CN210716080U - Soft sealing ball valve - Google Patents
Soft sealing ball valve Download PDFInfo
- Publication number
- CN210716080U CN210716080U CN201921342506.5U CN201921342506U CN210716080U CN 210716080 U CN210716080 U CN 210716080U CN 201921342506 U CN201921342506 U CN 201921342506U CN 210716080 U CN210716080 U CN 210716080U
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- Prior art keywords
- ring
- hole
- valve
- sealing
- valve rod
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- Expired - Fee Related
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- 238000007789 sealing Methods 0.000 title claims abstract description 50
- 238000012856 packing Methods 0.000 claims description 24
- 238000007599 discharging Methods 0.000 claims description 11
- 210000004907 gland Anatomy 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims 1
- 230000007774 longterm Effects 0.000 abstract description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to a soft sealing ball valve, which comprises a right valve body, a left valve body, a valve seat component, a valve rod, a ball core, a thrust gasket, a sealing component and an O-shaped ring; the left valve body is detachably arranged on the left side of the right valve body, and the sealing assembly is sleeved on the valve rod and is arranged inside the rotary block; the lower end of the valve rod is fixed on the upper side of the ball core, and the valve seat assembly is arranged inside the right valve body and the left valve body; the utility model discloses install the valve rod inside in order to save the valve gap at right valve body to reduce the volume and reduce the material, utilized the bounce of second dish spring to realize the automatic long-term sealed of sealing washer simultaneously, broken away from the influence of temperature to sealing performance in the certain limit, enlarged application scope.
Description
Technical Field
The utility model relates to a soft seal ball valve.
Background
The ball valve is mainly used as a common component for cutting, distributing and changing the flow direction of a medium in a pipeline, and can be divided into a hard seal ball valve and a soft seal ball valve according to a sealing mode; most of the existing soft seal ball valves are provided with valve covers to accommodate valve rods, so that the size is large, the material consumption is high, the sealing performance is greatly influenced by the temperature, the application range is small, and the valve rods are to be further improved.
SUMMERY OF THE UTILITY MODEL
To the current situation of above-mentioned prior art, the utility model aims to solve the technical problem that a soft sealing ball valve has been provided to save the valve gap in order to reduce the volume and reduce the material consumption to realize the automatic long-term sealed of sealing washer, enlarged application scope.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: a soft seal ball valve comprises a right valve body, a left valve body, a valve seat assembly, a valve rod, a ball core, a thrust gasket, a seal assembly and an O-shaped ring; the ball valve is characterized in that a rotary block is formed outwards on the upper side of the right valve body, the valve rod is vertically and rotatably arranged inside the rotary block, and the sealing assembly is sleeved on the valve rod and arranged inside the rotary block; the lower end of the valve rod is fixed on the upper side of the ball core, and the valve seat assembly is arranged inside the right valve body and the left valve body; the thrust gasket and the O-shaped ring are sleeved on the valve rod; a first counter bore is formed in the upper side of the rotary block, a first through hole is formed in the center of the bottom surface of the first counter bore, the lower end of the first through hole is communicated with the valve cavity, a check ring is formed outwards on the inner wall of the first through hole, and the thrust washer is attached to the lower side of the check ring; the valve rod is vertically arranged in the first counter bore and the first through hole, a positioning ring distributed annularly is formed outside the valve rod, the positioning ring is arranged on the lower side of the thrust gasket, grooves distributed annularly are formed on the outer side of the positioning ring, the O-shaped ring is sleeved and embedded in the grooves, and the outer side of the O-shaped ring is attached to the inner wall of the first through hole; the sealing assembly comprises a packing combination, a packing gland, a first disc spring, a packing pressure plate and an end cover; the packing combination is sleeved on the valve rod and arranged above the inner part of the first through hole, the packing pressing plate is sleeved on the valve rod and arranged in the first counter bore, two first disc springs are sleeved on the valve rod, and the two first disc springs are arranged between the packing pressing plate and the packing combination; the end cover is detachably fixed at the upper end of the rotary block; the lower side of the end cover is attached to the upper side of the packing pressing plate, and the upper end of the valve rod penetrates through the end cover upwards and extends out of the upper outer side of the end cover.
Preferably, a first step hole is formed in the left side of the right valve body, the inner end of the first step hole is communicated with the valve cavity, correspondingly, a sleeving column is outwards formed on the right side of the left valve body, and the sleeving column is inserted into the first step hole.
Preferably, a second step hole is formed in the center of the inner end of the sleeving column, a feeding hole is formed in the center of the bottom surface of the second step hole, a third step hole is formed in the inner wall of the right side of the valve cavity, a discharging hole is formed in the center of the bottom surface of the third step hole, the discharging hole and the feeding hole are arranged concentrically, a material passing hole is formed in the ball core, and the material passing hole, the discharging hole and the feeding hole are matched with each other.
Preferably, the valve seat assembly comprises a support ring, a soft seat ring, a sealing ring, an adjusting gasket and a second disc spring; the third step hole and the second step hole are all embedded with a supporting ring, the supporting ring is embedded with a soft seat ring, the outer end of the soft seat ring is sleeved with a sealing ring and an adjusting gasket, the adjusting gasket is arranged on the outer side of the sealing ring, and the second disc spring is arranged in the second step hole and arranged on the outer side of the supporting ring.
Preferably, the inner side of the supporting ring is provided with a first inclined plane, the first inclined plane is provided with circumferentially distributed notch grooves, the soft seat ring is sleeved and embedded in the notch grooves, the inner side of the soft seat ring is outwards provided with circumferentially distributed sealing surfaces, the sealing surfaces are attached to the outer side of the ball core, and the outer side of the soft seat ring is provided with circumferentially distributed first step grooves.
Preferably, a second step groove distributed annularly is formed in the outer end of the support ring, the sealing ring is sleeved outside the second step groove, a second inclined plane distributed annularly is formed on the bottom surface of the second step groove, correspondingly, a third inclined plane distributed annularly is formed on the inner side of the sealing ring, the third inclined plane is attached to the second inclined plane, and the outer side edge of the second disc spring is pressed on the outer side of the adjusting gasket.
Preferably, the outer end edge of the support ring is further formed with a fourth slope distributed annularly.
Compared with the prior art, the utility model has the advantages of: the utility model discloses install the valve rod inside in order to save the valve gap at right valve body to reduce the volume and reduce the material, utilized the bounce of second dish spring to realize the automatic long-term sealed of sealing washer simultaneously, broken away from the influence of temperature to sealing performance in the certain limit, enlarged application scope.
Drawings
FIG. 1 is a cross-sectional view of the present invention;
fig. 2 is a partial enlarged structural view of the present invention at a.
Detailed Description
As shown in fig. 1-2, a soft seal ball valve comprises a right valve body 1, a left valve body 2, a valve seat assembly, a valve rod 3, a ball core 4, a thrust gasket 5, a seal assembly and an O-ring 10; the left valve body 2 is detachably arranged on the left side of the right valve body 1, a valve cavity 102 is arranged inside the right valve body 1, the ball core 7 is arranged in the valve cavity 102, a rotary block 105 is formed outwards on the upper side of the right valve body 1, the valve rod 3 is vertically and rotatably arranged inside the rotary block 105, and the sealing assembly is sleeved on the valve rod 3 and arranged inside the rotary block 105; the lower end of the valve rod 3 is fixed on the upper side of the ball core 7, and the valve seat assembly is arranged inside the right valve body 1 and the left valve body 2; the thrust washer 5 and the O-shaped ring 10 are sleeved on the valve rod 3; a first counter bore 106 is formed in the upper side of the rotary block 105, a first through hole 107 is formed in the center of the bottom surface of the first counter bore 106, the lower end of the first through hole 107 is communicated with the valve cavity 102, a retainer ring 108 is formed on the inner wall of the first through hole 107 outwards, and the thrust washer 5 is attached to the lower side of the retainer ring 108; the valve rod 3 is vertically arranged in the first counter bore 106 and the first through hole 107, a positioning ring 31 distributed annularly is formed outside the valve rod 3, the positioning ring 31 is arranged on the lower side of the thrust washer 5, a groove 32 distributed annularly is formed on the outer side of the positioning ring 31, the O-shaped ring 10 is sleeved and embedded in the groove 32, and the outer side of the O-shaped ring 10 is attached to the inner wall of the first through hole 107; a first step hole 101 is formed in the left side of the right valve body 1, the inner end of the first step hole 101 is communicated with the valve cavity 102, correspondingly, a sleeve column 201 is formed outwards on the right side of the left valve body 2, the sleeve column 201 is inserted into the first step hole 101, a second step hole 202 is formed in the center of the inner end of the sleeve column 201, a feeding hole 203 is formed in the center of the bottom surface of the second step hole 202, a third step hole 103 is formed in the inner wall of the right side of the valve cavity 102, a discharging hole 104 is formed in the center of the bottom surface of the third step hole 103, the discharging hole 104 and the feeding hole 203 are arranged concentrically, a material passing hole 41 is formed in the ball core 4, and the material passing hole 41 is matched with the discharging hole 104 and the feeding hole 203; the sealing assembly comprises a packing combination 6, a packing gland 7, a first disc spring 8, a packing pressure plate 9 and an end cover 16; the packing combination 6 is sleeved on the valve rod 3 and is arranged above the inner part of the first through hole 107, the packing pressing plate 9 is sleeved on the valve rod 3 and is arranged in the first counter bore 106, two first disc springs 8 are sleeved on the valve rod 3, and the two first disc springs 8 are arranged between the packing pressing plate 9 and the packing combination 6; the end cover 16 is detachably fixed at the upper end of the rotary block 105; the lower side of the end cover 16 is attached to the upper side of the packing press plate 9, and the upper end of the valve rod 3 upwards passes through the end cover 16 and extends out of the upper outer side of the end cover 16; the valve seat assembly comprises a support ring 11, a soft seat ring 12, a sealing ring 13, an adjusting gasket 14 and a second disc spring 15; a support ring 11 is embedded in each of the third stepped hole 103 and the second stepped hole 202, a soft seat ring 12 is embedded in each of the inner sides of the two support rings 11, a seal ring 13 and an adjusting gasket 14 are sleeved and embedded in the outer sides of the outer ends of the two soft seat rings 12, the adjusting gasket 14 is arranged on the outer side of the seal ring 13, and a second disc spring 15 is arranged in the second stepped hole 202 and arranged on the outer side of the support ring 11; a first inclined plane 111 is formed on the inner side of the support ring 11, a circumferentially distributed gap groove 112 is formed on the first inclined plane 111, the soft seat ring 12 is sleeved and embedded in the gap groove 112, a circumferentially distributed sealing surface 121 is formed on the inner side of the soft seat ring 12 outwards, the sealing surface 121 is attached to the outer side of the ball core 4, a circumferentially distributed first step groove 122 is formed on the outer side of the soft seat ring 12, a circumferentially distributed second step groove 113 is formed on the outer side of the support ring 11, the sealing ring 13 is sleeved outside the second step groove 113, a circumferentially distributed second inclined plane 115 is formed on the bottom surface of the second step groove 113, correspondingly, a circumferentially distributed third inclined plane 131 is formed on the inner side of the sealing ring 13, the third inclined plane 131 is attached to the second inclined plane 115, the outer edge of the second disc spring 15 is pressed against the outer side of the adjusting gasket 14, and a circumferentially distributed fourth inclined plane 114 is formed on the outer edge of the support ring 11 to prevent the inner side of the second disc spring 15 from contacting with the outer side of the support ring 11 to prevent the outer side of the second disc spring And (5) deforming.
When in use: connecting a material pipe into the feeding hole 203 and inputting the material, then rotating the valve rod 3 to rotate in the sealing assembly, and further driving the ball core 4 to rotate, so that two ends of the material passing hole 41 are respectively communicated with the feeding hole 203 and the discharging hole 104, and further the material flows through the valve seat assembly and the material passing hole 41 and is finally discharged from the discharging hole 104; the thrust gasket 5 can prevent the valve rod 3 from moving up and down, and the O-shaped ring 10 and the sealing assembly play a sealing role; the rebound force generated by the second disc spring 15 pushes the adjusting gasket 14 located in the second stepped hole 202 inwards, so as to extrude the sealing ring 13 located in the second stepped hole 202 inwards, the third inclined surface 131 on the sealing ring 13 expands outwards along the second inclined surface 115, and the outer circumferential surface of the sealing ring 13 is always attached to the inner wall of the second stepped hole 202 to realize sealing; meanwhile, the rebound force generated by the second disc spring 15 also pushes the support ring 11 in the second stepped hole 202 inwards, so that the sealing surface 121 on the soft seat ring 12 is pressed on the outer side surface of the ball core 4; similarly, the valve rod 3 is rotated reversely to drive the material passing hole 41 on the ball core 4 to leave the material inlet 203 and the material outlet 104 respectively, and then the shutoff can be realized.
The ball valve is mainly used as a common component for cutting, distributing and changing the flow direction of a medium in a pipeline, and can be divided into a hard seal ball valve and a soft seal ball valve according to a sealing mode; most of the existing soft seal ball valves are provided with valve covers to accommodate valve rods, so that the size is large, the material consumption is high, the sealing performance is greatly influenced by temperature, and the application range is small; the utility model discloses install the valve rod inside in order to save the valve gap at right valve body to reduce the volume and reduce the material, utilized the bounce of second dish spring to realize the automatic long-term sealed of sealing washer simultaneously, broken away from the influence of temperature to sealing performance in the certain limit, enlarged application scope.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in the embodiments and modifications thereof may be made, and equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (7)
1. A soft seal ball valve comprises a right valve body, a left valve body, a valve seat assembly, a valve rod, a ball core, a thrust gasket, a seal assembly and an O-shaped ring; the ball valve is characterized in that a rotary block is formed outwards on the upper side of the right valve body, the valve rod is vertically and rotatably arranged inside the rotary block, and the sealing assembly is sleeved on the valve rod and arranged inside the rotary block; the lower end of the valve rod is fixed on the upper side of the ball core, and the valve seat assembly is arranged inside the right valve body and the left valve body; the thrust gasket and the O-shaped ring are sleeved on the valve rod; a first counter bore is formed in the upper side of the rotary block, a first through hole is formed in the center of the bottom surface of the first counter bore, the lower end of the first through hole is communicated with the valve cavity, a check ring is formed outwards on the inner wall of the first through hole, and the thrust washer is attached to the lower side of the check ring; the valve rod is vertically arranged in the first counter bore and the first through hole, a positioning ring distributed annularly is formed outside the valve rod, the positioning ring is arranged on the lower side of the thrust gasket, grooves distributed annularly are formed on the outer side of the positioning ring, the O-shaped ring is sleeved and embedded in the grooves, and the outer side of the O-shaped ring is attached to the inner wall of the first through hole; the sealing assembly comprises a packing combination, a packing gland, a first disc spring, a packing pressure plate and an end cover; the packing combination is sleeved on the valve rod and arranged above the inner part of the first through hole, the packing pressing plate is sleeved on the valve rod and arranged in the first counter bore, two first disc springs are sleeved on the valve rod, and the two first disc springs are arranged between the packing pressing plate and the packing combination; the end cover is detachably fixed at the upper end of the rotary block; the lower side of the end cover is attached to the upper side of the packing pressing plate, and the upper end of the valve rod penetrates through the end cover upwards and extends out of the upper outer side of the end cover.
2. The soft sealing ball valve as claimed in claim 1, wherein a first stepped hole is formed at a left side of the right valve body, an inner end of the first stepped hole is communicated with the valve cavity, and correspondingly, a sleeving column is formed outwardly at a right side of the left valve body and inserted into the first stepped hole.
3. The soft sealing ball valve of claim 2, wherein a second step hole is formed in the center of the inner end of the sleeving column, a feeding hole is formed in the center of the bottom surface of the second step hole, a third step hole is formed in the inner wall of the right side of the valve cavity, a discharging hole is formed in the center of the bottom surface of the third step hole, the discharging hole and the feeding hole are concentrically arranged, a material passing hole is formed in the ball core, and the material passing hole, the discharging hole and the feeding hole are matched with each other.
4. The soft seal ball valve of claim 3, wherein the seat assembly comprises a support ring, a soft seat ring, a seal ring, a spacer, and a second disc spring; the third step hole and the second step hole are all embedded with a supporting ring, the supporting ring is embedded with a soft seat ring, the outer end of the soft seat ring is sleeved with a sealing ring and an adjusting gasket, the adjusting gasket is arranged on the outer side of the sealing ring, and the second disc spring is arranged in the second step hole and arranged on the outer side of the supporting ring.
5. The soft sealing ball valve according to claim 4, wherein the inner side of the support ring is provided with a first inclined surface, the first inclined surface is provided with circumferentially distributed notched grooves, the soft seat ring is sleeved and embedded in the notched grooves, the inner side of the soft seat ring is outwardly provided with circumferentially distributed sealing surfaces, the sealing surfaces are attached to the outer side of the ball core, and the outer side of the soft seat ring is provided with circumferentially distributed first step grooves.
6. The soft seal ball valve according to claim 4, wherein a second step groove is formed in an outer side of an outer end of the support ring, the second step groove is circumferentially distributed, the seal ring is sleeved outside the second step groove, a second inclined surface is formed on a bottom surface of the second step groove, the second inclined surface is circumferentially distributed, correspondingly, a third inclined surface is formed on an inner side of the seal ring, the third inclined surface is attached to the second inclined surface, and an outer edge of the second disc spring is pressed against an outer side of the adjusting gasket.
7. The soft seal ball valve as claimed in claim 4, wherein the outer end edge of the support ring is further formed with a fourth slope circumferentially distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921342506.5U CN210716080U (en) | 2019-08-19 | 2019-08-19 | Soft sealing ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921342506.5U CN210716080U (en) | 2019-08-19 | 2019-08-19 | Soft sealing ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210716080U true CN210716080U (en) | 2020-06-09 |
Family
ID=70931213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921342506.5U Expired - Fee Related CN210716080U (en) | 2019-08-19 | 2019-08-19 | Soft sealing ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210716080U (en) |
-
2019
- 2019-08-19 CN CN201921342506.5U patent/CN210716080U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200609 |