CN117108756A - Novel double-flange butterfly valve - Google Patents

Novel double-flange butterfly valve Download PDF

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Publication number
CN117108756A
CN117108756A CN202311320963.5A CN202311320963A CN117108756A CN 117108756 A CN117108756 A CN 117108756A CN 202311320963 A CN202311320963 A CN 202311320963A CN 117108756 A CN117108756 A CN 117108756A
Authority
CN
China
Prior art keywords
valve
rod
gear
rotating
driving
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
CN202311320963.5A
Other languages
Chinese (zh)
Inventor
项秉椿
储金苗
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.)
Luogong Valve Zhejiang Co ltd
Original Assignee
Luogong Valve Zhejiang 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 Luogong Valve Zhejiang Co ltd filed Critical Luogong Valve Zhejiang Co ltd
Priority to CN202311320963.5A priority Critical patent/CN117108756A/en
Publication of CN117108756A publication Critical patent/CN117108756A/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
    • F16K1/221—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
    • 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
    • F16K1/52—Means for additional adjustment of the rate of flow
    • 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/53—Mechanical actuating means with toothed gearing
    • F16K31/535—Mechanical actuating means with toothed gearing 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K35/00—Means to prevent accidental or unauthorised actuation
    • 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
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
    • F16K47/023—Means in valves for absorbing fluid energy for preventing water-hammer or noise for preventing water-hammer, e.g. damping of the valve movement

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Lift Valve (AREA)

Abstract

The invention provides a novel double-flange butterfly valve capable of preventing a gate valve and a waterproof hammer from being opened randomly by others, which comprises a valve body, a valve cover, a water inlet channel, a water outlet channel, a valve plate and a sliding block, wherein the valve body is provided with a valve rod, a worm gear case is arranged in the valve cover, an opening and closing rod is penetrated in the worm gear case in a rotating way, a worm is arranged on the worm gear case in a rotating way, the worm and the worm gear are meshed and driven, the sliding block is arranged in the valve cover in a sliding way, the sliding block is rotationally provided with a rotating block, the sliding block slides to the valve rod and the opening and closing rod to enable the valve rod to be linked with the opening and closing rod through a clamping device, the valve body is rotationally provided with a rotating rod at the water inlet channel, one end of the rotating rod penetrates through the water inlet channel, the rotating rod is provided with a baffle plate in the water inlet channel, the other end of the rotating rod is positioned outside the valve body, and a sliding device for driving the sliding block to slide and the rotating rod to rotate in the valve cover.

Description

Novel double-flange butterfly valve
Technical Field
The invention relates to the technical field of valves, in particular to a novel double-flange butterfly valve.
Background
With the development of society, pipeline connection is required in both production and life, and pipeline connection is required to be applied to pipeline connectors, wherein a double-flange butterfly valve is one of the pipeline connectors which are frequently used. The existing butterfly valve is easy to open, so that the butterfly valve is easy to damage production due to malicious opening by other people, and waste of living water resources is easy to cause. Meanwhile, after the butterfly valve is closed, a water hammer is generated, so that the butterfly valve is hit, the disc plate is easy to damage, and the service life of the butterfly valve is influenced.
To solve this problem, the present invention has been made.
Disclosure of Invention
Therefore, in order to solve the problems, the invention provides a novel double-flange butterfly valve capable of preventing other people from opening a gate valve and a waterproof hammer at will.
In order to solve the technical problems, the novel double-flange butterfly valve comprises a valve body, a valve cover arranged on the valve body, a water inlet channel and a water outlet channel which are arranged on the valve body, a valve plate arranged between the water inlet channel and the water outlet channel, and a sliding block, wherein the valve body is provided with a valve rod, one end of the valve rod is connected with the valve plate, the other end of the valve rod penetrates through the valve cover, a worm gear case is arranged in the valve cover, an opening and closing rod is rotatably arranged in the worm gear case, a worm is rotatably arranged on the worm gear case, the worm is in meshed transmission with the worm gear, the sliding block is slidably arranged in the valve cover, the sliding block is rotatably provided with a rotating block, the sliding block slides to the valve rod and the opening and closing rod through a clamping device, the valve rod is rotatably arranged at the position of the water inlet channel, one end of the rotating rod penetrates through the water inlet channel, a baffle is arranged in the valve rod, the other end of the rotating rod is arranged outside the valve body, and a sliding device for driving the sliding block to slide and the rotating rod is arranged in the valve cover.
Further improved are: the sliding device comprises a sliding rod, the sliding rod is arranged in a valve cover in a sliding mode, a first gear row is arranged on the sliding rod, a first gear is arranged in the valve cover in a rotating mode, the first gear is in meshed transmission with the first gear row, a transmission rod is arranged on the valve cover in a sliding mode, one end of the transmission rod is located outside the valve cover, the other end of the transmission rod is located in the valve cover, a side gear row is arranged on the side face of the transmission rod, a rotating gear is arranged on the rotating rod, the rotating gear is in meshed transmission with the side gear row, and a linkage device used for driving the first gear to rotate to push the sliding rod to slide and simultaneously push the transmission rod to slide to drive the rotating gear to rotate is arranged on the valve cover.
Further improved are: the linkage device comprises a driving shaft, the driving shaft is rotationally arranged in the valve cover, one end of the driving shaft is provided with a first conical tooth, the other end of the driving shaft is provided with a second gear, the valve cover is rotationally provided with a first rotating shaft, the first gear is arranged on the first rotating shaft, the other end of the first rotating shaft is provided with a second conical tooth, the first conical tooth is meshed with the second conical tooth, the transmission rod is positioned in the valve cover and is provided with a second tooth row, the second gear is meshed with the second tooth row for transmission, and a driving device for driving the driving shaft to rotate is arranged in the valve cover.
Further improved are: the driving device comprises a driving gear, the driving gear is arranged on the driving shaft, a driving gear row is arranged on the inner wall of the valve cover in a vertical sliding mode, the driving gear row is in meshed transmission with the driving gear, and a reciprocating device for driving the driving gear row to slide vertically is arranged in the valve cover.
Further improved are: the reciprocating device comprises a screw rod, the screw rod is rotationally arranged in the valve cover, the screw rod is arranged on the driving gear row in a penetrating mode and is in threaded transmission with the driving gear row, and a rotary encryption device for driving the screw rod to rotate is arranged in the valve cover.
Further improved are: the rotary encryption device comprises a rotary worm, the rotary worm wheel is sleeved on the screw, the rotary worm wheel is arranged on the valve cover in a rotating mode, the rotary worm wheel is in meshed transmission with the rotary worm wheel, a starting and closing groove is formed in the rotary worm, the rotary worm is located in the valve cover, a communication channel which enables the rotary worm to be communicated with the outside is formed in the valve cover, and a sealing device is arranged in the communication channel.
Further improved are: the clamping device comprises a square first clamping rod and a square second clamping rod, the first clamping rod is arranged on the opening and closing rod and located in the valve cover, the second clamping rod is arranged on the end portion of the valve rod, and the sliding block and the rotating block are provided with avoiding channels for the first clamping rod and the second clamping rod to be clamped in, so that the first clamping rod, the rotating block and the second clamping rod are in linkage.
Further improved are: the sealing device is a sealing bolt.
Further improved are: and a rotating hand wheel is arranged on the worm.
Further improved are: the valve body is provided with a sealing box for sealing the rotating rod.
By adopting the technical scheme, the invention has the beneficial effects that:
the butterfly valve has the encryption function, and after the butterfly valve is closed, if other people do not know the operation flow, the butterfly valve cannot be opened, and only idles when the worm is rotated. Avoiding the waste of production caused by malicious opening of the butterfly valve by others, and being beneficial to the management of production. And the water theft of other people and the waste of water resources can be prevented, and the management of the living water resources of the community is facilitated. Meanwhile, when the butterfly valve is encrypted, the baffle plate can be driven to rotate 90 degrees, so that the baffle plate is perpendicular to the flow direction of water flow. Therefore, when the water hammer generated in the pipeline rushes to the butterfly valve, the water hammer is beaten on the baffle plate, so that the valve plate is protected, the valve plate is prevented from being beaten and damaged by the water hammer, and the service life of the valve is prolonged. When the valve is opened, the baffle is perpendicular to the flow direction of water flow, water flow is prevented from being influenced, and the position of the baffle is in line with the valve plate, so that the valve plate can be prevented from flushing water flow, and the sealing performance of the valve plate is further improved.
Drawings
FIG. 1 is a schematic diagram of a novel double-flange butterfly valve in a cut-away structure according to an embodiment of the invention.
Fig. 2 is an enlarged schematic view of the embodiment a of the present invention.
Fig. 3 is a schematic structural diagram of a sliding device according to an embodiment of the invention.
Description of the embodiments
The invention will now be further described with reference to the drawings and specific examples.
Referring to fig. 1-3, disclosed are embodiments of the present invention: the novel double-flange butterfly valve comprises a valve body 1, a valve cover 3 arranged on the valve body 1, a water inlet channel 2 and a water outlet channel arranged on the valve body 1, a valve plate arranged between the water inlet channel 2 and the water outlet channel, a sliding block 16, a sliding rod 27, a first clamping rod 14 and a second clamping rod 15 which are square, wherein the valve body 1 is provided with a valve rod 12, one end of the valve rod 12 is connected with the valve plate, the other end of the valve rod 12 is arranged in the valve cover 3 in a penetrating manner, a worm gear 4 is arranged in the valve cover 3, an opening and closing rod 13 is arranged in the worm gear 4 in a rotating manner, the opening and closing rod 13 is arranged in the worm gear 4 and provided with a worm gear, the worm 5 is in meshed transmission with the worm gear in a rotating manner, the sliding block 16 is arranged in the valve cover 3 in a sliding manner, the sliding block 16 is provided with a rotating block 161 in a rotating manner, the first clamping rod 14 is arranged on the opening and closing rod 13 and is arranged in the valve cover 3, the second clamping rod 15 is arranged on the end part of the valve rod 12, the sliding block 16 and the rotating block 161 are provided with avoiding channels for clamping the first clamping rod 14 and the second clamping rod 15, so that the first clamping rod 14, the rotating block 161 and the second clamping rod 15 are driven to move, the valve body 1 is positioned at the water inlet channel 2 and is rotationally provided with the rotating rod 8, one end of the rotating rod 8 is penetrated in the water inlet channel 2, the rotating rod 8 is positioned in the water inlet channel 2 and is provided with the baffle 7, the other end of the rotating rod 8 is positioned outside the valve body 1, the sliding rod 27 is slidingly arranged in the valve cover 3, the sliding rod 27 is provided with a first gear row, the valve cover 3 is rotationally provided with a first gear 28, the first gear 28 is meshed with the first gear row for transmission, the valve cover 3 is slidingly provided with the transmission rod 11, one end of the transmission rod 11 is positioned outside the valve cover 3, the other end of the transmission rod 11 is positioned in the valve cover 3, a side gear row is arranged on the side surface of the transmission rod 11, a rotary gear 10 is arranged on the rotary rod 8, the rotary gear 10 is meshed with the side gear row for transmission, a driving shaft 19 used for driving a first gear 28 to rotate and pushing a sliding rod 27 to slide and simultaneously pushing the transmission rod 11 to slide and driving the rotary gear 10 to rotate is arranged on the valve cover 3, the driving shaft 19 is rotationally arranged in the valve cover 3, one end of the driving shaft 19 is provided with a first conical gear 25, the other end of the driving shaft 19 is provided with a second gear 24, a first rotating shaft 17 is rotationally arranged in the valve cover 3, the first gear 28 is arranged on the first rotating shaft 17, the other end of the first rotating shaft 17 is provided with a second conical gear 28, the first conical gear 25 is meshed with the second conical gear 28, the driving rod 11 is positioned in the valve cover 3, a driving gear 18 used for driving the driving shaft 19 to rotate is arranged in the driving shaft 3, a first conical gear 18 is arranged on the driving shaft 19, the driving shaft 21 is rotationally arranged on the driving shaft 21, the driving shaft 21 is rotationally arranged on the driving shaft 3, the driving shaft 21 is rotationally arranged on the driving shaft 21, the driving shaft 20 is rotationally arranged on the valve cover 20, the driving shaft 20 is rotationally arranged on the driving shaft 21, the driving shaft 20 is rotationally arranged on the driving shaft 20, and is rotationally arranged on the driving shaft 21, and is in the driving shaft 20, and is rotationally arranged, and is meshed with the driving gear 21, and is meshed with the first conical gear and is. The rotating worm 22 is positioned in the valve cover 3, a communication channel which enables the rotating worm 22 to be communicated with the outside is formed in the valve cover 3, and a sealing bolt 23 is arranged in the communication channel in a threaded connection mode.
For the convenience of rotating the worm 22, a rotating hand wheel 6 is arranged on the worm 5.
In order to protect the rotating rod 8, the valve body 1 is provided with a seal box 9 for sealing the rotating rod 8.
Working principle:
when the butterfly valve is to be closed, the worm 22 is rotated, the worm 5 drives the worm wheel to rotate, the worm wheel drives the opening and closing rod 13 to rotate, the opening and closing rod 13 drives the rotating block 161 to rotate, and the rotating block 161 drives the valve rod 12 to rotate, so that the butterfly valve is closed. Then, the rotating worm 22 is rotated, the rotating worm 22 drives the rotating worm wheel to rotate, the screw 21 is driven to rotate, the screw 21 and the driving gear row 20 are in meshed transmission, the driving gear row 20 is driven to return, the driving gear 18 is driven to rotate reversely, the driving shaft 19 is driven to rotate, then the driving shaft 19 is rotated, the first conical tooth 25 and the second hammer-shaped worm are in meshed transmission, the first rotating shaft 17 is driven to rotate, the first gear 28 is driven to rotate, then the first gear 28 and the first gear row are in meshed transmission, the sliding rod 27 is driven to return, the sliding rod 27 returns to enable the rotating block 161 to return, the transmission between the first clamping rod 14 and the second clamping rod 15 is released due to the return of the rotating block 161, and at the moment, the worm 22 is rotated by others, and a butterfly valve is not opened. The other end of the driving shaft 19 drives the second gear 24 to rotate, the second gear 24 is meshed with the second gear row for transmission, the driving rod 11 is driven to return, the side gear row on the side face is meshed with the rotating gear 10 for transmission when the driving rod 11 returns, the rotating gear 10 is driven to rotate reversely, the rotating gear 10 drives the rotating rod 8 to rotate reversely, the rotating rod 8 drives the baffle 7 to rotate 90 degrees, and the baffle 7 is vertical to the water flow direction. Therefore, when the water hammer generated in the pipeline rushes to the butterfly valve, the water hammer is beaten on the baffle 7, so that the valve plate is protected, the valve plate is prevented from being beaten and damaged by the water hammer, and the service life of the valve is prolonged. When the valve is opened, the baffle 7 is perpendicular to the flow direction of water flow, so that the influence on the water flow is avoided, and the position of the baffle 7 is in line with the valve plate, so that the valve plate can block the water flow from flushing, and the sealing performance of the valve plate is further improved.
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 (10)

1. The utility model provides a novel double flange butterfly valve, includes the valve body, locates the valve gap on the valve body, sets up inlet channel and outlet channel on the valve body, locates the valve plate between inlet channel and the outlet channel, be equipped with the valve rod on the valve body, valve rod one end is connected with the valve plate, the valve rod other end wears to locate in the valve gap, be equipped with the worm gear case in the valve gap, the worm gear incasement rotates and wears to be equipped with the open-close lever, the open-close lever is located the worm gear incasement and is equipped with the worm wheel, the last rotation of worm gear case is equipped with the worm, worm and worm wheel meshing transmission, its characterized in that: still include the sliding block, the sliding block slides and locates in the valve gap, the rotation is equipped with the rotating block on the sliding block, the sliding block slides to valve rod and opens and close the pole and make valve rod and open and close the pole interlock through the block device, the valve body is located water inlet channel department rotation and is equipped with the dwang, water inlet channel is worn to locate by dwang one end, the dwang is located water inlet channel and is equipped with the baffle, the dwang other end is located the valve body outside, be equipped with in the valve gap and be used for driving the sliding block to slide and dwang pivoted slip device.
2. The novel double-flange butterfly valve of claim 1, wherein: the sliding device comprises a sliding rod, the sliding rod is arranged in a valve cover in a sliding mode, a first gear row is arranged on the sliding rod, a first gear is arranged in the valve cover in a rotating mode, the first gear is in meshed transmission with the first gear row, a transmission rod is arranged on the valve cover in a sliding mode, one end of the transmission rod is located outside the valve cover, the other end of the transmission rod is located in the valve cover, a side gear row is arranged on the side face of the transmission rod, a rotating gear is arranged on the rotating rod, the rotating gear is in meshed transmission with the side gear row, and a linkage device used for driving the first gear to rotate to push the sliding rod to slide and simultaneously push the transmission rod to slide to drive the rotating gear to rotate is arranged on the valve cover.
3. The novel double-flange butterfly valve of claim 1, wherein: the linkage device comprises a driving shaft, the driving shaft is rotationally arranged in the valve cover, one end of the driving shaft is provided with a first conical tooth, the other end of the driving shaft is provided with a second gear, the valve cover is rotationally provided with a first rotating shaft, the first gear is arranged on the first rotating shaft, the other end of the first rotating shaft is provided with a second conical tooth, the first conical tooth is meshed with the second conical tooth, the transmission rod is positioned in the valve cover and is provided with a second tooth row, the second gear is meshed with the second tooth row for transmission, and a driving device for driving the driving shaft to rotate is arranged in the valve cover.
4. A novel double flange butterfly valve according to claim 3, wherein: the driving device comprises a driving gear, the driving gear is arranged on the driving shaft, a driving gear row is arranged on the inner wall of the valve cover in a vertical sliding mode, the driving gear row is in meshed transmission with the driving gear, and a reciprocating device for driving the driving gear row to slide vertically is arranged in the valve cover.
5. The novel double flange butterfly valve of claim 4, wherein: the reciprocating device comprises a screw rod, the screw rod is rotationally arranged in the valve cover, the screw rod is arranged on the driving gear row in a penetrating mode and is in threaded transmission with the driving gear row, and a rotary encryption device for driving the screw rod to rotate is arranged in the valve cover.
6. The novel double flange butterfly valve of claim 5, wherein: the rotary encryption device comprises a rotary worm, the rotary worm wheel is sleeved on the screw, the rotary worm wheel is arranged on the valve cover in a rotating mode, the rotary worm wheel is in meshed transmission with the rotary worm wheel, a starting and closing groove is formed in the rotary worm, the rotary worm is located in the valve cover, a communication channel which enables the rotary worm to be communicated with the outside is formed in the valve cover, and a sealing device is arranged in the communication channel.
7. The novel double-flange butterfly valve of claim 1, wherein: the clamping device comprises a square first clamping rod and a square second clamping rod, the first clamping rod is arranged on the opening and closing rod and located in the valve cover, the second clamping rod is arranged on the end portion of the valve rod, and the sliding block and the rotating block are provided with avoiding channels for the first clamping rod and the second clamping rod to be clamped in, so that the first clamping rod, the rotating block and the second clamping rod are in linkage.
8. The novel double flange butterfly valve of claim 6, wherein: the sealing device is a sealing bolt.
9. The novel double-flange butterfly valve of claim 1, wherein: and a rotating hand wheel is arranged on the worm.
10. The novel double-flange butterfly valve of claim 1, wherein: the valve body is provided with a sealing box for sealing the rotating rod.
CN202311320963.5A 2023-10-12 2023-10-12 Novel double-flange butterfly valve Pending CN117108756A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311320963.5A CN117108756A (en) 2023-10-12 2023-10-12 Novel double-flange butterfly valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311320963.5A CN117108756A (en) 2023-10-12 2023-10-12 Novel double-flange butterfly valve

Publications (1)

Publication Number Publication Date
CN117108756A true CN117108756A (en) 2023-11-24

Family

ID=88811219

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311320963.5A Pending CN117108756A (en) 2023-10-12 2023-10-12 Novel double-flange butterfly valve

Country Status (1)

Country Link
CN (1) CN117108756A (en)

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