CN108679257B - Valve-opening abrasion-free double-eccentric electric control ball valve - Google Patents
Valve-opening abrasion-free double-eccentric electric control ball valve Download PDFInfo
- Publication number
- CN108679257B CN108679257B CN201810846099.5A CN201810846099A CN108679257B CN 108679257 B CN108679257 B CN 108679257B CN 201810846099 A CN201810846099 A CN 201810846099A CN 108679257 B CN108679257 B CN 108679257B
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- China
- Prior art keywords
- valve
- eccentric
- clack
- circular
- round table
- Prior art date
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- 238000007789 sealing Methods 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000005299 abrasion Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0605—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0647—Spindles or actuating means
Abstract
The invention discloses a valve-opening abrasion-free double-eccentric electric control ball valve, and belongs to the technical field of intelligent instrument valves. The valve-opening abrasion-free double-eccentric electric control ball valve comprises a valve body, wherein a reduction gearbox is arranged on the valve body, a valve seat sealing ring is arranged at an outlet of the valve body, and the valve body further comprises a valve rod and a valve clack which is connected with the valve rod in a matched manner; the reduction gearbox is connected with the valve clack through a valve rod; the lower end of the valve rod is provided with a round table which is eccentric relative to the axial center line of the valve rod; the top plane of the valve clack is provided with a limit groove matched with the round table. The valve rod is provided with the double eccentric structure, and is matched with the limit groove, so that the valve can be opened without abrasion; the valve has simple structure, and the whole valve part can be made of plastic materials, so that the processing technology is greatly simplified; the valve clack is of a petal-shaped structure, the inside of the valve clack is hollow, and the loss of raw materials is reduced; the production cost of the valve is reduced by improving the materials and the structure.
Description
Technical Field
The invention relates to the technical field of intelligent instrument valves, in particular to a valve-opening wear-free double-eccentric electric control ball valve.
Background
In the intelligent instrument trade, like fields such as intelligent water gauge, gas table, all there is the friction between valve clack and the disk seat sealing member when switching the valve in current automatically controlled ball valve, has increased the energy consumption of switching the valve, and along with the switching valve number of times increases, easily causes the wearing and tearing of disk seat sealing member moreover to lead to the leakage of medium. In the case of long-term valve closing, if there is friction between the valve flap and the valve seat seal, the valve may not be opened, and even if the valve is opened, a large amount of energy is consumed.
In the prior art, the friction-free track ball valve can realize valve opening without abrasion, but has a complex structure, increases the difficulty of processing and manufacturing, and has high production cost.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides a technical scheme of the valve-opening abrasion-free double-eccentric electric control ball valve, which avoids abrasion between a valve clack and a valve seat sealing ring in the valve-opening process, prolongs the service life of the valve, and has simple processing technology and low production cost.
The valve-opening abrasion-free double-eccentric electric control ball valve comprises a valve body, wherein a reduction gearbox is arranged on the valve body, a valve seat sealing ring is arranged at an outlet of the valve body, and the valve body further comprises a valve rod and a valve clack which is connected with the valve rod in a matched manner; the reduction gearbox is connected with the valve clack through a valve rod; the lower end of the valve rod is provided with a round table which is eccentric relative to the axial center line of the valve rod; the top plane of the valve clack is provided with a limit groove matched with the round table.
Further, the round platform comprises a first round platform, a second round platform and an eccentric round platform, wherein the first round platform and the second round platform are respectively arranged on two sides of the lower end face of the valve rod, and are symmetrical by taking the axial center line of the valve rod as the center, and the eccentric round platform is eccentric relative to the axial center line of the valve rod.
Further, the limiting groove comprises a first limiting groove matched with the first round table, a second limiting groove matched with the second round table and a central limiting groove matched with the eccentric round table, and the limiting groove is arranged on a circular boss at the top end of the valve clack; the first limiting groove and the second limiting groove are fan-shaped grooves with the angle of 90 degrees, the center of the circular boss is used as the center to be symmetrical, the center limiting groove is a waist-shaped groove, and the waist-shaped groove is arranged at the center of the circular boss.
Further, the eccentric circular table is of a double eccentric structure relative to the axial center line of the valve rod, is eccentric relative to the center perpendicular line of the circle centers of the first circular table and the second circular table, and is eccentric relative to the connecting line of the circle centers of the first circular table and the second circular table.
Further, the eccentric distance of the eccentric circular table is 0.5mm relative to the perpendicular bisector of the circle centers of the first circular table and the second circular table, and the eccentric distance of the eccentric circular table is 0.5mm relative to the connecting line of the circle centers of the first circular table and the second circular table.
Further, the eccentric round table is higher than the first round table and the second round table, and the corresponding central limiting groove is deeper than the first limiting groove and the second limiting groove.
Furthermore, the valve clack and the valve rod are made of plastic materials and are of an integrated structure.
Furthermore, the valve clack is in a petal sphere shape, and the valve clack is hollow.
Furthermore, the valve rod is provided with at least two sealing grooves, and is in sealing connection with the valve body through a sealing ring.
The valve rod is provided with the double eccentric structure, and is matched with the limit groove, so that the valve can be opened without abrasion; the valve has simple structure, and the whole valve part can be made of plastic materials, so that the processing technology is greatly simplified; the valve clack is of a petal-shaped structure, the inside of the valve clack is hollow, and the loss of raw materials is reduced; the production cost of the valve is reduced by improving the materials and the structure.
Drawings
FIG. 1 is a front cross-sectional view of the present invention in a valve-closed state;
FIG. 2 is a cross-sectional view of the present invention in a valve-closed state;
FIG. 3 is a cross-sectional view of the present invention after 90 degrees of valve stem lost motion;
FIG. 4 is a cross-sectional view of the present invention with the valve flap rotated 90 to open the valve in place;
FIG. 5 is a cross-sectional view of a valve stem of the present invention;
FIG. 6 is a bottom view of the valve stem of the present invention;
FIG. 7 is a cross-sectional view of a valve flap of the present invention;
FIG. 8 is a top view of a valve flap of the present invention;
wherein: 1-a valve clack; 2-a valve seat sealing ring; 3-a valve body; 4-a valve rod; 5-a reduction gearbox; 6-round bench; 7-a circular boss; 8-a limit groove; 9-a support shaft; 10-supporting shaft holes; 11-a second limit groove; 12-a central limit groove; 13-a first limit groove; 14-valve stem axial centerline; 15-eccentric round table; 16-a first round table; 17-sealing the groove; 18-a second round table; 19-center plumb line; connecting the circle centers of the two circles; 21-circle center of the circular boss.
Detailed Description
The technical scheme of the invention is further described below with reference to the accompanying drawings.
The utility model provides a valve-opening wear-free double-eccentric electric control ball valve, as shown in fig. 1, includes valve body 3, is equipped with reducing gear box 5 on the valve body 3, and reducing gear box 5 passes through valve rod 4 and is connected with valve clack 1 to drive valve clack 1 and rotate, valve body 3 export direction is equipped with disk seat sealing washer 2, and when the valve was closed, valve clack 1 compressed tightly disk seat sealing washer 2. The parts of the valve-opening wear-free double-eccentric electric control ball valve can be made of plastic materials and can be of an integrated structure. As shown in fig. 7 and 8, the valve clack 1 is in a sphere shape, the valve clack 1 is hollow, the bottom is provided with a supporting shaft hole 10, and the supporting shaft hole is sleeved outside the supporting shaft 9. The valve rod 4 is provided with two sealing grooves 17 which are in sealing connection with the valve body 3 through sealing rings to prevent medium in the valve from leaking.
As shown in fig. 5 and 6, the lower end of the valve rod 4 is provided with a circular table 6, which comprises a first circular table 16, a second circular table 18 and an eccentric circular table 15, wherein the first circular table 16 and the second circular table 18 are centrally symmetrical with each other through a valve rod axial center line 14, and are respectively arranged at two sides of the bottom surface of the valve rod, when the valve rod 4 rotates, the valve clack 1 is driven to rotate through the first circular table 16 and the second circular table 18, the eccentric circular table 15 is of a double eccentric structure relative to the valve rod axial center line 14, as shown in fig. 6, the eccentric circular table 15 is eccentric relative to a center bisector 19 and a center connecting line 20 of the first circular table 16 and the second circular table 18, and the distance between the center of the eccentric circular table 15 and the center bisector 19 and the center connecting line 20 is 0.5mm.
As shown in fig. 7 and fig. 8, the top of the valve clack 1 is provided with a circular boss 7, and the circular boss 7 is provided with a limit groove 8, including a first limit groove 13 matched with a first round table 16 and a second limit groove 11 matched with a second round table 18. The first limiting groove 13 and the second limiting groove 11 are of fan-shaped structures, the angles are equal to 90 degrees, and the centers of the circular bosses 21 are symmetrical. The center of the circle 21 of the circular boss is provided with a central limiting groove 12 matched with the eccentric circular truncated cone 15, the central limiting groove 12 is a waist-shaped groove, the height of the eccentric circular truncated cone 15 is higher than that of the first circular truncated cone 16 and the second circular truncated cone 18, and the depth of the corresponding central limiting groove 12 is deeper than that of the first limiting groove 13 and the second limiting groove 11.
As shown in fig. 2, in the valve closing state, the eccentric truncated cone 15 at the bottom of the valve rod 4 compresses the valve clack 1 towards the outlet direction of the valve due to the eccentric action, the valve clack 1 compresses the valve seat sealing ring 2 under the extrusion action of the valve rod 4, and the eccentric truncated cone 15 at the bottom of the valve rod 4 is eccentric by 0.5mm, so that the valve clack 1 has a compression amount of 0.5mm on the valve seat sealing ring 2, and meanwhile, a medium in the valve has a pressure on the valve clack 1, so that the compression amount of the valve clack 1 is larger than 0.5mm, and the valve can be ensured to be in a tightly closed state.
When the valve is opened, as shown in fig. 3, the valve rod 4 idles anticlockwise for 90 degrees, at this time, the valve clack 1 is far away from the valve seat sealing ring 2 because the eccentric circular table 15 is of a double eccentric structure, and the first circular table 16 and the second circular table 18 rotate for 90 degrees in the sector grooves. When the valve rod 4 rotates 90 degrees anticlockwise again, the valve clack 1 is driven to rotate through the first round table 16 and the second round table 18, and as the valve clack 1 does not contact the valve seat sealing ring 2, friction loss is not generated between the valve clack 1 and the valve seat sealing ring 2 in the rotating process of the valve clack 1, the valve clack 1 rotates 90 degrees without friction, and valve opening is completed in place, as shown in fig. 4.
When the valve is closed, the valve rod 4 idles 90 degrees clockwise, the valve clack 1 does not contact the valve seat sealing ring 2, and the first round platform 16 and the second round platform 18 rotate 90 degrees in the fan-shaped groove. When the valve rod 4 continues to rotate 90 degrees clockwise, the valve clack 1 is driven to rotate through the first round table 16 and the second round table 18, the valve clack 1 is gradually closed and presses the valve seat sealing ring 2, and only when the valve closing is about to be in place, the valve clack 1 and the valve seat sealing ring 2 have instant friction.
When the valve is opened or closed, the valve rod 4 rotates 180 degrees, the front 90 degrees are idle, the rear 90 degrees drive the valve clack 1 to rotate together, and the valve closing action and the valve opening action are reciprocal.
Claims (6)
1. The utility model provides a valve-opening wear-free double-eccentric electric control ball valve, includes valve clack (1), valve body (3), valve rod (4), is equipped with reducing gear box (5) on valve body (3), and valve seat sealing washer (2) are equipped with in valve body (3) exit, and valve clack (1) and valve rod (4) cooperation are connected; the reduction gearbox (5) is connected with the valve rod (4); the method is characterized in that: the lower end of the valve rod (4) is provided with a round table (6), and the round table (6) is double eccentric relative to the axial center line (14) of the valve rod; a limit groove (8) matched with the round table (6) is formed in the top plane of the valve clack (1); the round table (6) comprises a first round table (16), a second round table (18) and an eccentric round table (15), wherein the first round table (16) and the second round table (18) are respectively arranged on two sides of the lower end face of the valve rod (4) and are symmetrical with each other in the center of the axial center line (14) of the valve rod, and the eccentric round table (15) is eccentric relative to the axial center line (14) of the valve rod; the limiting groove (8) comprises a first limiting groove (13) matched with the first round table (16), a second limiting groove (11) matched with the second round table (18) and a central limiting groove (12) matched with the eccentric round table (15), and the limiting groove (8) is arranged on the circular boss (7) at the top end of the valve clack (1); the first limiting groove (13) and the second limiting groove (11) are fan-shaped grooves with the angle of 90 degrees, the center of the circular boss is symmetrical with the center of the circle (21), the center limiting groove (12) is a waist-shaped groove, and the center limiting groove is arranged at the center of the circular boss (21); the double eccentric is as follows: the eccentric circular table (15) is eccentric relative to a center perpendicular line (19) of the circle centers of the first circular table (16) and the second circular table (18), and eccentric relative to a connecting line (20) of the circle centers of the first circular table (16) and the second circular table (18).
2. The valve-opening abrasion-free double-eccentric electric control ball valve is characterized in that the eccentric distance between the eccentric circular table (15) and a center perpendicular (19) of the circle centers of the first circular table (16) and the second circular table (18) is 0.5mm, and the eccentric distance between the eccentric circular table (15) and a connecting line (20) of the circle centers of the first circular table (16) and the second circular table (18) is 0.5mm.
3. The valve-opening abrasion-free double-eccentric electric control ball valve according to claim 1, wherein the eccentric circular table (15) is higher than the first circular table (16) and the second circular table (18), and the corresponding central limit groove (12) is deeper than the first limit groove (13) and the second limit groove (11).
4. The valve-opening abrasion-free double-eccentric electric control ball valve is characterized in that the valve clack (1) and the valve rod (4) are made of plastic materials and are of an integrated structure.
5. The valve-opening wear-free double-eccentric electric control ball valve is characterized in that the valve clack (1) is in a petal shape, and the interior of the valve clack (1) is hollow.
6. The valve-opening wear-free double-eccentric electric control ball valve according to claim 1, wherein the valve rod (4) is provided with at least two sealing grooves (17) and is in sealing connection with the valve body (3) through sealing rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810846099.5A CN108679257B (en) | 2018-07-27 | 2018-07-27 | Valve-opening abrasion-free double-eccentric electric control ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810846099.5A CN108679257B (en) | 2018-07-27 | 2018-07-27 | Valve-opening abrasion-free double-eccentric electric control ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108679257A CN108679257A (en) | 2018-10-19 |
| CN108679257B true CN108679257B (en) | 2024-02-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810846099.5A Active CN108679257B (en) | 2018-07-27 | 2018-07-27 | Valve-opening abrasion-free double-eccentric electric control ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108679257B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1073247A (en) * | 1991-12-14 | 1993-06-16 | 中国人民解放军后勤工程学院 | Swing ball low torque ball valve |
| CN101191560A (en) * | 2007-03-21 | 2008-06-04 | 杭州先锋电子技术有限公司 | Eccentric electric ball valve |
| CN102322536A (en) * | 2011-09-05 | 2012-01-18 | 上海鸿润科技有限公司 | Valve core assembly and valve using same |
| CN202884094U (en) * | 2012-10-16 | 2013-04-17 | 重庆西美仪器仪表有限公司 | Friction-free ball valve based on gear transmission |
| CN103453209A (en) * | 2012-05-31 | 2013-12-18 | 天津职业技术师范大学 | Ball valve structure based on cam control and ball valve |
| CN208619746U (en) * | 2018-07-27 | 2019-03-19 | 杭州先锋电子技术股份有限公司 | A kind of valve opening is without the double eccentric electric-controlled ball valves of abrasion |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9328827B2 (en) * | 2013-11-19 | 2016-05-03 | Larry Rayner Russell | Quarter turn ball valve with lift-off seats |
-
2018
- 2018-07-27 CN CN201810846099.5A patent/CN108679257B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1073247A (en) * | 1991-12-14 | 1993-06-16 | 中国人民解放军后勤工程学院 | Swing ball low torque ball valve |
| CN101191560A (en) * | 2007-03-21 | 2008-06-04 | 杭州先锋电子技术有限公司 | Eccentric electric ball valve |
| CN102322536A (en) * | 2011-09-05 | 2012-01-18 | 上海鸿润科技有限公司 | Valve core assembly and valve using same |
| CN103453209A (en) * | 2012-05-31 | 2013-12-18 | 天津职业技术师范大学 | Ball valve structure based on cam control and ball valve |
| CN202884094U (en) * | 2012-10-16 | 2013-04-17 | 重庆西美仪器仪表有限公司 | Friction-free ball valve based on gear transmission |
| CN208619746U (en) * | 2018-07-27 | 2019-03-19 | 杭州先锋电子技术股份有限公司 | A kind of valve opening is without the double eccentric electric-controlled ball valves of abrasion |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108679257A (en) | 2018-10-19 |
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