CN221221504U - Groove type double-sealing ball valve - Google Patents
Groove type double-sealing ball valve Download PDFInfo
- Publication number
- CN221221504U CN221221504U CN202322962222.9U CN202322962222U CN221221504U CN 221221504 U CN221221504 U CN 221221504U CN 202322962222 U CN202322962222 U CN 202322962222U CN 221221504 U CN221221504 U CN 221221504U
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- Prior art keywords
- valve
- sealing ring
- sealing
- type double
- valve core
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- 238000007789 sealing Methods 0.000 title claims abstract description 125
- 230000006835 compression Effects 0.000 claims abstract description 4
- 238000007906 compression Methods 0.000 claims abstract description 4
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 230000008676 import Effects 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 11
- 230000001502 supplementing effect Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000002035 prolonged effect Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a groove type double-sealing ball valve which comprises a valve shell, a valve core, a first sealing ring and a second sealing ring, wherein a valve cavity is arranged in the valve shell; the second sealing ring comprises a hard sealing ring and a soft sealing ring which are mutually nested and matched, the strength and flexibility requirements of the sealing ring are met, the bottom of the second sealing ring is provided with a compression expansion device for supplementing interference to achieve a better sealing effect, and the valve core is provided with a handle for rotating the valve core.
Description
Technical Field
The utility model relates to a ball valve, in particular to a groove type double-seal ball valve.
Background
The two ends of the groove type valve are not provided with flanges, only the clamping grooves are arranged, when the groove type valve is connected with a groove type pipeline, the flange is not needed, and only the clamp is needed to be connected with the groove type pipeline, so that the valve is fast to assemble and disassemble and is commonly used in a fire scene; the ball valve is used as a main valve, has the advantages of small fluid resistance, rapid and convenient switching, complete full-opening or full-closing action as long as the valve rod rotates 90 degrees, easy realization of rapid opening and closing, good sealing performance of the valve seat and the like; but the sealing washer quality of ball valve directly influences the whole quality of ball valve, and traditional single sealing washer sealing effect is poor, has failed to satisfy the user demand, uses very inconveniently.
At present, the Chinese patent with the application number of CN201821058469.0 discloses a spring sealing ring for a ball valve, which comprises a first steel ring, a valve body sealing ring, a second steel ring, a valve core sealing ring and a spring, wherein the spring sealing ring for the ball valve is used for supplementing abrasion during use by pushing the design of the valve core sealing ring through the spring, so that the service life of the ball valve is prolonged; however, the design of the ball valve sealing ring still has the problems that the interference is insufficient, the sealing effect is poor when the valve body expands under the action of water pressure, the pressure at the inlet end pushes the valve core to shift rightwards to be tightly combined with the sealing ring, the contact force of the left sealing ring is reduced, and the left sealing ring is possibly leaked to the sealing surface of the valve body to cause corrosion of the sealing surface of the valve body.
Disclosure of utility model
Aiming at the defects existing in the prior art, the utility model aims to provide the groove type double-seal ball valve which has the effects of long service life, better sealing performance, more perfect sealing effect and stable structure when the valve shell is expanded under the water pressure.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a slot type double seal ball valve, includes valve casing, case, sealing washer, its characterized in that: a valve cavity is arranged in the valve shell, the valve core is arranged in the valve cavity, sealing gaskets are arranged at the medium inlets and the medium outlets of the two sides of the valve shell, which are close to the valve core, and a first sealing ring is arranged on the sealing gaskets; the valve cavity is internally provided with a valve casing bulge close to the medium inlet, the second sealing ring is arranged on the valve casing bulge and comprises a soft sealing ring and a hard sealing ring, and a compression expansion device is arranged at the bottom of the soft sealing ring and faces one side of the medium inlet.
Through adopting above-mentioned technical scheme, when opening and closing the valve, the valve core is pushed to the right skew by the inlet end pressure and sealing washer close combination, and the left side sealing washer contact force diminishes, and when taking place the seepage phenomenon, sets up the second sealing washer and protects sealed face not to receive the corruption of medium in the valve.
The utility model is further provided with: the soft sealing ring is provided with a plurality of soft sealing bosses, rib clamping grooves are formed below the soft sealing bosses, the hard sealing ring is provided with hard sealing bosses, grooves are formed in two adjacent pairs of the hard sealing bosses, ribs are arranged in the grooves formed transversely and can be matched with the rib clamping grooves, and the grooves formed longitudinally can be matched with the valve housing protrusions.
By adopting the technical scheme, the hard sealing ring is clamped on the valve casing, so that the positioning of the second sealing ring is realized; in the working process of the equipment, the soft sealing ring and the hard sealing ring are combined, so that the requirements of toughness and flexibility of the second sealing ring can be met, tearing is prevented, and the service life of the sealing ring is prolonged.
The utility model is further provided with: the valve core is a spherical shell with a hole in the middle, a handle is arranged right above the valve core, and the handle extends out of the valve housing and can rotate.
The utility model is further provided with: the valve core is provided with a hard coating.
By adopting the technical scheme, the hard coating is sprayed on the surface of the valve core, so that the valve core is protected by the hard coating, the impact of a flowing medium on the valve core is reduced, and the service life of the valve core is prolonged.
The utility model is further provided with: the compression expansion device comprises a sliding block and a clamping groove, wherein a limiting block is arranged on the clamping groove, the sliding block is arranged on the outer side of the clamping groove to be of a conical structure, and a sliding block protrusion is arranged on the sliding block.
Through adopting above-mentioned technical scheme, when the medium is gone into, the slider receives the water pressure effect and slides to the draw-in groove inboard, and the toper structure struts soft sealing washer, has replenished the interference volume of soft sealing washer, has solved the valve body and has received the problem that the interference volume is not enough sealed effect variation when high water pressure effect expands.
In summary, the utility model has the following beneficial effects:
1. By arranging the second sealing ring, when the valve is opened and closed, the pressure at the inlet end pushes the valve core to shift rightwards to be tightly combined with the sealing ring, so that the contact force of the left sealing ring is reduced, and the leakage phenomenon is easy to occur.
2. The hard sealing ring is clamped on the valve casing, so that the positioning of the second sealing ring is realized, the soft sealing ring and the hard sealing ring are combined in the working process of the equipment, the requirements of toughness and flexibility of the second sealing ring can be met, tearing is prevented, and the service life of the sealing ring is prolonged.
3. The self-nesting structure of the second sealing ring improves the stability of the structure, realizes the stability and stability of the ball valve, and the hard coating is sprayed on the surface of the valve core, so that the hard coating plays a role in protecting the valve core, reduces the direct impact of flowing media on the valve core, and prolongs the service life of the valve core.
4. The pressurized expansion device is additionally arranged on the soft sealing ring, so that the interference of the soft sealing ring is supplemented, and the problem that the sealing effect is poor due to insufficient interference when the valve body expands under the action of high water pressure is solved.
Drawings
FIG. 1 is a schematic diagram showing the structure of the present embodiment in perspective;
FIG. 2 is a schematic elevational cross-sectional view of the present embodiment;
FIG. 3 is a schematic cross-sectional view of a second seal ring according to the present embodiment;
FIG. 4 is a schematic view of the valve housing structure of the present embodiment;
Fig. 5 is a schematic structural diagram of a second seal ring according to this embodiment.
Reference numerals: 1. a valve housing; 2. a valve core; 3. a handle; 4. a first seal ring; 5. a second seal ring; 6. a soft seal ring; 7. rib clamping grooves; 8. a rib; 9. a pressurized expansion device; 91. a limiting block; 92. the sliding block is convex; 93. a slide block; 94. a clamping groove; 10. a hard seal ring; 11. a valve housing boss; 12. a hard sealing boss; 13. soft sealing boss; 14. a sealing gasket; 15. and a valve cavity.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings.
The embodiment discloses a groove type double-seal ball valve, as shown in fig. 1-5, a valve cavity 15 is arranged in a valve shell 1, a valve core 2 is arranged in the valve cavity 15, sealing gaskets 14 are arranged at medium inlets and medium outlets on two sides of the valve core 2, the sealing gaskets 14 are used for fixing a first sealing ring 4, the sealing gaskets 14 are provided with the first sealing ring 4, and the first sealing ring 4 is used for realizing the main sealing function of the valve body and preventing medium leakage; in the valve cavity 15, a valve housing bulge 11 is arranged near a medium inlet, a second sealing ring 5 is arranged below the valve housing bulge 11, and the reason for arranging the second sealing ring 5 is that the inlet end pressure pushes the valve core 2 to shift rightwards to be tightly combined with the sealing ring, so that the contact force of the left sealing ring is reduced, and the valve body sealing surface is possibly leaked to cause corrosion of the valve body sealing surface, therefore, the second sealing ring 5 is required to avoid the corrosion, and the service life of equipment is prolonged.
The second sealing ring 5 comprises a soft sealing ring 6 and a hard sealing ring 10, a soft sealing boss 13 is arranged on the soft sealing ring 6, a hard sealing boss 12 is arranged on the hard sealing ring 10, the soft sealing ring 6 is an equally divided circular ring when the bosses are embedded, the cross section of the soft sealing ring 6 is in an inverted L shape, the cross section of the hard sealing ring 10 is in a U shape, after the two sealing rings rotate for a certain angle, the convex edges 8 on the hard sealing ring 10 can be mutually embedded into the clamping grooves 7 and are embedded and connected with the valve housing protrusions 11, the valve housing protrusions 11 are embedded into grooves with the U-shaped cross section, the hard sealing ring 10 is clamped on the valve housing 1, the positioning of the second sealing ring 5 is realized, in the working process of equipment, the soft sealing ring and the hard sealing ring are combined, the requirements of toughness and flexibility of the second sealing ring 5 can be simultaneously met, tearing is prevented, and the service life of the sealing ring is prolonged.
The soft sealing washer 6 bottom is provided with pressurized expansion device 9, valve casing 1 receives the influence of high water pressure in the course of the work, and valve casing 1 will have the inflation of certain degree, can make first sealing washer 4 sealed effect variation at this moment, and the slider 93 of pressurized expansion device 9 receives the water pressure to influence to the draw-in groove 94 in sliding, struts soft sealing washer 6, increases the interference of soft sealing washer 6, guarantees sealed effect, and when water pressure reduced, soft sealing washer 6 resumes, and slider 93 roll-off to stopper 91 department can not deviate from.
The valve core 2 is a spherical shell with a hole in the middle, a handle 3 is arranged right above the valve core 2, and the handle 3 extends out of the valve housing 1 and can rotate.
The valve core 2 is coated with hard paint, preferably aluminum oxide, so that the valve core 2 is protected, direct impact of flowing medium on the valve core 2 is reduced, and the service life of the valve core 2 is prolonged.
The above embodiments are only preferred embodiments of the present utility model, and are not intended to limit the present utility model, and any modifications, equivalent substitutions, improvements, etc. within the design concept of the present utility model should be included in the scope of the present utility model.
Claims (5)
1. The utility model provides a slot type double seal ball valve, includes valve casing (1), case (2), first sealing washer (4), second sealing washer (5), its characterized in that: a valve cavity (15) is arranged in the valve shell (1), the valve core (2) is arranged in the valve cavity (15), sealing gaskets (14) are arranged at medium inlets and medium outlets on two sides of the valve shell (1) close to the valve core (2), and a first sealing ring (4) is arranged on the sealing gaskets (14); valve pocket (15) are interior be close to medium import department and are provided with valve casing arch (11), second sealing washer (5) are installed on valve casing arch (11), second sealing washer (5) are including soft sealing washer (6), stereoplasm sealing washer (10), soft sealing washer (6) bottom is provided with pressurized expansion device (9), pressurized expansion device (9) are towards medium import department one side.
2. The groove-type double-seal ball valve according to claim 1, wherein: a plurality of soft sealing bosses (13) extend from the soft sealing ring (6), rib clamping grooves (7) are formed below the soft sealing bosses (13), the cross section of the soft sealing ring (6) is in an inverted L shape, hard sealing bosses (12) are arranged on the hard sealing ring (10), grooves are formed in two adjacent pairs of the hard sealing bosses (12), ribs (8) are arranged in the grooves formed transversely and can be matched with the rib clamping grooves (7), the grooves formed longitudinally can be matched with valve housing protrusions (11), and the cross section of the hard sealing ring (10) is U-shaped.
3. The groove-type double-seal ball valve according to claim 1, wherein: the compression expansion device (9) comprises a sliding block (93) and a clamping groove (94), wherein a limiting block (91) is arranged on the clamping groove (94), the sliding block (93) is arranged on the outer side of the clamping groove (94) to be of a conical structure, and a sliding block protrusion (92) is arranged on the sliding block (93).
4. The groove-type double-seal ball valve according to claim 1, wherein: the valve core (2) is a spherical shell with a hole in the middle, a handle (3) is arranged right above the valve core (2), and the handle (3) extends out of the valve housing (1) and can rotate.
5. The groove-type double-seal ball valve according to claim 1, wherein: the valve core (2) is provided with a hard coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322962222.9U CN221221504U (en) | 2023-10-31 | 2023-10-31 | Groove type double-sealing ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322962222.9U CN221221504U (en) | 2023-10-31 | 2023-10-31 | Groove type double-sealing ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221221504U true CN221221504U (en) | 2024-06-25 |
Family
ID=91570767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322962222.9U Active CN221221504U (en) | 2023-10-31 | 2023-10-31 | Groove type double-sealing ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221221504U (en) |
-
2023
- 2023-10-31 CN CN202322962222.9U patent/CN221221504U/en active Active
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| GR01 | Patent grant |