CN112943967B - Hard sealing ball valve - Google Patents

Hard sealing ball valve Download PDF

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Publication number
CN112943967B
CN112943967B CN202110440086.XA CN202110440086A CN112943967B CN 112943967 B CN112943967 B CN 112943967B CN 202110440086 A CN202110440086 A CN 202110440086A CN 112943967 B CN112943967 B CN 112943967B
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CN
China
Prior art keywords
filling bag
extrusion
filling
valve
sealing element
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Active
Application number
CN202110440086.XA
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Chinese (zh)
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CN112943967A (en
Inventor
陈占淼
项彩华
陈展
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wenzhou Antong Valve Co ltd
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Wenzhou Antong Valve Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wenzhou Antong Valve Co ltd filed Critical Wenzhou Antong Valve Co ltd
Priority to CN202110440086.XA priority Critical patent/CN112943967B/en
Publication of CN112943967A publication Critical patent/CN112943967A/en
Application granted granted Critical
Publication of CN112943967B publication Critical patent/CN112943967B/en
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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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/78—Combined heat-treatments not provided for above
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/36—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for balls; for rollers
    • 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
    • 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
    • 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
    • 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
    • F16K5/205—Sealing effected by the flowing medium

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Taps Or Cocks (AREA)

Abstract

The invention discloses a hard sealing ball valve, which belongs to the technical field of valves and comprises a valve body, a ball body and a valve, wherein filling assemblies are arranged on two sides in the valve body, each group of filling assemblies comprises a sealing element, an extrusion element, a first filling bag and a second filling bag, the sealing element is connected with the valve body in a sliding mode, one end of the sealing element is provided with a control sheet, the second filling bag is arranged on the right side of the control sheet, filling liquid is arranged in the first filling bag and the second filling bag, the first filling bag and the second filling bag are communicated with each other, the extrusion element is sleeved on the first filling bag and the second filling bag, and the extrusion element is connected with the valve in a rotating mode. The invention extrudes the filling liquid in the first filling bag into the second filling bag, the second filling bag expands at the moment, the control sheet is pushed to drive the sealing element to move in the valve body, and the ball body does not contact with the sealing element in the rotating process at the moment, so that the friction between the sealing element and the ball body is reduced, and the service life of the sealing element is prolonged.

Description

Hard sealing ball valve
Technical Field
The invention relates to the technical field of valves, in particular to a hard sealing ball valve.
Background
At present, the main feature of ball valves in pipelines is to cut off, distribute and change the flow direction of media. The hydraulic resistance is small, and the structure is simple. The flow passage of the ball valve is flat and smooth, medium is not easy to deposit, and the ball valve is not only suitable for passing through conventional medium, but also suitable for passing through medium with strong corrosiveness. Therefore, the method is widely applied to petroleum, chemical industry and daily life of people.
The utility model patent with publication number CN210661506U discloses a hard sealing ball valve with adjustable flow. Comprises a valve ball, a valve body, a valve rod, an upper sealing cover, a lower sealing cover and a gate valve component. A through groove is arranged on the valve ball. A mounting groove is arranged in the valve ball and communicated with the through groove. And a positioning groove is arranged below the mounting groove. The valve rod penetrates through the upper sealing cover and is connected with the top end of the valve ball. A gate valve assembly is arranged in the valve ball and comprises a rotary adjusting rod and an adjusting flashboard. The rotary adjusting rod is arranged in the valve rod. One end of the rotary adjusting rod extends into the adjusting flashboard and is fixedly arranged in the adjusting flashboard.
Above-mentioned utility model through adopting the gate valve subassembly of installing in the valve ball, effectual control liquid flow, improved the regulation precision of ball valve, nevertheless because the seal valve is fixed in the valve body, when the valve ball pivoted, must can produce frictional contact with the seal valve, in long-time use, must exert an influence to the sealed effect of seal valve.
Disclosure of Invention
The invention aims to provide a hard sealing ball valve to solve the technical problems that in the prior art, as a sealing valve is fixed in a valve body, when the valve ball rotates, the sealing valve is in friction contact with the sealing valve, and the sealing effect of the sealing valve is influenced in a long-time use process.
The invention provides a hard sealing ball valve, which comprises a valve body, a ball body arranged in the valve body and a valve used for controlling the rotation of the ball body, the two sides in the valve body are respectively provided with a filling component, each group of filling components comprises a sealing element, an extrusion element, a first filling bag and a second filling bag, the sealing element is connected with the valve body in a sliding way, one end of the sealing element is contacted with the ball body, the other end of the sealing element is provided with a control sheet, the first filling bag is arranged on the left side of the control sheet, the second filling bag is arranged on the right side of the control sheet, filling liquid is arranged in the first filling bag and the second filling bag, and a connecting piece for communicating the first filling bag and the second filling bag is arranged between the first filling bag and the second filling bag, the extrusion piece is sleeved on the first filling bag and the second filling bag, and the extrusion piece is rotatably connected with the valve.
Further, the connecting piece is a metal tube, and the two metal tubes penetrate through the control sheet.
Furthermore, two first extrusion blocks are arranged on the left side inside the extrusion part and are positioned on the left side of the first filling bag, and the two first extrusion blocks are arranged in a central symmetry manner; the inside right side of extruded piece is equipped with two second extrusion pieces, and two the second extrusion piece is located the right side that the bag was filled to the second, two the second extrusion piece is central symmetry setting.
Furthermore, the first extrusion block and the second extrusion block are both provided with buffering slopes.
Furthermore, a connecting line between the two first extrusion blocks is perpendicular to a connecting line between the two second extrusion blocks.
Furthermore, an elastic metal ring is arranged between the first filling bag and the two first extrusion blocks, an elastic metal ring is also arranged between the second filling bag and the two second extrusion blocks, and the two elastic metal rings are fixedly connected with the valve body.
Furthermore, a first bevel gear is arranged at the joint of the valve and the ball body, a second bevel gear is arranged on each extrusion piece, and the two second bevel gears are meshed with the first bevel gears.
The manufacturing process of the sphere comprises the following steps:
s1: forging an electroslag remelting ingot blank with the diameter of 320mm, cogging until the diameter is 200mm, polishing and finishing, and blanking after flaw detection;
s2: heating the blank to 1032-;
s3: processing and flaw detection inspection are carried out on the obtained blank;
s4: solution treatment: heating the sample to 930-1120 ℃, preserving the heat for 5 hours, and then cooling the sample to 24-41 ℃ in air;
s5: and (3) stabilizing treatment: heating the sample to 920-;
s6: and (3) age hardening treatment: heating the sample to 740-750 ℃, preserving heat for 10h, and finally cooling in air to 10-20 ℃.
Compared with the prior art, the invention has the beneficial effects that:
(1) when the sealing element is used, the rotating valve drives the ball body to rotate and simultaneously drives the extrusion piece to rotate, when the extrusion piece rotates, filling liquid in the first filling bag is extruded into the second filling bag, at the moment, the second filling bag expands, the control piece is pushed to drive the sealing element to move in the valve body, at the moment, the ball body cannot be contacted with the sealing element in the rotating process, when the valve and the ball body continue to rotate to ninety degrees, the extrusion piece also rotates along with the valve and the ball body, at the moment, the extrusion piece extrudes the filling liquid in the second filling bag back into the first filling bag, the resetting of the sealing element is completed, the friction between the sealing element and the ball body is reduced, and the service life of the sealing element is prolonged.
(2) According to the invention, the metal tubes not only enable the first filling bag and the second filling bag to be mutually communicated, but also enable the two metal tubes to penetrate through the control sheet on the sealing element, so that the movement of the sealing element is limited, and the sealing element is prevented from being deviated in the movement process to influence the sealing property of the sealing element.
(3) When the first filling bag and the second filling bag are continuously extruded by the first extrusion block and the second extrusion block with the buffer slopes, the stress area of the first filling bag or the second filling bag can be increased, so that the friction during extrusion is reduced, the connecting line between the two first extrusion blocks is perpendicular to the connecting line between the two second extrusion blocks, when the first filling bag and the second filling bag are filled with filling liquid for exchange, enough expansion spaces can be reserved for the first filling bag and the second filling bag by the first extrusion block and the second extrusion block which are arranged in a staggered mode, and the service lives of the first filling bag and the second filling bag are prolonged.
(4) When the first extrusion block or the second extrusion block extrudes the first filling bag or the second filling bag, friction caused by extrusion work can be reduced through the elastic metal rings between the first extrusion block and the first filling bag and between the second extrusion block and the second filling bag, and the service lives of the first filling bag and the second filling bag are further prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a cross-sectional view of the present invention in a first operating condition;
FIG. 4 is a cross-sectional view of the present invention in a second operational state;
FIG. 5 is a third cross-sectional view of the present invention in a working condition;
FIG. 6 is an exploded view of the first angle fill assembly of the present invention;
FIG. 7 is an exploded view of a second angle fill assembly of the present invention;
FIG. 8 is a schematic illustration of the combined construction of the first filled bladder and the second filled bladder of the present invention.
Reference numerals:
1. a valve body; 2. a sphere; 3. a valve; 4. a fill assembly; 41. a seal member; 42. an extrusion; 43. a first fill bladder; 44. a second fill bladder; 45. a control sheet; 46. a metal tube; 47. a first extrusion block; 48. a second extrusion block; 49. an elastic metal ring; 410. a first bevel gear; 411. a second bevel gear.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.
The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 8, a hard sealing ball valve is provided according to an embodiment of the present invention, which includes a valve body 1, a ball body 2 disposed in the valve body 1, and a valve 3 for controlling the rotation of the ball body 2, wherein both sides of the interior of the valve body 1 are provided with filling assemblies 4, each of the filling assemblies 4 includes a sealing member 41, an extrusion member 42, a first filling bag 43, and a second filling bag 44, the sealing member 41 is slidably connected to the valve body 1, one end of the sealing member 41 contacts with the ball body 2, the other end of the sealing member 41 is provided with a control plate 45, the first filling bag 43 is disposed on the left side of the control plate 45, the second filling bag 44 is disposed on the right side of the control plate 45, filling liquid is disposed in the first filling bag 43 and the second filling bag 44, and a connecting member for communicating the first filling bag 43 and the second filling bag 44 is disposed between the first filling bag 43 and the second filling bag 44, the extrusion piece 42 is sleeved on the first filling bag 43 and the second filling bag 44, the extrusion piece 42 is rotationally connected with the valve 3, the valve 3 drives the ball body 2 to rotate and simultaneously drives the extrusion piece 42 to rotate, when the pressing member 42 is rotated, the filling fluid in the first filling bladder 43 is pressed into the second filling bladder 44, at which time the second filling bladder 44 is expanded, the sealing element 41 is driven to move in the valve body 1 by pushing the control sheet 45, at this time, the ball 2 does not contact with the sealing element 41 in the rotating process, when the valve 3 and the ball 2 rotate to ninety degrees, the pressing piece 42 will rotate along with the valve, and at this time, the pressing piece 42 will press the filling fluid in the second filling bag 44 back into the first filling bag 43, so as to complete the resetting of the sealing element 41, reduce the friction between the sealing element 41 and the ball 2, and prolong the service life of the sealing element 41.
Preferably, the connecting member is a metal tube 46, and two metal tubes 46 penetrate the control plate 45, which is advantageous in that the metal tube 46 not only interconnects the first filling bag 43 and the second filling bag 44, but also limits the movement of the sealing member 41 by penetrating the two metal tubes 46 through the control plate 45 on the sealing member 41.
Preferably, two first extrusion blocks 47 are arranged on the left side of the interior of the extrusion member 42, the two first extrusion blocks 47 are positioned on the left side of the first filling bag 43, and the two first extrusion blocks 47 are arranged in a central symmetry manner; two second extrusion blocks 48 are arranged on the right side of the interior of the extrusion part 42, the two second extrusion blocks 48 are positioned on the right side of the second filling bag 44, and the two second extrusion blocks 48 are arranged in a central symmetry mode.
Preferably, the first squeezing block 47 and the second squeezing block 48 are both provided with a buffering gradient, and the buffering gradient plays an excessive role in connection between the first squeezing block 47 and the squeezing block 48 and the squeezing member 42, so that friction caused by squeezing operation is reduced when the first squeezing block 47 or the second squeezing block 48 squeezes the first filling bag 43 or the second filling bag 44.
Preferably, the connecting line between the two first squeezing blocks 47 is perpendicular to the connecting line between the two second squeezing blocks 48, which is advantageous in that, when the first filling bag 43 and the second filling bag 44 are continuously squeezed by the first squeezing block 47 and the second squeezing block 48 with the buffering gradient, the force-bearing area of the first filling bag 43 or the second filling bag 44 can be increased, so as to reduce friction during squeezing, while the connecting line between the two first squeezing blocks 47 is perpendicular to the connecting line between the two second squeezing blocks 48, so that when the first filling bag 43 and the second filling bag 44 exchange filling fluid, the first squeezing block 47 and the second squeezing block 48 which are arranged alternately can reserve enough expansion space for the first filling bag 43 and the second filling bag 44.
Preferably, an elastic metal ring 49 is arranged between the first filling bag 43 and the two first pressing blocks 47, an elastic metal ring 49 is also arranged between the second filling bag 44 and the two second pressing blocks 48, and both the elastic metal rings 49 are fixedly connected with the valve body 1, which is beneficial in that when the first pressing block 47 or the second pressing block 48 presses the first filling bag 43 or the second filling bag 44, the friction caused by the pressing work can be reduced, and the service life of the first filling bag 43 and the second filling bag 44 is prolonged.
Preferably, a first bevel gear 410 is provided at the junction of the valve 3 and the ball 2, a second bevel gear 411 is provided on each of the extrusion members 42, and both the second bevel gears 411 are engaged with the first bevel gear 410.
The manufacturing process of the sphere comprises the following steps:
s1: forging an electroslag remelting ingot blank with the diameter of 320mm, cogging until the diameter is 200mm, polishing and finishing, and blanking after flaw detection;
s2: heating the blank to 1032-;
s3: processing and flaw detection inspection are carried out on the obtained blank;
s4: solution treatment: heating the sample to 930-1120 ℃, preserving the heat for 5 hours, and then cooling the sample to 24-41 ℃ in air;
s5: and (3) stabilizing treatment: heating the sample to 920-;
s6: and (3) age hardening treatment: heating the sample to 740-750 ℃, preserving heat for 10h, and finally cooling in air to 10-20 ℃.
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 the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (3)

1. The utility model provides a hard seal ball valve, includes valve body (1), sets up spheroid (2) in valve body (1) and is used for controlling spheroid (2) pivoted valve (3), its characterized in that: the inner two sides of the valve body (1) are respectively provided with a filling assembly (4), each group of filling assemblies (4) comprises a sealing element (41), an extrusion element (42), a first filling bag (43) and a second filling bag (44), the sealing element (41) is in sliding connection with the valve body (1), one end of the sealing element (41) is in contact with the ball body (2), the other end of the sealing element (41) is provided with a control sheet (45), the first filling bag (43) is arranged on the left side of the control sheet (45), the second filling bag (44) is arranged on the right side of the control sheet (45), filling liquid is arranged in the first filling bag (43) and the second filling bag (44), a connecting piece for communicating the first filling bag (43) and the second filling bag (44) is arranged between the first filling bag (43) and the second filling bag (44), and the extrusion element (42) is sleeved on the first filling bag (43) and the second filling bag (44), and the pressure piece (42) is rotationally connected with the valve (3); two first extrusion blocks (47) are arranged on the left side of the interior of the extrusion part (42), the two first extrusion blocks (47) are located on the left side of the first filling bag (43), and the two first extrusion blocks (47) are arranged in a central symmetry mode; two second extrusion blocks (48) are arranged on the right side in the extrusion part (42), the two second extrusion blocks (48) are positioned on the right side of the second filling bag (44), and the two second extrusion blocks (48) are arranged in a central symmetry manner; the first extrusion block (47) and the second extrusion block (48) are both provided with buffer gradients; the connecting line between the two first extrusion blocks (47) is vertical to the connecting line between the two second extrusion blocks (48); the connecting part of the valve (3) and the ball body (2) is provided with a first bevel gear (410), each extrusion piece (42) is provided with a second bevel gear (411), and the two second bevel gears (411) are meshed with the first bevel gear (410).
2. A hard seal ball valve in accordance with claim 1 wherein: the connecting piece is a metal tube (46), and the two metal tubes (46) penetrate through the control sheet (45).
3. A hard seal ball valve in accordance with claim 1 wherein: an elastic metal ring (49) is arranged between the first filling bag (43) and the two first extrusion blocks (47), an elastic metal ring (49) is also arranged between the second filling bag (44) and the two second extrusion blocks (48), and the two elastic metal rings (49) are fixedly connected with the valve body (1).
CN202110440086.XA 2021-04-23 2021-04-23 Hard sealing ball valve Active CN112943967B (en)

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Application Number Priority Date Filing Date Title
CN202110440086.XA CN112943967B (en) 2021-04-23 2021-04-23 Hard sealing ball valve

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Application Number Priority Date Filing Date Title
CN202110440086.XA CN112943967B (en) 2021-04-23 2021-04-23 Hard sealing ball valve

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Publication Number Publication Date
CN112943967A CN112943967A (en) 2021-06-11
CN112943967B true CN112943967B (en) 2021-11-23

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101520097A (en) * 2009-03-24 2009-09-02 张宗铎 Hard-sealing ball valve
CN108895175A (en) * 2018-08-30 2018-11-27 昆山维萨阀门有限公司 A kind of metal hard-sealing ball valve
CN210265967U (en) * 2019-06-03 2020-04-07 苏州博雷特流体控制有限公司 Top-mounted ball valve capable of adjusting pretightening force
CN112610714A (en) * 2020-12-18 2021-04-06 博纳斯威阀门股份有限公司 Double-valve-body side-mounted global valve

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20092115A1 (en) * 2009-12-01 2011-06-02 Bonetti Cesare Spa METAL GASKET FOR BALL VALVES AND BALL VALVE INCLUDING SUCH GASKET

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101520097A (en) * 2009-03-24 2009-09-02 张宗铎 Hard-sealing ball valve
CN108895175A (en) * 2018-08-30 2018-11-27 昆山维萨阀门有限公司 A kind of metal hard-sealing ball valve
CN210265967U (en) * 2019-06-03 2020-04-07 苏州博雷特流体控制有限公司 Top-mounted ball valve capable of adjusting pretightening force
CN112610714A (en) * 2020-12-18 2021-04-06 博纳斯威阀门股份有限公司 Double-valve-body side-mounted global valve

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