CN107940016B - Sealing ball valve - Google Patents
Sealing ball valve Download PDFInfo
- Publication number
- CN107940016B CN107940016B CN201711341174.4A CN201711341174A CN107940016B CN 107940016 B CN107940016 B CN 107940016B CN 201711341174 A CN201711341174 A CN 201711341174A CN 107940016 B CN107940016 B CN 107940016B
- Authority
- CN
- China
- Prior art keywords
- lip
- sealing
- annular
- ring
- groove
- Prior art date
- Legal status (The legal status 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 status listed.)
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Links
- 238000007789 sealing Methods 0.000 title claims abstract description 111
- 230000006835 compression Effects 0.000 claims abstract description 16
- 238000007906 compression Methods 0.000 claims abstract description 16
- 238000009434 installation Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 17
- 238000005299 abrasion Methods 0.000 abstract description 5
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 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
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3208—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip provided with tension elements, e.g. elastic rings
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3232—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
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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
Abstract
The invention provides a sealing ball valve which comprises a valve body, a valve core ball, a sealing ring and a compression ring, wherein the valve core ball is arranged in a valve cavity of the valve body, the sealing ring is arranged between the valve core ball and the valve body, and the compression ring is arranged in a first hole of the valve body and is abutted against a flange of a first framework of the sealing ring. According to the sealing ball valve provided by the invention, the sealing effect of the sealing ring can be enhanced by arranging the multiple lips of the sealing ring, the first framework is tightly pressed against the first lip by the inclined plate under the action of the compression ring, the sealing effect of the sealing ring can be enhanced, the sealing performance between the sealing ring and the valve core ball can be enhanced by arranging the spiral spring, in addition, the gap between the sealing ring and the valve core ball caused by abrasion can be compensated by tightly pressing the inclined plate against the first lip and the elasticity of the spiral spring, the sealing performance between the sealing ring and the valve core ball is maintained, and the purpose of prolonging the service life of the ball valve is further achieved.
Description
Technical Field
The invention relates to the field of valves, in particular to a sealing ball valve.
Background
Ball valves are defined in standard GB/T21465-2008 valve terminology: the opening and closing part (ball) is driven by the valve rod and rotates around the axis of the ball valve.
Chinese patent 201610040710.6 discloses a ball valve, this ball valve for guaranteeing the sealed effect of ball valve, set up the second seal groove in the valve body, install the second sealing washer in the second seal groove and the surface butt of case ball, set up the third seal groove in the disk seat, install the third sealing washer in the third seal groove and the surface butt of case ball, through the cooperation between second sealing washer, third sealing washer and the case ball to the sealed effect of ball valve has been guaranteed. However, in the process of rotating the valve core ball, abrasion can occur between the sealing ring and the valve core ball, after long-time use, a gap can be formed between the sealing ring and the valve core ball, a medium leaks through the gap, the sealing performance of the ball valve is invalid, and the service life of the ball valve is further shortened.
In summary, how to enhance the tightness of the ball valve and delay the failure of the sealing ring is a problem that needs to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a sealing ball valve, which solves the problem of leakage of the ball valve caused by abrasion of a valve core ball and a sealing ring.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a sealing ball valve, includes valve body and case ball, the case ball sets up in the valve pocket of valve body, still include sealing washer and clamp ring, the sealing washer sets up the case ball with between the valve body, the clamp ring sets up in the first hole of valve body, and support and press on the flange of the first skeleton of sealing washer.
Further, the first framework is inlaid in a first framework mounting hole of the sealing ring, the first framework further comprises an inclined plate and a vertical plate, an included angle A between the inclined plate and the axis of the first framework is 30-44 degrees, the vertical plate is connected to the inclined plate, the flange is connected to the edge of the vertical plate, the inclined plate is inlaid in a first annular hole of the first framework mounting hole and is close to a first lip of the sealing ring, the vertical plate is inlaid in a second annular hole of the first framework mounting hole, the tail end of the flange is inlaid in a third annular hole of the first framework mounting hole, a first groove surface of an annular groove part of the compression ring is abutted to an inner inclined surface of the front end of the flange, and a first lip surface of the first lip is adhered to the surface of a valve core ball of the valve core ball.
Still further, still be equipped with second lip, third lip and fourth lip on the sealing washer, the second lip keeps out in the junction of the inner wall of the second hole of valve body with the bottom surface of second hole, the third lip keeps out in the junction of the inner wall of the annular counter bore of valve body with the bottom surface of annular counter bore, the fourth lip keeps out in the junction of the outer fringe inner wall of the annular counter bore of valve body with the bottom surface of annular counter bore, first skeleton mounting hole begins to extend to from first lip department until second lip department.
Further, the front end portion of the flange is accommodated in the annular groove portion, and the second groove surface of the annular groove portion is spaced apart from the outer periphery of the flange.
Still further, still be equipped with interior annular, outer annular, U type groove and U type annular on the sealing washer, interior annular sets up on the inner wall of the body of sealing washer, and be located first lip with between the third lip, outer annular sets up on the outer wall of the body of sealing washer, and be located between second lip and the fourth lip, U type groove sets up on the right-hand member face of the body of sealing washer, and be located the below of third lip, and be linked together with the spring mounting groove of third lip, U type annular sets up on the right-hand member face of the body of sealing washer, and be located the top of fourth lip, the body of sealing washer is held in the third hole of valve body.
Still further, install the spring in the spring mounting groove, the part periphery of spring is circumference extend in the U type groove, the U type groove runs through the right-hand member face of the body of sealing washer, the U type annular runs through the right-hand member face of the body of sealing washer.
Still further, be equipped with a plurality of round platform portion on the right-hand member face of sealing washer body, round platform portion sets up between the third lip with the fourth lip, round platform portion to the spring hole of valve body extends, the front end of round platform portion is kept out on the coil spring in the spring hole.
Still further, still be equipped with the second skeleton mounting hole on the sealing washer, the second skeleton mounting hole is located near round platform portion, install the second skeleton in the second skeleton mounting hole.
Still further, the second skeleton mounting hole includes fourth annular hole and fifth annular hole, fourth annular hole with fifth annular hole is linked together, the fifth annular hole extends to the terminal of round platform portion.
Still further, the second skeleton includes pipe portion and annular disk portion, the pipe portion with annular disk portion is connected, the pipe portion is inlayed in the fourth annular hole, annular disk portion is inlayed in the fifth annular hole.
As can be seen from the technical scheme, the invention has the following beneficial effects:
according to the invention, the sealing ring is provided with the first framework, the first framework is extruded to the right side under the action of the compression ring, so that the sealing effect of contact sealing between the second lip and the valve body can be improved, the sealing effect of contact sealing between the third lip and the valve body is improved, and the sealing effect of contact sealing between the fourth lip and the valve body is improved. The arrangement of multiple lips of the sealing ring can enhance the sealing effect of the sealing ring, the first lip surface of the first lip is attached to the surface of the valve core ball to realize sealing, the second lip is abutted against the joint of the inner wall of the second hole of the valve body and the bottom surface of the second hole to realize sealing, the third lip is abutted against the joint of the inner edge inner wall of the annular counter bore of the valve body and the bottom surface of the annular counter bore to realize sealing, and the fourth lip is abutted against the joint of the outer edge inner wall of the annular counter bore of the valve body and the bottom surface of the annular counter bore to realize sealing; the arrangement of the spiral spring can enhance the sealing effect between the first lip and the valve core ball, compensate the gap between the first lip and the valve core ball caused by abrasion, maintain the sealing effect between the first lip and the valve core ball, and further achieve the purpose of prolonging the service life of the ball valve. The invention is described in further detail below with reference to the drawings and the detailed description.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic diagram of the overall structure of the seal ring of the present invention.
Fig. 3 is a schematic structural view of an elastomer of the seal ring of the present invention.
Fig. 4 is a schematic structural view of a first skeleton according to the present invention.
Fig. 5 is a schematic structural view of a second skeleton according to the present invention.
Fig. 6 is a schematic structural view of the compression ring of the present invention.
Fig. 7 is a schematic view of a partial structure of a valve body according to the present invention.
Reference numerals illustrate: the valve body 20, the first bore 21, the second bore 22, the third bore 23, the threaded bore 24, the annular counterbore 25, the outer rim inner wall 251, the inner rim inner wall 252, the spring bore 26, the fourth bore 27, the second connecting tube 30, the seal ring 40, the inner annular groove 40a, the outer annular groove 52b, the u-shaped groove 40c, the u-shaped annular groove 40d, the first lip 41a, the second lip 42, the third lip 43, the spring mounting groove 43a, the fourth lip 44, the boss 45, the first cage mounting hole 46, the first annular bore 46a, the second annular bore 46b, the third annular bore 46c, the second cage mounting hole 47, the fourth annular bore 47a, the fifth annular bore 47b, the clamp ring 50, the screw through hole 51, the annular groove 52, the first groove 52a, the second groove 52b, the spring 60, the first cage 70, the inclined plate 70a, the riser 70b, the flange 70c, the second cage 80, the pipe 81, the annular disc 90.
Detailed Description
Embodiments of the invention are described in detail below with reference to the attached drawings, but the invention can be implemented in a number of different ways, which are defined and covered by the claims.
The invention will be further described with reference to fig. 1 to 7, wherein the sealing ball valve as shown in fig. 1 comprises a valve body 20 and a valve core ball 10, a fourth hole 27 is arranged at the right end of the valve body 20, a second connecting pipe 30 is connected to the fourth hole 27, the valve core ball 10 is arranged in a valve cavity 28 of the valve body 20, the sealing ball valve further comprises a sealing ring 40 and a compression ring 50, the sealing ring 40 is arranged between the valve core ball 10 and the valve body 20, the compression ring 50 is arranged in a first hole 21 of the valve body 20 and is abutted against a flange 70c of a first framework 70 of the sealing ring 40, the structure is also arranged on one side of a valve seat of the ball valve, and the sealing ring 40, the valve core ball 10, the valve body 20, the valve seat and the compression ring 50 are mutually matched, so that medium leakage is effectively prevented, and the sealing effect of the ball valve is ensured.
In this embodiment, as shown in fig. 1, 2, 3, 4, 6, and 7, the first frame 70 is fitted into the first frame mounting hole 46 of the seal ring 40, the first frame 70 includes an inclined plate 70a and a vertical plate 70b, an angle a between the inclined plate 70a and an axis of the first frame 70 is 30 ° to 44 °, the vertical plate 70b is connected to the inclined plate 70a, the flange 70c is connected to an edge of the vertical plate 70b, the inclined plate 70a is fitted into the first annular hole 46a of the first frame mounting hole 46 and is close to the first lip 41 of the seal ring 40, the vertical plate 70b is fitted into the second annular hole 46b of the first frame mounting hole 46, a tip end portion of the flange 70c is fitted into the third annular hole 46c of the first frame mounting hole 46, the first groove surface 52a of the annular groove 52 of the clamp ring 50 abuts against an inner inclined surface of a front end portion of the flange 70c, the front end portion of the flange 70c is accommodated in the annular groove 52, the second groove surface 52b of the flange 52 abuts against the outer surface 70c of the first lip 41 of the first valve core ball, and the second groove surface 52b is at a certain distance from the outer surface of the first lip 41 of the first ball 11. The compression ring 50 is provided with a plurality of screw through holes 51, correspondingly, the bottom surface of the first hole 21 of the valve body 20 is provided with a plurality of threaded holes 24, and the compression ring 50 is tightly matched with the valve body 20 through screws. During sealing, the first groove surface 52a of the clamp ring 50 is abutted against the inner inclined surface of the front end part of the flange 70c, so that the flange 70c is extruded, the first framework 70 is pushed to the right side, the sealing effect of contact sealing between the second lip 42 and the valve body 20 is improved, the sealing effect of contact sealing between the third lip 43 and the valve body 20 is improved, the sealing effect of contact sealing between the fourth lip 44 and the valve body 20 is improved, meanwhile, during sealing, the flange 70c is extruded, the inclined plate 70a deflects towards the first lip 41, the first lip 41 is matched with the valve core ball 10 more tightly, the sealing effect is improved, in addition, after long-time use, the first lip 41 and the valve core ball 10 are worn, the inclined plate 70a deflects towards the first lip 41 under the action of the clamp ring 50, gaps generated by wear can be compensated, the sealing performance between the first lip 41 and the valve core ball 10 is maintained, and the service life of the ball valve is prolonged.
In this embodiment, as shown in fig. 1, 2 and 7, the sealing ring 40 is further provided with a second lip 42, a third lip 43 and a fourth lip 44, the first skeleton mounting hole 46 extends from the first lip 41 to the second lip 42, when in sealing, the second lip 42 is abutted against the junction between the inner wall of the second hole 22 of the valve body 20 and the bottom surface of the second hole 22 to form a contact seal, the third lip 43 is abutted against the junction between the inner edge inner wall 252 of the annular counter bore 25 of the valve body 20 and the bottom surface of the annular counter bore 25 to form a contact seal, and the fourth lip 44 is abutted against the junction between the outer edge inner wall 251 of the annular counter bore 25 of the valve body 20 and the bottom surface of the annular counter bore 25 to form a contact seal.
In this embodiment, as shown in fig. 2 and 3, the seal ring 40 is further provided with an inner ring groove 40a, an outer ring groove 40b, a U-shaped groove 40c and a U-shaped ring groove 40d, wherein the inner ring groove 40a is disposed on the inner wall of the body of the seal ring 40 and between the first lip 41 and the third lip 43, so as to facilitate deformation of the body of the seal ring 40 when the body of the seal ring is pressed, the outer ring groove 40b is disposed on the outer wall of the body of the seal ring 40 and between the second lip 42 and the fourth lip 44, so as to facilitate deformation of the body of the seal ring 40 when the body of the seal ring 40 is pressed, the U-shaped groove 40c is disposed on the right end face of the body of the seal ring 40 and below the third lip 43, so as to facilitate deformation of the third lip 43, and the U-shaped ring groove 40d is disposed on the right end face of the body of the seal ring 40 and above the fourth lip 44, so as to facilitate deformation of the right end face of the body of the seal ring 40 penetrating the body of the seal ring 40 and being accommodated in the third hole 23 of the valve body 20.
In this embodiment, as shown in fig. 1, 2, 3 and 7, the spring 60 is installed in the spring installation groove 43a, a part of the outer circumference of the spring 60 extends into the U-shaped groove 40c, the U-shaped groove 40c penetrates through the right end surface of the body of the seal ring 40, and the elastic force of the spring 60 is radially inward, so that the third lip 43 is more tightly abutted against the inner edge wall 252 of the annular counter bore 25 of the valve body 20, thereby improving the sealing effect.
In this embodiment, as shown in fig. 1, 2 and 7, a plurality of truncated cones 45 are provided on the right end surface of the body of the seal ring 40, the truncated cones 45 are provided between the third lip 43 and the fourth lip 44, the truncated cones 45 extend into the spring hole 26 of the valve body 20, and the tips of the truncated cones 45 abut against the coil springs 90 in the spring hole 26.
In this embodiment, as shown in fig. 1, 2, 3 and 5, the sealing ring 40 is further provided with a second frame mounting hole 47, the second frame mounting hole 47 is located near the circular truncated cone portion 45, a second frame 80 is mounted in the second frame mounting hole 47, the second frame mounting hole 47 includes a fourth annular hole 47a and a fifth annular hole 47b, the fourth annular hole 47a is communicated with the fifth annular hole 47b, the fifth annular hole 47b extends towards the end of the circular truncated cone portion 45, the second frame 80 includes a pipe portion 81 and an annular disc portion 82, the pipe portion 81 is connected with the annular disc portion 82, the pipe portion 81 is embedded in the fourth annular hole 47a, and the annular disc portion 82 is embedded in the fifth annular hole 47 b.
In the present embodiment, the left end of the coil spring 90 abuts against the front end surface of the truncated cone 45, and the right end of the coil spring 90 abuts against the bottom wall of the spring hole 26. During sealing, the elastic force of the spiral spring 90 acts on the sealing ring 40 to enhance the sealing effect of the first lip 41 and the valve core ball 10 and the close fit of the first groove surface 52a and the flange 70c, meanwhile, after long-time use, the spiral spring 90 can compensate the gap generated by abrasion, maintain the sealing performance between the sealing ring 40 and the valve core ball 10, and further prolong the service life of the ball valve.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The sealing ball valve comprises a valve body (20) and a valve core ball (10), wherein the valve core ball (10) is arranged in a valve cavity (28) of the valve body (20), and is characterized by further comprising a sealing ring (40) and a compression ring (50), the sealing ring (40) is arranged between the valve core ball (10) and the valve body (20), the compression ring (50) is arranged in a first hole (21) of the valve body (20) and is abutted against a flange (70 c) of a first framework (70) of the sealing ring (40), a plurality of screw through holes (51) are arranged on the compression ring (50), a plurality of threaded holes (24) are correspondingly arranged on the bottom surface of the first hole (21) of the valve body (20), the compression ring (50) is tightly matched with the valve body (20) through screws, the first framework (70) is inlaid in a first framework mounting hole (46) of the sealing ring (40), the first framework (70) further comprises an inclined plate (70 a) and a vertical plate (70 b), the inclined plate (70 a) is connected with the inclined plate (70 a) at an included angle of the vertical plate (70 a) at the upper edge (70 c) of the inclined plate (70 a), the inclined plate (70 a) is inlaid in a first annular hole (46 a) of the first framework mounting hole (46) and is close to a first lip (41) of the sealing ring (40), the vertical plate (70 b) is inlaid in a second annular hole (46 b) of the first framework mounting hole (46), the tail end part of the flange (70 c) is inlaid in a third annular hole (46 c) of the first framework mounting hole (46), a first groove surface (52 a) of an annular groove part (52) of the compression ring (50) is abutted against an inner inclined surface of the front end part of the flange (70 c), and the first lip surface (41 a) of the first lip (41) is attached to a valve core ball surface (11) of the valve core ball (10).
2. The sealing ball valve according to claim 1, wherein the seal ring (40) is further provided with a second lip (42), a third lip (43) and a fourth lip (44), the second lip (42) is abutted against a junction of an inner wall of the second hole (22) of the valve body (20) and a bottom surface of the second hole (22), the third lip (43) is abutted against a junction of an inner edge inner wall (252) of the annular counter bore (25) of the valve body (20) and a bottom surface of the annular counter bore (25), the fourth lip (44) is abutted against a junction of an outer edge inner wall (251) of the annular counter bore (25) of the valve body (20), and the first skeleton mounting hole (46) extends from the first lip (41) to the second lip (42).
3. The sealing ball valve according to claim 1, wherein a front end portion of the flange (70 c) is accommodated in the annular groove portion (52), and a second groove surface (52 b) of the annular groove portion (52) is spaced apart from an outer periphery of the flange (70 c).
4. The sealing ball valve according to claim 2, characterized in that the sealing ring (40) is further provided with an inner ring groove (40 a), an outer ring groove (40 b), a U-shaped groove (40 c) and a U-shaped ring groove (40 d), the inner ring groove (40 a) is arranged on the inner wall of the body of the sealing ring (40) and between the first lip (41) and the third lip (43), the outer ring groove (40 b) is arranged on the outer wall of the body of the sealing ring (40) and between the second lip (42) and the fourth lip (44), the U-shaped groove (40 c) is arranged on the right end face of the body of the sealing ring (40) and below the third lip (43) and is communicated with a spring mounting groove (43 a) of the third lip (43), the U-shaped ring groove (40 d) is arranged on the right end face of the body of the sealing ring (40) and above the fourth lip (44), and the U-shaped groove (40 c) is arranged in the third lip (23) of the body of the sealing ring (40).
5. The sealing ball valve according to claim 4, wherein a spring (60) is installed in the spring installation groove (43 a), a part of the outer periphery of the spring (60) extends into the U-shaped groove (40 c), the U-shaped groove (40 c) penetrates through the right end face of the body of the sealing ring (40), and the U-shaped ring groove (40 d) penetrates through the right end face of the body of the sealing ring (40).
6. The sealing ball valve according to claim 5, wherein a plurality of round table portions (45) are arranged on the right end face of the body of the sealing ring (40), the round table portions (45) are arranged between the third lip portions (43) and the fourth lip portions (44), the round table portions (45) extend into the spring holes (26) of the valve body (20), and the front ends of the round table portions (45) abut against the spiral springs (90) in the spring holes (26).
7. The sealing ball valve according to claim 6, wherein a second skeleton mounting hole (47) is further formed in the sealing ring (40), the second skeleton mounting hole (47) is located near the round table portion (45), and a second skeleton (80) is mounted in the second skeleton mounting hole (47).
8. The sealing ball valve according to claim 7, wherein the second skeleton mounting hole (47) includes a fourth annular hole (47 a) and a fifth annular hole (47 b), the fourth annular hole (47 a) being in communication with the fifth annular hole (47 b), the fifth annular hole (47 b) extending toward the tip of the boss portion (45).
9. The sealing ball valve according to claim 8, wherein the second skeleton (80) includes a pipe portion (81) and an annular disk portion (82), the pipe portion (81) being connected to the annular disk portion (82), the pipe portion (81) being fitted in the fourth annular hole (47 a), the annular disk portion (82) being fitted in the fifth annular hole (47 b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711341174.4A CN107940016B (en) | 2017-12-14 | 2017-12-14 | Sealing ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711341174.4A CN107940016B (en) | 2017-12-14 | 2017-12-14 | Sealing ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107940016A CN107940016A (en) | 2018-04-20 |
| CN107940016B true CN107940016B (en) | 2023-11-10 |
Family
ID=61944241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711341174.4A Active CN107940016B (en) | 2017-12-14 | 2017-12-14 | Sealing ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107940016B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488394B (en) * | 2018-05-03 | 2020-05-19 | 温州职业技术学院 | Double-conical hydraulic valve |
| CN209925622U (en) * | 2018-09-10 | 2020-01-10 | 衡水威达橡塑有限公司 | Sealing washer and sealed frock of nodular cast-in-place pipe pressure testing |
| KR20200051391A (en) * | 2018-11-05 | 2020-05-13 | 현대자동차주식회사 | Sealing member for a multi direction changeover valve and multi direction changeover valve including thereof |
| CN117098942A (en) * | 2021-03-25 | 2023-11-21 | 巴克阀门股份有限公司 | Bidirectional ball valve with low-temperature base |
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