CN113251170A - Double-handwheel active sealing ball valve - Google Patents
Double-handwheel active sealing ball valve Download PDFInfo
- Publication number
- CN113251170A CN113251170A CN202110623125.XA CN202110623125A CN113251170A CN 113251170 A CN113251170 A CN 113251170A CN 202110623125 A CN202110623125 A CN 202110623125A CN 113251170 A CN113251170 A CN 113251170A
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- Prior art keywords
- valve
- ball
- gear
- sealing element
- valve body
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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
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
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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
- F16K5/0663—Packings
- F16K5/0689—Packings between housing and plug
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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
- F16K5/08—Details
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
- F16K5/201—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the housing or parts of the housing mechanically pressing the seal against the plug
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention relates to a double-handwheel active sealing ball valve, which comprises a valve body, a valve ball and a hollow end cover, wherein the valve ball is arranged in an inner cavity of the valve body; the valve body is provided with a driving gear and a driven gear which form a gear transmission pair; the driven gear is arranged into an internal thread gear ring structure; the movable sealing element is provided with an external thread structure, and the external thread structure of the movable sealing element and the internal thread structure on the driven gear form a spiral transmission pair; the movable sealing element corresponds to the sealing surface of the valve ball; the driving gear is connected with a sealing element moving hand wheel key on the outer side of the valve body through an end cover; the valve ball is connected with a valve ball rotating hand wheel key on the outer side of the valve body through a transmission shaft. The invention ensures that the sealing performance of the ball valve is stable and reliable, greatly prolongs the service life of the valve and reduces the operation cost of the pipe network control equipment.
Description
Technical Field
The invention belongs to the technical field of valves, and particularly relates to a double-handwheel active sealing ball valve.
Background
In the past, research and development on technologies for prolonging the service life of valves and reducing the operation cost of pipe network control equipment are well valued by various countries. The valve is one of the indispensable equipments of pipe network control system in the fields of industry, agriculture, military affairs, urban construction, etc. in the world, and its usage is wide, and the consumption is large. The valve is one of the largest devices in the operation and maintenance costs of a pipe network due to the short service life of the valve, and the ball valve is one of the main members in the valve family.
At present, most of ball valves in use in the market fix a sealing element on the inner wall of a valve body, and meet the sealing requirement by presetting the contact pressure of the sealing element to a valve clack, wherein the pressure value is unadjustable and difficult to control quantitatively. In practical application, the sealing function of the valve is often disabled due to insufficient contact pressure of the sealing element to the valve flap caused by aging of the sealing material, wear of the sealing element, or accumulated errors in the sizes of parts in the manufacturing process, or … cut off of the sealing element when the valve flap rotates. Furthermore, in the ball valve with a larger drift diameter, the valve is difficult to open and close and even the opening and closing function is ineffective due to overlarge friction resistance of the sealing element to the ball valve or blockage of the inner cavity of the valve by sediments in fluid. These problems shorten the service life of the valve and increase the operating cost of the pipe network control equipment.
Therefore, a new ball valve technical product capable of solving the problems is urgently needed in the valve market, so that the sealing stability of the ball valve is improved, the service life of the ball valve is prolonged, the running cost of a pipe network control device is favorably reduced, and the production safety, energy conservation and environmental protection are favorably realized.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the double-handwheel active sealing ball valve through careful development and repeated tests.
In order to achieve the purpose, the invention adopts the following technical scheme.
A double-handwheel active sealing ball valve comprises a valve body, a valve ball and a hollow end cover, wherein the valve ball is arranged in an inner cavity of the valve body, one end of the hollow end cover is connected with the valve body, and the other end of the hollow end cover is provided with a handle hole and a sealing end face which are connected with a pipeline flange according to an industrial standard; the valve body is provided with a driving gear and a driven gear which form a gear transmission pair; the driven gear is of an internal thread gear ring structure; the movable sealing element is provided with an external thread structure, and the external thread structure of the movable sealing element and the internal thread structure on the driven gear form a spiral transmission pair; the movable sealing element corresponds to the sealing surface of the valve ball; the driving gear is connected with a sealing element moving hand wheel key on the outer side of the valve body through an end cover; the valve ball is connected with a valve ball rotating hand wheel key on the outer side of the valve body through a transmission shaft.
As a preferable scheme of the invention, the movable sealing element comprises a sealing element made of sealing materials and a steel rib, the sealing element is installed at one end of the steel rib, and external threads are arranged on the outer surface of the other end of the steel rib.
In a preferred embodiment of the present invention, the gear transmission pair is a bevel gear transmission pair or a cylindrical gear transmission pair.
As a preferred scheme of the present invention, the gear transmission pair is a driving gear that drives two driven gears simultaneously, the two driven gears are respectively disposed on two sides of the valve ball, and simultaneously, movable sealing members are correspondingly disposed on two sides of the valve ball, the driven gears and the movable sealing members respectively form spiral transmission pairs on two sides of the valve ball, and the transmission directions of the spiral transmission pairs on two sides of the valve ball are opposite.
As a preferable scheme of the invention, the valve body is provided with a flushing inlet and a flushing outlet.
As a preferred scheme of the invention, the gear transmission pair is a driving gear which drives a driven gear, the driven gear is arranged on the side surface of the valve ball, a movable sealing element is arranged on the same side of the valve ball and corresponds to the driven gear, and the movable sealing element and the driven gear form a spiral transmission pair.
The invention has the following beneficial effects:
according to the double-handwheel actively-sealed ball valve provided by the invention, the movable sealing element is arranged, the rotating handwheel of the valve ball controls the rotation of the valve ball, and the moving handwheel of the sealing element controls the movement of the movable sealing element. When the valve is opened or closed, the sealing element moving hand wheel is rotated firstly to enable the movable sealing element to leave the valve ball sealing surface, then the valve ball is rotated to rotate the hand wheel to drive the valve ball to rotate by an angle of 90 degrees, and then the sealing element moving hand wheel is rotated to enable the movable sealing element which leaves the valve ball before to move back and to be tightly pressed on the valve ball sealing surface, so that the sealing requirement is met. Therefore, the movable sealing element can not be worn or cut off due to the rotation of the valve ball, the valve ball can not be rotated to generate frictional resistance from the movable sealing element, and the pressure of the movable sealing element on the sealing surface of the valve ball can not be influenced by the aging of the sealing material or the abrasion of the sealing surface. The sealing effect of the technology of the invention is stable and reliable, when the movable sealing elements are arranged on both sides of the valve ball, the inner cavity of the valve is a full-sealing space no matter the valve is in an open or closed state, and sundries in the inner cavity can be cleaned through the flushing inlet and the flushing outlet so as to prevent the valve ball from being clogged by sediments in fluid.
Compared with the prior art, the sealing performance of the ball valve is stable and reliable, the service life of the valve can be greatly prolonged, and the operation cost of the pipe network control equipment is reduced.
Drawings
In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the following description will be made in detail with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the present technology, are intended for purposes of illustration only and are not intended to limit the present technology.
Fig. 1 is a schematic structural diagram of an embodiment 1 of the active sealing ball valve with two handwheels.
FIG. 2 is a schematic view of the structure of the gear and the screw pair of embodiment 1 of the invention.
Fig. 3 is a schematic structural diagram of an embodiment 2 of the active sealing ball valve with two handwheels.
FIG. 4 is a schematic view of the structure of the gear and the screw pair mechanism of embodiment 2 of the invention.
The labels in the figure are: 1 is a valve ball rotating hand wheel; 2, a sealing element moving hand wheel; 3 is a driving gear; 4 is a driven gear; 5 is a movable sealing element; 6 is a valve ball; 7 is a hollow end cover; 8 is a valve body; a is a flushing inlet; and B is a flushing outlet.
Detailed Description
The present invention is described in more detail below with reference to the accompanying drawings.
Example 1
As shown in fig. 1, a double-handwheel active sealing ball valve comprises a valve body 8, a valve ball 6 and a hollow end cover 7, wherein the valve ball 6 is arranged in an inner cavity of the valve body 8, one end of the hollow end cover 7 is connected with the valve body 8, and the other end of the hollow end cover 7 is provided with a handle hole and a sealing end face which are connected with a pipeline flange according to an industrial standard; the valve body 8 on set up driving gear 3 and driven gear 4, driving gear 3 drive two driven gear 4 simultaneously and constitute the gear drive pair, two driven gear 4 set up respectively in the both sides of valve ball 6, driving gear 3 and driven gear 4 are the conical gear structure, driven gear 4's ring gear inner wall is equipped with the internal thread structure. The movable sealing element 5 and the driven gear 4 are correspondingly arranged on two sides of the valve ball 6, the movable sealing element 5 comprises a sealing element made of sealing materials and a steel rib, the sealing element is installed at one end of the steel rib, the sealing element corresponds to a sealing surface of the valve ball, an external thread matched with the internal thread of the driven gear 4 is arranged on the outer surface of the other end of the steel rib, the two movable sealing elements 5 and the two driven gears 4 respectively form spiral transmission pairs on two sides of the valve ball, and the spiral transmission pairs on the two sides of the valve ball are opposite in transmission direction; the driving gear 3 is connected with a sealing element moving hand wheel 2 key on the outer side of the valve body through an end cover; the valve ball 6 is connected with the valve ball rotating hand wheel 1 key on the outer side of the valve body through a transmission shaft. The valve body 8 is provided with a flushing inlet A and a flushing outlet B.
As shown in fig. 2, the driving gear 3 and two driven gears 4 respectively disposed at two sides of the valve ball 6 form a gear transmission pair, the internal thread structures on the two driven gears 4 respectively form two screw transmission pairs with the external thread structures of the movable sealing member 5 correspondingly disposed at two sides of the valve ball 6, and the transmission directions of the two screw transmission pairs are opposite; the sealing element moving hand wheel 2 is connected with the driving gear 3; the valve ball rotating hand wheel 1 is connected with a valve ball 6. The opening or closing of the valve is divided into three steps: firstly, rotating a sealing element moving hand wheel 2 to enable movable sealing elements 5 on two sides of a valve ball 6 to move back to back and leave sealing surfaces on two sides of the valve ball 6; secondly, rotating the valve ball to rotate the hand wheel 1 to drive the valve ball 6 to rotate by 90 degrees; and thirdly, rotating the sealing element to move the hand wheel 2, so that the movable sealing elements 5 on the two sides of the valve ball 6 move back oppositely and are tightly clamped on the sealing surfaces on the two sides of the valve ball 6, and the sealing requirements are met.
Example 2
As shown in fig. 3, a double-handwheel active sealing ball valve comprises a valve body 8, a valve ball 6 and a hollow end cover 7, wherein the valve ball 6 is arranged in an inner cavity of the valve body 8, one end of the hollow end cover 7 is connected with the valve body 8, the other end of the hollow end cover 7 is provided with a handle hole and a sealing end face which are connected with a pipeline flange according to an industrial standard, and the two hollow end covers 7 can be different or identical in structure and size; the valve body 8 is provided with a driving gear 3, the driving gear 3 drives a driven gear 4 to form a gear transmission pair, the gear transmission pair only has one driven gear 4, the driven gear 4 is arranged on one side of a valve ball 6, the driving gear 3 and the driven gear 4 are both in a conical gear structure, and the inner wall of a gear ring of the driven gear 4 is provided with an internal thread structure; the same side of the valve ball 6 is provided with a movable sealing piece 5 corresponding to the driven gear 4, and the movable sealing piece 5 and the driven gear 4 form a spiral transmission pair. The specific structure of the movable seal 5 is the same as that of embodiment 1.
As shown in fig. 4, the driving gear 3 and a driven gear 4 disposed on the side of the valve ball 6 form a gear transmission pair, and the internal thread structure on the driven gear 4 and the external thread structure of the movable seal 5 correspondingly disposed on the same side of the valve ball 6 form a screw transmission pair; the sealing element moving hand wheel 2 is connected with the driving gear 3; the valve ball rotating hand wheel 1 is connected with a valve ball 6. The opening or closing of the valve is also divided into three steps: firstly, rotating a sealing element moving hand wheel 2 to move a movable sealing element 5 on the side surface of a valve ball 6 to leave a sealing surface of the valve ball 6; secondly, rotating the valve ball to rotate the hand wheel 1 to drive the valve ball 6 to rotate by 90 degrees; and thirdly, rotating the sealing element to move the hand wheel 2, so that the movable sealing element 5 on the side surface of the valve ball 6 moves back and is tightly pressed on the sealing surface of the valve ball 6, and the sealing requirement is met.
When the movable sealing elements are arranged on the two sides of the valve ball, the valve body is provided with the flushing inlet and the flushing outlet for cleaning sundries entering the inner cavity. The installation mode, the connection mode or the setting mode of all the components are common mechanical connection modes, wherein the sliding/rotating fixation is that the components do not fall off under the sliding/rotating state, and the specific structures, models and coefficient indexes of all the components are self-contained technologies, so long as the beneficial effects can be achieved, the implementation is not repeated herein.
Meanwhile, for convenience of description, the terms "front", "rear", "left", "right", "up" and "down" are used in the same direction as the front, rear, left, right, up and down directions of the drawings themselves, but do not limit the structure of the present invention, and the terms "include", "include" or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article or apparatus including a series of elements includes not only those elements but also other elements not explicitly listed or inherent to such process, method, article or apparatus.
The above detailed description of the present invention is only used for illustrating the present invention and is not limited to the technical solutions described in the embodiments of the present invention, and it should be understood by those skilled in the art that the present invention can be modified or substituted equally to achieve the same technical effects; as long as the use requirements are met, the method is within the protection scope of the invention.
Claims (6)
1. A double-handwheel active sealing ball valve comprises a valve body, a valve ball and a hollow end cover, wherein the valve ball is arranged in an inner cavity of the valve body, one end of the hollow end cover is connected with the valve body, and the other end of the hollow end cover is provided with a handle hole and a sealing end face which are connected with a pipeline flange according to an industrial standard; the valve body is provided with a driving gear and a driven gear which form a gear transmission pair; the driven gear is of an internal thread gear ring structure; the movable sealing element is provided with an external thread structure, and the external thread structure of the movable sealing element and the internal thread structure on the driven gear form a spiral transmission pair; the movable sealing element corresponds to the sealing surface of the valve ball; the driving gear is connected with a sealing element moving hand wheel key on the outer side of the valve body through an end cover; the valve ball is connected with a valve ball rotating hand wheel key on the outer side of the valve body through a transmission shaft.
2. The active sealing ball valve with two hand wheels as claimed in claim 1, wherein the movable sealing element comprises a sealing element made of sealing material and a steel rib, the sealing element is installed at one end of the steel rib, and an external thread is arranged on the outer surface of the other end of the steel rib.
3. A double-handwheel active-seal ball valve as claimed in claim 1, wherein the gear transmission pair is provided as a conical gear transmission pair or as a cylindrical gear transmission pair.
4. A double-handwheel active sealing ball valve as claimed in claim 1 or 3, wherein the gear transmission pair is a driving gear driving two driven gears simultaneously, the two driven gears are respectively disposed on two sides of the ball valve, and a movable sealing member is correspondingly disposed on two sides of the ball valve, the driven gears and the movable sealing member respectively form screw transmission pairs on two sides of the ball valve, and the screw transmission pairs on two sides of the ball valve are opposite in transmission direction.
5. A double-handwheel active-seal ball valve as claimed in claim 4, wherein the valve body is provided with a flushing inlet and a flushing outlet.
6. A double-handwheel actively-sealed ball valve as claimed in claim 1 or 3, wherein the gear transmission pair is a driving gear driving a driven gear, the driven gear is disposed on the side of the ball valve, the same side of the ball valve is provided with a movable sealing member corresponding to the driven gear, the movable sealing member and the driven member
The moving gears form a spiral transmission pair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110623125.XA CN113251170A (en) | 2021-06-04 | 2021-06-04 | Double-handwheel active sealing ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110623125.XA CN113251170A (en) | 2021-06-04 | 2021-06-04 | Double-handwheel active sealing ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113251170A true CN113251170A (en) | 2021-08-13 |
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ID=77186455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110623125.XA Pending CN113251170A (en) | 2021-06-04 | 2021-06-04 | Double-handwheel active sealing ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113251170A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115355330A (en) * | 2022-10-21 | 2022-11-18 | 泰伦机械(苏州)有限公司 | Efficient and sealed ball valve for petroleum conveying pipeline |
-
2021
- 2021-06-04 CN CN202110623125.XA patent/CN113251170A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115355330A (en) * | 2022-10-21 | 2022-11-18 | 泰伦机械(苏州)有限公司 | Efficient and sealed ball valve for petroleum conveying pipeline |
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