CN213598693U - Valve rod sealing device for hydroelectric ball valve - Google Patents
Valve rod sealing device for hydroelectric ball valve Download PDFInfo
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- CN213598693U CN213598693U CN202022081204.6U CN202022081204U CN213598693U CN 213598693 U CN213598693 U CN 213598693U CN 202022081204 U CN202022081204 U CN 202022081204U CN 213598693 U CN213598693 U CN 213598693U
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- 238000007789 sealing Methods 0.000 title claims abstract description 192
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 47
- 210000004907 gland Anatomy 0.000 claims abstract description 34
- 230000005611 electricity Effects 0.000 claims abstract description 8
- 230000002093 peripheral effect Effects 0.000 claims description 27
- 230000000694 effects Effects 0.000 description 2
- 238000010420 art technique Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model relates to a water and electricity valve rod sealing device for ball valve, it includes valve body, valve rod and gland wear the dress in the valve body the valve rod, valve rod lower extreme link firmly with the spheroid, the gland is arranged in outside the valve body, cup joints on the valve rod and links firmly with the valve body, and its characteristics lie in: the anti-flying valve further comprises a sealing assembly and an anti-flying ring, wherein the sealing assembly is arranged between the valve body and the valve rod and is sleeved on the valve rod, the anti-flying ring is fixedly connected with the valve body in the middle of the sealing assembly, and the top end of the sealing assembly is in contact with the gland and is fixedly connected with the valve body through the gland.
Description
Technical Field
The utility model belongs to a water and electricity ball valve is a valve rod sealing device for water and electricity ball valve.
Background
The ball valve that the hydraulic turbine intakes is called water and electricity ball valve, and 2 seal structure of its valve rod are: it includes valve body 1, valve rod 2, gland 6 and little gland 9, wear the dress in the valve body 1 valve rod 2, 2 lower extremes of valve rod link firmly with spheroid 1, gland 6 is arranged in the valve body 1, cup joints on valve rod 2 and links firmly between valve rod 2 and the valve body 1, equally divide between valve body 1 and gland 6 and between valve rod 2 and gland 6 and do not set up O shape sealing washer 4 and O shape sealing washer 5, little gland 9 is arranged in gland 6, is linked firmly between valve body 1 and the gland 6 and through screw 7, sets up the sealing washer between valve rod 2 and little gland 9, sees figure 1. There are problems in that: although the O-shaped sealing ring 4 and the sealing ring 8 are adopted to realize dynamic sealing of the valve rod 2, the O-shaped sealing ring 4 and the sealing ring 8 can be abraded in long-term work, so that the sealing failure of the valve rod 2 can generate leakage, and the shaft head is caused to leak water.
Disclosure of Invention
The utility model discloses the technical problem that will solve is: the defects of the prior art are overcome, and the valve rod sealing device for the hydroelectric ball valve is provided.
The utility model provides a technical problem's scheme is: the utility model provides a water and electricity valve rod sealing device for ball valve, it includes valve body, valve rod and gland wear the dress in the valve body the valve rod, valve rod lower extreme link firmly with the spheroid, the gland is arranged in the valve body outside, cup joint on the valve rod and link firmly its characterized in that with the valve body: the anti-flying valve further comprises a sealing assembly and an anti-flying ring, wherein the sealing assembly is arranged between the valve body and the valve rod and is sleeved on the valve rod, the anti-flying ring is fixedly connected with the valve body in the middle of the sealing assembly, and the top end of the sealing assembly is in contact with the gland and is fixedly connected with the valve body through the gland.
Further, the sealing assembly is provided with an outer water diversion groove, a water diversion hole is formed in the valve body, the outer water diversion groove is communicated with the water diversion hole, the water diversion hole is plugged, and when leakage occurs after the sealing assembly of the valve rod is worn, the plug is replaced by a pipe joint, so that the leaked water is led out.
Further, the sealing assembly comprises an inner sealing ferrule and an outer sealing ferrule, the inner sealing ferrule is arranged in the valve body and sleeved on the valve rod, the anti-flying ring is arranged in the valve body and above the inner sealing ferrule, the outer periphery of the anti-flying ring extends into the valve body, the inner periphery of the anti-flying ring is located above the inner sealing ferrule and fixedly connected with the inner sealing ferrule, the outer sealing ferrule is arranged in the valve body and sleeved on the valve rod between the anti-flying ring and the gland, the lower end of the outer sealing ferrule extends into the anti-flying ring, the upper end of the outer sealing ferrule extends out of the valve body and contacts with the gland, and the outer sealing ferrule.
Further, the inner sealing ring comprises a first sealing sleeve, a first sealing ring and a second sealing ring, the first sealing sleeve is a circular cylinder, at least one sealing groove for accommodating the sealing ring is formed in the outer peripheral surface of the first sealing sleeve of the circular cylinder, and an outer water diversion groove is formed in the outer peripheral surface of the first sealing sleeve and above the sealing groove; the inner peripheral surface of the first sealing sleeve is provided with at least one annular groove for accommodating a sealing ring, an inner water guide groove is arranged above the annular groove, an outer water guide groove is communicated with the inner water guide groove, the first sealing ring is arranged in a sealing groove formed in the outer peripheral surface of the first sealing sleeve, the first sealing ring is simultaneously contacted with the valve body and the first sealing sleeve, the second sealing ring is arranged in the annular groove formed in the inner peripheral surface of the first sealing sleeve, and the second sealing ring is simultaneously contacted with the valve rod and the first sealing sleeve.
Further, the first sealing ring and the second sealing ring are O-shaped sealing rings.
Further, the outer seal ring includes second seal cover, third sealing washer and fourth sealing washer, the second seal cover is the ring cylinder, the second seal cover outer peripheral surface of ring cylinder sets up the seal groove that is used for holding the sealing washer at least one, set up the ring channel that is used for holding the sealing washer at the inner peripheral surface of second seal cover at least one, the third sealing washer is arranged in the seal groove of second seal cover outer peripheral surface setting, the third sealing washer contacts with valve body and second seal cover simultaneously, the fourth sealing washer is arranged in the ring channel of second seal cover inner peripheral surface setting, the fourth sealing washer contacts with valve rod and second seal cover simultaneously.
Further, the third sealing ring and the fourth sealing ring are O-shaped sealing rings.
Furthermore, the anti-flying ring is a circular ring body formed by a plurality of circular arc bodies with the same curvature radius.
The utility model has the advantages that: the adopted sealing assembly realizes multiple sealing through the first sealing ring to the fourth sealing ring, so that the sealing effect is improved; the outer water diversion groove and the inner water diversion groove arranged in the inner sealing ferrule and the water diversion hole additionally arranged in the valve body can be plugged at ordinary times. When the sealing assembly of the valve rod leaks after being worn, the plug can be replaced by a pipe joint, so that the leaked water is led out by a pipeline, the valve rod can be prevented from leaking, and the phenomenon of shaft head water leakage is effectively overcome; the anti-flying ring arranged on the valve body can fix the inner sealing ferrule, ensures that an outer water diversion groove arranged in the inner sealing ferrule is effectively communicated with a water diversion hole additionally arranged in the valve body, and further fixes the inner sealing ferrule.
Has the advantages of simple structure, convenience, practicability, low cost and obvious effect.
Drawings
FIG. 1 is a schematic view of a prior art valve stem seal structure of a hydroelectric ball valve;
FIG. 2 is a schematic structural view of a valve stem sealing device for a hydroelectric ball valve according to the present invention;
FIG. 3 is a schematic front view of an anti-flying ring of the valve stem sealing device for a hydroelectric ball valve;
FIG. 4 is a top view of FIG. 3;
fig. 5 is a schematic view of a first seal cartridge of the valve stem sealing device for a hydroelectric ball valve of the present invention;
fig. 6 is the utility model discloses a water and electricity is valve rod sealing device's for ball valve second seal cover schematic diagram.
In the figure: in the figure: the valve comprises a ball body 1, a valve rod 2, a valve body 3, a sealing ring in the shape of 4O, a sealing ring in the shape of 5O, a gland 6, a screw 7, a sealing ring 8, a small gland 9, an inner sealing ferrule 10, an anti-flying ring 11, an outer sealing ferrule 12, a gland 13, a fourth sealing ring 14, a third sealing ring 15, a first sealing ring 16, a plug 17, a second sealing ring 18, an outer water guide groove 19, an inner water guide groove 20, a sealing groove 21, an annular groove 22, a first sealing sleeve 23, a sealing groove 24, an annular groove 25 and a second sealing sleeve 26.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Referring to fig. 2-6, embodiment 1, this embodiment is a water and electricity valve rod 2 sealing device for ball valve, and it includes valve body 3, valve rod 2 and gland 13 wear to adorn in the valve body 3 valve rod 2, and 2 lower extremes of valve rod link firmly with spheroid 1, gland 13 is arranged in outside the valve body 3, cup joints on the valve rod 2 and links firmly with valve body 3, still includes seal assembly and prevents flying ring 11, seal assembly arranges in between valve body 3 and valve rod 2, cup joints on the valve rod 2, seal assembly's centre is passed through prevent flying ring 11 and link firmly with valve body 3, seal assembly's top and gland 13 contact, and link firmly with valve body 3 through gland 13.
Further, the sealing assembly is provided with an outer water diversion groove 19, a water diversion hole is formed in the valve body 3, the outer water diversion groove 19 is communicated with the water diversion hole, the water diversion hole is sealed by a plug 17, and when leakage occurs after the sealing assembly of the valve rod 2 is abraded, the plug 17 is replaced by a pipe joint, so that the leaked water is led out.
Further, the sealing assembly comprises an inner sealing ferrule 10 and an outer sealing ferrule 12, the inner sealing ferrule 10 is arranged in the valve body 3 and sleeved on the valve rod 2, the anti-flying ring 11 is arranged in the valve body 3 and above the inner sealing ferrule 10, the outer periphery of the anti-flying ring 11 extends into the valve body 3, the inner periphery of the anti-flying ring 11 is located on the inner sealing ferrule 10 and fixedly connected, the outer sealing ferrule 12 is arranged in the valve body 3 and sleeved on the valve rod 2 between the anti-flying ring 11 and the gland 13, the lower end of the outer sealing ferrule 12 extends into the anti-flying ring 11, the upper end of the outer sealing ferrule extends out of the valve body 3 and contacts with the gland 13, and the outer sealing ferrule 12 is fixedly connected with the valve body.
Further, the inner sealing ring 10 comprises a first sealing sleeve 23, a first sealing ring 16 and a second sealing ring 18, the first sealing sleeve 23 is a circular cylinder, two sealing grooves 21 for accommodating the sealing rings are arranged on the outer peripheral surface of the first sealing sleeve 23 of the circular cylinder, and an outer water drainage groove 19 is arranged between the outer peripheral surface of the first sealing sleeve 23 and the two sealing grooves 21; two annular grooves 22 for accommodating sealing rings are formed in the inner peripheral surface of the first sealing sleeve 23, an inner water guide groove 20 is formed between the two annular grooves 22, an outer water guide groove 19 is communicated with the inner water guide groove 20, the two first sealing rings 16 are arranged in two sealing grooves 21 formed in the outer peripheral surface of the first sealing sleeve 23, the first sealing rings 16 are simultaneously contacted with the valve body 3 and the first sealing sleeve 23, the two second sealing rings 18 are arranged in the two annular grooves 22 formed in the inner peripheral surface of the first sealing sleeve 23, and the second sealing rings 18 are simultaneously contacted with the valve rod 2 and the first sealing sleeve 23.
Further, the first seal ring 16 and the second seal ring 18 are O-ring seals.
Further, outer seal ring 12 includes second seal cover 26, third sealing washer 15 and fourth sealing washer 14, second seal cover 26 is for the ring cylinder, the second seal cover 26 outer peripheral surface of ring cylinder sets up one and is used for holding the seal groove 24 of sealing washer, set up one at the inner peripheral surface of second seal cover 26 and be used for holding the ring channel 25 of sealing washer, third sealing washer 15 is arranged in the seal groove 24 that second seal cover 26 outer peripheral surface set up, third sealing washer 15 contacts with valve body 3 and second seal cover 26 simultaneously, fourth sealing washer 14 is arranged in the ring channel 25 that second seal cover 26 inner peripheral surface set up, fourth sealing washer 14 contacts with valve rod 2 and second seal cover 26 simultaneously.
Further, the third seal ring 15 and the fourth seal ring 14 are O-ring seals.
Further, the anti-flying ring 11 is a circular ring body formed by four circular arcs with the same curvature radius.
The present embodiment is manufactured using prior art techniques.
The embodiment is not limited to the present specific embodiment, and it will be apparent to those skilled in the art that simple duplication and modification without inventive work are within the scope of the present embodiment as claimed in the claims.
Claims (8)
1. The utility model provides a water and electricity valve rod sealing device for ball valve, it includes valve body, valve rod and gland wear the dress in the valve body the valve rod, valve rod lower extreme link firmly with the spheroid, the gland is arranged in the valve body outside, cup joint on the valve rod and link firmly its characterized in that with the valve body: the anti-flying valve further comprises a sealing assembly and an anti-flying ring, wherein the sealing assembly is arranged between the valve body and the valve rod and is sleeved on the valve rod, the anti-flying ring is fixedly connected with the valve body in the middle of the sealing assembly, and the top end of the sealing assembly is in contact with the gland and is fixedly connected with the valve body through the gland.
2. A valve stem sealing device for a hydroelectric ball valve as claimed in claim 1 in which: the sealing assembly is provided with an outer water diversion groove, a water diversion hole is formed in the valve body and communicated with the water diversion hole, the water diversion hole is plugged, and when leakage occurs after the sealing assembly of the valve rod is worn, the plug is replaced by a pipe joint, so that the leaked water is led out.
3. A valve stem sealing device for a hydroelectric ball valve as claimed in claim 1 in which: the sealing assembly comprises an inner sealing ferrule and an outer sealing ferrule, the inner sealing ferrule is arranged in the valve body and sleeved on the valve rod, the anti-flying ring is arranged in the valve body and on the inner sealing ferrule, the outer periphery of the anti-flying ring extends into the valve body, the inner periphery of the anti-flying ring is located on the inner sealing ferrule and fixedly connected with the inner sealing ferrule, the outer sealing ferrule is arranged in the valve body and sleeved on the valve rod between the anti-flying ring and the gland, the lower end of the outer sealing ferrule extends into the anti-flying ring, the upper end of the outer sealing ferrule extends out of the valve body and contacts with the gland, and the outer sealing.
4. A valve stem sealing device for a hydroelectric ball valve as claimed in claim 3 in which: the inner sealing ring comprises a first sealing sleeve, a first sealing ring and a second sealing ring, the first sealing sleeve is a circular cylinder, at least one sealing groove for accommodating the sealing ring is formed in the peripheral surface of the first sealing sleeve of the circular cylinder, and an outer water diversion groove is formed in the peripheral surface of the first sealing sleeve and above the sealing groove; the inner peripheral surface of the first sealing sleeve is provided with at least one annular groove for accommodating a sealing ring, an inner water guide groove is arranged above the annular groove, an outer water guide groove is communicated with the inner water guide groove, the first sealing ring is arranged in a sealing groove formed in the outer peripheral surface of the first sealing sleeve, the first sealing ring is simultaneously contacted with the valve body and the first sealing sleeve, the second sealing ring is arranged in the annular groove formed in the inner peripheral surface of the first sealing sleeve, and the second sealing ring is simultaneously contacted with the valve rod and the first sealing sleeve.
5. A valve stem sealing device for a hydroelectric ball valve as claimed in claim 4 in which: the first sealing ring and the second sealing ring are O-shaped sealing rings.
6. A valve stem sealing device for a hydroelectric ball valve as claimed in claim 3 in which: the outer seal ring comprises a second seal sleeve, a third seal ring and a fourth seal ring, the second seal sleeve is a circular cylinder, the outer peripheral surface of the second seal sleeve of the circular cylinder is provided with at least one seal groove for accommodating the seal ring, the inner peripheral surface of the second seal sleeve is provided with at least one annular groove for accommodating the seal ring, the third seal ring is arranged in the seal groove formed in the outer peripheral surface of the second seal sleeve, the third seal ring is simultaneously contacted with the valve body and the second seal sleeve, the fourth seal ring is arranged in the annular groove formed in the inner peripheral surface of the second seal sleeve, and the fourth seal ring is simultaneously contacted with the valve rod and the second seal sleeve.
7. A valve stem sealing device for a hydroelectric ball valve as claimed in claim 6 in which: and the third sealing ring and the fourth sealing ring are O-shaped sealing rings.
8. A valve stem sealing device for a hydroelectric ball valve as claimed in claim 1 in which: the anti-flying ring is a circular ring body formed by a plurality of circular arc bodies with the same curvature radius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022081204.6U CN213598693U (en) | 2020-09-22 | 2020-09-22 | Valve rod sealing device for hydroelectric ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022081204.6U CN213598693U (en) | 2020-09-22 | 2020-09-22 | Valve rod sealing device for hydroelectric ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213598693U true CN213598693U (en) | 2021-07-02 |
Family
ID=76587815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022081204.6U Active CN213598693U (en) | 2020-09-22 | 2020-09-22 | Valve rod sealing device for hydroelectric ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213598693U (en) |
-
2020
- 2020-09-22 CN CN202022081204.6U patent/CN213598693U/en active Active
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