CN113324052B - Industrial butterfly valve - Google Patents
Industrial butterfly valve Download PDFInfo
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- CN113324052B CN113324052B CN202110740276.3A CN202110740276A CN113324052B CN 113324052 B CN113324052 B CN 113324052B CN 202110740276 A CN202110740276 A CN 202110740276A CN 113324052 B CN113324052 B CN 113324052B
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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
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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
- F16K1/32—Details
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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
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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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
- F16K1/32—Details
- F16K1/48—Attaching valve members to screw-spindles
- F16K1/487—Attaching valve members to screw-spindles by a fixing element extending in the axial direction of the spindle, e.g. a screw
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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
- 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
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses an industrial butterfly valve, which comprises a valve body, a valve rod, a valve seat and a butterfly plate, and is characterized in that: the valve rod is divided into an upper valve rod and a lower valve rod which are coaxially arranged, the upper valve rod can rotate, lift and penetrate through the upper part of the valve body, the lower valve rod can rotate and be arranged in the valve body, the lower pull rod penetrates through the upper part of the lower valve rod, the lower pull rod is driven by the upper valve rod to lift, the butterfly plate is provided with a guide hole, one side of the guide hole is provided with a guide valve clack, the guide valve clack can rotate, and gear rack transmission is formed between the guide valve clack and the lower pull rod; go up the valve stem upper end and be equipped with the cylinder liner, be equipped with the piston in the cylinder liner, be equipped with the lower feed liquor hole of intercommunication feed liquor side on the valve body, be equipped with the ring channel between valve body and the last valve stem, be equipped with last feed liquor hole on the last valve stem, be equipped with the outage on the valve body, go up feed liquor hole upper end intercommunication cylinder liner piston cavity down, go up feed liquor hole lower extreme intercommunication ring channel, lower feed liquor hole intercommunication ring channel and set the left hand wheel that the control switched on, the outage intercommunication ring channel sets the right hand wheel that the control switched on. The invention has simple structure and easy opening.
Description
Technical Field
The invention relates to an improved butterfly valve, in particular to an improved industrial butterfly valve.
Background
Butterfly valve by extensive application in trades such as petroleum refining, long-distance pipeline, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, steel, traditional butterfly valve is when opening, because before the valve with behind the valve pressure differential great, opening torque is big, opens the difficulty, traditional way is: set up the mode of bypass (increase a bypass valve promptly at the side of valve, butterfly valve import is connected to this bypass valve one end, and the butterfly valve export is connected to the other end, when the butterfly valve is opened to needs, at first open the bypass valve, before the valve that makes the butterfly valve with the valve after pressure differential reduce to moment when reducing the butterfly valve and opening, open more easily), its shortcoming lies in: because increase a valve more, its manufacturing cost is high, and the external interface of butterfly valve increases simultaneously, and the corresponding leakage point that has increased leads to leaking more easily.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide an industrial butterfly valve which is simple in structure and easy to open.
In order to solve the technical problems, the invention is realized by adopting the following technical scheme: this kind of industrial butterfly valve, including valve body, valve rod, disk seat and butterfly plate, the butterfly plate is installed on the valve rod, the sealed cooperation of disk seat and butterfly plate, its characterized in that: the valve rod is divided into an upper valve rod and a lower valve rod which are coaxially arranged, the upper valve rod can rotate, lift and penetrate through the upper part of the valve body, the lower valve rod can rotate, and is arranged in the valve body, a lower pull rod penetrates through the upper part of the lower valve rod, the lower pull rod is driven by the upper valve rod to lift, a guide hole for conducting a liquid inlet side and a liquid outlet side is arranged on the butterfly plate, a guide valve flap which is in sealing fit with the guide hole is arranged on one side of the guide hole, the guide valve flap can rotate and is arranged on a rotating shaft, the rotating shaft is arranged on a fixed frame, the fixed frame is arranged on the butterfly plate, and gear rack transmission is formed between the guide valve flap and the lower pull rod; the upper end of the upper valve rod is provided with a cylinder sleeve, a piston is arranged in the cylinder sleeve, the piston is provided with a return spring, a lower liquid inlet hole communicated with the liquid inlet side is arranged on the valve body, an annular groove is arranged between the valve body and the upper valve rod, an upper liquid inlet hole is arranged on the upper valve rod, a liquid outlet hole is arranged on the valve body, the upper end of the upper liquid inlet hole is communicated with a lower piston cavity of the cylinder sleeve, the lower end of the upper liquid inlet hole is communicated with the annular groove, the lower liquid inlet hole is communicated with the annular groove and is provided with a left hand wheel for controlling conduction, and the liquid outlet hole is communicated with the annular groove and is provided with a right hand wheel for controlling conduction; go up the valve rod lower part and be equipped with the keyway, be equipped with the key on the butterfly plate, the key cooperatees with the keyway, and the key can remove the horizontal setting in the notch of butterfly plate to set compression spring, still wear to be equipped with the last pull rod that can reciprocate on the upper valve rod, go up the pull rod upper end and link to each other with the piston, go up the pull rod lower extreme and stretch into the keyway, and the upper pull rod lower extreme is equipped with the kicking block, and the kicking block can drive the key and break away from the keyway.
The upper end of the valve body is provided with a support, the support is provided with a worm gear sleeve, a worm and a threaded sleeve, the worm gear sleeve is sleeved on the upper valve rod and is in circumferential linkage and axial relative sliding fit with the upper valve rod, the worm gear sleeve is rotatably arranged on the support through worm transmission, the worm is provided with an upper hand wheel, the threaded sleeve is fixed on the support, and the upper valve rod is arranged in the threaded sleeve in a penetrating manner and is in threaded connection with the upper valve rod.
The upper portion of the upper valve rod is provided with a polygonal column, and the worm gear sleeve is sleeved on the polygonal column in a matching mode.
And a pre-pressing spring is arranged between the fixing frame and the guide valve clack, and the guide valve clack is tightly attached to the butterfly plate under the action of the pre-pressing spring.
The axle of the left hand wheel is screwed on the valve body, and the front end of the axle of the left hand wheel can be communicated with the lower liquid inlet hole and the annular groove.
The wheel shaft of the right hand wheel is in threaded connection with the valve body, and the front end of the wheel shaft of the right hand wheel can be communicated with the liquid discharge hole and the annular groove.
The upper end of the lower pull rod is provided with a T-shaped head, the lower end of the upper valve rod is provided with a T-shaped cavity, and the T-shaped head is arranged in the T-shaped cavity.
The improved industrial butterfly valve has the advantages that the valve is internally provided with the guide valve clack and the valve hole, the guide valve clack is easily and conveniently opened before the butterfly valve is opened, after a medium in front of the valve enters the valve through the valve hole, the pressure in front of the valve and behind the valve is reduced, the butterfly valve is easily opened, the manufacturing cost is low, the number of external interfaces is small, and the leakage is not easy to occur.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a cross-sectional view D-D of fig. 1 of the present invention.
Fig. 3 is a cross-sectional view E-E of fig. 1 according to the present invention.
Fig. 4 is a lower structural view of fig. 1 of the present invention.
Detailed Description
The drawings show the structure of the invention, and the details thereof are further described below with reference to the drawings. In this embodiment, the industrial butterfly valve includes a valve body 1, a valve stem, a valve seat 26 and a butterfly plate 28, the butterfly plate 28 is installed on the valve stem, the valve seat 26 is in sealing fit with the butterfly plate 28, a sealing ring 27 is arranged on the outer circle of the corresponding butterfly plate 28, the valve stem is divided into an upper valve stem 4 and a lower valve stem 2 which are coaxially arranged, the upper valve stem 4 is rotatably lifted and lowered and penetrates through the upper portion of the valve body 1, the lower valve stem 2 is rotatably arranged in the valve body 1, the lower valve stem 2 is fixedly connected with the butterfly plate 28 through a positioning pin 35, a lower pull rod 3 is penetrated through the upper portion of the lower valve stem 2, the lower pull rod 3 is driven by the upper valve stem 4 to lift and lower, a guide hole 31 which conducts the liquid inlet side and the liquid outlet side is arranged on the butterfly plate 28, a pilot valve flap 30 which is in sealing fit is arranged on one side of the guide hole 31, the pilot valve flap 30 is rotatably arranged on a rotating shaft 34, the rotating shaft 34 is installed on a fixing frame 33, the pilot valve 28, and a gear rack transmission is formed between the valve flap 30 and the lower pull rod 3; the upper end of the upper valve rod 4 is provided with a cylinder sleeve 20, a piston 19 is arranged in the cylinder sleeve 20, the piston 19 can move up and down in the cylinder sleeve 20 in a sealing manner, an upper piston cavity of the cylinder sleeve 20 is provided with a breathing hole, the piston 19 is provided with a return spring 21, the return spring 21 is arranged in the upper piston cavity and is respectively connected with the piston 19 and the cylinder sleeve 20, a lower liquid inlet hole 8 communicated with a liquid inlet side is arranged on the valve body 1, an annular groove 10 is arranged between the valve body 1 and the upper valve rod 4, an upper liquid inlet hole 11 is arranged on the upper valve rod 4, a liquid outlet hole 24 is arranged on the valve body 1, the upper end of the upper liquid inlet hole 11 is communicated with a lower piston cavity 18 of the cylinder sleeve 20, the lower end of the upper liquid inlet hole 11 is communicated with the annular groove 10, the lower liquid inlet hole 8 is communicated with the annular groove 10 and is provided with a left hand wheel 9 for controlling conduction, and the liquid outlet hole 24 is communicated with the annular groove 10 and provided with a right hand wheel 25 for controlling conduction; go up valve rod 4 lower part and be equipped with keyway 29, be equipped with key 6 on the butterfly plate 28, key 6 cooperatees with keyway 29, the length of keyway 29 is greater than the length of key 6, and key 6 can move about and set up in the notch of butterfly plate 28 to set compression spring 7, still wear to be equipped with the last pull rod 12 that can reciprocate on going up valve rod 4, go up pull rod 12 upper end and link to each other with piston 19, go up pull rod 12 lower extreme and stretch into keyway 29, and go up pull rod 12 lower extreme and be equipped with kicking block 5, kicking block 5 can drive key 6 and break away from keyway 29, be equipped with the drive inclined plane on the kicking block 5.
As a further improved specific embodiment, a support 23 is arranged at the upper end of the valve body 1, a worm gear sleeve 15, a worm 17 and a screw sleeve 14 are arranged on the support 23, the worm gear sleeve 15 is sleeved on the upper valve rod 4 and is in circumferential linkage and axially and relatively matched with the upper valve rod in a sliding manner, the worm gear sleeve 15 is rotatably arranged on the support 23 through the transmission of the worm 17, the worm 17 is provided with an upper hand wheel 22, the screw sleeve 14 is fixed on the support 23, the upper valve rod 4 is arranged in the screw sleeve 14 in a penetrating manner and is in threaded connection with the upper valve rod, and an external thread 13 is arranged on the corresponding upper valve rod; preferably, the upper part of the upper valve rod 4 is provided with a polygonal column 16, and the worm gear sleeve 15 is matched and sleeved on the polygonal column 16.
As a further improved embodiment, a pre-pressure spring 32 is provided between the fixing frame 33 and the pilot valve flap 30, and the pilot valve flap 30 tightly contacts the butterfly plate 28 under the action of the pre-pressure spring 32, so as to enhance the sealing performance between the pilot valve flap 30 and the guide hole 31.
As a further improved specific embodiment, the axle of the left hand wheel 9 is screwed on the valve body 1, and the front end of the axle of the left hand wheel 9 can lead the lower liquid inlet hole 8 and the annular groove 10.
As a further improved embodiment, the wheel shaft of the right hand wheel 25 is screwed on the valve body 1, and the front end of the wheel shaft of the right hand wheel 25 can conduct the liquid discharge hole 24 and the annular groove 10.
As a specific embodiment of further improvement, a T-shaped head is arranged at the upper end of the lower pull rod 3, a T-shaped cavity is arranged at the lower end of the upper valve rod 4, and the T-shaped head is arranged in the T-shaped cavity, so that the upper valve rod 4 only drives the lower pull rod 3 to lift when rotating and lifting.
The use method of the invention comprises the following steps:
the starting process comprises the following steps: the left hand wheel 9 is rotated to enable the lower liquid inlet hole 8 to be communicated with the annular groove 10 and further communicated with the upper liquid inlet hole 11, a medium in front of the valve (on the liquid inlet side) enters the lower piston cavity 18, the piston 19 is pushed to move upwards to drive the upper pull rod 12 and the ejector block 5 to move upwards, the ejector block 5 moves to the upper portion of the key groove 29, the ejector block 5 pushes the key 6 to move rightwards to enter the groove inlet, and the key 6 is separated from the upper portion of the key groove 29 of the upper valve rod 4. Then the upper hand wheel 22 is rotated, the worm gear 17 transmission is formed between the worm 17 and the worm gear sleeve 15, the worm gear sleeve 15 and the upper valve rod 4 are driven to rotate, meanwhile, the upper valve rod 4 rotates and moves upwards due to the fact that the upper valve rod 4 and the screw sleeve 14 are in threaded connection, the upper valve rod 4 drives the lower pull rod 3 to move upwards, the lower pull rod 3 and the pilot valve flap 30 are in rack and pinion transmission, the pilot valve flap 30 is driven to rotate around the rotating shaft 34 at the moment, the pilot valve flap 30 is opened, the front part (liquid inlet side) of the valve is communicated with the back part (liquid outlet side) of the valve through the guide hole 31, after part of media in front of the valve enters the valve through the guide hole 31, the pressure difference between the front part and the back part of the valve is reduced, the upper hand wheel 22 is continuously rotated to drive the upper valve rod 4 to move upwards, when the key 6 is just arranged at the corresponding position of the lower part of the key groove 29, the key 6 enters the lower part of the key groove 29, the upper hand wheel 22 is continuously rotated to drive the butterfly valve to rotate and open, the sealing ring 27 is rotated and opened along with the rotation of the butterfly plate 28, the sealing ring 27 is separated from the valve seat 26, the valve is opened, and the moment, the moment is small, the moment of opening butterfly valve is small, the moment of opening is labor-saving and is convenient and the butterfly valve.
And (3) closing process: the left hand wheel 9 is rotated to isolate the lower liquid inlet hole 8 from the annular groove 10, so that the lower liquid inlet hole 8 is isolated from the upper liquid inlet hole 11, then the right hand wheel 25 is rotated to discharge the medium in the lower piston cavity 18 through the liquid discharge hole 24, the piston 19 moves downwards under the action of the reset spring 21 to drive the upper pull rod 12 and the top block 5 to move downwards, the top block 5 moves to the lower part of the key groove 29 and pushes the key 6 to be separated from the lower part of the key groove 29, the upper hand wheel 22 is rotated reversely, the upper valve rod 4 is driven to rotate and move downwards through the worm 17 and the worm wheel sleeve 15, the lower pull rod 3 is driven to move downwards at the moment, the upper guide hole 22 is driven to rotate around the rotating shaft 34 due to the gear rack transmission formed between the lower pull rod 3 and the guide valve flap 30, the guide valve flap 30 is driven to close 31, the upper hand wheel 22 is continuously rotated to drive the upper valve rod 4 to rotate and move downwards, when the key 6 is just arranged at the corresponding position of the upper part of the key groove 29, the upper guide hole 22 is continuously rotated to drive the butterfly valve to rotate and close the butterfly valve 26, the butterfly valve 27, and the butterfly valve seat is tightly pressed with the butterfly valve seat 28.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides an industrial butterfly valve, including valve body, valve rod, disk seat and butterfly plate, the butterfly plate is installed on the valve rod, the sealed cooperation of disk seat and butterfly plate, its characterized in that: the valve rod is divided into an upper valve rod and a lower valve rod which are coaxially arranged, the upper valve rod can rotate, lift and penetrate through the upper part of the valve body, the lower valve rod can rotate, and is arranged in the valve body, a lower pull rod penetrates through the upper part of the lower valve rod, the lower pull rod is driven by the upper valve rod to lift, a guide hole for conducting a liquid inlet side and a liquid outlet side is arranged on the butterfly plate, a guide valve flap which is in sealing fit with the guide hole is arranged on one side of the guide hole, the guide valve flap can rotate and is arranged on a rotating shaft, the rotating shaft is arranged on a fixed frame, the fixed frame is arranged on the butterfly plate, and gear rack transmission is formed between the guide valve flap and the lower pull rod; the upper end of the upper valve rod is provided with a cylinder sleeve, a piston is arranged in the cylinder sleeve, the piston is provided with a return spring in a matching way, a lower liquid inlet hole communicated with the liquid inlet side is formed in the valve body, an annular groove is formed between the valve body and the upper valve rod, an upper liquid inlet hole is formed in the upper valve rod, a liquid outlet hole is formed in the valve body, the upper end of the upper liquid inlet hole is communicated with a lower piston cavity of the cylinder sleeve, the lower end of the upper liquid inlet hole is communicated with the annular groove, the lower liquid inlet hole is communicated with the annular groove and is provided with a left hand wheel for controlling conduction in a matching way, and the liquid outlet hole is communicated with the annular groove and is provided with a right hand wheel for controlling conduction in a matching way; go up the valve rod lower part and be equipped with the keyway, be equipped with the key on the butterfly plate, the key cooperatees with the keyway, and the key can remove the horizontal setting in the notch of butterfly plate to set compression spring, still wear to be equipped with the last pull rod that can reciprocate on the upper valve rod, go up the pull rod upper end and link to each other with the piston, go up the pull rod lower extreme and stretch into the keyway, and the upper pull rod lower extreme is equipped with the kicking block, and the kicking block can drive the key and break away from the keyway.
2. The industrial butterfly valve of claim 1, wherein: the upper end of the valve body is provided with a support, the support is provided with a worm gear sleeve, a worm and a threaded sleeve, the worm gear sleeve is sleeved on the upper valve rod and is in circumferential linkage and axial relative sliding fit with the upper valve rod, the worm gear sleeve is rotatably arranged on the support in a worm transmission mode, the worm is provided with an upper hand wheel in a matching mode, the threaded sleeve is fixed on the support, and the upper valve rod is arranged in the threaded sleeve in a penetrating mode and is in threaded connection with the upper valve rod.
3. The industrial butterfly valve of claim 2, wherein: the upper portion of the upper valve rod is provided with a polygonal column, and the polygonal column is sleeved with the worm gear sleeve in a matching mode.
4. The industrial butterfly valve of claim 1, wherein: and a pre-pressing spring is arranged between the fixing frame and the guide valve clack, and the guide valve clack is tightly attached to the butterfly plate under the action of the pre-pressing spring.
5. The industrial butterfly valve of claim 1, wherein: the axle of the left hand wheel is screwed on the valve body, and the front end of the axle of the left hand wheel can be communicated with the lower liquid inlet hole and the annular groove.
6. The industrial butterfly valve of claim 1, wherein: the wheel shaft of the right hand wheel is in threaded connection with the valve body, and the front end of the wheel shaft of the right hand wheel can be communicated with the liquid discharge hole and the annular groove.
7. The industrial butterfly valve of claim 1, wherein: the upper end of the lower pull rod is provided with a T-shaped head, the lower end of the upper valve rod is provided with a T-shaped cavity, and the T-shaped head is arranged in the T-shaped cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110740276.3A CN113324052B (en) | 2021-07-01 | 2021-07-01 | Industrial butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110740276.3A CN113324052B (en) | 2021-07-01 | 2021-07-01 | Industrial butterfly valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113324052A CN113324052A (en) | 2021-08-31 |
| CN113324052B true CN113324052B (en) | 2023-03-10 |
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ID=77425238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110740276.3A Active CN113324052B (en) | 2021-07-01 | 2021-07-01 | Industrial butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113324052B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5000213A (en) * | 1989-06-30 | 1991-03-19 | Allied-Signal Inc. | Butterfly valve method and apparatus |
| CN1916458A (en) * | 2006-09-06 | 2007-02-21 | 方建生 | Pneumatic butterfly valve in sanitation level |
| CN2900954Y (en) * | 2006-05-24 | 2007-05-16 | 湖南泵阀制造有限公司 | Piston type liquid control butterfly valve |
| CN105221767A (en) * | 2015-10-31 | 2016-01-06 | 河北工业大学 | A kind of Zero-friction hard-sealing butterfly valve |
| EP3048350A1 (en) * | 2015-01-26 | 2016-07-27 | Hamilton Sundstrand Corporation | Butterfly valve with modified scotch yoke connection |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111336261B (en) * | 2020-04-10 | 2021-07-13 | 希佛隆阀门集团有限公司 | Stop valve for pipeline |
-
2021
- 2021-07-01 CN CN202110740276.3A patent/CN113324052B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5000213A (en) * | 1989-06-30 | 1991-03-19 | Allied-Signal Inc. | Butterfly valve method and apparatus |
| CN2900954Y (en) * | 2006-05-24 | 2007-05-16 | 湖南泵阀制造有限公司 | Piston type liquid control butterfly valve |
| CN1916458A (en) * | 2006-09-06 | 2007-02-21 | 方建生 | Pneumatic butterfly valve in sanitation level |
| EP3048350A1 (en) * | 2015-01-26 | 2016-07-27 | Hamilton Sundstrand Corporation | Butterfly valve with modified scotch yoke connection |
| CN105221767A (en) * | 2015-10-31 | 2016-01-06 | 河北工业大学 | A kind of Zero-friction hard-sealing butterfly valve |
Non-Patent Citations (1)
| Title |
|---|
| 气动调节阀在制氧设备使用中存在的问题及解决方法;刘震;《通用机械》;20090610(第06期);全文 * |
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| CN113324052A (en) | 2021-08-31 |
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