CN214331556U - Eccentric half-ball valve capable of discharging silt - Google Patents
Eccentric half-ball valve capable of discharging silt Download PDFInfo
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- CN214331556U CN214331556U CN202120169043.8U CN202120169043U CN214331556U CN 214331556 U CN214331556 U CN 214331556U CN 202120169043 U CN202120169043 U CN 202120169043U CN 214331556 U CN214331556 U CN 214331556U
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Abstract
The utility model discloses an eccentric half ball valve that can arrange silt has seted up round blowdown annular ring in the bottom of valve body, and the cross-section of blowdown annular ring is the toper, is equipped with in the blowdown annular ring rather than opposite, the cross-section of orientation is conical stifled ring, and when using, the lateral wall of blowdown annular ring is compressed tightly to stifled ring under its gravity and fluidic pressure, realizes closing the blowdown annular ring, but eccentric half ball valve normal use. When sewage is required to be discharged, the driving push rod is pressed inwards by utilizing the matched structural characteristics of the wedge-shaped surface between the bottom surfaces of the push rod and the driving ring, the blocking ring can be jacked upwards, the sewage discharge annular hole is opened, siltation can be discharged from a gap between the blocking ring and the sewage discharge annular hole, the sewage discharge cleaning of the valve cavity is realized, the opening and closing torque of the ball valve is ensured to be unchanged, the valve is sealed reliably without leakage, and the fluid in the flow channel is also ensured not to be polluted and deteriorated.
Description
Technical Field
The utility model relates to a valve field especially relates to the eccentric half ball valve that can arrange the silt.
Background
The ball valve is mainly used for cutting off, distributing and changing the flowing direction of a medium in a pipeline and is widely applied to the fields of petroleum, chemical industry, metallurgy, light textile, food, atomic energy, aviation and the like. The eccentric half ball valve is a novel ball valve type, has certain advantages unique to the structure of the eccentric half ball valve, can be tightly closed only by rotating 90 degrees and very small rotating torque, has no friction on the switch, is sealed and not easy to wear, has small opening and closing torque, and can reduce the specification of a matched actuator.
The eccentric half ball valve in the market is designed and produced according to the standard of GB/T26146-2010 eccentric half ball valve, only has two kinds of typical structures of side-mounted and top-mounted half ball valve in the GB/T26146-2010 eccentric half ball valve standard, and the valve shaft is vertically mounted, and the bottom radian of runner on the valve body is big, and a large amount of impurities can silt up in lower valve shaft department after long-term use, both increase the moment of opening and closing, increase pressure loss, also can damage the shaft end and seal, lead to the valve to leak outward. The water is deteriorated due to the long-term retention and fermentation of impurities in the drinking water system, which affects the sanitation.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that an eccentric half-ball valve that can arrange the silt that can clear up the siltation of deposit in the valve pocket bottom is provided.
In order to solve the technical problem, the utility model discloses the technical scheme who takes is:
eccentric half-ball valve that can arrange silt includes:
the valve comprises a valve body, a valve cover is arranged on a sealed cover at the upper part of the valve body, a valve cavity is formed between the valve cover and the valve body in a surrounding manner, a transverse flow passage is formed in the valve cavity, an upper valve shaft and a lower valve shaft are coaxially arranged on the upper wall and the lower wall of the valve cavity, and the upper valve shaft is sealed and extends out of the valve body and is connected with an actuator for driving the valve shaft to rotate;
the valve core is rotatably arranged in the valve cavity through the upper valve shaft and the lower valve shaft and is provided with a spherical crown-shaped sealing surface; and
the valve seat assembly is fixed at the step of the liquid outlet end of the valve body in an annular sealing manner;
the valve core rotates to enable a sealing surface of the valve core to be in contact with the valve seat assembly for sealing, and a flow channel is sealed;
the method is characterized in that:
a circle of pollution discharge ring hole is formed by taking the valve shaft below the bottom of the valve body as the center, and the section of the pollution discharge ring hole is in a conical shape with the large end upwards;
a blocking ring is movably arranged in the sewage discharge ring hole, the section of the blocking ring is in a conical shape with the small end upwards, the width of the large end of the blocking ring is larger than that of the small end of the sewage discharge ring hole, and a first sealing ring which can be in contact sealing with the side wall of the sewage discharge ring hole is fixed at the inner edge and the outer edge of the bottom of the blocking ring;
an inner ring retaining wall and an outer ring retaining wall extend downwards from the inner edge and the outer edge of the sewage discharge ring hole, and a sewage discharge ring cavity is formed between the inner ring retaining wall and the outer ring retaining wall;
a driving ring is arranged in the sewage discharge ring cavity, a sewage discharge gap is formed between the driving ring and the wall of the sewage discharge ring cavity, the upper end of the driving ring is fixed with the blocking ring, and the lower end of the driving ring is a radially outward wedge-shaped ring surface;
a plurality of push rods are arranged in the sewage discharge annular cavity in the radial direction, the inner end of each push rod is a wedge-shaped surface matched with the shape of the wedge-shaped annular surface, the outer end of each push rod movably extends out of the corresponding sewage discharge annular cavity to form a pressing end, and the push rods are driven to move inwards in the radial direction to drive the blocking rings to move upwards under the action of the wedge-shaped surfaces to open the sewage discharge annular hole.
The technical scheme is that a spring is sleeved on the pressing end of the push rod, a first blocking piece for limiting the spring to move outwards is arranged at the end part of the pressing end, and a second blocking piece for limiting the push rod to move outwards to be separated from the sewage discharge ring cavity is further fixed on the push rod in the radial direction.
The further technical proposal is that when the blocking ring closes the sewage ring hole, the upper end surface and the bottom surface of the valve cavity form a smooth cambered surface.
The further technical scheme is that a sealing ring is detachably arranged at the bottom of the sewage discharge ring cavity, upward flanges are arranged on the inner edge and the outer edge of the sealing ring, and the bottom of the sewage discharge ring cavity can be coated between the inner flange and the outer flange.
The further technical proposal is that the flanging on the outer side of the seal ring is in threaded connection with the outer ring retaining wall.
The technical scheme is that the bottom of the inner ring retaining wall is provided with a circle of outward-expanded groove for accommodating the flanging on the inner side of the seal ring, and a third seal ring is arranged between the groove and the end face of the top of the flanging on the inner side.
The technical scheme is that a second sealing ring is embedded in the inner wall of a hole for the push rod to extend out of the outer ring retaining wall.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
the eccentric half ball valve is characterized in that a circle of sewage discharge annular hole is formed in the bottom of the valve body, the cross section of the sewage discharge annular hole is conical, a blocking ring which is opposite to the sewage discharge annular hole in direction and conical in cross section is arranged in the sewage discharge annular hole, when the eccentric half ball valve is used, the blocking ring presses the side wall of the sewage discharge annular hole under the gravity and the fluid pressure of the blocking ring, the sewage discharge annular hole is closed, and the eccentric half ball valve can be normally used.
After the blocking ring is arranged in the sewage discharge ring hole, a sunken silt storage groove is formed in the inner side and the outer side of the blocking ring, dirt in fluid can be deposited in the silt storage groove, siltation is prevented from being washed away by liquid, and outflow liquid is prevented from being polluted.
When sewage is required to be discharged, the driving push rod is pressed inwards by utilizing the matched structural characteristics of the wedge-shaped surface between the bottom surfaces of the push rod and the driving ring, the blocking ring can be jacked upwards, the sewage discharge annular hole is opened, siltation can be discharged from a gap between the blocking ring and the sewage discharge annular hole, the sewage discharge cleaning of the valve cavity is realized, the opening and closing torque of the ball valve is ensured to be unchanged, the valve is sealed reliably without leakage, and the fluid in the flow channel is also ensured not to be polluted and deteriorated.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic structural view of the eccentric half-ball valve capable of discharging silt;
FIG. 2 is a schematic view of the bottom drainage structure of the eccentric half-ball valve capable of discharging silt.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
As shown in fig. 1 and 2, the eccentric half ball valve capable of discharging sludge is installed on the pipeline and used for opening/closing the pipeline to control the flow of the medium in the pipeline, wherein the medium can be liquid and gas.
The eccentric half-ball valve comprises a valve body 1, a half-ball eccentric valve core 6 and a valve seat assembly 7. The valve cover 2 is arranged on the upper sealed cover of the valve body 1, a valve cavity is formed between the valve cover 2 and the valve body 1 in an enclosing mode, a hanging buckle is connected to the valve cover 2 and used for being matched with external hoisting equipment and the like, and therefore the eccentric half ball valve can be conveyed. A transverse flow passage is formed in the valve cavity, an upper valve shaft 3 and a lower valve shaft 4 are coaxially arranged on the upper wall and the lower wall of the valve cavity, and the upper valve shaft 3 hermetically extends out of the valve body 1 and is connected with an actuator 5 for driving the valve body to rotate.
The valve core 6 is rotatably arranged in the valve cavity through the upper valve shaft 3 and the lower valve shaft 4, and specifically, the lower valve shaft 4 and the valve body 1 can be fixed in a sealing manner and can be rotatably connected with the valve core 6 through a shaft sleeve; the upper valve shaft 3 is rotatably connected with the valve body 1 through a shaft sleeve and is fixed with the valve core 6, and the actuator 5 is an actuating mechanism and can be a manual worm gear transmission device or an automatic worm gear transmission device. The actuator 5 drives the upper valve shaft 3 to rotate, so that the valve core 6 is driven to rotate. The valve element 6 has a sealing surface in the form of a spherical cap. The valve seat assembly 7 is fixed at the step of the liquid outlet end of the valve body 1 in an annular sealing mode, the valve seat assembly 7 comprises a main sealing ring and a valve seat, and the valve core 6 rotates to enable the sealing surface of the valve core to be in contact sealing with the valve seat assembly 7 to seal a flow channel.
In the eccentric half-ball valve capable of discharging silt, a circle of pollution discharge annular ring 101 is arranged at the bottom of the valve body 1 by taking the lower valve shaft 4 as the center, and the section of the pollution discharge annular ring 101 is in a conical shape with the large end upwards. A blocking ring 102 is movably arranged in the sewage discharge annular hole 101, the section of the blocking ring 102 is in a conical shape with the small end upwards, the width of the large end of the blocking ring is larger than that of the small end of the sewage discharge annular hole 101, and a first sealing ring 103 capable of being in contact sealing with the side wall of the sewage discharge annular hole 101 is fixed at the inner edge and the outer edge of the bottom of the blocking ring 102.
An inner ring retaining wall and an outer ring retaining wall extend downwards from the inner edge and the outer edge of the sewage ring hole 101, and a sewage ring cavity 104 is formed between the inner ring retaining wall and the outer ring retaining wall. A driving ring 105 is arranged in the sewage discharge annular cavity 104, a sewage discharge gap is formed between the driving ring 105 and the wall of the sewage discharge annular cavity 104, the upper end of the driving ring 105 is fixed with the blocking ring 102, and the lower end of the driving ring 105 is a wedge-shaped annular surface facing radially outwards.
A plurality of push rods 106 are annularly arranged in the sewage discharge annular cavity 104, the radial inner ends of the push rods 106 are wedge-shaped surfaces matched with the shape of the wedge-shaped annular surface, the radial outer ends movably extend out of the sewage discharge annular cavity 104 to form pressing ends, and the push rods 106 are driven to move inwards in the radial direction to drive the blocking ring 102 to move upwards to open the sewage discharge annular hole 101 under the action of the wedge-shaped surfaces.
The eccentric half ball valve is characterized in that a circle of sewage discharging annular hole 101 is formed in the bottom of a valve body 1, the cross section of the sewage discharging annular hole 101 is conical, a blocking ring 102 which is opposite to the direction of the blocking ring and is conical in cross section is arranged in the sewage discharging annular hole 101, when the eccentric half ball valve is used, the blocking ring 102 compresses the side wall of the sewage discharging annular hole 101 under the gravity and the pressure of fluid, a sealing ring 103 compresses the side wall of the sewage discharging annular hole 101, the closing of the sewage discharging annular hole 101 is achieved, and the eccentric half ball valve can be normally used.
After the blocking ring 102 is arranged in the sewage discharge ring hole 101, a sunken silt storage groove is formed on the inner side and the outer side of the blocking ring 102, dirt in fluid can be deposited in the silt storage groove, the silting is prevented from being washed away by the liquid, and the outflow liquid is ensured not to be polluted.
When sewage is required to be discharged, the driving push rod 106 is pressed inwards by utilizing the matched structural characteristics of the wedge-shaped surface between the push rod 106 and the bottom surface of the driving ring 105, the blocking ring 102 can be jacked upwards, the sewage discharge ring hole 101 is opened, siltation can be discharged from a gap between the blocking ring 102 and the sewage discharge ring hole 101, the sewage discharge cleaning of a valve cavity is realized, the opening and closing torque of the ball valve is ensured to be unchanged, the valve is sealed reliably without leakage, and the fluid in a flow channel is also ensured not to be polluted and deteriorated.
The pressing end of the push rod 106 is sleeved with a spring 107, the end part of the pressing end is provided with a first baffle plate for limiting the outward movement of the spring 107, a second baffle plate for limiting the outward movement of the push rod 106 to be separated from the sewage discharge ring cavity 104 is further fixed on the push rod 106 in the radial direction, and the second baffle plate is arranged in the sewage discharge ring cavity 104. When the push rod 106 is pressed inwards, the spring 107 is compressed to store energy, and after the push rod 106 is released, the push rod 106 is driven to move outwards in a radial direction to reset under the action of the spring 107, so that the blocking ring 102 falls to reset, and the pollution discharge ring hole 101 is closed.
In addition, when the blocking ring 102 closes the sewage ring hole 101, the upper end surface and the bottom surface of the valve cavity form a smooth arc surface, which does not influence the flow of the medium.
In order to avoid pollution of the ground by discharged dirt during pollution discharge, the sealing ring 108 is detachably arranged at the bottom of the pollution discharge annular cavity 104, the inner edge and the outer edge of the sealing ring 108 are respectively provided with an upward flanging, the bottom of the pollution discharge annular cavity 104 can be coated between the inner flanging and the outer flanging, the discharged dirt is stored in the sealing ring 108, a sewage discharge port with a valve can be arranged on the sealing ring 108, and the sealing ring 108 can be detached for cleaning after the pollution discharge is finished.
The flange on the outside of the seal ring 108 is in threaded connection with the outer retaining wall. The bottom of the inner ring baffle wall is provided with a circle of outward-expanded groove for accommodating the flanging on the inner side of the sealing ring 108, a sealing ring III 109 is arranged between the groove and the end surface of the top of the flanging on the inner side, and a sealing ring II is embedded on the inner wall of a hole for the push rod 106 to extend out on the outer ring baffle wall, so that the pollution discharge ring cavity 104 is ensured to be free from leakage.
The above is only the preferred embodiment of the present invention, and any person can make some simple modifications, deformations and equivalent replacements according to the present invention, all fall into the protection scope of the present invention.
Claims (7)
1. Eccentric half-ball valve that can arrange silt includes:
the valve comprises a valve body (1), a valve cover (2) is arranged on the upper portion of the valve body (1) in a sealed mode, a valve cavity is formed between the valve cover (2) and the valve body (1), a transverse flow channel is formed in the valve cavity, an upper valve shaft (3) and a lower valve shaft (4) are coaxially arranged on the upper wall and the lower wall of the valve cavity, and the upper valve shaft (3) hermetically extends out of the valve body (1) and is connected with an actuator (5) for driving the upper valve shaft to rotate;
the valve core (6) is rotatably arranged in the valve cavity through the upper valve shaft (3) and the lower valve shaft (4), and the valve core (6) is provided with a spherical crown-shaped sealing surface; and
the valve seat assembly (7) is fixed at the step of the liquid outlet end of the valve body (1) in an annular sealing manner;
the valve core (6) rotates to enable a sealing surface of the valve core to be in contact with the valve seat assembly (7) for sealing, and a flow channel is closed;
the method is characterized in that:
a circle of pollution discharge annular ring (101) is arranged at the bottom of the valve body (1) by taking the valve shaft (4) as the center, and the section of the pollution discharge annular ring (101) is in a conical shape with the large end upwards;
a blocking ring (102) is movably arranged in the sewage discharge ring hole (101), the section of the blocking ring (102) is in a conical shape with the small end upwards, the width of the large end of the blocking ring is larger than that of the small end of the sewage discharge ring hole (101), and first sealing rings (103) which can be in contact sealing with the side wall of the sewage discharge ring hole (101) are fixed at the inner edge and the outer edge of the bottom of the blocking ring (102);
an inner ring retaining wall and an outer ring retaining wall extend downwards from the inner edge and the outer edge of the sewage discharge ring hole (101), and a sewage discharge ring cavity (104) is formed between the inner ring retaining wall and the outer ring retaining wall;
a driving ring (105) is arranged in the sewage discharge annular cavity (104), a sewage discharge gap is formed between the driving ring (105) and the wall of the sewage discharge annular cavity (104), the upper end of the driving ring (105) is fixed with the blocking ring (102), and the lower end of the driving ring is a radially outward wedge-shaped annular surface;
a plurality of push rods (106) are annularly arranged in the sewage discharge annular cavity (104), the radial inner ends of the push rods (106) are wedge-shaped surfaces matched with the shape of the wedge-shaped annular surface, the radial outer ends of the push rods (106) movably extend out of the sewage discharge annular cavity (104) to form pressing ends, and the push rods (106) are driven to move inwards in the radial direction under the action of the wedge-shaped surfaces to drive the blocking rings (102) to move upwards to open the sewage discharge annular hole (101).
2. The eccentric half-ball valve capable of discharging silt as claimed in claim 1, wherein the pressing end of the push rod (106) is sleeved with a spring (107), the end part of the pressing end is provided with a first baffle plate for limiting the spring (107) to move outwards, and a second baffle plate for limiting the push rod (106) to move outwards to be separated from the blowdown annular cavity (104) is further fixed on the radial direction of the push rod (106).
3. The eccentric half-ball valve capable of discharging the sludge as claimed in claim 1, wherein when the blocking ring (102) closes the sewage ring hole (101), the upper end surface and the bottom surface of the valve cavity form a smooth arc surface.
4. The eccentric half-ball valve capable of discharging silt as claimed in claim 1, wherein the bottom of the blowdown ring cavity (104) is detachably provided with a sealing ring (108), the inner edge and the outer edge of the sealing ring (108) are respectively provided with an upward flange, and the bottom of the blowdown ring cavity (104) can be covered by the inward flange and the outward flange.
5. The eccentric half-ball valve capable of discharging silt as set forth in claim 4, wherein the flange on the upper outer side of the seal ring (108) is in threaded connection with the outer ring retaining wall.
6. The eccentric half-ball valve capable of discharging silt as claimed in claim 5, wherein the bottom of the inner ring retaining wall is provided with a circle of outward-expanding groove for accommodating the flange on the inner side of the seal ring (108), and a seal ring III (109) is arranged between the groove and the top end face of the flange on the inner side.
7. The eccentric half-ball valve capable of discharging silt as claimed in claim 5, wherein a second sealing ring is embedded on the inner wall of the hole for the push rod (106) to extend out of the outer ring retaining wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120169043.8U CN214331556U (en) | 2021-01-21 | 2021-01-21 | Eccentric half-ball valve capable of discharging silt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120169043.8U CN214331556U (en) | 2021-01-21 | 2021-01-21 | Eccentric half-ball valve capable of discharging silt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214331556U true CN214331556U (en) | 2021-10-01 |
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ID=77905958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120169043.8U Active CN214331556U (en) | 2021-01-21 | 2021-01-21 | Eccentric half-ball valve capable of discharging silt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214331556U (en) |
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2021
- 2021-01-21 CN CN202120169043.8U patent/CN214331556U/en active Active
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