing ring 5 to be tightly attached to the inner side of the valve body 2, so that the valve body 2 can be effectively sealed, the water is prevented from entering the air, and the sealing property of the valve body 2 can be improved.
The number of the mounting holes 7 is four, the four mounting holes 7 are uniformly distributed on the flange plate 1, and the flange plate 1 can be mounted through the mounting holes 7.
In this embodiment: when atmospheric pressure was too big, atmospheric pressure promoted movable block 4 and sealed piece 3 and moved down and make inside gas can enter into the liquid of below, the shape of movable block 4 is the round platform type, and the round platform type can make sealing washer 5 break away from valve body 2 when moving down, has the clearance between sealed piece 3 and the connecting hole 8, and the clearance can be through gas.
After atmospheric pressure is stable, atmospheric pressure reduces, and water pressure passes through the sealing washer 5 and the connecting hole 8 in the outside of pressure promotion sealed piece 3 and the movable block 4 of its upper end, can effectually avoid moisture to leak, leads to water to flow into 2 tops of valve body, can effectively promote the leakproofness of valve body 2.
Moreover, the outside fixedly connected with sealing ring 6 of valve body 2, sealing ring 6 and the contact of ring flange 1, sealing ring 6 can promote the leakproofness between valve body 2 and the ring flange 1, and the lower extreme of ring flange 1 is provided with the arch, and the arch can lie in the tube coupling and make the leakproofness of promotion and pipeline.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (6)
1. The check valve with good air tightness comprises a flange plate (1) and is characterized in that a valve body (2) is connected to the inside of the flange plate (1) through threads, a connecting hole (8) is formed in the valve body (2), a sealing ring (5) is connected to the inside of the connecting hole (8) in a sliding mode, a moving block (4) is fixedly connected to the inside of the sealing ring (5), a sealing block (3) is fixedly connected to the lower end of the moving block (4), and a mounting hole (7) is formed in the flange plate (1).
2. A non-return valve with good air tightness according to claim 1, characterized in that the number of the mounting holes (7) is four, and four mounting holes (7) are evenly distributed on the flange plate (1).
3. A non-return valve with good air tightness according to claim 1, characterized in that a sealing ring (6) is fixedly connected to the outer side of the valve body (2), and the sealing ring (6) is in contact with the flange (1).
4. A non-return valve with good gas tightness according to claim 1, characterized in that there is a gap between the sealing block (3) and the connection hole (8).
5. A non-return valve with good gas tightness according to claim 1, characterized in that the shape of the moving block (4) is a truncated cone.
6. A non-return valve with good air tightness according to claim 1, characterized in that the lower end of the flange (1) is provided with a bulge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122311049.7U CN215806533U (en) | 2021-09-24 | 2021-09-24 | Check valve with good air tightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122311049.7U CN215806533U (en) | 2021-09-24 | 2021-09-24 | Check valve with good air tightness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215806533U true CN215806533U (en) | 2022-02-11 |
Family
ID=80165971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122311049.7U Active CN215806533U (en) | 2021-09-24 | 2021-09-24 | Check valve with good air tightness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215806533U (en) |
-
2021
- 2021-09-24 CN CN202122311049.7U patent/CN215806533U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201330885Y (en) | Exhaust valve of water supply pipeline | |
| CN207753095U (en) | A kind of priming device | |
| CN215806533U (en) | Check valve with good air tightness | |
| CN102192332B (en) | Anti-siphon vacuum break valve | |
| CN101718343A (en) | Non-leakage reversible automatic exhaust valve | |
| CN201207009Y (en) | Rapid interface for airtightness experiment for pipes | |
| CN211952266U (en) | Anti-leakage coal gas drainer | |
| CN211289194U (en) | Plug type sealing device for replacing pipeline inlet and outlet maintenance valve | |
| CN108502400B (en) | Inspection hole structure of condensate water tank | |
| CN208417938U (en) | Sensor fixing structure in pipeline with pressure | |
| CN213145321U (en) | Vacuum cavity with high exhaust efficiency and high sealing performance | |
| CN201925521U (en) | Free exhaust valve | |
| CN206988072U (en) | Diesel motor exhaust handles the diaphragm assembly of urea pump | |
| CN212480219U (en) | Sanitary pneumatic diaphragm valve | |
| CN218625582U (en) | Double-flange single-port exhaust valve | |
| CN205301094U (en) | Suppress frock | |
| CN218953547U (en) | Sealing structure between pump body water inlet joint and pump body water outlet joint | |
| CN213332441U (en) | Pneumatic vacuum valve | |
| CN213598684U (en) | Anti-overflow air defense integral type device | |
| CN220890480U (en) | Anti-seepage pump cover structure | |
| CN216279568U (en) | Flat top formula check valve | |
| CN215795966U (en) | Vacuum chamber sealing structure | |
| CN210681788U (en) | Multi-port butt-jointed interlayer vacuum type low-temperature storage tank | |
| CN215568759U (en) | Clamping type anti-drop pneumatic connector | |
| CN220416488U (en) | Vacuum seal assembly and vacuum double-wall pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |