CN116928358A - High-performance negative pressure-resistant lining butterfly valve - Google Patents

High-performance negative pressure-resistant lining butterfly valve Download PDF

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Publication number
CN116928358A
CN116928358A CN202310918765.2A CN202310918765A CN116928358A CN 116928358 A CN116928358 A CN 116928358A CN 202310918765 A CN202310918765 A CN 202310918765A CN 116928358 A CN116928358 A CN 116928358A
Authority
CN
China
Prior art keywords
valve body
fixedly connected
negative pressure
valve
fixed
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
Application number
CN202310918765.2A
Other languages
Chinese (zh)
Inventor
方贤乐
方凤竹
林莲平
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.)
Teflon Group Co ltd
Original Assignee
Teflon Group 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 Teflon Group Co ltd filed Critical Teflon Group Co ltd
Priority to CN202310918765.2A priority Critical patent/CN116928358A/en
Publication of CN116928358A publication Critical patent/CN116928358A/en
Pending legal-status Critical Current

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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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/226—Shaping or arrangements of the sealing
    • F16K1/2263—Shaping or arrangements of the sealing the sealing being arranged on the valve seat
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/221—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves specially adapted operating means therefor
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/226—Shaping or arrangements of the sealing
    • F16K1/2268—Sealing means for the axis of rotation
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0209—Check valves or pivoted valves
    • F16K27/0218—Butterfly valves
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
    • 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/60—Handles
    • 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
    • F16K35/00—Means to prevent accidental or unauthorised actuation
    • F16K35/06—Means to prevent accidental or unauthorised actuation using a removable actuating or locking member, e.g. a key
    • 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
    • F16K41/00—Spindle sealings
    • F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
    • F16K41/023—Spindle sealings with stuffing-box ; Sealing rings for spindles which only rotate, i.e. non-rising spindles
    • F16K41/026—Spindle sealings with stuffing-box ; Sealing rings for spindles which only rotate, i.e. non-rising spindles for rotating valves
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L23/00—Flanged joints
    • F16L23/02—Flanged joints the flanges being connected by members tensioned axially

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)

Abstract

The invention discloses a high-performance negative pressure-resistant lining butterfly valve, which comprises a lower valve body and an upper valve body, wherein a side support ring is arranged between the lower valve body and the upper valve body, the side support ring is fixedly arranged between the lower valve body and the upper valve body through a fastening screw in cooperation with a first installation angle and a second installation angle, the inner wall of the side support ring is fixedly connected with a sealing ring, valve columns are movably arranged in the lower valve body and the upper valve body, a butterfly plate is fixedly connected to the valve columns, the butterfly plate is movably arranged in the side support ring, and the surface of the butterfly plate is attached to the inner wall of the sealing ring; according to the invention, the side support ring is arranged, and the sealing ring and the butterfly plate are assembled into a whole and are arranged between the lower valve body and the upper valve body, so that the pipeline negative pressure resistance of the lining butterfly valve sealing ring can be effectively enhanced, the structural strength of the lining butterfly valve sealing ring is increased, the plastic deformation of the sealing ring caused by pipeline negative pressure is greatly reduced, and the service life of the lining butterfly valve is prolonged.

Description

High-performance negative pressure-resistant lining butterfly valve
Technical Field
The invention belongs to the technical field of butterfly valves, and particularly relates to a high-performance negative pressure-resistant lining butterfly valve.
Background
The lining butterfly valve installed on the lining pipeline is characterized in that the structure of the lining butterfly valve is a split structure, namely an upper valve body and a lower valve body, a sealing ring is installed between the upper valve body and the lower valve body, the valve body is used as a metal matrix support of the sealing ring, a sealing pair is formed by the sealing ring and a butterfly plate to form flow channel sealing, the upper part of the sealing ring and a stuffing box, stuffing and a stuffing gland of the upper valve body form axial sealing, and corrosive media of the pipeline are isolated from contacting with the metal matrix support of the valve, so that the metal matrix of the valve is prevented from being corroded by the corrosive media of the pipeline.
At present, when a pipeline is provided with a certain negative pressure and a butterfly plate of a lining butterfly valve is in an open state, a sealing ring loses the support of a metal matrix due to the change of the bearing pressure direction, and then the sealing ring is deformed due to the pressure and even is deformed in a plastic mode to be broken, so that the whole sealing of the valve is invalid and scrapped.
Disclosure of Invention
The invention aims to provide a high-performance negative pressure-resistant lining butterfly valve, which aims to solve the problems that in the prior art, a sealing ring loses the support of a metal matrix due to the change of the bearing pressure direction, so that the sealing ring is deformed due to pressure, even is broken due to plastic deformation, and the whole sealing of a valve is invalid and is scrapped.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the utility model provides a high performance is able to bear or endure negative pressure lining butterfly valve, includes lower valve body and last valve body, be provided with the side support ring between lower valve body and the last valve body, the first installation angle of surface symmetry fixedly connected with of lower valve body two sets of, the two sets of second installation angles of surface symmetry fixedly connected with of last valve body, be provided with fastening screw on first installation angle and the second installation angle, the side support ring passes through fastening screw cooperation first installation angle and second installation angle fixed mounting between lower valve body and last valve body, the inner wall fixedly connected with sealing washer of side support ring, movable mounting has the spool in lower valve body and the last valve body, fixedly connected with butterfly plate on the spool, butterfly plate movable mounting is in the side support ring, the surface and the inner wall laminating of sealing washer of butterfly plate.
Preferably, the top fixedly connected with fixed section of thick bamboo of last valve body, spool movable mounting is in fixed section of thick bamboo, the packing groove has been seted up to the upper end of fixed section of thick bamboo, be provided with the filler in the packing groove.
Preferably, a packing gland is fixedly arranged at the top of the fixed cylinder and is pressed on packing in the packing groove.
Preferably, the top of packing gland fixedly connected with mount, the fixed surface of mount is fixedly connected with support column, fixedly connected with fixed block on the support column.
Preferably, the top of mount and the equal movable mounting of bottom of fixed block have the collar, be annular array between collar on the mount and the bottom of fixed block and be provided with multiunit reference column, multiunit all overlap on the reference column and be equipped with pushing spring, slidable mounting has the regulation handle on the reference column, pushing spring's lower extreme fixed mounting is at the top of collar, pushing spring's upper end fixed mounting is in the bottom of adjusting the handle.
Preferably, the top fixedly connected with spliced pole of valve post, the spliced pole sets up in the mount, the fixed surface of spliced pole is connected with the square, the regulation is last to have seted up the square groove corresponding with the square.
Preferably, the surface of the connecting column is fixedly connected with a baffle ring, and the baffle ring is fixedly connected to the bottom of the square block.
Preferably, the surfaces of the lower valve body and the upper valve body are fixedly connected with flange plates.
The invention has the technical effects and advantages that: compared with the prior art, the high-performance negative pressure resistant lining butterfly valve provided by the invention has the following advantages:
according to the invention, the side support ring is arranged, and the sealing ring and the butterfly plate are assembled into a whole and are arranged between the lower valve body and the upper valve body, so that the pipeline negative pressure resistance of the lining butterfly valve sealing ring can be effectively enhanced, the structural strength of the lining butterfly valve sealing ring is increased, the plastic deformation of the sealing ring caused by pipeline negative pressure is greatly reduced, and the service life of the lining butterfly valve is prolonged.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of a split structure of the present invention;
FIG. 3 is a schematic cross-sectional view of the present invention;
FIG. 4 is a schematic view of the structure of the fixing frame and the adjusting handle;
FIG. 5 is a schematic view of a butterfly plate structure of the invention;
fig. 6 is an enlarged schematic view of the structure of the area a in fig. 3 according to the present invention.
In the figure: 1. a lower valve body; 2. an upper valve body; 3. a first mounting angle; 4. a second mounting angle; 5. a fastening screw; 6. a side support ring; 7. a spool; 8. a butterfly plate; 9. a fixed cylinder; 10. a filler; 11. a packing gland; 12. a flange plate; 13. a connecting column; 14. a fixing frame; 15. a mounting ring; 16. positioning columns; 17. a pushing spring; 18. a baffle ring; 19. a square block; 20. a support column; 21. a fixed block; 22. adjusting the handle; 23. square columns; 24. and (3) sealing rings.
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. The specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. 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.
The invention provides a high-performance negative pressure resistant lining butterfly valve as shown in figures 1-6, which comprises a lower valve body 1 and an upper valve body 2, wherein a side support ring 6 is arranged between the lower valve body 1 and the upper valve body 2, the surface of the lower valve body 1 is symmetrically and fixedly connected with two groups of first mounting angles 3, the surface of the upper valve body 2 is symmetrically and fixedly connected with two groups of second mounting angles 4, fastening screws 5 are arranged on the first mounting angles 3 and the second mounting angles 4, the side support ring 6 is fixedly arranged between the lower valve body 1 and the upper valve body 2 by matching the first mounting angles 3 and the second mounting angles 4 through the fastening screws 5, a sealing ring 24 is fixedly connected with the inner wall of the side support ring 6, a valve column 7 is movably arranged in the lower valve body 1 and the upper valve body 2, a butterfly plate 8 is fixedly connected with the valve column 7, the butterfly plate 8 is movably arranged in the side support ring 6, and the surface of the butterfly plate 8 is jointed with the inner wall of the sealing ring 24;
through the arrangement of the sealing ring 24, the side support of the sealing ring 24 is fixed with the lower valve body 1 and the upper valve body 2 through the set screws, so that the negative pressure resistance of the sealing ring 24 is improved, the pressure deformation damage to the sealing ring 24 caused by pipeline negative pressure is reduced, the phenomenon that the sealing ring 24 is broken and scrapped due to the fact that the pipeline negative pressure is born and exceeds the plastic deformation limit of the material is eliminated, and the overall service life of the valve is effectively prolonged;
the top of the upper valve body 2 is fixedly connected with a fixed cylinder 9, a valve column 7 is movably arranged in the fixed cylinder 9, a packing groove is formed in the upper end of the fixed cylinder 9, packing 10 is arranged in the packing groove, a packing gland 11 is fixedly arranged at the top of the fixed cylinder 9, and the packing gland 11 is tightly pressed on the packing 10 in the packing groove;
by arranging the packing gland 11, the packing gland 11 is pressed on the packing 10, so that the sealing effect of the butterfly valve can be improved through the packing 10;
the top of the packing gland 11 is fixedly connected with a fixing frame 14, the surface of the fixing frame 14 is fixedly connected with a supporting column 20, the supporting column 20 is fixedly connected with a fixing block 21, the top of the fixing frame 14 and the bottom of the fixing block 21 are movably provided with a mounting ring 15, a plurality of groups of positioning columns 16 are arranged between the mounting ring 15 on the fixing frame 14 and the bottom of the fixing block 21 in an annular array, the plurality of groups of positioning columns 16 are sleeved with pushing springs 17, the positioning columns 16 are slidably provided with adjusting handles 22, the lower ends of the pushing springs 17 are fixedly arranged at the top of the mounting ring 15, the upper ends of the pushing springs 17 are fixedly arranged at the bottom of the adjusting handles 22, the top of the valve column 7 is fixedly connected with a connecting column 13, the connecting column 13 is arranged in the fixing frame 14, the surface of the connecting column 13 is fixedly connected with square blocks 19, and square grooves 23 corresponding to the square blocks 19 are formed in the adjusting handles 22;
through the arrangement of the square block 19, when a butterfly valve needs to be opened or closed, the square groove 23 on the adjusting handle 22 is aligned with the square block 19, the adjusting handle 22 is sleeved on the square block 19 through the square groove 23 by pressing down the adjusting handle 22, and the adjusting handle 22 is rotated, so that the adjusting handle 22 is matched with the square block 19 to drive the connecting column 13 to rotate through the square groove 23 when rotating, the valve column 7 is driven to rotate through the connecting column 13, the butterfly plate 8 is driven to rotate when the valve column 7 rotates, the butterfly valve can be opened or closed, when the adjusting handle 22 rotates, the positioning column 16 can be matched with the mounting ring 15 to rotate on the fixing frame 14 and the fixing block 21, after the butterfly valve is opened or closed, the adjusting handle 22 is moved away from the square block 19 under the pushing of the pushing spring 17 through initial opening of the adjusting handle 22, and accidental opening or closing of the butterfly valve can be prevented after the adjusting handle 22 is touched by mistake;
the surface of the connecting column 13 is fixedly connected with a baffle ring 18, the baffle ring 18 is fixedly connected to the bottom of the square block 19, and the surfaces of the lower valve body 1 and the upper valve body 2 are fixedly connected with a flange plate 12;
the butterfly valve can be conveniently installed on a pipeline for use by arranging the flange plate 12, so that the adjusting handle 22 can be positioned and supported by the baffle ring 18 to facilitate the opening or closing of the butterfly valve by the adjusting handle 22;
in the concrete use process, after the butterfly valve is installed in a pipeline with negative pressure, when the butterfly plate 8 is in an open state, the side support of the sealing ring 24 is fixed with the lower valve body 1 and the upper valve body 2 through the set screws, so that the negative pressure resistance of the sealing ring 24 is improved, the pressure deformation injury to the sealing ring 24 caused by the pipeline negative pressure is reduced, the phenomenon that the sealing ring 24 is broken and scrapped due to the fact that the material plastic deformation limit of the sealing ring 24 is exceeded due to the fact that the pipeline negative pressure is born is eliminated, and the whole service life of the valve is effectively prolonged.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.

Claims (8)

1. The utility model provides a high performance is able to bear or endure negative pressure lining butterfly valve, includes lower valve body (1) and last valve body (2), its characterized in that: the valve is characterized in that a side support ring (6) is arranged between the lower valve body (1) and the upper valve body (2), two groups of first installation angles (3) are fixedly connected to the surface of the lower valve body (1), two groups of second installation angles (4) are fixedly connected to the surface of the upper valve body (2), fastening screws (5) are arranged on the first installation angles (3) and the second installation angles (4), the side support ring (6) is fixedly arranged between the lower valve body (1) and the upper valve body (2) through the fastening screws (5) in a matched mode with the first installation angles (3) and the second installation angles (4), a sealing ring (24) is fixedly connected to the inner wall of the side support ring (6), a valve column (7) is movably arranged in the lower valve body (1) and the upper valve body (2), a butterfly plate (8) is fixedly connected to the valve column (7), and the butterfly plate (8) is movably arranged in the side support ring (6), and the surface of the butterfly plate (8) is attached to the inner wall of the sealing ring (24).
2. A high performance negative pressure resistant lined butterfly valve as claimed in claim 1, wherein: the top fixedly connected with fixed section of thick bamboo (9) of last valve body (2), spool (7) movable mounting is in fixed section of thick bamboo (9), the packing groove has been seted up to the upper end of fixed section of thick bamboo (9), be provided with packing (10) in the packing groove.
3. A high performance negative pressure resistant lined butterfly valve as claimed in claim 2, wherein: the top of the fixed cylinder (9) is fixedly provided with a packing gland (11), and the packing gland (11) is tightly pressed on a packing (10) in the packing groove.
4. A high performance negative pressure resistant lined butterfly valve according to claim 3, wherein: the top of gland (11) fixedly connected with mount (14), the fixed surface of mount (14) is fixedly connected with support column (20), fixedly connected with fixed block (21) on support column (20).
5. A high performance negative pressure resistant lined butterfly valve as set forth in claim 4, wherein: the utility model discloses a fixed frame, including fixing frame (14), fixed block (21), push spring (17) and fixed block (21), the top of fixing frame (14) and the equal movable mounting of bottom of fixed block (21) have collar (15), be annular array between collar (15) on fixing frame (14) and the bottom of fixed block (21) and be provided with multiunit reference column (16), multiunit all overlap on reference column (16) and be equipped with push spring (17), slidable mounting has regulation handle (22) on reference column (16), the lower extreme fixed mounting of push spring (17) is at the top of collar (15), the upper end fixed mounting of push spring (17) is in the bottom of regulation handle (22).
6. A high performance negative pressure resistant lined butterfly valve as set forth in claim 5, wherein: the top fixedly connected with spliced pole (13) of valve post (7), spliced pole (13) set up in mount (14), the fixed surface of spliced pole (13) is connected with square block (19), set up on adjusting handle (22) with square groove (23) that square block (19) correspond.
7. A high performance negative pressure resistant lined butterfly valve as set forth in claim 6, wherein: the surface of the connecting column (13) is fixedly connected with a baffle ring (18), and the baffle ring (18) is fixedly connected to the bottom of the square block (19).
8. A high performance negative pressure resistant lined butterfly valve as claimed in claim 1, wherein: the surfaces of the lower valve body (1) and the upper valve body (2) are fixedly connected with flange plates (12).
CN202310918765.2A 2023-07-25 2023-07-25 High-performance negative pressure-resistant lining butterfly valve Pending CN116928358A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310918765.2A CN116928358A (en) 2023-07-25 2023-07-25 High-performance negative pressure-resistant lining butterfly valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310918765.2A CN116928358A (en) 2023-07-25 2023-07-25 High-performance negative pressure-resistant lining butterfly valve

Publications (1)

Publication Number Publication Date
CN116928358A true CN116928358A (en) 2023-10-24

Family

ID=88392132

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310918765.2A Pending CN116928358A (en) 2023-07-25 2023-07-25 High-performance negative pressure-resistant lining butterfly valve

Country Status (1)

Country Link
CN (1) CN116928358A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100992395B1 (en) * 2009-12-31 2010-11-08 서광공업 주식회사 Butterfly valve
CN208982672U (en) * 2018-10-30 2019-06-14 南京埃佳氟流体控制有限公司 A kind of safe and reliable sealing structure of fluoroplastics lining butterfly valve
CN212055875U (en) * 2020-03-10 2020-12-01 江苏明江阀业有限公司 High-performance pneumatic full-lining butterfly valve
CN212839434U (en) * 2020-06-08 2021-03-30 瑞安市南星机械有限公司 Multifunctional butterfly valve without detention
CN218326243U (en) * 2022-08-01 2023-01-17 亮大阀门集团有限公司 Butterfly valve with protective assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100992395B1 (en) * 2009-12-31 2010-11-08 서광공업 주식회사 Butterfly valve
CN208982672U (en) * 2018-10-30 2019-06-14 南京埃佳氟流体控制有限公司 A kind of safe and reliable sealing structure of fluoroplastics lining butterfly valve
CN212055875U (en) * 2020-03-10 2020-12-01 江苏明江阀业有限公司 High-performance pneumatic full-lining butterfly valve
CN212839434U (en) * 2020-06-08 2021-03-30 瑞安市南星机械有限公司 Multifunctional butterfly valve without detention
CN218326243U (en) * 2022-08-01 2023-01-17 亮大阀门集团有限公司 Butterfly valve with protective assembly

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