CN221003869U - Ball valve with elastic valve seat - Google Patents
Ball valve with elastic valve seat Download PDFInfo
- Publication number
- CN221003869U CN221003869U CN202322307961.4U CN202322307961U CN221003869U CN 221003869 U CN221003869 U CN 221003869U CN 202322307961 U CN202322307961 U CN 202322307961U CN 221003869 U CN221003869 U CN 221003869U
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- Prior art keywords
- valve seat
- groove
- connecting piece
- ball
- valve
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000002788 crimping Methods 0.000 claims description 10
- 238000010276 construction Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 17
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000002184 metal Substances 0.000 description 6
- 238000003754 machining Methods 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Taps Or Cocks (AREA)
Abstract
The utility model relates to a ball valve with an elastic valve seat, which comprises a connecting piece and a ball body, wherein the connecting piece and the ball body are elastically pressed and connected with each other, a spring is pressed and connected between one end of the top of the valve seat and the connecting piece, a first stepped groove, a second stepped groove, a third stepped groove and a fourth stepped groove are sequentially formed in the inner wall of the connecting piece, a lip-shaped sealing piece and a graphite ring are sequentially pressed and connected between one end of the valve seat and the connecting piece, an annular boss is arranged at the other end of the valve seat, the boss is elastically abutted with the ball body, and the ball body is driven by a valve rod. The ball valve with the elastic valve seat has the advantages of reducing cost, improving tightness while increasing manufacturing errors, meeting compensation function, prolonging service life and the like.
Description
Technical Field
The utility model relates to the technical field of ball valves, in particular to a ball valve with an elastic valve seat.
Background
At present, the metal hard seal fixed ball valve has the characteristics of simple working principle, stable structure, high temperature resistance, pressure resistance, corrosion resistance and the like, and is widely applied to fluid control systems in industries such as petroleum, chemical industry, metallurgy, electric power and the like. With the continuous development of technology, the metal hard seal fixed ball valve will continue to be improved and applied and popularized in the future.
The ball of conventional ball valve needs higher machining precision, perhaps improves the leakproofness through graphite, and when the ball machining error increases, the leakproofness of ball valve reduces, reduction in service life.
To this end we have developed a ball valve with an elastic valve seat to solve the above problems.
Disclosure of utility model
The utility model aims to overcome the defects of the prior art and provide the ball valve with the elastic valve seat, which has the advantages of reducing cost, improving the tightness while increasing manufacturing errors, meeting compensation functions, prolonging the service life and the like.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a take ball valve of elasticity disk seat, includes a connecting piece and a spheroid, the connecting piece with elasticity crimping disk seat between the spheroid, the top one end of disk seat with crimping a spring between the connecting piece, the one end of disk seat with crimping in proper order between the connecting piece a lip seal, a graphite ring, the other end department of disk seat is equipped with an annular boss, the boss with spheroid elasticity butt, the spheroid passes through the valve rod drive.
Preferably, the boss is provided with an area A for crimping, a first groove and a second groove are respectively arranged at two sides of the width direction of the boss, and the area A is in crimping connection with the ball body.
Preferably, one end of the sphere is provided with a first annular groove with an L-shaped structure, and the first annular groove is in crimping connection with a bearing.
Preferably, a first step groove is formed at one end of the connecting piece, a supporting plate is pressed between the first step groove and the bearing, a protruding block is arranged on the supporting plate, and the protruding block is pressed with the bearing.
Preferably, a second stepped groove is formed in the middle of the connecting piece, a horizontal blind hole is formed in the valve seat, and the spring is in compression joint between the blind hole and the second stepped groove.
Preferably, the second stepped groove is arranged close to the ball body, and the second stepped groove is in clearance fit with the valve seat.
Preferably, the valve seat is provided with a second annular groove with an L-shaped structure, the connecting piece is provided with a third step groove, and the lip-shaped sealing piece is pressed between the third step groove and the second annular groove.
Preferably, the connecting piece is further provided with a U-shaped annular groove, the graphite ring is sleeved in the U-shaped annular groove, and the third step groove is in pressure connection with the graphite ring.
Preferably, the connecting piece is provided with a fourth stepped groove which is in clearance fit with one end of the valve seat.
Preferably, a U-shaped groove is arranged at the top end of the sphere, and the U-shaped groove is spliced with the valve rod.
Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
the ball valve with the elastic valve seat comprises the metal sealing valve seat with a certain elastic compensation function, so that the manufacturing cost can be reduced, and reliable sealing can be realized while the inclusion of manufacturing errors is better; the ball body of the fixed ball valve is tightly contacted with the metal valve seat for sealing. The sealing surface of the valve seat, namely the boss is provided with grooves to meet the compensation function, when the machining precision of the ball body has errors and uneven abrasion and high-temperature deformation, the valve seat can provide enough compensation, and the service life is prolonged; the seal of the valve seat and the assembly of the connecting piece is realized by graphite seal and lip seal, the valve seat and the sealing surface of the sphere are closely attached after grinding, the size of the compensation seal is reserved, the tightness is improved, and the cost is reduced.
Drawings
Fig. 1 is a schematic structural view of a ball valve with an elastic valve seat according to the present utility model.
Fig. 2 is an enlarged view of the present utility model at B in fig. 1.
Detailed Description
The utility model will be described in further detail with reference to the accompanying drawings and specific examples.
In fig. 1 and 2, a ball valve with an elastic valve seat comprises a connecting piece 8 and a ball body 1, wherein the connecting piece 8 is elastically pressed against a valve seat 4 between the ball body 1 and the connecting piece 8. One end of the valve seat 4 and the connecting piece 8 are sequentially pressed with a lip-shaped sealing piece 7 and a graphite ring 6, the lip-shaped sealing piece 7 is arranged on the outer side of the valve seat 4, and an annular boss 41 is arranged at the other end of the valve seat 4. The boss 41 elastically abuts against the ball 1. The ball body 1 is driven by the valve rod, a U-shaped groove 15 is arranged at the top end of the ball body 1, and the U-shaped groove 15 is spliced with the valve rod. One end of the sphere 1 is provided with a first annular groove 11 with an L-shaped structure, and the first annular groove 11 is in press fit connection with a bearing 2.
The top end of the valve seat 4 is provided with a horizontal blind hole 42, and the valve seat 4 is provided with a second annular groove 45 with an L-shaped structure. The boss 41 is provided with a crimping area A, and is matched with the ball 1 for sealing after grinding. A first groove 411 and a second groove 412 are respectively arranged at two sides of the boss 41 in the width direction, the grooves are convenient for releasing stress, and the area A is in pressure connection with the sphere 1.
The inner wall of the connecting member 8 is provided with a first stepped groove 81, a second stepped groove 82, a third stepped groove 83 and a fourth stepped groove 85 in this order. The fourth stepped groove 85 is clearance fitted with one end of the valve seat 4. A first stepped groove 81 is provided at one end of the connecting member 8, and a support plate 3 is crimped between the first stepped groove 81 and the bearing 2. The support plate 3 is provided with a flange 31, the flange 31 being in pressure connection with the bearing 2. A spring 5 is pressed between one end of the top of the valve seat 4 and the connecting piece 8, and a second step groove 82 is arranged in the middle of the connecting piece 8. The spring 5 is crimped between the blind hole 42 and the second stepped groove 82. The second stepped groove 82 is provided close to the ball 1, and the second stepped groove 82 is in clearance fit with the valve seat 4. A third stepped groove 83 is provided in the middle of the inner wall of the connecting member 8. The connecting piece 8 is further provided with a U-shaped annular groove 43 at the middle position between the blind hole 42 and the second annular groove 45. A fourth stepped slot 85 is provided at the other end of the connecting member 8. The lip seal 7 is crimped between the third stepped groove 83 and the second annular groove 45. The U-shaped ring groove 43 is sleeved with the graphite ring 6, and the third step groove 83 is in pressure welding sealing with the graphite ring 6.
Ball and valve seat seal: the spring 5 is installed in the valve seat hole of the connecting piece 8 together with the metal valve seat 4, the bearing 2 is installed on the ball handle of the ball body 1, the supporting plate 3 is installed on the ball body 1, and the whole body is installed in the connecting piece 8 to be in close contact with the metal valve seat 4 to realize the valve seat sealing function. As shown in figure 2, the sealing part of the valve seat and the sphere is processed with grooves on two sides, the main sealing area is an area A, the area A is ground carefully and then is matched with the sphere 1 for sealing, and the area outside the area A has errors in the processing precision of the sphere, the valve seat can provide enough compensation when the sphere is unevenly worn and deformed at high temperature, and can assist sealing by means of medium pressure, the valve has lasting and reliable sealing performance, meanwhile, the processing difficulty of the sphere is reduced, and the manufacturing cost is reduced.
The foregoing is merely a specific application example of the present utility model, and the protection scope of the present utility model is not limited in any way. All technical schemes formed by equivalent transformation or equivalent substitution fall within the protection scope of the utility model.
Claims (10)
1. A ball valve with an elastic valve seat, which is characterized in that: including connecting piece (8) and spheroid (1), connecting piece (8) with elasticity crimping disk seat (4) between spheroid (1), the top one end of disk seat (4) with crimping spring (5) between connecting piece (8), one end of disk seat (4) with one lip seal (7), one graphite ring (6) of crimping in proper order between connecting piece (8), the other end department of disk seat (4) is equipped with annular boss (41), boss (41) with spheroid (1) elasticity butt, spheroid (1) are through valve rod drive.
2. Ball valve with elastic valve seat according to claim 1, characterized in that the boss (41) is provided with a crimp zone a, and the two sides of the boss (41) in the width direction are respectively provided with a first groove (411) and a second groove (412), and the zone a is crimped with the ball body (1).
3. Ball valve with elastic valve seat according to claim 1, characterized in that one end of the ball (1) is provided with a first ring groove (11) of L-shaped structure, said first ring groove (11) being crimped against a bearing (2).
4. A ball valve with an elastic valve seat according to claim 3, characterized in that a first stepped groove (81) is provided at one end of the connecting piece (8), a supporting plate (3) is crimped between the first stepped groove (81) and the bearing (2), the supporting plate (3) is provided with a protruding block (31), and the protruding block (31) is crimped with the bearing (2).
5. Ball valve with elastic valve seat according to claim 1, characterized in that a second stepped groove (82) is provided in the middle of the connecting piece (8), the valve seat (4) is provided with a horizontal blind hole (42), and the spring (5) is pressed between the blind hole (42) and the second stepped groove (82).
6. A ball valve with a resilient valve seat according to claim 5, characterized in that the second stepped groove (82) is arranged close to the ball (1), the second stepped groove (82) being in a clearance fit with the valve seat (4).
7. Ball valve with elastic valve seat according to claim 1, characterized in that the valve seat (4) is provided with a second ring groove (45) of L-shaped construction, the connecting piece (8) is provided with a third stepped groove (83), and the lip seal (7) is crimped between the third stepped groove (83) and the second ring groove (45).
8. Ball valve with elastic valve seat according to claim 7, characterized in that the connecting piece (8) is further provided with a U-shaped ring groove (43), the U-shaped ring groove (43) is sleeved with the graphite ring (6), and the third step groove (83) is in pressure connection with the graphite ring (6).
9. Ball valve with elastic valve seat according to claim 1, characterized in that the connecting piece (8) is provided with a fourth stepped groove (85), which fourth stepped groove (85) is in clearance fit with one end of the valve seat (4).
10. Ball valve with elastic valve seat according to claim 1, characterized in that the top end of the ball body (1) is provided with a U-shaped groove (15), the U-shaped groove (15) is inserted into the valve rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322307961.4U CN221003869U (en) | 2023-08-28 | 2023-08-28 | Ball valve with elastic valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322307961.4U CN221003869U (en) | 2023-08-28 | 2023-08-28 | Ball valve with elastic valve seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221003869U true CN221003869U (en) | 2024-05-24 |
Family
ID=91090216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322307961.4U Active CN221003869U (en) | 2023-08-28 | 2023-08-28 | Ball valve with elastic valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221003869U (en) |
-
2023
- 2023-08-28 CN CN202322307961.4U patent/CN221003869U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |