CN117128337A - Ball valve with adjustable sealing structure - Google Patents
Ball valve with adjustable sealing structure Download PDFInfo
- Publication number
- CN117128337A CN117128337A CN202311212263.4A CN202311212263A CN117128337A CN 117128337 A CN117128337 A CN 117128337A CN 202311212263 A CN202311212263 A CN 202311212263A CN 117128337 A CN117128337 A CN 117128337A
- Authority
- CN
- China
- Prior art keywords
- valve
- spring
- limiting
- sealing
- movable
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 101
- 238000003825 pressing Methods 0.000 claims abstract description 31
- 230000002708 enhancing effect Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract 2
- 239000012530 fluid Substances 0.000 description 9
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- 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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0647—Spindles or actuating means
-
- 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
- F16K5/06—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
- F16K5/0694—Spindle sealings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention discloses a ball valve with an adjustable sealing structure, which comprises a valve seat, a valve core and a valve rod, wherein the valve seat is provided with a channel, the valve core is positioned in the channel, the diameter of the valve core is smaller than that of the channel, an installation table is arranged in the middle of the valve seat, one end of the valve rod is connected with the valve core, the other end of the valve rod extends to the outer side of the installation table and is provided with a hand wheel, two sides of the valve seat corresponding to the valve core are provided with movable sealing sleeves, the movable sealing sleeves are of stepped shaft sleeve structures, the movable sealing sleeves and the valve core are provided with circulation holes with the same diameter, one end of each movable sealing sleeve is matched with the valve core, the diameter of each end of each movable sealing sleeve is smaller than that of the other end of each movable sealing sleeve, and a pre-pressing piece is arranged at one end of each movable sealing sleeve, and a limiting piece for limiting sliding of the movable sealing sleeves is arranged on the valve seat.
Description
Technical Field
The invention discloses a ball valve with an adjustable sealing structure, and belongs to the technical field of valves.
Background
Ball valves are used in pipelines to cut off, distribute and change the flow direction of a medium, and can be tightly closed only by ninety degree rotation and a small rotation moment. The ball of the ball valve is driven by the valve rod and rotates around the axis of the ball valve by ninety degrees. The ball valve can be opened and closed. In the sealing structure of ball valves, most adopt soft seal or hard seal structure, soft seal is that the case can compress the spring and remove with case complex seal cover when rotating for the wearing and tearing between case and the seal cover are reduced, but this type of structure is usually applicable to in the lower environment of fluid pressure, and hard seal is that the seal cover can't remove in the disk seat, when making the case rotate, its too tight and lead to the wearing and tearing of both great with the cooperation of seal cover, although can be applicable to in the fluid environment of high pressure, seal cover or case live time is shorter, consequently need design a reasonable ball valve structure to this kind of problem.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a ball valve with an adjustable sealing structure.
The ball valve with the adjustable sealing structure comprises a valve seat, a valve core and a valve rod, wherein the valve seat is provided with a channel, the valve core is positioned in the channel, the diameter of the valve core is smaller than that of the channel, a mounting table is arranged in the middle of the valve seat, one end of the valve rod is connected with the valve core, the other end of the valve rod extends to the outer side of the mounting table and is provided with a hand wheel, movable sealing sleeves are arranged on two sides of the valve seat corresponding to the valve core, the movable sealing sleeves are of stepped shaft sleeve structures and are provided with circulation holes with the same diameter as the valve core, one end of each movable sealing sleeve is matched with the valve core, the diameter of the end of each movable sealing sleeve is smaller than that of the other end of each movable sealing sleeve, one end of each movable sealing sleeve, which is far away from the valve core, is provided with a pre-pressing piece, and the valve seat is provided with a limiting piece for limiting sliding of the movable sealing sleeve.
Preferably, the pre-pressing piece comprises a first limit bolt and a first spring, one end of the first limit bolt penetrates through the movable sealing sleeve and then is fixedly connected with the valve seat, the first spring is sleeved on the outer side of the first limit bolt, and two ends of the first spring are respectively abutted against the movable sealing sleeve and the first limit bolt.
Preferably, the locating part includes no head screw, second spring and gag lever post, be provided with the mounting hole on the disk seat, the axis of mounting hole has 30-45 contained angles with the axis of flow hole, the one end that movable seal cover is close to the case has the locating bench, and has the clearance between middle part and the disk seat of movable seal cover, have the platform face on the locating bench, no head screw and mounting hole threaded connection, the one end of gag lever post can contradict with the platform face, the second spring housing is established on the gag lever post to apply the effort of contradicting no head screw to the gag lever post.
Preferably, the limiting piece and the pre-pressing piece are symmetrically arranged with the flow hole as the center, and one end of the positioning table, which is matched with the valve core, is provided with an extension surface for enhancing the integral structural strength of the positioning table.
Preferably, the sealing piece is arranged at the joint of the mounting table corresponding to the valve rod, the sealing piece comprises a sealing pressing block, a third spring, a pressing sheet and a sealing ring, a sinking groove is arranged in the mounting table, a ring boss is arranged on the valve rod, the third spring, the pressing sheet and the sealing ring are all positioned in the sinking groove, the pressing sheet is positioned between the third spring and the sealing ring, a round table is arranged on the sealing pressing block, the round table is matched with the sinking groove, and the sealing pressing block is fixedly connected with the mounting table through a bolt.
Preferably, one end of the valve rod is provided with a limiting part of a non-circular structure in sliding insertion connection with the valve core, the valve seat is provided with a movable supporting piece, the movable supporting piece comprises a second limiting bolt, a limiting boss and a fourth spring, the limiting boss is coaxially arranged with the valve rod and is rotationally connected with the valve core, one end of the second limiting bolt penetrates through the valve seat and is fixedly connected with the limiting boss, the fourth spring is sleeved on the second limiting bolt, and two ends of the fourth spring are respectively abutted against the limiting boss and the valve seat.
Compared with the prior art, the invention has the beneficial effects that:
1. through setting up movable seal cover, pre-pressing piece and locating part for the cooperation of movable seal cover and case can be soft seal or hard seal, can select corresponding seal structure according to the in-service use environment, both can be applied to in the low pressure fluid environment, can satisfy the operation requirement of high pressure fluid environment again.
2. Because the movable sealing sleeve can be detached from the two sides of the valve seat, after the movable sealing sleeve is worn, the valve rod and the valve core are not required to be detached, and the movable sealing sleeve can be replaced, so that the valve seat can be conveniently maintained.
Drawings
FIG. 1 is a schematic diagram of a ball valve with an adjustable sealing structure according to the present invention;
FIG. 2 is a cross-sectional view of a ball valve with an adjustable seal structure according to the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 1 at A;
FIG. 4 is an enlarged view of a portion of FIG. 1 at B;
figure 5 is a schematic structural view of a movable gland according to the present invention;
reference numerals: 1. a valve seat; 2. a limiting piece; 3. a pre-press; 4. a flow hole; 5. a movable sealing sleeve; 6. a seal; 7. a hand wheel; 8. a mounting table; 9. a mounting hole; 10. a valve core; 11. the second limit bolt; 12. a fourth spring; 13. a limit boss; 14. a channel; 15. a valve stem; 16. a headless screw; 17. a second spring; 18. a limit rod; 19. a circular table top; 20. a first limit bolt; 21. a first spring; 22. a ring bulge; 23. sinking grooves; 24. tabletting; 25. a seal ring; 26. a third spring; 27. round bench; 28. sealing and pressing blocks; 29. an extension surface.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-5, a ball valve with an adjustable sealing structure comprises a valve seat 1, a valve core 10 and a valve rod 15, wherein the valve seat 1 is provided with a channel 14, the valve core 10 is positioned in the channel 14, the diameter of the valve core 10 is smaller than that of the channel 14, a mounting table 8 is arranged in the middle of the valve seat 1, one end of the valve rod 15 is connected with the valve core 10, the other end extends to the outer side of the mounting table 8 and is provided with a hand wheel 7, two sides of the valve seat 1 corresponding to the valve core 10 are provided with movable sealing sleeves 5, the movable sealing sleeves 5 are of stepped shaft sleeve structures, the movable sealing sleeves 5 and the valve core 10 are provided with circulation holes 4 with the same diameter, one ends of the movable sealing sleeves 5 are matched with the valve core 10, the diameter of the ends is smaller than that of the other ends, one ends of the movable sealing sleeves 5 far away from the valve core 10 are provided with pre-pressed pieces 3, and the valve seat 1 is provided with limiting pieces 2 for limiting sliding of the movable sealing sleeves 5.
As shown in fig. 2 and 3, the pre-pressing piece 3 includes a first limit bolt 20 and a first spring 21, one end of the first limit bolt 20 passes through the movable seal sleeve 5 and is fixedly connected with the valve seat 1, the first spring 21 is sleeved on the outer side of the first limit bolt 20, two ends of the first spring are respectively abutted against the movable seal sleeve 5 and the first limit bolt 20, the first limit bolt 20 can limit the sliding distance of the movable seal sleeve 5, when the movable seal sleeve 5 is under the abutting action of the valve core 10 in the rotating process, the movable seal sleeve 5 can compress the first spring 21 towards one side, so that the movable seal sleeve 5 can slide in the valve seat 1, thereby reducing the abrasion between the movable seal sleeve 5 and the valve core 10, and the first spring 21 can push the movable seal sleeve 5 to reset after the rotation of the valve core 10 is completed, thereby continuously keeping the sealing between the movable seal sleeve 5 and the valve core 10.
As shown in fig. 2 and 4, the limiting piece 2 comprises a headless screw 16, a second spring 17 and a limiting rod 18, the valve seat 1 is provided with a mounting hole 9, an included angle of 30-45 degrees is formed between the axis of the mounting hole 9 and the axis of the circulation hole 4, one end of the movable sealing sleeve 5, which is close to the valve core 10, is provided with a positioning table, a gap is formed between the middle part of the movable sealing sleeve 5 and the valve seat 1, the positioning table is provided with a round table surface 19, the headless screw 16 is in threaded connection with the mounting hole 9, one end of the limiting rod 18 can abut against the round table surface 19, the second spring 17 is sleeved on the limiting rod 18, an acting force abutting against the headless screw 16 is applied to the limiting rod 18, the connection between the headless screw 16 and the valve seat 1 can control the length of the limiting rod 18 extending into the channel 14, and one end of the limiting rod 18 can abut against the round table surface 19, thus the sliding of the movable sealing sleeve 5 can be limited, one end of the limiting rod 18 abutting against the round table surface 19 is in a spherical structure, the strength of the limiting rod 18 can be increased, and the cross section of the limiting rod 18, which is perpendicular to the round table surface 19 in the axial direction of the limiting rod 18 can abut against the round table surface 19 when the limiting rod 18 is pressed against the round table surface 19.
As shown in fig. 1 and 2, the three limiting pieces 2 and the pre-pressing pieces 3 are symmetrically arranged with the circulation hole 4 as the center, the three limiting pieces 2 can ensure that the movable sealing sleeve 5 is stressed stably, the three pre-pressing pieces 3 can strengthen the pressure resisting force to the movable sealing sleeve 5, so that the structure of the movable sealing sleeve 5 is more stable when the movable sealing sleeve is limited to slide, one end of the positioning table, which is matched with the valve core 10, is provided with an extending surface 29 for strengthening the integral structural strength of the movable sealing sleeve, the extending surface 29 can not only lift the structure of the positioning table, but also reduce the matching of the positioning table and the valve core 10 so as to wear, thereby prolonging the service life of the movable sealing sleeve 5, and in the design of the hardness structure, the hardness of the movable sealing sleeve 5 is lower than the hardness of the valve core 10, so that the movable sealing sleeve 5 can wear faster, after a period of use, only the movable sealing sleeve 5 needs to be replaced, and the movable sealing sleeve 5 can be directly detached from two sides of the valve seat 1, so that the maintenance of the valve seat 1 is simplified, the manufacturing and the movable sealing sleeve 5 is simpler, the cost is lower, meanwhile, the movable sealing sleeve 5 can be matched with the positioning table and the valve seat 1, the pressure can be lifted to the valve seat 1, and the stress can be greatly stressed by the structure.
As shown in fig. 1 and 2, the sealing element 6 is arranged at the joint of the mounting table 8 corresponding to the valve rod 15, the sealing element 6 comprises a sealing pressing block 28, a third spring 26, a pressing sheet 24 and a sealing ring 25, a sinking groove 23 is arranged in the mounting table 8, a ring boss 22 is arranged on the valve rod 15, the third spring 26, the pressing sheet 24 and the sealing ring 25 are all located in the sinking groove 23, the pressing sheet 24 is located between the third spring 26 and the sealing ring 25, a round table 27 is arranged on the sealing pressing block 28, the round table 27 is matched with the sinking groove 23, the sealing pressing block 28 is fixedly connected with the mounting table 8 through bolts, the sealing pressing block 28 applies pressure to the ring boss 22, so that the acting force of the valve rod 15 is transmitted to the third spring 26 and is compressed, and the acting force of the third spring 26 on the pressing sheet 24 is transmitted to the sealing ring 25, so that the sealing ring 25 deforms to seal the joint of the valve rod 15 and the mounting table 8, and thus the situation that fluid leakage cannot occur at the mounting position of the valve rod 15 can be ensured.
As shown in fig. 2, one end of the valve rod 15 is provided with a limiting part with a non-circular structure in sliding connection with the valve core 10, the valve seat 1 is provided with a movable supporting piece, the movable supporting piece comprises a second limiting bolt 11, a limiting boss 13 and a fourth spring 12, the limiting boss 13 and the valve rod 15 are coaxially arranged, the limiting boss 13 is rotationally connected with the valve core 10, one end of the second limiting bolt 11 penetrates through the valve seat 1 and then is fixedly connected with the limiting boss 13, the fourth spring 12 is sleeved on the second limiting bolt 11, two ends of the fourth spring are respectively abutted against the limiting boss 13 and the valve seat 1, the fourth spring 12 applies a force to the limiting boss 13, so that one end of the limiting boss 13 can be inserted into the valve core 10 to jointly support the valve core 10, the valve core 10 is prevented from being influenced by the structure of the valve rod 15 when the valve core 10 is subjected to fluid pressure, and when the valve core 10 is disassembled, the fourth spring 12 is compressed by pulling the fourth spring 12 outwards.
Working principle: when the ball valve is used in a low-pressure fluid environment, the limiting rod 18 is controlled to be separated from the abutting of the round table surface 19, the limiting rod 18 does not block the movable sealing sleeve 5 from moving, when the valve rod 15 drives the valve core 10 to rotate, the movable sealing sleeve 5 slides towards one side under the abutting of the ball valve and compresses the first spring 21, then the first spring 21 drives the movable sealing sleeve 5 to reset, so that the valve core 10 and the movable sealing sleeve 5 are matched into a soft sealing structure, when the ball valve is used in a high-pressure fluid environment, the non-head screw 16 is utilized to push the limiting rod 18, one end of the limiting rod 18 abuts against the round table surface 19, one end of the movable sealing sleeve 5 is in abutting fit with the valve core 10, so that the sliding of the movable sealing sleeve 5 in the axial direction of the valve core 10 is limited by the limiting rod 18, and therefore the high-pressure fluid cannot seep from the matched position of the movable sealing sleeve 5 and the valve core 10, the corresponding use requirement is met, the ball valve can be switched between soft sealing and the hard sealing through adjusting the length of the limiting rod 18 in the channel 14, meanwhile, the valve core can be prevented from being worn and worn by screwing the non-head screw 16 on the movable sealing sleeve 16, and the non-head screw 16 can be rotated in the opposite direction, and the time can be prolonged when the movable sealing sleeve 16 is used in the opposite to rotate, and the round table surface of the valve body 10 is not worn.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (6)
1. The utility model provides a seal structure adjustable ball valve, includes disk seat (1), case (10) and valve rod (15), its characterized in that, disk seat (1) has a passageway (14), case (10) are located passageway (14), and the diameter of case (10) is less than the diameter of passageway (14), the middle part of disk seat (1) is provided with mount table (8), the one end of valve rod (15) is connected with case (10), and the other end extends to the outside of mount table (8) and is provided with hand wheel (7), the both sides of disk seat (1) corresponding case (10) are provided with movable seal cover (5), movable seal cover (5) are ladder sleeve structure, and have circulation hole (4) the same with the case (10) diameter, the one end of movable seal cover (5) and the cooperation of case (10), and the diameter of this end is less than the other end, the one end that case (10) were kept away from to movable seal cover (5) is provided with prestressing member (3), be provided with on disk seat (1) restriction movable seal cover (5) gliding spacing piece (2).
2. The ball valve with the adjustable sealing structure according to claim 1, wherein the pre-pressing piece (3) comprises a first limit bolt (20) and a first spring (21), one end of the first limit bolt (20) penetrates through the movable sealing sleeve (5) and is fixedly connected with the valve seat (1), the first spring (21) is sleeved on the outer side of the first limit bolt (20), and two ends of the first spring are respectively abutted against the movable sealing sleeve (5) and the first limit bolt (20).
3. The ball valve with the adjustable sealing structure according to claim 2, wherein the limiting piece (2) comprises a headless screw (16), a second spring (17) and a limiting rod (18), a mounting hole (9) is formed in the valve seat (1), an included angle of 30-45 degrees is formed between the axis of the mounting hole (9) and the axis of the flow hole (4), a positioning table (30) is arranged at one end, close to the valve core (10), of the movable sealing sleeve (5), a gap is formed between the middle part of the movable sealing sleeve (5) and the valve seat (1), a circular table surface (19) is arranged on the positioning table (30), the headless screw (16) is in threaded connection with the mounting hole (9), one end of the limiting rod (18) can be abutted against the circular table surface (19), and the second spring (17) is sleeved on the limiting rod (18) and applies a force for abutting the headless screw (16).
4. A ball valve with an adjustable sealing structure according to claim 3, characterized in that three limiting parts (2) and three pre-pressing parts (3) are symmetrically arranged with the flow hole (4) as a center, and one end of the positioning table (30) matched with the valve core (10) is provided with an extension surface (29) for enhancing the integral structural strength of the positioning table and the valve core.
5. The ball valve with the adjustable sealing structure according to claim 1, characterized in that a sealing piece (6) is arranged at the joint of the mounting table (8) corresponding to the valve rod (15), the sealing piece (6) comprises a sealing pressing block (28), a third spring (26), a pressing piece (24) and a sealing ring (25), a sinking groove (23) is arranged in the mounting table (8), a ring boss (22) is arranged on the valve rod (15), the third spring (26), the pressing piece (24) and the sealing ring (25) are all arranged in the sinking groove (23), the pressing piece (24) is arranged between the third spring (26) and the sealing ring (25), a round table (27) is arranged on the sealing pressing block (28), the round table (27) is matched with the sinking groove (23), and the sealing pressing block (28) is fixedly connected with the mounting table (8) through bolts.
6. The ball valve with the adjustable sealing structure according to claim 1, wherein one end of the valve rod (15) is provided with a limiting part which is in a non-circular structure and is in sliding connection with the valve core (10), the valve seat (1) is provided with a movable supporting piece, the movable supporting piece comprises a second limiting bolt (11), a limiting boss (13) and a fourth spring (12), the limiting boss (13) is coaxially arranged with the valve rod (15), the limiting boss (13) is rotationally connected with the valve core (10), one end of the second limiting bolt (11) passes through the valve seat (1) and is fixedly connected with the limiting boss (13), the fourth spring (12) is sleeved on the second limiting bolt (11), and two ends of the fourth spring are respectively abutted against the limiting boss (13) and the valve seat (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311212263.4A CN117128337A (en) | 2023-09-19 | 2023-09-19 | Ball valve with adjustable sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311212263.4A CN117128337A (en) | 2023-09-19 | 2023-09-19 | Ball valve with adjustable sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117128337A true CN117128337A (en) | 2023-11-28 |
Family
ID=88852770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311212263.4A Pending CN117128337A (en) | 2023-09-19 | 2023-09-19 | Ball valve with adjustable sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117128337A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117869620A (en) * | 2024-03-11 | 2024-04-12 | 紫兴玉光管路系统有限公司 | Forced sealing type ball valve assembly |
-
2023
- 2023-09-19 CN CN202311212263.4A patent/CN117128337A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117869620A (en) * | 2024-03-11 | 2024-04-12 | 紫兴玉光管路系统有限公司 | Forced sealing type ball valve assembly |
| CN117869620B (en) * | 2024-03-11 | 2024-05-28 | 紫兴玉光管路系统有限公司 | Forced sealing type ball valve assembly |
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