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CN114776830B - Top-mounted ultra-low temperature ball valve - Google Patents

Top-mounted ultra-low temperature ball valve Download PDF

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Publication number
CN114776830B
CN114776830B CN202210297655.4A CN202210297655A CN114776830B CN 114776830 B CN114776830 B CN 114776830B CN 202210297655 A CN202210297655 A CN 202210297655A CN 114776830 B CN114776830 B CN 114776830B
Authority
CN
China
Prior art keywords
valve
crank
driving rod
sealing block
valve body
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.)
Active
Application number
CN202210297655.4A
Other languages
Chinese (zh)
Other versions
CN114776830A (en
Inventor
李伟
姚建均
王茁
严涛
严珊珊
童海东
史可任
季会剑
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.)
Jiangsu Shengtai Valve Co ltd
Original Assignee
Jiangsu Shengtai 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 Jiangsu Shengtai Valve Co ltd filed Critical Jiangsu Shengtai Valve Co ltd
Priority to CN202210297655.4A priority Critical patent/CN114776830B/en
Publication of CN114776830A publication Critical patent/CN114776830A/en
Application granted granted Critical
Publication of CN114776830B publication Critical patent/CN114776830B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00Plug 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
    • F16K5/08Details
    • F16K5/14Special arrangements for separating the sealing faces or for pressing them together
    • F16K5/20Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
    • F16K5/201Special 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00Cleaning by methods involving the use of tools
    • B08B1/10Cleaning by methods involving the use of tools characterised by the type of cleaning tool
    • B08B1/16Rigid blades, e.g. scrapers; Flexible blades, e.g. wipers
    • B08B1/165Scrapers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00Cleaning by methods involving the use of tools
    • B08B1/30Cleaning by methods involving the use of tools by movement of cleaning members over a surface
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00Cleaning by methods involving the use of tools
    • B08B1/30Cleaning by methods involving the use of tools by movement of cleaning members over a surface
    • B08B1/32Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00Cleaning by methods involving the use of tools
    • B08B1/50Cleaning by methods involving the use of tools involving cleaning of the cleaning members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00Plug 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
    • F16K5/06Plug 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
    • F16K5/0626Easy mounting or dismounting means
    • F16K5/0636Easy mounting or dismounting means the spherical plug being insertable from the top of the housing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00Plug 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
    • F16K5/06Plug 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
    • F16K5/0647Spindles or actuating means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00Plug 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
    • F16K5/08Details

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Taps Or Cocks (AREA)

Abstract

The invention provides a top-mounted ultra-low temperature ball valve, which comprises: valve body, case and sealing module, the case rotates and sets up in the valve body, sealing module includes sealing block and drive assembly, sealing block slides and sets up in the valve body and can with the case edge laminating, drive assembly is used for the drive sealing block motion. The invention aims to provide a top-mounted ultra-low temperature ball valve, which is used for solving the problem that the sealing performance of the top-mounted ball valve in an ultra-low temperature pipeline in the prior art is insufficient.

Description

Top-mounted ultra-low temperature ball valve
Technical Field
The invention relates to the technical field of top-mounted ball valves, in particular to a top-mounted ultralow temperature ball valve.
Background
The valve is one of the most commonly used tools for controlling pipelines in daily life, and can effectively control the opening and closing, the flow speed, the flow direction and the like of the pipelines by using the valve, wherein the top-mounted ball valve is widely applied to pipeline flow control due to good sealing performance and the like, as shown in fig. 1, in the ultra-low temperature pipeline transportation process of some special products such as natural gas, the top-mounted ball valve is required to be used for flow control, at the moment, the sealing performance is influenced due to the fact that the volume of the ball valve is changed in the ultra-low temperature pipeline due to expansion caused by heat, contraction caused by cold and the like, at the moment, once the pipeline is not tightly controlled, the product continues to flow, and therefore, a new top-mounted ultra-low temperature ball valve is required to be designed, and the problem that the sealing performance of the top-mounted ball valve in the ultra-low temperature pipeline in the prior art is insufficient is solved.
Disclosure of Invention
The invention provides a top-mounted ultra-low temperature ball valve, which is used for solving the problem that the top-mounted ball valve in the prior art has insufficient tightness in an ultra-low temperature pipeline.
Therefore, the technical scheme is that the top-mounted ultra-low temperature ball valve comprises: valve body, case and sealing module, the case rotates and sets up in the valve body, sealing module includes sealing block and drive assembly, sealing block slides and sets up in the valve body and can with the case edge laminating, drive assembly is used for the drive sealing block motion.
Preferably, a valve cavity penetrating through the valve body is horizontally arranged in the valve body, the valve core is in a sphere structure and is rotatably arranged in the valve cavity, a first driving rod is arranged above the valve core, the first driving rod is vertically arranged, the lower end of the first driving rod is fixedly connected with the valve core, the first driving rod is rotatably connected with the valve body, the upper end of the first driving rod penetrates through the outside of the valve body, and a first gear is fixedly arranged at the upper end of the first driving rod; the sealing block horizontally slides and sets up in the valve pocket, and has seted up the through-hole in the middle of the sealing block, still rotate in the valve body and be provided with the second actuating lever, the vertical setting of second actuating lever just with the valve body rotates to be connected, the fixed second gear that is provided with in second actuating lever upper end, the second gear with first gear engagement, the fixed driving cam that is provided with in second actuating lever lower extreme, driving cam can with the sealing block butt.
Preferably, a limiting sleeve is fixedly arranged in the valve cavity, the limiting sleeve is positioned on one side, far away from the valve core, of the sealing block, and a reset spring is fixedly arranged between the limiting sleeve and the sealing block.
Preferably, a cleaning assembly is further disposed in the valve cavity, and the cleaning assembly includes:
the second motor is fixedly arranged in the valve cavity, an output shaft of the second motor is horizontally arranged and is consistent with the direction of the valve cavity, a supporting block is fixedly arranged on the output shaft of the second motor, one end, far away from the second motor, of the supporting block is fixedly provided with a horizontal sleeve, and the horizontal sleeve is perpendicular to the output shaft of the second motor;
the outer periphery of the output shaft of the second motor is coaxially provided with a linkage ring, the inner wall of the linkage ring is provided with a linkage groove, the inner wall of the valve cavity is fixedly provided with an axial hydraulic cylinder, the direction of the output shaft of the axial hydraulic cylinder is consistent with that of the valve cavity, and the output shaft of the axial hydraulic cylinder is fixedly connected with the linkage ring;
the horizontal sleeve is internally provided with a third main shaft in a rotating manner, one end of the third main shaft is fixedly provided with a first crank, the first crank is obliquely arranged, one end of the first crank, which is far away from the third main shaft, is fixedly provided with a second crank, one end of the second crank, which is far away from the first crank, is fixedly provided with a linkage block, the linkage block is in a sphere structure, and the linkage block is slidably arranged in the linkage groove;
the third crank, the fixed third crank that is provided with of third main shaft other end, third crank perpendicular to the third main shaft, fixed fourth crank that is provided with on the third crank, fourth crank slope sets up and the incline direction is kept away from gradually second motor output shaft axis, fourth crank keeps away from the fixed backup pad that is provided with of third crank one end, be provided with the scraper blade in the backup pad, the scraper blade middle part with the backup pad is articulated along the lower side, and the scraper blade upper end with fixedly between the backup pad is provided with spacing spring, the scraper blade lower extreme with valve pocket inner wall butt.
Preferably, an abutting strip is fixedly arranged at the through hole on the sealing block, and the abutting strip is in a cross structure.
The working principle and the beneficial effects of the invention are as follows: when the ball valve is used, when the valve needs to be closed, the valve core is screwed to close the valve, meanwhile, the driving assembly pushes the sealing block to slide, and the sealing block slides to be attached to the edge of the valve core, so that the edge of the valve core is sealed, the defect of insufficient sealing performance of the ball valve caused by expansion due to heat, contraction due to cold and the like during low-temperature pipeline use is avoided, and the sealing performance of the ball valve is improved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic illustration of a top-mounted ball valve in the prior art;
FIG. 2 is a schematic diagram of a top-mounted ultra-low temperature ball valve in an embodiment of the invention;
FIG. 3 is a schematic view of a rust removing assembly in a top-mounted ultra-low temperature ball valve according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a cleaning assembly in a top-mounted ultra-low temperature ball valve according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a cleaning assembly in a top-mounted ultra-low temperature ball valve according to an embodiment of the present invention;
FIG. 6 is a schematic view of a support plate and a scraper in a top-mounted ultra-low temperature ball valve according to an embodiment of the present invention;
fig. 7 is a schematic view of an abutting strip structure in a top-mounted ultra-low temperature ball valve according to an embodiment of the invention.
The labels in the figures are as follows: 1. a valve body; 11. a valve cavity; 2. a valve core; 21. a first driving lever; 22. a first gear; 3. a sealing module; 31. a sealing block; 32. a drive assembly; 321. a second driving lever; 322. a second gear; 323. a driving cam; 324. a limit sleeve; 325. a return spring; 4. a rust prevention component; 401. a first motor; 402. a first spindle; 403. a first mounting frame; 404. a third bevel gear; 405. a second spindle; 406. a fourth bevel gear; 407. a drive sleeve; 408. a drive chamber; 409. a fifth bevel gear; 410. a first post; 411. a sixth bevel gear; 412. a second post; 413. a driving groove; 414. a support sleeve; 415. cleaning claws; 416. a tension spring; 417. an axial chute; 418. an axial slider; 419. positioning holes; 420. a positioning block; 421. a limiting block; 5. cleaning the assembly; 501. a second motor; 502. a support block; 503. a horizontal sleeve; 504. a linkage ring; 505. a linkage groove; 506. an axial hydraulic cylinder; 507. a third spindle; 508. a first crank; 509. a second crank; 510. a linkage block; 511. a third crank; 512. a fourth crank; 513. a support plate; 514. a scraper; 515. a limit spring; 6. an abutment bar; 7. a ball valve body; 71. a grip; 72. a transmission module.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
The embodiment of the invention provides a top-mounted ultra-low temperature ball valve, as shown in fig. 2, comprising: the valve body 1, case 2 and sealing module 3, case 2 rotates the setting and is in the valve body 1, sealing module 3 includes sealing block 31 and drive assembly 32, sealing block 31 slip sets up in the valve body 1 and can with case 2 edge laminating, drive assembly 32 is used for the drive sealing block 31 motion.
The technical scheme has the working principle and beneficial technical effects that: when the ball valve is used, when the valve needs to be closed, the valve core 2 is screwed to close the valve, meanwhile, the driving assembly 32 pushes the sealing block 31 to slide, and the sealing block 31 slides to be attached to the edge of the valve core 2, so that the edge of the valve core 2 is sealed, the defect that the sealing performance of the ball valve is insufficient due to expansion caused by heat, contraction caused by cold and the like when the low-temperature pipeline is used is avoided, and the sealing performance of the ball valve is improved.
In one embodiment, a valve cavity 11 penetrating through the valve body 1 is horizontally arranged in the valve body 1, the valve core 2 is in a ball structure and is rotatably arranged in the valve cavity 11, a first driving rod 21 is arranged above the valve core 2, the first driving rod 21 is vertically arranged, the lower end of the first driving rod 21 is fixedly connected with the valve core 2, the first driving rod 21 is rotatably connected with the valve body 1, the upper end of the first driving rod penetrates through the valve body 1, and a first gear 22 is fixedly arranged at the upper end of the first driving rod 21; the sealing block 31 is horizontally arranged in the valve cavity 11 in a sliding manner, a through hole is formed in the middle of the sealing block 31, a second driving rod 321 is further rotatably arranged in the valve body 1, the second driving rod 321 is vertically arranged and is rotatably connected with the valve body 1, a second gear 322 is fixedly arranged at the upper end of the second driving rod 321, the second gear 322 is meshed with the first gear 22, a driving cam 323 is fixedly arranged at the lower end of the second driving rod 321, and the driving cam 323 can be abutted to the sealing block 31.
The technical scheme has the working principle and beneficial technical effects that: when the ball valve is used, the first driving rod 21 is rotated when the valve is required to be closed, the valve core 2 is driven to rotate so as to seal the valve cavity 11, the first gear 22 is driven to rotate when the first driving rod 21 rotates, the first gear 22 drives the second gear 322 to rotate through meshing transmission, the second driving rod 321 is driven to rotate, the second driving rod 321 drives the driving cam 323 to rotate when the second driving rod 321 rotates, and the sealing block 31 is driven to move to be abutted with the valve core 2 along the valve cavity 11, so that the sealing of the valve core 2 is completed.
In one embodiment, a limiting sleeve 324 is fixedly arranged in the valve cavity 11, the limiting sleeve 324 is located at one side of the sealing block 31 away from the valve core 2, and a return spring 325 is fixedly arranged between the limiting sleeve 324 and the sealing block 31.
The technical scheme has the working principle and beneficial technical effects that: through setting up spacing sleeve 324 and reset spring 325, when needs open the valve again, reset spring 325 pulls sealing block 31 and resets to avoid sealing block 31 and case 2 butt to lead to case 2 difficult rotation too tightly, thereby promoted the practicality of device.
In one embodiment, a cleaning assembly 5 is further disposed in the valve chamber 11, as shown in fig. 4-6, and the cleaning assembly 5 includes:
the second motor 501 is fixedly arranged in the valve cavity 11, an output shaft of the second motor 501 is horizontally arranged and is consistent with the direction of the valve cavity 11, a supporting block 502 is fixedly arranged on the output shaft of the second motor 501, a horizontal sleeve 503 is fixedly arranged at one end, far away from the second motor 501, of the supporting block 502, and the horizontal sleeve 503 is perpendicular to the output shaft of the second motor 501;
the linkage ring 504 is coaxially arranged on the periphery of the output shaft of the second motor 501, a linkage groove 505 is formed in the inner wall of the linkage ring 504, an axial hydraulic cylinder 506 is fixedly arranged on the inner wall of the valve cavity 11, the direction of the output shaft of the axial hydraulic cylinder 506 is consistent with that of the valve cavity 11, and the output shaft of the axial hydraulic cylinder 506 is fixedly connected with the linkage ring 504;
the third main shaft 507 is rotatably arranged in the horizontal sleeve 503, a first crank 508 is fixedly arranged at one end of the third main shaft 507, the first crank 508 is obliquely arranged, a second crank 509 is fixedly arranged at one end of the first crank 508 away from the third main shaft 507, a linkage block 510 is fixedly arranged at one end of the second crank 509 away from the first crank 508, the linkage block 510 is in a sphere structure, and the linkage block 510 is slidably arranged in the linkage groove 505;
the third crank 511, the fixed third crank 511 that is provided with of third main shaft 507 other end, the third crank 511 perpendicular to the third main shaft 507, the fixed fourth crank 512 that is provided with on the third crank 511, the fourth crank 512 slope sets up and the incline direction is kept away from gradually the output shaft axis of second motor 501, the fixed backup pad 513 that is provided with in one end that the third crank 511 was kept away from to fourth crank 512, be provided with scraper blade 514 on the backup pad 513, the scraper blade 514 middle part with the backup pad 513 lower limb articulates, and scraper blade 514 upper end with fixedly between the backup pad 513 be provided with spacing spring 515, scraper blade 514 lower extreme with valve pocket 11 inner wall butt.
The technical scheme has the working principle and beneficial technical effects that: when the ball valve is used for a long time, more impurities are adhered to the inner surface of the valve cavity 11, impurities are required to be cleaned at the moment, excessive influence of the impurities is avoided, when the cleaning assembly 5 is used, the second motor 501 is started to drive the supporting block 502 to rotate, the supporting block 502 sequentially passes through the horizontal sleeve 503, the third crank 511 and the fourth crank 512 to drive the supporting plate 513 to rotate when the supporting block 502 rotates, at the moment, the scraping plate 514 is abutted against the inner surface of the valve cavity 11 to clean the condensed impurities on the inner surface of the valve cavity 11, meanwhile, the axial hydraulic cylinder 506 pushes the linkage ring 504 to reciprocate along the axial direction, the linkage ring 504 drives the third spindle 507 to rotate through the first crank 508 and the second crank 509 when the linkage ring 504 moves forwards, the inclination angle of the third crank 511 and the fourth crank 512 is changed when the third spindle 507 rotates, so that the fourth crank 512 is driven to swing, and the distance between the end of the fourth crank 512 and the supporting block 502 is changed when the fourth crank 512 swings, at the moment, the scraping plate 514 is still abutted against the inner surface of the valve cavity 11 due to the tension of the limiting spring 515, so that the scraping plate 514 can be scraped in different areas, meanwhile, the scraping areas can be prevented from being damaged by the inner surface of the valve cavity 11 due to the fact that the limiting spring 515 is connected with the inner surface of the scraping plate 11.
In one embodiment, as shown in fig. 7, an abutment strip 6 is fixedly disposed at the through hole on the sealing block 31, and the abutment strip 6 is disposed in a cross structure.
The technical scheme has the working principle and beneficial technical effects that: because the through hole is arranged in the middle of the sealing block 31, the abutting strip 6 with the cross structure is arranged, the driving cam 323 can be contacted with the abutting strip 6 when rotating, and the driving cam 323 is prevented from being separated from the sealing block 31 when pushing, so that the pushing cannot be performed, and the stability of the device is improved.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims (3)

1. A top-loading ultra-low temperature ball valve, comprising: the valve comprises a valve body (1), a valve core (2) and a sealing module (3), wherein the valve core (2) is rotatably arranged in the valve body (1), the sealing module (3) comprises a sealing block (31) and a driving assembly (32), the sealing block (31) is slidably arranged in the valve body (1) and can be attached to the edge of the valve core (2), and the driving assembly (32) is used for driving the sealing block (31) to move;
the valve is characterized in that a valve cavity (11) penetrating through the valve body (1) is horizontally arranged in the valve body (1), the valve core (2) is arranged into a sphere structure and is rotatably arranged in the valve cavity (11), a first driving rod (21) is arranged above the valve core (2), the first driving rod (21) is vertically arranged, the lower end of the first driving rod is fixedly connected with the valve core (2), the first driving rod (21) is rotatably connected with the valve body (1), the upper end of the first driving rod penetrates through the outside of the valve body (1), and a first gear (22) is fixedly arranged at the upper end of the first driving rod (21); the sealing block (31) is horizontally arranged in the valve cavity (11) in a sliding mode, a through hole is formed in the middle of the sealing block (31), a second driving rod (321) is further arranged in the valve body (1) in a rotating mode, the second driving rod (321) is vertically arranged and is in rotating connection with the valve body (1), a second gear (322) is fixedly arranged at the upper end of the second driving rod (321), the second gear (322) is meshed with the first gear (22), a driving cam (323) is fixedly arranged at the lower end of the second driving rod (321), and the driving cam (323) can be in butt joint with the sealing block (31);
a cleaning assembly (5) is further arranged in the valve cavity (11), and the cleaning assembly (5) comprises:
the valve comprises a first motor (501), wherein a valve cavity (11) is internally and fixedly provided with the first motor (501), the output shaft of the first motor (501) is horizontally arranged and is consistent with the direction of the valve cavity (11), the output shaft of the first motor (501) is fixedly provided with a supporting block (502), one end, far away from the first motor (501), of the supporting block (502) is fixedly provided with a horizontal sleeve (503), and the horizontal sleeve (503) is perpendicular to the output shaft of the first motor (501);
the linkage ring (504) is coaxially arranged on the periphery of the output shaft of the second motor (501), a linkage groove (505) is formed in the inner wall of the linkage ring (504), an axial hydraulic cylinder (506) is fixedly arranged on the inner wall of the valve cavity (11), the direction of the output shaft of the axial hydraulic cylinder (506) is consistent with that of the valve cavity (11), and the output shaft of the axial hydraulic cylinder (506) is fixedly connected with the linkage ring (504);
the horizontal sleeve (503) is rotationally provided with a third main shaft (507), one end of the third main shaft (507) is fixedly provided with a first crank (508), the first crank (508) is obliquely arranged, one end of the first crank (508) far away from the third main shaft (507) is fixedly provided with a second crank (509), one end of the second crank (509) far away from the first crank (508) is fixedly provided with a linkage block (510), the linkage block (510) is in a sphere structure, and the linkage block (510) is slidably arranged in the linkage groove (505);
third crank (511), third main shaft (507) other end is fixed to be provided with third crank (511), third crank (511) perpendicular to third main shaft (507), fixed fourth crank (512) that are provided with on third crank (511), fourth crank (512) slope sets up and incline the direction and keep away from gradually second motor (501) output shaft axis, fourth crank (512) are kept away from the fixed backup pad (513) that is provided with of one end of third crank (511), be provided with scraper blade (514) on backup pad (513), scraper blade (514) middle part with the backup pad (513) are down along articulated, and scraper blade (514) upper end with fixed spacing spring (515) between backup pad (513), scraper blade (514) lower extreme with valve pocket (11) inner wall butt.
2. The top-mounted ultra-low temperature ball valve according to claim 1, wherein a limiting sleeve (324) is fixedly arranged in the valve cavity (11), the limiting sleeve (324) is located on one side, far away from the valve core (2), of the sealing block (31), and a reset spring (325) is fixedly arranged between the limiting sleeve (324) and the sealing block (31).
3. The top-mounted ultra-low temperature ball valve according to claim 1, wherein an abutting strip (6) is fixedly arranged at a through hole on the sealing block (31), and the abutting strip (6) is in a cross structure.
CN202210297655.4A 2022-03-24 2022-03-24 Top-mounted ultra-low temperature ball valve Active CN114776830B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210297655.4A CN114776830B (en) 2022-03-24 2022-03-24 Top-mounted ultra-low temperature ball valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210297655.4A CN114776830B (en) 2022-03-24 2022-03-24 Top-mounted ultra-low temperature ball valve

Publications (2)

Publication Number Publication Date
CN114776830A CN114776830A (en) 2022-07-22
CN114776830B true CN114776830B (en) 2023-08-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
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CN215950462U (en) * 2021-11-01 2022-03-04 杭州生宝阀业有限公司 High-sealing eccentric adjusting ball valve

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CN215950462U (en) * 2021-11-01 2022-03-04 杭州生宝阀业有限公司 High-sealing eccentric adjusting ball valve

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