CN116292927A - Pneumatic flange butterfly valve - Google Patents

Pneumatic flange butterfly valve Download PDF

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Publication number
CN116292927A
CN116292927A CN202310281361.7A CN202310281361A CN116292927A CN 116292927 A CN116292927 A CN 116292927A CN 202310281361 A CN202310281361 A CN 202310281361A CN 116292927 A CN116292927 A CN 116292927A
Authority
CN
China
Prior art keywords
rod
butterfly valve
shaft body
sealing part
deep groove
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202310281361.7A
Other languages
Chinese (zh)
Inventor
金小星
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.)
Chengdu Hecaitong Valve Co ltd
Original Assignee
Chengdu Hecaitong 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 Chengdu Hecaitong Valve Co ltd filed Critical Chengdu Hecaitong Valve Co ltd
Priority to CN202310281361.7A priority Critical patent/CN116292927A/en
Publication of CN116292927A publication Critical patent/CN116292927A/en
Withdrawn legal-status Critical Current

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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
    • 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
    • F16K1/2261—Shaping or arrangements of the sealing the sealing being arranged on the valve member
    • 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
    • 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
    • F16K1/32—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • 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
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • 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
    • F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
    • F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
    • 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
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid

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

Abstract

The invention discloses a pneumatic flange butterfly valve, and relates to the technical field of pneumatic valves. The invention comprises a shell, wherein a spherical cavity is formed in the middle of the shell, a liquid inlet and a liquid outlet which are communicated with the spherical cavity are respectively arranged on two sides of the shell, a fixed end is arranged on the shell, a pneumatic device is arranged on the fixed end, a shaft body is arranged in the shell, the end part of the shaft body penetrates through the fixed end to be in transmission connection with the pneumatic device, and the shaft body is respectively connected with a first sealing part and a second sealing part through two groups of symmetrically distributed connecting parts. According to the invention, in the process that the movable part rotates along with the shaft body, the movable part is driven by the first thread groove to move downwards, so that the included angle formed by the two connecting rods is increased, the bonding tightness between the first sealing part and the second sealing part and the corresponding liquid outlet and liquid inlet is improved, and the sealing effect is improved.

Description

Pneumatic flange butterfly valve
Technical Field
The invention belongs to the technical field of pneumatic valves, and particularly relates to a pneumatic flange butterfly valve.
Background
The pneumatic flange butterfly valve is provided with the pneumatic actuator, the actuating speed of the pneumatic actuator is relatively high, the pneumatic actuator does not need affinity of workers, human resources and time are saved to a great extent, the pneumatic flange butterfly valve is simple in structure, small in size, light in weight and low in manufacturing cost, the pneumatic flange butterfly valve is particularly remarkable in characteristics, the pneumatic flange butterfly valve is installed in a high-altitude dark channel, the pneumatic flange butterfly valve is convenient to control and operate through the two-position five-way electromagnetic valve, flow media can be adjusted, the fluid resistance is small, the effective flow area is large when the pneumatic flange valve with a medium caliber and a large caliber is fully opened, and the pneumatic flange butterfly valve is rapid and labor-saving to open and close.
The sealing performance of the existing butterfly valve is poor, leakage of a sealing end is easy to occur in the very use process, and great waste is caused.
Disclosure of Invention
The invention aims to provide a pneumatic flange butterfly valve, which is characterized in that in the process that a movable part rotates along with a shaft body, a first thread groove drives the movable part to move downwards, an included angle formed by two connecting rods is increased, the bonding tightness between a first sealing part and a second sealing part and a corresponding liquid outlet and liquid inlet is improved, the sealing effect is improved, and the related problems in the background art are solved.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a pneumatic flange butterfly valve, which comprises a shell, wherein a spherical cavity is formed in the middle of the shell, a liquid inlet and a liquid outlet which are communicated with the spherical cavity are respectively formed in two sides of the shell, a fixed end is arranged on the shell, a pneumatic device is arranged on the fixed end, a shaft body is arranged in the shell, the end part of the shaft body penetrates through the fixed end and is in transmission connection with the pneumatic device, and the shaft body is respectively connected with a first sealing part and a second sealing part through two groups of symmetrically distributed connecting parts.
Further, a shaft hole corresponding to the fixed end is formed in the shell, the other end of the shaft body is installed in the shaft hole, and the shaft body is sealed through a sealing ring sleeved on the outer side of the shaft body.
Further, the axes of the liquid inlet and the liquid outlet are perpendicular to the axes of the fixed end and the shaft hole.
Further, two groove bodies are symmetrically arranged on the peripheral side face of the shaft body, a plurality of through holes penetrate through the bottom face of the groove body, a rod seat is arranged in each through hole, an extension portion is sleeved on the outer side of each rod seat, and the end portion of each extension portion is connected with the first sealing portion or the second sealing portion.
Further, the first sealing part is close to one side of the shaft body and is provided with a plurality of first mounting holes, the first mounting holes are in one-to-one correspondence with the through holes, the second sealing part is close to one side of the shaft body and is provided with a plurality of second mounting holes, the second mounting holes are in one-to-one correspondence with the through holes, the extension part comprises an extension rod and a threaded rod, the end part of the extension rod is provided with the threaded rod, the other end part of the extension rod is sleeved on the rod seat, the threaded rod is inserted in the first mounting holes or the second mounting holes, and spiral ribs matched with the threaded rod are arranged in the first mounting holes and the second mounting holes.
Further, the middle part of extension rod is prismatic structure, prismatic structure has cup jointed the rotor plate.
Further, a first deep groove is formed in the bottom end of the shaft body, a second deep groove is expanded at the opening of the first deep groove, the through hole is communicated with the first deep groove, and a movable part is slidably installed in the first deep groove.
Further, the movable part comprises a rod body and a limiting block, the rod body is slidably mounted in the first deep groove, the limiting block mounted at the end part of the rod body is located in the second deep groove, an end cover is mounted in the opening of the second deep groove in a matched mode, and a spring is arranged between the rod body and the bottom of the first deep groove.
Further, a bar-shaped hole corresponding to the through hole is formed in the rod body, the rod seat is connected with the rod body through a connecting rod, and the end part of the connecting rod is installed in the bar-shaped hole.
The invention has the following beneficial effects:
1. in the invention, the movable part moves along the first thread groove in the process of rotating along with the shaft body, so that the movable part is driven by the first thread groove to move downwards, meanwhile, the movable part drives the connecting rod to move downwards, the included angle formed by the two connecting rods is increased, and the rod seat connected with the connecting rod is pushed to move outwards, so that the extension part, the first sealing part and the second sealing part are pushed to move outwards, the bonding tightness of the first sealing part and the second sealing part with the corresponding liquid outlet and liquid inlet is improved, and the sealing effect is improved.
2. According to the invention, the pneumatic device drives the shaft body to rotate 90 degrees, so that the liquid inlet and the liquid outlet are opened, the first thread groove drives the movable part to move upwards in the rotating process, the included angle formed by the two connecting rods is reduced, the distance between the first sealing part and the second sealing part is reduced, friction between the first sealing part and the second sealing part arranged on the inner wall of the shell and the abrasion of the first sealing part and the second sealing part is reduced.
3. According to the invention, the fluid passes through the rotating plate, so that the rotating plate is in a horizontal state, and as the threaded rod rotates, the engagement depth between the threaded protrusions arranged in the first mounting hole or the second mounting hole and the threaded rod is increased, so that the space between the first sealing part and the second sealing part is reduced, the gap exists between the outer side surfaces of the first sealing part and the second sealing part and the inner wall of the shell, and the first sealing part and the second sealing part are prevented from being vibrated by water flow, so that the first sealing part and the second sealing part are prevented from being worn.
Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic view of the internal structure of the present invention;
FIG. 4 is a schematic view of a partial structure of the present invention;
FIG. 5 is a schematic cross-sectional view of FIG. 4 according to the present invention;
FIG. 6 is a schematic view of a part of the movable part according to the present invention;
in the drawings, the list of components represented by the various numbers is as follows:
1. a housing; 101. a shaft hole; 2. a liquid inlet; 3. a liquid outlet; 4. a fixed end; 5. a pneumatic device; 6. a shaft body; 601. a first deep groove; 602. a second deep groove; 603. a through hole; 604. a tank body; 7. a seal ring; 701. a protrusion; 8. a movable part; 801. a rod body; 8011. a bar-shaped hole; 802. a limiting block; 803. a first thread groove; 9. an end cap; 10. a rod seat; 11. an extension; 1101. an extension rod; 1102. a threaded rod; 12. a connecting rod; 13. a spring; 14. a rotating plate; 15. a first sealing part; 1501. a first mounting hole; 16. a second sealing part; 1601. and a second mounting hole.
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.
In the description of the present invention, it should be understood that the terms "open," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like indicate orientation or positional relationships, merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
Referring to fig. 1-6, the invention discloses a pneumatic flange butterfly valve, which comprises a housing 1, wherein a spherical cavity is formed in the middle of the housing 1, a liquid inlet 2 and a liquid outlet 3 which are communicated with the spherical cavity are respectively arranged on two sides of the housing 1, a fixed end 4 is arranged on the housing 1, a pneumatic device 5 is arranged on the fixed end 4, a shaft body 6 is arranged in the housing 1, the end part of the shaft body 6 penetrates through the fixed end 4 and is in transmission connection with the pneumatic device 5, and the shaft body 6 is respectively connected with a first sealing part 15 and a second sealing part 16 through two groups of symmetrically distributed connecting parts.
The shell 1 is provided with a shaft hole 101 corresponding to the fixed end 4, the other end of the shaft body 6 is arranged in the shaft hole 101, and the shell is sealed by a sealing ring 7 sleeved outside the shaft body 6.
The axes of the liquid inlet 2 and the liquid outlet 3 are perpendicular to the axes of the fixed end 4 and the shaft hole 101.
The connecting portion comprises a rod seat 10 and an extension portion 11, two groove bodies 604 are symmetrically arranged on the peripheral side face of the shaft body 6, a plurality of through holes 603 penetrate through the bottom face of the groove bodies 604, the rod seat 10 is arranged in the through holes 603, the extension portion 11 is sleeved on the outer side of the rod seat 10, and the end portion of the extension portion 11 is connected with the first sealing portion 15 or the second sealing portion 16.
The first sealing part 15 is close to one side surface of the shaft body 6 and is provided with a plurality of first mounting holes 1501, the first mounting holes 1501 are in one-to-one correspondence with the through holes 603, the second sealing part 16 is close to one side surface of the shaft body 6 and is provided with a plurality of second mounting holes 1601, the second mounting holes 1601 are in one-to-one correspondence with the through holes 603, the extension part 11 comprises an extension rod 1101 and a threaded rod 1102, the end part of the extension rod 1101 is provided with the threaded rod 1102, the other end part of the extension rod 1101 is sleeved on the rod seat 10, the threaded rod 1102 is inserted into the first mounting holes 1501 or the second mounting holes 1601, and spiral ribs matched with the threaded rod 1102 are arranged in the first mounting holes 1501 and the second mounting holes 1601.
The middle of the extension rod 1101 is a prismatic structure, and the rotary plate 14 is sleeved on the prismatic structure.
The bottom of the shaft body 6 is provided with a first deep groove 601, the opening of the first deep groove 601 is expanded with a second deep groove 602, a through hole 603 is communicated with the first deep groove 601, and a movable part 8 is slidably arranged in the first deep groove 601.
The movable part 8 comprises a rod body 801 and a limiting block 802, wherein the rod body 801 is slidably installed in the first deep groove 601, the limiting block 802 installed at the end part of the rod body 801 is located in the second deep groove 602, the end cover 9 is installed in the opening of the second deep groove 602 in a matched mode, and a spring 13 is arranged between the rod body 801 and the bottom of the first deep groove 601.
The rod body 801 positioned outside the limiting block 802 is provided with a first thread groove 803, the rod body 801 positioned outside the limiting block 802 is arranged on the sealing ring 7, and the sealing ring 7 is internally provided with a protrusion 701 matched with the first thread groove 803;
the rod body 801 is provided with a strip-shaped hole 8011 corresponding to the through hole 603, the rod seat 10 is connected with the rod body 801 through a connecting rod 12, and the end part of the connecting rod 12 is arranged in the strip-shaped hole 8011.
When the sealing device is used, the movable part 5 drives the shaft body 6 to rotate 90 degrees, the sealing of the liquid inlet 2 and the liquid outlet 3 is realized, the closing of the valve body is realized, as the end part of the rod body 801 provided with the first thread groove 803 in the movable part 8 is arranged in the sealing ring 7, the bulge 701 matched with the first thread groove 803 is arranged in the sealing ring 7, the movable part 8 moves along the first thread groove 803 in the process of following the rotation of the shaft body 6, the first thread groove 803 drives the movable part 8 to move downwards, meanwhile, the movable part 8 drives the connecting rod 12 to move downwards, the increase of an included angle formed by the two connecting rods 12 is realized, and the rod seat 10 connected with the connecting rod 12 is pushed to move outwards, so that the sealing effect is improved, the joint tightness between the first sealing part 15 and the second sealing part 16 and the corresponding liquid outlet 3 and the liquid inlet 2 is also improved, and the sealing effect is improved;
the pneumatic device 5 drives the shaft body 6 to rotate 90 degrees, so that the liquid inlet 2 and the liquid outlet 3 are opened, the first thread groove 803 drives the movable part 8 to move upwards in the rotating process, the included angle formed by the two connecting rods 12 is reduced, the distance between the first sealing part 15 and the second sealing part 16 is reduced, friction between the first sealing part 15 and the second sealing part 16 arranged on the inner wall of the shell 1 and abrasion of the first sealing part 15 and the second sealing part 16 are avoided;
in addition, the rotating plate 14 is vertically arranged, when the liquid inlet 2 and the liquid outlet 3 are communicated, fluid passes through the rotating plate 14, so that the rotating plate 14 is in a horizontal state, as the extension rod 1101 is connected with the rod seat 10 through the limiting ring, in the process that the provided extension rod 1101 drives the threaded rod 1102 to rotate, the threaded rod seat 10 is not affected, as the engagement depth between the threaded protrusions of the first mounting holes 1501 or the second mounting holes 1502 and the threaded rod 1102 is increased when the threaded rod 1102 rotates, the space between the first sealing part 15 and the second sealing part 16 is reduced, the gap between the outer side surfaces of the first sealing part 15 and the second sealing part 16 and the inner wall of the shell 1 is realized, the water flow is prevented from driving the first sealing part 15 and the second sealing part 16 to vibrate, the abrasion of the first sealing part 15 and the second sealing part 16 is caused, when the valve body is closed, partial water flow flows in the gradually reduced gap, the resistance when the first sealing part 15 and the second sealing part 16 are closed is reduced, and the valve body is completely closed when the valve body is rotated to 90 degrees.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.

Claims (9)

1. The utility model provides a pneumatic flange butterfly valve, includes casing (1), its characterized in that:
a spherical cavity is formed in the middle of the shell (1), and a liquid inlet (2) and a liquid outlet (3) which are communicated with the spherical cavity are respectively formed in two sides of the shell (1);
a fixed end (4) is arranged on the shell (1), and a pneumatic device (5) is arranged on the fixed end (4);
a shaft body (6) is arranged in the shell (1), and the end part of the shaft body (6) penetrates through the fixed end (4) to be in transmission connection with the pneumatic device (5);
the shaft body (6) is respectively connected with the first sealing part (15) and the second sealing part (16) through two groups of symmetrically distributed connecting parts.
2. The pneumatic flange butterfly valve according to claim 1, wherein the housing (1) is provided with a shaft hole (101) corresponding to the fixed end (4), the other end of the shaft body (6) is installed in the shaft hole (101), and the butterfly valve is sealed by a sealing ring (7) sleeved on the outer side of the shaft body (6).
3. A pneumatic flange butterfly valve according to claim 2, characterized in that the axes of the liquid inlet (2) and the liquid outlet (3) are perpendicular to the axes of the fixed end (4) and the shaft hole (101).
4. The pneumatic flange butterfly valve according to claim 1, wherein two groove bodies (604) are symmetrically arranged on the peripheral side surface of the shaft body (6), and a plurality of through holes (603) are formed in the bottom surface of the groove body (604) in a penetrating manner;
the rod seat (10) is arranged in the through hole (603), an extension part (11) is sleeved on the outer side of the rod seat (10), and the end part of the extension part (11) is connected with the first sealing part (15) or the second sealing part (16).
5. A pneumatic flange butterfly valve according to claim 4, characterized in that the first sealing part (15) is close to one side of the shaft body (6) and is provided with a plurality of first mounting holes (1501), and the first mounting holes (1501) are in one-to-one correspondence with the through holes (603);
the second sealing part (16) is close to one side surface of the shaft body (6) and is provided with a plurality of second mounting holes (1601), and the second mounting holes (1601) are in one-to-one correspondence with the through holes (603);
extension (11) are including extension pole (1101) and threaded rod (1102), threaded rod (1102) are installed to the tip of extension pole (1101), another tip of extension pole (1101) cup joints on pole seat (10), threaded rod (1102) are pegged graft in first mounting hole (1501) or second mounting hole (1601), all be equipped with in first mounting hole (1501) and second mounting hole (1601) with threaded rod (1102) complex spiral bead.
6. A butterfly valve according to claim 5, characterized in that the middle part of the extension rod (1101) is a prismatic structure, on which a rotating plate (14) is sleeved.
7. The pneumatic flange butterfly valve according to claim 4, wherein a first deep groove (601) is formed in the bottom end of the shaft body (6), a second deep groove (602) is expanded at the opening of the first deep groove (601), and the through hole (603) is communicated with the first deep groove (601);
the first deep groove (601) is internally provided with a movable part (8).
8. The pneumatic flange butterfly valve according to claim 7, wherein the movable portion (8) comprises a rod body (801) and a limiting block (802), the rod body (801) is slidably mounted in the first deep groove (601), the limiting block (802) mounted at the end of the rod body (801) is located in the second deep groove (602), and an end cover (9) is mounted in an opening of the second deep groove (602) in a matched manner;
a spring (13) is arranged between the rod body (801) and the bottom of the first deep groove (601).
9. The pneumatic flange butterfly valve according to claim 8, wherein the rod body (801) is provided with a strip-shaped hole (8011) corresponding to the through hole (603), the rod seat (10) is connected with the rod body (801) through a connecting rod (12), and the end part of the connecting rod (12) is installed in the strip-shaped hole (8011).
CN202310281361.7A 2023-03-22 2023-03-22 Pneumatic flange butterfly valve Withdrawn CN116292927A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310281361.7A CN116292927A (en) 2023-03-22 2023-03-22 Pneumatic flange butterfly valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310281361.7A CN116292927A (en) 2023-03-22 2023-03-22 Pneumatic flange butterfly valve

Publications (1)

Publication Number Publication Date
CN116292927A true CN116292927A (en) 2023-06-23

Family

ID=86816485

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310281361.7A Withdrawn CN116292927A (en) 2023-03-22 2023-03-22 Pneumatic flange butterfly valve

Country Status (1)

Country Link
CN (1) CN116292927A (en)

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WW01 Invention patent application withdrawn after publication

Application publication date: 20230623

WW01 Invention patent application withdrawn after publication