CN212564487U - Anti-leakage ball valve - Google Patents
Anti-leakage ball valve Download PDFInfo
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- CN212564487U CN212564487U CN202020939705.0U CN202020939705U CN212564487U CN 212564487 U CN212564487 U CN 212564487U CN 202020939705 U CN202020939705 U CN 202020939705U CN 212564487 U CN212564487 U CN 212564487U
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Abstract
The utility model discloses an anti-leakage ball valve, which comprises a valve body, wherein a valve cavity is arranged in the valve body, a ball body is arranged in the valve cavity, a valve rod mechanism for driving the ball body to rotate is arranged on the valve body, and the valve rod mechanism comprises a valve rod; one end of the valve body is provided with a first communicating channel, the other end of the valve body is provided with a valve cover fixedly connected with the valve body, and a second communicating channel coaxial with the first communicating channel is arranged in the valve cover; one ends of the first communicating channel and the second communicating channel, which are close to the valve cavity, are respectively provided with a large-diameter section, and the inner diameter of the large-diameter section is larger than that of the corresponding first communicating channel or second communicating channel and forms a shaft shoulder; mounting rings in sliding fit with the two large-diameter sections are respectively arranged in the two large-diameter sections, limiting rings extending inwards in the radial direction are arranged on the mounting rings, and valve seats are arranged on one sides of the limiting rings facing the ball body; the shaft shoulder is provided with mounting holes in an annular array mode, springs used for driving the corresponding mounting rings to move towards the ball body are mounted in the mounting holes, and at least one first sealing ring is arranged between the mounting rings and the corresponding large-diameter section.
Description
Technical Field
The utility model relates to a ball valve, specific be an antiseep ball valve.
Background
The opening and closing part (ball) of the ball valve is driven by the valve rod and rotates around the axis of the ball valve. The ball valve is mainly used for cutting off, distributing and changing the flow direction of a medium in a pipeline, and can be closed tightly only by rotating 90 degrees and a small rotating moment. Because the abrasion inevitably exists between the valve seat and the ball body of the ball valve, after the ball valve is used for a long time, the sealing performance between the valve seat and the ball body is reduced due to the abrasion, and the service life of the ball valve is reduced.
Chinese patent publication No. CN209511175U discloses a ball valve provided with a wear compensation mechanism for driving the valve seat to move inwardly in a direction perpendicular to the valve stem. The wear compensation mechanism comprises compensation holes which are annularly and uniformly distributed on corresponding limiting rings, an inner side opening is formed in one end, facing the sphere, of each compensation hole, a push pin which is in sliding fit with the compensation holes and can extend out of the inner side opening of the compensation holes is sleeved in each compensation hole, one end of each push pin is in contact fit with the corresponding valve seat, and a spring which is used for applying elastic force to the push pins and driving the push pins to extend out of the inner side openings is further arranged in each compensation hole. Although the abrasion compensation mechanism can compensate the abrasion loss between the valve seat and the ball body, under the action of the spring, a gap exists between the valve seat and the limiting ring, so that the sealing performance between the valve seat and the valve body and between the valve seat and the limiting ring is reduced, and the leakage phenomenon exists.
Disclosure of Invention
In view of this, the utility model aims at providing an antiseep ball valve not only can compensate the wearing and tearing between disk seat and the spheroid, can effectively improve sealing performance moreover, prevents the seepage.
In order to achieve the above purpose, the utility model provides a following technical scheme:
an anti-leakage ball valve comprises a valve body, wherein a valve cavity is arranged in the valve body, a ball body is arranged in the valve cavity, a valve rod mechanism used for driving the ball body to rotate is arranged on the valve body, and the valve rod mechanism comprises a valve rod; one end of the valve body is provided with a first communicating channel, the other end of the valve body is provided with a valve cover fixedly connected with the valve body, and a second communicating channel coaxial with the first communicating channel is arranged in the valve cover; the method is characterized in that:
a large-diameter section I is arranged at one end, close to the valve cavity, of the first communication passage, a large-diameter section II is arranged at one end, close to the valve cavity, of the second communication passage, the inner diameter of the large-diameter section I is larger than that of the corresponding first communication passage, and a shaft shoulder I is formed between the large-diameter section I and the corresponding first communication passage; the inner diameter of the large-diameter section II is larger than that of the corresponding second communication channel, and a shaft shoulder II is formed between the large-diameter section II and the corresponding second communication channel; an installation ring I and an installation ring II which are in sliding fit with the large-diameter section I and the large-diameter section II are respectively arranged in the large-diameter section I and the large-diameter section II, a limiting ring I which extends inwards in the radial direction is arranged on the installation ring I, and a valve seat I is arranged on one side, facing the sphere, of the limiting ring I; a limiting ring II extending inwards in the radial direction is arranged on the mounting ring II, and a valve seat II is arranged on one side, facing the ball body, of the limiting ring II;
the shaft shoulder I is provided with mounting holes I in an annular array mode, springs I used for driving the corresponding mounting rings I to move towards the ball body are mounted in the mounting holes I, and at least one first sealing ring I is arranged between each mounting ring I and the corresponding large-diameter section I;
annular array is equipped with mounting hole II on II shoulders, the installation is equipped with in II mounting holes and is used for the drive to correspond II orientation of mounting ring the spring II that the spheroid removed, just mounting ring II with correspond be equipped with one at least first sealing washer II between the major diameter section II.
Furthermore, mounting columns I are arranged on the side face, facing the corresponding shaft shoulder I, of the mounting ring I in one-to-one correspondence with the mounting holes I, the mounting columns I extend into the corresponding mounting holes I, and the spring is sleeved on the mounting columns I;
the mounting ring II is provided with mounting columns II in one-to-one correspondence with the mounting holes II on the side face of one side, corresponding to the mounting ring II, of the shaft shoulder II, the mounting columns II extend into the corresponding mounting holes II, and the spring sleeves are arranged on the mounting columns II.
Further, a valve rod mounting hole perpendicular to the first communication channel is formed in the valve body, the valve rod mounting hole comprises a limiting section close to one side of the valve cavity and a packing section far away from one side of the valve cavity, a sealing section is arranged between the limiting section and the packing section, and the inner diameter of the sealing section is smaller than that of the limiting section and that of the packing section;
the valve rod comprises a limiting collar positioned in the limiting section, and at least one second sealing ring is arranged between the valve rod and the sealing section; the valve rod is sleeved with a filler positioned in the filler section and a filler nut used for compressing and fixing the filler, and the filler nut is in threaded fit with the valve body.
Furthermore, an internal thread section is further arranged in the filling section, and the filling nut is in threaded fit with the internal thread section.
Furthermore, the filler adopts polyethylene fluoride filler.
Further, the valve rod is sleeved with a handle and a locking nut used for locking the handle.
The beneficial effects of the utility model reside in that:
the utility model discloses an antiseep ball valve sets up the collar respectively through the one side that is close to the valve pocket at first intercommunication passageway and second intercommunication passageway, and install the disk seat on the collar, utilize the spring drive collar to remove along the first intercommunication passageway or the second intercommunication passageway that correspond, can compensate wearing and tearing between disk seat and the spheroid, and through set up first sealing washer between collar and the first intercommunication passageway or the second intercommunication passageway that correspond, can avoid rivers from the collar and the first intercommunication passageway or the second intercommunication passageway between the second intercommunication passageway that correspond seepage, promptly the utility model discloses an antiseep ball valve can effectively improve sealing performance, prevents the seepage.
Drawings
In order to make the purpose, technical scheme and beneficial effect of the utility model clearer, the utility model provides a following figure explains:
FIG. 1 is a schematic structural view of an embodiment of the anti-leakage ball valve of the present invention;
FIG. 2 is detail A of FIG. 1;
FIG. 3 is detail B of FIG. 1;
fig. 4 is a perspective view of the anti-leakage ball valve of the present embodiment.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.
As shown in fig. 1, it is a schematic structural diagram of an embodiment of the anti-leakage ball valve of the present invention. The antiseep ball valve of this embodiment, including valve body 1, be equipped with valve pocket 2 in the valve body 1, be equipped with spheroid 3 in the valve pocket 2, be equipped with on the valve body 1 and be used for driving 3 pivoted valve rod mechanisms of spheroid, valve rod mechanism includes valve rod 4. One end of the valve body 1 is provided with a first communicating channel 5, the other end of the valve body is provided with a valve cover 6 fixedly connected with the valve body, and a second communicating channel 7 coaxial with the first communicating channel 5 is arranged in the valve cover 6. Threaded connection between the valve gap 6 of this embodiment and the valve body 1, and be equipped with sealing washer 32 between valve gap 6 and the valve body 1. Through setting up valve gap 6, can make things convenient for the installation of spare parts such as collar I8 in the first intercommunication passageway 5, also be convenient for simultaneously the installation of spare parts such as collar II 9 in the second intercommunication passageway 7.
The one end that first intercommunication passageway 5 of this embodiment is close to the valve chamber 2 is equipped with big footpath section I5 a, and the one end that second intercommunication passageway 7 is close to the valve chamber 2 is equipped with big footpath section II 7 a. The inner diameter of the large-diameter section I5 a is larger than that of the corresponding first communication channel 5, and a shaft shoulder I5 b is formed between the large-diameter section I5 a and the first communication channel 5. Be equipped with in the major diameter section I5 a rather than sliding fit's collar I8, be equipped with radial inside extension's spacing ring I10 on the collar I8, spacing ring I10 is equipped with disk seat I12 towards spheroid 3 one side. The large diameter section II 7a has an inner diameter larger than that of the second communication passage 7 and forms a shoulder 7b between the large diameter section II 7a and the second communication passage 7. Be equipped with in the major diameter section II 7a rather than sliding fit's collar II 9, be equipped with radial inward extension's spacing ring II 11 on the collar II 9, spacing ring II 11 is equipped with disk seat II 13 towards one side of spheroid 3.
Annular array is equipped with mounting hole I14 on the shaft shoulder I5 b of this embodiment, and the installation is equipped with in the mounting hole I14 and is used for driving the I8 of the mounting ring that corresponds and moves towards spheroid 3 spring I16, and is equipped with at least one first sealing washer I18 between I8 of mounting ring and the big footpath section I5 a that corresponds. The annular array is equipped with mounting hole II 15 on the shaft shoulder 7b of this embodiment, and the installation is equipped with in II 15 of mounting hole and is used for driving II 9 of corresponding mounting ring and towards II 17 of the spring that spheroid 3 removed, and is equipped with at least one first sealing washer II 19 between II 9 of mounting ring and the major diameter section II 7a that corresponds.
Further, the installing column 20 is arranged on the side face, facing the corresponding shaft shoulder I5 b, of the installing ring I8 in the embodiment in one-to-one correspondence with the installing hole I14, the installing column 20 extends into the installing hole I14, and the spring I16 is sleeved on the installing column 20. In a similar way, the mounting posts 1 are arranged on the side face, facing the corresponding shaft shoulder 7b, of the mounting ring II 9 in one-to-one correspondence with the mounting holes II 15, the mounting posts II 21 extend into the corresponding mounting holes II 15, and the springs II 17 are sleeved on the mounting posts II 21.
Further, be equipped with on the valve body 1 with the perpendicular valve rod mounting hole of first intercommunication passageway 5, the valve rod mounting hole is equipped with seal segment 24 including spacing section 22 that is close to valve chamber 2 one side and the section of packing 23 of keeping away from valve chamber 2 one side between spacing section 22 and the section of packing 23, and seal segment 24's internal diameter is less than spacing section 22 and the internal diameter of packing section 23. Correspondingly, the valve rod 4 comprises a limit collar 25 positioned in the limit section 22, and at least one second sealing ring 26 is arranged between the valve rod 4 and the sealing section 24; the valve rod 4 is sleeved with a packing 27 positioned in the packing section 23 and a packing nut 28 for compressing and fixing the packing 27, and the packing nut 28 is in threaded fit with the valve body 1. The filler 27 of this embodiment is made of polyethylene fluoride, specifically, an internal thread section 29 is further provided in the filler section 23 of this embodiment, and a filler nut 28 is in threaded fit with the internal thread section 29. In the present embodiment, the sealing structure combining the packing 27 and the second sealing ring 26 is adopted, firstly, the positioning error caused by the processing error is solved in the positioning, the sealing is a sealing form with a double structure, and the second sealing ring 26 plays a role in solving the positioning error caused by the processing error in addition to the sealing function.
Further, a handle 30 and a lock nut 31 for locking the handle 30 are sleeved on the valve rod 4.
The antiseep ball valve of this embodiment sets up the collar respectively through the one side that is close to the valve pocket at first intercommunication passageway and second intercommunication passageway, and install the disk seat on the collar, utilize the spring drive collar to remove along the first intercommunication passageway or the second intercommunication passageway that correspond, can compensate wearing and tearing between disk seat and the spheroid, and through set up first sealing washer between collar and the first intercommunication passageway or the second intercommunication passageway that correspond, can avoid rivers from the collar and the first intercommunication passageway or the second intercommunication passageway between the second intercommunication passageway that correspond, promptly the utility model discloses an antiseep ball valve can effectively improve sealing performance, prevents the seepage.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.
Claims (6)
1. An anti-leakage ball valve comprises a valve body (1), wherein a valve cavity (2) is arranged in the valve body (1), a ball body (3) is arranged in the valve cavity (2), a valve rod mechanism for driving the ball body (3) to rotate is arranged on the valve body (1), and the valve rod mechanism comprises a valve rod (4); a first communicating channel (5) is arranged at one end of the valve body (1), a valve cover (6) fixedly connected with the valve body is arranged at the other end of the valve body, and a second communicating channel (7) coaxial with the first communicating channel (5) is arranged in the valve cover (6); the method is characterized in that:
a large-diameter section I (5 a) is arranged at one end, close to the valve cavity (2), of the first communication passage (5), a large-diameter section II (7 a) is arranged at one end, close to the valve cavity (2), of the second communication passage (7), the inner diameter of the large-diameter section I (5 a) is larger than that of the corresponding first communication passage (5), and a shaft shoulder I (5 b) is formed between the large-diameter section I (5 a) and the corresponding first communication passage (5); the inner diameter of the large-diameter section II (7 a) is larger than that of the corresponding second communication channel (7), and a shaft shoulder II (7 b) is formed between the large-diameter section II (7 a) and the corresponding second communication channel (7); a mounting ring I (8) and a mounting ring II (9) which are in sliding fit with the large-diameter section I (5 a) and the large-diameter section II (7 a) are respectively arranged in the large-diameter section I (5 a) and the large-diameter section II (7 a), a limiting ring I (10) which extends inwards in the radial direction is arranged on the mounting ring I (8), and a valve seat I (12) is arranged on one side, facing the sphere (3), of the limiting ring I (10); a limiting ring II (11) extending inwards in the radial direction is arranged on the mounting ring II (9), and a valve seat II (13) is arranged on one side, facing the ball body (3), of the limiting ring II (11);
the shaft shoulder I (5 b) is provided with mounting holes I (14) in an annular array mode, springs I (16) used for driving the corresponding mounting rings I (8) to move towards the ball body (3) are mounted in the mounting holes I (14), and at least one first sealing ring I (18) is arranged between the mounting rings I (8) and the corresponding large-diameter section I (5 a);
annular array is equipped with mounting hole II (15) on shoulder II (7 b), the installation is equipped with in mounting hole II (15) and is used for the drive to correspond II (9) orientations of mounting ring spring II (17) that spheroid (3) removed, just II (9) of mounting ring and corresponding be equipped with at least one first sealing washer II (19) between big footpath section II (7 a).
2. The leak-proof ball valve of claim 1, wherein: mounting columns I (20) are arranged on the side face, facing the corresponding shaft shoulder I (5 b), of the mounting ring I (8) and correspond to the mounting holes I (14) one by one, the mounting columns I (20) extend into the corresponding mounting holes I (14), and the spring is sleeved on the mounting columns I (20);
the mounting ring II (9) is towards corresponding on the side of one side of shaft shoulder II (7 b) with mounting hole II (15) one-to-one is equipped with mounting post II (21), mounting post II (21) extend into the correspondence in mounting hole II (15), the spring suit is in on mounting post II (21).
3. The leak-proof ball valve of claim 1, wherein: a valve rod mounting hole perpendicular to the first communicating channel (5) is formed in the valve body (1), the valve rod mounting hole comprises a limiting section (22) close to one side of the valve cavity (2) and a filling section (23) far away from one side of the valve cavity (2), a sealing section (24) is arranged between the limiting section (22) and the filling section (23), and the inner diameter of the sealing section (24) is smaller than the inner diameters of the limiting section (22) and the filling section (23);
the valve rod (4) comprises a limit collar (25) positioned in the limit section (22), and at least one second sealing ring (26) is arranged between the valve rod (4) and the sealing section (24); the valve rod (4) is sleeved with a packing (27) located in the packing section (23) and a packing nut (28) used for compressing and fixing the packing (27), and the packing nut (28) is in threaded fit with the valve body (1).
4. The leak-proof ball valve of claim 3, wherein: an internal thread section (29) is further arranged in the filling section (23), and the filling nut (28) is in threaded fit with the internal thread section (29).
5. The leak-proof ball valve of claim 3, wherein: the filler (27) is polyethylene fluoride filler.
6. The leak-proof ball valve of claim 1, wherein: the valve rod (4) is sleeved with a handle (30) and a locking nut (31) used for locking the handle (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020939705.0U CN212564487U (en) | 2020-05-28 | 2020-05-28 | Anti-leakage ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020939705.0U CN212564487U (en) | 2020-05-28 | 2020-05-28 | Anti-leakage ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212564487U true CN212564487U (en) | 2021-02-19 |
Family
ID=74637948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020939705.0U Active CN212564487U (en) | 2020-05-28 | 2020-05-28 | Anti-leakage ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212564487U (en) |
-
2020
- 2020-05-28 CN CN202020939705.0U patent/CN212564487U/en active Active
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