CN219866438U - Check interference valve convenient to adjust and improve leakproofness - Google Patents
Check interference valve convenient to adjust and improve leakproofness Download PDFInfo
- Publication number
- CN219866438U CN219866438U CN202320499182.6U CN202320499182U CN219866438U CN 219866438 U CN219866438 U CN 219866438U CN 202320499182 U CN202320499182 U CN 202320499182U CN 219866438 U CN219866438 U CN 219866438U
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- sealing
- annular
- ejector rod
- valve
- mounting groove
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- 238000007789 sealing Methods 0.000 claims abstract description 99
- 238000009434 installation Methods 0.000 abstract description 3
- 230000002265 prevention Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Check Valves (AREA)
Abstract
The utility model discloses a check interference valve convenient for adjusting and improving tightness, which comprises a valve body, a check movable piece, a valve cap, a spring and a sealing gasket, wherein an annular mounting groove is formed at a corresponding abutting position of the valve body and the sealing gasket, an annular sealing abutting ring is arranged in the annular mounting groove, an adjusting jacking screw hole is formed in the valve body and communicated with the annular mounting groove, a threaded ejector rod is connected in the adjusting jacking screw hole, and a jacking inclined plane is formed at the end part of the threaded ejector rod; the threaded ejector rod carries out pushing movement on the annular sealing abutting ring through the end pushing inclined plane, so that the annular sealing abutting ring moves in the annular mounting groove, and the sealing abutting state is maintained between the end of the annular sealing abutting ring and the sealing gasket. The utility model forms three propping seals between the sealing gasket and the sealing gasket during initial installation, and can push the annular sealing propping ring through the threaded ejector rod after frequent automatic opening and closing, deformation and sinking of the sealing gasket and elasticity reduction of the spring in later period, thereby effectively improving and improving the sealing performance of the interference valve for automatically stopping and preventing backflow.
Description
Technical Field
The utility model relates to the technical field of interference valves, in particular to a check interference valve convenient to adjust and improve tightness.
Background
The interference valve has the functions of automatic check and backflow prevention, is matched with the ball valve to be used, improves the safety of water, and when no water flow pressure exists, the interference valve acts on the sealing movable piece by the elastic force of the spring, so that the sealing gasket on the sealing movable piece seals and blocks the channel on the valve body, thereby realizing the functions of automatic check and backflow prevention.
However, the interference valve is realized by the fact that the elastic force of the spring is needed to be propped against the valve body when the automatic check and backflow prevention functions are realized, on one hand, the elastic force of the spring is weakened along with frequent opening and closing elastic force, and on the other hand, the sealing gasket on the sealing movable part is sealed and restored for many times under the elastic force of the spring, and the propping part of the sealing gasket and the valve body channel is deformed; the two reasons cause that the automatic non-return and backflow-preventing tightness is weakened along with the frequent opening and closing of the interference valve, and the service life is low, the existing technology is that the interference valve is detached from the connecting pipeline, and the spring and the sealing gasket in the interference valve are replaced, but the normal use is affected due to the trouble; there is therefore a need for improvement in the use of this aspect.
Disclosure of Invention
The present utility model aims to solve the problems set forth in the background art and provide a check interference valve which is convenient to adjust and improve tightness.
In order to achieve the above purpose, the technical scheme of the utility model is as follows: the check interference valve comprises a valve body, a check moving part, a valve cap, a spring and a sealing gasket, wherein an annular mounting groove is formed in a corresponding abutting part of the valve body and the sealing gasket, an annular sealing abutting ring is arranged in the annular mounting groove, an adjusting jacking screw hole is formed in the valve body and is communicated with the annular mounting groove, a threaded ejector rod is connected in the adjusting jacking screw hole, and a jacking inclined plane capable of abutting against the end part of the annular sealing abutting ring is arranged at the end part of the threaded ejector rod; the threaded ejector rod rotates to push and move the annular sealing abutting ring through the end part pushing inclined plane, so that the annular sealing abutting ring moves in the annular mounting groove, and the sealing abutting state is maintained between the end part of the annular sealing abutting ring and the sealing gasket.
In the above-mentioned non-return interference valve convenient to adjust and improve leakproofness, when the annular seal is supported and is held up in the beginning, its one end supports with the roof pressure inclined plane of screw thread ejector pin and is held up, and the other end just forms sealed the butt with the sealing pad, and sealing pad and annular seal are held up and are held up the ring tip and form three butt sealings between the valve body terminal surface of annular mounting groove both sides at this moment.
In the above-mentioned non-return interference valve which is convenient for adjusting and improving the tightness, a plurality of sealing rings are arranged between the annular sealing abutting ring and the inner side and the outer side of the annular mounting groove.
In the above-described check interference valve which facilitates adjustment and improves the sealing property, both end portions of the annular seal abutment ring are hemispherical.
In the above-mentioned non-return interference valve with convenient adjustment and improvement of tightness, the threaded ejector rod comprises a threaded connecting rod portion and an ejector rod portion, and the ejector inclined surface is arranged on the ejector rod portion.
In the check interference valve convenient to adjust and improve tightness, the threaded ejector rod is provided with the screwing sealing ring.
In the check interference valve convenient for adjusting and improving tightness, the end part of the threaded ejector rod is provided with the screwing groove.
By adopting the technical scheme, the utility model has the following beneficial effects:
the annular sealing abutting ring is arranged at the beginning of installation, so that three abutting seals are formed between the sealing gasket and the end parts of the annular sealing abutting ring and between the sealing gasket and the end surfaces of the valve body at the two sides of the annular installation groove, and the tightness of the automatic check and backflow prevention of the interference valve is effectively improved; after frequent automatic opening and closing, deformation and sinking of the sealing gasket and elastic reduction of the spring in the later stage, the annular sealing abutting ring can be pushed by the threaded ejector rod, so that the sealing property of automatic check and backflow prevention of the sealing gasket is effectively improved, the interference valve is not required to be removed or replaced, and the service life of each component of the interference valve is effectively prolonged.
Drawings
FIG. 1 is a cross-sectional structural view of the present utility model;
fig. 2 is an enlarged view of a portion a in fig. 1.
Detailed Description
The utility model will be further elucidated with reference to the drawings.
Referring to fig. 1 and 2, the utility model provides a check interference valve convenient for adjusting and improving tightness, which comprises a valve body 1, a check moving part 2, a valve cap 3, a spring 4 and a sealing gasket 5, wherein an annular mounting groove 6 is arranged at the corresponding abutting position of the valve body 1 and the sealing gasket 5, an annular sealing abutting ring 7 is arranged in the annular mounting groove 6, an adjusting jacking screw hole 8 is arranged on the valve body 1, the adjusting jacking screw hole 8 is communicated with the annular mounting groove 6, a threaded ejector rod 9 is connected in the adjusting jacking screw hole 8, the end part of the threaded ejector rod 9 is provided with a jacking inclined surface 10 which can abut against the end part of the annular sealing abutting ring 7, the threaded ejector rod 9 comprises a threaded connecting rod part 12 and a jacking rod part 13, and the jacking inclined surface 10 is arranged on the jacking rod part 13; the threaded ejector rod 9 rotates to push and move the annular sealing abutting ring 7 through the end pushing inclined plane 10, so that the annular sealing abutting ring 7 moves in the annular mounting groove 6, the end of the annular sealing abutting ring and the sealing gasket 5 keep a sealing abutting state, and a screwing groove 15 is formed in the end of the threaded ejector rod 9 for facilitating screwing.
When the annular sealing abutting ring 7 is initially assembled, one end of the annular sealing abutting ring abuts against the pressing inclined surface 10 of the threaded ejector rod 9, the other end of the annular sealing abutting ring just abuts against the sealing gasket 5, and at the moment, three abutting seals are formed between the sealing gasket 5 and the end parts of the annular sealing abutting ring 7 and the end surfaces of the valve body 1 at two sides of the annular mounting groove 6; after the later-period frequent automatic opening and closing, the deformation and the sinking of the sealing gasket and the elastic reduction of the spring are carried out, at the moment, the screw ejector rod is screwed and the screw ejector rod is continuously immersed into the adjusting ejection screw hole 8, the ejection inclined surface 10 at the end part of the screw ejector rod 9 pushes the annular sealing abutting ring 7, so that the annular sealing abutting ring 7 approaches to the direction of the sealing gasket 5 to abut, two conditions possibly occur after adjustment, namely, only the annular sealing abutting ring 7 keeps abutting sealing with the sealing gasket 5, but three abutting sealing is formed between the sealing gasket 5 and the end part of the annular sealing abutting ring 7 and the end surfaces of the valve body 1 at the two sides of the annular mounting groove 6 along with the use, and three abutting sealing is formed between the sealing gasket 5 and the end part of the annular sealing abutting ring 7 and the end surfaces of the valve body 1 at the two sides of the annular mounting groove 6; regardless of the adjustment. At the moment, the sealing performance of the sealing gasket in the interference valve for automatic check and backflow prevention is effectively improved, the interference valve is not required to be removed and replaced, the operation is very convenient,
further, in order to better ensure the tightness of structural design connection, a plurality of sealing rings 11 are arranged between the annular sealing abutting ring 7 and the inner side and the outer side of the annular mounting groove 6, and a screwing sealing ring 14 is arranged on the threaded ejector rod 9.
Furthermore, the two ends of the annular sealing propping ring 7 are hemispheric, the hemispheric design at one end is used for better propping sliding with the propping inclined plane 10 to reduce friction, and the hemispheric design at the other end can be used for sealing a tangential point with the sealing gasket 5 to better ensure propping sealing performance.
The foregoing has outlined a detailed description of a check valve for facilitating adjustment and improvement of tightness, and the principles and embodiments of the present utility model have been described with particular reference to the examples which are provided herein to assist in understanding the disclosed embodiments; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present utility model, the present description should not be construed as limiting the present utility model in view of the above.
Claims (7)
1. The utility model provides a check interference valve convenient to adjust and improve leakproofness, includes valve body (1), check moving part (2), valve bonnet (3), spring (4), sealed pad (5), its characterized in that: an annular mounting groove (6) is formed in the corresponding propping position of the valve body (1) and the sealing gasket (5), an annular sealing propping ring (7) is arranged in the annular mounting groove (6), an adjusting propping screw hole (8) is formed in the valve body (1), the adjusting propping screw hole (8) is communicated with the annular mounting groove (6), a threaded ejector rod (9) is connected in the adjusting propping screw hole (8), and a propping inclined surface (10) capable of propping against the end part of the annular sealing propping ring (7) is arranged at the end part of the threaded ejector rod (9); the threaded ejector rod (9) can rotate to push and move the annular sealing abutting ring (7) through the end pushing inclined plane (10), so that the annular sealing abutting ring (7) moves in the annular mounting groove (6) and keeps a sealing abutting state between the end of the annular sealing abutting ring and the sealing gasket (5).
2. A non-return interference valve for facilitating adjustment and improving tightness as defined in claim 1, wherein: when the annular sealing abutting ring (7) is initially assembled, one end of the annular sealing abutting ring abuts against a pressing inclined surface (10) of the threaded ejector rod (9), the other end of the annular sealing abutting ring just abuts against the sealing gasket (5), and at the moment, three abutting seals are formed between the sealing gasket (5) and the end parts of the annular sealing abutting ring (7) and the end faces of the valve body (1) on two sides of the annular mounting groove (6).
3. A non-return interference valve for facilitating adjustment and improving tightness according to claim 1 or 2, characterized in that: a plurality of sealing rings (11) are arranged between the annular sealing abutting ring (7) and the inner side and the outer side of the annular mounting groove (6).
4. A non-return interference valve for facilitating adjustment and improving tightness according to claim 1 or 2, characterized in that: the two ends of the annular sealing abutting ring (7) are hemispherical.
5. A non-return interference valve for facilitating adjustment and improving tightness according to claim 1 or 2, characterized in that: the threaded ejector rod (9) comprises a threaded connecting rod part (12) and a pressing rod part (13), and the pressing inclined surface (10) is arranged on the pressing rod part (13).
6. A non-return interference valve for facilitating adjustment and improving tightness as defined in claim 5, wherein: the threaded ejector rod (9) is provided with a screwing sealing ring (14).
7. A non-return interference valve for facilitating adjustment and improving tightness as defined in claim 5, wherein: the end part of the threaded ejector rod (9) is provided with a screwing groove (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320499182.6U CN219866438U (en) | 2023-03-15 | 2023-03-15 | Check interference valve convenient to adjust and improve leakproofness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320499182.6U CN219866438U (en) | 2023-03-15 | 2023-03-15 | Check interference valve convenient to adjust and improve leakproofness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219866438U true CN219866438U (en) | 2023-10-20 |
Family
ID=88317420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320499182.6U Active CN219866438U (en) | 2023-03-15 | 2023-03-15 | Check interference valve convenient to adjust and improve leakproofness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219866438U (en) |
-
2023
- 2023-03-15 CN CN202320499182.6U patent/CN219866438U/en active Active
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