CN116697059A - Butterfly valve - Google Patents

Butterfly valve Download PDF

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Publication number
CN116697059A
CN116697059A CN202310815775.3A CN202310815775A CN116697059A CN 116697059 A CN116697059 A CN 116697059A CN 202310815775 A CN202310815775 A CN 202310815775A CN 116697059 A CN116697059 A CN 116697059A
Authority
CN
China
Prior art keywords
sleeve
protective shell
chute
worm
rotating
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
CN202310815775.3A
Other languages
Chinese (zh)
Inventor
姜慧攀
沈嘉逸
姜振光
潘连明
裴琦
冉文飞
姚小勇
冯桥勇
荣杰
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.)
Hangda Valve Group Co ltd
Original Assignee
Hangda Valve 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 Hangda Valve Group Co ltd filed Critical Hangda Valve Group Co ltd
Priority to CN202310815775.3A priority Critical patent/CN116697059A/en
Publication of CN116697059A publication Critical patent/CN116697059A/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
    • 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
    • F16K1/32—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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/53—Mechanical actuating means with toothed gearing
    • 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
    • F16K35/02—Means to prevent accidental or unauthorised actuation to be locked or disconnected by means of a pushing or pulling action
    • F16K35/022—Means to prevent accidental or unauthorised actuation to be locked or disconnected by means of a pushing or pulling action the locking mechanism being actuated by a separate actuating element
    • F16K35/025—Means to prevent accidental or unauthorised actuation to be locked or disconnected by means of a pushing or pulling action the locking mechanism being actuated by a separate actuating element said actuating element being operated manually (e.g. a push-button located in the valve actuator)

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

Abstract

The invention provides a butterfly valve which is not easy to be opened and closed by mistake by an irrelevant person, comprising a valve body, a valve shaft vertically arranged at the inner center of the valve body, a butterfly plate arranged on the valve shaft, a valve seat arranged in the valve body and used for sealing with the butterfly plate, and a protective shell arranged on the valve body, wherein a worm is rotatably arranged in the protective shell, one end of the worm is positioned outside the protective shell, the valve shaft penetrates out of the valve body and is positioned in the protective shell, a worm wheel matched with the worm is fixedly arranged on the valve shaft, an encryption device used for preventing the irrelevant person from rotating the worm is arranged between the valve shaft and the protective shell, and the encryption device comprises: the chuck arranged on the valve shaft and the claw which is rotatably arranged in the protective shell and is clamped with the chuck through the rotating device are arranged on the protective shell, and a control device for controlling the claw to rotate by a worker is further arranged on the protective shell.

Description

Butterfly valve
Technical Field
The invention relates to the technical field of valves, in particular to a butterfly valve.
Background
The butterfly valve is a simple-structure regulating valve, and can be used for controlling the opening and closing of low-pressure pipeline media, wherein the butterfly valve is a valve in which a closing member is a disc and rotates around a valve shaft to achieve opening and closing, and the valve can be used for controlling the flow of various fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metals, radioactive media and the like, and mainly plays roles of cutting off and throttling on a pipeline.
The butterfly valve is widely and widely applied in pipeline connection at present, and places of application are more and more, so that a large number of hands are inconvenient to manage closely for a long time, the hands are only arranged to contact when the butterfly valve is used, and the butterfly valve is opened more and more conveniently due to continuous improvement of the butterfly valve, so that the butterfly valve is easily opened and closed by irrelevant people in places with more people, water resource waste is caused, or a pipeline conveying system is caused to fail, and social resources are wasted.
Disclosure of Invention
Therefore, the invention provides a butterfly valve which is not easy to be opened or closed by mistake by irrelevant persons.
In order to achieve the above object, the present invention provides a butterfly valve, including a valve body, a valve shaft vertically disposed at an inner center of the valve body, a butterfly plate disposed on the valve shaft, a valve seat disposed in the valve body and used for sealing with the butterfly plate, and a protective housing disposed on the valve body, wherein a worm is rotatably disposed in the protective housing, one end of the worm is located outside the protective housing, the valve shaft penetrates out of the valve body and is located in the protective housing, a worm wheel matched with the worm is fixedly disposed on the valve shaft, an encryption device for preventing an unrelated person from rotating the worm is disposed between the valve shaft and the protective housing, the encryption device includes: the chuck arranged on the valve shaft and the claw which is rotatably arranged in the protective shell and is clamped with the chuck through the rotating device are arranged on the protective shell, and a control device for controlling the claw to rotate by a worker is further arranged on the protective shell.
The further improvement is that: the rotating device comprises: the rotary rod is provided with a claw.
The further improvement is that: the control device includes: the long gear is fixedly arranged on the first rotating rod, and the short gear is arranged in the protective shell through the encryption pressing device and used for driving the long gear to rotate positively and negatively.
The further improvement is that: the encryption pressing apparatus includes: the sleeve in the protective housing through the direction resetting means set up in sleeve, through slider around set up in catch bar on the protective housing, set up and be used for making the sleeve take place pivoted front and back rotating device when the user presses the sleeve between sleeve and protective housing, be provided with the second bearing in the sleeve, the one end that the catch bar is located the protective housing is connected with the second bearing and is used for making the catch bar promote the sleeve and can rotate when the sleeve, be provided with the short gear on the sleeve.
The further improvement is that: the guide resetting device includes: the guide rod is arranged in the protective shell, is positioned on one side, away from the chuck, of the rotating rod, is parallel to the rotating rod, the size of the guide rod is matched with the inner diameter of the sleeve, the sleeve is sleeved on the guide rod, the spring is sleeved on the guide rod, and one end of the spring resists against one end of the protective shell, and resists against one end, close to the guide rod, of the sleeve.
The further improvement is that: the slip device includes: the anti-rotation device comprises a protective shell, a sliding barrel, a sliding channel, an anti-rotation block, a push rod, an anti-rotation groove and a push rod, wherein the sliding barrel is fixedly arranged on the protective shell, the sliding channel is arranged on the sliding barrel and the protective shell in a penetrating mode, the anti-rotation block is arranged in the sliding channel, and the push rod is provided with the anti-rotation groove matched with the anti-rotation block.
The further improvement is that: the front-rear rotation device includes: the two rotating grooves are formed in the sleeve in the opposite direction, and the two annular blocks are arranged at the top of the protective shell through the magnetic attraction and repulsion device and are respectively matched with the two rotating grooves in the sleeve.
The further improvement is that: the magnetic attraction and repulsion device comprises: the movable limiting column is arranged on the protective shell and used for avoiding the movement of the ring block when the ring block is stressed, the lowest point of the movable limiting column is higher than the height of the sleeve, and the lowest point of the pressing block is higher than the height of the sleeve when the strong magnetic block is adsorbed on the protective shell.
The further improvement is that: the rotating groove includes: the sleeve is provided with at least one first chute which is arranged on the sleeve and axially along the sleeve, and at least one second chute which is obliquely arranged on the sleeve, wherein one end of the lowest point of the second chute is communicated with one end of the highest point of the first chute and is provided with a height difference, so that when the sleeve moves to the position, where the ring block is located at the highest point of the first chute, the ring block can fall into the second chute to enable the sleeve to move along the track of the second chute, and one end of the highest point of the second chute is communicated with one end of the lowest point of the first chute and is provided with a height difference, so that when the sleeve moves to the position, where the ring block is located at the highest point of the second chute, the ring can quickly fall into the first chute to enable the sleeve to move along the track of the first chute.
The invention has the advantages and beneficial effects that:
the novel valve is simple in structure, the protection shell is arranged to wrap and protect the main opening and closing parts, the encryption device is arranged between the protection shell and the valve shaft, the valve can be opened and closed only after a worker operates according to relevant steps, irrelevant people can only see the push rod, the worm and the protection shell, the internal structure of the novel valve cannot be known, the valve cannot be opened and closed by simple operation of the novel valve, risks caused by incorrect opening and closing of the novel valve are reduced, and waste of social resources is reduced.
Drawings
FIG. 1 is a schematic diagram of a butterfly valve in front view according to the present invention;
FIG. 2 is a schematic top cross-sectional view of a butterfly valve of the invention;
FIG. 3 is a schematic top view of a butterfly valve of the invention;
FIG. 4 is a schematic view of a butterfly valve sleeve and ring contact state according to the present invention;
FIG. 5 is a schematic illustration of a non-contacting state of a butterfly valve sleeve and ring block according to the present invention;
FIG. 6 is an enlarged partial cross-sectional schematic view of a butterfly valve portion A according to the present invention;
in the figure: 1. a valve body; 2. a valve shaft; 3. a butterfly plate; 4. a valve seat; 5. a protective shell; 6. a worm; 7. a worm wheel; 8. a chuck; 9. a claw; 10. a first bearing; 11. a rotating lever; 12. a long gear; 13. a short gear; 14. a sleeve; 15. a push rod; 16. a second bearing; 17. a guide rod; 18. a spring; 19. a slide cylinder; 20. a slip path; 21. an anti-rotation block; 22. an anti-rotation groove; 23. a ring block; 24. a strong magnetic block; 25. moving the limit column; 26. marking points; 27. a first chute; 28. a second chute; 29. a hand wheel; 30. pressing the blocks.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings and examples. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.
As shown in fig. 1 to 6, the technical scheme of the present invention is to provide a butterfly valve, including a valve body 1, a valve shaft 2 vertically disposed at an inner center of the valve body 1, a butterfly plate 3 disposed on the valve shaft 2, a valve seat 4 disposed in the valve body 1 and used for sealing with the butterfly plate 3, and a protective housing 5 disposed on the valve body 1, a worm 6 is rotatably disposed in the protective housing 5, one end of the worm 6 is located outside the protective housing 5, the valve shaft 2 penetrates out of the valve body 1 and is located in the protective housing 5, a worm wheel 7 matched with the worm 6 is fixedly disposed on the valve shaft 2, an encryption device used for preventing an unrelated person from rotating the worm 6 is disposed between the valve shaft 2 and the protective housing 5, and the encryption device includes: the chuck 8 arranged on the valve shaft 2 and the claw 9 rotatably arranged in the protective shell 5 through the rotating device and used for being clamped with the chuck 8, and the protective shell 5 is also provided with a control device for controlling the claw 9 to rotate by workers.
In order to allow smooth rotation of the jaws 9, the rotation means comprise: the device comprises a first bearing 10 and a rotating rod 11, wherein the first bearing 10 and the rotating rod 11 are respectively arranged on the left side and the right side in the protective shell 5, the rotating rod 11 is arranged on the first bearing 10, and a claw 9 is arranged on the rotating rod 11.
In order to facilitate the operator to control the rotation of the rotation lever 11 externally, the control device comprises: the long gear 12 fixedly arranged on the first rotating rod 11, the short gear 13 arranged in the protective shell 5 through the encryption pressing device and used for driving the long gear 12 to rotate positively and negatively, and the clamping jaw 9 can be arranged on the long gear 12.
In order to avoid an irrelevant person turning the turning lever 11 and the worm 6, the encryption pressing means comprises: the sleeve 14 in the protective housing 5 through the direction resetting means, through the slider set up in the catch bar 15 on the protective housing 5 that can slide back and forth, set up in the front and back rotary device that is used for making sleeve 14 take place pivoted when the user presses sleeve 14 between sleeve 14 and protective housing 5, be provided with second bearing 16 in the sleeve 14, the one end that catch bar 15 is located the protective housing 5 is connected with second bearing 16 and is used for making the catch bar 15 promote sleeve 14 when sleeve 14 can rotate, be provided with short gear 13 on the sleeve 14.
In order to allow the sleeve 14 to be pressed, the guide return means comprise: the guide rod 17 is arranged in the protective shell 5 and is positioned at one side of the rotating rod 11 far away from the chuck 8 and parallel to the rotating rod 11, the size of the guide rod 17 is matched with the inner diameter of the sleeve 14, the sleeve 14 is sleeved on the guide rod 17, the spring 18 is sleeved on the guide rod 17, and one end of the spring 18 resists against one end of the protective shell 5 and resists against one end of the sleeve 14 close to the guide rod 17.
In order to prevent the push rod 15 from being turned by an unrelated person and to slide back and forth, the sliding device comprises: the anti-rotation device comprises a sliding barrel 19 fixedly arranged on a protective shell 5, a sliding channel 20 penetrating through the sliding barrel 19 and the protective shell 5, and an anti-rotation block 21 arranged in the sliding channel 20, wherein a push rod 15 penetrates through the sliding channel 20, and an anti-rotation groove 22 matched with the anti-rotation block 21 is further formed in the push rod 15.
In order to enable the sleeve 14 to rotate forward and backward so as to drive the clamping jaw 9 to release the clamping and re-clamping, the front-back rotation device comprises: the two rotating grooves are formed in the sleeve 14 in opposite directions, and the two annular blocks 23 are arranged at the top of the protective shell 5 through the magnetic repulsion device and are respectively matched with the two rotating grooves in the sleeve 14.
In order that the sleeve 14 will not rotate when an external person presses the push rod 15 and that only the staff can control the movement of the ring block 23, the magnetic repelling device comprises: the device is characterized in that the device is arranged at the bottom of the ring block 23 and is used for being adsorbed on the protective shell 5 or driving the ring block 23 to be compressed on a strong magnetic block 24 on a rotating groove when being repelled by an external strong magnetic block 24, and a movable limiting column 25 which is arranged on the protective shell 5 and is used for avoiding the movement of the ring block 23 due to the force, the lowest point of the movable limiting column 25 is higher than the height of the sleeve 14, the lowest point of the pressing block is higher than the height of the sleeve 14 when the strong magnetic block 24 is adsorbed on the protective shell 5, a marking point 26 which is convenient for searching the position of the ring block 23 by using the same can be arranged on the external shell, and a worker can conveniently place another strong magnetic block 24 with magnetic force repellent with the strong magnetic block 24, so that the ring block 23 is pushed into the rotating groove, and the marking point 26 can be omitted, and the corresponding searching can be carried out only through the related file data of the butterfly valve, thereby improving the safety.
In order to allow the sleeve 14 to rotate along a track when it is subjected to forces in the fore-and-aft direction and the blocking of the ring block 23, the rotation groove comprises: the sleeve 14 comprises at least one first chute 27 which is arranged on the sleeve 14 and is arranged along the axial direction of the sleeve 14, and at least one second chute 28 which is obliquely arranged on the sleeve 14, wherein one end of the lowest point of the second chute 28 is communicated with one end of the highest point of the first chute 27, the height difference is used for enabling the ring block 23 to fall into the second chute 28 when the sleeve 14 moves to the position that the ring block 23 is positioned at the highest point of the first chute 27 so as to enable the sleeve 14 to move along the track of the second chute 28, one end of the highest point of the second chute 28 is communicated with one end of the lowest point of the first chute 27, the height difference is used for enabling the ring block 14 to fall into the first chute 27 when the sleeve 14 moves to the position that the ring block 23 is positioned at the highest point of the second chute 28 so as to enable the sleeve 14 to move along the track of the first chute 27, and the initial state of the ring block is positioned right above the lowest point of the first chute.
In order to enhance convenience, a hand wheel 29 which is convenient for rotating the worm is detachably arranged on the worm, and a pressing block 30 which is used for preventing the pushing rod from penetrating into the protective shell and is convenient for a user to press the pushing rod is further arranged on the outer side of the protective shell.
Working principle: when the magnetic force-saving worm 6 is used, the other magnetic block which is magnetically repulsed with the strong magnetic block 24 on the clamping block is placed on the protective shell 5, so that the clamping block falls into the lowest point of the first chute 27 under the influence of repulsive force, a user keeps the magnetic block attached to the protective shell 5, pushes the push rod 15 to drive the sleeve 14 to move backwards, so that the ring block 23 falls into the second chute 28 in the first chute 27, the user releases the elasticity to push the sleeve 14 to move when the hand is released, and the sleeve 14 can only move along the track of the second chute 28 due to the fact that the ring block 23 is positioned in the second chute 28, and rotates while sliding, the short gear 13 is driven to rotate, the long gear 12 is driven to rotate, then the user can gradually drive the rotary rod 11 to rotate for a plurality of times to release the clamping of the clamping jaw 9 and the chuck 8, and then the strong magnetic block 24 is adsorbed onto the protective shell 5 again, and the user can rotate the worm 6.
After the use is completed, the user places the magnetic block at the position of the other ring block 23, and the claw 9 and the chuck 8 can be clamped together again by repeating the steps, so that encryption is completed.
When the magnetic block is not used, so that the ring block is pressed in the rotating groove, irrelevant personnel push the push rod and only drive the push rod and the sleeve to slide back and forth, and the clamping of the clamping jaw and the chuck can not be released.
While the basic principles and main features of the present invention and advantages thereof have been shown and described, it will be understood by those skilled in the art that the present invention is not limited by the foregoing embodiments, which are described merely by way of illustration of the principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents.

Claims (9)

1. The utility model provides a butterfly valve, includes valve body, vertical setting at the valve shaft of the inside center of valve body, set up in the butterfly plate on the valve shaft, set up in be used for with the sealed disk seat of butterfly plate in the valve body, set up in protective housing on the valve body, rotatable worm and worm one end are located the protective housing outside of being provided with in the protective housing, the valve shaft is worn out the valve body and is located the protective housing, fixed being provided with on the valve shaft with worm matched with worm wheel, be provided with the encryption device who is used for preventing irrelevant personage's rotation worm between valve shaft and the protective housing, its characterized in that: the encryption device includes: the chuck arranged on the valve shaft and the claw which is rotatably arranged in the protective shell and is clamped with the chuck through the rotating device are arranged on the protective shell, and a control device for controlling the claw to rotate by a worker is further arranged on the protective shell.
2. A butterfly valve according to claim 1, wherein: the rotating device comprises: the rotary rod is provided with a claw.
3. A butterfly valve according to claim 2, wherein: the control device includes: the long gear is fixedly arranged on the first rotating rod, and the short gear is arranged in the protective shell through the encryption pressing device and used for driving the long gear to rotate positively and negatively.
4. A butterfly valve according to claim 3, wherein: the encryption pressing apparatus includes: the sleeve in the protective housing through the direction resetting means set up in sleeve, through slider around set up in catch bar on the protective housing, set up and be used for making the sleeve take place pivoted front and back rotating device when the user presses the sleeve between sleeve and protective housing, be provided with the second bearing in the sleeve, the one end that the catch bar is located the protective housing is connected with the second bearing and is used for making the catch bar promote the sleeve and can rotate when the sleeve, be provided with the short gear on the sleeve.
5. A butterfly valve according to claim 4, wherein: the guide resetting device includes: the guide rod is arranged in the protective shell, is positioned on one side, away from the chuck, of the rotating rod, is parallel to the rotating rod, the size of the guide rod is matched with the inner diameter of the sleeve, the sleeve is sleeved on the guide rod, the spring is sleeved on the guide rod, and one end of the spring resists against one end of the protective shell, and resists against one end, close to the guide rod, of the sleeve.
6. A butterfly valve according to claim 4, wherein: the slip device includes: the anti-rotation device comprises a protective shell, a sliding barrel, a sliding channel, an anti-rotation block, a push rod, an anti-rotation groove and a push rod, wherein the sliding barrel is fixedly arranged on the protective shell, the sliding channel is arranged on the sliding barrel and the protective shell in a penetrating mode, the anti-rotation block is arranged in the sliding channel, and the push rod is provided with the anti-rotation groove matched with the anti-rotation block.
7. A butterfly valve according to claim 4, wherein: the front-rear rotation device includes: the two rotating grooves are formed in the sleeve in the opposite direction, and the two annular blocks are arranged at the top of the protective shell through the magnetic attraction and repulsion device and are respectively matched with the two rotating grooves in the sleeve.
8. A butterfly valve according to claim 7, wherein: the magnetic attraction and repulsion device comprises: the movable limiting column is arranged on the protective shell and used for avoiding the movement of the ring block when the ring block is stressed, the lowest point of the movable limiting column is higher than the height of the sleeve, and the lowest point of the pressing block is higher than the height of the sleeve when the strong magnetic block is adsorbed on the protective shell.
9. A butterfly valve according to claim 7, wherein: the rotating groove includes: the sleeve is provided with at least one first chute which is arranged on the sleeve and axially along the sleeve, and at least one second chute which is obliquely arranged on the sleeve, wherein one end of the lowest point of the second chute is communicated with one end of the highest point of the first chute and is provided with a height difference, so that when the sleeve moves to the position, where the ring block is located at the highest point of the first chute, the ring block can fall into the second chute to enable the sleeve to move along the track of the second chute, and one end of the highest point of the second chute is communicated with one end of the lowest point of the first chute and is provided with a height difference, so that when the sleeve moves to the position, where the ring block is located at the highest point of the second chute, the ring can quickly fall into the first chute to enable the sleeve to move along the track of the first chute.
CN202310815775.3A 2023-07-05 2023-07-05 Butterfly valve Pending CN116697059A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310815775.3A CN116697059A (en) 2023-07-05 2023-07-05 Butterfly valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310815775.3A CN116697059A (en) 2023-07-05 2023-07-05 Butterfly valve

Publications (1)

Publication Number Publication Date
CN116697059A true CN116697059A (en) 2023-09-05

Family

ID=87833938

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310815775.3A Pending CN116697059A (en) 2023-07-05 2023-07-05 Butterfly valve

Country Status (1)

Country Link
CN (1) CN116697059A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116928364A (en) * 2023-09-18 2023-10-24 欧冠阀门科技有限公司 Flow-regulating pressure regulating valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116928364A (en) * 2023-09-18 2023-10-24 欧冠阀门科技有限公司 Flow-regulating pressure regulating valve
CN116928364B (en) * 2023-09-18 2023-11-28 欧冠阀门科技有限公司 Flow-regulating pressure regulating valve

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